Inductively powered lamp assembly

  • US 6,731,071 B2
  • Filed: 04/26/2002
  • Issued: 05/04/2004
  • Est. Priority Date: 06/21/1999
  • Status: Expired due to Term
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First Claim
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1. An inductively powered lamp assembly comprising:

  • an inductive secondary to receive power from an inductive primary, said inductive primary having a secondary reactance;

    a lamp disposed in series with said secondary, said lamp having a lamp sleeve and a lamp impedance; and

    a capacitor disposed in series with said inductive secondary and said lamp, said capacitor selected to have a reactance that is substantially equal to or slightly less than the sum of said lamp impedance and said secondary reactance, whereby said capacitor, said lamp and said secondary operate substantially at resonance, said capacitor and said secondary being fully enclosed within said lamp sleeve, whereby said lamp sleeve is unpenetrated.

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