-
公开(公告)号：US20160111610A1
公开(公告)日：2016-04-21
申请号：US14600372
申请日：2015-01-20
Applicant: NICHIA CORPORATION
Inventor： Akihiro OTA , Seitaro AKAGAWA , Hirofumi ICHIKAWA , Yasunori SHIMIZU
CPC classification number: H01L33/56 , H01L21/02601 , H01L33/486 , H01L33/502 , H01L33/504 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2251/5369 , H01L2924/181 , H01L2933/0091 , H01L2924/00014 , H01L2924/00012
Abstract: Provided a light emitting device comprising: a package; a light emitting element disposed in the package; an encapsulation member that covers the light emitting element, the encapsulation member being formed from a resin composition that contains a fluorescent material, a resin, and nanoparticles selected from at least one of the group consisting of aluminum oxide nanoparticles, titanium oxide nanoparticles, zinc oxide nanoparticles, zirconium oxide nanoparticles, and silicon oxide nanoparticles, wherein when the resin composition includes silicon oxide nanoparticles, the content of the silicon oxide nanoparticles is 0.02 to 5 mass parts relative to 100 mass parts of the resin; and wherein the fluorescent material includes a Mn4+ activated red-light emitting fluorescent material having a chemical composition represented by the formula (I): A2[M1-xMn4+xF6] (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 x satisfies 0
Abstract translation: 提供一种发光器件，包括：封装; 设置在所述封装中的发光元件; 覆盖所述发光元件的封装构件，所述封装构件由含有荧光材料的树脂组合物，树脂和选自氧化铝纳米颗粒，氧化钛纳米颗粒，氧化锌中的至少一种的纳米颗粒形成 纳米颗粒，氧化锆纳米颗粒和氧化硅纳米颗粒，其中当树脂组合物包含氧化硅纳米颗粒时，氧化硅纳米颗粒的含量相对于100质量份树脂为0.02〜5质量份; 并且其中所述荧光材料包括具有由式（I）表示的化学组成的Mn4 +活化的红色发光荧光材料：A2 [M1-xMn4 + xF6]（I）其中A是至少一种选自以下的阳离子： 的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，x满足0
-
公开(公告)号：US20240159952A1
公开(公告)日：2024-05-16
申请号：US18507017
申请日：2023-11-10
Applicant: NICHIA CORPORATION
Inventor： Seitaro AKAGAWA , Takuya NAKABAYASHI , Masato OKUDA , Yasunori SHINOMIYA
IPC: F21V8/00
CPC classification number: G02B6/0023
Abstract: A planar light source includes a support member; a light guide member including a first surface located proximate to an upper surface of the support member, a second surface opposite to the first surface, and a through hole extending from the first surface to the second surface; a light source unit including a light-emitting element and a wavelength conversion member that covers an upper surface and a lateral surface of the light-emitting element and disposed on the support member at a position of the through hole; a light-transmissive member disposed between the light source unit and the light guide member in the through hole; and a light adjustment member disposed on the light source unit and the light-transmissive member. An upper surface of the wavelength conversion member of the light source unit is located higher than the second surface of the light guide member.
-
公开(公告)号：US20210233956A1
公开(公告)日：2021-07-29
申请号：US17301761
申请日：2021-04-13
Applicant: NICHIA CORPORATION
Inventor： Seitaro AKAGAWA , Takeshi MORIKAWA , Kentaro NISHIGAKI
Abstract: A light emitting device includes at least three light emitting elements arranged side by side, and one or more light transmissive members each containing a phosphor and covering the light emitting elements. The at least three light emitting elements include two outer light emitting elements arranged on outer sides, and an inner light emitting element arranged between the two outer light emitting elements and having a different peak emission wavelength than a peak emission wavelength of the two outer light emitting elements. The phosphor has a longer peak emission wavelength than the peak emission wavelengths of the outer light emitting elements and the peak emission wavelength of the inner light emitting element. The two outer light emitting elements and the inner light emitting element are connected in series.
-
Patent Agency Ranking
公开(公告)号：US20210096374A1
公开(公告)日：2021-04-01
申请号：US16988753
申请日：2020-08-10
Applicant: Sharp Kabushiki Kaisha , Nichia Corporation
Inventor： Tokumi HAYASHI , Kenichi HATSUDA , Seitaro AKAGAWA , Takeshi MORIKAWA
IPC: G02B27/01 , G02F1/13357
Abstract: A head-mounted display to be mounted on a head of the user includes a display panel to display an image, a lighting device to supply light to the display device, the lighting device including at least one light source including a blue light emitting element emitting blue light, and a red phosphor to emit red light when excited by the blue light from the blue light emitting element, the red phosphor including a complex fluoride red phosphor and a nitride red phosphor having a content ratio smaller than that of the complex fluoride red phosphor, a lighting controller to control driving of the light source in synchronization with the image display by the display device so that a one-frame display period in the display device includes a turn-on period and a turn-off period, and a lens.
-
公开(公告)号：US20200284968A1
公开(公告)日：2020-09-10
申请号：US16810420
申请日：2020-03-05
Applicant: NICHIA CORPORATION
Inventor： Ryohei YAMASHITA , Toshinobu KATSUMATA , Seitaro AKAGAWA , Toshiaki MORIWAKI
IPC: F21V8/00
Abstract: A light emitting module includes: a lightguide plate having an upper surface and a lower surface opposite to the upper surface, the upper surface including a first hole; a light emitting element on a lower surface side of the lightguide plate, the light emitting element facing the first hole; and a reflective resin layer, wherein the first hole includes a first portion and a second portion, the first portion includes a first lateral surface sloping with respect to the upper surface, the second portion has a second lateral surface sloping with respect to the upper surface, the second lateral surface being present between an opening in the upper surface and the first lateral surface of the first portion, and the reflective resin layer is located in the first portion of the first hole.
