Discharge lamp and lighting system having a discharge lamp

  • US 6,153,982 A
  • Filed: 08/23/1999
  • Issued: 11/28/2000
  • Est. Priority Date: 09/29/1998
  • Status: Expired due to Fees
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First Claim
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1. A lighting system having a discharge lamp with at least one light-transmitting lamp vessel (1) enclosing a discharge space (3) in the discharge lamp, a luminous means and electrical terminals (2a) for supplying voltage to the discharge lamp, wherein the at least one lamp vessel (1) has a light-transmitting, electrically conductive layer (4) extending at least across the entire discharge space (3) of the discharge lamp wherein the lighting system has an operating unit for the discharge lamp, and has a reflector (5) with a metallic or metallized reflecting surface (5a) and the at least one lamp vessel (1) has wall regions (10a) facing the reflector and wall regions (10b) remote from the reflector (5), the layer thickness of the light-transmitting, electrically conductive layer (4) on the wall regions (10a) facing the reflector (5) being less than the layer thickness of the light-transmitting electrically conductive layer (4) on the wall regions (10b) remote from the reflector (5).

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