Directional photodetector and optical sensor arrangement
US11367804B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/413
Abstract
A directional photodetector comprises a photosensitive element and a light selector. The photosensitive element comprises a single-photon avalanche diode, SPAD, or an array of SPADs or SPAD array. The light selector is arranged on or above the photosensitive element, in particular on or above an active surface of the photosensitive element. The light selector is configured to restrict a field of view of the photosensitive element at least for light with a wavelength within a specified wavelength range. The light selector is configured to restrict the field of view by predominantly passing light with a direction of incidence within a range of passing directions of the light selector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.