公开(公告)号：US20220294180A1

公开(公告)日：2022-09-15

申请号：US17828559

申请日：2022-05-31

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA

IPC: H01S5/026 ,  H01S5/062 ,  H01S5/02257

Abstract: A light source device includes: a laser diode including an emission end surface for emitting laser light and a rear end surface opposite to the emission end surface; a reflecting member that reflects a portion of the laser light emitted from the emission end surface of the laser diode; a photodetector configured to detect light that is reflected at the reflecting member; and a light-shielding member disposed between the rear end surface of the laser diode and the photodetector, the light-shielding member configured to shield at least a portion of light emitted from the rear end surface of the laser diode.

公开(公告)号：US20210194208A1

公开(公告)日：2021-06-24

申请号：US17193165

申请日：2021-03-05

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA ,  Hideaki TAKEDA

IPC: H01S5/02325 ,  H01S5/042 ,  H01S5/30 ,  H01S5/40 ,  H01S5/068 ,  H01S5/02255 ,  H01S5/02345

Abstract: A light source device includes at least one first wiring, a plurality of second wirings, a plurality of light emitting elements each having a lower-surface-side electrode connected to a respective one of the at least one first wiring, a plurality of protective elements each having a lower-surface-side electrode connected to a respective one of the plurality of second wirings each corresponding to a respective one of the plurality of light emitting elements, each of the plurality of protective elements connected to a respective one of the plurality of light emitting elements, a plurality of first wirings each connecting an upper-surface-side electrode of each of the plurality of light emitting elements and a respective one of the plurality of second wirings, a plurality of second wires each connecting the upper-surface-side electrodes of two adjacent ones of the protective elements; and a plurality of third wires each connecting an upper-surface-side electrode of a respective one of the plurality of protective elements and a corresponding one of the at least one first wiring. The upper-surface-side electrodes of the plurality of light emitting elements and the upper-surface-side electrodes of the plurality of protective elements are of a same polarity, and the plurality of first wires are disposed below the plurality of second wires.

公开(公告)号：US20200096712A1

公开(公告)日：2020-03-26

申请号：US16582170

申请日：2019-09-25

Applicant: Nichia Corporation

Inventor： Tadaaki MIYATA

IPC: G02B6/42 ,  G02B27/09 ,  G03B21/20

Abstract: A light source device includes: a package having an upward-facing surface and a surrounding inner lateral surface, a recess being defined by the upward-facing and inner lateral surfaces; a laser light source disposed on the upward-facing surface of the package; a cover closing the recess; a reflecting surface reflecting light emitted from the laser light source; and first and second lenses disposed on inner and outer surface sides of the cover, respectively, in an optical path region of the reflected light. One of the first and second lenses has a greater curvature in a major axis direction of a far field pattern of light emitted from the laser light source than in a minor axis direction of the far field pattern. The other of the first and second lenses has a greater curvature in the minor axis direction of the far field pattern than in the major axis direction.

公开(公告)号：US20200036158A1

公开(公告)日：2020-01-30

申请号：US16525075

申请日：2019-07-29

Applicant: Nichia Corporation

Inventor： Tadaaki MIYATA ,  Hideaki TAKEDA

IPC: H01S5/022 ,  H01S5/042 ,  H01S5/068 ,  H01S5/40 ,  H01S5/30

Abstract: A light source device includes at least one first wiring, a plurality of second wirings, a plurality of light emitting elements each having a lower-surface-side electrode connected to a respective one of the at least one first wiring, a plurality of protective elements each having a lower-surface-side electrode connected to a respective one of the plurality of second wirings each corresponding to a respective one of the plurality of light emitting elements, each of the plurality of protective elements connected to a respective one of the plurality of light emitting elements, a plurality of first wirings each connecting an upper-surface-side electrode of each of the plurality of light emitting elements and a respective one of the plurality of second wirings, a plurality of second wires each connecting the upper-surface-side electrodes of two adjacent ones of the protective elements; and a plurality of third wires each connecting an upper-surface-side electrode of a respective one of the plurality of protective elements and a corresponding one of the at least one first wiring. The upper-surface-side electrodes of the plurality of light emitting elements and the upper-surface-side electrodes of the plurality of protective elements are of a same polarity, and the plurality of first wires are disposed below the plurality of second wires.

公开(公告)号：US20160348857A1

公开(公告)日：2016-12-01

申请号：US15167012

申请日：2016-05-27

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA

IPC: F21K99/00 ,  F21V29/56 ,  F21V9/16

CPC classification number: F21V9/30 ,  F21K9/64 ,  F21S41/16 ,  F21V29/502 ,  F21V29/56 ,  F21W2131/406 ,  F21Y2115/10 ,  F21Y2115/15 ,  H01L33/502 ,  H01L33/507 ,  H01L33/644 ,  H01L33/648

Abstract: A wavelength converting member includes a sealed housing which is at least partially light transmissive, a coolant enclosed in the sealed housing, a cooling part provided on a part of an external surface of the sealed housing, and a channel having a plurality of micro-passages allowing a liquid coolant flowing therein. At least a portion of the micro-passages are formed by gaps between particles, and phosphor particles are contained in the particles.

