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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.:

US 9395550 B1

PDFFull Text
Date of Patent:
Jul. 19, 2016

Filed:

Aug. 28, 2013

Laser light source

Applicant:

Sumitomo Electric Industries, Ltd., Osaka-shi, JP;

Inventor:

Shigehiro Nagano, Yokohama, JP;

Assignee:

Sumitomo Electric Industries, Ltd., Osaka-shi, JP;

Attorneys:

Venable LLP

Michael A. Sartori

Primary Examiner:

Jack Dinh

Int. Cl.
CPC ...
G02B 27/30 (2006.01); H01S 3/10 (2006.01); G02B 19/00 (2006.01); G02B 27/00 (2006.01); H01S 3/00 (2006.01); B23K 26/06 (2014.01); H01S 3/067 (2006.01);
U.S. Cl.
CPC ...
G02B 27/30 (2013.01); B23K 26/0648 (2013.01); B23K 26/0665 (2013.01); G02B 19/0014 (2013.01); G02B 19/0047 (2013.01); G02B 27/0025 (2013.01); H01S 3/005 (2013.01); H01S 3/067 (2013.01);
Abstract

The present invention relates to a laser light source which reduces wavelength-dependent difference of focal position of condensed light when multicolor light with a wide spectral width is collimated and then condensed. The laser light source incorporates a collimator device, in which an installation position of a collimating lens with respect to a laser light entrance portion is set so that a beam waist position of laser light having passed through the collimating lens shifts closer to the collimating lens with a shorter-wavelength-side wavelength component out of wavelength components included in the laser light.

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