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. 06, 2020
Filed:
Feb. 09, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yoshihisa Nagasaki, Osaka, JP;
Takashi Ohbayashi, Osaka, JP;
Takahiro Hamada, Osaka, JP;
Yukihiko Sugio, Osaka, JP;
Yusuke Ogihara, Osaka, JP;
Abstract
A wavelength conversion member of the present disclosure includes a first matrix, phosphor particles embedded in the first matrix, and at least one selected from the group consisting of first filler particles embedded in the first matrix and surface coating layers respectively covering surfaces of the phosphor particles. The wavelength conversion member satisfies at least one relationship selected from the group consisting of |n−n|>|n−n| and |n−n|>|n−n| wherein nis a refractive index of the first matrix, nis a refractive index of the phosphor particles, nis a refractive index of the first filler particles, and nis a refractive index of the surface coating layers.