Abstract translation: 波长转换构件包括至少部分透光的密封壳体，封闭在密封壳体中的冷却剂，设置在密封壳体的外表面的一部分上的冷却部分和具有多个微通道 允许液体冷却剂在其中流动。 微通道的至少一部分由颗粒之间的间隙形成，并且磷颗粒包含在颗粒中。

公开(公告)号：US20160065919A1

公开(公告)日：2016-03-03

申请号：US14838466

申请日：2015-08-28

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA ,  Hidenori MATSUO

IPC: H04N9/31 ,  G02B26/00 ,  G03B21/16 ,  G03B21/20

CPC classification number: H04N9/3111 ,  G02B26/008 ,  G02B27/30 ,  G03B21/16 ,  G03B21/2006 ,  G03B21/2013 ,  G03B21/204 ,  G03B21/2046 ,  H04N9/3158

Abstract: A light source apparatus and a Projector including the light source apparatus are provided. The light source apparatus comprises: a plurality of light sources each including a laser diode and a collimating lens, said collimating lens making a light emitted from said laser diode into an approximately collimated beam, a plurality of housings in which said plurality of light sources are placed so that a light is emitted from each of said light source advances approximately in parallel in the same direction, a condenser lens which condenses lights which is emitted from said plurality of housings to a phosphor, a phosphor wheel having said phosphor, said phosphor wheel transmitting the lights which is emitted from said condenser lens, wherein incident angles of the lights emitted from said housings to an optical axis of said condenser lens are made different by varying mount angles of said housings to a supporting member.

Abstract translation: 提供了一种光源装置和包括该光源装置的投影仪。 光源装置包括：多个光源，每个光源包括激光二极管和准直透镜，所述准直透镜将从所述激光二极管发射的光制成近似准直的光束;多个外壳，其中所述多个光源为 放置成使得从所述光源中的每一个发射的光大致平行于同一方向前进;聚光透镜，其将从所述多个壳体发射的光聚光到荧光体;具有所述荧光体的荧光轮，所述荧光轮 透射从所述聚光透镜发射的光，其中通过将所述壳体的安装角度改变为支撑构件，使从所述壳体发射到所述聚光透镜的光轴的光的入射角度不同。

公开(公告)号：US20240250498A1

公开(公告)日：2024-07-25

申请号：US18417059

申请日：2024-01-19

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA ,  Kazuma KOZURU

IPC: H01S5/024 ,  H01S5/02315 ,  H01S5/0232

CPC classification number: H01S5/02476 ,  H01S5/02315 ,  H01S5/0232 ,  H01S5/02469

Abstract: A light-emitting device includes: a heat dissipation member having a mounting surface; a frame body fixed to the heat dissipation member and having an upper surface; a submount supported by the mounting surface and having an upper surface and a lower surface; and a semiconductor laser element supported by the upper surface of the submount. The lower surface of the submount includes a first region bonded to the mounting surface and a second region facing the upper surface of the frame body and not bonded to the upper surface of the frame body.

公开(公告)号：US20230170665A1

公开(公告)日：2023-06-01

申请号：US18059160

申请日：2022-11-28

Applicant: NICHIA CORPORATION

Inventor： Yoshihiro KIMURA ,  Tadaaki MIYATA

IPC: H01S5/02257 ,  H01S5/00 ,  H01S5/028

CPC classification number: H01S5/02257 ,  H01S5/0064 ,  H01S5/028

Abstract: A method includes providing a first plate for a front wall that defines a front surface of a recess to accommodate a laser diode, a second plate for a rear wall that defines a rear side of the recess, and a third plate for a main body that defines an upper side and lateral sides of the recess and is connected to the front wall and the rear wall. The third plate has through-holes arranged in a first direction and in a second directions orthogonal to the first direction. The plates are bonded together to produce a stacked body. The stacked body is cut along the first direction and the second direction to produce a plurality of caps from the stacked body. When cutting the stacked body along the first direction, a first incision is made along inner wall surfaces of through-holes adjacent along the first direction.

公开(公告)号：US20210286158A1

公开(公告)日：2021-09-16

申请号：US17198086

申请日：2021-03-10

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA

IPC: G02B19/00 ,  G02B1/115

Abstract: A light source device includes a condensing lens, a laser light source, a first anti-reflection film, and a second anti-reflection film. The condensing lens has a curved surface. The laser light source includes a plurality of laser elements configured to emit laser beams incident on different regions of the curved surface of the condensing lens. The first anti-reflection film and the second anti-reflection film are disposed in different regions of the curved surface. The first anti-reflection film has a reflectance characteristic different from a reflectance characteristic of the second anti-reflection film.

公开(公告)号：US20190372302A1

公开(公告)日：2019-12-05

申请号：US16425898

申请日：2019-05-29

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA

IPC: H01S5/028 ,  H01S5/022 ,  G02B6/122 ,  G02B6/42

Abstract: A light source device includes a sub-mount, a semiconductor laser element flip chip mounted on the sub-mount, and a planar lightwave circuit (PLC) which is an optical member having a waveguide disposed on a substrate. The semiconductor laser element and the waveguide are arranged such that a light-emitting point of the semiconductor laser element and a core of the waveguide are substantially aligned. A light-reflecting surface is provided such that light emitted from the semiconductor laser element and propagating along a propagating direction in the planar lightwave circuit is reflected at the light-reflecting surface in a direction substantially normal to the propagating direction. A portion of the substrate of the planar lightwave circuit is removed at least in a predetermined range from an end opposite to a light incident surface of the planar lightwave circuit.