Importance

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Abstract

An apparatus for transmitting and/or reflecting a laser beam for at least partially correcting astigmatism of the laser beam includes an optical element for transmitting and/or reflecting the laser beam. The optical element is deformable by an external force. The apparatus further includes at least four supports for the optical element arranged along an imaginary circle. The at least four supports are aligned diametrically opposite one another in pairs. The apparatus further includes at least two deformation elements for exerting the external force on the optical element. The at least two deformation elements are arranged diametrically to one another with respect to a center of the imaginary circle through the at least four supports. Each of the at least two deformation elements is arranged on an angle bisector of an angle defined by two adjacent supports and the center of the imaginary circle through the at least four supports.

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First Claim