JAI LT-400CL User Manual

1011E-0909

LT-400CL

3CMOS High Speed Color

Line Scan Camera

Document Version: Ver.1.3

LT-400CL_Ver.1.3_Nov2011

User's Manual

LT-400CL

2

Notice

The material contained in this manual consists of information that is proprietary to JAI Ltd.,

Japan and may only be used by the purchasers of the product. JAI Ltd., Japan makes no warranty for the use of its product and assumes no responsibility for any errors which may appear or for damages resulting from the use of the information contained herein. JAI Ltd., Japan reserves the right to make changes without notice.

Company and product names mentioned in this manual are trademarks or registered trademarks of their respective owners.

Warranty

For information about the warranty, please contact your factory representative.

Certifications

CE compliance

As defined by the Directive 2004/108/EC of the European Parliament and of the Council, EMC (Electromagnetic compatibility), JAI Ltd., Japan declares that LT-400CL complies with the following provisions applying to its standards. CISPR Pub.22 (Emission) CISPR Pub.24 (Immunity) IEC61000-4-2 Conforming Level 4 (Electrostatic discharge immunity test)

FCC

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver

is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Warning

Changes or modifications to this unit not expressly approved by the party

responsible for FCC compliance could void the user’s authority to operate the

equipment.

LT-400CL

Supplement

The following statement is related to the regulation on “ Measures for the Administration of the control of Pollution by Electronic Information Products “ , known as “ China RoHS “. The table shows contained Hazardous Substances in this camera.

mark shows that the environment-frien dly u se period of containe d Hazard ous

Substances is 15 years.

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方忖仝15々葎豚㍉15定。

LT-400CL

3

- Contents –

1. General ........................................................................................................ 5

2. Camera nomenclature ...................................................................................... 5

3. Main features ................................................................................................. 5

4. Locations and functions .................................................................................... 6

4.1. Main unit ................................................................................................ 6

4.2. Rear Panel and indicators ............................................................................ 7

Note: Factory default settings for both functions are “OFF”. ............................................. 7

5. Input and output (connectors, signals and circuits) ................................................... 8

5.1. 12-Pin Connector (Hirose) ............................................................................. 8

5.2. Digital Output / Interface Connectors for Camera Link ......................................... 8

5.3. Camera Link output ................................................................................... 9

5.4. Input and output circuits ............................................................................ 11

5.4.1 Trigger input ...................................................................................... 11

5.4.2 EEN/XEEN output (Exposure Enable ) ...................................................... 11

6. Functions and Operation.................................................................................. 12

6.1. Basic functions ........................................................................................ 12

6.2. Sensor layout and output timing ................................................................... 12

6.3. Key functions .......................................................................................... 13

6.3.1 Line rate (Command LR) ........................................................................ 13

6.3.2 Electronic shutter (Exposure) (Command PER, PEG, PEB) ................................. 13

6.3.3 EEN (Exposure Enable) function ............................................................... 14

6.3.4 White balance .................................................................................... 14

6.3.5 Gain control ....................................................................................... 15

6.3.6 Setup level ........................................................................................ 16

6.3.7 Knee correction .................................................................................. 17

6.3.8 PRNU (Pixel Response Non-Uniformity ) correction ......................................... 17

6.3.9 DSNU (Dark Signal Non-Uniformity) correction .............................................. 18

6.3.10 Shading correction ............................................................................... 19

6.3.11 Binning ............................................................................................. 20

6.3.12 Sub-sampling ...................................................................................... 20

6.3.13 Windowing ......................................................................................... 20

6.3.14 Test pattern generator .......................................................................... 20

6.4. Operation modes ..................................................................................... 22

6.4.1 No-shutter mode with internal trigger ........................................................ 22

6.4.2 No-shutter mode with external trigger ....................................................... 24

6.4.3 Shutter-select mode with internal trigger ................................................... 26

6.4.4 Shutter-select mode with external trigger ................................................... 28

6.4.5 Pulse Width Control (PWC) mode .............................................................. 31

6.4.6 Compatibility of trigger modes and functions ............................................... 33

7. Configuring the camera ................................................................................... 34

7.1. RS-232C control ....................................................................................... 34

7.2. LT-400CL Command list ............................................................................. 35

8. Functions listed alphabetically by command acronyms ............................................. 40

8.1. Command AH – One-push AWB shutter ............................................................ 40

8.2. Command AHRS – Request status after One-Push AWB ......................................... 40

8.3. Command AL – Automatic Line Rate Reference Level .......................................... 40

8.4. Command AR – Automatic Line Rate setting ..................................................... 40

8.5 Command ARST – Auto reset mode ................................................................ 41

8.6 Command AW – Activate One-push Auto White Balance (AWB) - Gain ...................... 41

8.7 Command AWRS – Inquire the status after one-push AWB ..................................... 41

8.8 Command BA – Bit Allocation ....................................................................... 41

8.9 Command BI – Binning (Horizontal only) .......................................................... 42

8.10 Command BL – Master Black Level ................................................................ 42

LT-400CL

4

8.11 Commands BLR and BLB – Black level red and black level blue .............................. 42

8.12 Command BLM – Black level mode ................................................................ 42

8.13 Command EI – Interlocked R and B exposure with G ........................................... 42

8.14 Command GA – Gain level master / G channel.................................................. 43

8.15 Commands GAR and GAB – Red and blue gain levels ........................................... 43

8.16 Command GM – Gain mode ......................................................................... 43

8.17 Command KN – Knee ON/Off ....................................................................... 43

8.18 Commands KSR, KSG and KSB – Knee slope for R, G and B .................................... 43

8.19 Commands KPR, KPG and KPG – Knee point for R, G and B ................................... 43

8.20 Command LR - Line Rate (Scan Rate) ............................................................ 44

8.21 Command NR – Noise reduction ................................................................... 44

8.22 Command PBC – Select pixel black correction mode ........................................... 44

8.23 Command PBR – Run pixel black correction and store to user area ......................... 44

8.24 Command PBS – Inquire the status of after pixel black correction .......................... 45

8.25 Command PER – Programmable exposure – Red................................................. 45

8.26 Command PEG – Programmable exposure – Green ............................................. 45

8.27 Command PEB – Programmable exposure – Blue ................................................ 45

8.28 Command PGC – Pixel gain correction mode .................................................... 45

8.29 Command PGR – Run pixel gain correction and store in user area ........................... 46

8.30 Command PGS – Inquire the status after pixel gain correction............................... 46

8.31 Command SDC – Select shading correction mode ............................................... 46

8.32 Command SDR – Run shading correction ......................................................... 46

8.33 Command SDS – Request status after executing shading correction command ............ 48

8.34 Commands SGR,SGG,SGB – Gain Low, High ...................................................... 48

8.35 Command SRO – Sensor read out .................................................................. 48

8.36 Command TG – Trigger Origin ...................................................................... 48

8.37 Command TI – Trigger input ........................................................................ 48

8.38 Command TP – Trigger polarity .................................................................... 49

8.39 Command TR – Trigger Mode ....................................................................... 49

8.40 Command TS – Test pattern ........................................................................ 49

8.41 Command WB – White Balance .................................................................... 49

9. Camera Control Tool for LT-400CL ..................................................................... 50

10. External appearance and Dimensions .................................................................. 53

11 . Specifications ............................................................................................ 55

11.1 Typical data ............................................................................................ 55

11.2 Spectral sensitivity .................................................................................... 58

Appendix .......................................................................................................... 59

1. Precautions .............................................................................................. 59

2. Typical Sensor Characteristics ........................................................................ 59

3. Caution when mounting a lens on the camera ..................................................... 59

4. Caution when mounting the camera ................................................................. 59

5. Exportation .............................................................................................. 60

6. References ............................................................................................... 60

Change History ................................................................................................... 61

User's Record ..................................................................................................... 62

LT-400CL

5

1. General

LT-400CL is a 3CMOS line scan camera using three 4096 pixel line sensors mounted on a prism, for the R, G and B channels. It operates with an 80 MHz pixel clock, resulting in a maximum line rate of 16,180 lines per second. The camera outputs digital data in 3 x 8 bits or 3 x 10 bits format via Camera Link. The camera is configured by software through the serial communication port of the Camera Link interface, or via RS-232C through a 12-pin Hirose connector. The camera accepts M52 or F-mount lens.

The latest version of this operation manual can be downloaded from www.jai.com . The latest camera control tool for the LT-400CL can be downloaded from www.jai.com .

For camera revision history, please contact your local JAI distributor

2. Camera nomenclature

The standard camera composition consists of:

LT-400CL camera body with F mount x 1 Lens mount/sensor protection cap x 1

The camera is available in the following versions: LT-400CL-M52/-F Where L stands for “Linear sensor” family, T stands for “Tri sensor”, 400 represents the

resolution “ 4000 pixels”, 400 represents variation with the same resolution and CL stands for “CameraLink®” interface. M52 stands for M52 lens mount version and F stands for the Nikon F

mount version

3. Main features

 3CMOS line scan camera with 4096 pixel resolution  Dichroic RGB beam splitter prism  16,180 lines per second scan rate  80 MHz pixel clock  3 x 8 bits or 3 x 10 bits output through Camera Link interface  Flat-field correction. Pixel-by-pixel compensation on each RGB channel  Flat shading compensation  Color shading compensation  One-push white balance  Knee correction  Noise reduction circuit ON/OFF  Pixel binning  Sub-sampling readout  Windowing readout  Test pattern generator(color bar, gray, white) for set-up and troubleshooting  Electronic shutter (for shutter selected modes)  Lens mount is M52 as a standard and F mount as a factory option  DC input range from +12 V to +24V  Short ASCII commands for set-up via RS 232C or Camera Link  Setup by Windows XP software

LT-400CL

6

4. Locations and functions

4.1. Main unit

Fig. 1 Location of external features

1 Camera Link base connector (1) (*Note1) 2 Camera Link medium connector (2) (*Note1) 3 12-pin Hirose connector for DC +12, External trigger and RS-232C 4 LED indicator Orange, steady: Initializing or one-push operation Green, steady: Operating, but not receiving external trigger Green, flashing: Operating and receiving external trigger 5 One-push auto white balance button 6 SW-1 (refer to chapter 4.2)

7. M52 lens mount (Note 2) 8 Nikon F-Mount lens mount(Note2) 9 Mounting holes 8 x M3, depth 5mm (*Note3)

*Note1: When a Camera Link cable is connected to the camera, please do not excessively tighten

screws by using driver. The Camera Link receptacle on the camera might be damaged. For security, the strength to tighten screws is less than 0.291 Newton Meter (Nm).Tightening by hand is sufficient in order to achieve this.

