COHU 5935-1000/T100 User manual

Cohu Electronics
5930 Series Thermal Camera User's Manual
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Figure 1 –5935-1000/T100 Thermal Camera
with 100mm Lens Installed
Technical Manual 6X-1060
January 3, 2006

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5930 Series Thermal Camera User's Manual
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Table of Contents
Product Description.......................................................................................................................................4
1.1 FPA Description............................................................................................................................4
1.2 Hardware Description ...................................................................................................................4
1.2.1 FPA Support PCB.........................................................................................................................4
1.2.2 Camera Controller PCB................................................................................................................4
1.2.3 Camera Support PCB...................................................................................................................5
1.2.4 Camera Power Supply PCB .........................................................................................................6
1.3 Camera Operation ........................................................................................................................6
1.4 Lens Options.................................................................................................................................6
1.5 Camera Performance ...................................................................................................................7
1.6 Mechanical Characteristics...........................................................................................................8
2. Installation.....................................................................................................................................8
2.1 Unpacking and Receiving Inspection............................................................................................8
2.2 Lens Cleaning...............................................................................................................................8
2.3 Electrostatic Discharge (ESD) Precautions..................................................................................9
2.4 Tripod Mounting Interface.............................................................................................................9
2.5 Main Rear Panel Signal Connector ..............................................................................................9
2.5.1 Camera Main Signal Connector..................................................................................................10
2.5.2 Mating Rear Panel Connector ....................................................................................................11
2.6 Main Rear Panel Digital Signal Connector .................................................................................11
2.6.1 Camera Digital Signal Connector ...............................................................................................11
2.6.2 Mating Digital Signal Connector .................................................................................................12
2.7 Power Input Selection.................................................................................................................12
2.7.1 AC Line Input Voltage Connections............................................................................................12
2.7.2 24VAC Input Voltage Connections.............................................................................................12
3. Camera Software Features.........................................................................................................13
4. Environmental Specifications......................................................................................................15
4.1 Temperature ...............................................................................................................................15
4.2 Water Resistance........................................................................................................................15
4.3 Relative Humidity........................................................................................................................15
4.4 Shock and Vibration....................................................................................................................16

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List of Tables
Table 1 - FPA Support Functions..................................................................................................................4
Table 2 - Camera Controller Functions.........................................................................................................5
Table 3 - Camera Support Functions............................................................................................................5
Table 4 - Fixed Focus Lenses.......................................................................................................................7
Table 5- Camera Performance......................................................................................................................7
Table 6 - Main Signal Pin Descriptions.......................................................................................................10
Table 7 - Digital Signal Pin Descriptions.....................................................................................................11
Table 8 - Environmental Cable Clamps ......................................................................................................12
Table 9 -Software Features.........................................................................................................................13
List of Figures
Figure 1 - 5930 Series Thermal Camera .....................................................................................................1
Figure 2 - Lens Mechanical Interface............................................................................................................7
Figure 3 - Camera Dimensions.....................................................................................................................8
Figure 4 - Tripod Mounting Locations ...........................................................................................................9
Figure 5 - Camera Rear Panel....................................................................................................................10
Figure 6 - Voltage Input Selection...............................................................................................................13

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Product Description
The Cohu 5930 series is a long wavelength (LWIR) Infrared microbolometer based camera system. The
embeddable electronics provides the foundation for the processing and signal generation for the camera.
Below is a description of all the different aspects that make up the complete camera assembly.
1.1 FPA Description
The FPA used in the 5930 is an uncooled 320 x 240 matrix or "staring" array of microbolometer
detectors (51um square), sensitive in the 8.0-14.0 micron range. The FPA is enclosed in an all-
metal evacuated dewar package, and is thermally stabilized by the electronics using a built in TE
cooler. The FPA incorporates internal thermal reference detectors that provide compensation for
thermal drift and noise.
1.2 Hardware Description
The camera electronics are comprised of four major circuit boards as described below.
1.2.1 FPA Support PCB
The FPA support PCB provides all the interface signals required to control the FPA. The FPA
Support PCB supports all the FPA functions as listed in Table 1.
Table 1 - 5930 SERIES FPA Support Functions
Specifications
FPA Clocks 3
FPA Biases (DAC adjustable) 1
FPA Adjustable Bias Resolution 8 bit
FPA Biases (Fixed) 1
FPA Power Supplies 3
FPA Video Outputs 1
FPA Video Offset Range 0 to +3.25V
FPA Video Offset Resolution 8 bit
FPA Video ADC Resolution 14 bit
FPA Video ADC Rate ≤7.37500 MHz
FPA TEC Setpoints 2
PCB Size 2" x 2"
1.2.2 Camera Controller PCB
The camera controller PCB provides all the video processing and control functions for the
camera. The camera controller PCB provides all the functions listed in Table 2.

