LED light assembly with predetermined distribution pattern and built-in retroreflector
US7772988B1 · kind B1 · utility
8Cited by
7References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Jun 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2013/222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for producing specified output intensity distribution requirements from a single LED source, wherein the apparatus includes a single LED source and a cover, including a lens, that captures and controls the non-collimated light of the LED source and limits its spread vertically and horizontally as well as producing intensity variations within the output pattern. In one aspect of the invention, the lens is on the same order of size as the LED source, the cover has an exposed surface area several times larger than the area of the lens and is primarily configured to have retroreflective properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.