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:
Jul. 31, 2018
Filed:
Aug. 23, 2016
Dexerials Corporation, Shinagawa-ku, Tokyo, JP;
Takehiro Yamasuge, Utsunomiya, JP;
Dexerials Corporation, Shinagawa-ku, Tokyo, JP;
Abstract
Provided is a light-emitting device that has excellent light extraction efficiency, inhibits deterioration of light-emission characteristics over time, and can be easily produced. The light-emitting device includes a substrate, a solid-state light-emitting element mounted on the substrate, a circular tube-shaped member positioned on the substrate such as to surround the solid-state light-emitting element, and a transparent resin portion including a cylindrical section that encapsulates the solid-state light-emitting element and that is in contact with an inner surface of the circular tube-shaped member, and a dome-shaped section that is positioned above the cylindrical section. The inner surface of the circular tube-shaped member is water repellent. The dome-shaped section contains a phosphor that is excited by light of a light-emission wavelength of the solid-state light-emitting element.