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公开(公告)号：US10141488B2
公开(公告)日：2018-11-27
申请号：US15418025
申请日：2017-01-27
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi
Abstract: A lighting device is provided. The lighting device includes a lightguide panel having an end face and a light-emitting device configured to emit light toward the end face of the lightguide panel. The light-emitting device includes a light-emitting element and a first light-transmissive member provided between the end face of the lightguide panel and the light-emitting element. The first light-transmissive member has a plurality of protrusions on a surface thereof. At least one of the plurality of protrusions is in contact with the end face of the lightguide panel.
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公开(公告)号：US09978923B2
公开(公告)日：2018-05-22
申请号：US15703591
申请日：2017-09-13
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Akira Hori
CPC classification number: H01L33/647 , H01L25/0753 , H01L33/32 , H01L33/486 , H01L33/502 , H01L33/54 , H01L33/56 , H01L33/60 , H01L33/62 , H01L33/642 , H01L2224/16225
Abstract: A light emitting device includes a substrate, a light emitting element, a sealing member, a light transmissive member and a heat dissipation terminal. The substrate includes an insulating base material which has a concave portion with an inner curved surface. The sealing member is in contact with at least a part of a side surface of the light emitting element and is formed substantially in the same plane as the substrate on a mounting surface. The light transmissive member covers an upper surface of the light emitting element and a part of an upper surface of the sealing member, side surfaces of the light transmissive member being covered with the sealing member. The heat dissipation terminal is arranged generally in the center on a second main surface of the substrate and that has a recess portion as viewed along a direction normal to the second main surface.
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公开(公告)号：US09960333B2
公开(公告)日：2018-05-01
申请号：US15246730
申请日：2016-08-25
Applicant: NICHIA CORPORATION
Inventor： Tadaaki Ikeda , Takuya Nakabayashi
IPC: H01L29/18 , H01L33/62 , H01L25/075
CPC classification number: H01L33/62 , H01L25/0753
Abstract: A light-emitting device includes a substrate having a first surface extended in a first direction, a second surface opposite to the first surface, a third surface between the first and second surfaces and extended in the first direction, and a fourth surface opposite to the third surface, a conductive member including at least four element mounting portions arranged in the first direction on the first surface, a first wiring portion on the second surface, a second wiring portion on the third surface, and a third wiring portion on the fourth surface, and first, second, third, and fourth light-emitting elements respectively mounted on the four element mounting portions. With the first, second, and third wiring portions, the first and second light-emitting elements are connected in series, the third and fourth light-emitting elements are connected in series, and the first and third light-emitting elements are connected in parallel.
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公开(公告)号：US09917236B2
公开(公告)日：2018-03-13
申请号：US15495822
申请日：2017-04-24
Applicant: NICHIA CORPORATION
Inventor： Suguru Beppu , Yoichi Bando , Hiroto Tamaki , Takuya Nakabayashi
CPC classification number: H01L33/60 , H01L33/50 , H01L2224/73253 , H01L2933/0033 , H01L2933/0041 , H01L2933/0058
Abstract: A light emitting device includes a semiconductor light emitting element; and a light reflective member having a multilayer structure and covering the side faces of the semiconductor light emitting element. The light reflective member includes: a first layer disposed on an inner, semiconductor light emitting element side, the first layer comprising a light-transmissive resin containing a light reflective substance, and a second layer disposed in contact with an outer side of the first layer, the second layer comprising a light-transmissive resin containing the light reflective substance at a lower content than that of the first layer.
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公开(公告)号：US09406852B2
公开(公告)日：2016-08-02
申请号：US14716670
申请日：2015-05-19
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Akira Hori
CPC classification number: H01L33/647 , H01L25/0753 , H01L33/32 , H01L33/486 , H01L33/502 , H01L33/54 , H01L33/56 , H01L33/60 , H01L33/62 , H01L33/642 , H01L2224/16225
Abstract: A light emitting device includes a substrate having a first main surface that serves as the light extraction surface, a second main surface that is opposite the first main surface, and a mounting surface that is adjacent to at least the second main surface, and that is provided an insulating base material, a pair of connection terminals disposed on the second main surface, and a heat dissipation terminal disposed on the second main surface and between the pair of connection terminals; a light emitting element that is mounted on the first main surface of the substrate and; a sealing member that seals the light emitting element and is formed substantially in the same plane as the substrate on the mounting surface.
