公开(公告)号：US20190146209A1

公开(公告)日：2019-05-16

申请号：US16230414

申请日：2018-12-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yasuhisa INADA ,  Akira HASHIYA ,  Taku HIRASAWA

IPC: G02B26/08 ,  G02F1/29 ,  G01S7/481 ,  G02B17/00 ,  G02B26/10

CPC classification number: G02B26/0816 ,  G01S7/4817 ,  G02B17/004 ,  G02B26/06 ,  G02B26/101 ,  G02F1/29 ,  G02F1/292 ,  G02F2001/291

Abstract: An optical scanning device including: a first mirror having a first reflecting surface; a second mirror having a second reflecting surface; two non-waveguide regions disposed between the first and second mirrors and that are spaced apart from each other in a first direction parallel to at least either the first reflecting surface or the second reflecting surface; and an optical waveguide region disposed between the first and second mirrors and that is sandwiched between the two non-waveguide regions. The optical waveguide region propagates light in a second direction that crosses the first direction. The optical waveguide region and the two non-waveguide regions include respective first regions in which a common material exists. The optical waveguide region or each of the two non-waveguide regions further includes a second region in which a first material having a refractive index different from the refractive index of the common material exists.

公开(公告)号：US20210033787A1

公开(公告)日：2021-02-04

申请号：US17074874

申请日：2020-10-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira HASHIYA ,  Yasuhisa INADA ,  Taku HIRASAWA ,  Yoshikazu YAMAOKA ,  Nobuaki NAGAO

IPC: G02B6/122 ,  G02B26/12 ,  G01S7/481 ,  G02B26/08 ,  G01S17/42 ,  G01S17/89 ,  G02B26/10 ,  G02B26/06 ,  G02F1/295

Abstract: An optical scanning device includes a waveguide array including a plurality of waveguides arranged in a first direction. Each waveguide includes: an optical waveguide layer that propagates light supplied to the waveguide in a second direction intersecting the first direction; a first mirror having a first reflecting surface intersecting a third direction; and a second mirror having a second reflecting surface that faces the first reflecting surface. The optical waveguide layer is located between the first and second mirrors and has a variable thickness and/or a variable refractive index for the light. The width of the first mirror and the width of the second mirror are each larger than the width of the optical waveguide layer. The first mirror has a higher light transmittance than the second mirror and allows part of the light propagating through the optical waveguide layer to be emitted in the third direction.

公开(公告)号：US20160322607A1

公开(公告)日：2016-11-03

申请号：US15104366

申请日：2014-11-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO. LTD.

Inventor： Yoshitaka NAKAMURA ,  Yasuhisa INADA ,  Akira HASHIYA ,  Taku HIRASAWA

IPC: H01L51/52 ,  H01L51/56 ,  H01L51/50

CPC classification number: H01L51/5275 ,  H01L51/5012 ,  H01L51/5203 ,  H01L51/5268 ,  H01L51/56 ,  H01L2251/5361

Abstract: An illuminator includes: a light-emitting element and a light-extraction layer which transmits light occurring from the light-emitting element. The light-emitting element includes a first electrode layer on the light-extraction layer side, the first electrode layer having a light transmitting property; a second electrode layer on the opposite side from the light-extraction layer; an emission layer between the first and the second electrode layers; and a feed portion disposed close to the first electrode layer, the second electrode layer, and the emission layer to apply a voltage between the first electrode layer and the second electrode layer. The light-extraction layer has a structure in which a low-refractive index layer having a relatively low refractive index and a high-refractive index layer having a higher refractive index than does the low-refractive index layer are stacked, an interface between the low-refractive index layer and the high-refractive index layer representing bump-dent features.

Abstract translation: 照明器包括：发光元件和透光从发光元件发出的光的光提取层。 发光元件包括在光提取层侧的第一电极层，第一电极层具有透光性; 与所述光提取层相反一侧的第二电极层; 在第一和第二电极层之间的发射层; 以及靠近第一电极层，第二电极层和发射层设置的馈电部分，以在第一电极层和第二电极层之间施加电压。 光提取层具有层叠具有折射率相对较低的折射率低折射率层和折射率高于低折射率层的高折射率层的结构，低折射率层之间的界面 - 折射率层和表示凹凸特征的高折射率层。

公开(公告)号：US20240295638A1

公开(公告)日：2024-09-05

申请号：US18657328

申请日：2024-05-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuki NAKAMURA ,  Yasuhisa INADA ,  Taku HIRASAWA

IPC: G01S7/481 ,  G02B5/04 ,  G02B5/18 ,  G02F1/295

CPC classification number: G01S7/4817 ,  G02B5/04 ,  G02B5/1861 ,  G02F1/2955

Abstract: An optical device includes: a first mirror having a first reflecting surface extending in a first direction and a second direction perpendicular to the first direction; a second mirror having a second reflecting surface; an optical waveguide layer that is located between the first and second mirrors and propagates light in the first direction; and an optical element that is disposed on the first mirror and emits incident light in a direction different from an incident direction. The optical element emits (1) incident light entering from the optical waveguide layer through the first mirror in a direction whose first direction component is smaller than that of an incident direction of the incident light by refraction and/or diffraction or (2) incident light entering from the outside in a direction whose first direction component is larger than that of an incident direction by refraction and/or diffraction.

公开(公告)号：US20200033455A1

公开(公告)日：2020-01-30

申请号：US16596072

申请日：2019-10-08

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yasuhisa INADA ,  Taku HIRASAWA ,  Akira HASHIYA

IPC: G01S7/481 ,  G01S17/42 ,  F21V8/00

Abstract: An optical scanning system including an optical scanning device, and a photoreceiver device. The optical scanning device includes: a first waveguide array including a plurality of first waveguides; and a first phase shifter for adjusting phases of light propagating through the plurality of first waveguides to change an emission direction of emission light from the plurality of first waveguides. The photoreceiver device includes: a second waveguide array including a plurality of second waveguides configured to receive reflected light and propagate the received reflected light; and a second phase shifter for adjusting phases of the received reflected light propagating through the plurality of second waveguides to change a reception direction of the reflected light received by the plurality of second waveguides. An array pitch of the plurality of first waveguides in the optical scanning device differs from an array pitch of the plurality of second waveguides in the photoreceiver device.