Patent ID: 8199315

Claim:
An objective having an optical axis, comprising: an objective housing; an inner part; an intermediate part; an outer part connected to the inner part via the intermediate part; at least one optical element mounted in the objective housing, the at least one optical element being mounted in the inner part; and at least one adjusting device configured to enable relative movement between the outer part and the intermediate part and between the intermediate part and the inner part, wherein: the relative movement results in movement of the at least one optical element which is a combination of a translation of the at least one optical element perpendicular to the optical axis, a translation of the at least one optical element parallel to the optical axis, and a tilting of the at least one optical element relative to the optical axis; the at least one adjusting device comprises a lever mechanism configured to act on the outer part and on the intermediate part, a center of rotation thereof being fixedly connected to the intermediate part via an articulation point; and the objective is a semiconductor lithography objective.