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. 09, 2024
Filed:
Nov. 05, 2020
Disco Corporation, Tokyo, JP;
Teppei Nomura, Tokyo, JP;
Atsushi Ueki, Tokyo, JP;
DISCO CORPORATION, Tokyo, JP;
Abstract
A laser processing apparatus includes a laser beam applying unit for applying a laser beam to a workpiece, and a control unit. The laser beam applying unit includes a laser oscillator for emitting a laser, a condensing lens, a concave mirror having a focal point at a focused spot of the condensing lens and having a spherical reflecting surface, a beam splitter for transmitting therethrough the laser beam emitted from the laser oscillator toward the condensing lens and branching off a reflected beam, and a wavefront measuring unit for receiving the reflected beam and acquiring wavefront data. The control unit changes a phase pattern to be displayed on a display portion of a spatial light modulator on the basis of the wavefront data.