Lead metallizing process to avoid seal oxidation

Details Lead metallizing process to avoid seal oxidation Lead metallizing process to avoid seal oxidation

1988-06-28

1990-01-02

Wieder, Kenneth

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

313113, 362296, 445 26, 445 43, H01J 932, H01J 6136

Patent

active

048915530

ABSTRACT:
An improved high wattage mercury halide lamp which has the follower rod of the electrode ribbon assembly brazed to a side arm of a quartz arc tube with ductile alloy brazing composition which effectively seals the side arm and the electrode follower to prevent lead oxidation, metal expansion and attendant damage to the integrity of the lamp. The result is longer life high wattage mercury halide lamps.

REFERENCES:
patent: 3259777 (1961-05-01), Fridrich
patent: 4376906 (1983-03-01), Szilagyi et al.
patent: 4423471 (1983-12-01), Gordin et al.
Lemons, Lighting Design & Application, Aug. 1978.
Fiat, et al., Journal of the Society of Motion Picture and Television Engineers, vol. 84, No. 6, pp. 461-463, (Jun. 1975).
Bamberg, Electro--Optical Systems Design, pp. 59-68, (Mar. 1981).
Block et al., Journal of the SMPTE, vol. 83, pp. 725-728, (Sep. 1974).
Westinghouse Lamp Information Bulletin, 08-1974.

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