Optical distance measuring sensor and electronic device
US7995189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2009 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/481
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical distance measuring sensor includes a light receiving element arranged on the same plane as a light emitting element. The light receiving element includes a light receiving unit having a plurality of cells and collecting the light emitted from the light emitting element and reflected by a target object, a flash memory unit storing a predetermined position on the light receiving unit, and a signal processing circuit unit sensing the collection position of the light on the light receiving unit, and measuring the distance to the target object based on a relative positional relationship between the predetermined position stored in the flash memory unit and the collection position of the light on light receiving unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.