Gas discharge lamp with built-in resistance to color center...

Details Gas discharge lamp with built-in resistance to color center... Gas discharge lamp with built-in resistance to color center...

H - Electricity

01

J

313/111

H01J 61/02 (2006.01)

Patent

CA 1281063

Abstract of the Disclosure A gas discharge lamp for emitting vacuum UV radiation, comprising a lamp body filled at low pressure with a gas capable of emitting radiation in the vacuum W range (e.g., argon), electrodes within the lamp body for passing an electric field across the gas, a crystalline window (e.g., lithium fluoride) in the body for transmitting the vacuum W radiation emitted by the gas, wherein the crystalline window is constructed of a material that, when exposed to the vacuum UV radiation emitted by the gas, forms color centers that block transmission of the radiation through the window, and a bleaching element located within the lamp body for emitting color-center bleaching radiation in response to the electric field without degrading emission of the vacuum UV radiation, the bleaching radiation being in a frequency band (e.g., 5-6 eV) lower than the vacuum UV radiation.

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