Lamp assembly
US4042818A · kind A · utility
6Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1976 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | Mar 16, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S43/255
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp assembly comprises a hollow body having two recesses therein, a bulbholder and a reflector in each recess, and a colorless transparent lens extending across the openings of the recesses. In one of the recesses is mounted a standard bulb and a filter element in the form of a domed cover surrounding the bulb. A neutrally colored light-absorbing material is incorporated into the filter element or is provided as a layer over a surface thereof remote from the bulb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.