公开(公告)号：US10825968B2

公开(公告)日：2020-11-03

申请号：US16183734

申请日：2018-11-08

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: H01L33/54 ,  H01L33/50 ,  C09K11/08 ,  C09K11/61 ,  C09K11/77 ,  H01L33/00 ,  H01L33/60 ,  H01L33/62 ,  H01L33/56

Abstract: A method of manufacturing a light-emitting device includes applying a light-guiding member to a light-emitting element. A light-transmissive member is mounted on the light-guiding member, and the light-guiding member is cured. A width of the light-transmissive member is narrowed. Lateral surfaces of the light-transmissive member and lateral surfaces of the light-guiding member are covered.

公开(公告)号：US10357927B2

公开(公告)日：2019-07-23

申请号：US15169115

申请日：2016-05-31

Applicant: NICHIA CORPORATION

Inventor： Teruhito Azuma ,  Toru Hashimoto ,  Tadao Morino

IPC: B29D11/00 ,  H01L33/56 ,  H01L33/60 ,  B29L11/00 ,  B29K105/16

Abstract: A light emitting device includes a light emitting element having an upper face and lateral faces; a light transmissive member covering at least a portion of the upper face of the light emitting element and transmitting light emitted from the light emitting element; a first reflector covering at least a portion of lateral faces of the light transmissive member; and a second reflector covering the lateral faces of the light emitting element. The first reflector includes a first bottom face and a second bottom face. A plane in which the first bottom face of the first reflector extends is different than a plane in which a lower face of the light transmissive member extends. The second bottom face of the first reflector is located inward of the first bottom face of the first reflector, and is coplanar with the lower face of the light transmissive member. The first bottom face of the first reflector is covered by and in contact with the second reflector.

公开(公告)号：US10084120B2

公开(公告)日：2018-09-25

申请号：US15617140

申请日：2017-06-08

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: H01L33/50 ,  H01L33/60 ,  H01L33/00 ,  B29D11/00 ,  C09K11/61 ,  C09K11/64 ,  C09K11/08 ,  B29K83/00 ,  B29K105/16

CPC classification number: H01L33/507 ,  B29D11/00663 ,  B29K2083/00 ,  B29K2105/16 ,  B29K2995/0026 ,  B29K2995/0035 ,  C09K11/0883 ,  C09K11/617 ,  C09K11/646 ,  H01L33/0079 ,  H01L33/50 ,  H01L33/502 ,  H01L33/60 ,  H01L2933/0041 ,  H01L2933/0058

Abstract: A method of producing a light transmissive element includes providing a holding member including an upper surface and a plurality of holes, each of the plurality of holes having at least one inner lateral surface that is a substantially smooth surface and an opening in the upper surface of the holding member; filling the plurality of holes with a wavelength conversion member containing fluorescent particles and a light transmissive member such that the wavelength conversion member is in contact with the inner lateral surface of each of the plurality of holes; molding the wavelength conversion member; and taking out the wavelength conversion member from the holding member after the molding of the wavelength conversion member.

公开(公告)号：US09859472B2

公开(公告)日：2018-01-02

申请号：US15455303

申请日：2017-03-10

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: H01L21/00 ,  H01L33/48 ,  H01L33/54 ,  H01L33/62 ,  H01L33/60 ,  H01L33/50

CPC classification number: H01L33/486 ,  H01L33/507 ,  H01L33/54 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/16225 ,  H01L2933/0033 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A method of manufacturing a light emitting device includes: mounting at least one light emitting element on a support member with a first surface of the light emitting element facing upward; applying an adhesive to the first surface of the light emitting element by holding the support member and dipping the first surface of the light emitting element in the adhesive; and disposing a light-transmissive member on the first surface of the light emitting element via the adhesive.

公开(公告)号：US12124131B2

公开(公告)日：2024-10-22

申请号：US17964503

申请日：2022-10-12

Applicant: NICHIA CORPORATION

Inventor： Yasunori Shinomiya ,  Toru Hashimoto

IPC: G02F1/1335 ,  F21V8/00 ,  F21V23/00 ,  F21V33/00 ,  F21Y105/16

CPC classification number: G02F1/133612 ,  F21V23/002 ,  F21V33/0052 ,  G02B6/0083 ,  F21Y2105/16

Abstract: A method of manufacturing a planar light source includes: providing a wiring substrate including: an insulating layer defining a first through-hole and a second through-hole that are separated from each other, and a first wiring layer and a second wiring layer that are disposed below the insulating layer, wherein the first wiring layer is separated from the first through-hole and the second wiring layer is separated from the second through-hole, and wherein, in a top plan view, the first wiring layer and the second wiring layer are arranged at two opposite sides with respect to the first through-hole and the second through-hole; disposing a light guide member and a light source above the wiring substrate; and forming (i) a first wiring member that fills the first through-hole, and (ii) a second wiring member that is separated from the first wiring member and fills the second through-hole.

