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:
Jul. 12, 2022
Filed:
Apr. 25, 2018
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Riken, Saitama, JP;
Masashi Iwashimizu, Tokyo, JP;
Hiroyuki Daigo, Tokyo, JP;
Shingo Nishikata, Tokyo, JP;
Kazunori Masukawa, Tokyo, JP;
Atsushi Ochiai, Tokyo, JP;
Toshikazu Ebisuzaki, Saitama, JP;
Satoshi Wada, Saitama, JP;
Yoshiyuki Takizawa, Saitama, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
RIKEN, Saitama, JP;
Abstract
A laser beam irradiation apparatus including: a plurality of laser light sources emitting first laser beams; and a light-condensing optics system having an incident face on which the first laser beams are made incident and performing an optical operation on the first laser beams to emit second laser beams. The plurality of laser light sources are configured to emit the first laser beams so that beam diameters are expanded towards the incident face. Each first laser beam overlaps at least one of the other laser beams on the incident face. The light-condensing optics system is configured so that beam diameters of second laser beams emitted from the light-condensing optics system are minimal on a target face, and a distance between a center of each second laser beam and the optical axis on the target face is smaller than a beam radius of each second laser beam on the target face.