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:
Jan. 07, 2025
Filed:
Jul. 09, 2021
Denka Company Limited, Tokyo, JP;
Shunsuke Mitani, Tokyo, JP;
Keita Kobayashi, Tokyo, JP;
DENKA COMPANY LIMITED, Tokyo, JP;
Abstract
Phosphor particles for producing a wavelength conversion member of a projector, including CASN, and/or SCASN. A cured sheet having a film thickness of 50±5 μm produced by using the particle satisfies the following optical characteristics: when an intensity at a peak wavelength of blue light emitted from a blue LED having a peak wavelength between 450 to 460 nm is defined as Ii [W/nm], and where the blue light is emitted to one surface side of the cured sheet, when an intensity of light emitted from the other surface side of the cured sheet at a peak wavelength between 450 to 460 nm is defined as It [W/nm] and an intensity thereof at a peak wavelength between 600 to 650 nm is defined as Ip [W/nm], It/Ii is equal to or less than 0.2 and Ip/Ii is equal to or more than 0.05.