Light-mixing type light-emitting apparatus
US8882290B2 · kind B2 · utility
29Cited by
13References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2007 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Feb 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/73265
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-mixing type light-emitting apparatus comprises a plurality of light-emitting diodes (LEDs) formed on a transparent carrier, wherein each of the LEDs with a transparent substrate emits light of a distinct color when driven, and the light beams generated from the LEDs are mixed to form a specific color. The transparent carrier setting forth in the present invention provides a mixing zone underlying the plurality of LEDs for the light beams to mix uniformly so as to improve the light-mixing efficiency of the light-emitting apparatus and shorten the mixing distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.