JAI CV-M50 User Manual

Industrial Monochrome CCD Camera

CV-M50

Operation Manual

(Rev.F)

CV -M50

DECLARATION OF CONFORMITY

AS DEFINED BY THE COUNCIL DIRECTIVE

89/336/EEC

EMC (ELECTROMAGNETIC COMPATIBILITY)

WE HEREWITH DECLARE THAT THIS PRODUCT

COMPLIES WITH THE FOLLO WING PROVISIONS APPLYING T O IT .

EN-50081-1

EN-50082-1

CV -M50

Table of Contents

Table of Contents ....................................................................................................................................... 2

1. General................................................................................................................................................ 3

2. Standard Composition......................................................................................................................... 3

3. Main Features ..................................................................................................................................... 3

4. Locations and Functions ..................................................................................................................... 4

5. Pin Assignment ................................................................................................................................... 5

5.1. 12-pin Multi-connector (DC-IN/SYNC.) ...................................................................................... 5

5.2. 6-pin Multi-connector (TRIGGER) .............................................................................................. 5

6. Functions and Operations ................................................................................................................... 6

6.1. Input/Output of HD/VD Signal................................................................................................... 6

6.1.1. Input of External HD/VD Signal ..................................................................................... 6

6.1.2. Output of Internal HD/VD Signal ................................................................................... 6

6.2. Normal Shutter Mode ................................................................................................................ 6

6.3. External Trigger Mode ............................................................................................................... 6

6.3.1. Edge Pre-select Mode ................................................................................................... 6

6.3.2. Pulse Width Control Mode............................................................................................. 8

6.3.3. Start/Stop Trigger Mode ..............................................................................................10

6.3.4. Long Time Exposure Mode ...........................................................................................12

7. Mode Setting ......................................................................................................................................14

7.1.1. SW1 Switch on the Rear Panel ......................................................................................14

7.1.2. Table for SW 1 Setting...................................................................................................14

7.1.3. Table for Shutter Time ..................................................................................................14

7.1.4. Ext. Trigger Shutter Mode.............................................................................................15

7.1.5. Trigger Select ...............................................................................................................15

7.1.6. CD Accumulation ..........................................................................................................15

7.1.7. Scanning System..........................................................................................................15

7.1.8. Gamma Correction ....................................................................................................... 15

7.1.9. Gain Control .................................................................................................................15

7.2. SW2 on PK8057 Board ..............................................................................................................15

7.3. Jumper Settings ........................................................................................................................16

7.3.1. Jumper on PK8054 Board..............................................................................................16

7.3.2. Jumper on PK8057 Board..............................................................................................16

7.3.3. Pixel Clock Output ........................................................................................................16

7.4. Location of SW2 and Jumpers ...................................................................................................17

7.4.1. Board PK8054 Side B....................................................................................................17

7.4.2. Board PK8057 Side A.................................................................................................... 17

8. Adjustment of Video Signal Output Level ..........................................................................................18

9. External Appearance..........................................................................................................................19

10. Specifications.................................................................................................................................... 20

10.1. Spectral Sensitivity .................................................................................................................. 20

11. Appendix ............................................................................................................................................21

11.1. Precautions .............................................................................................................................. 21

11.2. Typical CCD Characteristics ......................................................................................................21

12. User’s Record .................................................................................................................................... 22

- 2 -

CV -M50

1. General

The CV-M50 is a monochrome 1/2" CCD camera designed for automated imaging applications featuring
high performance and unique functions within a uniform and compact housing.

The high-speed shutter function and asynchronous random trigger function allow the camera to capture
high quality images of fast moving objects. It is suitable for industrial applications such as on-line
inspection and measurements.

In addition to conventional random trigger modes, the newly added pulse width control shutter mode
makes it possible control the accumulation time by the trigger pulse width.

2. Standard Composition

The standard camera composition consists of the camera main body, tripod mount plate and operation
manual.

3. Main Features

• 1/2" interline transfer CCD sensor with 768 (h) x 494 (v) pixels for EIA and 752 (h) x 582 (v) pixels for
CCIR.

• High horizontal resolution. 570 TV lines for EIA, 560 TV lines for CCIR.

• Excellent S/N. Better than 56dB.

• High sensitivity. Minimum 0.05 lx illumination on CCD sensor.

• Improved smear performance and higher dynamic range.

• Random trigger modes with edge pre-select shutter, start/stop shutter and pulse width control
shutter.

• Random trigger shutter up to 1/10,000 sec.

• Long-time exposure mode from a single field to several seconds.

• WEN -, EEN - and pixel clock output to support further advanced image capturing.

• Internal or external HD/VD synchronization.

