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:
Mar. 31, 2009
Filed:
Feb. 06, 2006
Wilhelm Ulrich, Aalen, DE;
David Shafer, Fairfield, CT (US);
Dieter Bader, Obergroeningen, DE;
Alexander Epple, Aalen, DE;
Wilhelm Ulrich, Aalen, DE;
David Shafer, Fairfield, CT (US);
Dieter Bader, Obergroeningen, DE;
Alexander Epple, Aalen, DE;
Carl Zeiss SMT AG, Oberkochen, DE;
Abstract
A refractive optical imaging system for imaging an object field arranged in an object surface of the imaging system into an image field arranged in an image surface of the imaging system on a demagnifying imaging scale has a multiplicity of optical elements which are configured and arranged such that a defined finite field curvature of the imaging system is set such that an object surface concavely curved relative to the imaging system is imaged into a flat image surface.