Photon Focus OEM-D752E User manual

User Manual
OEM-D752E and OEM-D1024E
CMOS Sensor Module Series
MAN032 04/2012 V1.2

All information provided in this manual is believed to be accurate and reliable. No
responsibility is assumed by Photonfocus AG for its use. Photonfocus AG reserves the right to
make changes to this information without notice.
Reproduction of this manual in whole or in part, by any means, is prohibited without prior
permission having been obtained from Photonfocus AG.
1

2

Contents
1 Preface 5
1.1 AboutPhotonfocus...................................... 5
1.2 Contact............................................. 5
1.3 SalesOffices .......................................... 5
1.4 FurtherInformation...................................... 5
1.5 Legend ............................................. 6
2 Introduction and Motivation 7
3 OEM Specification 9
3.1 Introduction .......................................... 9
3.2 FeatureOverview ....................................... 10
3.3 TechnicalSpecification .................................... 11
3.4 SignalAssignment....................................... 13
4 Functionality 17
4.1 ImageAcquisition....................................... 17
4.1.1 ReadoutModes .................................... 17
4.1.2 ExposureControl ................................... 19
4.1.3 MaximumFrameRate ................................ 19
4.1.4 Constant Frame Rate (CFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 ImageInformation ...................................... 20
4.2.1 Counters and Average Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.2 StatusLine ....................................... 20
4.3 PixelResponse......................................... 21
4.3.1 LinearResponse.................................... 21
4.3.2 LinLog®......................................... 22
4.3.3 Skimming........................................ 27
4.3.4 Grey Level Transformation (LUT) . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4 TestImages........................................... 30
4.4.1 OEM-D1024E Test Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.2 OEM-D752E Test Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.4.3 Troubleshooting using the LFSR . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5 ImageCorrection ....................................... 34
4.5.1 Overview........................................ 34
4.5.2 Offset Correction (FPN, Hot Pixels) . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.5.3 GainCorrection .................................... 36
4.5.4 CorrectedImage.................................... 37
4.6 ReductionofImageSize ................................... 38
4.6.1 Region of Interest (ROI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.6.2 Multiple Regions of Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.6.3 Decimation....................................... 41
CONTENTS 3

CONTENTS
4.7 ExternalTrigger ........................................ 41
4.7.1 TriggerSource..................................... 42
4.7.2 TriggerMode ..................................... 42
4.7.3 TriggerDelay...................................... 43
4.8 StrobeOutput......................................... 43
4.9 Configuration of the OEM interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5 Hardware Interface 45
5.1 Connectors........................................... 45
5.1.1 PowerSupply ..................................... 45
5.1.2 PinoutPCBconnector................................. 46
5.2 ParallelDataInterface .................................... 50
5.3 Read-outTiming........................................ 51
5.3.1 FreerunningMode.................................. 51
5.3.2 Constant Frame Rate Mode (CFR) . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.4 Trigger ............................................. 55
5.4.1 TriggerModes..................................... 55
5.4.2 TriggerDelay...................................... 57
6 Mechanical and Optical Considerations 59
6.1 MechanicalInterface ..................................... 59
6.2 OpticalInterface........................................ 61
6.2.1 CleaningtheSensor.................................. 61
7 Warranty 63
7.1 WarrantyTerms ........................................ 63
7.2 WarrantyClaim ........................................ 63
8 References 65
9 Revision History 67
4

1
Preface
1.1 About Photonfocus
The Swiss company Photonfocus is one of the leading specialists in the development of CMOS
image sensors and corresponding industrial cameras for machine vision, security & surveillance
and automotive markets.
Photonfocus is dedicated to making the latest generation of CMOS technology commercially
available. Active Pixel Sensor (APS) and global shutter technologies enable high speed and
high dynamic range (120 dB) applications, while avoiding disadvantages like image lag,
blooming and smear.
Photonfocus has proven that the image quality of modern CMOS sensors is now appropriate
for demanding applications. Photonfocus’ product range is complemented by custom design
solutions in the area of camera electronics and CMOS image sensors.
Photonfocus is ISO 9001 certified. All products are produced with the latest techniques in order
to ensure the highest degree of quality.
1.2 Contact
Photonfocus AG, Bahnhofplatz 10, CH-8853 Lachen SZ, Switzerland
Sales Phone: [phone] Email: [email protected]
Support Phone: [phone] Email: [email protected]
Table 1.1: Photonfocus Contact
1.3 Sales Offices
Photonfocus products are available through an extensive international distribution network
and through our key account managers. Details of the distributor nearest you and contacts to
our key account managers can be found at www.photonfocus.com.
1.4 Further Information
For further information on the products, documentation and software updates please see our
web site www.photonfocus.com or contact our distributors.
Photonfocus reserves the right to make changes to its products and documenta-
tion without notice. Photonfocus products are neither intended nor certified for
use in life support systems or in other critical systems. The use of Photonfocus
products in such applications is prohibited.
Photonfocus®and LinLog®are registered trademarks of Photonfocus AG.
CameraLink®is a registered mark of the Automated Imaging Association. Prod-
uct and company names mentioned herein are trademarks or trade names of
their respective companies.
5

