Atmel CAMELIACOL 4M User Manual

Main Features
High Sensitivity Full Frame CCD Sensor
2048 x 2048 Resolution with 14 µm Square Pixels
Bayer Color Mosaic
12-bit Dynamic Range
Very Low Noise: 66 dB SNR
Binning Modes
High Data Rate: 20 Mpixels/s
Flexible and Easy to Oper ate vi a R S -23 2 Co ntrol
– Trigger Mode: Free Run or External Trigger Modes – Binning 2 x 2 and 4 x 4 – Exposure Time – Gain: x1 to x8
Single Power Supply: 24VDC
High Reliability – CE Compliant
F (Nikon) Mount Adapter (Lens Not Supplied)
Product Description
This camera is designed to meet high performance and quality requirements while providing ease of use.
Atmel manages the entire manufacturing process, from the sensor to the camera. The result is a camera that operates in 12 bit s, with dedicated electronics that provide an excellent signal to noise ratio.
The programmable settings let the user work at different integration times and gains. The external trigger allows synchronization of the camera on an external event while the hardware white balance adjustment avoids subsequent software processing.
CAMELIACOL 4M
Full Frame Digital
Camera
Applications
The performance and reliability of this camera make it well suited for the most demanding applications such as film and document scanning, semiconductor and PCB inspection, DNA analysis, metrology or X-ray imaging.
Rev. 5302C–IMAGE–03/04
1
Camelia™ Pac kage Contents
Depending on the configuration selected, a Camelia package may include:
Camelia color camera
FGT color frame grabber board
Po wer supply cable and RS-232 cable
Data and sync cable
COMMCAM software
FGT software
Documentation
System Requirements
24V (0.6A) power supply
•Computer: – Minimal configuration:
Operating system:
NIKON lens
Lighting control – Shutter/chopper or pulsed lighting – IR cut-off filter: a 2 mm BG38 is recommended to filter light from 700 to
®
Intel
Pentium® II 350 MHz RAM: 128 Mb Cache memory: 256 Kb 1 free PCI slot
Windows Windows
1100 nm
®
NT 4.0
®
95b, 98
Getting Started 1. Connect the camera to one of the computer serial ports (COM1 or COM2) by
using the RS-232 cable.
2. Switch on the camera.
3. Install “COMMCAM” software in your computer (refer to the “COMMCAM User Guide”).
4. Install the FGT COLOR frame grabber board and FGT software on your com­puter (refer to the “FGT Frame Grabber User Guide”).
5. Run the system.
2
CAMELIACOL 4M Color Digital Camera
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Description of Imaging System
Figure 1. Imaging System
CAMELIACOL 4M Color Digital Camera
Light Source
Lens
FGT
Frame Grabber
Computer
Power Supply Cable
24V
Light & Shutter Trigger
Cables
& BG38
Control Box
Data &
Sync Cable
RS-232
Cable
Shutter
Camera
The Camelia 4M is powered by a 24V power supply and is configured through the serial port of the computer. The camera sends digital video to the FGT frame grabber.
As Camelia's CCD is a full frame sensor, either pulsed lighting or a chopper/shutter must be used in front of the camera during the integration time in order to obtain incident lighting on the CCD. The user must design an electro-optical interface to drive the cam­era, shutter/chopper or lighting by using the SHUTTER signal delivered by the camera. If required, the system can send an external trigger or external ITC (integration time control) signal to the camera.
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3
Camelia Color 4M Camera
CCD Description Image format: 28.7 mm (V) x 28.7 mm (H)
2048 mm (V) x 2048 mm (H) active pixels
Pixel Geometry: 14 µm (V) x 14 µm (H)
Filter Mosaic (Bayer Pattern):
First Column
B G B G
G R G R
B G B G
First Line
Note: The first active pixel of the first active line is blue.
G R G R
Antiblooming by clocking.
Timing 2 x 2 and 4 x 4 pixel binning can be used to enable previewing modes.
When binning is used, the camera deliv ers black and white video.
The data rate is (pixel clock): 20 MHz.
