×

COLOR TUNABLE LIGHT SOURCE

  • US 20100052560A1
  • Filed: 11/12/2009
  • Published: 03/04/2010
  • Est. Priority Date: 05/07/2007
  • Status: Abandoned Application
First Claim
Patent Images

1. A color tunable light source comprising:

  • a first LED arrangement operable to emit light of a first color;

    a second LED arrangement operable to emit light of a second color, the LED arrangements being configured such that their combined light comprises the output of the source; and

    control means operable to control the color of light emitted by the source by controlling the relative light outputs of the two LED arrangements wherein the control means is operable to generate a control signal for dynamically switching the outputs of the LED arrangements and the color is tunable by controlling a duty cycle of the control signal.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×