The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2003
Filed:
Jan. 05, 2001
Wolfgang Hummel, Schwäb. Gmünd, DE;
Hubert Holderer, Königsbronn, DE;
Rudolf Von Bünau, Essingen, DE;
Christian Wagner, Aalen, DE;
Jochen Becker, Obenkochen, DE;
Stefan Xalter, Obenkochen, DE;
CARL-Zeiss-Stiftung, , DE;
Abstract
An optical element ( ) of an optical system has at least one chamber ( ) that is sealed against atmospheric pressure and is enclosed by boundary surfaces and that has a fluid filling. At least one of the boundary surfaces of the chamber ( ) is exposed at least partially to illumination light. It is configured so that a change in the fluid pressure inside the chamber ( ) results in a change in non-rotational-symmetric imaging properties of the optical element ( ) having n-fold symmetry. For this purpose, a fluid source has a fluid connection to the chamber via a fluid supply line ( ). Furthermore, a control device is provided for the pressure in the fluid filling.