Industrial up light reflector
US7229191B1 · kind B1 · utility
5Cited by
29References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2004 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Aug 20, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2103/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In order to provide efficient and uniform up and down lighting an elongated luminaire comprises an elongated concave primary down light reflector, a pair of secondary down light reflectors having slots approximately horizontal with a lamp, and a pair of up light reflectors attached to the secondary down light reflectors opposite the lamp and horizontal with the lamp and slots such that an efficient and uniform illumination across the ceiling surface and the floor area is accomplished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.