Light pipe with uniformly lit appearance
US8070341B2 · kind B2 · utility
6Cited by
20References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jul 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light pipe having substantially uniform brightness along a length thereof is disclosed. The light pipe includes a first end for receiving a plurality of light rays, a reflective portion for directing the received light rays in a pre-determined internal light pattern, wherein the reflective portion includes a plurality of reflective elements, and an emitting portion for emitting the light rays in a pre-determined light distribution pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.