公开(公告)号：US20200292928A1

公开(公告)日：2020-09-17

申请号：US16618203

申请日：2018-05-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Yasutaka IMAI

IPC: G03B21/20

Abstract: A light emitting apparatus including a base, a light source, and a plurality of columnar sections that are provided at the base and each include a first phosphor that emits light when irradiated with light emitted from the light source, in which the light source radiates the light to the columnar sections obliquely with respect thereto.

公开(公告)号：US20150180211A1

公开(公告)日：2015-06-25

申请号：US14575071

申请日：2014-12-18

Applicant: Seiko Epson Corporation

Inventor： Yasutaka IMAI

IPC: H01S5/42

CPC classification number: H01S5/42 ,  H01S5/0425 ,  H01S5/18311 ,  H01S5/18313 ,  H01S5/18327 ,  H01S5/18338 ,  H01S5/18341 ,  H01S5/18347 ,  H01S5/1835 ,  H01S5/18352 ,  H01S5/18355 ,  H01S5/3201 ,  H01S2301/176

Abstract: A vertical cavity surface emitting laser includes: a substrate; and a laminated body which is provided over the substrate, wherein the laminated body includes a first mirror layer, an active layer, and a second mirror layer, in a plan view, the laminated body includes a first distortion imparting portion, a second distortion imparting portion, and a resonance portion which is provided between the first distortion imparting portion and the second distortion imparting portion and resonates light generated by the active layer, and an angle formed by a side surface of the first distortion imparting portion and an upper surface of the substrate, and an angle formed by a side surface of the second distortion imparting portion and the upper surface of the substrate are greater than an angle formed by a side surface of the resonance portion and the upper surface of the substrate.

Abstract translation: 垂直腔表面发射激光器包括：衬底; 以及设置在所述基板上的层叠体，其中，所述层叠体包括第一镜面层，有源层和第二镜面层，在俯视图中，所述层叠体包括第一变形赋予部，第二变形赋予 所述谐振部分设置在所述第一变形赋予部分和所述第二变形赋予部分之间并且谐振由所述有源层产生的光，并且由所述第一变形赋予部分的侧表面和所述第一变形赋予部分的上表面形成的角度 基板，并且由第二变形赋予部分的侧表面和基板的上表面形成的角度大于由共振部分的侧表面和基板的上表面形成的角度。

公开(公告)号：US20200313032A1

公开(公告)日：2020-10-01

申请号：US16835407

申请日：2020-03-31

Applicant: Seiko Epson Corporation

Inventor： Yasutaka IMAI ,  Tetsuji FUJITA ,  Koichiro AKASAKA ,  Hideki HAHIRO

IPC: H01L33/00 ,  H01L33/16 ,  H01L33/32

Abstract: A light emitting device includes a substrate, and a laminated structure provided on the substrate, wherein the laminated structure has a plurality of columnar portions, the columnar portion contains a material having a wurtzite-type crystal structure, in a plan view as seen from a layered direction of the laminated structure, the plurality of columnar portions are arranged in a square lattice form or rectangular lattice form, a line passing through centers of the adjacent columnar portions is inclined relative to m-planes of the columnar portions located between the centers of the adjacent columnar portions, and vertices of the adjacent columnar portions are not placed on the line.

公开(公告)号：US20200067271A1

公开(公告)日：2020-02-27

申请号：US16546665

申请日：2019-08-21

Applicant: Seiko Epson Corporation ,  Sophia School Corporation

Inventor： Koichiro AKASAKA ,  Hiroki NISHIOKA ,  Shunsuke ISHIZAWA ,  Takafumi NODA ,  Yasutaka IMAI ,  Katsumi KISHINO ,  Hiroyasu KASEYA ,  Tsuyoshi KANEKO

IPC: H01S5/10 ,  G03B21/20 ,  H01S5/343

Abstract: A projector includes a laser light source, and a light modulating element that modulates light emitted from the laser light source in accordance with image information. The laser light source includes a substrate, and a photonic crystal structure that includes a light emitting layer that emits light, and causes the light emitted by the light emitting layer to be confined in an in-plane direction of the substrate and be emitted in a normal direction of the substrate.

