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Illumination light source

  • US 20030063462A1
  • Filed: 05/23/2002
  • Published: 04/03/2003
  • Est. Priority Date: 05/24/2001
  • Status: Active Grant
First Claim
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1. An illumination light source comprising four types of light-emitting diodes, wherein the four types of light-emitting diodes are a blue light-emitting diode emitting blue light, a blue-green light-emitting diode emitting blue-green light, an orange light-emitting diode emitting orange light and a red light-emitting diode emitting red light.

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