×

Lighting fixture

  • US 20050063185A1
  • Filed: 02/10/2003
  • Published: 03/24/2005
  • Est. Priority Date: 02/12/2002
  • Status: Active Grant
First Claim
Patent Images

1. A lighting apparatus comprising:

  • a plurality of light-emitting diodes emitting red, blue, and green light, the plurality of light-emitting diodes emitting light beams and being arranged so as to emit the light beams toward a focusing point;

    a control circuit for controlling the intensity of light emission of each of the light-emitting diodes emitting red, blue, and green light;

    a concave reflector reflecting and radiating the light focused from the light-emitting diodes to the focusing point so that the light is further focused or scattered; and

    a position-changing mechanism for changing a relative position of the concave reflector relative to the focusing point of the light-emitting diodes, wherein the position-changing mechanism changes a relative position of the focusing point of the plurality of the light-emitting diodes relative to a focal point of the concave reflector so that the light beams from the light-emitting diodes are focused or scattered by the concave reflector.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×