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:
Nov. 09, 2004
Filed:
Jul. 12, 2002
Kurt Nattermann, Ockenheim, DE;
Ewald Moersen, Mainz, DE;
Schott Glas, Mainz, DE;
Abstract
The optical system has a first optical element ( ) and a second optical element ( ) having respective plane surfaces and cubic crystal structures, which are arranged next to each other along an optic axis ( ) so that one of the crystal axes of each optical element is parallel to the optic axis and the plane surfaces are resting against each other. The first and second optical elements have first and second orientations in relation to the optic axis, which are preferably rotated by a rotation about the optic axis ( ) with respect to each other according to the rotational symmetry of the material. At least one of the first optical element and second optical element is pre-stressed by applying a compressive stress (&sgr;,&sgr;, ) thereto. The compressive stress is applied radially symmetrically in a plane perpendicular to the optic axis ( ) and compensates for spatial dispersion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile