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:
Jun. 09, 2020
Filed:
Sep. 14, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Masahito Yamana, Hyogo, JP;
Noboru Iizawa, Osaka, JP;
Shintaro Hayashi, Hyogo, JP;
Yoshiyuki Nakano, Osaka, JP;
Abstract
A wavelength conversion device, etc., for laser light according to the present disclosure includes: a first substrate that is light-transmissive; a second substrate that is light-transmissive; and a phosphor layer provided between the first substrate and the second substrate and including a phosphor that converts the wavelength of incident laser light having a predetermined wavelength. The laser light has a laser irradiation power density of at least 0.03 W/mm, and each of the first substrate and the second substrate has a thermal conductivity higher than the thermal conductivity of the phosphor layer.