MCPD359-940 dot projector metalens uses advanced metasurface technology and semiconductor lithography technology, based on Si material and Schott glass substrates, this revolutionary product provides a series of key advantages.
Metasurface technology grants higher design freedom, redefines lens products, optimizes designs according to the requirements of spot distribution, and uses corresponding free-form surface design solutions. Metalens has advantages of small size, making the packaged volume of metalens and light sources more compact. Metasurface technology grants higher design freedom, redefines beam of light shaping products, makes light spots more uniform, efficient, and compact. The random dot matrix shaper is realized with a single lens, eliminating the need for complex optical architecture. This not only simplifies assembly time and cost, but also reduces errors introduced during assembly, improving overall performance.
Thanks to the semiconductor lithography process, the product has excellent performance in consistency. In addition, the product has high thermal stability, and can withstand reflow soldering, which greatly facilitates further assembly.
| Device parameters | |
|---|---|
| Model | MCPD359-940 |
| Material | Si, SiO2 |
| Length and width | 2.6mm × 2.6mm |
| Thickness | 0.775mm |
| Active area diameter | 2.3mm |
| Output of light spot shape | Ramdom dot matrix |
| Dot number (Single hole Vcsel) | 5 x 9 |
| Divergence angle (Internal FOI) | 60.3° x 73.4° |
| Divergence angle (Enternal FOI) | 77.5° x 87.4° |
| Light spot divergence angle | 0.18° |
| Geometric distortion | 32% |
| Total efficiency | 60% |
| Average contrast | 37:1 |
| Non-uniformity | 14% |
| The distance from the light source face to the metalens | 3.012mm |
| Operating temperature range | -40°C~105°C |
| Storage temperature range | -40°C~125°C |
A VCSEL light source is used to assess the optical performance of the MCPD359-940 dot projector metalens.
The evaluation setup is shown in the figure below：
| Input of light source | |
|---|---|
| Type | VCSEL |
| Wavelength | 940nm |
| Divergence angle | 20° |
| Emission Aperture spacing | 22um |
| Number of Emission Aperture | 391 |
| Output light spot | |
|---|---|
| Shape | Radom dot matrix |
| Divergence angle (Internal) | 59˚ x 74˚ |
| Divergence angle (External) | 76˚ x 86˚ |
| Light spot divergence angle | 0.2° |
| Geometric distortion | 27% |
| Total efficiency | 60% |
| Average contrast | 39.2:1 |
| Non-uniformity | 10% |
| The distance from the light source face to the metalens | 3.012mm (AA) |
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