• Easy shutter and functions mode setting from rear panel.

• Lens mount for C-mount lens.

• The camera features a robust package, lightweight and compact size.

- 3 -

4. Locations and Functions

CV -M50

1 1/2" interline transfer CCD sensor.
2 Lens mount of C-mount type. *1)
3 BNC connector for video output.
4 Switch block SW1 for shutter speed and function modes setting.
5 6-pin multi connector for WEN and EEN output external trigger input.
6 12-pin multi connector for +12V DC power, video output and HD/VD input/output.
7 GAIN potentiometer for manual gain adjustment.
8 Screw holes for Tripod mount plate.
9 Tripod mount plate to place the camera on tripod.

Note: *1) Rear protrusion on C-mount lens must be less than 10.0 mm (0.4 inches approx.).

When IR-cut filter is used, it must be less than 7.0 mm (0.28 inches approx.).
The IR cut filter is placed in the C-mount thread.

The C-mount 25 mm IR cut filter must be ordered separately.

- 4 -

CV -M50

5. Pin Assignment

5.1. 12-pin Multi-connector (DC-IN/SYNC.)

Type: HR10A-10R-12PB-01 (Hirose) male
Seen from rear.

Pin no. Signal Remarks

1
2
3
4
5
6
7
8
9

10

11

12

GND

+12 V DC input

GND

Video output Parallel with the BNC video output. Avoid double termination.

GND
HD input/output HD in as factory setting. *1)
VD input/output VD in as factory setting. *1) *2)

GND

NC NC as factory setting. Pixel clock output. *1)

GND

+12 V DC input

GND

Notes:
*1) Signals on pin no. 6, 7 and 9 can be changed by jumper setting.

See “7.3. Jumper Settings” for more information.

*2) In Edge Pre-select and Pulse Width Control mode do not input ext. VD signal.

5.2. 6-pin Multi-connector (TRIGGER)

Type: HR10A-7R-6PB (Hirose) male
Seen from rear.

Pin no. Signal Remarks

1
2
3
4
5
6

NC

EEN output * Note

GND

NC

Ext. Trig input * Note

WEN output * Note

* Notes:

The functions available on the 6-pin multi-connector are not effective in

long time exposure mode.

- 5 -

CV -M50

6. Functions and Operations

6.1. Input/Output of HD/VD Signal

6.1.1. Input of External HD/VD Signal

As factory setting the camera can be synchronized by external HD/VD signals. The signal level must be

4.0V p-p +/- 2.0V at the input with the 75 Ohm termination ON. To change to non-terminated input, see
instructions in “7. Mode Setting”.
If no ext. HD is connected, the camera will switch to the internal X-tal controlled HD.
If no ext. VD is connected, the camera will continue with its internal VD.

6.1.2. Output of Internal HD/VD Signal

The internal HD/VD output is 4.0V p-p from a 75 Ohm source.
To select this mode, see instructions in “7. Mode Setting”.

6.2. Normal Shutter Mode

When trigger select SW1-4 is OFF, the camera is in normal mode. The SW1-1, SW1-2 and SW1-3 are for
selecting the shutter speed. The range is from OFF to 1/10,000 second in 8 steps. The camera is running
continuously with an exposure as the selected shutter time.
The shutter time setting is shown in “7.1.3. Table for Shutter Time”.

6.3. External Trigger Mode

External trigger mode of CV-M50 allows 4 different driving modes, as follow.
1 Edge pre-select mode. (Asynchronous reset and exposure start by an ext. trigger)
2 Pulse width control mode. (Exposure control by the low period of the ext. trigger)
3 Start/Stop trigger mode. (Exposure start by the ext. trigger and end by the ext. VD signal)
4 Long time exposure mode. (Exposure control by the interval of the ext. VD signal)

The trigger input is AC coupled, so there is a maximum pulse width for the trigger pulse about 60 msec.
The signal level must be 4.0V p-p +/- 2.0V on the input with the 75 Ohm termination ON. To change to
non-terminated input, see instructions in “7. Mode Setting”.
The following describes the details of each trigger mode.

