Reflector lamp
US4420801A · kind A · utility
19Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1982 |
| Grant date | Dec 13, 1983 |
| Priority date | — |
| Expiry date | Feb 26, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V7/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reflector lamp comprising a concave reflector having a parabolic rear section, a spherical intermediate section, and a parabolic front section, each of the reflector sections having substantially the same common focal point, and a finite light source at the substantially common focal point, the reflector sections being dimensioned so that substantially all light rays from the finite light source which are reflected by the spherical intermediate section become re-reflected by the parabolic front section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.