公开(公告)号：US20210230047A1

公开(公告)日：2021-07-29

申请号：US17232426

申请日：2021-04-16

申请人： NIPPON ELECTRIC GLASS CO., LTD.

发明人： Naoki FUJITA ,  Takashi MURATA

IPC分类号： C03C4/12 ,  C03C3/066 ,  C03C3/078 ,  C03C3/087 ,  C03C3/093 ,  C03C3/089 ,  C09K11/72 ,  C03C3/064 ,  C03C3/085 ,  H01L33/50 ,  C03C3/083 ,  C09K11/61 ,  C03C3/062 ,  C03C3/091 ,  C09K11/00 ,  G02B5/20 ,  C09K11/64 ,  F21K9/64 ,  C03C3/095 ,  C03C3/097 ,  C09K11/77

摘要： Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO2, 0 to 20% B2O3, 0 to 25% Al2O3, 0 to 3% Li2O, 0 to 3% Na2O, 0 to 3% K2O, 0 to 3% Li2O+Na2O+K2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 4% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphate phosphor.

公开(公告)号：US11060020B2

公开(公告)日：2021-07-13

申请号：US16463652

申请日：2017-12-04

申请人： NGK Spark Plug Co., Ltd.

发明人： Toshimitsu Kikuchi ,  Yoshifumi Tsutai ,  Takashi Abe ,  Ai Hayasaka

IPC分类号： C09K11/02 ,  C09K11/64

摘要： A wavelength conversion member is provided which includes a phosphor layer having an increased pencil hardness and thereby has a reduced risk of breakage such as scattering of fragments of the phosphor layer or separation of the phosphor layer.
A substrate 12 is made of sapphire, and a phosphor layer 14 is disposed on the substrate 12 and includes phosphor particles 16 and a light transmissive inorganic material 22. The phosphor layer 14 has a pencil hardness of 5B or above. The high hardness of the phosphor layer 14 reduces the risk of breakage such as the phosphor layer 14 being scattered as fragments or being separated from the substrate 12.

公开(公告)号：US11034609B2

公开(公告)日：2021-06-15

申请号：US16091115

申请日：2017-06-08

申请人： NIPPON ELECTRIC GLASS CO., LTD.

发明人： Naoki Fujita ,  Takashi Murata

IPC分类号： C03C4/12 ,  C03C3/066 ,  C03C3/078 ,  C03C3/087 ,  C03C3/093 ,  C03C3/089 ,  C09K11/72 ,  C03C3/064 ,  C03C3/085 ,  H01L33/50 ,  C03C3/083 ,  C09K11/61 ,  C03C3/062 ,  C03C3/091 ,  C09K11/00 ,  G02B5/20 ,  C09K11/64 ,  F21K9/64 ,  C03C3/095 ,  C03C3/097 ,  C09K11/77 ,  F21S41/16 ,  F21S41/141

摘要： Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO2, 0 to 20% B2O3, 0 to 25% Al2O3, 0 to 3% Li2O, 0 to 3% Na2O, 0 to 3% K2O, 0 to 3% Li2O+Na2O+K2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 4% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphate phosphor.

公开(公告)号：US20210172583A1

公开(公告)日：2021-06-10

申请号：US16763327

申请日：2018-11-29

申请人： NIPPON ELECTRIC GLASS CO., LTD.

发明人： Tadahito FURUYAMA

IPC分类号： F21V9/32 ,  C09K5/14 ,  C09K11/02 ,  C09K11/77 ,  C09K11/64 ,  C09K11/08

摘要： Provided are: a wavelength conversion member capable of reducing the decrease in luminescence intensity with time and the melting of component materials when irradiated with high-power excitation light; a method for manufacturing the same; and a light-emitting device using the wavelength conversion member. A wavelength conversion member 10 is made of a phosphor powder 2 and a thermally conductive filler 3 both dispersed into an inorganic binder 1, a refractive index difference between the inorganic binder 1 and the thermally conductive filler 3 being 0.2 or less, a volume ratio of a content of the inorganic binder 1 to a content of the thermally conductive filler 3 being 40:60 to 5:95.

公开(公告)号：US10988688B2

公开(公告)日：2021-04-27

申请号：US15666557

申请日：2017-08-01

申请人： STANLEY ELECTRIC CO., LTD.

发明人： Takuya Kazama ,  Wataru Tamura ,  Yasuyuki Miyake

IPC分类号： C09K11/64 ,  C09K11/08 ,  C09K11/56 ,  H01L33/32 ,  C09K11/62 ,  C09K11/02 ,  B82Y5/00 ,  C30B7/14 ,  C30B29/40 ,  H01L33/50 ,  B82Y20/00 ,  B82Y40/00

摘要： A quantum dot manufacturing method comprises (a) dispersing, in a solvent, nano-seed particles whose crystal planes are exposed, and (b) growing semiconductor layers on the exposed crystal planes of the nano-seed particles in the solvent.

公开(公告)号：US20210095201A1

公开(公告)日：2021-04-01

申请号：US17035233

申请日：2020-09-28

申请人： LUMILEDS HOLDING B.V.

