Highly efficient collection optical systems for providing light detectors such as photodetectors and the like with hemispherical fields of view
US5479009A · kind A · utility
7Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1994 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Aug 12, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention involves a novel egg-shaped hollow dual-compound conical light-ray concentrator with mirror-like inner walls (preferably tandem substantially inverted paraboloidal and ellipsoidal conical sections) for receiving light through one aperture end, as from an integrating sphere, and concentrating and collecting the rays within said walls and directing them to a detector at an opposite aperture end. This construction attains both high collection efficiency and hemispherical angular response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.