公开(公告)号：US20230241409A1

公开(公告)日：2023-08-03

申请号：US18010488

申请日：2021-06-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsuru NITTA ,  Shozo OSHIO ,  Chigusa FUJIWARA ,  Ryosuke SHIGITANI

IPC: A61N5/06 ,  C09K11/77

CPC classification number: A61N5/0616 ,  C09K11/77 ,  A61N2005/0644 ,  A61N2005/0658

Abstract: Provided is a light irradiation type cosmetic apparatus including a light emitting device including: a light source that emits primary light; and a first phosphor that absorbs the primary light and converts the primary light into first wavelength-converted light having a wavelength longer than that of the primary light, wherein the light source is a solid-state light source having a rated output of 1 W or more, the primary light is light emitted from the solid-state light source, the first wavelength-converted light contains fluorescence based on an electron energy transition of Cr3+, and the first wavelength-converted light has a fluorescence spectrum having a fluorescence intensity maximum value in a wavelength range exceeding 710 nm.

公开(公告)号：US20230080967A1

公开(公告)日：2023-03-16

申请号：US17802567

申请日：2021-02-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryosuke SHIGITANI ,  Kazuyuki YAMAE ,  Hironori AKIYAMA ,  Hideki WADA ,  Kotone MORI

IPC: F21V7/00

Abstract: A light-emitting device includes: a light guide that includes (i) a light-transmissive member that is light-transmissive at least in a visible light region and (ii) a light control layer that is disposed on at least a part of a surface of the light-transmissive member; and a light source that emits light toward at least one end surface of the light-transmissive member. The light control layer has reflected-wavelength selectivity that makes a wavelength of reflected light dependent on an incident angle of incident light.

公开(公告)号：US20220120948A1

公开(公告)日：2022-04-21

申请号：US17423877

申请日：2020-01-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryosuke SHIGITANI ,  Shumpei FUJII

IPC: G02B5/26 ,  F21V9/08 ,  G02B5/24

Abstract: A colloidal crystal structure includes a colloidal crystal layer including a plurality of colloidal particles and a binder disposed between the plurality of colloidal particles to fix the colloidal particles, and a refractive index control material that is provided on one surface of the colloidal structural layer, is transparent, and has a refractive index difference of less than 10% with respect to the binder. A light-emitting device includes an optical filter including the colloidal crystal structure, and a light source, and a part of primary light emitted by the light source passes through the optical filter. A lighting system includes the light-emitting device.

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.