公开(公告)号：US20180108815A1

公开(公告)日：2018-04-19

申请号：US15783514

申请日：2017-10-13

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI

IPC: H01L33/50 ,  H01L33/48 ,  H01L33/60 ,  H01L33/62

CPC classification number: H01L33/504 ,  H01L33/486 ,  H01L33/505 ,  H01L33/54 ,  H01L33/60 ,  H01L33/62 ,  H01L33/647 ,  H01L2933/0033 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A light emitting device includes a light emitting element, a reflective member, and a covering member. The light emitting element includes a light extraction surface, an electrode-formed surface on a side opposite to the light extraction surface, lateral surfaces positioned between the light extraction surface and the electrode-formed surface, and a pair of electrodes on the electrode-formed surface. At least a part of the pair of the electrodes is exposed outside the light emitting device. The reflective member covers the lateral surfaces of the light emitting element while being in contact with at least a part of the light emitting element, the part of the pair of the electrodes being exposed from the reflective member. The covering member includes a lens portion on an upper surface thereof. The covering member covers the light emitting element and the reflective member while being in contact with the reflective member.

公开(公告)号：US20180094796A1

公开(公告)日：2018-04-05

申请号：US15721381

申请日：2017-09-29

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI

IPC: F21V17/10 ,  F21V3/02 ,  F21V7/04 ,  F21V9/16

CPC classification number: F21V17/101 ,  F21V3/02 ,  F21V7/04 ,  F21V9/30 ,  G02B6/0011 ,  H01L25/0753 ,  H01L33/56 ,  H01L2933/005

Abstract: A method for manufacturing a linear light emitting device includes: providing a light transmissive member having a long side and a short side in a plan view; mounting a plurality of light emitting elements on the light transmissive member via a light transmissive adhesive, such that the light emitting elements are arranged in a row along the long side of the light transmissive member; and forming a reflective member that covers the light transmissive adhesive and lateral faces of the light emitting elements. The linear light emitting device has an emission face having a long side and a short side in a plan view, and a length of the short side of the light transmissive member is substantially equal to a length of the short side of the emission face of the linear light emitting device.

公开(公告)号：US20170213941A1

公开(公告)日：2017-07-27

申请号：US15483269

申请日：2017-04-10

Applicant: NICHIA CORPORATION

Inventor： Takeshi IKEGAMI ,  Tadao HAYASHI ,  Hiroto TAMAKI

IPC: H01L33/50 ,  H01L33/48

CPC classification number: H01L33/502 ,  H01L33/486 ,  H01L33/501 ,  H01L33/505 ,  H01L33/508 ,  H01L2224/16225 ,  H01L2933/0033 ,  H01L2933/0041

Abstract: A method of manufacturing a light emitting device including: forming a supporting body on a mounting surface of each of semiconductor light emitting elements; arranging the semiconductor light emitting elements to be spaced apart from each other by a predetermined distance; and forming a wavelength conversion layer to continuously cover an upper surface and side surfaces of at least one of the semiconductor light emitting elements. The forming the wavelength conversion layer includes spraying a slurry provided by mixing particles of a wavelength conversion member and a thermosetting resin in a solvent onto the upper surface and the side surfaces of the semiconductor light emitting element, so that a thickness of the wavelength conversion layer at a lower portion of the side surfaces of the supporting body is smaller than the thickness on the upper surface and the side surfaces of the semiconductor light emitting element.

公开(公告)号：US20170090101A1

公开(公告)日：2017-03-30

申请号：US15281402

申请日：2016-09-30

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI

IPC: F21V8/00

CPC classification number: G02B6/0055 ,  G02B6/0018 ,  G02B6/0021 ,  G02B6/005 ,  G02B6/0065 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0091

Abstract: A lighting device includes a light-emitting component including at least one light-emitting element mounted on a base, a light guide plate guiding light emitted from the light-emitting element, a wavelength conversion member partially covering the light guide plate, and a first reflective member covering the wavelength conversion member. The light guide plate comprises two main surfaces, which include a light-extraction surface allowing light emitted from the light-emitting element to exit and a rear surface opposite to the light-extraction surface. One of two main surfaces comprises at least one recess formed in an edge region thereof. The other main surface of the light guide plate includes a part covered by the wavelength conversion member and a part exposed from the wavelength conversion member. The light-emitting element is accommodated in the recess such that a light-emitting surface of the light-emitting element faces the wavelength conversion member.

