Microwave generated electrodeless lamp for producing bright outp

Details Microwave generated electrodeless lamp for producing bright outp Microwave generated electrodeless lamp for producing bright outp

1982-05-24

1985-03-26

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Distributed parameter resonator-type magnetron

315248, 315344, H01J 746, H01J 1980

Patent

active

045075875

ABSTRACT:
A microwave generated electrodeless light source for producing a bright output comprising a lamp structure including a microwave chamber and a plasma medium-containing lamp envelope having a maximum dimension which is substantially less than a wavelength disposed therein. To provide the desired radiation output the interior of the chamber is coated with a UV-reflective material and the chamber has an opening for allowing UV radiation to exit, which is covered with a metallic mesh. The chamber is arranged to be near-resonant at a single wavelength, and the lamp envelope has a fill including mercury at an operating pressure of 1-2 atmospheres, while a power density of at least 250-300 (watts/cm.sup.3) is coupled to the envelope to result in a relatively high deep UV output at a relatively high brightness.

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