6.3.1. Edge Pre-select Mode

The edge pre-select mode operation will only work in non-interlaced and field accumulation mode. The
CV-M50 starts the exposure (= accumulation of photoelectric charge) at the first HD pulse after the
falling edge of the ext. trigger pulse. The exposure ends after the time set by the 3 shutter switches
SW1-1 to SW1-3. The range is 8 steps from OFF (1/60 or 1/50) to 1/10,000 second.
In this mode, the EEN (Exposure ENable) pulse and WEN (Write ENable) pulses are generated and
output from the camera. The EEN pulse indicates the exposure time and can be used to control the
illumination such as strobe light. The EEN pulse is output from pin 2 of the 6-pin multi connector. The
signal level is 4.0 Vp-p from a 75 Ohm source.
The WEN pulse indicates the time period of the effective video signal output, and is useful for the timing
and interfacing of external devices such as frame grabbers. The WEN pulse is output from pin 6 of the 6­pin multi connector. The signal level is 4.0 Vp-p from a 75 Ohm source.
The video must be read out before a new trigger can be applied. The interval between trigger pulses
must be longer than the time for 1 field + the shutter time. It is the limit for the field rate.

- 6 -

CV -M50

To use this mode
Set: SW1-4 to ON for ext. trigger shutter

SW1-5 to OFF for field accumulation
SW1-6 to ON for non-interlaced
SW1-1,2 and 3 to shutter speed

Input: Ext. trigger to pin 5 on 6 pin multi connector.

Ext. HD to pin 6 on 12-pin multi connector. (If used).
75 Ohm termination is done with SW2-1 (HD) and SW2-2 (ext.trigger) on PK8057 board.

Refer to Timing Chart and Cautions below.
Detailed switch and jumper setting is described in “7. Mode Setting”.
For connections see “5. Pin Assignment”.

Cautions in the Edge Pre-select Mode.

1. Edge pre-select mode is effective only in non-interlaced, field accumulation mode.

2. The exposure start may delay up to 1H max., when the falling edge of ext. trigger pulse is not
synchronized with the falling edge of ext. HD signal. To avoid this 1H delay and jitter, the falling edge
of the trigger pulse should be synchronized with the HD pulse as shown below. It can be the ext. HD
input or the Internal HD output.

3. The ext. trigger input is 75 Ohm terminated as factory setting. (R127 short and SW2-2 ON). The
voltage level of the ext. trigger has to be 4.0 Vp-p ± 2.0 V. The duration should be more than 1 H
negative going. >64 µsec. and < 60 msec. The input is AC coupled.

4. If the ext. trigger input and ext. HD input are from a source with TTL level, set SW2-1 and SW2-2 OFF
for non-terminated. SW2-1 for HD signal, SW2-2 for ext. trigger pulse. See “7.2 SW2 on PK8057
Board”.

CV-M50 EIA (Non-interlaced / Field accumulation mode)

Edge pre-select mode (for non-interlace only

TRIG

EXT HD

INT HD

INT VD

EEN

WEN

CCD out

Video out

1H more

1.5H 9H

Exposure time Exposure time

0.5H

12.5H

10.5H

)

2H 9H

Effective pixels

No.10 to 251

20H 242H 20H

Effective videoBlanking Blanking

EIA : 1H = 63.5µs

TRIG in1H

9H1.5H1H9H

0.5H

- 7 -

CV -M50

CV-M50 CCIR (Non-interlaced / Field accumulation mode)

Edge pre-select mode (for non-interlace only

TRIG

EXT HD

INT HD

INT VD

EEN

WEN

CCD out

Video out

1H more

1.5H 7.5H

Exposure time Exposure time

0.5H

16.5H

9H 10H 14H

)

7.5H

7.5H

Effective pixels

No.10 to 251

25H 287H 25H

Effective videoBlanking Blanking

CCIR : 1H = 64µs

TRIG in1H

7.5H1.5H6.5H

0.5H

6.3.2. Pulse Width Control Mode

The pulse width control mode will only work in non-interlaced field accumulation mode.
The exposure is controlled by the low period of the ext. trigger pulse. The CV-M50 starts the exposure at
the first HD pulse after the falling edge of the ext. trigger pulse. The exposure ends at the first HD pulse
after the rising edge of the ext. trigger. The Shutter can be controlled to be within the range from >1H
(>64 usec.) to <60 msec. The AC coupling causes the upper limit.
EEN (Exposure ENable) pulse and WEN (Write ENable) pulses are generated and output from the
camera.

The EEN pulse indicates the exposure time. The EEN pulse is output from pin 2 of the 6-pin multi
connector. The signal level is 4.0 Vp-p from a 75 Ohm source.
The WEN pulse indicates the time period of the effective video signal output and is useful for the timing
and interfacing of external devices such as frame grabbers. The WEN pulse is output from pin 6 of the 6­pin multi connector. The signal level is 4.0 Vp-p from a 75 Ohm source
The video must be read out before a new trigger can be applied. The interval between trigger pulses
must be longer than the time for 1 field + the shutter time. It is the limit for the field rate.

