公开(公告)号：US20210199865A1

公开(公告)日：2021-07-01

申请号：US17056822

申请日：2019-05-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryosuke SHIGITANI ,  Shunpei FUJII

IPC: G02B5/26 ,  G02B5/20 ,  F21V9/06 ,  F21V9/32

Abstract: An optical filter includes a colloidal crystal layer including: a plurality of particles including at least one of an inorganic material or a resin material; and a binder disposed between the plurality of particles. The optical filter reflects a part of light in the wavelength range of 300 nm or more and less than 800 nm. A multiplex optical filter includes multiple optical filters. A light emitting device includes the optical filter and a light source, and a part of primary light emitted from the light source is transmitted through the optical filter.

公开(公告)号：US20210246330A1

公开(公告)日：2021-08-12

申请号：US16973935

申请日：2019-06-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryosuke SHIGITANI ,  Shunpei FUJII

IPC: C09D135/02 ,  C08F122/10 ,  C08K3/36 ,  C09D4/00 ,  C09D5/33 ,  C09D7/40 ,  B05D7/24

Abstract: A colloidal structure includes a plurality of types of colloidal particles, and a matrix that fixes the colloidal particles. The plurality of types of the colloidal particles include at least first colloidal particles and second colloidal particles, which are different in average particle size from each other. Then, the plurality of types of the colloidal particles form a regular array in a matrix. A multi-colloidal structure includes a plurality of the colloidal structures. A method for producing a colloidal structure includes: a dispersion liquid preparation step of preparing a colloidal dispersion liquid by dispersing a plurality of types of colloidal particles together with a monomer; a coating film generation step of coating the colloidal dispersion liquid on a substrate, and generating a coating film; and a polymerization step of polymerizing the monomer in the coating film.

公开(公告)号：US20200255729A1

公开(公告)日：2020-08-13

申请号：US15774552

申请日：2016-12-09

Applicant: Panasonic Intellectual Property Management Co., Ltd

Inventor： Tatsuya OKUNO ,  Masahiro NAKAMURA ,  Youshin LEE ,  Shunpei FUJII

IPC: C09K11/64 ,  C09K11/02 ,  F21V9/30

Abstract: A wavelength converter includes: a plurality of phosphor particles; and a binder layer that adheres the plurality of adjacent phosphor particles to one another, the binder layer being composed of a nanoparticle-adhered body in which a plurality of nanoparticles having an average particle size D50 of 1 nm or more and less than 100 nm are adhered to one another.