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Table 2 –5930 Series Camera Controller Functions
Specifications
FPA Format 320 x 240
FPA Frame Rate NTSC: 59.94 Hz
PAL: 50 Hz
FPA Clock Generation ≤6
FPA Adjustable Bias Generation ≤4
Nonuniformity Correction 2 point gain/offset
NUC Gain Coefficient Precision 16 bit
NUC Gain Range 0 to 2 –2-15
NUC Offset Coefficient Precision 16 bit
NUC Offset Coefficient Range -16,384 to +16,383.5
NUC Offset Refresh Precision 16 bit
NUC Offset Refresh Range -16,384 to +16,383.5
NUC Tables Possible ≤12
Defective Pixel Replace Kernal 5 lines / 7 columns
Intensity Transformation Table Dual 14 in / 16 out
Zone Statistic ROIs 4 Zones
Zone Statistical Computations Average, Sigma, Max., Min.
Processed FPA Video Output Precision 16 bit
Processed FPA Video Output Selections Digitized FPA Video
NUC Corrected Video
Pixel Replaced Video
Intensity Transform Video
PCB Size 2" x 2"
1.2.3 Camera Support PCB
The camera support PCB provides all the power supply conditioning and camera interface
functions. The camera support PCB provides all the functions listed in Table 3.
Table 3 - Camera Support Functions
Specifications
Power Input Range +5.8V to +28.2V
Smart Battery Pack Interface 1 Wire
+VhiM Output (Bias Power) +7.0V to +12V @ 300mA
+5.XVM Output (Main Board Power) +5.0V to +5.5V @ 5.0A
Video Encoder Formats NSTC or PAL
Number of Analog Video Outputs 2 Composite and SVID
Digital Output Formats LVDS (Serialized 4 Pair)
COM Port Interfaces 2
COM Port Formats RS232C
RS422 (Differential Full Duplex)
RS485 (Differential Half Duplex)
Oscillator Frequency NTSC: 49.09090 MHz
PAL: 59.00000 MHz
NI: 80.00000 MHz
External Clock Input Format LVDS
External Sync Input Format LVDS
Calibration Flag Reference Control Dual Temperature, "Heat Only"
Calibration Flag Reference Setpoint 8 bit DAC
Calibration Flag Motor Control PWM
Cooling Fan Interface PWM (+5V Level)
Motorized Focus Interface +5V "H-Bridge"
PCB Size 2" x 2"

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1.2.4 Camera Power Supply PCB
The camera power supply PCB provides all the power conditioning and external interfaces for the
camera. The camera power supply PCB provides the following functions:
 Configures the following power inputs based on model selection;
5935 Series: 95-250VAC
5934 Series: 20-28VAC
5932 Series: 11-16VDC
 Input power conditioning.
 AC Power Fusing.
 Power illumination (internal LED).
 Configures COM port interface (RS422).
 External interface connectors (through cable assemblies) to main Camera electronics
(includes power, COM, analog video and digital video).
 Expansion connectors for auxiliary camera functions (not used on base Camera model).
1.3 Camera Operation
This Camera has a multitude of operational and configuration settings which can be adjusted via
software control. Typically only a few settings or adjustments require attention once the Camera
is embedded into a specific application. A complete list of adjustable settings and software
features can be found in Paragraph 3 of this Document.
Cohu Electronics provides a host software application (Camera Control Interface) that can be
used for generic camera control and camera setup. For specific information on the capabilities of
this application please refer to Cohu CCI manual. Cohu Electronics also sells a developer's
software guide for end-users that intend on designing a custom software interface for their own
application. Contact the Cohu’s Product Manager for more information on how to develop you
own application for this camera.
1.4 Lens Options
The camera is equipped with a lens mount with a specific internal thread to accept a series of
watertight, fixed focus, f/1.4 Infrared lenses. See Table 4 for the f/1.4 lens options. The lenses
are designed with the front lens element sealed for NEMA 4 and IP67 water resistance rating. All
these lenses have the front lens element Diamond Carbon Coated for added resistance against
weather and scratching.

