High pressure metal halide arc lamp with xenon buffer gas

Details High pressure metal halide arc lamp with xenon buffer gas High pressure metal halide arc lamp with xenon buffer gas

1986-07-29

1988-07-12

Moore, David K.

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

313643, H01J 6122

Patent

active

047572361

ABSTRACT:
High pressure xenon is used as a buffer gas in place of mercury in a high pressure sodium iodide arc discharge lamp. Xenon buffer gas has a more favorable influence than mercury on the sodium D-line spectrum and does not react with halides in the lamp fill. The use of xenon buffer gas increases the efficacy of the high pressure sodium iodide arc lamp.

REFERENCES:
patent: 3248590 (1966-04-01), Schmidt
patent: 3639801 (1972-02-01), Jacobs et al.
patent: 4146813 (1979-03-01), Van Viliet
patent: 4260929 (1981-04-01), Jacobs et al.
patent: 4605881 (1986-08-01), Dakin
"The High Pressure Sodium Lamp", de Groot et al., Philips Technical Library, pp. 172-175, 1/86.
Hirayama et al., "Complex Halide Vapors in Metal Halide Type Lamps", Journal of IES, Jul. 1977, pp. 209-214.

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