*Note2: The rear protrusion of lens should be within 13mm for both M52 mount lens and

Nikon-F mount lens.

*Note3: The depth of mounting hole is 5mm ± 0.2mm. If the longer screws than 5.2mm are used, they

may damage the circuit board inside.

SW1

/ TRIG

DC IN

W.B.

TRIG

POWER/

DIGI TAL I/ O -2 DIGI TAL I/ O -1

Serial No.

FCC seal

①

②

③④

⑤

⑥

⑦

⑧

⑨

LT-400CL

7

4.2. Rear Panel and indicators

Fig.2 Rear panel

 LED

There is a multi-color LED on the rear panel of the camera. It has the following functions:

Green (Steady) Operating, but not receiving external trigger input Green (Flashing) Operating and receiving external trigger input.

Note that the flashing frequency does not correspond to the frequency of the trigger signal. Note: In no-shutter/internal and shutter select/internal modes, this LED does not flash.

 Orange

Initializing or executing one-push white balance

 Push button This push button is used for gain white balance.

 DIP switch SW-1 function

No

Function

Settings

ON

OFF

1

Serial communication

Hirose 12Pin

Camera link (CC1)

2

Termination of External trigger

75Ω

TTL

Note: Factory default settings for both functions are “OFF”.

Fig.3 DIP switch

Rear panel indicator LED

OFF

ON

Serial Communication

75 Ω

Push button

DIP switch

LT-400CL

8

5. Input and output (connectors, signals and circuits)

5.1. 12-Pin Connector (Hirose)

Type: HR10A-10R-12PB(71) Hirose (Male) Use the part number HR10A-10P-12S for the cable side

Pin No.

Signal

Remarks

1

GND

2

DC in

+12V to +24V

3

GND

4

Reserved

Do not connect

5

GND

6

RxD in

RS-232C

7

TxD out

RS-232C

8

GND

9

XEEN out

10

Trigger in

TI=1, or set TI=0 for input via CL

11

NC

12

GND

5.2. Digital Output / Interface Connectors for Camera Link

Type: 26P MRD Connector 3M 110226-1A10PL

Fig. 5 Camera Link connector

This camera can be used with all Camera Link products that comply with the AIA Camera Link standard. Cables, transmission systems and frame grabbers/acquisition boards that do not comply with the Camera Link standard may work with this camera, but JAI Camera Solutions cannot be held responsible for loss in performance or damage of equipment, including the camera.

Recommended cable assembly

3M 14B26-SZLB-XXX-OLC ( where XXX is the length of cable) The applicable cable length is 0.5m to 10m. 14B26-SZ3B-XXX-03V(small diameter type) and 14B26-SZ3B-XXX-04C(high flexion type) can be used but the length will be limited.

Connector 1 (24Bit, 30 Bit)

Pin No

In/Out

Name

Note

1,14 Shield

GND

2(-),15(+)

O

TxOUT0

Data out

3(-),16(+)

O

TxOUT1

4(-),17(+)

O

TxOUT2

5(-),18(+)

O

TxClk

Clock for CL

6(-),19(+)

O

TxOUT3

Data out

7(+),20(-)

I

SerTC (RxD)

LVDS Serial Control

8(-),21(+)

O

SerTFG (TxD)

9(-),22(+)

I

CC1 (Trigger)

Trigger

10(+),23(-)

I

CC2(Reserved)

11,24 N.C

12,25 N.C

13,26

Shield

GND

Fig.4 12-pin Hirose connector

LT-400CL

9

Connector 2 ( Used only for 3 x 10 Bit output)

Pin No

In/Out

Name

Note

1,14 Shield

GND

2(-),15(+)

O

TxOUT0

Data out

3(-),16(+)

O

TxOUT1

4(-),17(+)

O

TxOUT2

5(-),18(+)

O

TxClk

Clock for CL

6(-),19(+)

O

TxOUT3

Data out

7(+),20(-)

N.C

8(-),21(+)

N.C

9(-),22(+)

N.C

10(+),23(-)

N.C

11,24 N.C

12,25 N.C

13,26

Shield

GND

The LT-400CL follows the Camera Link standard in all respects.

Please refer to the Camera Link version 1.1 specifications for detailed information on bit assignments of 24-bit RGB and 30-bit bit output.

5.3. Camera Link output

RD9～RD0 : R Channel Camera Data(RD9=MSB, RD0=LSB) GD9～GD0 : G Channel Camera Data(GD9=MSB, GD0=LSB) BD9～BD0 : B Channel Camera Data(BD9=MSB, BD0=LSB)

× : Not in use

LT-400CL

10

24bit Output

30bit Output

Connector

Pin Name

Port A0

RD0

1

Tx0

Port A1

RD1

1

Tx1

Port A2

RD2

1

Tx2

Port A3

RD3

1

Tx3

Port A4

RD4

1

Tx4

Port A5

RD5

1

Tx6

Port A6

RD6

1

Tx27

Port A7

RD7

1

Tx5

Port B0

GD0

RD8

1

Tx7

Port B1

GD1

RD9

1

Tx8

Port B2

GD2

×

1

Tx9

Port B3

GD3

×

1

Tx12

Port B4

GD4

BD8

1

Tx13

Port B5

GD5

BD9

1

Tx14

Port B6

GD6

×

1

Tx10

Port B7

GD7

×

1

Tx11

Port C0

BD0

1

Tx15

Port C1

BD1

1

Tx18

Port C2

BD2

1

Tx19

Port C3

BD3

1

Tx20

Port C4

BD4

1

Tx21

Port C5

BD5

1

Tx22

Port C6

BD6

1

Tx16

Port C7

BD7

1

Tx17

Port D0

×

2

Tx0

Port D1

×

2

Tx1

Port D2

×

2

Tx2

Port D3

×

2

Tx3

Port D4

×

2

Tx4

Port D5

×

2

Tx6

Port D6

×

2

Tx27

Port D7

×

2

Tx5

Port E0

×

GD0

2

Tx7

Port E1

×

GD1

2

Tx8

Port E2

×

GD2

2

Tx9

Port E3

×

GD3

2

Tx12

Port E4

×

GD4

2

Tx13

Port E5

×

GD5

2

Tx14

Port E6

×

GD6

2

Tx10

Port E7

×

GD7

2

Tx11

LT-400CL

11

5.4. Input and output circuits

5.4.1 Trigger input

The External Trigger signal can be applied either through the Camera Link connector or at pin 10 of the 12-pin Hirose connector. The command to change this setting is TI (Trigger Input). TI=0 for Camera Link connector (factory default) and TI=1 for 12-pin Hirose connector. The input via the 12-pin Hirose connector is AC coupled. To allow long pulses, which may be required when using the Pulse Width Control (PWC) trigger mode, the input circuit is designed as a flip-flop circuit. The leading and trailing edges of the trigger pulse activate the circuit. The trigger input polarity can be changed by the command TP. At the 12-pin Hirose connector the External Trigger input is 4V ± 2V (TTL). It can be changed to 75 ohm termination by a DIP switch setting (SW 1) located on the rear panel.

5.4.2 EEN/XEEN output (Exposure Enable )

This output corresponds to the exposure (accumulation) time of the camera. It works with all operation modes. It is, however, not active when the test pattern function is enabled. The EEN signal is available at the Camera Link connector and at the 12-pin Hirose connector at the same time. At the Camera Link connector this signal has positive logic. At pin 9 of the 12-pin Hirose connector the signal has negative logic, and is therefore named XEEN. The output circuit is a 75 ohm complementary emitter follower. The circuit is powered from the 5V supply, resulting in an output level of more than 4V. It is not terminated.

Fig. 7 XEEN Circuit (12-pin Hirose)

Fig. 6 Trigger input (12-pin Hirose)

LT-400CL

12

6. Functions and Operation

6.1. Basic functions

The LT-400CL is built around three high-performance CMOS line scan image sensors mounted on a prism block, as illustrated in Figure 7.

Fig.8 Sensor block diagram The incoming light is divided into three primary colors, Red, Blue and Green and transmitted to each sensor. The output from each sensor is LVDS and it is converted to parallel digital signals in the sensor interface. Each signal then is transmitted to processing circuits which manipulate in the necessary characteristics and output via the Camera Link interface. The functions in the processing circuits are described in the following sections.

6.2. Sensor layout and output timing

The LT-400CL uses newly developed COMS sensors which have 4096 effective pixels. Light received on photodiodes is converted to electronic signals and these signals are handled in a correlated double sampling circuit, analog gain circuit and analog digital converter circuit. After that, digital signals are serialized and output. All those circuits are inside the sensor package. CMOS sensors can provide higher rates and lower power consumption than CCDs of equivalent resolution.

Sensor interface

Process circuits

Auto black DSNU correction PRNU correction Shading correction Gain Line matrix User black setup Digital binning

Camera link interface

Camera link B a s e & M e d i u m

LT-400CL

13

Fig.9 Sensor layout

Fig.10 Video output timing

6.3. Key functions

6.3.1 Line rate (Command LR)

This function can set the line rate longer than 1L. Accordingly, it is possible to set the camera scan rate with the object running speed or to boost up the sensitivity by setting longer exposure time.

