LED control system with feedback
US7172295B2 · kind B2 · utility
8Cited by
11References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | May 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of controlling power provided to one or more light emitting diodes in a projection system comprises measuring light output from the one or more light emitting diodes. Based at least upon the measured light output, the power to at least one of the light emitting diodes is modified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.