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Table 4 - Fixed Focus Lenses
Cohu Part
Number Focal Length Minimum Focus Distance Field of View (H x V)
T013 13mm 2 inches 69ºx 53º
T025 25mm 12 inches 36ºx 28º
T050 50mm 24 inches 18ºx 14º
T075 75mm 30 inches 13.5ºx 10.5º
T100 100mm 36 inches 9ºx 7º
T200 200mm 120 inches 4.5ºx 3.5º
The front lens plate has a machined groove designed specifically to interface to an O'Ring
installed on the f/1.4 lenses to ensure the water resistance rating of the camera. See Figure 2 for
lens mounting interface specifications.
Figure 2 - Lens Mechanical Interface
1.5 Camera Performance
The Camera meets the performance parameters listed is Table 5.
Table 5- Camera Performance
Performance Requirement Specification
Non-Uniformity Correction < 0.0025
Noise < 3 Counts
NEDT (f/1.4 Optic and FPA) < 100 mKelvin
Operability >99.5%

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1.6 Mechanical Characteristics
The Camera dimensions are as shown in Figure 3. These dimensions show the Camera without
a lens or mating connector. The mating connector adds about 2.0" to the rear of the camera
which includes room for the cable's bend radius. The different focal length lenses are larger as
they go up in focal length. This will add to the length of the camera depending on the lens focal
length.
Figure 3 - Camera Dimensions
2. Installation
This section describes everything from removing the camera from the box to how to connect the camera
to external devices.
2.1 Unpacking and Receiving Inspection.
The camera was tested and carefully packed at Cohu Electronics. Upon acceptance by the
carrier, they should assume responsibility for its safe arrival. Should you receive this item in
damaged condition, claims for shipping damage must be filed against the carrier.
To return the camera to the factory for any other service, please contact Cohu Electronics
Customer Service Department for a Return Authorization Number.
2.2 Lens Cleaning.
The lens provided with this Camera has the front lens element diamond carbon coated. Even
though this coating is very tough, the following cleaning procedures should be adhered to. A light
dusting of air should be enough to dislodge most dust particles, although small amounts of dust
should not affect camera performance. If necessary to clean the front surface, use 75% isopropyl
alcohol and a lens tissue. Use a clean section of tissue with each swipe so as to
not drag dirt back on the front lens surface.

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2.3 Electrostatic Discharge (ESD) Precautions.
The installation procedures in this user's manual do not require entry into the Enclosure of the
Camera. However in the event that the camera needs to be opened as directed by Cohu
Electronics , the following ESD precautions should be followed:
 Use a conductive pad on whatever work space used.
 Connect the conductive pad to earth ground through a 1MΩresistor.
 Use a wrist strap connected to earth ground through a 1MΩresistor when working with the
equipment.
 Maintain the relative humidity above 30%. Working on this circuitry with a relative humidity
below 30% requires more extreme ESD precautions not specified in this document.
 Use antistatic bags to store and transport any electronic components or circuit board
assemblies removed from this Camera. Use new antistatic bags as old antistatic bags can
lose their static protection after use.
2.4 Tripod Mounting Interface
The camera has a tripod mounting plate clamped to the bottom of the Camera. The Tripod mount
has five mounting threads (0.250-20UNC-2B) separated as shown in Figure 4. This provides two
center-to-center mountings, being 1.75”and 1”bolt patterns. Insure the mounting arm/fixture
supports one of these mounting bolt patterns.
Figure 4 - Tripod Mounting Locations
2.5 Main Rear Panel Signal Connector
The main signal input/output connector is located on the rear panel of the Camera as shown in
Figure 5.

