LED-based white-light lighting module for preventing glare and providing adjustable color temperature
US7931517B2 · kind B2 · utility
4Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2009 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is an illuminative module for enhancing the white balance while reducing thermal drift and color blocks. The illuminative module includes a substrate and light-emitting elements provided on the substrate to emitting light of the primary colors and a fourth color, respectively, so that the light of the primary colors is mixed with the light of the fourth color to provide white light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.