1 Preface
Reproduction of this manual in whole or in part, by any means, is prohibited
without prior permission having been obtained from Photonfocus AG.
Photonfocus can not be held responsible for any technical or typographical er-
rors.
1.5 Legend
In this documentation the reader’s attention is drawn to the following icons:
Important note
Alerts and additional information
Attention, critical warning
✎
Notification, user guide
6

2
Introduction and Motivation
The OEM camera modules support user specific vision system designs and especially embedded
solutions. Other than in Photonfocus cameras and board level cameras the OEM camera
modules are not complete vision components. The user has to solve the interfacing to his own
electronic solution to get a complete vision solution. From this target some restrictions arise.
One restriction is that Photonfocus can not guarantee the correct function of the complete
solution. Due to the open architecture of the OEM modules excessive support is often needed
to implement the modules in advanced embedded solutions. Under defined boundary
conditions Photonfocus provides this service on contract base. The OEM modules are not
intended for the use in single volumes. The threshold in volume is from 100 modules and more
per year. Long term contracts with the customer ensure the availability of the modules over a
long period to predictable production dates.
For low volume projects please refer to our board level or camera products. These products are
complete vision products that include the software. Due to the character of the board level
and camera products Photonfocus can guarantee for the quality and functionality of these
complete vision products.
The use of the OEM camera modules enables the use of the Photonfocus camera firmware and
software. Thus the user‘s own vision system benefit from these concepts. Modifications in the
firmware can be made on request on contract base. This applies also to modifications in the
Photonfocus software. The user can set up his own software on the base of the PFRemote SDK.
The Photonfocus software itself is platform independent and was already ported to different
operating systems and embedded solutions.
The control of the camera modules over a low level protocol without the help of a CPU is not
supported. The advanced features in Photonfocus E-series products, like LinLog and FPN
correction, require complex control sequences. If user‘s applications require camera module
control over low level commands then only products from the classic Photonfocus product
range are to be considered. Please contact the Photonfocus Support for further consultance.
The idea of the OEM modules is to give the user a very easy to use environment for the own
development. This is supported with the interface definition on the output of the modules.
This interface definition is identically applied to all Photonfocus OEM modules and is based on
the well known AIA interface definition for vision systems. The camera modules permit the
direct interfacing without any background information of the camera electronic. To reach this
goal the modules are sold only with digital interface. This leads to one or two PCB solutions
(see Table 2.1).
Definition OEM-D752E-40 OEM-D1024E-40 OEM-D1024E-80 OEM-D1024E-160
Number of PCBs 1 1 2 2
Sensor Module OEM-D752E-40 OEM-D1024E-40 OEM-A1024E-80 OEM-A1024E-160
ADC Module not required not required OEM-ADCE-160-12 OEM-ADCE-160-12
Table 2.1: Overview of the OEM camera modules
7

2 Introduction and Motivation
8

3
OEM Specification
3.1 Introduction
The OEM camera modules from Photonfocus are aimed at demanding applications in industrial
image processing. The OEM camera modules provide an exceptionally high dynamic range of
up to 120 dB at a resolution of 1024 x 1024 pixels or 752 x 582 pixels. The OEM camera modules
are built around a monochrome CMOS image sensor, developed by Photonfocus. The principal
advantages are:
• Extremely high image contrast achieved by LinLog technology.
• Ideal for high speed applications: global shutter, in combination with several
simultaneously selectable read out windows (Multiple ROI).
• Grey scale resolution up to 12 bit.
• Low power consumption at high speeds.
• Resistance to blooming.
• The OEM camera modules are provided with a low voltage CMOS (LVCMOS) parallel data
interface.
• The compact size of only or 44 x 44 mm2make the OEM camera module series the perfect
solution for applications in which space is at a premium.
The general specification and features of the OEM camera modules are listed in the following
sections.
9