 Adjusting range: 61.8µs(1L) to 15.02ms  Adjusting unit: 12.5ns  Operation mode: TG=0 Internal trigger

The line rate can be automatically configured (one-push auto line set) (Command:AR). This function will calculate and set the line rate of the camera based on the Automatic Line Rate Reference Level (Command :AL) and the scene illumination.

6.3.2 Electronic shutter (Exposure) (Command PER, PEG, PEB)

This function sets the exposure time regardless of line rate setting. The exposure time can be set for red, blue, and green, respectively.

Command PER= 4800 to 1194752 PEG= 4800 to 1194752 PEB= 4800 to 1194752

 Adjusting range: 60μs (4800clk) to 14.93ms (1194752clk)

(RGB individually)

 Adjusting unit: 12.5 ns (1clock) (RGB individually)  Operation mode: Shutter select/internal trigger and shutter

select/external trigger

Note:

Exposure time can be set as mentioned before. However, if the line rate is shorter than the exposure time, the accumulation time is determined by the line rate. This should be noted especially in external trigger mode.

LT-400CL

14

Line rate > Exposure time

Fig.11 Exposure setting should be less the line rate

6.3.3 EEN (Exposure Enable) function

This function outputs the timing for image accumulation in all operating modes except test pattern output. The output can be through both the Hirose 12-pin and Camera Link connectors. The polarity of this output is negative from the Hirose 12-pin connector and positive from the Camera Link connector. These polarities cannot be changed.

Fig.12 EEN function

6.3.4 White balance

In this function, the green channel video level is used as the reference. Red and blue channel levels are adjusted to match with that of the green channel. There are two ways to adjust white balance: one is the gain white balance and the other is the shutter white balance.

White balance

Control tool

Command

Rear panel

switch

WB

AH

Gain

○ ○ ☓

○

Shutter

○ ☓ ○

☓

Gain white balance

Calculates the difference between green and red video levels, and green and blue levels,

and adjusts the red and blue channels’ video level so that the video level of all three

channels becomes equal.

Command WB=0 Manual/One push AWB WB=1 4000K WB=2 4600K WB=3 5600K

(I nternal /Ext ernal)

Line rate (LR) = 20000

Exposure (Rch) =22000

In this case, although the expsore time is set at 22000, but the actual exposure time is limited by the line rate, 20000.

Exposure B

Exposure G

Exposure R

EEN

(I nternal /Exter nal )

Tr i gger

EEN represents with the longets exposure time among R,G and B

LT-400CL

15

Shutter white balance (only for shutter select mode)

Calculates the difference between green and red video levels, and green and blue levels,

and adjusts the red and blue channels’ shutter speed so that the video level of all three

channels becomes equal.

Command AH=0 Activate One push shutter AWB

Note:

If gain and shutter white balance are used in the external trigger mode, external trigger pulses should be continuously provided while white balance adjustment is executing.

6.3.5 Gain control

The LT-400CL has two ways of gain setting - one for the master tracking and the other for individual adjustment. Each setting also has two analog gain modes - one is the GAIN LOW and the other is the GAIN HIGH. When the Gain Low is selected, gain for each channel can be adjusted from -4dB to +14dB as the reference of 0dB which is the default output setting. If the Gain High is selected, the reference level is changed to +6dB and gain for each channel can be adjusted as the reference of +6dB. The following shows the setting procedures and adjustable range.

1. Master tracking mode

Gain Low mode:

 Reference value: 0dB  Master gain control range : 0dB to 8dB  R/B Adjusting range :-4dB to +6dB (at the master gain setting value)

Gain High mode:

 Reference value: +6dB  Master gain control range : 0dB to 8dB  R/B Adjusting range :-4dB to +6dB (at the master gain setting value)

Fig.13 Master gain mode with Gain Low and High

LT-400CL

16

2. Individual gain mode

Gain Low mode:

 Reference value: 0dB  R/G/B Adjusting range :-4dB to +14dB (at the master gain setting value)

Gain High mode:

 Reference value: +6dB  R/G/B Adjusting range :-4dB to +14dB (at the master gain setting value)

Fig.14 Individual gain mode with gain low and gain high

6.3.6 Setup level

This function adjusts the setup level (black). This depends on the gain mode.

Gain Set at Master tracking mode:

 Adjusting range Master(green) : 0LSB to 64LSB(16LSB)

Red : -64(-16) LSB to +64(16)LSB Blue : -64(-16) LSB to +64(16)LSB Figures in ( ) are for 8 bits output

Gain Set at Individual mode:

 Adjusting range Red : 0LSB to 64(16) LSB

Green : 0LSB to 64(16) LSB Blue : 0LSB to 64(16) LSB Figures in ( ) are for 8 bits output Note: Red, green and blue can be adjusted individually

0 d B

+ 1 4 d B

+ 2 0 d B

+ 6 d B

- 4 d B

Red

Bl ueGr een

Red

Bl ueGr een

- 400

0

1400

- 400

0

1400

SGR=0 SGG=0

SGB=0

SGR=1 SGG=1 SGB=1

GAIN = LOW

GAIN = HIGH

GAR= GAG= GAB=

GAR=

GAG= GAB=

GM=1

LT-400CL

17

6.3.7 Knee correction

If the relationship of input and output is linear (1:1), the output level will be clipped at a certain input level and cannot reproduce the details in the clipped area. The knee compensation circuit can keep the linear relationship until the knee point, while after the knee point, the output signal is compressed to reproduce the details. This compression area can be set by a knee slope. The knee point and knee slope can be set individually.

Function

Length

Variable type

Setting range

Knee Point

10bit

Unsigned integer

0LSB ～ 1023LSB

Knee Slope

16bit

Unsigned fixed point

0001h(x0.000015) ～ FFFFh(x1.0000)

The following drawing shows the characteristics of Knee Point 890LSB and Knee Slope 1000h.

Output Camera Link Data Level

1023

890

0

0 4095

Input Data Level

2848

Knee Point = 37Ah (890)

Knee Slope = 1000h (1/16)

In this case : Maximum Value is 968 LSB.

968

[100%]

32

[0%]

Knee Point

1279

102

1/16

Fig.15 Knee and knee slope characteristics

6.3.8 PRNU (Pixel Response Non-Uniformity ) correction

PRNU (Pixel Response Non-Uniformity) is, as the name implies, a non-uniformity of the response of each individual pixel. This means that for a fixed light level each pixel will have a slightly different output level (response).

Fig.16 Conceptual drawing for PRNU correction (1)

Max

Min

Multiply by Factor > 1

Multiply by Factor < 1

Before correction: Non-uniform response from pixel to pixel

Average

LT-400CL

18

To correct for PRNU, the camera’s internal correction circuit captures one or several lines of data under non-saturated illuminated conditions which are not more than 80% of maximum (recommend level is half of maximum), and the average across the line is calculated. Based on this average, coefficients are then generated for each individual pixel. The coefficient has the function of multiplying the pixel output with a factor greater or less than 1. These coefficients are stored in a non-volatile memory, and are therefore maintained after power down.

Fig.17 Conceptual drawing for PRNU correction (2)

6.3.9 DSNU (Dark Signal Non-Uniformity) correction

DSNU (Dark Signal Non-Uniformity) is, as the name implies, a non-uniformity of offset level of each pixel, which is not dependent on the incoming light.

Fig.18 Conceptual drawing of DSNU correction

To correct for DSNU, the camera internal correction circuit captures one or several lines of data under dark conditions (the lens must be covered by a lens cap), and the average across the line is calculated. Based on the average, coefficients are then generated for each individual pixel. The coefficient has the function of adding or subtracting a value to the pixel output. These coefficients are stored in a non-volatile memory, and are therefore maintained after power down.

As the dark signal is highly dependent on the exposure time, this correction must be performed under the operating conditions (exposure time and line rate) that will be used by the application.

Fig.19 Conceptual drawing of DSNU correction

Average

After correction: Flat dark signal response from pixel to pixel

Max

Before correction: dark signal non-uniformity from pixel to pixel

Subtract factor

Add factor

Min

Average

After correction: flat response from pixel to pixel

Average

LT-400CL

19

6.3.10 Shading correction

Shading is caused either by illumination with uneven distribution of light across the surface, or by reductions in the light transmission ratio towards the edges of a lens. The shading correction incorporated in the camera will compensate for this effect by as much as 20% of the brightest signal. Shading is not compensated for each individual pixel. The signal is averaged across groups of 8 pixels in relation to the whole line. The pixel response non-uniformity will be superimposed on the output also after shading correction has been performed. Therefore, it is recommended to perform PRNU correction before shading correction.

Fig.20 Shading correction

The shading correction has two ways to compensate, flat shading correction and color shading correction. Flat shading correction compensates red, blue and green signals to be flat output. The range of compensation is within plus-or-minus 20% as compared the brightest signal level. It may not compensate enough according to the lenses and/or lighting in use. Color shading correction compensates red and blue signals to match with green signal characteristics. The following drawings show the concepts for flat and color shading corrections.

Fig.21 Flat shading correction Fig.22 Color shading correction

Shading caused by uneven illumination or transmission at the edges of the lens.

Pixel response non-uniformity will be superimposed on the output signal

Individual shading correction

per channel

Shading correction tracking

the green channel

LT-400CL

20

6.3.11 Binning

In this mode, a camera combines the charge collected in two adjacent pixels. This halves the effective resolution to 2048 pixels, but doubles the sensitivity. The line rate is not affected by binning.

Fig.21 Binning reads out adjacent pixels at the same time

6.3.12 Sub-sampling

In this mode, every two effective pixels are read out. Accordingly, the read out rate is doubled. The FOV (Field Of View) is not changed versus full scan mode but the resolution becomes half.

Fig.22 Sub-sampling reads out every two pixels

6.3.13 Windowing

In this mode, only the effective 2048 pixels in the center portion can be read out and accordingly, the readout rate is doubled. FOV becomes half as compared to the full pixel read out. 2048 pixels are a fixed number and cannot be varied by the user.

