Proximity sensor
US8928893B2 · kind B2 · utility
13Cited by
18References
35Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Jul 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/94108
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The internal propagation of radiation between a radiation source and radiation detector mounted within a sensor package is prevented by the use of an optical isolator. The optical isolator is formed by the combination of a baffle mounted between the source and detector and a groove formed in an upper surface of the sensor package between the source and detector. A bottom of the groove is positioned adjacent to an upper edge of the baffle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.