公开(公告)号：US20130027443A1

公开(公告)日：2013-01-31

申请号：US13644663

申请日：2012-10-04

Applicant: Seiko Epson Corporation

Inventor： Yasutaka IMAI

IPC: H01L33/62 ,  G09G5/10

CPC classification number: B82Y20/00 ,  G03B21/005 ,  H01S5/0425 ,  H01S5/1085 ,  H01S5/34326 ,  H01S5/4031 ,  H01S5/50

Abstract: A light emission device includes: first and second clad layers sandwiching an active layer; a first electrode connected with the first clad layer; and second electrodes connected with the second clad layer, at least part of the active layer forms gain areas corresponding to the second electrodes, the gain areas extend from a first side to a second side of the active layer while inclined to a vertical of the first side, at least first and second gain areas form a set of gain areas and a plurality of sets are provided, the first and second gain areas in each set are disposed perpendicular to a direction extending from the first side to the second side, the second electrodes above the first gain areas are interconnected by a first common electrode, and the second electrodes above the second gain areas are interconnected by a second common electrode.

Abstract translation: 发光器件包括：夹持有源层的第一和第二覆盖层; 与所述第一包层连接的第一电极; 以及与所述第二包层连接的第二电极，所述有源层的至少一部分形成对应于所述第二电极的增益区域，所述增益区域从所述有源层的第一侧延伸到第二侧，同时倾斜于所述第一电极的垂直方向 至少第一和第二增益区域形成一组增益区域，并且提供多组，每组中的第一和第二增益区域垂直于从第一侧向第二侧延伸的方向设置，第二增益区域 第一增益区之上的电极通过第一公共电极互连，第二增益区上方的第二电极通过第二公共电极相互连接。

公开(公告)号：US20170117909A1

公开(公告)日：2017-04-27

申请号：US15289311

申请日：2016-10-10

Applicant: Seiko Epson Corporation

Inventor： Yasutaka IMAI

IPC: H03L7/26 ,  H01L33/10 ,  H01L33/64 ,  H01S5/183 ,  H01L33/50 ,  H01S5/343 ,  H01S5/187 ,  H03L1/04 ,  H01L33/40

CPC classification number: H03L7/26 ,  H01L25/167 ,  H01L27/15 ,  H01L33/10 ,  H01L33/40 ,  H01L33/50 ,  H01L33/642 ,  H01S5/0264 ,  H01S5/0425 ,  H01S5/0683 ,  H01S5/183 ,  H01S5/18302 ,  H01S5/18311 ,  H01S5/187 ,  H01S5/34313 ,  H01S2301/176 ,  H03L1/04

Abstract: An atomic oscillator includes: a gas cell sealing alkali metal atoms; a light source emitting light to the gas cell; and a light detection unit detecting a light amount of light transmitted through the gas cell, in which the light source includes a substrate, a first mirror layer disposed on an upper portion of the substrate, an active layer disposed on an upper portion of the first mirror layer, a second mirror layer disposed on an upper portion of the active layer, a first contact layer disposed on an upper portion of the second mirror layer, a light absorption layer disposed on an upper portion of the first contact layer, and a second contact layer disposed on an upper portion of the light absorption layer.

公开(公告)号：US20170062652A1

公开(公告)日：2017-03-02

申请号：US15240180

申请日：2016-08-18

Applicant: Seiko Epson Corporation

Inventor： Yasutaka IMAI

IPC: H01L33/06 ,  H04N9/31 ,  H01L33/10 ,  H01S5/343 ,  H01L33/30 ,  H01L33/00

CPC classification number: H04N9/3161 ,  H01L33/0045 ,  H01L33/025 ,  H01L33/30 ,  H01L33/305 ,  H01S5/162 ,  H01S5/2213 ,  H01S5/2231 ,  H01S5/34326 ,  H01S5/3436 ,  H04N9/3105

Abstract: A light emitting device includes an active layer capable of producing light when current is injected thereinto, a first cladding layer and a second cladding layer that sandwich the active layer, a first electrode electrically connected to the first cladding layer, and a second electrode electrically connected to the second cladding layer. The active layer forms an optical waveguide that guides the light produced in the active layer. The optical waveguide has a window section that is provided in an end portion of the optical waveguide and has a band gap wider than the band gap of the active layer. The carrier concentration of a first layer provided between the window section and the second electrode is lower than the carrier concentration of the second cladding layer.

