Process for an improved laminate of znse and zns

Details Process for an improved laminate of znse and zns Process for an improved laminate of znse and zns

G - Physics

02

B

G02B 1/00 (2006.01) C23C 16/02 (2006.01) C23C 16/06 (2006.01) C23C 16/30 (2006.01) C23C 16/458 (2006.01) C23C 16/54 (2006.01)

Patent

CA 2073280

The surface of a zinc selenide substrate is ground to curve in the opposite direction from that which occurs due to the bimetallic effect when zinc sulfide is deposited on a flat substrate by the chemical vapor deposition process. The bowing of the interface that occurs upon cooling of the hot laminate when the surface of the substrate is flat before deposition is compensated for by the pre-figured bowing. A distortion free window for the transmission of infra-red radiation is provided by this invention.

La surface d'un support en séléniure de zinc est meulée pour obtention d'une courbure dans le sens opposé de celui de la courbure due à l'effet bimétallique quand du sulfure de zinc est déposé sur un support plat par voie de vapeur chimique. La courbure qui se produit à l'interface au moment du refroidissement du laminé à chaud quand la surface est plane avant la déposition est compensée par la courbure donnée préalablement. La présente invention prévoit une fenêtre sans distorsion pour la transmission de rayons infrarouges.

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