Table 1. Frame Readout Times
Mode Frame Readout Time
No binning 235 ms 2 x 2 pixel binning 125 ms 4 x 4 pixel binning 70 ms
Three timing modes are available:
Continuous
External triggered
Integration time controlled (ITC)
Continuous Timing Mode The camera delivers frames continuously:
Frame N+1 integration starts as soon as frame N readout is completed (Figure 2).
Integration time is set by the RS-232 interface.
Figure 2. Continuous Timing Diagram
Frame
integration
Int. time set by RS232
LEN
FEN
SHUTTER
4
CAMELIACOL 4M Color Digital Camera
Shutter
delay
Video lines
Frame
readout
2048 pixels
3
2
1
2046
2047
2 ms
2048
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CAMELIACOL 4M Color Digital Camera
External Trigger Timing Mode The external TRIG signal gives the user control over the start of frame integration:
The rising edge of TRIG activates the start of frame integration. This rising edge is synchronized by the camera with a precision of 112 µs.
Integration time is set by the RS-232 interface.
Note that the TRIG signal period must be greater than the sum of the integration time and the frame readout time.
Figure 3. External Trigger Timing Diagram
Frame
integration
Int. time set by RS232
TRIG
LEN
FEN
SHUTTER
Shutter
delay
Video lines
Frame
readout
2048 pixels
3
2
1
2046
2047
Waiting
2048
Integration Time Control (ITC) Timing Mode
The external ITC signal enables the user to fully control the frame integration:
The falling edge of ITC activates the start of frame integration. This falling edge is synchronized by the camera with a precision of 112 µs.
The rising edge of ITC activates the stop of frame integration. This rising edge is synchronized by the camera with a precision of 112 µs.
Note that the ITC signal period must be g r eater t han t he su m of t he integration time (defined by ITC low) and the frame readout time.
Figure 4. Integration Time Control Timing Diagram
Frame
integration
ITC
LEN
FEN
SHUTTER
Shutter
delay
Video lines
Frame
readout
2048 pixels
3
2
1
2046
2047
Waiting
2048
Antiblooming by Clocking
Antiblooming can be activated or inhibited (see “RS-232 Interface” on page 7):
Antiblooming OFF: antiblooming inhibited. This mode is recommended if
Antiblooming ON: antiblooming activated.
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antiblooming is not required for the application.
5
Electrical Interfaces
Power Supply
Digital I/O
Table 2. Power Supply Specifications
Parameter Nominal Value Min Value Max Value
Voltage 24V 20V 28V Current 0.60A N/A N/A
Table 3. Digital I/O Specifications
Symbol I/O Definition Level
Timing control:
- TRIG_ITC is either an external trigger or ITC (integration time control) depending on the timing mode configured via RS-232.
TRIG_ITC I
Operation with external trigger:
- TRIG_ITC = TRIG
Operation with ITC:
- TRIG_ITC = ITC
- TRIG_ITC is synchronized by the camera line clock (jitter: 112 µs)
LVDS
(1)
S(11..0) O Digital video output: 12 bits LVDS
Frame enable:
FEN O
LEN O
PCK O Pixel clock LVDS
SHUTTER O
Note: 1. LVDS (Low Voltage Differential Signal) is an EIA-644 standard.
- FEN = 0: frame data valid: active lines
- FEN = 1: frame data not valid
Line enable:
- LEN = 0: line data valid: active pixels
- LEN = 1: line data not valid
Shutter open/close:
- during integration: SHUTTER = 1
- during readout: SHUTTER = 0
Delay between the falling edge of SHUTTER and the start of readout:
- 4 positions: 1, 5, 10 or 20 ms (set via RS-232).
LVDS
LVDS
LVDS
LVDS Drivers/Receivers:
LVDS: all digital I/Os are differential: (signal+, signal-). Specifications are given for signal +.
Manufacturer: National Semiconductor
®
.
Driver: DS90C031TM (SO16 package)
Receiver: DS90C032TM (SO16 package).