公开(公告)号：US20130257264A1

公开(公告)日：2013-10-03

申请号：US13852332

申请日：2013-03-28

Applicant: NICHIA CORPORATION

Inventor： Hiroto TAMAKI ,  Takayoshi WAKAKI ,  Tadao HAYASHI ,  Yoshiki SATO ,  Daisuke OYAMATSU ,  Takafumi SUGIYAMA ,  Takao KOSUGI

IPC: H01L31/055 ,  H05B33/12 ,  B05D5/06 ,  F21V7/00

CPC classification number: F21V9/30 ,  B05D5/06 ,  C23C16/45525 ,  F21K9/60 ,  F21V7/00 ,  F21V13/08 ,  F21Y2115/10 ,  F21Y2115/30 ,  H01L31/055 ,  H01L33/502 ,  H01L33/505 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2224/8592 ,  H05B33/12 ,  Y02E10/52 ,  Y10T428/24364 ,  Y10T428/24372 ,  Y10T428/24413 ,  Y10T428/24421 ,  H01L2924/00014

Abstract: A wave-length conversion inorganic member can includes a base body and an inorganic particle layer on the base body. The inorganic particle layer can include particles of an inorganic wave-length conversion substance which is configured to absorb light of a first wave-length and to emit light of a second wave-length different from the first wave-length. The inorganic particle layer can include an agglomerate of a plurality of the particles. Each of the plurality of the particles are in contact with at least one of the other particles or the base body. A cover layer comprises an inorganic material, and the cover layer continuously covers a surface of the base body and surfaces of the particles. The inorganic particle layer has an interstice enclosed by the particles, or by the particles and one of the base body and the cover layer.

公开(公告)号：US20210013385A1

公开(公告)日：2021-01-14

申请号：US17034899

申请日：2020-09-28

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI ,  Teruhito AZUMA ,  Suguru BEPPU ,  Kunihiro IZUNO ,  Tsuyoshi OKAHISA

IPC: H01L33/50 ,  H01L33/48 ,  H01L33/58 ,  H01L33/60

Abstract: A method of manufacturing a covering member includes: providing a first light-reflective member comprising a through-hole, the through-hole having first and second openings; arranging a light-transmissive resin containing a wavelength-conversion material within the through-hole; distributing the wavelength-conversion material predominantly on a side of the first opening of the through-hole within the light-transmissive resin; and after the step of distributing the wavelength-conversion material, removing a portion of the light-transmissive resin from a side of the second opening of the through-hole.

公开(公告)号：US20200310019A1

公开(公告)日：2020-10-01

申请号：US16829787

申请日：2020-03-25

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI

IPC: F21V8/00

Abstract: Provided is a linear light source including: a light-transmissive base having a first main surface that has a rectangular shape with long sides and short sides, a second main surface located opposite to the first main surface, a first (long) side surface, and a second (short) side surface; a plurality of light emitting devices, each including a light emitting element, a light-transmissive member and a sealing member. An upper surface of each of the light emitting devices includes an upper surface of the light-transmissive member. A first bonding member bonds the first main surface of the light-transmissive base and the upper surfaces of the light emitting devices. A width of the light-transmissive base is the same as a width of the light emitting devices in a first direction orthogonal to a first side surface of the light-transmissive base.

公开(公告)号：US20200152839A1

公开(公告)日：2020-05-14

申请号：US16731290

申请日：2019-12-31

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI

IPC: H01L33/48 ,  H01L33/62

Abstract: A composite board is provided with a board and a covering member. The board includes a base made of ceramics, first wiring provided on an upper surface of the base, and second wiring provided on a lower surface of the base and electrically connected to the first wiring. The covering member covers the base such that the first wiring and the second wiring are exposed.

公开(公告)号：US20200152828A1

公开(公告)日：2020-05-14

申请号：US16742315

申请日：2020-01-14

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI

IPC: H01L33/00 ,  H01L33/38 ,  H01L33/46 ,  H01L33/60 ,  H01L33/32

Abstract: A method for manufacturing a light-emitting device includes: providing a light-transmissive member comprising: a base portion, and a projecting portion on a first surface side of the base portion; providing a light-emitting element that has a main emitting surface and an electrode formation surface opposite to the main emitting surface; disposing the light-emitting element on the projecting portion of the light-transmissive member such that the main emitting surface of the light-emitting element faces an upper surface of the projecting portion of the light-transmissive member; and forming a light-reflective member that covers at least one of (i) lateral surfaces of the light-emitting element, and/or (ii) lateral surfaces of the projecting portion of the light-transmissive member.

公开(公告)号：US20190312183A1

公开(公告)日：2019-10-10

申请号：US16447935

申请日：2019-06-20

Applicant: NICHIA CORPORATION

Inventor： Tadao HAYASHI ,  Teruhito AZUMA ,  Suguru BEPPU ,  Kunihiro IZUNO ,  Tsuyoshi OKAHISA

IPC: H01L33/50 ,  H01L33/48 ,  H01L33/60 ,  H01L33/58

Abstract: A method of manufacturing a covering member includes: providing a first light-reflective member comprising a through-hole, the through-hole having first and second openings; arranging a light-transmissive resin containing a wavelength-conversion material within the through-hole; distributing the wavelength-conversion material predominantly on a side of the first opening of the through-hole within the light-transmissive resin; and after the step of distributing the wavelength-conversion material, removing a portion of the light-transmissive resin from a side of the second opening of the through-hole.