Gas discharge lamp with high-energy vacuum ultraviolet emission

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United States of America Patent

APP PUB NO 20050218811A1
SERIAL NO

11094700

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A novel VUV lamp is described, in which one or more portions of the lamp enclosure include a VUV transmissive section to transmit VUV radiation. At least one of the VUV transmissive sections is fabricated from crystalline LiCaAlF.sub.6. The entire enclosure of the lamp can, for example, be fabricated from crystalline LiCaAlF.sub.6. Alternatively, a portion of the enclosure other than the VUV transmissive section(s) of the lamp can be fabricated from a material other than LiCaAlF.sub.6. For example, the material can be glass, ceramic or quartz. In one type of embodiment, the lamp's VUV optical radiation output is produced by an electrical gas discharge inside a sealed bulb. In preferred embodiments of this type, the bulb is filled with a low pressure of nitrogen gas or carbon monoxide gas.

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Patent Owner(s)

Patent OwnerAddress
MINE SAFETY APPLIANCES COMPANYLEGAL DEPARTMENT 121 GAMMA DRIVE PITTSBURGH PA 15238

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schulman, Michael B Pittsburgh, PA 7 50

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