Fresnel field lens
US7684126B2 · kind B2 · utility
6Cited by
9References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Aug 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a Fresnel lens for use with an array of semiconductor pixels that are separated by inactive areas, comprising a faceted surface with a plurality of facets for receiving an imaging beam, the facets being arranged into a plurality of zones separated by zone edges, and wherein the zone edges are generally aligned with the inactive areas throughout the array. Also provided are an optical detector and an imaging system incorporating such a Fresnel lens system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.