Optical sensor with fiberless optical member
US5233177A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Dec 3, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1295
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical sensor has an optical block including a substrate, a light-emitting element formed on the substrate, and a light-receiving element formed on the substrate by using an adjusting member for arranging side-by-side with the light-emitting element, a light-transmitting member located between the optical block and an object, and connecting terminal optically connected to the light-emitting element and the light-receiving element. It is preferable that the light-transmitting member is separated into a plurality of light transmitting members in correspondence with areas separated on the object. There is also provided an optical sensor having a light-transmitting member, a plurality of incident optical fibers, optically coupled with the light-transmitting member, for transmitting light emitted from a light-emitting element to the light-transmitting member, a plurality of outgoing optical fibers, optically coupled with the light-transmitting member, for transmitting light passed through the light-transmitting member after being reflected on an object to the light-receiving element, and a housing for integrally housing the light-transmitting member, the incident optical fiber, and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.