Precise repeatable setting of color characteristics for lighting applications
US7497590B2 · kind B2 · utility
38Cited by
130References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Feb 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A desired color of illumination of a subject is achieved by determining settings for color inputs and applying those setting to one or more systems that generate and mix colors of light, so as to provide combined light of the desired character. In the examples of appropriate systems, an optical integrating cavity diffusely reflects light of three or more colors, and combined light emerging from an aperture of the cavity illuminates the subject. System settings for amounts of the different colors of the input lights are easily recorded for reuse or for transfer and use in other systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.