System and method for extending viewing angle of light emitted from light pipe
US7177097B2 · kind B2 · utility
5Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jan 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described is a light pipe having a first end receiving light beams from a light source, a light pipe body through which the light beams travel and a second end including a dispersion structure with a light emitting surface, the dispersion structure being a substantially conical shaped depression in the second end, the light beams being emitted from the light emitting surface of the dispersion structure at a plurality of angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.