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Lamp including sulfur

  • US 5,404,076 A
  • Filed: 06/03/1993
  • Issued: 04/04/1995
  • Est. Priority Date: 10/25/1990
  • Status: Expired due to Term
First Claim
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1. An electrodeless lamp comprising,a) an envelope of light transmissive material for containing a discharge,b) a fill in said envelope which includes elemental sulfur, the fill having a pressure of at least about 1 atmosphere at operating temperature, andc) excitation means for coupling electromagnetic energy to said fill at a power density of at least 50 watts/cc for exciting said discharge.

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