Direct-current short-ARC discharge lamp

Details Direct-current short-ARC discharge lamp Direct-current short-ARC discharge lamp

1998-03-12

2000-04-25

Patel, Vip

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313493, H01J 1716

Patent

active

060548118

ABSTRACT:
The metal-halide direct-current short-arc discharge lamp has a bulb (10) ch is asymmetrical with respect to a plane (1) perpendicular to a longitudinal axis (2) of the lamp, the bulb having an inner wall which is wider in the region surrounding the anode (4) of the lamp than in the region surrounding the cathode (5). Preferably, the lamp retains a fill system which includes cadmium and/or zinc. The lamp is particularly suitable for use in combination with an optical projection system (R), and especially when operating in horizontal position.

REFERENCES:
patent: 2965790 (1960-12-01), Ittig et al.
patent: 4360756 (1982-11-01), Spencer et al.
patent: 4686419 (1987-08-01), Block et al.
patent: 4935668 (1990-06-01), Hansler et al.
patent: 4937496 (1990-06-01), Neiger et al.

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