公开(公告)号：US20240113499A1

公开(公告)日：2024-04-04

申请号：US18506391

申请日：2023-11-10

Applicant: NICHIA CORPORATION

Inventor： Takuya HASHIMOTO ,  Soichiro MIURA

IPC: H01S5/02257 ,  H01S5/02208 ,  H01S5/02255 ,  H01S5/40

CPC classification number: H01S5/02257 ,  H01S5/02208 ,  H01S5/02255 ,  H01S5/4093 ,  H01S5/3013

Abstract: A light emitting device includes a package, a cap, a joining member and at least one laser element. The package includes a metal film. The cap includes a light-transmissive member having a lower surface facing the package and an upper surface opposite to the lower surface, and a light blocking film arranged on the lower surface of the light-transmissive member and having a shape defining at least one opening. The joining member joins a part of the light blocking film and the metal film. The at least one laser element is positioned in a space bounded by the cap and the package such that a part of an edge of the at least one opening defined by the light blocking film is disposed directly above the at least one laser element.

公开(公告)号：US20240055828A1

公开(公告)日：2024-02-15

申请号：US18495403

申请日：2023-10-26

Applicant: NICHIA CORPORATION

Inventor： Soichiro MIURA ,  Ryota OKUNO

IPC: H01S5/02326

CPC classification number: H01S5/02326

Abstract: A light emitting device includes: a laser element; a case enclosing the laser element, the case including a light-transmissive region configured to allow light emitted from the laser element to transmit through the light-transmissive region; a first lens configured to collimate or converge light emitted from the laser element; and a second lens that is disposed in the case and spaced apart from the first lens, the second lens located in an optical path between the laser element and the first lens. The second lens is spaced apart from the light-transmissive region such that an open space is located in the case between the light-transmissive region and the second lens.

公开(公告)号：US20240047937A1

公开(公告)日：2024-02-08

申请号：US18364443

申请日：2023-08-02

Applicant: NICHIA CORPORATION

Inventor： Soichiro MIURA

IPC: H01S5/02315 ,  H01S5/00 ,  H01S5/02253

CPC classification number: H01S5/02315 ,  H01S5/0014 ,  H01S5/02253

Abstract: A light-emitting device includes a light-emitting element, a substrate supporting the light-emitting element, and one or more lateral wall portions joined to the substrate to surround the light-emitting element. The one or more lateral wall portions includes a first lateral wall portion having a light incident surface configured to receive a light emitted from the light-emitting element and traveling in a first direction and a light exit surface configured to emit the light. The substrate has a joint surface joined to the first lateral wall portion and a lateral surface meeting the joint surface. The lateral surface is located between the light incident surface and the light exit surface in a top view as viewed in a direction perpendicular to the joint surface.

公开(公告)号：US20230318254A1

公开(公告)日：2023-10-05

申请号：US18191137

申请日：2023-03-28

Applicant: NICHIA CORPORATION

Inventor： Soichiro MIURA ,  Kazuya ETO

IPC: H01S5/00 ,  H01S5/02257

CPC classification number: H01S5/0087 ,  H01S5/02257

Abstract: A phosphor member disclosed in one embodiment includes: a phosphor portion including a first surface and a second surface; and a surrounding portion connected to an outer edge of the first surface and connected to an outer edge of the second surface. In a plan view viewed in a direction perpendicular to the first surface, the first surface has a shape including a first region with a width in a second direction perpendicular to a first direction, the width in the second direction increasing along the first direction. A maximum width of the second surface in the second direction is greater than a minimum width of the first surface in the second direction and less than a maximum width of the first surface in the second direction.

公开(公告)号：US20230299554A1

公开(公告)日：2023-09-21

申请号：US18183482

申请日：2023-03-14

Applicant: NICHIA CORPORATION

Inventor： Soichiro MIURA

IPC: H01S5/02255 ,  H01S5/42 ,  H01S5/02253

CPC classification number: H01S5/02255 ,  H01S5/423 ,  H01S5/02253

Abstract: A light emitting device includes: a package including upper and lower portions, and one or more lateral portions including a first lateral portion having a light-transmitting portion, the package having a closed space; a first light-emitting element having an upper surface, configured to have one or more emission points on the upper surface, and disposed on a mounting surface of the lower portion; and a reflecting part having a first reflection surface within the closed space to reflect light emitted upward from the emission points. Light reflected from the first reflection surface is transmitted through the light-transmitting portion. In a direction normal to the mounting surface, a first distance between a lower surface of the upper portion and the mounting surface is equal to or greater than 1.5 times a second distance between the upper surface of the first light-emitting element and a midpoint of the first reflection surface.

