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:
Nov. 05, 2019
Filed:
Mar. 01, 2017
Nippon Electric Glass Co., Ltd., Otsu-shi, Shiga, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Abstract
Provided is a wavelength conversion member that is less likely to cause deformation or breakage due to thermal expansion and has an excellent light extraction efficiency. A wavelength conversion memberthat converts a wavelength of excitation lightemitted from a light source includes: a containerhaving a frame-shaped sidewall; a phosphor layerdisposed in the containerand containing a resin and a phosphor; a cover memberdisposed over the sidewallof the containerand sealing an interior of the container; and a sealing material layerdisposed between the sidewallof the containerand the cover member, wherein the phosphor layerand the cover memberare in close contact with each other, and a cavitysurrounded by the phosphor layer, the cover member, and the sealing material layeris provided over the sidewallof the container