Patent ID: 7529046
Filing Date: 2009-05-05
Classification: G02B,G03F

Abstract:
1. An optical element comprising an element body with an optically effective first region which has an optical axis and a peripheral region extending in a circumferential direction of the element body, in which at least a first holding region is disposed, the first holding region having at least a first contact region that co-operates with a first holding device in order to hold the element body, characterised in that the peripheral region forms the first contact region, in a manner limited in the direction of the optical axis, only at two contact surfaces of the element body spaced apart from one another in the direction of the optical axis, which are respectively disposed in the region of a circumferential outer edge of the element body and of which at least one extends partially in the direction of the optical axis and of which the other one extends at most partially in the direction of the optical axis.