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:
Feb. 11, 2020
Filed:
Jan. 04, 2017
Hamamatsu Photonics K.k., Hamamatsu-shi, Shizuoka, JP;
Kenshi Fukumitsu, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
The controllability of modified spots is improved. A laser processing apparatuscomprises a first laser light sourcefor emitting a first pulsed laser light L, a second laser light sourcefor emitting a second pulsed laser light L, half-wave platesfor respectively changing directions of polarization of the pulsed laser light L, L, polarization beam splittersfor respectively polarization-separating the pulsed laser light L, Lhaving changed the directions of polarization, and a condenser lensfor converging the polarization-separated pulsed laser light L, Lat an object to be processed. When the directions of polarization of the pulsed laser light L, Lchanged by the half-wave platesare varied by a light intensity controllerin the laser processing apparatus, the ratios of the pulsed laser light L, Lpolarization-separated by the polarization beam splittersare altered, whereby the respective intensities of the pulsed laser light L, Lare adjusted.