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Electric discharge lamp with voltage multiplier circuit having a capacitance which changes with temperature

  • US 4,029,989 A
  • Filed: 09/12/1975
  • Issued: 06/14/1977
  • Est. Priority Date: 09/12/1975
  • Status: Expired due to Term
First Claim
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1. A discharge lamp for connection to an associated alternating current power supply which comprises:

  • a lamp envelope including a base which includes first and second connection means for connection to the associated alternating current power supply;

    a discharge tube disposed within said envelope;

    first and second main electrodes disposed at first and second ends respectively of said discharge tube;

    a starting electrode disposed at said first end of said discharge tube;

    means for voltage multiplying connected to said first and second connection means, said starting electrode and one of said main electrodes, said means for voltage multiplying including a first capacitor having a capacitance which changes capacitance by a factor of at least 10 times with a temperature change of 175°

    C, said voltage multiplying means disposed within said envelope.

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