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:
Oct. 08, 2019
Filed:
Jun. 13, 2018
Nichia Corporation, Anan-shi, Tokushima, JP;
Tadaaki Miyata, Yokohama, JP;
Yoshihiro Kimura, Yokohama, JP;
NICHIA CORPORATION, Anan-shi, JP;
Abstract
A light source device includes: a base member; a semiconductor laser mounted on an upper surface of the base member; a lateral wall portion having: a lower surface facing the upper surface of the base member and being a non-reflecting surface, and a reflecting surface that reflects light emitted from the semiconductor laser, is connected to the lower surface of the lateral wall portion at a lower end portion of the reflecting surface, and is inclined with respect to the upper surface of the base member; a first bonding film that is a metal film disposed in a region on the upper surface of the base member facing the lower surface of the lateral wall portion; a second bonding film that is a metal film disposed on the lower surface of the lateral wall portion; and a metal bonding member fuse-bonded to the first bonding film and the second bonding film to each other. An end portion of the first bonding film at a reflecting-surface side and an end portion of the second bonding film at the reflecting-surface side are located separately from the lower end portion of the reflecting surface. A distance between the end portion of the first bonding film at the reflecting-surface side and the lower end portion of the reflecting surface is different from a distance between the end portion of the second bonding film at the reflecting-surface side and the lower end portion of the reflecting surface.