Luminaire with a one-sided diffuser
US7690814B2 · kind B2 · utility
1Cited by
37References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2005 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | May 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0051
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A luminaire is provided with a one-sided diffuser, located a predefined distance below the light output ports, in order to efficiently distribute light through an upper smooth surface and a lower surface having light altering tracks where each wherein each light altering tracks distributes its received light over a range of angles within a predefined cutoff angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.