940nm Polymer on Glass Diffuser FOV 110°x80° For LiDAR & ToF Optics
Coligh is specialized in custom and manufacturing Industrial-grade 940nm Polymer on Glass (POG) diffusers for LiDAR and 3D ToF. We have standard diffuser varies from FOV  50°x35° to 120°x90°. Contact us for more detail.
940nm Polymer on Glass Diffuser FOV 110°x80° Product Discription
This 940nm POG diffuser, independently designed and manufactured by Coligh, is specifically developed for high-power LiDAR and 3D ToF applications. It shapes the output from a VCSEL light source into a 110° x 80° rectangular beam, ensuring high-precision coverage of the illuminated area. Utilizing POG micro-nano fabrication technology, the diffuser is suitable for use in industrial AGV navigation radar, obstacle avoidance and SLAM systems for service robots, and solid-state LiDAR.
940nm Polymer on Glass Diffuser FOV 110°x80° Key Features
- POG technology combines the stability and high laser damage threshold of glass substrates with the micro/nano-structural precision of polymers, enabling operation at high temperatures.
- This diffuser shaping element features a thickness of 0.45 ± 0.05 mm—a slim profile suited to the requirements of AR/VR devices and smartphone Face ID systems.
- We offer customization services such as fine-tuning the field of view (FOV), customizing substrate thickness, and precision shape cutting.
940nm VCSEL Optical Diffuser FOV 110°x90° For 3D Sensing Product Technical Datasheet
| Item | Specification |
|---|---|
| Field of View (FOV) | H110°*V80° ±5% |
| Pattern Shape | RECTANGULAR |
| Transmission Efficiency | >85% |
| Transmission Range | 400-2000nm |
| Window Efficiency | >60% |
| FOV Calculation Ratio | 30% |
| Light Source | VCSEL |
| Wavelength | 940 nm |
| Thickness | 0.45 ± 0.05 mm |
| Material | POG |
VCSEL Diffuser Coligh Custom Capability
| Custom Item | Custom Capability |
|---|---|
| Working Wavelength | 850nm , 905nm , 980nm, 1064nm available |
| FOV Angle | 10° ~ 140° customizable |
| Beam Shape | Square , Circle , Freeform, Rectangle |
| Light Distribution | Gaussian , Flat-top |
| VCSEL Array Type | Single emitter or Multi-zone VCSEL |
| Diffuser Technology | DOE / MLA / Hybrid structure/Engineered diffuser |
| Optical Efficiency | Standard >60% >65% or custom |
| Thickness | 0.2~5mm |
| Substrate Material | Polymer and glass |
| AR Coating | No coating or with coating |
| Packaging | Bare diffuser |
940nm Polymer on Glass Diffuser FOV 110°x80° Applications
Industrial Radar
Solid-state and hybrid solid-state LiDAR systems utilize wide-field-of-view flood illumination combined with SPAD/SiPM arrays to achieve fully solid-state scanning. Integrating this diffuser into the LiDAR transmitter module allows the 110° × 80° field of view to precisely meet forward-facing detection requirements.
Industrial AGV/AMR Autonomous Navigation and Obstacle Avoidance (ToF)
Industrial AGVs and Autonomous Mobile Robots (AMRs) require real-time detection of ground obstacles, overhead pipes, forklift tines, and personnel suddenly approaching while moving at high speeds. The diffuser is assembled onto the transmitter of the robot’s forward-facing ToF depth camera, which is mounted in the center-front section of the vehicle body. Light emitted from the VCSEL passes through the diffuser to create a 110° × 80° flat-top flood pattern, uniformly illuminating the travel path and the areas on both sides.
Security and Surveillance 3D Sensing
In smart transportation applications, long-range 3D depth sensing requires coverage of multiple traffic lanes or expansive plazas. A single unit with a 110° × 80° field of view can cover a typical four-lane intersection (two-way traffic) or a large entrance/exit plaza, while the flat-top beam profile ensures consistent brightness for both distant and nearby targets.