To use this mode
Set: SW1-1, 2 and 3 to OFF

SW1-4 to ON for ext. trigger shutter
SW1-5 to OFF for field accumulation
SW1-6 to ON for non-interlaced
JP12 on PK8057 to OPEN

Input: Ext. trigger to pin 5 on 6-pin multi connector.

Ext. HD to pin 6 on 12-pin multi connector. (If used).
75 Ohm termination is done with SW2-1 (HD) and SW2-2 (ext.trigger) on PK8057 board.

Refer to Timing Chart and Cautions on next page.
Detailed switch and jumper setting is described in “7. Mode Setting”.
For connections see “5. Pin Assignment”.

- 8 -

CV -M50

Cautions in the Pulse Width Control Mode.

1. Pulse width control mode is effective only in non-interlaced field accumulation mode.

2. The exposure start may be delayed up to 1H max., when the falling edge of ext. trigger pulse is not
synchronized with the falling edge of ext. HD signal. To avoid this 1H jitter and delay, the falling edge
of the ext. trigger pulse should be synchronized within 4.4 usec. to the HD pulse. It can be the ext. HD
in or the Internal HD out.
See cautions in Edge Pre-select Mode page 7.

3. The ext. trigger input is 75 Ohm terminated as factory setting. (R127 short and SW2-2 on). The
voltage level of the ext. trigger has to be 4.0 Vp-p ± 2.0 V. The duration should be more than 1 H
negative going. >64 µsec. and < 60 msec. The input is AC coupled.

4. If the ext. trigger input and ext. HD input are from a source with TTL level, set SW2-1 and SW2-2 OFF
for non-terminated. SW2-1 for HD signal, SW2-2 for ext. trigger pulse. See “7.2 SW2 on PK8057
Board”.

CV-M50 EIA (Non-interlaced / Field accumulation mode)

Pulse width control mode (for non-interlace only

TRIG

EXT HD

1H more

)

EIA : 1H = 63.5µs

TRIG in1H

INT HD

INT VD

EEN

Exposure time Exposure time

WEN

CCD out

Video out

1.5H 9H

0.5H

12.5H

2H 9H 10H

Effective pixels

No.10 to 251

20H 242H 20H

Effective videoBlanking Blanking

CV-M50 CCIR (Non-interlaced / Field accumulation mode)

Pulse width control mode (for non-interlace only

TRIG

EXT HD

INT HD

INT VD

EEN

WEN

CCD out

Video out

1H more

1.5H 7.5H

Exposure time Exposure time

0.5H

16.5H

9H 10H 14H

)

7.5H

7.5H

Effective pixels

No.10 to 251

25H 287H 25H

Effective videoBlanking Blanking

9H1.5H1H

0.5H

CCIR : 1H = 64µs

TRIG in1H

7.5H1.5H6.5H

0.5H

- 9 -

CV -M50

6.3.3. Start/Stop Trigger Mode

The Start /Stop trigger will work in 3 modes:

1. Interlaced with frame accumulation.

2. Interlaced with field accumulation.

3. Non-interlaced with field accumulation.

The exposure time is controlled by the interval between the ext. trigger pulse and the ext. VD signal. The
exposure starts at the first HD pulse after the falling edge of the ext. trigger, and stops at the rising edge
of the VD pulse. The range can be within 1/77 to 1/10,000 sec.
The Start/Stop mode is a continuous mode where the VD signal must be given continuously. It is not
possible to input ext. VD randomly.
For the interlaced modes 2 ext. trigger pulses should be applied for each frame. It is one for each field.
In this way it is possible to have different exposure time for the 2 fields within an interlaced frame.
The difference between interlaced frame accumulation or field accumulation can be explained as follow.
Both modes have 2 fields output in an interlaced frame. With frame accumulation the contents in the
ODD and EVEN sync. fields will come from sensing field 1 and 2 on the CCD sensor. With field
accumulation both ODD and EVEN sync. field will contain the signal from sensing field 1 and 2 added
together.
Non-interlaced with field accumulation needs only 1 trigger pulse for each field.

To use this mode
Set: SW1-1,2 and 3 to ON for 1/10,000 sec.

SW1-4 to OFF for normal shutter.
SW1-5 to ON for frame accumulation or OFF for field accumulation.
SW1-6 to OFF for 2:1 interlaced or ON for non-interlaced.
Jumper JP R127 on the PK8054 board OPEN
Jumper JP8, JP9, JP10 on PK8057 to SHORT
Jumper JP7 on PK8057 to OPEN

Input: Ext. trigger to pin 5 on 6 pin multi connector. (Can not be 75 Ohm terminated.)

Ext. VD to pin 7 on 12 pin multi connector.
Ext. HD to pin 6 on 12 pin multi connector. (If used).
HD/VD 75 Ohm termination is done with SW2-1 and SW2-2 on PK8057 board.

