公开(公告)号：US20230056016A1

公开(公告)日：2023-02-23

申请号：US17981701

申请日：2022-11-07

Applicant: NICHIA CORPORATION

Inventor： Yuichi YAMADA ,  Takeshi TAMURA

IPC: H01L33/50 ,  H01L25/075 ,  G02F1/13357 ,  H01L33/60

Abstract: A light emitting device includes: a base; a phosphor frame positioned inward of edges of a lower face of the base; a light emitting element disposed in an area surrounded by the phosphor frame; and a light transmissive member contacting at least a portion of the edges of the lower face of the base and at least a portion of outer lateral faces of the phosphor frame.

公开(公告)号：US20250056942A1

公开(公告)日：2025-02-13

申请号：US18932321

申请日：2024-10-30

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Yuichi YAMADA ,  Shinsaku IKUTA ,  Takeshi TAMURA

IPC: H01L33/60 ,  F21V3/06 ,  F21Y105/16 ,  F21Y115/10 ,  H01L33/54

Abstract: An LED package includes a light source, a light transmissive member, and a light reflecting layer. The light source includes a resin package, a light emitting element and a wavelength conversion material. The resin package includes first and second leads and a resin member. The resin package defines a recess having a bottom face defined by portions of the first and second leads, and a portion of the resin member, and a lateral wall defined by a portion of the resin member. The light emitting element is disposed on or above the bottom face in the recess. The wavelength conversion material is disposed in the recess. The light transmissive member is disposed on or above the light source. The light reflecting layer is disposed on or above the light transmissive member at least on an upper side along an optical axis of the light emitting element.

公开(公告)号：US20220069177A1

公开(公告)日：2022-03-03

申请号：US17459132

申请日：2021-08-27

Applicant: NICHIA CORPORATION

Inventor： Yuichi YAMADA ,  Takeshi TAMURA

IPC: H01L33/50 ,  H01L25/075 ,  H01L33/60 ,  G02F1/13357

Abstract: A method of manufacturing a light emitting device includes: providing a first member comprising: a base, a plurality of phosphor frames positioned on the base, the plurality of phosphor frames including a first phosphor frame and a second phosphor frame that is adjacent to the first phosphor frame, and a light transmissive member, a portion of which is disposed between the first phosphor frame and the second phosphor frame; disposing a first light emitting element in the first phosphor frame and a second light emitting element in the second phosphor frame, wherein: each light emitting element has an emission face and an electrode forming face located opposite to the emission face, each light emitting element comprises an electrode located on its electrode forming face, and each light emitting element is disposed such that its emission face faces the base; and cutting the light transmissive member.

公开(公告)号：US20210372591A1

公开(公告)日：2021-12-02

申请号：US17400001

申请日：2021-08-11

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Takeshi TAMURA ,  Hiroshi FUJIMORI

IPC: F21V7/22 ,  G02F1/13357 ,  F21V9/30 ,  F21V7/00 ,  F21V13/08

Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.

公开(公告)号：US20210317971A1

公开(公告)日：2021-10-14

申请号：US17356238

申请日：2021-06-23

Applicant: NICHIA CORPORATION

Inventor： Takeshi TAMURA ,  Hiroshi FUJIMORI ,  Motokazu YAMADA

IPC: F21V13/08 ,  G02F1/13357 ,  H01L25/075 ,  F21V3/02 ,  F21V7/00 ,  F21V9/08

Abstract: A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser sheet. The light sources are disposed on an upper surface of the substrate. The partitioning member is disposed on the upper surface of the substrate and including top parts. The partitioning member is reflective. The diffuser sheet is in contact with the top parts of the partitioning member.

公开(公告)号：US20180023784A1

公开(公告)日：2018-01-25

申请号：US15648729

申请日：2017-07-13

Applicant: NICHIA CORPORATION

Inventor： Takeshi TAMURA ,  Hiroshi FUJIMORI ,  Motokazu YAMADA

IPC: F21V13/08 ,  F21V7/00 ,  F21V9/08 ,  F21V3/02

CPC classification number: F21V13/08 ,  F21V3/02 ,  F21V7/0083 ,  F21V9/08 ,  F21Y2115/10 ,  G02F1/133603 ,  G02F1/133608 ,  G02F1/133611 ,  G02F2001/133607 ,  H01L25/0753 ,  H01L33/60

Abstract: A light emitting device includes a mounting board on which a plurality of light sources are disposed; a partitioning member surrounding the light sources and including a plurality of walls that include top parts and form a plurality of areas; a diffuser sheet that is provided above the partitioning member and is supported directly or indirectly by at least one of the top parts of the partitioning member; a plurality of first reflectors that are provided directly above the light sources and are positioned on one of an upper surface and a lower surface of the diffuser sheet; and a second reflector that is provided directly above the top parts and is positioned on one of the upper surface and the lower surface of the diffuser sheet.

