Longwave Infrared Thermal Camera Core

Tau™ 2

Model: Tau 640, 7.5 mm f/1.2, 90°
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Tau® 2 thermal imaging cameras offer an unmatched set of features, making them well-suited for demanding applications like Unmanned Airborne Vehicles (UAVs), thermal sights, and handheld imagers. Improved electronics provide powerful image processing modes that dramatically improve detail and contrast. Its options include full radiometry, increased sensitivity (<30mK), and 640/60Hz frame rates. Since the Tau 2 640 and 336 configurations share electrical functions, common integrations can be designed that work seamlessly with both formats.

The World's Most Popular Thermal Camera Core

  • Loaded with Features; Ready for More

    Advanced electronics and image processing give Tau an unprecedented feature set, and make it ready for your next big idea.

  • Powerful Imaging Provides Expanded Capability

    Tau 2's expanded capability ensures accurate temperature measurement for radiometry, analytics and telemetry.

  • Information-Based Histogram Equalization (HEQ)

    HEQ automatically adjusts image contrast to let you see what matters most in a scene, and give you the image detail that makes a difference.

Specifications
Overview
Exportable Frame Rates
30/60 Hz (NTSC) 25/50 Hz (PAL)
Factory Optimized Video
Yes
Pixel Pitch
17 µm
Scene Range [high gain]
-25°C to +135°C
Scene Range [low gain]
-40°C to +550°C
Sealable Bulkhead Mounting Feature
Yes
Size (w/o lens)
1.75" x 1.75" x 1.18"/ 1.5" x 1.5" x 1.18" (Compact and Shutterless)
Spectral Band
7.5 - 13.5 µm
Spot Meter
Temperatures measured in central 4×4
Thermal Imager
Uncooled VOx Microbolometer
Weight
72g
Precision Mounting Holes [M2x0.4] on 3 sides [2 per side]
Yes
Connections & Communications
Discrete I/O Controls Available
Yes (10-camera minimum)
Dynamic Range Switching
Yes
External Sync Input/Output
Yes
Flat-Field Correction (FFC) Duration
<0.5 sec
Primary Electrical Connector
50-pin Hirose
RS-232 Compatible Communication
57,600 & 921,600 baud
Settable Splash Screens
Yes (10-camera minimum)
User Configurability via SDK & GUI
Yes
Environmental & Approvals
Humidity
5% - 95% non-condensing
Operating Temperature Range
-40°C to +80°C (Industrial & Performance) -20°C to +65°C (Commercial)
Operational Altitude
+40,000 feet
RoHS
Compliant
Shock
200g shock pulse w/ 11 msec sawtooth
Temperature Shock
5°/min
Vibration
4.3g three axis, 8 hr each
Imaging & Optical
Analog Video Display Format
640 × 480 (NTSC); 640 × 512 (PAL)
BT656 (8-bit)
Yes
CMOS (14-bit or 8-bit)
Yes
Color and Monochrome Palettes (LUTs)
Yes
Digital Detail Enhancement
Yes
Field of View
90° x 69° 2.267 mr
FPA - Digital Video Display Format
640 x 512
Hyperfocal Depth of Field
0.6m
Hyperfocal Distance
1.2m
Image Optimization
Yes
Lens Mount
M24x0.5 inside thread; M29x1.0 outside thread
Lensed & Lensless Configurations Available
Yes
LVDS (14-bit or 8-bit)
Yes
Minimum Focus Distance
2.5cm
NTSC/PAL (field switchable)
Yes
Polarity Control [black hot & white hot]
Yes
Sensitivity [NEdT]
Industrial: <30mK Performance: <50 mK Commercial: <60mK
Slow Video Option [factory configured]
Yes
Symbology
Yes, single-pixel resolution (256 gray and 256 color)
Time to Image
<5.0 sec
Invert/Revert (analog and 8-bit digital)
Yes
Camera Link (Expansion Bus Accessory Module)
Yes
Continuous Digital Zoom
2x- 8x
Diameter
29mm
Length
8mm
Power
Input Supply Voltage
4.0 - 6.0 VDC
Power Dissipation [steady state]
<1.2 W
Power Reduction Switch [disables analog video]
Yes
Radiometry
Advanced Radiometry
Improved accuracy, moveable spot meter, image metric data, T-Linear (digital output) AR requires a separate calibration that must be performed during camera manufacture. The AR capability is captured in the camera part number. An additional fee is charged for this feature.

Export Restrictions

The information contained in this page pertains to a dual use product controlled for export by the Export Administration Regulations (EAR). Diversion contrary to US law is prohibited. US Department of Commerce authorization is not required prior to export or transfer to foreign persons or parties unless otherwise prohibited.

Tau™ 2 - Model: Tau 640, 7.5 mm f/1.2, 90°

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