Fig.23 Windowing reads out only 2048 pixels at the center

6.3.14 Test pattern generator

LT-400CL has four test pattern generators. In the following drawings, figures in shown in ( ) are for 8 bits output.

4092 4093

4094

4095

4096409140904089408840871 2 3 4 5 6 7 8 9 10

20482047204620452044

5

4321

1 3 5 7 9 40964094409240904088

20482047204620452044

5

4321

2 4 6 8 10

4087

4089

4091 4093

4095

20482047204620452044

5

4321

1025 1026 1027 1028 1029 30723071307030693068102410231 2 3073 3074 40964095

LT-400CL

21

Color bar

Fig.24 color bar test pattern

Gray 1

Fig.25 Gradation test pattern

Gray 2

Fig.26 Multi burst test pattern

White

Fig.27 White test pattern

０

4095

32(8)

0

890(222)

０

32(8)

0

890(222)

DVAL

Si gnal （RGB

16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16・・・

4095

０

32(8)

0

890(222)

DVAL

4095

LT-400CL

22

6.4. Operation modes

The LT-400CL has the following operation modes.

Trigger Mode

Trigger origin

Command

Description

Command

Description

1

TR=0

No-shutter TG=0

Internal

2

TG=1

External

3

TR=1

Shutter select TG=0

Internal

4

TG=1

External

5

TR=2

Pulse width control

TG=1

-

6.4.1 No-shutter mode with internal trigger

In this mode the camera does not accept an external trigger signal, as the line rate is generated from an internal clock (user programmable, command LR). The exposure time is directly proportional to the line rate (T

exp

= 1/line rate). This mode is used when there is no external trigger signal available, and the speed of the object is fixed or can be pre-determined. The line rate can be varied from 61.8μs to 15.02ms in 1 clock (12.5ns) steps. When using this mode, a special function called “one-push auto line rate” is available. This mode automatically maintains a constant output level by changing the line rate. See chapter 7 (configuring the camera) for further details on this function. The line rate is automatically adjusted in order maintain sensitivity without reducing the S/N ratio.

To use this mode: Set function Trigger mode, No-shutter TR=0 Trigger origin, internal TG=0 Line rate LR=4944 to 1201920

(61.8µs to 15.02ms in 12.5ns

increments) Optional functions when using this mode: One-push auto line rate AR=0 Auto line rate reference AL=0 to 1023 One-push white balance WB

Important Note

 The “one-push auto line rate” function is not recommended for continuous web

applications, as the speed of motion needs to be adjustable in order to maintain the aspect ratio of the image.

 Only gain based one-push white balance functions (WB) are available with this mode.

LT-400CL

23

Fig.30 No-shutter / internal trigger mode

Fig.31 No-shutter mode / Binning/ Internal

1496clk

EEN

896clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP AP409

1496clk

EEN

896clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP AP409

LT-400CL

24

Fig.32 No-shutter /Sub-sampling and Window/ Internal

6.4.2 No-shutter mode with external trigger

In this mode, the exposure time is directly proportional to the line rate. The line rate is generated externally by a trigger signal. This mode is used when an external trigger signal is available, e.g. from an encoder, and the scan rate can be controlled by this signal. The camera can accept an external trigger through the Camera Link connector or though the 12-pin Hirose connector.

To use this mode: Set function Trigger mode, No-shutter TR=0 Trigger origin, external TG=1 Trigger input TI=0 or 1

Important note:

 When the one-push white balance has been initiated and the rear panel LED shows

orange, the camera must receive continuous external trigger pulses corresponding to the frequency and duty cycle used in the application.

 Minimum trigger interval

Scan mode

Trigger input via

Minimum interval (µs)

Full/Binning Camera link

62.3

Hirose 12-pin

66.8

Sub-sampling/windowing Camera link

37.0

Hirose 12-pin

41.5

 Minimum trigger pulse width

Trigger input via

Minimum trigger pulse width

Camera link

500 ns

Hirose 12-pin

5µs

1496clk

EEN

896clk

LVAL

16clk 2048clk 16clk

DVAL

Data

AP

AP204

LT-400CL

25

Fig. 33 No-shutter mode with external trigger

Fig. 34 No-shutter mode /Binning/ External

TG

147clk

1496clk

EEN

1043clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP AP409

TG

147clk

1496clk

EEN

1043clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP

AP409

LT-400CL

26

Fig.35 No-shutter mode /Sub-sampling and Window/ External

6.4.3 Shutter-select mode with internal trigger

This mode allows the user to have full control of the line rate and the exposure time individually, by programming separate timing generators. Subsequently the camera does not accept an external trigger signal in this mode.

To use this mode: Set function Trigger mode, Shutter-select TR=1 Line rate LR=61.8μs to 15.02ms Trigger origin, internal TG=0 Individual R, G and B exposure EI=0(individual)

EI=1(tracking with G)

Programmable exposure PER/PEG/PEB=4800 to 1194752

(60µs to 14.9ms in 12.5ns steps)

Important note:

 If using individual exposure, the EEN signal represents the channel with the longest exposure

time

 The maximum exposure time is the line rate setting.  For one-push white balance, both shutter gain (AH) and gain(AW) are effective.

TG

147clk

1496clk

EEN

1043clk

LVAL

16clk 2048clk 16clk

DVAL

Data

AP AP204

LT-400CL

27

Note: EEN is used a channel with the largest exposure value

Fig. 36 Shutter-select mode with internal line rate generator (and individual exposure)

Note: EEN is used a channel with the largest exposure value

Fig.37 Shutter-select mode /Binning/ Internal

EEN

Note 1

Exposure R

Exposure G

Exposure B

896clk 896clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP AP409

EEN

Note 1

Exposure R

Exposure G

Exposure B

896clk 896clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP AP409

LT-400CL

28

Note: EEN is used a channel with the largest exposure value

Fig.38 Shutter –select mode/Sub-sampling and Window/ Internal

6.4.4 Shutter-select mode with external trigger

This mode allows the user to have full control of the exposure time, by programming a timing generator, while the line rate is controlled by an external trigger signal. The camera can accept an external trigger through the Camera Link connector or though the 12-pin Hirose connector.

To use this mode: Set function Trigger TR=1 Trigger origin, external TG=1 Individual R, G and B exposure EI=0(individual)

EI=1(tracking with G)

Programmable exposure PER/PEG/PEB=4800 to 1194752

(60µs to 14.9ms in 12.5ns steps)

Important note:

 If using individual exposure, the EEN signal represents the channel with the longest exposure

time

 The minimum trigger interval

Scan mode

Trigger input via

Minimum interval (µs)

Full/Binning Camera link

62.3

Hirose 12-pin

66.8

Sub-sampling/windowing Camera link

37.0

Hirose 12-pin

41.5

EEN

Not e 1

Exposure R

Exposure G

Exposure B

896clk 896clk

LVAL

16clk 2048clk 16clk

DVAL

Data

AP AP204

LT-400CL

29

 The minimum trigger pulse width

Trigger input via

Minimum trigger pulse width

Camera link

500 ns

Hirose 12-pin

5µs

 The maximum exposure time is the line rate.  When the one-push white balance has been initiated and the rear panel LED shows orange,

the camera must receive continuous external trigger pulses corresponding to the frequency and duty cycle used in the application.

Note: EEN is used a channel with the largest exposure value

Fig. 39 Shutter-select mode with external trigger (and individual exposure)

TG

851clk

EEN

Note 1

Exposure R

Exposure G

Exposure B

896clk

LVAL

16clk 4096clk 16cl k

DVAL

Data

AP AP409

LT-400CL

30

Note: EEN is used a channel with the largest exposure value

Fig.40 Shutter select mode /Binning /External

Note: EEN is used a channel with the largest exposure value

Fig.41 Shutter-select /Sub-sampling and Window/ External

TG

851clk

EEN

Note 1

Exposure R

Exposure G

Exposure B

896clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP AP409

TG

851clk

EEN

Note 1

Exposure R

Exposure G

Exposure B

896clk

LVAL

16clk 2048clk 16clk

DVAL

Data

AP AP204

LT-400CL

31

6.4.5 Pulse Width Control (PWC) mode

In this mode, the user has full control of both the line rate and the exposure time of each line via the External Trigger input. At the rising edge of the External Trigger signal, the exposure is initiated, and at the falling edge the exposure is terminated and read out. The camera can accept an external trigger through the Camera Link connector or through the 12-pin Hirose connector.

To use this mode: Set function Trigger mode, PWC TR=2

Important Note:

 The minimum trigger interval

Scan mode

Trigger input via

Minimum interval (µs)

Full/Binning Camera link

Exposure time + 62.3

Hirose 12-pin

Exposure time + 66.8

Sub-sampling/windowing Camera link

Exposure time + 37.0

Hirose 12-pin

Exposure time + 41.5

 The minimum trigger pulse width

Trigger input via

Minimum trigger pulse width

Camera link

67.57µs

Hirose 12-pin

67.57µs

 One-push white balance by gain setting only.  When the one-push white balance has been initiated and the rear panel LED shows orange,

the camera must receive continuous external trigger pulses corresponding to the frequency and duty cycle used in the application.

Fig. 42 Pulse Width Control mode

TG

851clk 128clk

EEN

896clk

LVAL

16clk 4096cl k 16clk

DVAL

Data

AP

AP409

LT-400CL

32

Fig.43 PWC mode /Binning

Fig.44 PWC mode /Sub-sampling and Window

TG

851clk 128clk

EEN

896clk

LVAL

16clk 4096clk 16clk

DVAL

Data

AP

AP409

TG

851clk 128clk

EEN

896clk

LVAL

16clk 2048clk 16clk

DVAL

Data

AP

AP204

LT-400CL

33

6.4.6 Compatibility of trigger modes and functions

Trigger

Image output format

Gain

Offset

Mode

Origin

Full

resolution

Binning

Sub

sampling

Windowing

Gain Low

Gain High

Master

tracking

Individual

No-Shutter

Internal

◎ ◎ ◎ ◎ ◎ ◎ ◎

◎

External

Shutter select

Internal

◎ ◎ ◎ ◎ ◎ ◎ ◎

◎

External

PWC

External

◎ ◎ ◎ ◎ ◎ ◎ ◎

◎

Trigger

Shading

correction

AWB

Test

pattern

Auto Line

Rate

Mode

Origin

FLAT

COLOR

Gain

Shutter

No-Shutter

Internal

◎ ◎ ◎ × ◎

◎

External

○ ○ ○

○

×

Shutter select

Internal

◎ ◎ ◎ ◎ ◎

◎

External

○ ○ ○ ○ ○

×

PWC

External

○ ○ ○ × ○

×

Note: ◎ They can be used together. ○ They can be used together but when the compensation data is acquiring or test signal

is displaying, the trigger pulse should be continuously input.

