OPTICAL SYSTEM WITH AN EXCHANGEABLE, MANIPULABLE CORRECTION ARRANGEMENT FOR REDUCING IMAGE ABERRATIONS

摘要

The invention relates to a projection exposure apparatus for semiconductor lithography, comprising at least one manipulator (14) for reducing image aberrations, wherein the manipulator (14) contains at least one optical element (8) which can be manipulated by means of at least one actuator (13), and wherein the manipulator (14) is formed in changeable fashion together with an actuator (13).