Reflector lamp assembly including metal halide arc tube

Details Reflector lamp assembly including metal halide arc tube Reflector lamp assembly including metal halide arc tube

1990-12-06

1991-08-27

Yusko, Donald J.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313634, H01J 6152

Patent

active

050436236

ABSTRACT:
An electric lamp includes an arc tube assembly mounted in a lamp envelope including a reflector, a lens and a base for connection to an electrical source. The arc tube assembly includes an arc tube having a longitudinal axis aligned with the optical axis of the reflector, a light-transmissive shroud disposed around the arc tube, first and second clips attached to opposite ends of the arc tube, a connection member attached to the first and second clips such that the shroud is retained between the first and second clips in a fixed position relative to the arc tube, and upper and lower electrode supports for mechanically supporting the arc tube in the lamp envelope entirely from the base region and for coupling electrical energy to the arc tube. A support ring is positioned in a heel region of the lamp envelope and is attached to the connection member. The support ring cushions the arc tube assembly when the lamp is subjected to mechanical shock. The connection member includes a connection rod having a first section located outside the shroud between the first and second clips and a second section extending between the first section and the support ring.

REFERENCES:
patent: 4961019 (1990-10-01), White et al.

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