Treatment of coarse particle size zinc sulfide to improve visual

Details Treatment of coarse particle size zinc sulfide to improve visual Treatment of coarse particle size zinc sulfide to improve visual

1981-03-27

1982-12-28

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Binary compound

501 43, 501904, 264 11, 350 11, 252584, C01B 1700, G02B 522, B29D 1100

Patent

active

043661416

ABSTRACT:
Coarse particle size zinc sulfide is treated with a solution of alkali metal halide to make it adaptable for hot-pressing into shaped, polycrystalline windows which is more transparent in the visible to near visible and infrared spectral regions than untreated coarse particle size zinc sulfide.

REFERENCES:
patent: 2571905 (1951-10-01), Longini
patent: 2651584 (1953-09-01), Longini et al.
patent: 3058807 (1962-10-01), Holland
patent: 3131238 (1964-04-01), Carnall et al.
patent: 3178307 (1965-04-01), Carnall et al.
patent: 3459667 (1969-08-01), Larach et al.
patent: 4146379 (1979-03-01), Copley et al.
Kroger, F. A., Sodium and Lithium as Activators of Fluoresecence in Zinc Sulfide, J. of the Optical Society of America, vol. 39, #8, Aug. 1949 pp. 670-672.

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