Optical device for lighting apparatus, with a plurality of combined reflectors
US4034217A · kind A · utility
13Cited by
3References
11Claims
0Family size
Inventor
Key dates
| Filing date | Jun 20, 1975 |
| Grant date | Jul 5, 1977 |
| Priority date | — |
| Expiry date | Jun 20, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V7/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical device for lighting including a plurality of combined reflectors to control a beam of light from a lamp and to direct it forward, so no reflected beam passes through the lamp and the light leaving the opening of the reflector forms a parallel beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.