Rainbow Electronics ATMOS 2M60 User Manual
Main Features
• High Sensitivity and High SNR Performance 2/3" CMOS Sensor
• Total Resolution of 2.5M (with 5 µm Square Pixels)
• High Data Rate: 150 Mpixels/s Provides 60 Frame/s at 2M Resolution (for 2M60)
• Camera Link
• Flexible and Easy to Operate via Serial Communication Control
– Gain: 0 dB to 18 dB in 3 dB Steps
– Bit Depth: 8, 10 or 12-bit Data
– Contrast Expansion
– Shutter Time Pogrammable
– Trigger Mode: Free-run or External Trigger Mode
– Programmable ROI
– Test Pattern
• Column FPN Correction
• Programmable Look-up Table
• Single Power Supply: DC 12V to 24V Provided on Hirose-6 Connector
• Input TTL Trigger Signal and Output TTL Shutter Signal on Hirose-5 Connector
• Compact Design: 44 × 44 × 45 mm (w, h, l)
• C-mount Adapter
• High Reliability - CE and FCC Compliant
®
Data Format (Base Configuration - 2 Channels)
Product Description
This camera features an outstanding sensitivity and dynamic range even at maximal
speeds. The ROI allows to increase the frame rate (for instance, 157 fps in VGA
format 2M60). ATMOS™ cameras are based on a rolling shutter CMOS sensor.
The configuration interface provides access to advanced functions (contrast expansion, image calibration, LUT). The versatile and compact mechanical housing enables
you to implement various configurations.
These features combined with a compelling price, make ATMOS
tive for demanding users of megapixel cameras.
an attractive alterna-
Camera Link®
Areascan
Cameras
™
ATMOS
ATMOS
2M60
™
2M30
Preliminary
Applications
High-speed, dynamic range performance and reliability of this camera make it suitable
for machine vision, especially:
Material Inspection (e.g. glass, IC, PCB)
•
• Robot Guidance
• Metrology
and various applications like:
Microscopy
•
• Surveillance Demanding Tasks
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1. Typical Performances
Table 1-1. Camera Typical Performances
Sensor Characteristics at Maximum Pixel Rate
2M60 2M30 Unit
Resolution H × V 2096 × 1184 2096 × 1184 Pixels
Pixel size (square) 5 × 5 5 × 5 µm
Maximum frame rate 48 24 Hz
Pixel rate 150 75 MHz
Camera Performances
Bit depth 8, 10 or 12 Bits
Spectral range 350–1000 nm
Linearity ±2% in 5% and 95% of FSR
PRNU 1.5% rms
FPN 0.1% rms
Peak Response @ G = 0 33
(1)
LSB/nJ/cm
2
Output RMS Noise
Dynamic range
< 3 LSB rms
> 62.5
Conversion factor 11 e
Dark Current 1500 e
Over Illumination Behavior 75 Esat
Mechanical and Electrical Interface
Size (w × h × l) 44 × 44 × 45 mm
Weight 115 g
Lens Mount C-mount
∆x, y = ± 250
Sensor Alignment
∆z = ±150
= ± 0.7
∆0
xy
= 0-200
∆tilt
z
degree
Power supply single 12 to 24 VDC
Power consumption < 3 W
Operating temperature 0 to 55 (non-condensing) °C
Storage temperature -40 to 70 °C
Note: 1. Measured with light source 3200°K and BG38 IR cut-off filter 2 mm thickness.
dB
-
/ LSB
-
/s
µm
µm
µm
2
ATMOS -2M60/2M30 [Preliminary]
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[Preliminary] ATMOS -2M60/2M30
Figure 1-1. Responsivity Diagram
100%
80%
η = 70%
Responsivity at 0 dB gain
60%
40%
20%
Response (%)
0%
300 400 500 600 700 800 900 1000
Figure 1-2. Quantum Efficiency
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
0
η = 50%
η = 60%
Wavelength (nm)
Quantum Efficiency
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500 800
Wavelength (nm)
3
2. Standard Conformity
The cameras have been tested in the following conditions:
• Camera with complete Atmel housing
• Shielded power supply cable
• Camera Link data transfer cable ref. 14B26-SZLB-500-OLC (3M™)
• Linear AC-DC power supply
Atmel recommends using the same configuration to ensure compliance with the following
standards.
2.1 CE Conformity
The ATMOS cameras comply with the European directive 89/336/CEE (EN55022 A/CISPR22 A,
EN55024, EN61000-6-2).
2.2 FCC conformity
ATMOS Cameras comply with Part 15 of FCC rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may
cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own
expense.
Warning: Changes or modifications to this unit not expressly approved by the party responsible
for compliance could void the user's authority to operate this equipment.
4
ATMOS -2M60/2M30 [Preliminary]
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3. Camera Description
Figure 3-1. Camera Synoptic
[Preliminary] ATMOS -2M60/2M30
DC power
Camera Link
I/F
Trigger
Shutter
CameraLink
Transceiver
TX
RX
Power Supplies
Data
Strobe, LVAL
FVAL
Trigger
Shutter
Serial Line
Sequencer
Controller
Microcontroller
CMOS
SENSOR
The camera is based on a single tap CMOS sensor which delivers a 12-bit digital video signal at
its output. An FPGA has been implemented for image processing (FPN column correction, conversion LUT, contrast expansion). The camera is powered by a single DC power supply from
12V to 24V. The functional interface (data and control) is provided with the Camera Link interface. The camera uses the base configuration of the Camera Link standard.