公开(公告)号：US11828971B2

公开(公告)日：2023-11-28

申请号：US17513875

申请日：2021-10-28

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Toru Hashimoto

IPC: F21V8/00

CPC classification number: G02B6/0051 ,  G02B6/0065 ,  G02B6/0068 ,  G02B6/0038

Abstract: A light-emitting module includes first and second light sources, first and second light guide parts, and a first light-modulating member. The first light guide part includes a first A-major surface, a first B-major surface, a first side surface positioned between the first A-major surface and the first B-major surface, and a first hole portion in which the first light source is disposed. The second light guide part includes a second A-major surface, a second B-major surface, a second side surface positioned between the second A-major surface and the second B-major surface, the second side surface facing the first side surface, and a second hole portion in which the second light source is disposed. The first light-modulating member is positioned at an upper side of the first A-major surface. The first light-modulating member overlaps the first A-major surface and the first side surface when viewed in top-view.

公开(公告)号：US11821622B2

公开(公告)日：2023-11-21

申请号：US18057006

申请日：2022-11-18

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Toru Hashimoto

IPC: F21V9/30 ,  F21V8/00 ,  G02F1/13357 ,  F21Y105/16 ,  G02F1/1335

CPC classification number: F21V9/30 ,  G02B6/0021 ,  G02B6/0025 ,  G02F1/133606 ,  F21Y2105/16 ,  G02B6/0043 ,  G02B6/0051 ,  G02B6/0073 ,  G02F1/133603 ,  G02F1/133614

Abstract: A planar light source includes a light guide member having a through hole, a light source, a first light adjusting member, a second light adjusting member, and a light transmissive member. The first light adjusting member having reflectivity and transmissivity with respect to light from the light source is disposed on or above an upper face of the light source in the through hole. The second light adjusting member having reflectivity and transmissivity with respect to the light from the light source is disposed above and apart from the first light adjusting member. The first light transmissive member having a higher transmissivity with respect to the light from the light source than the transmissivities of the first and second light adjusting members is disposed between the first light adjusting member and the second light adjusting member, and between a lateral face of the light source and the light guide member.

公开(公告)号：US11557702B2

公开(公告)日：2023-01-17

申请号：US16913033

申请日：2020-06-26

Applicant: NICHIA CORPORATION

Inventor： Toru Hashimoto

IPC: H01L33/00 ,  H01L33/56 ,  H01L33/64 ,  H01L33/54

Abstract: A method for manufacturing a light-emitting device includes providing a transparent member having a protrusion formed at an upper surface of the transparent member. A first resin portion is placed on the protrusion in which the first resin portion has a solid form and is made from a first resin material of which the viscosity decreases when heated. A light-emitting element is placed on the first resin portion, the light-emitting element is caused to be self-aligned with respect to the protrusion by reducing a viscosity of the first resin portion by heating to a first temperature. The first resin portion is solidified by cooling.

公开(公告)号：US11520098B2

公开(公告)日：2022-12-06

申请号：US17167511

申请日：2021-02-04

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Toru Hashimoto ,  Keiji Emura

IPC: F21V8/00 ,  F21V13/14 ,  F21Y105/16 ,  F21V7/00 ,  G02F1/13357

Abstract: A light emitting module including: 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; and a light source disposed in the light source placement part. In the schematic top view: the light adjusting hole is not positioned on a first straight line connecting (i) a center of the light source and (ii) a point in the sectioning groove that is farthest from the center of the light source, and a first lateral face of the light adjusting hole has a first region, and a line normal to the first region is oblique to a second straight line connecting (i) the center of the light source and (ii) a point in the sectioning groove that is closest to the center of the light source.

公开(公告)号：US11287105B2

公开(公告)日：2022-03-29

申请号：US17169016

申请日：2021-02-05

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

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.