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. 17, 2022
Filed:
Feb. 24, 2020
Applicant:
Coherent Lasersystems Gmbh & Co. KG, Göttingen, DE;
Inventors:
Assignee:
Coherent LaserSystems GMBH & Co. KG, Göttingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/09 (2006.01); G02B 3/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0961 (2013.01); G02B 3/0062 (2013.01);
Abstract
A beam homogenizer for transforming a beam of laser-radiation into a flat-top intensity distribution having brighter or darker edges comprises a first lens array, a second lens array, and a positive lens. The first lens array includes a plurality of lens elements that are separated by gaps having no optical power. Brighter or darker edges are produced by selecting a distance between the first and second lens arrays that is less than or greater than the focal length of lens elements in the second lens array.