Light reception device and distance measurement module
US11378659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2019 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Jul 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present technology relates to a light reception device and a distance measurement module. The light reception device includes an on-chip lens, a wiring layer, and a semiconductor layer between the on-chip lens and the wiring layer. The semiconductor layer includes a first tap to which a first voltage is applied and a first charge detection portion, and a second tap to which a second voltage different from the first voltage is applied and a second charge detection portion. The position of the on-chip lens differs depending upon an in-plane position of a pixel array section, so that an optical path length or a DC contrast of a chief ray from an object is uniform at in-plane pixels of the pixel array section. The present technology can be applied, for example, to a light reception device that generates distance information, for example, by a ToF method, and so forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.