Lighting device with OLEDs
US7963664B2 · kind B2 · utility
5Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Dec 21, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device with a light emitter includes OLEDs of at least two different primary colors. The light emitter is followed by a primary optics, e.g. a collimator or a lens, and a tapered tubular reflector with a diameter that increases from its narrow end to its wide end. The light emitter may include concentric rings of different OLEDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.