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公开(公告)号:US20180180250A1
公开(公告)日:2018-06-28
申请号:US15855573
申请日:2017-12-27
Applicant: NICHIA CORPORATION
Inventor: Yuichi YAMADA , Motokazu YAMADA
IPC: F21V7/00 , F21V3/00 , F21K9/64 , H01L33/46 , H01L33/48 , H01L33/54 , H01L33/50 , H01L33/60 , H01L33/62 , H01L25/075
CPC classification number: F21V7/0083 , F21K9/64 , F21V3/00 , F21V3/02 , F21V9/30 , F21V13/12 , F21V17/002 , F21Y2105/16 , F21Y2115/10 , H01L25/0753 , H01L33/46 , H01L33/486 , H01L33/502 , H01L33/507 , H01L33/54 , H01L33/60 , H01L33/62
Abstract: A light emitting device includes: a base; a light emitting element; a light reflective film located on an upper surface of the light emitting element; and a encapsulant. A ratio of a maximum width (Wmax) of the encapsulant with respect to a maximum width of the light emitting element, in a side view, is 2 or more. An outer shape of a part of the encapsulant located within a range of elevation angles that is in a range of 10° to 50° from a center of a mounting region at an upper surface of the base on which the light emitting element is mounted is formed to have a curved surface. A ratio (r/Wmax) of a radius of curvature (r) of the curved surface with respect to the maximum width (Wmax) of the encapsulant, in a side view, is in a range of 0.25 to 0.50.
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公开(公告)号:US20180080625A1
公开(公告)日:2018-03-22
申请号:US15705057
申请日:2017-09-14
Applicant: NICHIA CORPORATION
Inventor: Motokazu YAMADA , Takeshi TAMURA , Hiroshi FUJIMORI
Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; a light diffusion plate; a half mirror positioned between the light diffusion plate and the plurality of light sources; and a plurality of diffuse reflectors positioned between the mounting board and the light diffusion plate, and above at least part of each emission face of the plurality of light sources.
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公开(公告)号:US20180006201A1
公开(公告)日:2018-01-04
申请号:US15701857
申请日:2017-09-12
Applicant: Nichia Corporation
Inventor: Motokazu YAMADA
IPC: H01L33/56 , H05K1/18 , F21V21/08 , H01L25/075 , H01L33/44 , H01L33/62 , F21S4/24 , H05K3/00 , H01L33/08 , H01L33/54 , F21Y2103/10 , F21Y2115/10
CPC classification number: H01L33/44 , F21S4/24 , F21V21/0808 , F21Y2101/00 , F21Y2103/10 , F21Y2115/10 , H01L25/0753 , H01L33/08 , H01L33/54 , H01L33/56 , H01L33/62 , H01L2224/48091 , H01L2224/73204 , H01L2224/73265 , H05K1/189 , H05K3/0061 , H05K2201/10106 , H01L2924/00014
Abstract: A light emitting device includes a flexible substrate, at least one light emitting element, a sealing resin, an adhesion layer and a support member. The flexible substrate includes a flexible base member and a plurality of wiring portions disposed on one surface of the base member. At least one light emitting element is arranged on a first surface of the flexible substrate and electrically connected to the wiring portions. The sealing resin seals the at least one light emitting element. The adhesion layer and the support member are arranged in this order on a second surface of the flexible substrate different from the first surface of the flexible substrate. The support member has a recess in a region corresponding at least to a region on the first surface where the at least one light emitting element is arranged.
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公开(公告)号:US20170345974A1
公开(公告)日:2017-11-30
申请号:US15608791
申请日:2017-05-30
Applicant: NICHIA CORPORATION
Inventor: Yuichi YAMADA , Motokazu YAMADA
IPC: H01L33/44 , H01L33/38 , H01L33/62 , H01L33/50 , H01L33/26 , H01L33/20 , H01L33/40 , H01L33/60 , H01L33/54
Abstract: A light emitting device includes: a substrate; a light emitting element disposed on the substrate, the light emitting element having an upper surface and a lateral surface; a reflecting layer located on the upper surface of the light emitting element; a first light-transmissive member having a first surface in contact with the lateral surface of the light emitting element, and a second surface that is inclined toward the substrate in a direction outward from the light emitting element; and a second light-transmissive member in contact with the second surface and covering the light emitting element. A refractive index of the first light-transmissive is smaller than a refractive index of the second light-transmissive member.
