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:
Aug. 04, 2020
Filed:
Nov. 27, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Ryo Ishikawa, Osaka, JP;
Makoto Ryudo, Hyogo, JP;
Doukei Nagayasu, Hyogo, JP;
Hitoshi Nishimura, Osaka, JP;
Jingbo Wang, Hyogo, JP;
Masatoshi Nishio, Osaka, JP;
Hideaki Yamaguchi, Osaka, JP;
Yoshiaki Takenaka, Osaka, JP;
Kiyotaka Eizumi, Osaka, JP;
Abstract
A condenser lens for collecting a laser beam () is disposed between the laser oscillator and the incident end surface of the optical fiber. The laser beam () is divided into a plurality of beams (). The power of the laser beam () is measured and maximized by adjusting the position of the condenser lens. The FFP of the laser beam () is measured and minimized by adjusting the position of the condenser lens. These adjusted positions are stored as the first and second lens positions. The FFP of the laser beam () is measured while the condenser lens is being moved between these positions so as to make the BPP not more than a predetermined value.