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Figure 5 - Camera Rear Panel
2.5.1 Camera Main Signal Connector
The main signal connector that is mounted to the rear panel of the Camera is manufactured by
Amphenol and the part number is PT07H-14-18P. This connector is hermetically sealed which
means it is gastight therefore exceeds the NEMA 4 and IP67 water resistance rating of the
Camera. This connector is equipped with 18 contacts. See Table 6 for main signal pin
descriptions.
Table 6 - Main Signal Pin Descriptions
Pin
Number(s) Direction Signal Name Signal Description
G Input Chassis Chassis Ground
U Input AC Line AC Line high side power input. Camera will function on
voltage inputs of 90-250VAC, 47-63Hz.
T Input AC Neutral/24VAC Lo AC Line and 24VAC return (Neutral).
B Input 24VAC Hi 24VAC high side power input. Camera will function on
voltage inputs of 20-28VAC, 47-63Hz.
C Input +12VDC DC Camera positive power input. The Camera can
function on voltage inputs of 11-16VDC.
K Input -12VDC DC Camera power common.
M Input RX+ RS422: Camera receive data positive (+).
N Input RX- RS422: Camera receive data negative (-).
S Output TX+ RS422: Camera transmit data positive (+).
R Output TX- RS422: Camera transmit data negative (-).
P Input Ground Data/Power Ground
L Output Video Video
A Output Video Ground Video Ground

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2.5.2 Mating Rear Panel Connector
The connector that mates with the main signal connector of the Camera is manufactured by
Amphenol and the part number is a PT06A-14-18S-SR. This connector must be manufactured to
the assembly procedure provided by Amphenol.
2.6 Main Rear Panel Digital Signal Connector
The main digital signal connector is located on the rear panel of the Camera as shown in Figure
5.
2.6.1 Camera Digital Signal Connector
The digital signal connector that is mounted to the rear panel of the Camera is manufactured by
fischer and the part number is DBPE 1031 A019-139. This connector is hermetically sealed
which means it is gastight therefore exceeds the NEMA 4 and IP67 water resistance rating of the
Camera. This connector is equipped with 19 contacts. See Table 7 for digital signal pin
descriptions.
Table 7 - Digital Signal Pin Descriptions
Pin
Number(s) Direction Signal Name Signal Description
6 Input ExtClk+ Positive (+) LVDS external clock input.
NTSC: 49.09090 MHz.
PAL: 59.00000 MHz.
7 Input ExtClk- Negative (-) LVDS external clock input.
NTSC: 49.09090 MHz.
PAL: 59.00000 MHz.
8 Input ExtSync+ Positive (+) LVDS external sync input.
9 Input ExtSync- Negative (-) LVDS external sync input.
10 Input ExtClkEn_n External clock enable. This input determines whether
the Camera boots with an external or internal clock.
Low (tied to PGND): external clock, Open: internal
clock.
11 Input PGND Power Ground.
12 Output SprcFpaVid0+ Positive (+) LVDS serialized 16 bit processed FPA
video data bits 0-7.
13 Output SprcFpaVid0- Negative (-) LVDS serialized 16 bit processed FPA
video data bits 0-7.
14 Output SprcFpaVid1+ Positive (+) LVDS serialized 16 bit processed FPA
video data bits 8-15.
15 Output SprcFpaVid1- Negative (-) LVDS serialized 16 bit processed FPA
video data bits 8-15.
16 Output SprcFpaVidSync+ Positive (+) LVDS serialized digital processed FPA
video sync.
17 Output SprcFpaVidSync- Negative (-) LVDS serialized digital processed FPA
video sync.
18 Output SprcFpaVidClk+ Positive (+) LVDS serialized digital processed FPA
video clock.
19 Output SprcFpaVidClk- Negative (-) LVDS serialized digital processed FPA
video clock.

