Patent ID: 6724517
Filing Date: 2004-04-20
Classification: G02B

Abstract:
A deformable mirror (10) having an at least quasi-continuously deformable optically effective surface (12) and a plurality of electrically actuable adjusting members (14.1, 14.2) which engage behind its surface (12) and which are arranged in a housing (15), characterised in that the mirror plate (11) is supported in contact-free manner at an open end face of the housing (15) along its edge by a group of at least three adjusting members (14.1), a slot being provided between the mirror plate (11) and the housing (15) or an annular aperture member (24) in the edge region of said mirror plate (11), said slot (23) being in the form of a gap for the discharge of a small amount of cooling fluid which has been introduced into the interior of the housing (15) and which moreover is blown out of the housing (15) through an opening (22) which is directed in such a way that laser beam reflection on the mirror surface (12) is not influenced by the departing fluid.