Wall and ceiling lighting unit
US5278737A · kind A · utility
41Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Nov 6, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V7/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting unit for illuminating a wall and adjacent ceiling area. The lighting unit includes a primary reflection element having a curved portion and a smoothly coupled planar portion. A light source is positioned within the lighting unit and a diffuser element can be used to obtain a desired illumination distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.