Optical elements and method of manufacture

Details Optical elements and method of manufacture Optical elements and method of manufacture

1990-02-02

1992-06-09

Ryan, Patrick J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428697, 428699, 428704, 359350, 359356, B32B 900

Patent

active

051206021

ABSTRACT:
An optical element includes a base layer of a first material selected from the group consisting of gallium arsenide, gallium phosphide, cadmium telluride, mercury cadmium telluride, zinc sulfide and zinc selenide, and a coating layer of the selected base layer material. The coating layer has a predetermined degree of intrinsic compressive stress to protect the base layer.

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