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2.6.2 Mating Digital Signal Connector
The connector that mates with the digital signal connector of the Camera is manufactured by
fischer and the part number is S 1031 A019-150+. All the signals in this connector are Low
Voltage Differential (LVDS) which requires a mating cable that uses 100Ωtwisted pairs. Belden
cable 9808 (7 100Ωtwisted pair with overall foil/braided shield) will work for this application or
any equivalent cable.
This connector requires a mating environmental clamp set sold by fischer to ensure the sealing
between the connector and cable used. See Table 8 for fischer environmental cable clamp part
numbers for corresponding cable diameter ranges. The connector and environmental cable
clamp must be assembled as described on page N2 in the fischer General Catalogue, Edition 5.
Table 8 - Environmental Cable Clamps
Fischer Part Number: Cable Diameter Range (mm)
E3 1031.2/2.7 2.2-2.7mm
E3 1031.2/3.2 2.7-3.2mm
E3 1031.2/3.7 3.2-3.7mm
E3 1031.2/4.2 3.7-4.2mm
E3 1031.2/4.7 4.2-4.7mm
E3 1031.2/5.2 4.7-5.2mm
E3 1031.2/5.7 5.2-5.7mm
E3 1031.2/6.2 5.7-6.2mm
E3 1031.2/6.7 6.2-6.7mm
2.7 Power Input Selection
The camera input power is specified by model configuration when originally ordered from Cohu
Electronics, and is delivered to accept the specified voltage configuration of 120VAC, or 24VAC
or 12VDC. Refer to Table 6 for connector pin assignments.
Cohu Electronics offers a suite of field cable assemblies for providing connections from the
camera to the users control/monitoring system or transmission backbone. Refer to Cohu
Electronics CA290 series data sheet for selection of the proper cable to meet specific
requirements.
2.7.1 AC Line Input Voltage Connections
The Camera is delivered to accept 120VAC or 24VAC Line voltage. If it is determined the
ordered/delivered voltage format of the camera system is not the desired voltage level, the input
voltage can be changed. A connector should be plugged into header J1 or J2 located as shown in
Figure 6 (Figure 6 is drawn without Transformer Support Plate and mating connectors for clarity).
Warning: Never power the Camera up with a connector plugged into headers J1 and J2
simultaneously. This may provide a risk of electric shock on the main rear panel
connector.
2.7.2 24VAC Input Voltage Connections
The Camera can be configured to accept 24VAC instead of AC Line voltage. To accomplish this,
the connector plugged into header J1 should be unplugged. The two position connector that is

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lying inside the Camera must be plugged into header J2 as shown in Figure 6 (Figure 6 is drawn
without Transformer Support Plate and mating connectors for clarity).
Warning: Never power the Camera up with a connector plugged into headers J1 and J2
simultaneously. This may provide a risk of electric shock on the main rear panel
connector.
Figure 6 - Voltage Input Selection
3. Camera Software Features
The Camera is equipped with a multitude of operational and configuration settings. See Table 9 for all
the software features available in this Camera.
Table 9 -Software Features
Camera Software Feature Host Application
Control (C) or
Monitor (M)
Notes
Selection of up to 8 Operational Modes C Configured at factory.
Selection of up to 16 NUC Modes C Configured at factory.
Automatic Refresh on Operational Mode or NUC Mode
Switch C
Automatic Refresh on Camera Boot C
Automatic Refresh on Timer C
Automatic Refresh on Camera Internal Temperature
Change C
Commanded Refresh C
Selection of up to 16 Video Color Palettes C Configured at factory but user can
create custom palettes. Contact

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Camera Software Feature Host Application
Control (C) or
Monitor (M)
Notes
Lumitron for specific information.
Video Color Bar Enable C
Video Polarity Invert C
Video Color Gamma Boost C Gamma boost built into color
palette.
Video Zoom C
Video Freeze C
Video Disable C
Selection of up to 8 Video Overlay Palettes C Configured at factory but user can
create custom palettes. Contact
Lumitron for specific information.
Commanded Overlay Refresh C
Overlay Mode Selection C
Foreground and Background Color Selection C
Two Standard Reticles with Intensity Readout C
One Range Reticle C Designed for use with 100mm lens.
Configured Lens Select C Based on factory configuration.
Focus Control C If hardware is present.
Zoom Control C Not yet implemented.
Sync Mode Selection C
Frame Counter Reset C Resets frame header value.
FPA Temperature M Contact Lumitron for ADC to
temperature equation.
FPA Support Board Temperature M Contact Lumitron for ADC to
temperature equation.
Two Available Internal Remote Temperatures M Contact Lumitron for ADC to
temperature equation.
Calibration Flag Temperature M Contact Lumitron for ADC to
temperature equation.
Fan Mode C
Camera Power M Contact Lumitron for ADC to
voltage equation.
Two (AGC/ALC) Automatic Gain and Level Control Modes C Linear and Histogram equalization.
Can be disabled.
Up to 8 Region of Interest Areas C First ROI reserved for full frame.
AGC/ALC Brightness C Reported in automatic mode, can
be set in manual mode.
AGC/ALC Contrast C Reported in automatic mode, can
be set in manual mode.
AGC/ALC Low and High Limit Settings C
Four AGC/ALC Lag Filter Rates C
Multiple Linear AGC/ALC Mapping Settings C
Automatic NUC Switching Capability C Not yet implemented.
Reticle Size and Position C
Radiometric Capability C/M Requires custom OEM software.
Built-In Tests C
Camera Operation Statistics M
Field Upgradeable Operational Software C Contact Lumitron before upgrading
camera operational software.
Field Upgradeable FPGA Configuration C Contact Lumitron before upgrading
Xilinx FPGA configuration file.
Production and Manufacturing Information C/M Modification of stored
production/manufacturing data
reserved for specific OEM’s.

