940nm VCSEL Optical Diffuser FOV 110°x90° For 3D Sensing
Coligh manufactures and custom Precision 940nm VCSEL optical diffusers FOV 110°x90° for 3D sensing. We have standard stock for FOV 50°x35° to 120°x90°. Contact us for more detail.
940nm VCSEL Optical Diffuser FOV 110°x90° For 3D Sensing Product Discription
Coligh has developed a 940nm VCSEL optical diffuser specifically designed for 3D sensing and Time-of-Flight (ToF) applications. This beam-shaping component delivers a precise 110° (H) × 90° (V) field of view, homogenizing the output of high-power 940nm VCSEL sources into a flat-top energy distribution; it provides exceptionally uniform flood illumination for structured light, iToF, and dToF cameras. Utilizing a mature POG hybrid micro-nano structure, the component achieves a window efficiency exceeding 60%. It features a thickness of 0.45mm, with dimensions that can be flexibly customized.
940nm VCSEL Optical Diffuser FOV 110°x90° For 3D Sensing Key Features
- We employ nanoimprint lithography on 6-inch and 8-inch wafers to ensure batch FOV and wafer-to-wafer uniformity.
- We offer optimized asymmetric rectangular wide-area spectral imaging with a 110° x 90° viewing angle specifically designed for high-precision 3D sensing.
- We strictly adhere to the 40-20 surface quality inspection standard to improve the system’s signal-to-noise ratio.
- Each shipment includes comprehensive spectral test data, FOV energy distribution profiles, and inspection reports, ensuring full batch traceability.
940nm VCSEL Optical Diffuser FOV 110°x90° For 3D Sensing Product Technical Datasheet
| Item | Specification |
|---|---|
| Field of View (FOV) | H110°*V90° ±5% |
| Pattern Shape | RECTANGULAR |
| Transmission Efficiency | >85% |
| Transmission Range | 400-2000nm |
| Window Efficiency | >60% |
| FOV Calculation Ratio | 10% |
| 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 VCSEL Optical Diffuser FOV 110°x90° For 3D Sensing Applications
3D Facial Recognition
3D facial recognition door locks and payment terminals must accommodate users ranging from children (1.2m tall) to adults (1.9m tall) and support unlocking from side angles. Conventional vertical fields of view (FOV) of 70–85° often result in missed detections; however, a 110°×90° ultra-wide-angle rectangular light field ensures full illumination regardless of the user’s standing position or height. A 940nm VCSEL with an optical diffuser providing a 110°×90° FOV can be integrated into smart locks or payment terminals to evenly illuminate the user’s face and torso.
AR/VR Indoor Hand Tracking
AR/VR devices require hand-tracking capabilities for interaction. A 110°×90° FOV aligns with the range of binocular stereo vision and hand interaction zones, ensuring all movements are captured. By using a VCSEL paired with a diffuser to emit speckle-free flood illumination across a 110°×90° area, the system provides broad visual coverage of the user’s movements.
Industrial 3D Measurement
In logistics sorting and warehousing, irregularly shaped packages can hinder sorting processes when using traditional narrow-angle systems. The uniform area illumination provided by a 110°×90° diffuser allows for volume measurement without requiring packages to be centered or manually reoriented, thereby reducing billing disputes.
