1. Introduction
The Iray M3L6 6.9mm Observation Radiometric Thermal Imaging Module is a compact and versatile device designed for various thermal imaging applications. This module is suitable for miniaturized handheld devices, enhanced night vision goggles (ENVG), unmanned aerial vehicles (UAVs), and Advanced Driving Assistant Systems (ADAS). It provides a comprehensive thermal imagery solution and can be utilized in industrial temperature measurement, electric power temperature measurement, security measurement, machine vision, and other specialized fields.

2. Setup and Connections
2.1 Physical Overview
The Iray M3L6 module features a compact design with visible circuit board components and a lens assembly. Ensure careful handling during installation to avoid damage to sensitive parts.



2.2 Dimensions
The module has a compact form factor. Refer to the diagrams below for precise measurements.


2.3 Power Supply and Interfaces
The module supports various power supply options and communication interfaces. The power supply and interface descriptions apply only to the factory state without extended components. For detailed functions of extended components, refer to the User Extended Components Manual.
| Category | Parameter | Value |
|---|---|---|
| Power Supply | Power Supply Range | 3.8~5.2VDC / 1.8V / 3.3V |
| Typical Power Consumption @25°C | ≤0.50W (for some configurations), ≤0.40W (for others) | |
| Interfaces | Digital Video | 14Bit LVCMOS |
| Progressive BT.656/BT.1120 | ||
| CDS2/CDS3 | ||
| 2lane MIPI(Raw8) | ||
| Serial Communication Interfaces | UART (1.8V) |
The module is available in different configurations, each with specific interfaces:

| Model | Main Interface/Function | Fit Module |
|---|---|---|
| TLX00V100F014C | Power supply via USB, typical voltage 5 VDC. Communication via USB. Video via USB 2.0. | 640 / 640 Radiometric |
| TLX02V100F022C | Power supply via USB, typical voltage 5 VDC. Communication via USB. Video via USB 2.0. | 640 / 640 Radiometric |
| TLX02V100F023 | Typical voltage 5VDC. Communication via RS232 by default. Analog video (PAL). | 640/640 Radiometric |
3. Operating Instructions
3.1 Image Adjustment
The module offers several image adjustment features to optimize thermal output:
| Parameter | Setting Options |
|---|---|
| Brightness & Contrast Adjustment | Manual/Auto |
| Polarity | Black-hot/white-hot |
| Color Palettes | Support (Note: Unavailable for LVCMOS) |
| Image Processing | Temperature control algorithm (w/o TEC) |
| DNR (Digital Noise Reduction) | |
| DDE (Digital Detail Enhancement) | |
| Histogram equalization | |
| Image Mirror | Left-right/Up-down/Diagonal |
| External Sync | 10~50Hz, rising edge trigger |
3.2 Radiometric Function
The radiometric version of the module is capable of temperature measurement. Ensure the module is configured correctly for radiometric operation to utilize this feature. The operating temperature range for radiometric function is -20°C to +60°C.
4. Maintenance
To ensure the longevity and optimal performance of your Iray M3L6 module, follow these general maintenance guidelines:
- Cleaning: Gently clean the lens and module exterior with a soft, lint-free cloth. Avoid using abrasive materials or harsh chemical cleaners that could damage the lens coating or housing.
- Storage: When not in use, store the module within its specified storage temperature range of -45°C to +85°C. Keep it in a dry environment with humidity between 5-95% (non-condensing).
- Handling: Handle the module with care to prevent physical shock or vibration beyond its specified limits.
5. Troubleshooting
If you encounter issues with your Iray M3L6 module, consider the following basic troubleshooting steps:
- No Power: Verify that the power supply is within the specified range (3.8~5.2VDC / 1.8V / 3.3V) and all connections are secure.
- No Video Output: Check the video interface connections (USB Type C for digital, 12Pin for analog CVBS). Ensure the correct video output mode is selected in your receiving device.
- Image Quality Issues: Adjust brightness, contrast, and polarity settings. Ensure the lens is clean and free from obstructions.
- Radiometric Inaccuracy: Ensure the module is operating within the radiometric function's specified temperature range (-20°C to +60°C).
For issues related to extended components or more complex problems, please refer to the User Extended Components Manual or contact technical support.
6. Specifications
6.1 Performance Index
| Parameter | 640 Version | 640 (Radiometric) Version |
|---|---|---|
| Detector Type | VOx Uncooled IRFPA | |
| Resolution | 640×512 | |
| Pixel Pitch | 12µm | |
| Frame Rate | 50Hz | 25Hz |
| Spectral Range | 8~14µm | |
| NETD | ≤50mK@25°C, F#1.0 | |
6.2 Lens Options and Field of View (FOV)
| E.F.L./F# | Focus Type | FOV (H×V) | IFOV |
|---|---|---|---|
| 4.1mmF1.2 | Athermalized | 100°×82° | 2.93mrad |
| 6.9mmF1.0 | 62.9°×50.4° | 1.74mrad | |
| 9.1mmF1.0 | 48.1°×38.4° | 1.32mrad | |
| 13mmF1.2 | 33.5°×26.9° | 0.92mrad | |
| 25mmF1.2 | 17.5°×14° | 0.48mrad | |
| 45mmF1.2 | 9.7°×7.8° | 0.27mrad |

6.3 Temperature Measurement Performance
| Parameter | Value |
|---|---|
| Temperature Measurement Range | -20°C ~ +150°C, 100°C ~ +650°C |
| Accuracy | ±3°C or ±3% of reading (whichever is larger), ±2°C optional |
6.4 Physical Properties (W/o lens & Expansion component)
| Parameter | Value |
|---|---|
| Weight | 8g |
| Size | 21mm × 21mm |
6.5 Environmental Adaptation
| Parameter | Value |
|---|---|
| Operating Temperature Range | -40°C ~ +80°C (-20°C ~ +60°C for radiometric function) |
| Storage Temperature Range | -45°C ~ +85°C |
| Humidity | 5~95%, no condensation |
| Vibration | 6.06g, random vibration, all axial |
| Shock | 80, 4ms, trailing edge sawtooth wave, 3-axis 6-direction |
6.6 Compatible Camera Modules
| Module Type | Models |
|---|---|
| Long wave non cooling modules | Silence(S)4, Micro III S, Micro III Lite, FTI S, P2, Mini256/383/640, G1-1280, FT1384/640/1024/1280, Tiny 1-C, ELF1, ELF3, LGCS121/LGC7121, LGC6122, LGC6122PRO, T1ET3, S0 |
| Medium wave cooling modules | FX640L, FX640E, GENE640S, GENE640M |
| Short wave cooling modules | Prober -GEJS615B |
7. User Tips
- Software Integration: For optimal performance and access to advanced features, ensure you are using the latest software development kit (SDK) or drivers provided by the manufacturer for your specific application.
- Environmental Considerations: While robust, operating the module at the extremes of its temperature range for prolonged periods may affect performance. Consider environmental controls for critical applications.
- Calibration: For precise temperature measurements, periodic calibration may be necessary depending on the application and environmental conditions.
8. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase records handy when seeking support.