3 OEM Specification
3.2 Feature Overview
OEM camera modules
Interfaces Low voltage CMOS (LVCMOS), 3.3 V level
OEM Camera Module Control PFRemote SDK
Configuration Interface serial 9’600 baud (for -80/160 models 57.6k baud is also available)
Trigger Modes Interface Trigger and separate Trigger I/O
Exposure Time Defined by camera module or trigger pulse width
Features Linear Mode / LinLog Mode / Skimming Mode
Shading Correction (Offset and Gain)
Grey scale resolution 12 bit / 10 bit / 8 bit
Region of Interest (ROI) / Multiple Regions of Interest (MROI)
Look-up table (10 to 8 bit) / Decimation
Trigger input / Strobe output with programmable delay
Test pattern / Image information / Status line
Table 3.1: Feature overview (see Chapter 4 for more information)
10

3.3 Technical Specification
OEM-D752E OEM-D1024E
Technology CMOS active pixel
Scanning system progressive scan
Optical format / diagonal 2/3" / 10.12 mm 1" / 15.42 mm
Resolution 752 x 582 pixels 1024 x 1024 pixels
Pixel size 10.6 µm x 10.6 µm
Active optical area 8.0 mm x 6.2 mm 10.9 mm x 10.9 mm
Random noise < 0.5 DN RMS @ 8 bit / gain=1
Fixed pattern noise (FPN) < 1 DN RMS @ 8 bit / gain=1 / offset correction on
Dark current 2 fA / pixel @ 30°C
Full well capacity 200 ke−
Spectral range 400 .. 900 nm
Responsivity 120 x 103DN / (J/m2) @ 610 nm / 8 bit / gain=1
Optical fill factor 35 %
Dynamic range up to 120 dB (with LinLog)
Colour format monochrome
Characteristic curve linear, LinLog, Skimming
Shutter mode global shutter
Min. Region of Interest 1 row x 9 columns
Grey scale Resolution 12 bit / 10 bit / 8 bit
Digital Gain x1 / x2 / x4
Exposure Time 10 µs ... 0.41 s
Table 3.2: General specification of the OEM camera modules
OEM-D7524E-40 OEM-D1024E-40
Exposure Time Increment 25 ns 25 ns
Frame Rate ( Tint = 10 µs) 87 fps 37 fps
Pixel Clock Frequency 40 MHz 40 MHz
Pixel Clock Cycle 25 ns 25 ns
Camera Taps 1 1
Readout mode sequential integration sequential integration
and readout and readout
Table 3.3: Model-specific parameters for the OEM-D752E-40 and for the OEM-D1024E-40 modules
.
3.3 Technical Specification 11

3 OEM Specification
OEM-D1024E-80 OEM-D1024E-160
Exposure Time Increment 50 ns 25 ns
Frame Rate ( Tint = 10 µs) 75 fps 150 fps
Pixel Clock Frequency 40 MHz 80 MHz
Pixel Clock Cycle 25 ns 12.5 ns
Camera Taps 2 2
Readout mode sequential integration sequential integration
and readout or and readout or
simultaneous readout simultaneous readout
Table 3.4: Model-specific parameters for the OEM-D1024E-80 and for the OEM-D1024E-160 modules
OEM-D7524E-40 OEM-D1024E-40
Operating temperature 0°C ... 50°C∗∗ 0°C ... 50°C∗∗
Camera module power supply 0.16 A @ +5 V DC (±10%) 0.16 A @ +5 V DC (±10%)
Camera module power supply 0.1 A @ +3.3 V DC (±10%) 0.1 A @ +3.3 V DC (±10%)
Camera module power supply 0.05 A @ +1.8 V DC (±10%) 0.05 A @ +1.8 V DC (±10%)
Max. power consumption 0.87 W 0.87 W
Dimensions 44 x 44 mm244 x 44 mm2
Mass 15 g 15 g
Conformity RoHS, WEEE RoHS, WEEE
Table 3.5: Physical characteristics and operating ranges for the OEM-D752E-40 and for the OEM-D1024E-40
modules (∗∗ OEM modules with extended range of operating temperature on request)
OEM-D1024E-80 OEM-D1024E-160
Operating temperature 0°C ... 50°C∗∗ 0°C ... 50°C∗∗
Camera module power supply 0.15 A @ +5 V DC (±10%) 0.15 A @ +5 V DC (±10%)
Camera module power supply 0.35 A @ +3.3 V DC (±10%) 0.35 A @ +3.3 V DC (±10%)
Camera module power supply 0.16 A @ +1.8 V DC (±10%) 0.16 A @ +1.8 V DC (±10%)
Max. power consumption 2.2 W 2.4 W
Dimensions 44 x 44 mm244 x 44 mm2
Mass 27 g 27 g
Conformity RoHS, WEEE RoHS, WEEE
Table 3.6: Physical characteristics and operating ranges for the OEM-D1024E-80 and for the OEM-D1024E-
160 modules (∗∗ OEM modules with extended range of operating temperature on request)
.
12