× They cannot be used together.

LT-400CL

34

7. Configuring the camera

All the modes and functions of this camera are controlled by serial communication, via the Camera Link connector or via RS-232C on the Hirose 12-pin connector. Chapter 7.1 shows the complete list of ASCII commands. Chapter 7.2 describes the commands in detail, in alphabetical order (sorted by the command acronym)

7.1. RS-232C control

All configuration of the LT-400CL camera is done via the RS-232C port on the 12-pin HR connector or via Camera Link. The camera can be set up from a PC running terminal emulator software, or using JAI's camera control software. Below is the description of the ASCII based short command protocol.

Communication setting

Note: Baud rate is available for 9600bps, 19200bps, 38400bps, 57600bps and

115200bps.

Protocol.

Transmit setting to camera:

NN=Parameter<CR><LF> (NN is any kind of command. Capital or small letters.)

The camera answers:

COMPLETE<CR><LF>

To have all communication visible on the emulator screen, start with: EB=1<CR><LF>

The camera answers:

COMPLETE<CR><LF>

Transmit request command to camera:

NN?<CR><LF> (NN is any kind of command.)

The camera answers:

NN=Parameter<CR><LF>

Transmit the following to have the camera actual setting:

ST?<CR><LF>

The camera answers:

A complete list of the current settings

Transmit the following to have a command list:

HP?<CR><LF>

The camera answers:

A list with all commands and possible settings

Baud Rate

9600 bps

RS 232C cable

Data Length

8 bit

Start Bit

1 bit

Stop Bit

1 bit

Parity

None

Xon/Xoff Control

None

TXD RXD GND

1 CD 4 DTR 6 DSR 2 RXD 3 TXD 5 GND 7 RTS 8 CTS 9 CI

9 pin D-con PC COM PORT

CAMERA

TXD RXD GND

1 CD 4 DTR 6 DSR 2 RXD 3 TXD 5 GND 7 RTS 8 CTS 9 CI

9 pin D-con PC COM PORT

CAMERA

LT-400CL

35

Invalid parameters sent to camera: (99 is an invalid parameter)

SH=99<CR><LF>

The camera answers:

02 Bad Parameters!!<CR><LF>

To see firmware number. VN?<CR><LF> To see camera ID. It shows the manufacturing lot number.

ID?<CR><LF>

7.2. LT-400CL Command list

Command Name

Format

Parameter

Remarks

A – General settings and useful commands.

1

Echo Back

EB=[Param.]<CR><LF> EB?<CR><LF>

0=Echo off, 1=Echo on

Off at power up

2

Camera Status Request

ST?<CR><LF>

Actual setting

3

Online Help Request

HP?<CR><LF>

Command list

4

Firmware Program Version Request

VN?<CR><LF>

3 digits (e.g.) 100 = Version 1.00

5

FPGA Program Version Request

PV?<CR><LF>

3 digits (e.g.) 100 = Version 1.00

6

Camera ID Request

ID?<CR><LF>

max 10 characters

7

Model Name Request

MD?<CR><LF>

max 10 characters

8

User ID

UD=[Param.]<CR><LF> UD?<CR><LF>

User can save and load free text.(16 or less characters)

B - Trigger mode

1

Trigger Mode

TR=[Param.]<CR><LF> TR?<CR><LF>

0=No-shutter 1=Shutter select 2=Pulse width control

2

Trigger Origin

TG=[Param.]<CR><LF> TG?<CR><LF>

0=Internal 1=External

TG=0 is available when TR=0 or TR=1

3

Trigger Input

TI=[Param.]<CR><LF> TI?<CR><LF>

0=Camera-Link 1=Hirose12pin

4

Trigger Polarity

TP=[Param.]<CR><LF> TP?<CR><LF>

0=Active-Low 1=Active-High

5

Auto Reset Mode

ARST=[Param.]<CR><L F> ARST?<CR><LF>

0=OFF 1=ON

LT-400CL

36

C - Line Rate, Exposure

1

Line Rate

LR=[Param.]<CR><LF> LR?<CR><LF>

Full resolution

4944 to 1201920 clocks Sub-sampling/window 2921 to 597376 clocks

- 1 clock is 12.5ns

Available when TG=0

2

One-push auto line rate set

AR=[Param.]<CR><LF>

0=Activate one-push auto

line rate set

Available when TG=0

3

Auto line rate reference level

AL=[Param.]<CR><LF> AL?<CR><LF>

0 to 1023

At 10Bit

4

RB Exposure interlocked with G

EI=[Param.]<CR><LF> EI?<CR><LF>

0=Off (independent) 1=On (interlocked)

Available when TR=1

5

Programmable Exposure - Red

PER=[Param.]<CR><LF> PER?<CR><LF>

4800 to 1194752clocks

- 1 clock is 12.5ns

Available when TR=1

6

Programmable Exposure - Green

PEG=[Param.]<CR><LF > PEG?<CR><LF>

4800 to 1194752clocks

- 1 clock is 12.5ns

Available when TR=1

7

Programmable Exposure - Blue

PEB=[Param.]<CR><LF> PEB?<CR><LF>

4800 to 1194752clocks

- 1 clock is 12.5ns

Available when TR=1

8

One-push AWB shutter

AH=[Param.]<CR><LF>

0=Activate one-push AWB shutter

Available when TR=1

9

Inquire the status after one-push AWB shutter

AHRS?<CR><LF>

<One of following values will be replied from the camera> 0=AWB not finished yet. 1=Succeeded. 2=Error1 - G image was too

bright. 3=Error2 - G image was too dark. 4=Error3 - Timeout-error occurred.

D - Image format

1

Binning

BI=[Param.]<CR><LF> BI?<CR><LF>

0=Binning Off, 1=Binning On

2 Bit allocation

BA=[Param.]<CR><LF> BA?<CR><LF>

0=24bit, 1=30bit

3

Test Pattern

TS=[Param.]<CR><LF> TS?<CR><LF>

0=Off 1=Color Bar 2=Gray Pattern 1 3=Gray Pattern 2 4=White

Off at power up 4

Sensor read out

SRO＝［Param.］ <CR><LF> SRO？<CR><LF>

0=off 1=Sub-sampling 2=Windowing

LT-400CL

37

E - Gain, white balance and signal settings

1

Gain Level Master

GA=[Param.]<CR><LF> GA?<CR><LF>

0 to 800 (GM=0)

-400 to 1400 (GM=1)

100=1dB

2

Gain Level - Red

GAR=[Param.]<CR><LF> GAR?<CR><LF>

-400 to 600 (GM=0)

-400 to 1400 (GM=1)

3

Gain Level - Blue

GAB=[Param.]<CR><LF> GAB?<CR><LF>

-400 to 600 (GM=0)

-400 to 1400 (GM=1)

4

Gain Low / High Red

SGR=[Param.]<CR><LF> SGR?<CR><LF>

0=Low 1=High

5

Gain Low / High – Green/Master

SGG=[Param.]<CR><LF> SGG?<CR><LF>

0=Low 1=High

6

Gain Low / High Blue

SGB=[Param.]<CR><LF> SGB?<CR><LF>

0=Low 1=High

7

Gain Mode

GM=[Param.]<CR><LF> GM?<CR><LF>

0=Master tracking 1=Individual

8

White Balance

WB=[Param.]<CR><LF> WB?<CR><LF>

0=Manual/One push AWB 1=4000K 2=4600K 3=5600K

9

Activate One-push AWB

AW=[Param.]<CR><LF>

0=Activate one-push AWB

10

Inquire the status after one-push AWB

AWRS?<CR><LF>

<One of following values will be replied from the camera> 0=AWB has not been finished yet. 1=Succeeded. 2=Error1 – G image was too

bright. 3=Error2 – G image was too dark. 4=Error3 – Timeout-error occurred.

11

Noise reduction

NR [Param.]<CR><LF> NR？<CR><LF>

0=off 1=on

12

Black Level – Master

BL=[Param.]<CR><LF> BL?<CR><LF>

0 to 127

13

Black Level – Red

BLR=[Param.]<CR><LF> BLR?<CR><LF>

-64 to 63

14

Black Level – Blue

BLB=[Param.]<CR><LF> BLB?<CR><LF>

-64 to 63

15

Black Level mode

BLM=[Param.]<CR><LF> BLM?<CR><LF>

0=Master Tracking 1=Individual

16

Knee On/Off

KN=[Param.]<CR><LF> KN?<CR><LF>

0=Off, 1=On

17

Knee Slope – Red

KSR=[Param.]<CR><LF>

0 to 65535

LT-400CL

38

KSR?<CR><LF>

18

Knee Slope – Green

KSG=[Param.]<CR><LF> KSG?<CR><LF>

0 to 65535

19

Knee Slope – Blue

KSB=[Param.]<CR><LF> KSB?<CR><LF>

0 to 65535

20

Knee Point – Red

KPR=[Param.]<CR><LF> KPR?<CR><LF>

0 to 1023

21

Knee Point – Green

KPG=[Param.]<CR><LF> KPG?<CR><LF>

0 to 1023

22

Knee Point – Blue

KPB=[Param.]<CR><LF> KPB?<CR><LF>

0 to 1023 F – Shading correction, pixel gain and pixel black correction

1

Select shading correction mode

SDC=[Param.]<CR><LF> SDC?<CR><LF>

0=Off (Bypass) 1=Factory area 2=User area

2

Run shading correction, store to user area

SDR=[Param.]<CR><LF>

0=Run flat shading

correction, store to user area

1=Run color shading

correction, store to user area

Store in user setting.

