公开(公告)号：US20220233063A1

公开(公告)日：2022-07-28

申请号：US17611996

申请日：2020-05-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi ABE ,  Mitsuru NITTA ,  Shozo OSHIO

IPC: A61B1/06 ,  C09K11/77 ,  A61B1/07 ,  A61N5/06

Abstract: A light emitting device includes a solid-state light emitting element that emits a pulsed light, a wavelength converter including a phosphor that emits a wavelength-converted light having a wavelength longer than that of the pulsed light, and a light guide member including a light input end and a light output end. The wavelength converter is disposed on a light output end side of the light guide member. The pulsed light is input to the light guide member through the light input end and output through the light output end to be emitted to the wavelength converter. The wavelength-converted light has a fluorescence spectrum having a maximum intensity value in a wavelength range exceeding 710 nm. An electronic apparatus includes the light emitting device. An inspection method includes using the light emitting device.

公开(公告)号：US20220090759A1

公开(公告)日：2022-03-24

申请号：US17418278

申请日：2019-12-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsuru NITTA ,  Shozo OSHIO ,  Takeshi ABE

IPC: F21V9/30 ,  A61B5/00 ,  A61N5/06 ,  A61N5/067

Abstract: A light-emitting device includes: a light source that radiates primary light; and a first phosphor that absorbs the primary light and converts the primary light into first wavelength-converted light having a longer wavelength than the primary light, wherein the primary light is laser light, the first wavelength-converted light includes fluorescence based on electron energy transition of Cr3+, and a fluorescence spectrum of the first wavelength-converted light has a maximum fluorescence intensity value in region of a wavelength exceeding 710 nm.

公开(公告)号：US20210180769A1

公开(公告)日：2021-06-17

申请号：US16954107

申请日：2018-12-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shozo OSHIO ,  Takeshi ABE

IPC: F21V9/38 ,  H01S5/00 ,  C09K11/77 ,  H01L33/50

Abstract: A light-emitting apparatus includes: a first phosphor layer including a first phosphor composed of an inorganic phosphor activated by Ce3+; and a second phosphor layer including a second phosphor composed of an inorganic phosphor activated by Ce3+ and different from the first phosphor. The second phosphor layer is provided so as to be spaced apart from the first phosphor layer. The light-emitting apparatus further includes: an optical filter provided between the first phosphor layer and the second phosphor layer; and an excitation source that emits light that excites at least one of the first phosphor and the second phosphor. The second phosphor has light absorption characteristics of absorbing at least a part of first fluorescence emitted by the first phosphor. The optical filter reflects at least a part of the first fluorescence emitted by the first phosphor, and allows passage of second fluorescence emitted by the second phosphor.

公开(公告)号：US20190323664A1

公开(公告)日：2019-10-24

申请号：US16457956

申请日：2019-06-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi ABE ,  Shozo OSHIO ,  Hiroshi ASANO ,  Yosuke HONDA

IPC: F21K9/64 ,  F21V9/32 ,  F21V9/30 ,  F21V9/38

Abstract: A light emitting device includes a first wavelength converter that contains a first phosphor that absorbs at least part of primary light radiated by a radiation source and converts the primary light absorbed into secondary light, and a second wavelength converter that contains a second phosphor that absorbs at least part of the secondary light and converts the secondary light absorbed into tertiary light. The lifetime of fluorescence emitted from the second phosphor is longer than the lifetime of fluorescence emitted from the first phosphor, and the light density of the secondary light, with which the second wavelength converter is irradiated, is lower than the light density of the primary light, with which the first wavelength converter is irradiated.

公开(公告)号：US20220340493A1

公开(公告)日：2022-10-27

申请号：US17761695

申请日：2020-08-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Natsuki SATO ,  Naoki KURIZOE ,  Brahm Pal SINGH ,  Shozo OSHIO

IPC: C04B35/453 ,  C04B35/645 ,  B32B9/00 ,  B32B9/04 ,  B32B9/02

Abstract: A plant structure includes a ceramic member including at least one of an oxide or an oxide hydroxide as a main component and substantially including no hydrate, and a plant-derived substance directly fixed to the ceramic member without interposing an adhesive substance different from a ceramic material making up the ceramic member. A building member and an interior member each include the plant structure.