Q u a n t u m E f f i c i e n c y v s W a v e l e n g t h
0 . 0 0
0 . 0 5
0 . 1 0
0 . 1 5
0 . 2 0
0 . 2 5
0 . 3 0
0 . 3 5
0 . 4 0
0 . 4 5
0 . 5 0
2 0 0 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 1 0 0 0 1 1 0 0
W a v e l e n g t h / n m
Q u a n t u m E f f i c i e n c y
Figure 3.1: Spectral response of the A1024B Photonfocus CMOS sensor
3.4 Signal Assignment
The interface of the OEM camera modules is a parallel data interface, which follows the AIA
standard. On the module connector the signals are available in a parallel format.
OEM-D752E-40 OEM-D1024E-40 OEM-D1024E-80 OEM-D1024E-160
Pixel Clock per Tap 40 MHz 40 MHz 40 MHz 80 MHz
Number of Taps 1 1 2 2
Greyscale resolution 12 / 10 / 8 bit 12 / 10 / 8 bit 12 / 10 / 8 bit 12 / 10 / 8 bit
CC1 EXSYNC EXSYNC EXSYNC EXSYNC
CC2 not used not used not used not used
CC3 not used not used not used not used
CC4 not used not used not used not used
Table 3.7: Summary of parameters needed for interfacing
.
3.4 Signal Assignment 13

3 OEM Specification
Bit Tap 0, 8 Bit Tap 0, 10 Bit Tap 0, 12 Bit
0 (LSB) A0 A0 A0
1 A1 A1 A1
2 A2 A2 A2
3 A3 A3 A3
4 A4 A4 A4
5 A5 A5 A5
6 A6 A6 A6
7 (MSB for 8 Bit Mode) A7 A7 A7
8 - B0 B0
9 (MSB for 10 Bit Mode) - B1 B1
10 - - B2
11 (MSB for 12 Bit Mode) - - B3
Table 3.8: Port and bit assignments for the OEM-D752E-40 and for the OEM-D1024E-40 camera modules
Bit Tap 0 Tap 1 Tap 0 Tap 1 Tap 0 Tap 1
8 Bit 8 Bit 10 Bit 10 Bit 12 Bit 12 Bit
0 (LSB) A0 B0 A0 C0 A0 C0
1 A1 B1 A1 C1 A1 C1
2 A2 B2 A2 C2 A2 C2
3 A3 B3 A3 C3 A3 C3
4 A4 B4 A4 C4 A4 C4
5 A5 B5 A5 C5 A5 C5
6 A6 B6 A6 C6 A6 C6
7 (MSB of 8 Bit) A7 B7 A7 C7 A7 C7
8 - - B0 B4 B0 B4
9 (MSB of 10 Bit) - - B1 B5 B1 B5
10 - - - - B2 B6
11 (MSB of 12 Bit) - - - - B3 B7
Table 3.9: Port and bit assignments for the OEM-D1024E-80 and for the OEM-D1024E-160 camera modules
.
14

Name PF CL 1.1 8 Bit 10 Bit 12 Bit
STROBE PIXEL_CLK STROBE STROBE STROBE
LVAL LINE_VALID LVAL LVAL LVAL
FVAL FRAME_VALID FVAL FVAL FVAL
DVAL DATA_VALID DVAL DVAL DVAL
SPARE CL_SPARE SPARE SPARE SPARE
PORT_A0 DATA0 A0 A0 A0
PORT_A1 DATA1 A1 A1 A1
PORT_A2 DATA2 A2 A2 A2
PORT_A3 DATA3 A3 A3 A3
PORT_A4 DATA4 A4 A4 A4
PORT_A5 DATA5 A5 A5 A5
PORT_A6 DATA6 A6 A6 A6
PORT_A7 DATA7 A7 A7 A7
PORT_B0 DATA8 B0 A8 A8
PORT_B1 DATA9 B1 A9 A9
PORT_B2 DATA10 B2 - A10
PORT_B3 DATA11 B3 - A11
PORT_B4 DATA12 B4 B8 B8
PORT_B5 DATA13 B5 B9 B9
PORT_B6 DATA14 B6 - B10
PORT_B7 DATA15 B7 - B11
PORT_C0 DATA16 - B0 B0
PORT_C1 DATA17 - B1 B1
PORT_C2 DATA18 - B2 B2
PORT_C3 DATA19 - B3 B3
PORT_C4 DATA20 - B4 B4
PORT_C5 DATA21 - B5 B5
PORT_C6 DATA22 - B6 B6
PORT_C7 DATA23 - B7 B7
Table 3.10: Configuration and port assignment of the PCB-PCB connector in Photonfocus OEM camera
modules
.
3.4 Signal Assignment 15