3

Inquire the status after shading correction

SDS?<CR><LF>

0=Shading correction has not

been finished yet. 1=Succeeded. 2=Error1 – image was too

bright. 3=Error2 – image was too dark. 4=Error3 – Timeout-error

occurred.

4

Select pixel gain correction mode

PGC=[Param.]<CR><LF > PGC?<CR><LF>

0=Off (Bypass) 1=Factory area 2=User area

5

Run pixel gain correction, store to user area

PGR=[Param.]<CR><LF >

0=Run PRNU correction,

store to user area

1=Run flat correction, store

to user area

Store in user setting.

6

Inquire the status after pixel gain correction

PGS?<CR><LF>

0=Pixel gain correction has

not been finished yet. 1=Succeeded. 2=Error1 – image was too

bright. 3=Error2 s too bright.n has no 4=Error3 – Timeout-error occurred.

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39

7

Select pixel black correction mode

PBC=[Param.]<CR><LF> PBC?<CR><LF>

0=Off (Bypass) 1=Factory area 2=User area

8

Run pixel black correction, store to user area

PBR=[Param.]<CR><LF>

0=Run pixel black correction,

store to user area

Store in user setting.

9

Inquire the status after pixel black correction

PBS?<CR><LF>

0=Pixel black correction has

not been funished yet. 1=Succeeded. 2=Error1 – image was too

bright. 3=Error2 – image was too dark. 4=Error3 – Timeout-error

occurred.

G – Saving and loading data in EEPROM

1

Load Settings (from Camera EEPROM)

LD=[Param.]<CR><LF>

0=Factory area 1=User area1 2=User area2

Latest used DATA AREA will become default at next power up.

2

Save Settings (to Camera EEPROM)

SA=[Param.]<CR><LF>

1=User area1 2=User area2

Note the parameter 0 is not

allowed.

3

EEPROM Current Area No. Request.

EA?<CR><LF>

0=Factory area 1=User area1 2=User area2

The camera returns latest used DATA AREA.

Note: To avoid malfunction, do not attempt writing commands not shown in the above list.

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8. Functions listed alphabetically by command acronyms

8.1. Command AH – One-push AWB shutter

This command controls a white balance by setting an appropriate shutter speed for each channel. Settings: 0 to initiate Applicable modes: TR=1 Shutter select mode Associated functions: Commands WB,EI,PER,PEG,PEB

Important Note:

 When color temperature of used illumination exceeds the range of adjustment,

proper white balance may not be obtained.

 The data can be stored in camera memory for use at next start up.  This function can work on external trigger mode.  The S/N ratio of the output will remain constant for all channels

Refer to chapter 6.3.4 White balance for further details.

8.2. Command AHRS – Request status after One-Push AWB

This command returns the status of the One-Push AWB function, with the following

parameters: 0=AWB not completed yet 1=Succeeded 2=Error1: Green image too bright 3=Error2: Green image too dark 4=Error3: Timeout occurred

8.3. Command AL – Automatic Line Rate Reference Level

Settings: 0 to 1023(10 bit output) Applicable modes: No-Shutter with Internal trigger Shutter select with internal trigger Associated functions: Command AR

8.4. Command AR – Automatic Line Rate setting

This function will calculate and set the line rate of the camera based on the Automatic

Line Rate Reference Level (as set in command AL) and the scene illumination. Please

note that the aspect ratio of the scanned object will change as the line rate is

changed.

Settings: 0 (activate automatic process)

Applicable modes: No-Shutter with internal trigger

Shutter select with internal trigger

Associated functions: Command AL, Command TG=0

Important note

 The data can be stored in the camera memory for next start up.

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8.5 Command ARST – Auto reset mode

In the no-shutter and external trigger mode, if the trigger is input after a long time

interruption, more than 52msec , the over exposed signal during the trigger interruption is output after the first trigger. In this case, if ARST mode is ON, LAVL, DVAL and video signal are not output during the trigger interruption and LAVL, DVAL and video signal are output after the second trigger input. In the shutter select mode, the video signal is output with setting exposure time after the first trigger regardless of ASRT mode is On or OFF. This function is OFF as the default setting. ARST: 0=OFF

1=ON

8.6 Command AW – Activate One-push Auto White Balance (AWB) - Gain

By sending this command via the serial communication, the gain based One-Push AWB function is activated. This function can also be initiated by pressing the rear panel button. During this time the rear panel LED will show orange. This function operates in two steps. First the Red-to-Green channel difference and the Blue-to-Green channel difference is calculated separately. Then the gain of the Blue and Red channel is automatically adjusted, to obtain the same output level on all three channels.

Settings: 0 = activate automatic process Applicable modes: All Associated functions: Command WB (WB=0), Rear panel One-push WB button.

Important Note:

 When color temperature of used illumination exceeds the range of adjustment,

proper white balance may not be obtained.

 The data can be stored in camera memory for use at next start up.  This function can work on external trigger mode.  The S/N ratio of the output will change as a result of this function.

Refer to chapter 6.3.4 White balance for further details.

8.7 Command AWRS – Inquire the status after one-push AWB

This command returns the status of the one-push AWB function, with the following parameters: 0=Shading correction not completed yet 1=Successful 2=Error 1 – Image was too bright 3=Error 2 – Image was too dark 4=Error 3 - Timeout occurred

8.8 Command BA – Bit Allocation

This function lets the user select whether the video data is presented as 3 x 8 (24)-bit or 3 x 10 (30)-bit on the Camera Link output. The internal processing in the camera is based on a 12 bit A/D signal. The 24-bit and 30-bit function removes the least significant bits from the 12 bit signal.

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Settings: 0=24-bit, 1=30-bit

Applicable modes: All

8.9 Command BI – Binning (Horizontal only)

This function reduces the number of pixels to 256 without affecting the line rate. Two

adjacent pixels are combined at the output stage and read out as one pixel. Sensitivity

is doubled as a result of binning. Refer to Chapter 6.3.11 Binning for how it works.

Settings: 1=binning on, 0=binning off

Applicable modes: All

Important Note:

 Setting data is stored in camera memory for use at next start up

 This function is available for all modes.

8.10 Command BL – Master Black Level

This command is a global black level adjustment for all channels. The adjustable range

for master black is 0LSB to 64 (16) LSB. The number in parenthesis is valid for 24-bit

output.

Settings: 0 to 127

Associated functions: Command BLR - black level for the red channel.

Command BLB – black level for the blue channel.

8.11 Commands BLR and BLB – Black level red and black level blue

In conjunction with Command BL, these commands allow individual setting of the

black level in all channels.

Settings: -64 to 63 Associated functions: Command BL

Refer to chapter 6.3.6 for further details.

8.12 Command BLM – Black level mode

Select the master tracking mode or the individual mode.

Settings: 0=Master tracking, 1= Individual

8.13 Command EI – Interlocked R and B exposure with G

When this function enabled (interlocked), exposure time for R and B channels is

interlocked with that of G channel. The Red and Blue channels will track the Green

channel proportionally, thus maintaining white balance settings.

When this is OFF, all channels are adjusted independently.

Settings: 0= OFF (independent R, G and B settings)

1= ON(R and B channels interlocked with G channel)

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43

Applicable modes: TR=1 Shutter-select mode only Associated functions: Commands PER, PEG, PEB – Programmable Exposure

Refer to 6.3.2 Electronic shutter (Exposure)(Command PER,PEG,PEB) for further details.

8.14 Command GA – Gain level master / G channel

Adjust the master gain or G channel gain in accordance with gain mode (GM). GM=0 Master tracking Adjust as master gain Adjusting range is 0 to 800 GM=1 Individual gain Adjust for G channel Adjusting range is -400 to 1400

8.15 Commands GAR and GAB – Red and blue gain levels

In conjunction with the Command SGR, SGG and SGB, Gain Low or Gain High this function allows the individual setting of gain for all channels. It is important to note that increasing the gain will lead to an increased noise level and reduced S/N-Ratio.

Settings: -400 to 600 (where 100 equals 1dB) (GM=0)

-400 to 1400 (where 100 equals 1dB) (GM=1) Associated function: Commands SGR, SGG, SGB, GM Applicable modes: All modes Refer to chapter 6.3.5 Gain control for further details.

8.16 Command GM – Gain mode

This command sets the master tracking mode or the individual mode. GM=0 Master tracking GM=1 Individual mode

8.17 Command KN – Knee ON/Off

This command activated Knee correction function.

Settings: 0=OFF, 1=ON

8.18 Commands KSR, KSG and KSB – Knee slope for R, G and B

See command KN for description of this function

Settings: 0 to 65535 Associated functions Command KN, Commands KPR, KPG and KPG

8.19 Commands KPR, KPG and KPG – Knee point for R, G and B

See command KN for description of this function

Settings: 0 to 1023

Associated functions: Command KN, Commands KSR, KSG and KSB Refer to chapter 6.3.7 Knee correction for further details.

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44

8.20 Command LR - Line Rate (Scan Rate)

This function is used only when there is no external trigger pulse (e.g. from an

encoder) available. It allows the user to program the line rate, in order to match the

speed of the object being scanned. In the No-Shutter mode, the exposure time is

directly proportional to the line rate (T

exp

= 1/line rate)

Settings: 4944 to 1201920, 61.8μs to 15.02ms in 12.5ns increments Associated functions: Trigger origin, TG=0 Applicable modes: No-Shutter with internal line rate generator (TR=0) Shutter-Select with internal line rate generator (TR=1)

Important note

 The data can be stored in the camera memory for next start up.

Refer to chapter 6.3.1 Line rate (Command LR) for further details

8.21 Command NR – Noise reduction

This command activates noise reduction circuit.