Refer to Timing Chart and Cautions on next page.
Detailed switch and jumper setting is described in “7. Mode Setting”.
For connections see “5. Pin Assignment”.

- 10 -

CV -M50

Cautions in the Start/Stop Trigger Mode.

1. The input of ext. VD signal must be given continuously to synchronize with int. VD signal. It is not
possible to input ext. VD signal randomly.

2. The exposure start may delay up to 1H max., when the falling edge of ext. trigger pulse is not
synchronized with the falling edge of ext. HD signal. To avoid this 1H jitter and delay, the falling edge
of the ext. trigger pulse should be synchronized within 4.4 usec. to the HD pulse. It can be the ext. HD
input or the internal HD output.
Shown under cautions in Edge Pre-select Mode page 7.

3. In this mode, the ext. trigger has to be TTL level (2.0 to 5.0 V). It cannot be 75 Ohm terminated. The
duration should be more than 1 H negative going. >64 µsec. and < 1 msec. The input is AC coupled.

4. If the ext. VD input and ext. HD input are from a source with TTL level, set SW2-1 and SW2-2 on
PK8057 board OFF for non-terminated. SW2-1 for ext. HD signal, SW2-2 for ext. VD signal. See “7.2
SW2 on PK8057 Board”.

5. Each scanning mode requires the following number of external trigger pulses:

- 2:1 interlaced: 2 external trigger pulses per frame

- Non-interlaced: 1 external trigger pulse per field

a) Interlaced mode (Frame accumulation mode)

Ext.Trg.
Ext. VD
Exposure

time

Video

1 2

t1

t1

b) 2:1 Interlaced mode (Field accumulation mode)

Ext.Trg.

Ext. VD
Exposure

time

Video

1 2

c) Non-interlace moded (Field accumulation mode)

Ext.Trg.
Ext. VD

Exposure
time

Video

1

- 11 -

CV -M50

6.3.4. Long Time Exposure Mode

The Long time exposure will work in 3 modes:

1. Interlaced with field accumulation.

2. Interlaced with frame accumulation.

3. Non-interlaced with field accumulation.

The exposure time is the interval between 2 ext. VD pulses sent to the camera VD input. Each ext. VD
pulse will reset and restart the internal VD in the camera as for ext. HD/VD input. So the camera is
synchronized to the external HD/VD supply after each VD input.
An exposure starts after input of an external VD pulse, and ends after the next input of ext. VD, which
again starts a new exposure.
The long time exposure is a continuous process where each external VD will synchronize the camera,
stop an exposure, start a new exposure and read out the previous accumulated signal as interlaced or
non-interlaced fields.
The exposure control can be done by feeding every Nth VD pulse from the external HD/VD supply to the
camera. N is the wanted exposure time in number of fields. This is typically done in the frame grabber
PC.
The range for long time exposure is from 1 V (a single field) to ∞. However the dark current signal will
increase by longer time, so >2 seconds are not recommended at normal ambient temperature.

To use this mode:
Set: SW1-1, 2 and 3 to OFF

SW1-4 to OFF for normal shutter.
SW1-5 to ON for frame accumulation or OFF for field accumulation.
SW1-6 to OFF for 2:1 interlaced or ON for non-interlaced.
Jumper JP6 on PK8057 to CLOSE

Input: Ext. VD pulses with the exposure interval to pin 7 on 12 pin multi connector.

Ext. HD to pin 6 on 12 pin multi connector.
75 Ohm termination is done with SW2-1 and SW2-2 on PK8057 board.

The timing for the external VD interval has to be as follow. (V is the time for a single field)
Interlaced with field accumulation. 1 V or more
Interlaced with frame accumulation. 2 V or integral number of 2V
Non-interlaced with field accumulation. 2 V or more

Note: The external H D/VD sync. generator, which supply the ext. VD an HD signals should follow the

scanning standard for the camera setting.

EIA CCIR
Interlaced and field accumulation. 1 V = 262.5 H 1 V = 312.5 H
Interlaced and frame accumulation. 2 V = 525.0 H 2 V = 625.0 H
Non-interlaced and field accumulation. 2 V = 524.0 H 2 V = 624.0 H

Refer to Timing Chart and Cautions on next page.
Detailed switch and jumper setting is described in “7. Mode Setting”.
For connections see 5. “Pin Assignment”.

- 12 -

CV -M50

Cautions in the Long Time Exposure Mode.

