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:
Jan. 20, 2015
Filed:
Jul. 24, 2012
Applicants:
Frank Simon, Göttingen, DE;
Paul Van Der Wilt, Göttingen, DE;
Ludwig Schwenger, Hannover, DE;
Inventors:
Assignee:
Coherent GmbH, Göttingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/10 (2006.01); G02B 13/08 (2006.01); G02B 27/09 (2006.01); B23K 26/00 (2014.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
G02B 27/09 (2013.01); G02B 27/095 (2013.01); B23K 26/0042 (2013.01); B23K 26/0081 (2013.01); H01L 21/02532 (2013.01);
Abstract
Apparatus for homogenizing and projecting two laser-beams is arranged such that the projected homogenized beams are aligned parallel to each other in a first transverse axis and partially overlap in second transverse axis perpendicular to the first transverse axis. The projected homogenized laser-beams have different intensities in the second axis and the degree of partial overlap is selected such that the combined intensity of the laser beams in the second axis has a step profile.