Side reflector for illumination using light emitting diode
US7070301B2 · kind B2 · utility
33Cited by
78References
56Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2003 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jan 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED illumination unit uses a first reflector comprising a reflecting surface formed as a surface of revolution about a first revolution axis. The LED emits light about a first LED axis towards the reflecting surface of the first reflector. The first LED axis is non-parallel to the first revolution axis and the light emitting area of the first LED unit is positioned substantially at a focus of the reflecting surface. The reflector may also have two or more reflecting surfaces for collecting and directing light from two or more respective LEDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.