Rainbow Electronics ATMOS1M60 User Manual

Main Features

• High Sensitivity and High SNR Performance 1/2" CMOS Sensor

• Total Resolution of 1.3M (with 5 µm Square Pixels)

• High Data Rate: 75 Mpixels/s Provides 60 Frame/s at 1M Resolution (for 1M60)

• CameraLink

• Flexible and Easy to Operate via Serial Communication Control

– Gain: 0 dB to 18 dB in 3 dB Steps – Dynamic Range: 8, 10 or 12-bit Data – Contrast Expansion – Shutter Time Pogrammable – Subsampling: 1/4 and 1/16 Resolution – Trigger Mode: Free-run or External Trigger Mode – Programmable ROI – Test Pattern

• Column FPN Correction

• Programmable Look-up Table

• Single Power Supply: DC 12 V to 24 V 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 - 1 Channel)

CameraLink® Areascan Cameras

™

ATMOS ATMOS

1M60

™

1M30

Product Description

This camera features an outstanding sensitivity and SNR, even at maximal speeds. The ROI allows to increase the frame rate (for instance, 175 fps in VGA format 1M60). 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 users of megapixel cameras.

an attractive alterna-

Applications

High-speed, SNR 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

Preliminary

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1. Typical Performances

Table 1-1. Camera Typical Performances

Sensor Characteristics at Maximum Pixel Rate

1M60 1M30 Unit

Resolution H × V 1312 × 1024 1312 × 1024 Pixels

Pixel size (square) 5 × 5 5 × 5 µm

Maximum frame rate 48 24 Hz

Pixel rate 75 37.5 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

Responsivity 10000

(1)

LSB/(Lux.s)

Output RMS Noise Dynamic range

Conversion factor 10 e-/ LSB

Dark Current 1500 e-/s

Over Illumination Behavior 75 Esat

Mechanical and Electrical Interface

Size (w × h × l) 44 × 44 × 45 mm

Weight 115 g

Lens Mount C-mount

Sensor Alignment

Power supply single 12 to 24 VDC

Power consumption < 2 W

Operating temperature 0 to 55 (non-condensing) °C

Storage temperature -40 to 70 (non-condensing) °C

< 2.7 LSB rms

> 63

(2)

∆x, y = ± 250

∆z = ±150

= ± 0.7

∆0

= 0-200

∆tilt

µm µm

degree

µm

Measured with light source 3200°K and IR filter

Warning:

1. When exposed to such illumination level the sensor might lock-up and should be reset

See Register Software Reset @ 206H, Internal Register Mapping on page 17

ATMOS -1M60/1M30 [Preliminary]

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[Preliminary] ATMOS -1M60/1M30

Figure 1-1. Responsivity Diagram

)

LSB/( nJ/cm

300 400 500 600 700 800 900 1000 1100

Figure 1-2. Quantum Efficiency

Responsivity at 0 dB Gain

Quantum Efficiency

0,8 0,7 0,6 0,5 0,4

QE (%)

0,3 0,2 0,1

400 500 600 700 800 900 1000

Wavelength (nm)

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2. Standard Conformity

The cameras have been tested in the following conditions:

• Camera with complete Atmel housing

• Shielded power supply cable

• CameraLink 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.

ATMOS -1M60/1M30 [Preliminary]

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3. Camera Description

Figure 3-1. Camera Synoptic

[Preliminary] ATMOS -1M60/1M30

DC power

Camera Link

I/F

CameraLink

Transceiver

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 CameraLink interface. The camera uses the base configuration of the CameraLink standard.

Note: DVAL permanently tied to 1 (high) level.

Data can be delivered on a single channel or two de-multiplexed channels. The data format configuration might be in 12-bit, 10-bit, or 8-bit. 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 CameraLink serial communica-

tion. 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)

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, which can lead to image distortion when capturing fast moving objects. The way to bypass this, is to use the camera with a strobe light or a shutter element so that 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 17.

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 CameraLink 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

ATMOS -1M60/1M30 [Preliminary]

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[Preliminary] ATMOS -1M60/1M30

)

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 1M60 1M30

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

Line n Readout and Reset

Readout

and Rese

(Frame N

Line n

Integration

(Frame N)

4.1.3 Triggered Mode

Shutter

Frame N - 1

Readout

out

Time

Programmable

Shutter Time

Frame N

Readout Time

The maximum frame rate of 48 frame/s for the 1M60 camera (or 24 frame/s for the 1M30 camera) is given in this mode with a shutter time set to 0.

See register Aperture Shutter Time @ 246H, Internal Register Mapping on page 17.

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:

• 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 CameraLink interface (FVAL inactive)

• Shutter output signal is activated during a time programmable within 0 to Tsh range by step of T1

• Readout of frame N. The readout data is forwarded to the CameraLink 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

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The trigger delay is a few µs. The minimum pulse duration is 1µs. The edge of trigger is programmable. The source of trigger is selectable between CameraLink 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 17.

Table 4-2. Shutter Time Values at Triggered Mode

Label Description 1M60 1M30

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 n Reset

Line 1

Integration

(Frame N)

Line n

Integration

(Frame N)

Line 1 Readout

and Reset

Line n 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

• Readout of frame N. The readout data is forwarded to the CameraLink 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 µ s. The minimum pulse duration is 1µs. The edge of trigger is programmable. The source of trigger is selectable between CameraLink CC1 signal and TTL_IO trigger input. The period is defined by the programmable shutter time + readout time + wait.

Frame N

Readout

Programmable

Shutter Time

ATMOS -1M60/1M30 [Preliminary]

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