Settings: 0=OFF, 1=ON

8.22 Command PBC – Select pixel black correction mode

This command enables (or disables) the “pixel black level” correction function, which

compensates for Dark Signal Non Uniformity (DSNU / FPN) for individual pixels.

Settings: 0 = Off (Bypass)

1 = Factory setting

2 = user area Associated functions: Command PBR Applicable modes: All

8.23 Command PBR – Run pixel black correction and store to user area

This command initiates the “pixel black level” correction function, and stores the

settings in the user area. When this function is activated, lens must be capped.

Settings: 0 = Run this function Associated functions: Command PBC must be set to 2

Important note:

 This function requires that no light reaches the image sensors. The lens must

therefore be covered by a lens cap, or put the F-mount protective cover on the camera, when executing this function.

 As the black level is influenced by the exposure time (especially for long exposure

time, at slow scan rates) it is recommended to perform the pixel black correction at the exposure time and line rate at which the camera will be operated.

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8.24 Command PBS – Inquire the status of after pixel black correction

This command returns the status of the pixel black correction, with the following parameters:

0=Shading correction not completed yet 1=Successful 2=Error 1 – Image was too bright 3=Error 2 – Image was too dark 4=Error 3 - Timeout occurred

8.25 Command PER – Programmable exposure – Red

This command allows individual setting of the exposure time of the Red channel. It is only valid for the Shutter select mode.

Settings: 4800 to 1194752 clocks,

60 μs to 14.9ms in 12.5ns steps

Applicable mode: TR=1 Shutter select mode

Associated functions: EI (R and G exposure interlocked with G)

8.26 Command PEG – Programmable exposure – Green

This command allows individual setting of the exposure time of the Green channel. It is only valid for the Shutter select mode.

Settings: 4800 to 1194752 clocks,

60 μs to 14.9ms in 12.5ns steps

Applicable mode: TR=1 Shutter select mode

Associated functions: EI (R and G exposure interlocked with G)

8.27 Command PEB – Programmable exposure – Blue

This command allows individual setting of the exposure time of the Blue channel. It is only valid for the Shutter select mode.

Settings: 4800 to 1194752 clocks,

60 μs to 14.9 ms in 12.5ns steps

Applicable mode: TR=1 Shutter select mode

Associated functions: EI (R and G exposure interlocked with G)

Refer to chapter 6.3.2 Electronic shutter (Exposure) for further details.

8.28 Command PGC – Pixel gain correction mode

This command enables (or disables) the “pixel gain” (flat-field) correction function, which compensates for Pixel Response Non Uniformity (PRNU) for individual pixels.

Settings: 0=Off (Bypass) 1=Factory Setting (default) 2=User area Associated functions: Command PGR Applicable modes: All

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46

8.29 Command PGR – Run pixel gain correction and store in user area

This command initiates the flat-field correction function, and stores the settings in the user area.

Settings: 0= Run PRNU correction and store to user area 1= Run flat correction and store to user area Associated functions: Command PGC must be set to 2

Important note:

 The image sensors must not be saturated when executing this function.  When executing this function, the exposure time and line rate should be the same as

when the camera is operated in the application.

Refer to chapter 6.3.8 PRNU (Pixel Response Non-Uniformity) correction for further details.

8.30 Command PGS – Inquire the status after pixel gain correction

This command returns the status of the pixel gain correction, with the following parameters: 0=Shading correction not completed yet 1=Successful 2=Error 1 – Image was too bright 3=Error 2 – Image was too dark 4=Error 3 - Timeout occurred

8.31 Command SDC – Select shading correction mode

This function enables (or disables) the shading correction. Settings: 0 = off (Bypass) 1 = Factory setting (default) 2 = User area Associated functions: Command SDR

8.32 Command SDR – Run shading correction

This function initiates automatic shading correction, and stores the result to the user

area. This function should be used together with the flat-field correction (commands

PGC and PGR). There are two types of shading correction: Individual R, G and B

channel correction and chromatic shading correction.

Settings: 0=Run flat shading correction and store to user area

1=Run color shading correction and store to user area

(A) Flat shading correction (SDR=0)

Shading is calculated and individually compensated for R, G and B channels respectively. The calculation is based on the average value of 8 consecutive pixels. The maximum deviation that can be compensated is -20% of the highest signal level (brightness) of the line.

LT-400CL

47

Important note:

 Depending on the optics and/or illumination used together with the camera, it may

not be possible to fully compensate for shading.

Operating procedure for individual R, G and B channel shadings correction:

1. Before making adjustment, approximately 30 minutes warming up is required.

2. Make sure the output signal is not saturated (80% of full output is recommended)

3. Set command PGC=2 and SDC=2.

4. Set command SDR to 0 to initiate shading correction.

5. If desired, set command PGR to 0 to activate pixel gain correction to correct for pixel response non-uniformity.

6. Again set SDR=0 after running the pixel gain correction

(B) Color shading correction (SDR=1)

In this mode, shading correction of R and B signals is referenced to the G signal which is the reference. When the Green channel detects “undulating” or “parabolic” type shading, R and B channels are compensated to follow the same curve. The calculation is based on the average value of 8 consecutive pixels

Important Note:

 For this function, no reference value is stored in the camera.

Operating procedure for color shadings correction:

1. Before making adjustment, approximately 30 minutes warming up is required.

2. Make sure the output signal is not saturated (80% of full output is recommended)

3. Set command PGC=2 and SDC=2.

Individual shading correction

per channel

Shading correction tracking

the green channel

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48

4. Set command SDR to 1 to initiate shading correction.

5. If desired, set command PGR to 0 to activate flat-field (pixel gain) correction to correct for pixel response non-uniformity.

6. Again set SDR=1 after running the flat-field (pixel gain) correction

Refer to chapter 6.3.10 Shading correction for further details.

8.33 Command SDS – Request status after executing shading correction command

This command returns the status of the shading correction function, with the following parameters: 0=Shading correction not completed yet 1=Successful 2=Error 1 – Image was too bright 3=Error 2 – Image was too dark 4=Error 3 - Timeout occurred

8.34 Commands SGR,SGG,SGB – Gain Low, High

These commands select the reference level, low or high for red, green and blue.

Settings 0=Low 1=High

Refer to chapter 6.3.5 Gain control for further details.

8.35 Command SRO – Sensor read out

This command selects output format.

Settings: 0=OFF 1=Sub-sampling 2=Windowing

Refer to chapter 6.3.12 Sub-sampling and 6.3.13 Windowing for how they work.

8.36 Command TG – Trigger Origin

Selects whether an external signal or an internal clock generator is used as a trigger source.

Settings: 0=Internal clock generator 1=External signal Associated commands: TI,TP

8.37 Command TI – Trigger input

Selects whether the External Trigger input signal is taken from the Camera Link connector, or from the 12-pin Hirose connector.

Settings: 0=Camera Link connector 1=12-pin Hirose connector

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49

8.38 Command TP – Trigger polarity

Settings: 0=Active Low (factory default) 1=Active High

8.39 Command TR – Trigger Mode

Selects the trigger mode of the camera. Depending on the mode used, it allows the scan rate to either be programmed by an internal timing generator or by an external trigger pulse.

Settings: 0=No-Shutter mode 1=Shutter-Select mode 2=Pulse Width Control (PWC) mode Associated functions: Command TG (trigger origin) Command TI (trigger input) Command TP (trigger polarity)

8.40 Command TS – Test pattern

This allows the camera to output a number of test patterns for set-up and

troubleshooting.

Settings: 0=off 1=Color bar 2=Gray wedge 3=Gray bars 4=White (890LSB)

Refer to chapter 6.3.14 Test pattern generator for further details.

8.41 Command WB – White Balance

The white balance function can be used for manual setting, One-Push automatic white balance (AWB) and fixed color temperatures (3 selections)

Settings: 0=Manual / On-Push AWB 1=4000K 2=4600K 3=5600K Applicable modes: All Associated functions: Command AW (Gain)

Refer to chapter 6.3.4 White balance for further details.

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9. Camera Control Tool for LT-400CL

A Camera Control Tool for Windows XP/Vista/7 can be downloaded from www.jai.com.

9.1. Software Install Execute LT-400CL_Ver.XXX.exe in the downloaded file. The setup program starts and continues according to the screen instructions.

9.2. Open the Control Tool Connect the camera to the PC on which the software is installed and set the power ON. Then

select “All programs” in the Windows start menu, select “JAI A-S” and click “LT-400CL control tool”. LT-400CL Camera Control Tool and Communication windows will open.

If the Communication window does not open, click “Help” in the Download menu of “Camera Control Tool” and click “Communication”.

9.3. Connect a camera If the frame grabber board is already installed in the connected PC, it will appear in the “Category” box in the “Communication port” pane. Click it if it is the appropriate one. If the frame grabber board is not used, select the COM port to which the camera is connected, and click “OK”. After the connection is established, the RED Off-line icon changes to GREEN and the RED bar in the bottom changes to GREEN.

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9.4. Camera control window When the connection between camera and PC is completed, the camera control tool shows the current camera settings.

9.5. Menu

9.5.1 File menu

9.5.2 Settings menu

Open: Transfer the setting parameters in

HDD or other memory devices to the camera. The extension is .cam

Save as: Store the setting parameters to HDD

or other memory devices. The extension is .cam.

Exit: Finish the software.

Reload: Read the setting parameters from

RAM area of the camera.

Load settings: Read the setting parameters from

EEPROM area of the camera.

Select from Factory, User 1 or User 2. Store settings: Store the parameters in the

EEPROM area of the camera. Select from User 1 or User 2.

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9.5.3 Line Correction menu

9.5.4 Help menu

Click Line Correction menu and a drop-down menu will open. The setting window for shading, pixel gain and pixel black can be opened.

Display camera software version, model name,

firmware version and camera ID.

