Description and Application
The light beam emitted by the VCSEL laser is collimated by a collimating lens, forming a light dot matrix with the same arrangement as on the VCSEL. This dot matrix is then replicated and tiled into a speckle pattern with a larger angle by the DOE. Subsequently, an infrared sensor captures the speckle information, and the depth information of the surrounding objects is calculated using a displacement algorithm.
By using differential welding, a dot pattern with higher randomness can be achieved.
| Features ①High Randomness of Dots ②High Uniformity ③Dense Dot | Applications ①Face Recognization ②Industrial Inspection ③Security Monitoring |
Parameters
| Typical Splicing Methods | 5×7 / 9×11 / 9×12 |
| Misaligned splicing volume | 1/2 / 1/4 / 1/8 |
| Luminous efficiency | ≥92% |
| Diffraction efficiency | ≥65% |
| Uniformity error[(max-min)/(max+min)] | <40％ |
| Substrate material | POG/Fused Silica/Plastic |
| Plating | ITO/AR Coating |
