XENON SHORT-ARC DISCHARGE LAMP

PCT No. PCT/EP88/00381 Sec. 371 Date Jan. 13, 1989 Sec. 102(e) Date Jan. 13, 1989 PCT Filed May 5, 1988 PCT Pub. No. WO88/09565 PCT Pub. Date Dec. 1, 1988.A xenon short arc discharge lamp has a lamp bulb (1) of quartz glass, into which two rod-shaped electrodes (4, 5) protrude, the spacing of which...

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Bibliographic Details
Main Authors NEIGER, MANFRED, HOPPSTOCK, REINER, KLEINER, BERND
Format Patent
LanguageEnglish
German
Published 11.03.1992
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
BASIC ELECTRIC ELEMENTS
CINEMATOGRAPHY
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
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Summary:PCT No. PCT/EP88/00381 Sec. 371 Date Jan. 13, 1989 Sec. 102(e) Date Jan. 13, 1989 PCT Filed May 5, 1988 PCT Pub. No. WO88/09565 PCT Pub. Date Dec. 1, 1988.A xenon short arc discharge lamp has a lamp bulb (1) of quartz glass, into which two rod-shaped electrodes (4, 5) protrude, the spacing of which is shorter than the diameter of the shaft (8) of the cathode (5); the cathode (5) is provided with a conical, obtuse tip (9). By doping with a metal halide, such as thallium iodide, the spectral radiant intensity per unit area in the plasma zone immediately in front of the cathode (5) is increased substantially compared with an undoped xenon short arc discharge lamp, and as a result of a flow-controlled tungsten-halogen cycle process, a stabilized cathode spot operation is attained, and the inner wall of the lamp bulb (1) remains free of tungsten deposits.
Bibliography:Application Number: EP19880904211