Optical sensor
US10139252B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2015 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Oct 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/34707
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor including a light-emitting element, four light-receiving elements facing the light-emitting element, and a substrate at which the light-emitting element and the light-receiving elements are provided. The substrate includes a first portion at which the light-emitting element is provided and a second portion at which the light-receiving elements are provided, the first portion and the second portion being integrated. Respective distances from the four light-receiving elements to one point on a predetermined plane are equal, four line segments that connect the one point and centers of respective light-receiving regions of the four light-receiving elements form right angles with each other, and a normal line of the predetermined plane that passes through the one point passes through an emission point of the light of the light-emitting element or a center of an emission surface of the light of the light-emitting element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.