Single-ended metal halide discharge lamps and process of manufac

Details Single-ended metal halide discharge lamps and process of manufac Single-ended metal halide discharge lamps and process of manufac

1985-05-01

1986-09-16

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With start up, flashing or aging

445 26, 313634, 313631, H01J 924

Patent

active

046120009

ABSTRACT:
A single-ended metal halide discharge lamp including a fused silica elliptical-shaped envelope which is filled with a metal halide dosed high pressure mercury fill and wherein a pair of electrodes each having a metal rod with a ball on the end thereof are sealed whereby isothermal operation of the elliptical-shaped envelope is effected. A manufacturing process is also provided wherein an elliptical-shaped envelope is formed, a pair of electrodes having metal rods with a ball on the end thereof are sealed into one end of the envelope, and the envelope is filled with a metal halide dosed high pressure mercury fill.

REFERENCES:
patent: 3259777 (1966-07-01), Fridrich
patent: 4161672 (1979-07-01), Cap et al.
patent: 4171498 (1979-10-01), Fromm et al.
patent: 4321504 (1982-03-01), Keeffe et al.
patent: 4340836 (1984-07-01), Bergman et al.

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