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53

10. External appearance and Dimensions

Fig.45 External appearance and dimensions (M52 mount)

907

6.3

(0.28) (3.54)

(0.25)

SW1

/ TRIG

DCIN

W.B.

TRIG

POWER/

DIGITAL I/O - 2 DIGITALI / O - 1

40

25.5(7)

4-M3 depth5

(depth0.20)

(1.00)(0.28)

32.5 60

(1.28)

(2.36)

(1.57)

40

25.5(7)

4-M3 depth5

(depth0.20)

(0.28) (1.00)

32.5 60

(1.28) (2.36)

(

1.57)

S

er

i

a

l

N

o.

FCC seal

70

50

4-M3 depth3.5

4 ×6 depth3.5

+0.012

0

70

(depth0.14)

90

(3.54)

depth3.5φ4

+0.012

0

(depth0.14)

(2.76)

(1.97)

90

(3.54)

M52 Mount

Outside size tolerance: ± 0.3mm

Unit:mm , ( ) inch

LT-400CL

54

Outside size tolerance : ±0.3mm

Fig.46 External Appearance and Dimensions (Nikon F mount)

FCC seal

Serial No.

(1.57)

(2.36)

(1.28)

60

32.5

(1.00)

(0.28)

(depth0 .20)

4-M3 depth5

(7)

25.5

40

(1.57)

(2.36)

(1.28)

6032.5

(0.28) (1. 00)

(depth0 .20)

4-M3 depth5

(7) 25.5

40

DIGI TAL I/ O - 1DIGIT AL I/ O - 2

POWE R/

TRIG

W. B.

DC IN / T RIG

SW1

(0.25)

(3.54)

(0.28)

(3.54)

9

0

(1.97)

(2.76)

(depth0.14)

+0.012

0

depth3. 5

(3.54)

90

(depth0 .14)

70

0

+0.012

4 ×6 depth3.5

4-M3 depth3.5

6.37

90

50

70

LT-400CL

55

11 . Specifications

11.1 Typical data

Scanning system

Line Scan

Synchronization

Internal

Image Sensor

3 prism-mounted custom CMOS sensors Effective pixels : 4096 pixels per sensor Pixel Size : 7.0μm × 7.0μm Effective image length : 28.672 mm

Pixel clock

80.00 MHz

Total clock

Full resolution/Binning 4944clk (Internal trigger)

Sub-sampling / Windowing 2921clk (Internal trigger)

Line Rate

Full resolution/Binning 61.8μs (Internal trigger)

Sub-sampling / Windowing 36.51μs (Internal trigger)

Line rate adjustable

range

Adjustable range : 61.8μs to 15.02ms Adjustment increments : 12.5ns

Line frequency

Full resolution/Binning 16.18KHz (Internal trigger)

Sub-sampling/Windowing 27.38KHZ (Internal trigger)

Sensitivity of sensor

Radiometric: 64V/(μJ / cm2 )

Sensitivity (Standard)

2800 lux (7800K, Gain=Low, 0dB, Shutter =OFF, F2.8, Line rate:1100μs, 100% video)

S/N

55dB (Green channel, Gain=0dB）

Video output

Digital 8-Bit x 3 or 10-Bit x 3 (Camera link)

Video output format

Full resolution Binning (digital accumulation) Sub-sampling Windowing

Gain range

 Master tracking mode

Analog Gain =Low(0dB):

Master : 0dB to +8dB Red/Green/Blue : - 4dB to +14dB

Analog Gain =High(+6dB):

Master : 0dB to 8dB

Red/Green/Blue : - 4dB to +14dB

Individual mode

Analog Gain =Low(0dB):

Red/Green/Blue : - 4dB to +14dB

Analog Gain =High(+6dB):

Red/Green/Blue : - 4dB to +14dB

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56

Black level

Master tracking mode:

Master(Green) : 0 to 127LSB

Red/Blue : ± 64LSB (against the master value) Individual mode: Red/Green/Blue : 0 to 127LSB

White balance

Adjustable range : 4000K to 9000K Standard color temperature : 7800K

Knee control

Knee point : 0 to 1023 Knee slope: x0.000015 to x1.0000

Flat field correction

PRNU within ±5% after correction (at 100% output)

DSNU within ±5% after correction (at 0% output)

Shading correction

1. Flat shading correction

2. Color shading correction

Electronic shutter

Available for Shutter-select mode Adjustable range :60μs to 14.9ms Adjustment increments : 12.5ns(1 clk)

Operation mode

No-shutter (Internal/External trigger) Shutter-select (Internal/External trigger) Pulse Width Control (PWC)

Trigger input

Hirose12-pin: 4.0±2.0Vp-p TTL or Camera Link: LVDS (CC1)

Possible to change Negative Logic or Positive Logic

Sync output

(open termination)

Camera Link LVAL, DVAL, EEN Hirose 12-pin XEEN (Negative logic) 4.0 Vp-p (no termination)

Test pattern gen.

Color bar, gray 1, 2 and white, 890 LSB

Communication

interface

Via Camera Link connector or RS-232C (Hirose 12-pin connector) Baud rate: 9600bps,19200bps,38400bps,57600bps,115200bps Camera Link and Hirose 12P cannot be used at the same time.

Power

DC +12V-10% to +24V + 10% Typical: 450mA (No-shutter/internal, lens cap on) Max.: 480mA (No-shutter/internal, at saturation level) Note: Use a power supply with more than 3A current

Lens mount

LT-400CL-M52 M52 lens mount ( Standard) LT-400CL-F Nikon F-Mount (Factory option)

Maximum allowed rear protrusion on lenses: 13 mm

Flange back distance

M52 mount/Nikon F-Mount : 46.5mm

tolerance: 0 ～ -0.05mm

Optical axis

Center ±0.1mm(Max)

Operating

temperature

/Humidity

- 5C to +45C / 20 to 80% ( non-condensing)

Storage temperature

-25C to +60C, 20 to 80% ( non-condensing)

LT-400CL

57

/humidity

Vibration

3G (20Hz to 200Hz XYZ direction)

Shock

50G

Regulation

CISPR Pub.22 (EN55022)(Emission), CISPR Pub.24(Immunity) IEC61000-4-2 Conforming to Level 4 (Note 1) FCC Part15 Class B, RoHS

Dimensions

90(W) x 90(H) x 90(D) mm (without connector and lens mount protrusion)

Weight

830 g

Connectors

Camera Link: 110226-1A10PL x2 Hirose 12-Pin: HR10A-10R-12PB(71)

Note1: This specification can be satisfied when the recommended connector and cable are

used.

Note2: The above specifications are subject to change without notice.

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58

11.2 Spectral sensitivity

Fig.34 Spectral response including prism and sensors

0

10

20

30

40

50

60

70

80

90

100

400 500 600 700 800

transmittance(%)

wavelength(nm)

LT-400CL Spectral response (incl. Sensor sensitivity)

Gch Bch

Rch

LT-400CL

59

Appendix

1. Precautions

Personnel not trained in dealing with similar electronic devices should not service this camera. The camera contains components sensitive to electrostatic discharge. The handling of these devices should follow the requirements of electrostatic sensitive components. Do not attempt to disassemble this camera. Do not expose this camera to rain or moisture. Do not face this camera towards the sun, extreme bright light or light reflecting objects. When this camera is not in use, put the supplied protective cap on the lens mount. Handle this camera with the maximum care. Operate this camera only from the type of power source indicated on the camera. Remove power from the camera when changing switch settings.

2. Typical Sensor Characteristics

The image sensors used in the LT-400CL are CMOS type and have been chosen for their superior performance. There may, however, always be artifacts visible in the scanned image originating from pixel imperfections in the camera. The Pixel Gain and Pixel Black correction functions will allow the user to compensate for such artifacts, producing an essentially “flat” image.

3. Caution when mounting a lens on the camera

When mounting a lens on the camera dust particles in the air may settle on the surface of the lens or the image sensor of the camera. It is therefore important to keep the protective caps on the lens and on the camera until the lens is mounted. Point the lens mount of the camera downward to prevent dust particles from landing on the optical surfaces of the camera. This work should be done in a dust free environment. Do not touch any of the optical surfaces of the camera or the lens.

4. Caution when mounting the camera

When you mount the camera on your system, please make sure to use screws of the recommended length described in the following drawing. Longer screws may cause serious damage to the PCB inside the camera.

Camera chassis

Fixing plate

Mounting the camera to fixing plate

5.0mm　±　0.2mm

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60

If you mount the tripod mounting plate, please use the provided screws.

5. Exportation

When exporting this product, please follow the export regulation of your own country.

6. References

1. This manual for LT-400CL can be downloaded from www.jai.com

2. Datasheet for LT-400CL can be downloaded from www.jai.com

3. The camera control software can be downloaded from www.jai.com

Camera chassis

Tripod mount

5.0mm　±　0.2mm

Attaching the tripod mount

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61

Change History

Month/Year

Revision

Changes

June 2010

1.0

New release

May 2011

1.1

Correct R and B gain range for the master gain mode

Replace the drawing for each operation mode

June 2011

1.2

Sensitivity (Standard) spec is reviewed. As the sensitivity of The sensor is described, the standard sensitivity is changed to with lens instead of “ON SENSOR”.

Nov. 2011

1.3

Correct the drawing for chapter 6.3.11 and 6.3.12.

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62

User's Record

Camera type: LT-400CL

Revision: ……………..

Serial No. ……………..

Firmware version. ……………..

For camera revision history, please contact your local JAI distributor.

User's Mode Settings.

User's Modifications.

Company and product names mentioned in this manual are trademarks or registered trademarks of their respective owners.

JAI A-S cannot be held responsible for any technical or typographical errors and reserves the right to make changes to products and

documentation without prior notification.

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Asia Pacific

Americas

Phone +45 4457 8888

Fax +45 4491 3252

Phone +81 45 440 0154

Fax +81 45 440 0166

Phone (toll-free) +1 800 445 5444

Phone +1 408 383 0300

Visit our web site at www.jai.com

JAI LT-400CL User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual