Dot Projectors
Record-performing single-surface metalens
Single-surface 2-in-1 dot projector for driver monitoring and depth-sensing.
Precise dot patterns
Our single-surface metalens combines collimation and fan-out functions, hence the name "2-in-1 optic". The use of a single surface not only streamlines the module design but also enables an exceptionally compact dot-projector modules. These projectors boast over 70% efficiency, less than 10% dot uniformity error, and high contrast ratios exceeding 40:1.
Demonstrated dot projection examples
70º x 40º
| FOI (º) | 70 x 40 |
| Tiling | 3x3 |
| Spots | 2,952 |
| Efficiency (%) | 82.9 |
| Uniformity Error (%) | 8.5 |
| Contrast ratio | 60:1 |
70º x 70º
| FOI (º) | 70 x 70 |
| Tiling | 5x3 |
| Spots | 4,875 |
| Efficiency (%) | 73.9 |
| Uniformity Error (%) | 5.1 |
| Contrast ratio | 42:1 |
144º x 70º
| FOI (º) | 144 x 70 |
| Tiling | 5x5 |
| Spots | 8,125 |
| Efficiency (%) | 67.1 |
| Uniformity Error (%) | 20.9 |
| Contrast ratio | 41:1 |
Custom dot projectors
We design, prototype and manufacture to specification:
Dot projection designed for stand alone, or to be used with external collimator
Design freedom to match desired FoI with perfect N x M tiling
Single-surface allows for extreme miniaturization of optical system
Extreme FOI possible
Dot projectors can be designed both for collimated as well as divergent light sources with a high number of possible use cases