公开(公告)号：US20240093846A1

公开(公告)日：2024-03-21

申请号：US18467677

申请日：2023-09-14

Applicant: NICHIA CORPORATION

Inventor： Yuya GOTO ,  Koji KAJIKAWA ,  Yuji SATO

IPC: F21S41/176

CPC classification number: F21S41/176

Abstract: The vehicle light-emitting device includes a light-emitting element having a peak emission wavelength of 400 nm or greater and 510 nm or less, and a fluorescent member including a first phosphor excited by light emitted by the light-emitting element and emitting light having a peak emission wavelength of 480 nm or greater and 530 nm or less a second phosphor excited by the light emitted by the light-emitting element and emitting light having a peak emission wavelength of 540 nm or greater and 600 nm or less. The vehicle light-emitting device emits light in a region AL in a CIE1931 chromaticity diagram as defined in the present disclosure.

公开(公告)号：US20180134955A1

公开(公告)日：2018-05-17

申请号：US15849000

申请日：2017-12-20

Applicant: NICHIA CORPORATION

Inventor： Masato YOSHIDA ,  Koji KAJIKAWA

IPC: C09K11/61 ,  H01L33/56 ,  H01L33/50 ,  C09K11/02 ,  C09K11/77

CPC classification number: C09K11/617 ,  C09K11/025 ,  C09K11/7709 ,  H01L33/504

Abstract: A method for producing a fluorescent material can be provided. The method includes preparing fluorescent material particles that contain a fluoride having a composition including Mn, at least one selected from the group consisting of alkali metal elements and NH4+, and at least one selected from the group consisting of Group 4 elements and Group 14 elements; causing at least one cation selected from rare-earth elements and a phosphate ion to come into contact with each other in a liquid medium containing the fluorescent material particles to obtain rare-earth phosphate-adhered fluorescent material particles including the fluorescent material particles to which the rare-earth phosphate is adhered; and separating the rare-earth phosphate-adhered fluorescent material particles from the liquid medium.

公开(公告)号：US20170283695A1

公开(公告)日：2017-10-05

申请号：US15467155

申请日：2017-03-23

Applicant: NICHIA CORPORATION

Inventor： Masato YOSHIDA ,  Koji KAJIKAWA

IPC: C09K11/61 ,  H01L33/56 ,  H01L33/50 ,  C09K11/77 ,  C09K11/02

CPC classification number: C09K11/617 ,  C09K11/025 ,  C09K11/7709 ,  H01L33/504

Abstract: A method for producing a fluorescent material can be provided. The method includes preparing fluorescent material particles that contain a fluoride having a composition including Mn, at least one selected from the group consisting of alkali metal elements and NH4+, and at least one selected from the group consisting of Group 4 elements and Group 14 elements; causing at least one cation selected from rare-earth elements and a phosphate ion to come into contact with each other in a liquid medium containing the fluorescent material particles to obtain rare-earth phosphate-adhered fluorescent material particles including the fluorescent material particles to which the rare-earth phosphate is adhered; and separating the rare-earth phosphate-adhered fluorescent material particles from the liquid medium.

公开(公告)号：US20160289555A1

公开(公告)日：2016-10-06

申请号：US15083576

申请日：2016-03-29

Applicant: NICHIA CORPORATION

Inventor： Tsunehito NIIMI ,  Koji KAJIKAWA ,  Hirofumi OOGURI

IPC: C09K11/77 ,  H01L33/50 ,  B01J2/16 ,  C09K11/02

Abstract: A fluorescent material particle including: a particle that contains a thiogallate phosphor and a first adherent member containing boron oxide and being disposed on the surface of the particle, a method for producing the fluorescent material particles, and a light emitting device are provided.

Abstract translation: 一种荧光材料颗粒，包括：含有硫代镓酸盐荧光体的颗粒和含有氧化硼并且设置在颗粒表面上的第一粘附构件，荧光材料颗粒的制造方法和发光装置。

公开(公告)号：US20150184067A1

公开(公告)日：2015-07-02

申请号：US14581160

申请日：2014-12-23

Applicant: Nichia Corporation

Inventor： Koji KAJIKAWA ,  Kazushige FUJIO

IPC: C09K11/02 ,  C09K11/61 ,  H05B33/12

CPC classification number: C09K11/025 ,  C09K11/645 ,  H01L33/502 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2924/181 ,  H01S5/005 ,  H01S5/32341 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: A fluoride fluorescent material, comprising: a fluoride particles having a chemical composition represented by the formula (I): A2[M1-aMn4+aF6]  (I) wherein A is at least one cation selected from the group consisting of K+, Li+, Na+, Rb+, Cs+ and NH4+; M is at least one element selected from the group consisting of elements from Group 4 of the periodic table and elements from Group 14 of the periodic table; and variable a satisfies 0

Abstract translation: 1.一种氟化物荧光材料，其特征在于，具有由式（I）表示的化学组成的氟化物粒子：A2 [M1-aMn4 + aF6]（I）其中A是选自K +，Li +， Na +，Rb +，Cs +和NH4 +; M是选自元素周期表第4族元素和元素周期表第14族元素中的至少一种元素; 变量a满足0

公开(公告)号：US20150131043A1

公开(公告)日：2015-05-14

申请号：US14539034

申请日：2014-11-12

Applicant: NICHIA CORPORATION

Inventor： Atsushi YAMAMOTO ,  Takeshi MORIKAWA ,  Koji KAJIKAWA

IPC: G02F1/1335

CPC classification number: G02F1/133516 ,  G02F2001/133614

Abstract: A method of manufacturing an image display device which is configured to produce high luminance while maintaining color reproductivity and a method of efficiently selecting a combination of a light emitting device and a color filter. A method of manufacturing an image display device includes preparing a light emitting device which has a light source, a green fluorescent material and a red fluorescent material activated with tetravalent manganese ions, and configured to emit light which includes a visible light region, providing a color filter candidate which include red, green, and blue pixels in which the ratio of an integral value of the wavelength range of 560 to 640 nm with respect to the ratio of an integral value of the wavelength range of 460 to 640 nm in a spectral transmittance curve of the green pixel is 23% or greater, providing a color filter configured to satisfy a NTSC ratio of 65% or greater when the color filter candidate and the light emitting device are combined, and constructing an image display device with the use of the color filter, the light emitting device, and a controlling member for optical transmission.

Abstract translation: 一种制造图像显示装置的方法，其被配置为在保持颜色再现性的同时产生高亮度，以及有效地选择发光装置和滤色器的组合的方法。 一种制造图像显示装置的方法包括制备具有光源，绿色荧光材料和用四价锰离子活化的红色荧光材料的发光装置，并且被配置为发射包括可见光区域的光，提供颜色 滤波器候选，其包括红色，绿色和蓝色像素，其中560至640nm的波长范围的积分值的比率与在波长范围为460至640nm的光谱透射率的积分值的比率 绿色像素的曲线为23％以上，提供了一种滤色器，其配置为当滤色片候选和发光器件组合时满足65％或更大的NTSC比，并且使用图像显示装置构建图像显示装置 彩色滤光片，发光装置，以及光传输用的控制构件。