| US 7,595,786 B2 | ||
| Illumination system and illumination control method for adaptively adjusting color temperature | ||
| Cheng-Chung Shih, Fremont, Calif. (US) | ||
| Assigned to Capella Microsystems, Corp., Tortola (Virgin Islands (British)) | ||
| Filed on Nov. 13, 2007, as Appl. No. 11/979,959. | ||
| Prior Publication US 2009/0121641 A1, May 14, 2009 | ||
| Int. Cl. G09G 3/36 (2006.01); H05B 37/02 (2006.01) | ||
| U.S. Cl. 345—102 [345/82; 345/76; 345/77; 345/84; 315/158; 315/149; 315/312; 315/308] | 20 Claims |
| 1. An illumination system, comprising:
an illumination module;
a control module, for driving the illumination module to emit a light;
a first light detection module, for detecting the light produced by the illumination module to produce a first detection result;
and
a second light detection module, for detecting an ambient light to produce a second detection result;
wherein, the control module calculates a reference spectral distribution at least based on the second detection result, and
compares the first detection result with the reference spectral distribution, and the control module drives the illumination
module to emit a light adaptively adjusted in color temperature for matching with the reference spectral distribution based
on a comparison result.
|