Method and apparatus for setting a chromaticity coordinate
US8604702B2 · kind B2 · utility
2Cited by
0References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 2010 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Sep 1, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for setting a color locus of a luminaire (110) comprising at least one phosphor-converted light-emitting diode (103, 105) and at least one monochromatic light-emitting diode (104), wherein the method comprises the steps of: setting a current for the at least one phosphor-converted light-emitting diode (103, 105) setting a pulse width modulation for the at least one phosphor-converted light-emitting diode (104); and setting a current or a pulse width modulation for the at least one monochromatic light-emitting diode (104).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.