公开(公告)号：US10355175B2

公开(公告)日：2019-07-16

申请号：US16071906

申请日：2017-01-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youshin Lee ,  Shozo Oshio ,  Tatsuya Okuno ,  Takeshi Abe ,  Masahiro Nakamura

IPC: H01J1/62 ,  H01L33/50 ,  C09K11/08 ,  F21S2/00 ,  G02B5/20 ,  H01S5/022 ,  F21V9/30 ,  H01L33/16 ,  H01L33/58

Abstract: A light emitting device 1 includes: a substrate 30; and a phosphor layer 40 composed in such a manner that a large number of phosphor particles 60 are adhered onto a flat surface 32 of the substrate 30. At least one of the phosphor particles 60 is a polyhedral phosphor particle 65 that is monodispersed, is derived from a crystal structure of garnet and has facets, and a median particle size D50 of the polyhedral phosphor particle 65 is 30 μm or more and a maximum thickness of the phosphor layer 40 or less. It is preferable that at least one of the phosphor particles 60 adhered onto the flat surface 32 of the substrate 30 is the polyhedral phosphor particle 65 that is monodispersed, is derived from the crystal structure of the garnet, and has the facets.

公开(公告)号：US10651348B2

公开(公告)日：2020-05-12

申请号：US16427243

申请日：2019-05-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youshin Lee ,  Shozo Oshio ,  Tatsuya Okuno ,  Takeshi Abe ,  Masahiro Nakamura

IPC: H01J1/62 ,  H01L33/50 ,  C09K11/08 ,  F21S2/00 ,  G02B5/20 ,  H01S5/022 ,  F21V9/30 ,  H01L33/16 ,  H01L33/58

Abstract: A light emitting device 1 includes: a substrate 30; and a phosphor layer 40 composed in such a manner that a large number of phosphor particles 60 are adhered onto a flat surface 32 of the substrate 30. At least one of the phosphor particles 60 is a polyhedral phosphor particle 65 that is monodispersed, is derived from a crystal structure of garnet and has facets, and a median particle size D50 of the polyhedral phosphor particle 65 is 30 μm or more and a maximum thickness of the phosphor layer 40 or less. It is preferable that at least one of the phosphor particles 60 adhered onto the flat surface 32 of the substrate 30 is the polyhedral phosphor particle 65 that is monodispersed, is derived from the crystal structure of the garnet, and has the facets.

公开(公告)号：US12244152B2

公开(公告)日：2025-03-04

申请号：US17613547

申请日：2020-05-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahiro Nakamura ,  Shozo Oshio ,  Yuki Kotani

IPC: H02J50/10 ,  F16S5/00 ,  G02B5/20 ,  G02B26/00 ,  G05D16/20 ,  H01F7/02 ,  H01F7/08 ,  H01F7/14 ,  H02J50/40

Abstract: A structural body includes: a three-dimensional net shaped body including a plurality of net lines that form a three-dimensional net shape; and a plurality of objects respectively present in two or more of a plurality of spaces partitioned by the plurality of net lines. The plurality of objects are each a mobile object that moves within one of the plurality of spaces or moves over two or more of the plurality of spaces.

公开(公告)号：US11597875B2

公开(公告)日：2023-03-07

申请号：US16755018

申请日：2018-10-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahiro Nakamura

IPC: C09K11/02 ,  C09K11/08 ,  C09K11/77 ,  G02B5/02

Abstract: A wavelength converter includes: a substrate portion; and an optical conversion layer including optical conversion inorganic particles and a binder portion that mutually holds the optical conversion inorganic particles, and being formed on the substrate portion, wherein the substrate portion and the binder portion bond to each other, and wherein the binder portion includes, as a main component, an inorganic polycrystalline substance composed in such a manner that inorganic material particles having an average particle size of 1 μm or less are bound to one another, and has thermal conductivity of 2 w/mK or more.

公开(公告)号：US11131914B2

公开(公告)日：2021-09-28

申请号：US16488578

申请日：2018-02-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Okuno ,  Masahiro Nakamura ,  Youshin Lee

IPC: G03B21/20 ,  H01L33/50 ,  G02B5/20

Abstract: A wavelength conversion member includes: a substrate; a wavelength converter including phosphor particles excited by excitation light and a binder layer that fixes or adheres the adjacent phosphor particles to one another, the wavelength converter being provided on a front surface side of the substrate; and a light reflecting film that reflects fluorescent light radiated by the phosphor particles, the light reflecting film being provided on at least a part of an interface between the substrate and the wavelength converter, wherein a refractive index of the phosphor particles is larger than a refractive index of the binder layer. It is preferable that the binder layer include nanogaps which are voids with an average diameter of 300 nm or less in an inside.