G - Physics – 02 – B
Patent
G - Physics
02
B
18/105
G02B 1/00 (2006.01) C01G 9/08 (2006.01) C03B 19/06 (2006.01) C03B 32/00 (2006.01) G02B 1/02 (2006.01) G02B 6/10 (2006.01)
Patent
CA 1181557
POLYCRYSTALLINE ZINC SULFIDE AND ZINC SELENIDE ARTICLES HAVING IMPROVED OPTICAL QUALITY Abstract Articles of polycrystalline zinc sulfide and zinc selenide achieve substantially improved optical quality by a treatment of heat and isostatic pressure by means of an inert working fluid. The treated specimens are transparent and have substantial transmission in the infrared and visible range of the spectrum. Additional improvement in the transmission characteristics is achieved by wrapping the specimens in a foil of an inert material prior to treatment.
389659
Pappis James
Willingham Charles B.
Raytheon Company
Smart & Biggar
LandOfFree
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