Teledyne FLIR Tau 2 640 x 512 Lensless – LWIR Thermal Imaging Camera Core
Teledyne FLIR has announced the end of life (EOL) for all Tau 2 and Tau 2+ longwave infrared (LWIR) imaging camera modules.
Part numbers starting with 46640001, 47640001, and 48640001.
The size, weight, and power (SWaP) optimized Boson is the recommended replacement LWIR camera module.
Sales on this product end on Jun 30, 2025
- 640 x 512 Pixels
- Lensless Version
- Frame Rate: Fast 30Hz or Slow <9Hz Available
- 17μm Pixel Pitch
- 72 Grams
- LWIR
Performance Grade <50mK NEDT SKU:46640001X-FPNLX – $6813.00
Industrial Grade <30mK NEDT SKU:46640001X-FINLX – $8096.00
Interfaces and Accessories sold separately.
Tau™ 2
LONGWAVE INFRARED THERMAL CAMERA CORE
Made in USA, the Tau® 2 OEM thermal imaging cameras offer an unmatched combination of features and reliability, making them well-suited for demanding applications including unmanned vehicles, thermal sights, and handheld imagers. Improved electronics provide powerful image processing modes that dramatically improve detail and contrast through continuous histogram equalization. Radiometry is available in every pixel for both 640 × 512 and 336 × 256 resolutions and all three camera grade levels. All Tau 2 configurations share electrical, mechanical, and optical interfaces allowing integrations to be designed that work seamlessly with all formats. Available in Commercial, Performance, and Industrial variants, each with unique sensitivity and pixel operability thresholds to meet operational requirements. Radiometry is an optional feature for Performance-grade cameras, and standard feature with Industrial-grade. All Tau 2 configurations and resolutions share electrical, mechanical, and optical interfaces allowing integrations to be designed that work seamlessly with all formats.

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.
ACCURATE TEMPERATURE MEASUREMENT
Supports radiometry, analytics and telemetry
• TLinear output places temperature data in each pixel
• Adjustable isotherm thresholds colorize temperatures of interest
• Rugged and reliable in all terrain
IMPROVED IMAGE PROCESSING
For clearer imagery, edge sharpening, and contrast
• Second generation Digital Detail Enhancement (DDE)
• Active Contrast Enhancement (ACE)
• Smart Scene Optimization (SSO)
• Information Based HEQ (IBHEQ) automatically adjusts AGC
• Silent Shutterless NUC for continuous image improvement
COMMON FEATURES ACROSS MODELS
Fosters improved OEM integration
• 640, 336 and 324 resolutions
• Multiple lens and FOV options
• 60Hz or 30mK frame rates
• Mechanical / electrical compatibility
• FLIR brand and support
Color Palette Comparison (30Hz)
Color Palette Comparison (7.5Hz)
FLIR Tau 2 Features
FLIR Tau 2 336 Thermal Imaging Camera Core LWIR Uncooled Thermal Imaging Cameras offer an unmatched set of features such as radiometry, increased sensitivity (<30mK), frame rates, and powerful image processing modes. Some key features include:
- 336 x 256 Pixels
- 30Hz Frame Rate
- 2x and 4x Continuous Digital Zoom
- Multiple Color Palette Function
- Remote Control via TTL
- Improved Image Processing
- Customizable Splash Screen
- 1 Year Manufacturer Warranty
- Exportable to Most Countries License Free
FLIR Tau 2 for OEM Applications
Since the electrical functions are common between the Tau 2 640 and 336, integrators have direct compatibility between the different camera formats, and Tau 2 camera versions share many of the same lens options. Making them well-suited for demanding applications like:
- UAV & UGV Systems
- Component Analysis
- OEM Handheld Imagers
- Nighttime Navigation
- Security Systems
- Electrical Inspection
- Aerial Photography
FLIR Tau 2 Out of the Box Video
(with VPC Module Kit)
FLIR Tau Distance Chart
Digital Detail Enhancement | |
---|---|
Spectral Band | |
Input Voltage | |
Discrete I/O Controls Available | |
Analog Video Display Format | |
Advanced Radiometry | |
Precision Mounting Holes | |
Factory Optimized Video | |
Dynamic Range Switching | |
BT656 (8-bit) Digital Output(s) | |
Power Dissipation [steady state] | |
Certifications | |
Operational Altitude | |
External Sync Input/Output | |
CMOS (14-bit or 8-bit) | |
Lens Mounts | |
Operating Temperature Range |
-40°C to +80°C (Industrial & Performance) -20°C to +65°C (Commercial) |
Scene Range [high gain] | |
Scene Range [low gain] | |
Flat-Field Correction (FFC) Duration | |
Color and Monochrome Palettes (LUTs) | |
Humidity (Operating and Storage) | |
FPA & Digital Video Display Formats | |
Spot Meter | |
Primary Electrical Connector | |
RoHS | |
Image Optimization | |
RS-232 Compatible Communication | |
Pixel Pitch | |
Settable Splash Screens | |
Temperature Shock | |
Sensitivity/NEdT | |
Detector Type 2 | |
Shock | |
User Configurability via SDK & GUI | |
Weight | |
Vibration | |
Lensed & Lensless Configurations Available | |
LVDS (14-bit or 8-bit) | |
Polarity Control [black hot & white hot] | |
Dimensions (L x W x H) |
1.75" x 1.75" x 1.18"/ 1.5" x 1.5" x 1.18" (Compact and Shutterless) |
Slow Video Option [factory configured] | |
Symbology | |
Time to Image | |
Invert/Revert (analog and 8-bit digital) | |
Camera Link (Expansion Bus Accessory Module) | |
Continuous Digital Zoom | |
Diameter | |
Sealable Bulkhead Mounting Feature | |
Field of View | |
Focal Length |