Note: DVAL permanently tied to 1 (high) level.
Data is delivered on two channels. The data format configuration might be in 12-bit, 10-bit, or 8bit. It is possible to use external triggers with the camera (CC1 signal or TTL_IO trigger input) in
different trigger modes see ”Synchronization Modes” on page 6 The camera configuration and
settings are done via the Camera Link serial communication. This interface is used for:
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• Gain and offset setting
• Data output format
• Synchronization modes: free-run or external trigger modes
• Shutter time
• Test pattern generation
• Upload and download of correction data (FPN column correction, LUT)
5
4. Timing
4.1 Synchronization Modes
The camera operates in rolling shutter mode.
4.1.1 Optimal Use of the Rolling Shutter
As shown in the following timing diagrams, Figure 4-1, exposure does not happen at the same
time for all lines. When using the camera with a strobe light or a shutter element all the lines are
exposed during the same time and no image distortion is visible when capturing fast moving
objects.
The integration time for each line is: readout (+ programmable shutter time, when used). A shutter signal is provided to strobe a light source or to drive a shutter element. You can set the
camera to operate in one of the following synchronization modes: periodic, triggered, triggered
without full reset and ITC. See register Mode Control @ 204H, Internal Register Mapping on
page 16.
4.1.2 Free-run Mode (or Periodic Mode)
Principle: The camera operates in periodic mode.
The period is defined by readout time (+ programmable shutter time, when used). Valid data is
forwarded to the Camera Link interface during the next frame readout starting with the first line.
If shutter time is set to 0:
The frame N is readout while the first line integrates for frame N+1. As soon as the frame N
readout has ended starts the readout of frame N +1.
Figure 4-1. Free-run Mode Chronogram
Line 1
Integration
Line 1 Readout
and Reset
Line n Readout
and Reset
(frame N)
Line n
Integration
(Frame N)
Frame N
Readout
Frame N+1
Readout
6
ATMOS -2M60/2M30 [Preliminary]
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[Preliminary] ATMOS -2M60/2M30
)
t
If shutter time is set to > 0:
Readout is suspended between two consecutive frame readout and shutter output signal is activated (programmable polarity) for a time configurable within 0 to Tsh range by step of T1.
Table 4-1. Shutter Time Values at Free-run Mode
Label Description 2M60 2M30
Tsh Maximum shutter time (ms) 655 1310
T1 Step duration (µs) 10 20
Figure 4-2. Free-run Mode and Shutter Chronogram
Line 1
Integration
Line 1
Readout
and Rese
(Frame N
4.1.3 Triggered Mode
Line n
Line n Readout
and Reset
Shutter
out
Frame N - 1
Readout
Time
Programmable
Shutter Time
Integration
(Frame N)
Frame N
Readout Time
The maximum frame rate of 48 frame/s for the 2M60 camera (or 24 frame/s for the 2M30 camera) is given in this mode with a shutter time set to 0.
See register Aperture Shutter Time @ 246H, Internal Register Mapping on page 16.
Principle: An external trigger starts the reset of the sensor, then snap and readout of a frame,
the integration time is defined by readout time (+ programmable shutter time, when used).
The trigger event initiates the following sequence:
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• Stop of readout frame in progress and reset of readout pointer to line 1
• Readout of previous dummy frame and integration start of the frame N. The readout data of
previous frame is not forwarded on Camera Link interface (FVAL inactive)
• Shutter output signal is activated during a time programmable within 0 to Tsh range by step
of T1
7
• Readout of frame N. The readout data is forwarded to the Camera Link interface (FVAL
active) starting with the first line
• Readout of dummy frames (to prevent against large dark current integration) while the
camera waits for the next trigger event
The trigger delay is a few µs. The minimum pulse duration is 1 µs. The edge of trigger is programmable. The source of trigger is selectable between Camera Link CC1 signal and TTL/IO
trigger input. The period is defined by readout time + programmable shutter time + readout time
+ wait. Therefore the minimum period is 2
× readout time.
See register Aperture Shutter Time @ 246H, Internal Register Mapping on page 16.
Table 4-2. Shutter Time Values at Triggered Mode
Label Description 2M60 2M30
Tsh Maximum shutter time (ms) 655 1310
T1 Step duration (µs) 10 20
Figure 4-3. Triggered Mode Chronogram
Trigger N EventTrigger In
Trigger Delay
Line 1 reset
Line 1
Integration
(Frame N)
Line 1 Readout
and Reset
Shutter out
FVAL
4.1.4 Triggered Mode without Full Reset Principle: An external trigger starts the snap and readout of a frame, without resetting the sen-
sor. The integration time is defined by readout time (+ programmable shutter time, when used).
The trigger event initiates the following sequence:
• Stop of readout frame in progress and reset of readout pointer to line 1
• Shutter output signal is activated during a time programmable within 0 to Tsh range by step
of T1
Line n Reset
Line n
Integration
(Frame N)
Programmable
Shutter Time
Frame N
Readout
Line n Readout
and Reset
8
ATMOS -2M60/2M30 [Preliminary]
5440A–IMAGE–10/05
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