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CAMELIACOL 4M Color Digital Camera
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CAMELIACOL 4M Color Digital Camera
RS-232 Interface The camera configuration is set by the RS-232 interface. Table 4 lists the available
features:
Table 4. RS-232 Specifications
Function RS-232 Configuration Comment
3 modes:
Timing mode
Binning
CDS gain
Camera gain
Shutter control
Shutter delay
Antiblooming control
(1)
(1)
- continuous (free running)
- external trigger
- external ITC
3 modes:
- no binning
- 2 x 2 pixel binning
- 4 x 4 pixel binning
2 positions:
- G = 1
- G = 4
Camera gain value from 1.00x to
2.00x in 16 steps 2 modes:
- active
- inactive (always open)
4 positions:
- 1 ms
- 5 ms
- 10 ms
- 20 ms
2 modes:
- active
- inactive
Image size: 2048 (H) x 2048 (V) Image size: 1024 (H) x 1024 (V) Image size: 512 (H) x 512 (V)
G = 4 is recommended for applications requiring high sensitivity
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Integration time
Note: 1. The camera’s video signal processing gain can be adjusted by setting either the CDS
or camera gain. CDS gain: a 1x or 4x gain is available at the input of the video signal processing. Use
of the 4x gain is recommended for low level applications as it results in lower noise. Camera gain: a range of 1x to 2x is available in 16 steps.
Value must be in milliseconds Range: 1 to 2000 ms
Must be an integer (e.g. 120 for 120 ms, 120.4 is not permitted)
7
Electro-optical Performance
Conditions:
Frame integration time: 40 ms
Camera operating ambient temperature: 25°C
Table 5. Electro-optical Performance
Parameter Symbol
Full-scale value Temporal noise
(2)
(3)
Dark signal non-uniformity Dynamic range
Responsivity
Responsivity
Resolution
(5)
(6)
(6)
(7)
Horizontal Resolution Vertical Resolution
(4)
VPE 4095 LSB
VN 2 LSB
DSNU 5 LSB
DY 2048 – Rb
Rg
Rr
Rb Rg
Rr
TBD TBD
Typical
Value Unit
0.76
1.39
LSB/(nJ/cm
1.79 220
390
LSB/(lux.s)
510
– –
(1)
2
)
– –
Notes: 1. LSB (Least Significant Bit): 12-bit = 4095 LSB or gray levels
2. Full-scale value VPE: maximum digital video signal
3. Temporal noise VN: r.m.s value in darkness; measured by subtracting 2 images pixel to pixel
4. Dark signal non-uniformity: r.m.s value; excludes blemishes
5. Dynamic range DY = VPE/VN
6. Responsivity conditions: 3200K, BG38 2 mm, camera gain = 1x, light source powered between 400 and 700 nm, measured on the sensor.
7. Resolution conditions: light source 3200K, BG38 2 mm, measured at VIDEO = 2000 LSB, CDS gain = 1x.
8
CAMELIACOL 4M Color Digital Camera
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CAMELIACOL 4M Color Digital Camera
Figure 5. Camelia Color 4M Spectral Responsivity
4
3
)
2
2
Responsivity (LSB/nJ/cm
1
0
500450400
Blue Green Red
700650600550
Wavelength (nm)
Note: nJ/cm2 measured on the CCD chip.
Including BG38 2 mm.
Image Grade
Operating conditions Room temperature: 20°C
Integration time in darkness: 100 ms
Light source: Halogen 3200K with BG38 (2 mm thick) IR cut-off with f/4 aperture
Defective pixels will be detected separately for each color and with respect to the mean value of each color
(See Table 6 on page 10 for amplitude or d eviation with respect t o the mea n value). The number and size of blemishes are computed by taking into account all the pixels of the frame.
Definitions A column defect is a one-pixel-wide column with more than 20 defective pixels. The col-
umn's height is constant with the light level. ADU: 12 bits correspond to 4096 ADUs. α is the contrast of the defect measured as a percentage under light and in ADU in
darkness.
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9
Specification in darkness
Table 6. Specifications in Darkness
Type Defects
Blemish threshold 90 ADU > α > 45 ADU α > 90 ADU Maximum number of pixels
affected by blemishes Area maximum (in pixels)
Column threshold 45 ADU > α > 12 ADU α > 45 ADU Maximum number of column
defects
Note: Adjacent columns in darkness are tolerated.
150
3 x 3
10 0
20 (among the 150)
1 x 1
Specification Under Illumination
The test is carried out under illumination so that the most sensitive channel is at 80% of the saturation level.
Blemishes are tested under white light and column defects are tested under green light (P20).