3 OEM Specification
16

4
Functionality
This chapter serves as an overview of the configuration modes and explains the features of the
OEM camera modules. The goal is to describe what can be done with the OEM camera
modules. The setup of the OEM camera modules is explained in later chapters.
4.1 Image Acquisition
4.1.1 Readout Modes
The OEM camera module series provide two different readout modes:
Sequential readout Frame time is the sum of exposure time and readout time. Exposure time
of the next image can only start if the readout time of the current image is finished.
Simultaneous readout (interleave) The frame time is determined by the maximum of the
exposure time or of the readout time, which ever of both is the longer one. Exposure
time of the next image can start during the readout time of the current image.
Module OEM-D752E-40 OEM-D1024E-40 OEM-D1024E-80 OEM-D1024E-160
Sequential
readout
available available available available
Simultaneous
readout
- - available available
Table 4.1: Readout mode of the OEM camera module series
The following figure illustrates the effect on the frame rate when using either the sequential
readout mode or the simultaneous readout mode (interleave exposure).
E x p o s u r e t i m e
F r a m e r a t e
( f p s )
S i m u l t a n e o u s
r e a d o u t m o d e
S e q u e n t i a l
r e a d o u t m o d e
f p s = 1 / r e a d o u t t i m e
f p s = 1 / e x p o s u r e t i m e
f p s = 1 / ( r e a d o u t t i m e + e x p o s u r e t i m e )
e x p o s u r e t i m e < r e a d o u t t i m e e x p o s u r e t i m e > r e a d o u t t i m e
e x p o s u r e t i m e = r e a d o u t t i m e
Figure 4.1: Frame rate in sequential readout mode and simultaneous readout mode
17

4 Functionality
Sequential readout mode For the calculation of the frame rate only a single formula applies:
frames per second equal to the invers of the sum of exposure time and readout time.
Simultaneous readout mode (exposure time < readout time) The frame rate is given by the
readout time. Frames per second equal to the invers of the readout time.
Simultaneous readout mode (exposure time > readout time) The frame rate is given by the
exposure time. Frames per second equal to the invers of the exposure time.
The simultaneous readout mode allows higher frame rate. However, If the exposure time
strongly exceeds the readout time, then the effect on the frame rate is neglectable.
In simultaneous readout mode image output faces minor limitations. The overall
linear sensor reponse is partially restricted in the lower grey scale region.
When changing readout mode from sequential to simultaneous readout mode
or vice versa, new settings of the BlackLevelOffset and of the image correction
are required.
Sequential readout
By default the camera modules continuously delivers images as fast as possible ("Free-running
mode") in the sequential readout mode. Exposure time of the next image can only start if the
readout time of the current image is finished.
e x p o s u r e r e a d o u t e x p o s u r e r e a d o u t
Figure 4.2: Timing in free-running sequential readout mode
When the acquisition of an image needs to be synchronised to an external event, an external
trigger can be used (refer to Section 4.7 and Section 5.4). In this mode, the camera module is
idle until it gets a signal to capture an image.
e x p o s u r e r e a d o u t i d l e e x p o s u r e
e x t e r n a l t r i g g e r
Figure 4.3: Timing in triggered sequential readout mode
Simultaneous readout (interleave exposure)
To achieve highest possible frame rates, the camera module must be set to "Free-running
mode" with simultaneous readout. The camera module continuously delivers images as fast as
possible. Exposure time of the next image can start during the readout time of the current
image.
When the acquisition of an image needs to be synchronised to an external event, an external
trigger can be used (refer to Section 4.7 and Section 5.4). In this mode, the camera module is
idle until it gets a signal to capture an image.
18