Patent ID: 7348949
Filing Date: 2008-03-25
Classification: G09G

Abstract:
1. A control system for a Light Emitting Diode (LED) based light system, comprising: a plurality of light source assemblies, each light source assembly comprising a light source of a first color and a light source of a second color, the first and second colors being different; a plurality of feedback units for generating feedback signals representative of luminance and chrominance characteristics; and a controller in signal communication with said plurality of feedback units configured to provide drive signals to the light source assemblies during respective non-overlapping intervals such that a light source of the first color in a first light source assembly and a light source of the first color in a second light source assembly are driven at non-overlapping intervals and such that a light source of the second color in the first light source assembly and a light source of the second color in the second light source assembly are driven at non-overlapping intervals and to adjust said drive signals on a per-light source assembly and a per-light source basis in response to feedback signals from said plurality of feedback units.