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公开(公告)号:US20160260873A1
公开(公告)日:2016-09-08
申请号:US15061390
申请日:2016-03-04
Applicant: NICHIA CORPORATION
Inventor: Motokazu YAMADA , Tomonori OZAKI
Abstract: A light emitting device having a light-emitting element, a covering resin covering the light-emitting element, a wavelength converting material contained in the covering resin, and a light diffusing agent contained in the covering resin is provided. The light diffusing agent contains glass particles. A first refractive index n1 of the covering resin at a peak wavelength of a light emitted by the light-emitting element and at 25° C. is in a range of 1.48 to 1.60, a second refractive index n2 of the covering resin at the peak wavelength and at 100° C. is at least 0.0075 lower than the first refractive index n1, and a third refractive index n3 of the light diffusing agent at the peak wavelength and at 25° C. is higher than the first refractive index n1.
Abstract translation: 提供了具有发光元件的发光器件,覆盖发光元件的覆盖树脂,包含在覆盖树脂中的波长转换材料和包含在覆盖树脂中的光漫射剂。 光扩散剂含有玻璃颗粒。 在由发光元件发射的光的峰值波长和25℃下的覆盖树脂的第一折射率n1在1.48至1.60的范围内,覆盖树脂在峰值处的第二折射率n2 并且在100℃下比第一折射率n1低至少0.0075,并且光扩散剂在峰值波长和25℃下的第三折射率n3高于第一折射率n1。
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公开(公告)号:US20140254182A1
公开(公告)日:2014-09-11
申请号:US14197560
申请日:2014-03-05
Applicant: NICHIA CORPORATION
Inventor: Motokazu YAMADA
IPC: F21V19/00
CPC classification number: H05K3/284 , F21V19/005 , H01L27/156 , H01L2224/73204 , H05K1/189 , H05K3/3436 , H05K2201/0195 , H05K2201/09409 , H05K2201/10106
Abstract: A light emitting device which can prevent bending of the substrate member. The light emitting device includes a flexible substrate member, a plurality of light emitting elements, two first sealing members, and a second sealing member. The two first sealing members are disposed in-line on the substrate member and arranged in the longitudinal direction. The second sealing member is arranged extending in the longitudinal direction on the substrate member, and is offset in a lateral direction from the two first sealing members. The second sealing member is further arranged to extend across a first gap formed between the two first sealing members when viewed from a lateral direction, and overlap at least a portion of each of the two first sealing members. The second sealing member comprises a resin having transparency to light.
Abstract translation: 一种能够防止基板部件弯曲的发光装置。 发光器件包括柔性衬底构件,多个发光元件,两个第一密封构件和第二密封构件。 两个第一密封构件沿着纵向方向布置在基板构件上。 所述第二密封构件沿所述纵向方向布置在所述基底构件上,并且沿着所述两个第一密封构件的横向方向偏移。 第二密封构件进一步布置成横跨从横向方向观察时形成在两个第一密封构件之间的第一间隙,并且与两个第一密封构件中的每一个的至少一部分重叠。 第二密封构件包括对光透明的树脂。
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公开(公告)号:US20140077236A1
公开(公告)日:2014-03-20
申请号:US14025962
申请日:2013-09-13
Applicant: NICHIA CORPORATION
Inventor: Motokazu YAMADA
IPC: H01L33/44
CPC classification number: H01L33/56 , F21S4/24 , F21V21/0808 , F21Y2103/10 , F21Y2115/10 , H01L25/0753 , H01L33/08 , H01L33/44 , H01L33/54 , H01L33/62 , H01L2224/48091 , H01L2224/73204 , H01L2224/73265 , H05K1/189 , H05K3/0061 , H05K2201/10106 , H01L2924/00014
Abstract: A light emitting device includes a flexible substrate including a flexible base member and a plurality of wiring portions disposed on one surface of the base member, at least one light emitting element arranged on a first surface of the flexible substrate and electrically connected to the respective wiring portions, a sealing resin sealing the light emitting element, and an adhesion layer arranged on a second surface of the flexible substrate. The adhesion layer has a portion corresponding at least to a region on the first surface where the at least one light emitting element is arranged. The portion has a thickness smaller than a thickness of regions other than the portion.
