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. 13, 2018
Filed:
Mar. 13, 2014
Hamamatsu Photonics K.k., Hamamatsu-shi, Shizuoka, JP;
Daisuke Kawaguchi, Hamamatsu, JP;
Makoto Nakano, Hamamatsu, JP;
Ryota Sugio, Hamamatsu, JP;
Tsubasa Hirose, Hamamatsu, JP;
Keisuke Araki, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
The laser processing device comprises a laser light source emitting a laser light, a converging optical system converging the laser light at an object to be processed, and an aberration providing part for imparting an aberration to the laser light converged at the object by the converging optical system. In an optical axis direction of the laser light, letting a reference aberration range be a range of a converging-induced aberration as an aberration occurring at a position where the laser light is converged as a result of converging the laser light at the object, the aberration providing part imparts a first aberration to the laser light such that the laser light has an elongated range longer than the reference aberration range in the optical axis direction as an aberration range and an intensity distribution in the optical axis direction with a continuous undulation in the elongated range.