Optical element for the beam guidance of imaging light in projection lithography

An optical element is configured to guide imaging light in projection lithography. The optical element has a main body and at least one optical surface carried by the main body. At least one compensation weight element, which is attached to the main body, serves for a weight compensation of a figure...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Prochnau, Jens, Orlik, Roman, Schaffer, Dirk
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY MATERIALS THEREFOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS
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Beschreibung
Zusammenfassung:	An optical element is configured to guide imaging light in projection lithography. The optical element has a main body and at least one optical surface carried by the main body. At least one compensation weight element, which is attached to the main body, serves for a weight compensation of a figure deformation of the optical surface caused by gravity. This results in an optical element with a small figure deformation at the use location.