发明人： Peter Josef SCHMIDT ,  Detlef WIECHERT ,  Cristian DAN

IPC分类号： C09K11/77 ,  H01L33/30 ,  H01L33/50 ,  C09K11/64 ,  C01G15/00 ,  C09K11/08

摘要： A wavelength converting structure is disclosed, the wavelength converting structure including a spinel type SWIR phosphor material having emission wavelengths in the range of 1000 to 1700 nm, the SWIR phosphor material including AE1-x-zAz+0.5(x-y)D2+0.5(x-y)-z-u EzO4:Niy,Cru where AE=Mg, Zn, Co, or Be, or mixtures thereof, A=Li, Na, Cu, or Ag, or mixtures thereof, D=Ga, Al, B, In, or Sc, or mixtures thereof, and E=Si, Ge, Sn, Ti, Zr, or Hf, or mixtures thereof; where 0≤x≤1, 0

公开(公告)号：US20200318004A1

公开(公告)日：2020-10-08

申请号：US16905340

申请日：2020-06-18

申请人： NICHIA CORPORATION

发明人： Kazuya NISHIMATA ,  Tomokazu YOSHIDA ,  Shoji HOSOKAWA

IPC分类号： C09K11/77 ,  C09K11/55 ,  C09K11/57 ,  C09K11/64 ,  H01L33/50

摘要： Disclosed are a method of producing an aluminate fluorescent material, such an aluminate fluorescent material, and a light emitting device. The aluminate fluorescent material production method includes: subjecting a first mixture prepared by mixing a compound containing at least one metal element selected from the group consisting of Ba, Sr and Ca, and at least one compound selected from the group consisting of a compound containing Mn and a compound containing Eu, and a compound containing Al, in which a compound containing Mg may be optionally mixed, to first heat treatment to give a first calcined product having an average particle diameter D1, as measured according to a Fisher Sub-Sieve Sizer method, of 6 μm or more; and subjecting a second mixture prepared by mixing a compound containing at least one metal element selected from the group consisting of Ba, Sr and Ca, at least one compound selected from the group consisting of a compound containing Mn and a compound containing Eu, and a compound containing Al, and the first calcined product whose content is 10% by mass or more and 90% by mass or less relative to the total amount of the second mixture, in which a compound containing Mg may be optionally mixed, to second heat treatment to give a second calcined product.

公开(公告)号：US10797203B2

公开(公告)日：2020-10-06

申请号：US16280045

申请日：2019-02-20

申请人： NICHIA CORPORATION

发明人： Daisuke Iwakura ,  Yoshiki Inoue

IPC分类号： H01L33/46 ,  H01L33/50 ,  H01L33/60 ,  C09K11/77 ,  C09K11/64 ,  C09K11/61 ,  H01L33/56 ,  H01L33/54

摘要： A light emitting device includes a light-transmissive member including a first surface, a second surface opposite to the first surface, and third surfaces connected to the first surface and the second surface. A phosphor layer faces the second surface of the light-transmissive member. A reflective member faces side surfaces of the phosphor layer and the third surfaces of the light-transmissive member. The light-emitting element has a top surface facing the phosphor layer, a bottom surface opposite to the top surface, and side surfaces connecting the top surface and the bottom surface. The phosphor layer has a bonding surface facing the light emitting element. A first dielectric multilayer film is arranged on at least one of side surfaces of the light-emitting element without being provided on the bonding surface of the phosphor layer.

公开(公告)号：US20200287079A1

公开(公告)日：2020-09-10

申请号：US16294835

申请日：2019-03-06

申请人： BOLB INC.

发明人： JIANPING ZHANG ,  YING GAO ,  LING ZHOU

IPC分类号： H01L33/06 ,  H01L33/32 ,  H01L33/02 ,  H01L31/0352 ,  H01L31/0304 ,  C09K11/64 ,  C09K11/08

摘要： Heterostructures containing one or more sheets of positive charge, or alternately stacked AlGaN barriers and AlGaN wells with specified thickness are provided. Also provided are multiple quantum well structures and p-type contacts. The heterostructures, the multiple quantum well structures and the p-type contacts can be used in light emitting devices and photodetectors.

公开(公告)号：US10745616B2

公开(公告)日：2020-08-18

申请号：US15560602

申请日：2016-03-02

申请人： MERCK PATENT GMBH

发明人： Aleksander Zych ,  Mathias Rapphahn ,  Ralf Petry ,  Ingo Koehler ,  Andreas Benker ,  Stefan Tews

IPC分类号： C09K11/77 ,  H01L33/50 ,  C09K11/08 ,  C09K11/59 ,  H01J61/44 ,  C09K11/64 ,  H01J11/42

摘要： The present invention relates to alkaline earth aluminate phosphors, to a process for the preparation thereof and to the use thereof as conversion phosphors. The present invention also relates to an emission-converting material comprising at least the conversion phosphor according to the invention, and to the use thereof in light sources, in particular pc-LEDs (phosphor converted light emitting devices). The present invention furthermore relates to light sources, in particular pc-LEDs, and to lighting units which comprise a primary light source and the emission-converting material according to the invention.