Electrodeless low-pressure discharge lamp
First Claim
1. An electrodeless low-pressure discharge lamp comprising a translucent lamp vessel sealed in a gas-tight manner and filled with a metal vapor and a rare gas, said lamp having a first winding for generating an electrical discharge in the lamp vessel during lamp operation, said first winding having respective ends and supply wires extending from each end for connection to a high-frequency electric power supply unit, and a second winding which extends at the area of the first winding and has a supply wire and a free end, one of the supply wires of the first winding being electrically connected to said supply wire of said second winding, the potential gradient between the ends of the first winding being substantially equal to that of the second winding during operation, characterized in that ignition antennas are secured to the free end of the second winding and to one end of the first winding.
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Accused Products
Abstract
Electrodeless low-pressure discharge lamp having a glass lamp vessel (1) which is sealed in a gaas-tight manner and which is filled with at least a metal vapor and a rare gas, said lamp having a first winding (6) which is connected to a high-frequency electric power supply unit and which generates an electric discharge in the lamp vessel (1), one of the supply wires of the first winding being electrically connected to a supply wire of a second winding (12) which extends at the area of the first winding and which has a free end (13), whilst the potential gradient between the ends of the first winding (6) is substantially equal to that of the second winding (12) during operation, ignition antennas (14, 15) being secured to the free end (13) of the second winding (12) and to one end (16) of the first winding (6).
66 Citations
5 Claims
- 1. An electrodeless low-pressure discharge lamp comprising a translucent lamp vessel sealed in a gas-tight manner and filled with a metal vapor and a rare gas, said lamp having a first winding for generating an electrical discharge in the lamp vessel during lamp operation, said first winding having respective ends and supply wires extending from each end for connection to a high-frequency electric power supply unit, and a second winding which extends at the area of the first winding and has a supply wire and a free end, one of the supply wires of the first winding being electrically connected to said supply wire of said second winding, the potential gradient between the ends of the first winding being substantially equal to that of the second winding during operation, characterized in that ignition antennas are secured to the free end of the second winding and to one end of the first winding.
Specification