1. Theoretical exposure time is as follows. EIA: 1/30 sec. to ∞. CCIR: 1/25 sec. to ∞.

2. It is recommended not to use exposure >2 sec. since visible dark-current noise may occur.

3. Ext. HD signal (4.0 Vp-p ± 2.0V at 75 Ohm terminated) has to be input continuously
The falling edge of Int. HD signal and Ext. VD signal are phase-synchronized.

4. Timing of ext. VD signal in each accumulation mode has to be set, as described before.

a) 2:1 Interlaced mode (Field accumulation mode)

b) 2:1 Interlaced mode (Frame accumulation mode)

c) Non interlaced mode (Field accumulation mode)

- 13 -

CV -M50

7. Mode Setting

Caution on Mode Setting.

Before making any mode or jumper setting turn the power OFF.

7.1.1. SW1 Switch on the Rear Panel

Factory settings for SW1 are with all 8 switches in OFF position.

OFF=<
ON

SHUTTER

TRIGGER
ACCUMM

INTERLACE

GAMMA

GAIN

OFF

SW1

ON

1
2

3
4

5
6

7
8

1/50 off

1/100

1/250

<

<

<

<

<

>

<

>

<

Normal

Field

Interlaced

1.0

Manual

1/500

<

>

>

<

>

<
<>

<>
<>

<>
<>

=

>

1/1000

1/2000

1/4500

1/10,000

>

>

>

<

>

>

>

>

<

External trigger
Frame
Non-interlaced

0.45
Auto

Seconds

7.1.2. Table for SW 1 Setting

Switch no. Switch function

1
2
3
4
5
6

7
8

Shutter data MSB

Shutter data

Shutter data LSB

Trigger select Normal Ext. trigger

CCD accumulation Field accumulation Frame accumulation

Scanning system 2:1 interlaced Non-interlaced

Gamma correction Gamma = 1.0 Gamma = 0.45

Gain Manual gain AGC on

7.1.3. Table for Shutter Time

SW1-1

MSB

SW1-2 SW1-3

LSB

OFF OFF OFF
OFF OFF ON
OFF ON OFF
OFF ON ON

ON OFF OFF
ON OFF ON
ON ON OFF
ON ON ON

Mode setting

OFF ON

For shutter speed select.

Refer to shutter table 7.1.3.

Shutter speed (sec.)

Normal shutter Ext. trigger shutter

Off 1/60 (1/50)

1/100 1/125

1/250
1/500

1/1000
1/2000
1/4500

1/10,000

Caution on Shutter.

The image can flicker when the illumination is AC powered.
Highlighted parts of the image will show increasing smear at a shorter shutter time.

- 14 -

CV -M50

7.1.4. Ext. Trigger Shutter Mode

When trigger select SW1-4 is ON. The camera is in ext. trigger shutter mode. The SW1-1, SW1-2 and SW1­3 are for selecting the shutter speed. The range is from OFF to 1/10,000 second in 8 steps. For each
external trigger pulse, the camera will make an exposure with the selected shutter speed.
The shutter time setting is shown in “7.1.3. Table for Shutter Time”.

7.1.5. Trigger Select

SW1-4 is will select the camera operation mode.
OFF is normal mode, where the camera is running continuously.
ON is the ext. trigger shutter mode. Here the external trigger pulse will start the exposure.

7.1.6. CCD Accumulation

SW1-5 will select the CCD accumulation mode.
OFF is field accumulation. It is used for moving objects.
ON is frame accumulation. It is for still objects.

7.1.7. Scanning System

SW1-6 will select the scanning system.
OFF is 2.1 interlaced. It will follow the EIA or CCIR standard for interlaced scanning.
ON is non-interlaced.
In EIA the non-interlaced output is continuous ODD field. In CCIR the non-interlaced output is continuous
EVEN field.
If the camera is ext. HD/VD synchronized with a non-interlaced sync, SW1-6 be in ON position.

7.1.8. Gamma Correction

SW1-7 will select the gamma correction.
OFF is gamma 1.0. It is linear. Recommended for machine vision and image processing.
ON is gamma 0.45. It is non-linear.

7.1.9. Gain Control

SW1-8 is for gain select.
OFF is manual gain. Here the gain can be controlled by the GAIN potmeter on the rear panel.
ON is the AGC mode. Here the gain is adjusted automatically. The AGC level can be adjusted by VR3 on
PK8056 board. See “8. Adjustment of Video Signal Output Level”.

7.2. SW2 on PK8057 Board

This switch is to select 75 Ohm termination or TTL for ext. HD and ext. VD.
SW2-1 is for HD signal.

SW2-2 is for VD signal, or for ext. trigger in.
ON is 75 Ohm terminated. (Factory setting).
OFF is TTL level.

