Light collector
US5471053A · kind A · utility
14Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jun 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/0481
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light collector for use with a photodetector that provides uniform photodetector output response over a polar angular range regardless of the polar angle of incidence of light upon the collector is disclosed. The light collector comprises a generally spheroidally-shaped light direction changer having a light diffusing surface, and a generally spheroidally-shaped polar attenuator. The geometric center of the photosensitive surface of the photodetector is adjacent to the vertex of the generally spheroidally-shaped light direction changer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.