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LED-based changeable color light lamp

  • US 7,810,954 B2
  • Filed: 12/03/2007
  • Issued: 10/12/2010
  • Est. Priority Date: 12/03/2007
  • Status: Expired due to Fees
First Claim
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1. A solid state lamp assembly, comprising:

  • an ultraviolet (UV) light source;

    a housing in which the UV light source is positioned;

    a plurality of removable and interchangeable phosphor-coated envelopes, each of which comprises a coupling for removably coupling to the housing;

    wherein each envelope is coated with a different phosphor material that generates a different correlated color temperature (CCT) of white light when illuminated by the UV light source.

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