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：US20240106187A1

公开(公告)日：2024-03-28

申请号：US18475196

申请日：2023-09-26

Applicant: NICHIA CORPORATION

Inventor： Yoshihiro KIMURA ,  Tadaaki MIYATA

IPC: H01S5/02255 ,  H01S5/026

CPC classification number: H01S5/02255 ,  H01S5/0264

Abstract: A light source device includes a substrate, an edge-emitting laser element, a surface-emitting laser element, and an optical member. The substrate has a supporting surface. The edge-emitting laser element is directly or indirectly supported by the supporting surface and configured to emit a first light beam in a first direction. The surface-emitting laser element is directly or indirectly supported by the supporting surface and configured to emit a second light beam in a second direction different from the first direction. The optical member is configured to receive the first light beam and the second light beam and to cause the first light beam and the second light beam to exit the optical member as light beams traveling along a same axis.

公开(公告)号：US20240097406A1

公开(公告)日：2024-03-21

申请号：US18066728

申请日：2022-12-15

Applicant: Lumentum Operations LLC

Inventor： Martin H. MUENDEL ,  Matthew Glenn PETERS ,  James J. MOREHEAD ,  John G. BAI ,  Victor ROSSIN

IPC: H01S5/40 ,  H01S5/02255 ,  H01S5/028 ,  H01S5/10

CPC classification number: H01S5/4087 ,  H01S5/02255 ,  H01S5/028 ,  H01S5/1082

Abstract: In some implementations, a laser diode array may comprise a cavity that includes a rear facet and a front facet and multiple emitters that are transversely single mode and disposed within the cavity. In some implementations, the multiple emitters each include a seeding section having a constant emitter width that is single mode at the rear facet and a flared section having a monotonically expanding emitter width that increases adiabatically over a majority of a length of the cavity such that outputs from the multiple emitters are single mode at the front facet. In some implementations, the emitter width is less than twenty micrometers at the front facet.

公开(公告)号：US11921331B2

公开(公告)日：2024-03-05

申请号：US17101351

申请日：2020-11-23

Applicant: Enplas Corporation

Inventor： Takahiro Izawa ,  Akinobu Seki

IPC: G02B6/42 ,  G02B5/18 ,  G02B6/43 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/02255 ,  G02B27/09 ,  H01S5/42

CPC classification number: G02B6/4204 ,  G02B5/1814 ,  G02B6/4206 ,  G02B6/4246 ,  G02B5/1876 ,  G02B6/4214 ,  G02B6/4244 ,  G02B6/4249 ,  G02B2006/4297 ,  G02B6/43 ,  G02B27/0916 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/02255 ,  H01S5/423

Abstract: An optical receptacle including a first optical surface configured to allow incidence of light emitted from the light emitting element; a second optical surface configured to emit, toward the optical transmission member, light emitted from the light emitting element and advanced inside the optical receptacle; and a diffraction surface disposed on the first optical surface, on the second optical surface, or on a light path between the first optical surface and the second optical surface. The diffraction surface is configured such that primary diffraction light of the light emitted from the light emitting element reaches an end portion of the optical transmission member, and that zero-order diffraction light of the light emitted from the light emitting element does not reach the end portion of the optical transmission member.

公开(公告)号：US20240039249A1

公开(公告)日：2024-02-01

申请号：US18360268

申请日：2023-07-27

Applicant: NICHIA CORPORATION

Inventor： Kazuya HATAKEYAMA ,  Kazuma KOZURU ,  Masanobu TANAKA ,  Takafumi SUGIYAMA

IPC: H01S5/40 ,  H01S5/02253 ,  H01S5/02255

CPC classification number: H01S5/4012 ,  H01S5/4031 ,  H01S5/02253 ,  H01S5/02255

Abstract: A light-emitting module includes: a support base having a plurality of placement surfaces arranged in a first direction; a plurality of semiconductor laser elements disposed on respective ones of the plurality of placement surfaces, each semiconductor laser element configured to emit laser beams; a plurality of first mirror members, each having a first reflective surface configured to reflect and change a traveling direction of the laser beams from a respective one of the semiconductor laser elements; and a plurality of second mirror members, each having a second reflective surface, at least a portion of the second reflective surface being positioned above at least a portion of a respective one of the first reflective surfaces, and the second reflective surface being configured to reflect, in a second direction intersecting the first direction, the laser beams reflected by the respective first reflective surface.

公开(公告)号：US11862929B2

公开(公告)日：2024-01-02

申请号：US17165744

申请日：2021-02-02

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xiang Liu ,  Guoguang Zheng ,  Xiaoping Hong ,  Mingyu Wang ,  Shuai Dong

IPC: H01S5/02255 ,  H01S5/02253

CPC classification number: H01S5/02255 ,  H01S5/02253

Abstract: The present disclosure provides a laser diode package module. The laser diode package module includes a substrate including a first surface; a cover disposed on the first surface of the substrate; an accommodation space formed between the substrate and the cover; a laser diode die disposed in the accommodation space; and a reflective surface disposed in the accommodation space for outputting light of the laser diode die reflected by the reflective surface and transmitted through a light-transmitting area. The light-transmitting area is at least partially disposed on a surface of the cover opposite the substrate.