-
公开(公告)号：US20170229512A1
公开(公告)日：2017-08-10
申请号：US15426645
申请日：2017-02-07
Applicant: NICHIA CORPORATION
Inventor： Seitaro AKAGAWA , Takeshi MORIKAWA , Kentaro NISHIGAKI
CPC classification number: H01L27/156 , G02B6/0073 , H01L25/0753 , H01L33/20 , H01L33/486 , H01L33/502 , H01L33/507 , H01L2224/16245 , H01L2224/48137 , H01L2224/48247 , H01L2924/181 , H01L2924/00012
Abstract: A light emitting device includes at least three light emitting elements arranged side by side, and one or more light transmissive members each containing a phosphor and covering the light emitting elements. The at least three light emitting elements include two outer light emitting elements arranged on outer sides, and an inner light emitting element arranged between the two outer light emitting elements and having a different peak emission wavelength than a peak emission wavelength of the two outer light emitting elements. The phosphor has a longer peak emission wavelength than the peak emission wavelengths of the outer light emitting elements and the peak emission wavelength of the inner light emitting element. The two outer light emitting elements and the inner light emitting element are connected in series.
-
公开(公告)号：US20170205565A1
公开(公告)日：2017-07-20
申请号：US15407377
申请日：2017-01-17
Applicant: NICHIA CORPORATION
Inventor： Seitaro AKAGAWA , Takeshi MORIKAWA , Yusaku ACHI , Kentaro NISHIGAKI
CPC classification number: G02B6/0073 , G02B6/0068 , G02B6/0083 , H01L25/0753 , H01L25/105 , H01L27/156 , H01L33/50 , H01L2224/16245 , H01L2224/48137
Abstract: A light-emitting device includes: one or more first light-emitting elements each having a peak wavelength in a range from 430 nm to less than 490 nm; a second light-emitting element having a peak wavelength Y in a range from 490 nm to less than a wavelength X; a third light-emitting element having a peak wavelength Z in a range from more than the wavelength X to 570 nm; and a phosphor or a fourth light-emitting element having a peak wavelength in a range from 580 nm to 680 nm. At least one of the second and third light-emitting elements is connected to at least one of the first light-emitting elements in series. The wavelength X is in a range from more than 490 nm to less than 570 nm with an absolute value of difference between |X−Y| and |X−Z| being 10 nm or less.
-
公开(公告)号：US20160322542A1
公开(公告)日：2016-11-03
申请号：US15207003
申请日：2016-07-11
Applicant: Nichia Corporation
Inventor： Seitaro AKAGAWA , Tomokazu YOSHIDA
CPC classification number: H01L33/502 , C09K11/617 , C09K11/7734 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2924/181 , H01L2933/0041 , H01L2924/00014 , H01L2924/00012
Abstract: A method of manufacturing a light emitting device can be provided. The method includes: providing a package having side walls which define a recess; disposing a light emitting element in the recess; injecting a sealing material in the recess of the package, sedimenting centrifugally the fluorescent material particles toward a bottom surface in the recess to form a sealing member that comprises a first sealing member portion and a second sealing member portion; and curing the binder to form a cured sealing member. The sealing material includes a binder and fluorescent material particles that includes particles of fluoride fluorescent material that have a composition including tetravalent manganese ions, at least one selecting from the group consisting of alkali metal elements and NH4+ and at least one selecting from the group consisting of Group 4 elements and Group 14 elements. The first sealing member portion covers the light emitting element, and includes a first binder portion and the fluorescent material particles located in the first binder portion. The second sealing member portion covers the first sealing portion, and includes a second binder portion and substantially no fluorescent material particles located in the second binder portion. The particles of fluoride fluorescent material include a surface region and an inner region, both the surface region and the inner region comprising tetravalent manganese ions. A tetravalent manganese ion concentration of the surface region of the particles of fluoride fluorescent material is lower than a tetravalent manganese ion concentration of the inner region of the particles of fluoride fluorescent material.
Abstract translation: 可以提供制造发光器件的方法。 该方法包括：提供具有限定凹部的侧壁的包装; 将发光元件设置在所述凹部中; 将密封材料注入到所述封装的凹部中，将所述荧光材料颗粒离心沉淀到所述凹部中的底表面，以形成包括第一密封构件部分和第二密封构件部分的密封构件; 并固化粘合剂以形成固化的密封构件。 密封材料包括粘合剂和荧光材料颗粒，其包括具有包含四价锰离子的组成的氟化物荧光材料的颗粒，至少一种选自碱金属元素和NH 4 +，以及至少一种选自由以下组成的组： 第4组元素和第14组元素。 第一密封构件部分覆盖发光元件，并且包括位于第一粘结部分中的第一粘结部分和荧光材料颗粒。 第二密封构件部分覆盖第一密封部分，并且包括位于第二粘结部分中的第二粘合部分和基本上不存在荧光材料颗粒。 氟化物荧光材料的颗粒包括表面区域和内部区域，表面区域和内部区域都包含四价锰离子。 氟化物荧光体的粒子的表面积的四价锰离子浓度低于氟化物荧光体的粒子的内部区域的四价锰离子浓度。
-
-
-
-
-
-
-
Search Results
18
records
(took 0.014 seconds)
