Patent ID: 7489441

Claim:
An optical component comprising: a substrate, on which at least one curved substrate surface is formed that defines an optical axis of the optical component, wherein the substrate surface is coated with a multilayer coating that is active in the ultraviolet region at a design wavelength λ 0 and comprises a first layer, applied to the substrate surface, made from a first dielectric material and at least one second layer, applied to the first layer, made from a second dielectric material, wherein the substrate consists essentially of a crystal material that has an axially parallel crystal direction, running parallel to the optical axis, and edge crystal directions perpendicular to edge regions of the curved substrate surface, wherein an angle between the axially parallel crystal direction and the edge crystal directions is at least 17°, and the first layer has an essentially untextured layer structure, and, wherein the axially parallel crystal direction deviates by less than 15° from a low index crystal direction of the crystal material.