Single-ended metal halide discharge lamp with minimal color sepa

Details Single-ended metal halide discharge lamp with minimal color sepa Single-ended metal halide discharge lamp with minimal color sepa

1983-06-09

1985-07-09

Moore, David K.

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

313638, 313640, 313641, H01J 6106, H01J 6116

Patent

active

045284784

ABSTRACT:
A single-ended metal halide discharge lamp includes a plurality of fill gases selected to provide essentially white light at a plurality of distances from a pair of spaced electrodes and to combine the radiation from the multiple distances to provide white light with minimal color separation from the discharge lamp. Also, a method for providing spectral uniformity from a discharge lamp is provided wherein the emitted color and distance from a longitudinal axis provided by a plurality of fill gases is observed, fill gases are selected to provide white light emission at a plurality of distances from the longitudinal axis and the selected fill gases are combined to provide white light with minimal color separation from the discharge lamp.

REFERENCES:
patent: 3259777 (1966-07-01), Fridrich
patent: 3876895 (1975-04-01), Lake et al.
patent: 4308483 (1981-12-01), Keeffe et al.

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