Abstract translation: 发光装置包括具有作为光提取面的第一主面的基板，与第一主表面相对的第二主表面和与至少第二主表面相邻的安装表面，即， 提供绝缘基材，设置在第二主表面上的一对连接端子和设置在第二主表面上和该对连接端子之间的散热端子; 发光元件，其安装在所述基板的所述第一主表面上; 密封构件，其密封所述发光元件并且基本上与所述安装表面上的所述基板在同一平面上形成。
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Patent Agency Ranking
公开(公告)号：US12117691B2
公开(公告)日：2024-10-15
申请号：US18047041
申请日：2022-10-17
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Ryohei Yamashita , Keiji Emura , Tsuyoshi Okahisa , Toshinobu Katsumata
IPC: G02F1/13357 , G02F1/1335 , H01L25/075
CPC classification number: G02F1/133605 , G02F1/133606 , G02F1/133612 , H01L25/0753
Abstract: A light-emitting device includes a wiring board, a plurality of light-emitting elements disposed on the wiring board, a light-reflecting member covering a lateral surface of each of the plurality of light-emitting elements, a plurality of light-transmitting layers each located above an emission surface of a corresponding one of the plurality of light-emitting elements, a plurality of light-reflecting layers disposed on the plurality of light-transmitting layers, respectively, a light-diffusing layer disposed above the plurality of light-reflecting layers and the light-reflecting member, and a low-refractive-index layer located between the light-reflecting member and the light-diffusing layer, around each pair of one of the plurality of light-transmitting layers and one of the light-reflecting layers, and having a refractive index lower than that of the plurality of light-transmitting layers. Each of the plurality of light-reflecting layer has a width in a cross-sectional view thereof which is equal to or greater than that of a corresponding one of the plurality of light-transmitting layers.
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公开(公告)号：US11841135B2
公开(公告)日：2023-12-12
申请号：US17671897
申请日：2022-02-15
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Toru Hashimoto , Keiji Emura
IPC: F21V5/04 , F21V13/14 , F21Y105/16 , F21V8/00 , G02F1/1335 , F21V5/00 , G02F1/13357
CPC classification number: F21V5/045 , F21V5/007 , F21V13/14 , F21Y2105/16 , G02B6/0038 , G02F1/133606 , G02F1/133607
Abstract: A light emitting module includes: a light guide member including: an emission region defined by a sectioning groove, a light source placement part located in the emission region, and a light adjusting hole that, in a schematic top view, is located between the sectioning groove and the light source placement part; and a light source disposed in the light source placement part. A refractive index of an inside of the light adjusting hole is lower than a refractive index of the light guide member. In the schematic top view, the light adjusting hole is positioned to intersect with a first straight line connecting a center of the light source and a farthest point in the sectioning groove, the farthest point being farthest from the center of the light source.
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公开(公告)号：US11740401B2
公开(公告)日：2023-08-29
申请号：US17446505
申请日：2021-08-31
Applicant: NICHIA CORPORATION
Inventor： Keiji Emura , Takuya Nakabayashi , Toru Hashimoto
IPC: F21V8/00
CPC classification number: G02B6/0065 , G02B6/0055 , G02B6/0068 , G02B6/0083
Abstract: A method of manufacturing a light emitting module includes: providing an intermediate that includes a light guide having a first principal face and a second principal face opposing the first principal face, a plurality of light sources disposed on the second principal face of the light guide, and a wiring layer disposed on the second principal face and electrically connected to the plurality of light sources; allowing the plurality of light sources to emit light and measuring optical characteristics of the emitted light; and forming an optical characteristic correcting element in the intermediate based on the measured optical characteristics.
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公开(公告)号：US11677048B2
公开(公告)日：2023-06-13
申请号：US17086975
申请日：2020-11-02
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Tadaaki Ikeda , Toru Hashimoto , Yukiko Yokote
CPC classification number: H01L33/502 , C09K11/617 , H01L25/0753 , H01L33/58 , H01L33/60 , H01L33/62 , H01L33/647 , H01L2933/0091
Abstract: A light emitting device includes a first light emitting element including a rectangular first light extraction surface, a second light emitting element including a rectangular second light extraction surface and emitting light having an emission peak wavelength different from an emission peak wavelength of the first light emitting element, and a light-transmissive member covering the first light extraction surface and the second light extraction surface. The light-transmissive member includes a first light-transmissive layer facing the first light extraction surface and the second light extraction surface, a wavelength conversion layer located on the first light-transmissive layer, and a second light-transmissive layer located on the wavelength conversion layer. The first light-transmissive layer contains a first matrix and first diffusive particles. The wavelength conversion layer contains a second matrix and wavelength conversion particles. The second light-transmissive layer contains a third matrix and second diffusive particles.
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公开(公告)号：US11506934B2
公开(公告)日：2022-11-22
申请号：US17446388
申请日：2021-08-30
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Ryohei Yamashita , Keiji Emura , Tsuyoshi Okahisa , Toshinobu Katsumata
IPC: G02F1/13357 , G02F1/1335
Abstract: A light-emitting device includes a wiring board, a plurality of light-emitting elements disposed on the wiring board, a light-reflecting member covering a lateral surface of each of the plurality of light-emitting elements, a plurality of light-transmitting layers each located above an emission surface of a corresponding one of the plurality of light-emitting elements, a plurality of light-reflecting layers disposed on the plurality of light-transmitting layers, respectively, a light-diffusing layer disposed above the plurality of light-reflecting layers and the light-reflecting member, and a low-refractive-index layer located between the light-reflecting member and the light-diffusing layer, around each pair of one of the plurality of light-transmitting layers and one of the light-reflecting layers, and having a refractive index lower than that of the plurality of light-transmitting layers. Each of the plurality of light-reflecting layer has a width in a cross-sectional view thereof which is equal to or greater than that of a corresponding one of the plurality of light-transmitting layers.
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