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. 18, 2022
Filed:
Dec. 15, 2020
Nichia Corporation, Anan, JP;
Tatsuya Kanazawa, Anan, JP;
Kazuma Kozuru, Tokushima, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
A light-emitting device includes: a semiconductor laser element; a package; an optical member fixed to the package; and a first adhesive and a second adhesive fixing the optical member to the package, the second adhesive having a better resistance to light than the first adhesive. The package has an emission surface through which light from the semiconductor laser element exits the package. In the optical member, one or more first bonding regions to which the first adhesive is bonded and one or more second bonding regions to which the second adhesive is bonded are located at positions that are closer to an incidence surface of the optical member than to an emission surface of the optical member. In the optical member, the one or more first bonding regions and the one or more second bonding regions have a light transmittance of 80% or more.