Optical proximity sensor with improved shield and lenses
US8232883B2 · kind B2 · utility
6Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2009 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Oct 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/945
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various embodiments of an optical sensor comprising a novel shield that may be quickly and accurately aligned and positioned with respect to an underlying light emitting and light detecting assembly are disclosed. Also disclosed are novel lens arrangements for efficiently collimating light emitted and received by the optical proximity sensor, and for reducing crosstalk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.