公开(公告)号：US11848533B2

公开(公告)日：2023-12-19

申请号：US17960970

申请日：2022-10-06

Applicant: NICHIA CORPORATION

Inventor： Kazuma Kozuru

IPC: H01S5/02253 ,  H01S5/02255 ,  H01S5/02257 ,  G03B21/20 ,  G03B21/00 ,  H01S5/40

CPC classification number: H01S5/02253 ,  H01S5/02255 ,  H01S5/02257 ,  G03B21/006 ,  G03B21/2033 ,  G03B21/2073 ,  H01S5/4031

Abstract: A light emitting device includes: at least one semiconductor laser element; a base member on which the at least one semiconductor laser element is disposed; a light-transmissive member including: an upper surface, a lower surface, and a light-transmissive region through which laser light emitted from the at least one semiconductor laser element is transmitted from the lower surface to the upper surface; and a lens member through which the laser light emitted from the at least one semiconductor laser element, the lens member being fixed to the base member or the light-transmissive member. At least the light-transmissive region is made of sapphire. The light-transmissive member includes an incident surface on which the laser light is incident, the incident surface being an a-plane of the sapphire.

公开(公告)号：US11843220B2

公开(公告)日：2023-12-12

申请号：US17718857

申请日：2022-04-12

Applicant: NICHIA CORPORATION

Inventor： Masatoshi Nakagaki ,  Kazuma Kozuru

IPC: H01S5/02255 ,  H01S5/02325 ,  H01S5/0236

CPC classification number: H01S5/02255 ,  H01S5/0236 ,  H01S5/02325

Abstract: A light emitting device includes: a first semiconductor laser element; a base portion including: a bottom portion including a first upper surface on which the first semiconductor laser element is disposed, and a frame portion surrounding the first semiconductor laser element, the frame portion including a second upper surface positioned above the first upper surface and a support portion positioned between the first upper surface and the second upper surface, the a support portion having a support area; a light reflecting member having a flat plate-shaped and contacting the support area, the light reflecting member being configured to reflect light from the first semiconductor laser element; and a lid portion bonded to the second upper surface.

公开(公告)号：US11841429B2

公开(公告)日：2023-12-12

申请号：US17566638

申请日：2021-12-30

Applicant: KYOCERA SLD Laser, Inc.

Inventor： James W. Raring ,  Melvin McLaurin ,  Paul Rudy ,  Vlad Novotny

IPC: G01S17/89 ,  G01S17/10 ,  G01S7/481 ,  F21K9/64 ,  H01S5/00 ,  H01S5/024 ,  F21V29/70 ,  G01S7/487 ,  H01S5/02212 ,  H01S5/343 ,  H01S5/40 ,  G01S17/86 ,  G01S17/931 ,  H01S5/02251 ,  H01S5/02325 ,  H01S5/02375 ,  H01S5/028 ,  H01S5/22 ,  H01S5/02 ,  H01S5/02255 ,  H01S5/02345

CPC classification number: G01S17/10 ,  F21K9/64 ,  F21V29/70 ,  G01S7/487 ,  G01S7/4817 ,  G01S17/86 ,  G01S17/89 ,  G01S17/931 ,  H01S5/0085 ,  H01S5/02212 ,  H01S5/02251 ,  H01S5/02325 ,  H01S5/02375 ,  H01S5/02469 ,  H01S5/34333 ,  H01S5/4012 ,  H01S5/0215 ,  H01S5/0217 ,  H01S5/0287 ,  H01S5/02255 ,  H01S5/02345 ,  H01S5/22 ,  H01S5/4031

Abstract: A distance detecting system for use in an automotive application comprises a gallium and nitrogen containing laser diode disposed within an automotive light. The gallium and nitrogen containing laser diode is configured to emit a first light with a first peak wavelength. A wavelength conversion member is configured to produce a white light. A first sensing light signal is based on the first peak wavelength. One or more optical elements are configured to direct at least partially the white light to illuminate one or more target objects or areas and to transmit respectively the first sensing light signal for sensing at least one remote point. A detector is configured to detect reflected signals of the first sensing light signal to determine coordinates of the at least one remote point.

公开(公告)号：US11824323B1

公开(公告)日：2023-11-21

申请号：US16693806

申请日：2019-11-25

Applicant: nLIGHT, Inc.

Inventor： Manoj Kanskar

IPC: H01S5/024 ,  H01S5/028 ,  H01S5/40 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/02255

CPC classification number: H01S5/02423 ,  H01S5/0287 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/02255 ,  H01S5/4025 ,  H01S5/4012 ,  H01S5/4075 ,  H01S5/4081

Abstract: The disclosed diode laser packages include a carrier having an optics-mounting surface to which first and second sets of collimating and turning optics are mounted. The carrier includes a heatsink receptacle medially located between the first and second sets. A cooling plenum has a diode-mounting surface and includes heatsink material disposed in the heatsink receptacle. The cooling plenum further has an inlet, an outlet, and a coolant passageway defined between the inlet and the outlet. The coolant passageway is sized to receive the heatsink material disposed in heatsink receptacle. Multiple semiconductor laser diode devices are each mounted atop the diode-mounting surface and positioned for bidirectional emission toward the first and second sets of collimating and turning optics. The multiple semiconductor laser diode devices are thermally coupled to the heatsink material through which coolant is deliverable by the coolant passageway.