Method and system for dependently controlling colour light sources
US8330383B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2008 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Feb 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system for dependently controlling color light sources. The lighting system comprises a drive current controller providing current signals for one or more first groups of light-emitting elements, and a signal derivation module operatively connected to the drive current controller. The signal derivation module is configured to determine and provide current signals for one or more second groups of light-emitting elements, the current signals being based on the current signals provided to the first groups of light-emitting elements. The method comprises the steps of determining one or more first drive currents for driving one or more first groups of light-emitting elements, and determining one or more second drive currents for driving one or more second groups of light-emitting elements, wherein each of the one or more second drive currents is predetermined based on at least one of the one or more first drive currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.