HD

ON

1

OFF

SW2

VD

2

- 15 -

CV -M50

7.3. Jumper Settings

Caution on Jumper Setting.

Before making any mode or jumper setting turn the power OFF.
Jumpers for mode setting are found on the boards PK8054 & PK8057.
The following modes are available with jumper setting:

Input/Output Mode of HD/VD signal. (HD/VD input is factory setting)
Edge Pre-select Mode. (Factory setting)
Pulse Width Control Mode
Start/Stop Trigger Mode
Long Time Exposure Mode

Set the jumpers according to the list below in 7.3.1. and 7.3.2.
The jumper positions are shown in “7.4.1. Board 8054 Side B” and “7.4.2. Board 8057 Side A”.
Switch SW2 on PK8057 is shown in “7.2. SW2 on PK8057 Board”.

7.3.1. Jumper on PK8054 Board

HD/VD in/out External trigger modes

Jumper

R127

Ext.

HD/VD

input *)

Short

Int.

HD/VD

output

Short Short Short Open Short Factory set SHORT

Edge pre-

select

Pulse

width

control

Start/

stop

trigger

Long time

expose

Remarks

*) Factory Setting

7.3.2. Jumper on PK8057 Board

HD/VD in/out External trigger modes

Jumper

JP1

JP2

JP3

JP4

JP5

JP6

JP7
JP8
JP9

JP10

JP11

JP12
SW2-1
SW2-2

Ext.

HD/VD

input *)

Short
Open
Short
Open
Short
Open
Short
Open
Open
Open
Open
Short

ON
ON

Int.
HD/VD
output

Open Short Short Short Short HD input /output. Factory set input
Short Open Open Open Open
Open Short Short Short Short VD input /output. Factory set input
Short Open Open Open Open
Short Short Short Short Short
Open Open Open Open Short Long time integration
Short Short Short Open Short
Open Open Open Short Open
Open Open Open Short Open
Open Open Open Short Open

- - - - - Pixel clock out. Factory set OPEN

Short Short Open Short Short Pulse width

- ON ON ON ON HD in 75 Ohm term. Factory set ON

- ON ON ON ON VD in 75 Ohm term. Factory set ON

*) Factory Setting

Edge pre-

select

Pulse
width

control

Start/

stop

trigger

Long time

expose

Remarks

HD input /output. Factory set input

VD input /output. Factory set input

7.3.3. Pixel Clock Output

To use pixel clock output (TTL level: 4.0 V), make the jumper JP11 on PK8057 board shorted-circuited. The
jumper position is shown in “7.4.1. Board PK8057 Side A”.
Pixel clock pulse will be output from pin no.9 of 12-pin multi-connector.

Caution for Pixel Clock Output.

When the pixel clock is enabled, it may cause interference with external equipment if it not properly
shielded.

- 16 -

CV -M50

7.4. Location of SW2 and Jumpers

Jumpers are shorted with a 0 Ohm resistor or by a soldering between the 2 points. To remove the solder
tin from a jumper position, use a special tin remover such as de-soldering wick.

7.4.1. Board PK8054 Side B

7.4.2. Board PK8057 Side A

R127

JP10 JP2 JP1 SW2 JP6 JP7

JP9 JP12 JP4 JP11 JP3 JP5 JP8

- 17 -

CV -M50

8. Adjustment of Video Signal Output Level

When an alignment of a video output signal is required, remove the camera housing and adjust
potentiometers VR3, VR4 and VR5 on the PK8056 board while measuring their levels at the video output
connector.
This adjustment should only be done in a setup with a standard TV test chart and controlled
illumination.

VR3: To adjust the gain level of AGC. (Factory setting: 700 mVp-p ± 30 mV)
VR4: To adjust the white level. (Factory setting: 800 mVp-p ± 20 mV)
VR5: To adjust the black level. (Factory setting: 20 mVp-p ± 5 mV)

CAUTION.

Do not touch these potentiometers unless you are familiar with camera adjustments.
Location of VR3 to VR5 on PK8056 board is as follow.