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Camera Software Feature Host Application
Control (C) or
Monitor (M)
Notes
Static Configuration Data C/M Modification of factory static
configuration data reserved for
specific OEM’s.
Individual Operational Mode Configuration C/M Modification of factory operational
mode data reserved for specific
OEM’s.
Individual NUC Mode Configuration C/M Modification of factory NUC mode
data reserved for specific OEM’s.
Motorola DSP Register Settings C/M Modification of any DSP registers is
not suggested except for advanced
users. Changes may prevent
camera from operating properly.
Xilinx FPGA Register Settings C/M Modification of any FPGA registers
is not suggested except for
advanced users. Changes may
prevent camera from operating
properly.
Access to DSP Memory C/M Read/Write access reserved for
specific OEM’s.
Access to SPI FLASH Memory C/M Read/Write access reserved for
specific OEM’s.
Access to NUC FLASH Memory C/M Read/Write access reserved for
specific OEM’s.
Access to NVM RAM C Camera operational state is stored
in NVM via operational software.
Do not modify directly.
Access to Real Time Clock C
Access to operational software configuration
variables/settings. C Contact Lumitron for specific
information.
4. Environmental Specifications
4.1 Temperature
The storage temperature range is -40ºC to 85 ºC.
The operating temperature range is -40ºC to 60 ºC.
4.2 Water Resistance
The Camera as shipped from factory with Lens meets or exceeds the NEMA4 and IP67 water
resistance rating.
4.3 Relative Humidity
The Camera as shipped from factory with Lens meets a relative humidity of 10% to 95%, non-
condensing.

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4.4 Shock and Vibration
NEMA TS-2 Compliance;
Vibration: 5-30 Hz with 0.5G applied in three perpendicular planes.
Shock: 10G applied in three perpendicular planes
COHU ELECTRONICS WARRANTY
Cohu, Inc., Electronics Division warrants equipment manufactured to be free from defects of material
and workmanship. Any part or parts will be repaired or replaced when proven by Cohu examination to
have been defective within two years from date of shipment to the original purchaser for standard CCD
cameras and one year from date of shipment to the original purchaser for intensified CCD cameras and
all other Cohu manufactured products.
Pressurized Housings: Pressurized camera products include a lifetime pressurization warranty. Cohu
will re-pressurize at no charge returned environmental cameras not exhibiting evidence of physical
damage due to misuse. All warranty repairs will be performed at the factory or as otherwise authorized by
Cohu in writing. Transportation charges to Cohu shall be prepaid by purchaser.
Extended IR Cameras: Cameras utilizing extended infrared (extended IR) sensors found to exceed
acceptable white blemish specifications within one month of delivery shall be repaired without charge.
This warranty does not extend to Cohu equipment subjected to misuse, accident, neglect, improper
application, or repaired or altered by other than Cohu or those authorized by Cohu in writing. Cameras
utilizing extended IR sensors are not warranted for use in areas of elevated levels of cosmic radiation.
Television image pickup tubes, image intensifiers, lenses, and products manufactured by companies
other than Cohu are warranted by the original manufacturer.
This warranty is in lieu of all other warranties, express, implied, or statutory, including warranties of
fitness for a particular purpose and merchantability, and sets forth buyers sole remedy in connection with
such warranties. Cohu, in no event, whether as a result of breach of contract or warranty, tort (including
negligence) or otherwise, shall be liable for any penalties regardless of reason; collateral, consequential,
incidental, or exemplary damages, including without limitation, any loss of profit or revenues, loss of use
of any equipment or goods, or removal or re-installation of equipment without prior written approval.
A Return Authorization (RA) Number must be obtained from Cohu prior to returning any item for
warranty repair or replacement.
4/03 man.