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:
May. 05, 2009
Filed:
Apr. 13, 2005
Thomas Schletterer, Koenigsbronn, DE;
Franz Sorg, Oberkochen, DE;
Thomas Schletterer, Koenigsbronn, DE;
Franz Sorg, Oberkochen, DE;
Carl Zeiss SMT AG, Oberkochen, DE;
Abstract
There is provided an optical element. The optical element includes an element body having an optically effective region that has an optical axis and a peripheral region extending in a circumferential direction of the element body, a holding region disposed in the peripheral region, and a contact region in the holding region. The holding region co-operates with a holding device to hold the element body. The contact region is configured with a first contact surface and a second contact surface that are (a) spaced apart from one another in a direction of the optical axis, (b) both inclined with respect to the optical axis; and (c) not parallel to one another.