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.

Date of Patent:
Dec. 27, 2016

Filed:

Mar. 25, 2013
Applicant:

Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, Hyogo, JP;

Inventors:

Mutsuhiro Nakazawa, Kobe, JP;

Kazunori Takahara, Kobe, JP;

Osami Oogushi, Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/12 (2006.01); B23K 26/08 (2014.01); H01L 31/04 (2014.01);
U.S. Cl.
CPC ...
G02B 26/122 (2013.01); B23K 26/0821 (2015.10); B23K 26/0846 (2013.01); G02B 26/126 (2013.01); H01L 31/04 (2013.01);
Abstract

An optical scanning device includes: a projector configured to radiate laser light incident thereon while causing the laser light to make angular movement around a projection center, and a reflector with a parabolic surface, the reflector being configured to reflect the laser light from the projector. The projection center is positioned at a focal point of the parabolic surface. The projector radiates the laser light such that the greater a difference between a rotation angle of the laser light and a reference angle, the lower an angular speed of the laser light, the reference angle being the rotation angle of the laser light when the laser light reflects on a vertex of the parabolic surface. A laser machining device includes the optical scanning device, and is configured to cause the laser light from the reflector to fall on a workpiece to form a machining line.


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