Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1998-03-25
2000-04-11
Patel, Vip
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313483, 313485, 313491, H01J 162
Patent
active
060491647
ABSTRACT:
A discharge vessel (10) encloses a discharge space (12) in a gastight manner, electrodes (21a, 21b) being arranged in the space and having a first (22a, 22b) and a second fastening (22a', 22b'). At least one of the electrodes (21a) is surrounded by a screen (23) which has a smallest width W, in a plane transverse to the tube axis (11) and transverse to the direction from the first (22a) to the second fastening (22a'), which width is smaller than the distance D between the fastenings (22a, 22a'). The screen (23a) has a length L in the direction of the tube axis (11) which lies between once and three times the smallest width W. The lamp consumes comparatively little mercury in the case of cold ignition.
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patent: 5686795 (1997-11-01), Sakoske et al.
patent: 5801482 (1998-09-01), Verhaar et al.
Van Der Wel Pieter J. C.
van Kemenade Wilhelmus M. P.
Faller F. Brice
Gerike Matthew
Patel Vip
U.S. Philips Corporation
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