Optical system and lithography apparatus
Number of patents in Portfolio can not be more than 2000
United States of America
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Oct 29, 2024
Grant Date -
Dec 1, 2022
app pub date -
Aug 10, 2022
filing date -
Aug 10, 2022
priority date (Note) -
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Abstract
An optical system comprises at least one mirror having a mirror body and a mirror surface, and at least one actuator device coupled to the mirror body and serving for deforming the mirror surface. The actuator device comprises at least one electrostrictive actuator element for generating a mechanical stress in the mirror body for deforming the mirror surface depending on an electrical drive voltage, and at least one electrostrictive sensor element for outputting a sensor signal depending on a deformation of the sensor element. The at least one sensor element is arranged directly adjacent to the actuator element and/or is arranged in such a way that it is configured at least partly for transferring the mechanical stress generated by the actuator element to the mirror body.
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