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:
Oct. 25, 2022
Filed:
Oct. 01, 2019
Dr. Johannes Heidenhain Gmbh, Traunreut, DE;
Josef Weidmann, Feichten, DE;
Peter Speckbacher, Kirchweidach, DE;
DR. JOHANNES HEIDENHAIN GMBH, Traunreut, DE;
Abstract
A grating structure for a diffractive optic includes grating lines, each of which is approximated by successive segments. Longitudinal axes of the segments each have an angle relative to a first coordinate axis of a reference coordinate system. A first section of a first one of the grating lines is approximated by a first group of the segments, and a second section adjacent to the first section of the first grating line is approximated by a second group of segments. The longitudinal axes of a major portion of the segments of the first group have a first predetermined angle relative to the first coordinate axis of the reference coordinate system, and the longitudinal axes of a major portion of the segments of the second group have a second predetermined angle different from the first predetermined angle relative to the first coordinate axis of the reference coordinate system.