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:
Mar. 06, 2018
Filed:
Sep. 06, 2016
Phovel.co.ltd., Daejeon, KR;
Jeong-Soo Kim, Gongju-si, KR;
PHOVEL.CO.LTD, Daejeon, KR;
Abstract
A semiconductor laser device which comprises a laser diode chip () that emits laser light; a 45° reflective mirror () that changes laser light traveling horizontally to a package bottom into laser light traveling perpendicular to the package bottom. The 45° reflective mirror () is a partial reflective mirror which has a partial reflection/partial transmission characteristic. An optical feedback-partial reflective mirror () is disposed along a path of light passing vertically through the 45° reflective mirror (). The optical feedback-partial reflective mirror () supplies some of the laser light traveling through the 45° reflective mirror () back to the 45° reflective mirrorby reflecting a first portion of the laser light while transmitting a remaining portion of the laser light.