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Low pressure mercury vapor discharge lamp with heat conductive component

  • US 6,172,452 B1
  • Filed: 07/16/1998
  • Issued: 01/09/2001
  • Est. Priority Date: 09/10/1997
  • Status: Expired due to Term
First Claim
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1. A low pressure mercury vapor discharge lamp comprising a fluorescent tube having an amalgam container containing amalgam to control mercury vapor pressure at a steady lighting condition, a holder holding both ends of the fluorescent tube, a lighting circuit to light said fluorescent tube, a case accommodating said lighting circuit, and a base provided on said case, wherein said amalgam container and said base are thermally connected with each other by a heat conductive component, the heat conductive component being formed such that one end thereof is wound around the outer surface of the amalgam container while the other end is sandwiched between the case and the base and connected to the base, and the heat of the amalgam container to be radiated is conducted to the base via the heat conductive component.

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