Energy efficient illumination for a light source in the form of a surface
US7997781B2 · kind B2 · utility
6Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2007 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Jan 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0078
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for coupling light into a light source in the form of a surface are disclosed. According to one embodiment, the apparatus comprises a linear light source including a light diffuser. The apparatus also has a sheet having a first edge with the linear light source placed along the first edge. The linear light source diffuses light such that the light emanates in a predetermined pattern along the first edge of the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.