Holographic device for generating multiple beams of light
US4722037A · kind A · utility
18Cited by
19References
7Claims
0Family size
Inventor
Key dates
| Filing date | Aug 15, 1986 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Aug 15, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/2615
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical assemblies having a plurality of light sources of differing spectral characteristics utilize holographic optical elements to produce a separate beam pattern for each light source. The optical assemblies are useful, for example, for producing high and low beams of an automobile headlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.