Abstract translation: 发光装置包括:柔性基板,包括柔性基底构件和设置在基底构件的一个表面上的多个布线部分;至少一个发光元件,布置在柔性基板的第一表面上并电连接到各个布线 密封发光元件的密封树脂和布置在柔性基板的第二表面上的粘合层。 粘合层具有至少对应于第一表面上布置有至少一个发光元件的区域的部分。 该部分的厚度小于该部分以外的区域的厚度。
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公开(公告)号:US20240405171A1
公开(公告)日:2024-12-05
申请号:US18663651
申请日:2024-05-14
Applicant: NICHIA CORPORATION
Inventor: Motokazu YAMADA
IPC: H01L33/50 , G02F1/13357 , H01L33/58
Abstract: A light-emitting device includes: a light-emitting element configured to emit first light; a light-transmissive member covering an upper surface of the light-emitting element and including a wavelength conversion material configured to absorb a portion of the first light and emit second light; a light-scattering member disposed on the light-transmissive member, including a light-scattering material, and having a higher reflectance at a peak wavelength of the first light than at a peak wavelength of the second light; and a light-adjustment member located in or on the light-scattering member and having either (i) a higher absorptance at the peak wavelength of the second light than at the peak wavelength of the first light, or (ii) a higher reflectance at the peak wavelength of the second light than at the peak wavelength of the first light. A lateral surface of the light-transmissive member is exposed from the light-scattering member and the light-adjustment member.
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公开(公告)号:US20240069380A1
公开(公告)日:2024-02-29
申请号:US18453095
申请日:2023-08-21
Applicant: NICHIA CORPORATION
Inventor: Motokazu YAMADA
IPC: G02F1/13357
CPC classification number: G02F1/133606 , G02F1/133605 , G02F2202/28
Abstract: A planar light source includes a substrate, a reflective member having a plurality of openings and at least one slit, and a light source disposed in each of the openings. The plurality of openings are arranged in m rows along a first direction and in n columns along a second direction that intersects the first direction. The at least one slit includes at least one first slit arranged in a first region and intersecting a first virtual straight line at a prescribed position in the first region. The first virtual straight line is parallel to the first direction. The first region is located between one or more openings in a kth row (k is an integer equal to or greater than 1 and less than or equal to m−1) and one or more openings in a (k+1)th row and extends in the first direction.
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公开(公告)号:US20230151945A1
公开(公告)日:2023-05-18
申请号:US18157217
申请日:2023-01-20
Applicant: NICHIA CORPORATION
Inventor: Motokazu YAMADA , Takeshi TAMURA , Hiroshi FUJIMORI
IPC: F21V7/22 , G02F1/13357 , F21V9/30 , F21V7/00 , F21V13/08
CPC classification number: F21V7/22 , G02F1/133606 , G02F1/133605 , G02F1/133611 , G02F1/133603 , F21V9/30 , F21V7/0083 , F21V13/08 , G02F1/133557
Abstract: A light emitting device includes: a mounting board; a light source positioned on the mounting board; a light diffusion plate; a diffuse reflector positioned between the mounting board and the light diffusion plate, and above at least part of an emission face of the light source; and a wavelength conversion layer positioned on or above the diffuse reflector.
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