MCPA351-940 imaging 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 imaging lens products, achieves true free-form surfaces, achieves multi-lens imaging effects with a single lens, makes its volume more compact, and eliminates the need for axis alignment between lenses. At the same time, imaging metalens have a small chief ray angle, which can still obtain higher relative illumination when the sensor does not have a micro lens. Imaging metalens have a smaller f number and a larger aperture to receive signal light, thereby improving the efficiency of the entire imaging system or sensing system.
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.
| Parameter | Value | Unit |
|---|---|---|
| Sensor pixels | 8 × 8 | Pixels |
| Pixel size | 59.4 × 59.4 | μm |
| Wavelength | 940 | nm |
| Effective focal length | 0.627NOTE 1 | mm |
| Back focal length | 0.7 | mm |
| Horizontal FOV | 45 | ° |
| Vertical FOV | 45 | ° |
| Diagonal FOV | 66 | ° |
| Circle diameter | 0.674 | mm |
| MTF@Nyq/2 (8lp/mm) | ||
| Center Field of View-S | 0.95 | |
| 0.7 field of view-s | 0.907 | |
| F# | 1.4 | |
| SMIA TV Aberration | -12% | |
| Relative illumination | @ Side 0.83, @ Corner 0.67 | |
| Chief ray angle | -0.35 | ° |
| Total optical length | 1.525 | mm |
| IR filter bandwidth | 30 | nm |
| IR filter thickness | 0.3 | mm |
| Operating temperature | -40~125 | °C |
The following is real-life imaging picture of the imaging metalens:
The size information of the supporting holder structure to measure and evaluate the above imaging is as follows:
Figure 6-1: MCPA351-940 Holder Structure Information
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