Lighting control system and method
US9301359B2 · kind B2 · utility
26Cited by
49References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system has first and second light sources operable to generate light having cool and warm white color temperatures, respectively. A color control provides a variable color control signal to adjust a perceived color output of the lighting system. Throughout a range of the color control signal, the controller is operable to smoothly vary the perceived color output of the lighting system between the cool white color and the warm white color. In second and thirds ranges of the color control signal, the perceived color output of the lighting system is the cool or warm white color, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.