VR4 VR3 VR5

- 18 -

9. External Appearance

CV -M50

Unit : mm (inches)

40

(1.57)

50

(1.97)

C-MOUNT

5

(0.2)

26

(1.02)

20

(0.79)

550

(0.2)

26

(1.02)

(1.97)

4-M3

(1.97)

50

80

(3.15)

12.7
(0.5)

VIDEO

SW1

GAIN

TRIGGER

DC IN
/SYNC

- 19 -

10. Specifications

CV -M50

Scanning system CCIR 625 lines EIA 525 lines

CCD sensor Monochrome 1/2" Hyper HAD IT CCD
Sensing area 6.6 mm (h) x 4. 8 mm (v)
Effective pixels 752 (h) x 582 (v) 768 (h) x 494 (v)
Elements in video output 737 (h) x 575 (v) 758 (h) x 486 (v)
Cell size 8.6 (h) x 8.3 (v) µm 8.4 (h) x 9.8 (v) µm
Resolution (horizontal) 560 TV lines 570 TV lines
Resolution (vertical) 575 TV lines 485 TV lines
Sensitivity on sensor 0.05 lx
S/N ratio >56 dB (AGC off, Gamma 1)
Video output Composite VS signal 1.0 Vpp, 75 Ohm
Gamma 0.45 – 1.0
Gain Manual – Automatic. 0 to +15 dB by potentiometer or AGC
Scanning 2:1 interlace – non-interlace
Accumulation Field – frame
Synchronization Int. X-tal. Ext HD/VD or random trigger
HD sync. input/output 4V, 75 Ohm*
VD sync. input/output 4V, 75 Ohm*
Trigger input 4V, 75 Ohm*
Trigger input duration >HD interval
WEN output (write enable) 4V , 7 5 Oh m
EEN output (exposure enable) 4V, 75 Ohm
Pixel clock output (optional) 4V, 75 Ohm sine
Normal shutter Off, 1/100, 1/250, 1/500, 1/1000, 1/2000, 1/4500, 1/10,000 sec.
Edge pre-select shutter 1/60, 1/100, 1/250, 1/500, 1/1000, 1/2000, 1/4500, 1/10,000 sec.
Pulse width controlled shutter >1 H (64 usec.) to <60 msec.
Start/stop trigger shutter 1/77 sec to 1/10,000 sec.

Long time exposure 1 field to ∞. Duration between ext. VD pulses
Operating temperature -5°C to +45°C
Humidity 20 – 80% non-condensing
Storage temp./humidity -25°C to 60°C/20 - 90%
Power 12V DC ±10%. 2.5W
Lens mount C-mount
Dimensions 40 x 50 x 80 mm (HxWxD)
Mass 230 g

25 frames/sec. 30 frames/sec.

* HD sync., VD sync./(Trigger) input or output by internal jumpers.

Factory setting: HD/VD input. Inputs TTL or 75 Ohm terminated by
internal jumpers. Factory setting: 75 Ohm terminated.

Note: Above specifications are subject to change without notice.

10.1. Spectral Sensitivity

1.0

0.8

0.6

0.4

Relative response

0.2

0.0
400 500 600 700 800 900

Wave length (nm)

1000

- 20 -

CV -M50

11. Appendix

11.1. 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.

Even when this camera is not in use, put the supplied lens 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.
Power off the camera during any modification such as changes of jumper and switch setting.

11.2. Typical CCD Characteristics

The following effects may be observed on the video monitor screen. They do not indicate any fault of the
CCD camera, but do associate with typical CCD characteristics.

VV

. Smear. Smear

V

. Smear

VV

. Smear. Smear

Due to an excessive bright object such as electric lighting, sun or strong reflection, vertical smear may
be visible on the video monitor screen. This phenomenon is related to the characteristics of the
Interline Transfer System employed in the CCD.

VV

. A. A

liasingliasing

V

. A

liasing

VV

. A. A

liasingliasing

When the CCD camera captures stripes, straight lines or similar sharp patterns, jagged image on the
monitor may appear.

BlemishesBlemishes

Blemishes

BlemishesBlemishes

Some pixel defects can occur, but this does not have en effect on the practical operation.

Patterned NoisePatterned Noise

Patterned Noise

Patterned NoisePatterned Noise

When the CCD camera captures a dark object at high temperature or is used for long time integration,
fixed pattern noise (shown as white dots) may appear on the video monitor screen.

- 21 -

12. User’s Record

Camera type: CV-M50

Scanning system: EIA/CCIR

Revision: (Revision F)

Serial No. .................

Users Mode Settings

Users Modifications

CV -M50

This manual can be downloaded from: www.jai.com

- 22 -

2700-11083E F3 1200

JAI A·S, Denmark

Produktionsvej 1, 2600 Glostrup
Copenhagen, Denmark
Phone [phone]
Fax [phone]
www.jai.com

JAI Corporation, Japan

German Industry Center
1-18-2 Hakusan, Midori-ku
Yokohama,
Kanagawa 226-0006, Japan
Phone [phone]
Fax [phone]
www.jai-corp.co.jp

JAI America, Inc., USA

Suite 450
23046 Avenida de la Carlota
Laguna Hills, CA 92653
USA
Phone [phone]
Fax [phone]
www.jai.com