公开(公告)号：US20210113076A1

公开(公告)日：2021-04-22

申请号：US17040615

申请日：2019-02-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi ABE ,  Shozo OSHIO

IPC: A61B1/06 ,  A61B1/07 ,  G02B23/24 ,  A61B1/04

Abstract: An endoscope light emitting device (1) is a light emitting device for use in a fluorescence imaging method. The endoscope light emitting device includes: a solid-state light emitting element (2); and a wavelength converter (3) including a first phosphor (4) that emits first wavelength-converted light (7), wherein the first wavelength-converted light has a light component across at least a whole of a wavelength range of 700 nm or more and 800 nm or less. An endoscope (11) includes the endoscope light emitting device. A fluorescence imaging method is a method using the endoscope light emitting device or the endoscope, and includes the steps of: administering a fluorescent drug to a subject; and applying the first wavelength-converted light (7) to the subject with whom the fluorescent drug has made contact.

公开(公告)号：US20190280166A1

公开(公告)日：2019-09-12

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

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：US20190194538A1

公开(公告)日：2019-06-27

申请号：US16326191

申请日：2017-07-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi ABE ,  Shozo OSHIO

IPC: C09K11/77 ,  H01L33/50

CPC classification number: C09K11/7706 ,  C09K11/7774 ,  H01L33/502 ,  H01L33/505 ,  H01L33/507 ,  H01S5/005 ,  H01S5/32341 ,  H01S5/4087

Abstract: A phosphor is a phosphor composed by containing Ce3+ as an emission center in a matrix garnet compound having a garnet structure. Then, in the matrix garnet compound, a part of Ca that composes a crystal of Lu2CaMg2(SiO4)3 is replaced by Mg. Moreover, a light emitting device includes the above-mentioned phosphor. In this way, it is possible to provide a garnet phosphor in which temperature quenching is reduced without largely shifting the light emission peak wavelength from that of a Lu2CaMg2(SiO4)3:Ce3+ phosphor, and to provide a light emitting device using the garnet phosphor.

公开(公告)号：US20170343188A1

公开(公告)日：2017-11-30

申请号：US15534185

申请日：2015-11-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shozo OSHIO ,  Shinji SHIBAMOTO

IPC: F21V9/16 ,  F21K9/64 ,  C09K11/77 ,  F21Y2115/30

CPC classification number: F21V9/30 ,  C09K11/7774 ,  F21K9/64 ,  F21Y2115/30 ,  H01S5/005 ,  H01S5/32341 ,  H01S5/4012

Abstract: A light-emitting device 1 according to the present invention includes: a solid-state light-emitting element 10 that radiates laser light; and a wavelength converter 50 including plural types of phosphors which receive the laser light and radiate light. The phosphors included in the wavelength converter 50 are substantially composed of Ce3+-activated phosphors. The above-described light-emitting device includes at least a warm-color Ce3+-activated phosphor that receives the laser light and radiates light having a light emission peak within a wavelength range of 580 nm or more to less than 660 nm, and light-emitting components radiated by the phosphors are composed of only light-emitting components derived from Ce3+.

公开(公告)号：US20240347677A1

公开(公告)日：2024-10-17

申请号：US18292043

申请日：2022-06-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryosuke SHIGITANI ,  Mitsuru NITTA ,  Shozo OSHIO

IPC: H01L33/50

CPC classification number: H01L33/502 ,  H01L33/507

Abstract: Provided is a light emitting device including a solid-state light-emitting element that emits primary light, a wavelength converter that includes a phosphor containing a fluorescent ion which absorbs the primary light on the basis of a forbidden transition-type electronic energy transition, and an optical member that reflects the primary light while transmitting fluorescence emitted by the fluorescent ion. The solid-state light-emitting element is arranged on a side of one surface of the wavelength converter and the optical member is arranged on a side of the other surface. The fluorescence emitted by the fluorescent ion passes through the optical member and is output to the outside of the light emitting device. An electronic apparatus includes the above-described light emitting device.