Electrode for a high-pressure discharge lamp

Details Electrode for a high-pressure discharge lamp Electrode for a high-pressure discharge lamp

2006-01-10

2006-01-10

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

57, 57

Reexamination Certificate

active

06984939

ABSTRACT:
The electrode comprises a pin-like shank (7) and a head part (8), the electrode, in the region of its discharge-side end, forming a vessel (9) for an emitter, in which there is a bore (16) which is filled with emitter material (10). The vessel, at its discharge-side end face, forms a collar, having an inner collar part (13) which is curved convexly toward the bore and an outer collar part (14) which is curved convexly toward the side wall of the vessel.

REFERENCES:
patent: 2887603 (1959-05-01), Haidinger
patent: 3560790 (1971-02-01), Vollmer et al.
patent: 3916241 (1975-10-01), Pollard
patent: 3983440 (1976-09-01), Scott et al.
patent: 5061877 (1991-10-01), Akanuma
patent: 6518692 (2003-02-01), Schoenbach et al.

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