Metal halide lamp with improved lumen output and color rendition

Details Metal halide lamp with improved lumen output and color rendition Metal halide lamp with improved lumen output and color rendition

1992-02-04

1993-07-06

Yusko, Donald J.

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

313 25, 313571, 313634, H01J 6122

Patent

active

052257380

ABSTRACT:
The luminous efficacy and color rendering index of a metal halide lamp containing sodium iodide and scandium iodide is increased, and the color correlated temperature is decreased, by the addition of critical amounts of thallium iodide and lithium iodide.

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patent: 4247798 (1981-01-01), Howe et al.
patent: 4709184 (1987-11-01), Keefe et al.
patent: 4866342 (1989-09-01), Ramaiah et al.
patent: 4963790 (1990-10-01), White et al.

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