Table 7. Specifications under Illumination
Type (White or Black Defects at 80% x VSAT
Blemish threshold [α] > 50% Maximum number of pixels affected by
blemishes Maximum number of blemishes
Area maximum (in pixels) Column threshold 1 [α] > 50% Maximum number of column defects
(columns greater than threshold 1) Column threshold 2 [α] > 4% Maximum number of column defects
(columns greater than threshold 2)
Notes: 1. A maximum of 100 blemishes with an area between 1 x 1 and 2 x 2 is accepted but
the total number of pixels affected by blemishes is below 140.
2. Inside an area of 3 x 3 pixels, there is a maximum of 5 defective pixels.
3. There are no specifications on column linearity. Two defective columns must be sepa­rated by a minimum number of two good pixels.
(1)
100
2 x 2
50 (including the 25)
140
25
3 x 3
(3)
(2)
4
or 2(X) x 4(Y)
10
CAMELIACOL 4M Color Digital Camera
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CAMELIACOL 4M Color Digital Camera
Geometrical Specifications
Figure 6. Camelia Color 4M Geometrical Specifications
Front panel
4 x M3
(depth 6 mm)
2 x 2.0 mm
64.0 mm
6.0 mm
66.0 mm
74.0 mm
64.0 mm
4.0 mm
25.6 mm
2 x 1/4_20 UNC 2B
108.0 mm
Rear panel
Data & Sync
CAMELIA COLOR 4M SN:
112.0 mm
Weight: 1.4 kg
Made in France
RS 232
110.5 mm
Environmental Requirements
Operating temperature: 0 to 50°C
Storage temperature: -20 to 70°C
Operating humidity: < 80% at 35° C
Vibration: 2g sinusoidal, from 10 to 55 Hz
114.0 mm
144.5 mm
Power
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11
Connectors and Cables
Data and Sync Connector
50 points 3M® connector.
Connector reference: HIROSE DX10A-50S
Mating connector on cable side: HIROSE DX40-50P; shell: HIROSE DX50-CV1
Table 8. Data and Sync
Pin Number Signal Pin Number Signal
1PCK+26LEN+ 2PCK-27LEN­3 FEN+ 28 COLOUR_O1+ 4 FEN- 29 COLOUR_O1­5 COLOUR_O2+ 6 COLOUR_O2­7 PDATA0+ 32 PDATA1+ 8 PDATA0- 33 PDATA1-
9 PDATA2+ 34 PDATA3+ 10 PDATA2- 35 PDATA3­11 PDATA4+ 36 PDATA5+ 12 PDATA4- 37 PDATA5-
(3)
Pinout
(1)
(1)
(1)
(1)
30 GROUND 31 GROUND
13 PDATA6+ 38 PDATA7+ 14 PDATA6- 39 PDATA7­15 PDATA8+ 40 PDATA9+ 16 PDATA8- 41 PDATA9­17 PDATA10+ 42 PDATA11+ 18 PDATA10- 43 PDATA11­19 GROUND 44 NC 20 GROUND 45 NC 21 SHUTTER+ 46 TRIG_ITC+ 22 SHUTTER- 47 TRIG_ITC­23 COLOUR_I1+ 24 COLOUR_I1-
(1)
(1)
48 COLOUR_I2+ 49 COLOUR_I2-
25 NC 50 NC
Notes: 1. Not used for Camelia Color: must be left unconnected.
2. NC: not connected.
3. A Data and Sync cable is provided with the FGT frame grabber. It includes a part that
connects to the electro-optical interface, and to the FGT frame grabber. Refer to the “FGT Frame Grabber User Manual”.
(2)
(2)
(1)
(1)
12
CAMELIACOL 4M Color Digital Camera
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CAMELIACOL 4M Color Digital Camera
Po wer Supply Cable Connector on supply side: SUBD9 male
Table 9. Pinout
Pin Number Signal
124V 224V 3NC 4NC 5NC 6 GROUND 7 GROUND 8NC 9NC
Note: NC: not connected.
RS-232 Cable Connector on computer side:
•DSUB9 female,
Pinout compatible with a computer serial port. The pinout is the same on both the camera side and the computer side.
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13
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Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Compa ny’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems.
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®
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