公开(公告)号：US20240329461A1

公开(公告)日：2024-10-03

申请号：US18619298

申请日：2024-03-28

Applicant: NICHIA CORPORATION

Inventor： Takeshi TAMURA

IPC: G02F1/13357 ,  G02F1/1335

CPC classification number: G02F1/133611 ,  G02F1/133607

Abstract: A planar light source includes: a plurality of light sources disposed two-dimensionally, each including: a light-emitting element, a light-transmissive member covering the light-emitting element, and a light adjustment member disposed on an upper surface of the light-transmissive member and located above the light-emitting element. The plurality of light sources include, in a top view, a plurality of central light sources disposed in a central region, and a plurality of peripheral light sources disposed in a peripheral region located outward of the central region. The plurality of peripheral light sources include a first light source in which a light transmittance of the light adjustment member is higher than a light transmittance of the light adjustment members of the central light sources.

公开(公告)号：US20230096212A1

公开(公告)日：2023-03-30

申请号：US18050896

申请日：2022-10-28

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Yuichi YAMADA ,  Shinsaku IKUTA ,  Takeshi TAMURA

IPC: H01L33/60 ,  F21V3/06 ,  H01L33/54 ,  F21Y115/10 ,  F21Y105/16

Abstract: An LED package includes a light source, a light transmissive member, and a light reflecting layer. The light source includes a resin package, a light emitting element and a wavelength conversion material. The resin package includes first and second leads and a resin member. The resin package defines a recess having a bottom face defined by portions of the first and second leads, and a portion of the resin member, and a lateral wall defined by a portion of the resin member. The light emitting element is disposed on or above the bottom face in the recess. The wavelength conversion material is disposed in the recess. The light transmissive member is disposed on or above the light source. The light reflecting layer is disposed on or above the light transmissive member at least on an upper side along an optical axis of the light emitting element.

公开(公告)号：US20210247034A1

公开(公告)日：2021-08-12

申请号：US17241909

申请日：2021-04-27

Applicant: NICHIA CORPORATION

Inventor： Atsushi YAMAMOTO ,  Takeshi TAMURA

IPC: F21K9/66 ,  H01L25/075 ,  H01L21/66 ,  H01L33/46 ,  F21K9/64 ,  F21K9/68 ,  F21K9/90 ,  F21K9/69 ,  H01L33/50

Abstract: A light source device includes a substrate, a plurality of light sources arranged on the substrate, a light transmissive member arranged over the light sources, and a light-reflecting pattern. The light-reflecting pattern is arranged above or below the light transmissive member such that a thickness and/or a concentration of material of the light-reflecting pattern in a first region directly above one of the light sources is greater than the thickness and/or the concentration of material of the light-reflecting pattern in a second region above a portion between adjacent ones of the light sources.

公开(公告)号：US20210167263A1

公开(公告)日：2021-06-03

申请号：US17103719

申请日：2020-11-24

Applicant: NICHIA CORPORATION

Inventor： Motokazu YAMADA ,  Yuichi YAMADA ,  Shinsaku IKUTA ,  Takeshi TAMURA

IPC: H01L33/60 ,  F21V3/06 ,  H01L33/54

Abstract: A light emitting device includes a substrate, a light source, a cover member, a light transmissive member disposed on or above the light source, a light reflecting layer disposed on or above the light transmissive member, and a light transmissive cover member. The cover member is made of a resin material containing a light reflecting substance and covers a lateral face of the light source. The light transmissive cover member covers at least a lateral face of the light transmissive member and includes an annular lens part. A thickness of a portion of the light transmissive cover member disposed above a perimeter of the light reflecting layer is larger than a thickness of a portion of the light transmissive cover member disposed above a portion of the light reflecting layer where an optical axis of the light emitting element passes through.