OPTICAL ELEMENT, SHOCK RESISTANCE OF WHICH IS ADJUSTED

摘要

A layer of hard carbon 16 is bonded to a base 12 of a Group II-VI or Group III-V material with a first layer 14 of yttrium oxide, scandium oxide or magnesium oxide. The base 12 may consist of zinc sulphide, zinc selenide, mercury cadmium telluride, cadmium telluride, gallium arsenide or gallium phosphide. The layers may form an antireflection coating 15.