公开(公告)号：US20230160744A1

公开(公告)日：2023-05-25

申请号：US18057217

申请日：2022-11-20

Applicant: NICHIA CORPORATION

Inventor： Yuto GODA ,  Soichiro MIURA

IPC: G01J1/04 ,  G02B27/01 ,  G01J1/44

CPC classification number: G01J1/0414 ,  G02B27/0172 ,  G01J1/44 ,  G02B2027/0178

Abstract: A light-emitting device includes a plurality of light-emitting elements, a photodetector, an optical member and a bonding portion. The light-emitting elements include a first light-emitting element configured to emit first light and a second light-emitting element configured to emit second light. The photodetector is configured to receive a part of light emitted from each of the light-emitting elements. The photodetector has a first bonding surface. The optical member has a second bonding surface and a first inner side surface. The first inner side surface is continuous from the second bonding surface. The light emitted from each of the plurality of light-emitting elements is configured to pass through the optical member. The bonding portion bonds the photodetector and the optical member with the bonding portion being in contact with the first bonding surface, the second bonding surface, and at least a part of the first inner side surface.

公开(公告)号：US20230062649A1

公开(公告)日：2023-03-02

申请号：US17893622

申请日：2022-08-23

Applicant: NICHIA CORPORATION

Inventor： Soichiro MIURA

IPC: H01L33/50 ,  H01L33/62

Abstract: A light emitting device includes: a package including a base portion, a frame portion, and a cover portion; a light emitting element disposed on an upper surface of the base portion, surrounded by the frame portion, and configured to emit light traveling laterally; and a wavelength conversion member disposed on the base portion and including a first lateral surface on which light emitted from a light extraction surface of the light emitting element is to be incident, and an upper surface through which light is to be emitted. The frame portion includes a light shielding portion configured to shield light in a wavelength range of the light emitted from the light emitting element. The cover portion includes a light-transmissive portion configured to transmit and cause light emitted from the upper surface of the wavelength conversion member to exit to an area outside the light emitting device.

公开(公告)号：US20220344896A1

公开(公告)日：2022-10-27

申请号：US17727594

申请日：2022-04-22

Applicant: NICHIA CORPORATION

Inventor： Kazuya ETO ,  Soichiro MIURA ,  Takuya HASHIMOTO ,  Masatoshi NAKAGAKI

IPC: H01S5/02315 ,  H01S5/40

Abstract: A light-emitting device includes first and second light-emitting elements, upper submounts, and a lower submount. The upper submounts include a first submount having a first upper surface and a first lateral surface located on a same side as an emission end surface of the first light-emitting element, and a second submount having a second upper surface and a second lateral surface located on a same side as an emission end surface of the second light-emitting element. In a top plan view, the first lateral surface is located forward relative to the second lateral surface, and the emission end surface of the first light-emitting element is located forward relative to the emission end surface of the second light-emitting element. At least a portion of the first lateral surface is protruded forward relative to an edge along which an upper surface and a lateral surface of the lower submount meet.

公开(公告)号：US20220209497A1

公开(公告)日：2022-06-30

申请号：US17697897

申请日：2022-03-17

Applicant: NICHIA CORPORATION

Inventor： Masatoshi NAKAGAKI ,  Soichiro MIURA

IPC: H01S5/02355 ,  H01S5/40 ,  H01S5/0233

Abstract: A light emitting device includes first to third semiconductor laser elements. Each of the semiconductor laser elements includes at least two emitters, and configured to emit red-color light, green-color light, or blue-color light. The mount member includes first to third conduction parts, each including a plurality of metal films including mounting regions that are aligned in a predetermined direction. The first to third semiconductor laser elements are respectively mounted on the first to third conduction parts of the mount member in a junction-down configuration.

公开(公告)号：US20190195442A1

公开(公告)日：2019-06-27

申请号：US16230565

申请日：2018-12-21

Applicant: NICHIA CORPORATION

Inventor： Soichiro MIURA

IPC: F21K9/90 ,  H01S5/323 ,  F21V11/16 ,  F21V5/00

CPC classification number: F21K9/90 ,  F21V5/007 ,  F21V11/16 ,  F21Y2115/30 ,  H01S5/32316 ,  H01S5/32341

Abstract: A method of manufacturing a light emitting device includes: providing a light source including one or more semiconductor laser elements, an optical member including one or more lens parts, a condensing lens, and a photodetector, one above the other; causing at least one semiconductor laser element to emit light; determining a reference detection position of light; placing a first light-shielding member to shield a portion of the light passed through the lens parts; determining a post-shielding detection position; adjusting a distance between the light source and the optical member based on the reference detection position and the post-shielding detection position; and securing the optical member and the light source to each other.