Abstract translation: 发光装置包括：当注入电流时能够产生光的有源层，夹着有源层的第一包层和第二包层，与第一包层电连接的第一电极和电连接的第二电极 到第二包层。 有源层形成引导有源层中产生的光的光波导。 光波导具有设置在光波导的端部的窗口部，并且具有比有源层的带隙宽的带隙。 设置在窗口部分和第二电极之间的第一层的载流子浓度低于第二包层的载流子浓度。

公开(公告)号：US20130092959A1

公开(公告)日：2013-04-18

申请号：US13693624

申请日：2012-12-04

Applicant: Seiko Epson Corporation

Inventor： Yasutaka IMAI

IPC: H01L27/14

CPC classification number: H01L27/14 ,  H01L27/15 ,  H01L31/1035 ,  H01L31/105 ,  H01L31/173 ,  H01L33/08 ,  H01L33/30 ,  H01S5/0262

Abstract: A light emitting device includes: a light emitting unit and a light receiving unit which are provided on a same substrate, wherein the light emitting unit includes an active layer sandwiched between a first clad layer and a second clad layer, a first electrode electrically connected to the first clad layer, and a second electrode electrically connected to the second clad layer.

Abstract translation: 发光器件包括：发光单元和光接收单元，其设置在同一基板上，其中所述发光单元包括夹在第一覆盖层和第二覆盖层之间的有源层，第一电极电连接到 所述第一覆盖层和与所述第二覆盖层电连接的第二电极。

公开(公告)号：US20220093827A1

公开(公告)日：2022-03-24

申请号：US17481564

申请日：2021-09-22

Applicant: Seiko Epson Corporation

Inventor： Takafumi NODA ,  Hideki HAHIRO ,  Tetsuji FUJITA ,  Atsushi ITO ,  Koichiro AKASAKA ,  Yasutaka IMAI ,  Michifumi NAGAWA

IPC: H01L33/24 ,  H01L33/18 ,  H01L33/10 ,  H01L33/00 ,  G03B21/20

Abstract: A light emitting apparatus according to the present disclosure includes a first layer made of a semiconductor monocrystal, a second layer provided at the first layer and having a crystal orientation not continuous with the crystal orientation of the first layer, and a columnar crystal structure including a light emitting layer and extending from the second layer.

公开(公告)号：US20150180206A1

公开(公告)日：2015-06-25

申请号：US14576823

申请日：2014-12-19

Applicant: Seiko Epson Corporation

Inventor： Yasutaka IMAI

IPC: H01S5/183

CPC classification number: G04F5/145 ,  H01S5/0421 ,  H01S5/0425 ,  H01S5/18313 ,  H01S5/18333 ,  H01S5/1835 ,  H01S5/18352 ,  H03L7/26

Abstract: A vertical cavity surface emitting laser includes: a substrate; and a laminated body which is provided over the substrate, wherein, in a plan view, the laminated body includes a first distortion imparting portion, a second distortion imparting portion, and a resonance portion which is provided between the first distortion imparting portion and the second distortion imparting portion and resonates light generated in the laminated body, and the laminated body includes a first mirror layer which is provided over the substrate, an active layer which is provided over the first mirror layer, a second mirror layer which is provided over the active layer, and a contact layer which is provided over the second mirror layer of the resonance portion, except for a portion over the second mirror layer of the first distortion imparting portion and for a portion over the second mirror layer of the second distortion imparting portion.

Abstract translation: 垂直腔表面发射激光器包括：衬底; 以及设置在所述基板上的层叠体，其中，在平面图中，所述层叠体包括第一变形赋予部，第二变形赋予部以及设置在所述第一变形赋予部与所述第二变形赋予部之间的共鸣部 变形赋予部分并且谐振在层叠体中产生的光，并且层叠体包括设置在基板上的第一镜层，设置在第一镜层上的有源层，设置在活性物体上的第二镜层 层和设置在谐振部分的第二镜面层上方的接触层，除了第一变形赋予部分的第二镜面层上的部分和第二变形赋予部分的第二镜像层上的部分之外。