| 摘要 |
A mirror assembly to interact with a beam of radiation of a lithographic apparatus is disclosed. The mirror assembly includes a mirror, a piezo electric actuator, and a mover structure, the mover structure connected to the mirror, an assembly of the mirror and the mover structure being pivotable about a pivot point, the piezo electric actuator having a contacting surface to establish a slip-stick contact with the mover structure.
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