

1.7mm M12 TOF lens with 147° FOV, F1.3 aperture, 640×480 resolution support and 940nm band pass filter for compact depth-sensing and 3D imaging systems.
S01714012013IRB9 is 1.7mm Wide-Angle TOF lens with 940nm bandpass filter, 1/4″ 147° M12 mount, F1.3 aperture, for 3D scanning, tracking, and positioning.
| IMAGE FORMAT | Max Φ4.9, 1/4″ |
| FOCAL LENGTH | 1.7mm |
| F.O.V. ( KW33000) | 147°(D) |
| 120°(H) | |
| 91°(V) | |
| DISTORTION | <-59% |
| RESOLUTION | 640*480 (5.6μm) |
| APERTURE | F1.3 |
| MOUNT | M12X0.5 |
| IRIS | Fixed |
| FOCUS | Manual |
| ZOOM | Fixed |
| B.F.L. | 3.4mm |
| C.R.A. | <13.5° |
| CONSTRUCTION | With 940nm band pass filter |
This 1.7mm M12 TOF Lens is designed for compact time-of-flight depth sensing systems, combining a 147° diagonal field of view with a 940nm band pass filter. Its F1.3 aperture and 1/4″ image format support efficient near-field and wide-area depth imaging with 640×480 resolution.
The primary advantage of this M12 TOF Lens is its combination of wide-angle coverage and wavelength-specific filtering. With 147° diagonal, 120° horizontal, and 91° vertical FOV, the 1.7mm optical design can capture a broad scene from a compact sensor position, making it suitable for depth cameras and 3D sensing modules where coverage is more important than conventional image geometry.
The integrated 940nm band pass filter is particularly important for TOF applications. Instead of treating this lens as a conventional visible-light machine vision lens, the optical configuration is intended to work with active infrared illumination around 940nm. The filter helps define the wavelength range reaching the sensor and can therefore be considered when designing a dedicated TOF optical module.
Designed for 940nm TOF depth-sensing applications.
For system designers developing a compact depth camera, the M12 × 0.5 mount, 3.4mm BFL, and 4.9mm maximum image format provide useful mechanical constraints for module integration. The fixed 1.7mm focal length also keeps the optical configuration simple and predictable once the camera position has been established.
1. 3D Depth Cameras
The 147° diagonal FOV allows a TOF camera to observe a broad area from a relatively short distance. This can be useful for depth perception, spatial measurement, and scene mapping systems.
2. Indoor 3D Sensing
The wide horizontal FOV of 120° is suitable for compact depth-sensing devices that need to cover a large portion of an indoor scene without using a mechanically adjustable optical system.
3. Human Presence and Spatial Detection
A wide-angle TOF optical configuration can support systems that detect people, objects, or spatial changes across a broad sensing area. The 940nm filter makes this lens specifically relevant to active infrared sensing architectures.
4. Robotics Depth Perception
The compact M12 package can be integrated into robotic sensing modules where wide-area depth information is required from a relatively small optical assembly. For broader robotics optical requirements, see the Robotics Vision solution.
5. 3D Sensing and Gesture Detection
The combination of wide FOV and 940nm filtering can be considered for depth-based interaction, gesture recognition, and spatial monitoring systems.
| Device / System | Optical Value |
|---|---|
| 940nm TOF Camera | Matches the specified 940nm band pass configuration |
| 3D Depth Camera | 147° diagonal FOV provides broad scene coverage |
| TOF Sensor Module | M12 × 0.5 supports compact optical integration |
| Indoor Depth Sensing Device | 120° horizontal FOV supports wide-area sensing |
| Robotics Depth Module | Compact lens design suits embedded depth perception |
| 3D Presence Detection System | Wide-angle optical coverage supports spatial detection |
| Gesture / Spatial Sensing Module | Fixed 1.7mm focal length provides predictable coverage |
For additional information about the product family, explore the TOF Lens product category and TOWIN’s TOF Lens solution.
The 1.7mm focal length and <-59% distortion indicate that this lens is optimized for extremely wide-area coverage rather than conventional rectilinear image reproduction. For TOF systems, this can be advantageous when the priority is capturing a large sensing region within a compact module.
The F1.3 aperture provides a relatively fast optical configuration, which is relevant to active infrared systems because the amount of usable optical energy reaching the sensor directly affects the overall sensing architecture.
The CRA <13.5° specification is another important consideration when matching the lens to the TOF image sensor. Sensor-lens compatibility should be checked at the module design stage, together with sensor active area, illumination wavelength, mechanical clearance, and required sensing distance.
For engineers evaluating these parameters, TOWIN’s Optical Design resources can provide additional background for lens integration.
Q: What type of sensor is this 1.7mm lens designed for?
A: It is designed for TOF depth-sensing systems using a 1/4″ image format and 640×480 resolution with 5.6μm pixel size.
Q: Why does this TOF lens use a 940nm band pass filter?
A: The 940nm band pass filter is intended for TOF systems operating around 940nm active infrared illumination. It makes the lens specifically suited to wavelength-selective depth-sensing applications.
Q: What is the field of view of the 1.7mm M12 TOF Lens?
A: The specified FOV is 147° diagonal, 120° horizontal, and 91° vertical, providing broad coverage for depth-sensing applications.
Q: Is this lens suitable for conventional visible-light cameras?
A: The optical design is primarily intended for TOF and 940nm infrared sensing. Because it includes a 940nm band pass filter, it should be evaluated as a dedicated TOF optical component rather than a conventional visible-light camera lens.
Q: Is the focal length adjustable?
A: No. The focal length is fixed at 1.7mm and the zoom specification is fixed, providing a stable optical configuration for a designed TOF module.
Q: What is the mounting interface?
A: The lens uses an M12 × 0.5 mount, making it suitable for compact camera modules and embedded TOF sensor assemblies. See the M12 Lenses product range for other M12 optical configurations.
Q: What is the aperture of this TOF lens?
A: Featuring a fixed F1.3 aperture, this fast‑aperture lens suits active‑IR depth‑sensing systems where high optical throughput is critical.
Q: Can TOWIN customize this type of TOF lens?
A: TOWIN can evaluate custom optical requirements including focal length, FOV, sensor format, wavelength filtering, mechanical dimensions and mounting configuration. Contact TOWIN through the Lens inquiry page for project-specific requirements.
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