公开(公告)号：US20200003873A1

公开(公告)日：2020-01-02

申请号：US16568247

申请日：2019-09-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NOBUAKI NAGAO ,  YOSHIKAZU YAMAOKA ,  YASUHISA INADA ,  AKIRA HASHIYA ,  TAKU HIRASAWA

IPC: G01S7/481 ,  G02F1/295 ,  G01S17/06

Abstract: An optical scanning device includes: first and second mirrors; an optical waveguide layer disposed between the first and second mirrors; a pair of electrodes sandwiching the optical waveguide layer; and a driving circuit that applies a voltage to the pair of electrodes. The first mirror has a higher light transmittance than the second mirror and emits part of light propagating through the optical waveguide layer to the outside. The optical waveguide layer contains a liquid crystal material or an electrooptical material. The alignment direction of the liquid crystal material or the direction of a polarization axis of the electrooptical material is parallel or perpendicular to the direction in which the optical waveguide layer extends. The driving circuit applies the voltage to the pair of electrodes to change the refractive index of the liquid crystal material or the electrooptical material to thereby change the light emission direction.

公开(公告)号：US20240389444A1

公开(公告)日：2024-11-21

申请号：US18784978

申请日：2024-07-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOSHIKAZU YAMAOKA ,  SHINICHI MACHIDA ,  SANSHIRO SHISHIDO

IPC: H10K71/00 ,  H10K39/32

Abstract: A method for manufacturing a functional element includes: preparing a substrate at an upper surface of which a first electrode and a second electrode are exposed; forming a first film above the substrate, the first film being provided with a gap where at least part of an upper surface of the first electrode is exposed; forming a second film on the first electrode, the second electrode, and the first film using a coating method; exposing the at least part of the upper surface of the first electrode by removing a portion of the second film that is on the first electrode; and forming an electric contact on the first electrode.

公开(公告)号：US20230238413A1

公开(公告)日：2023-07-27

申请号：US18194669

申请日：2023-04-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOSHIKAZU YAMAOKA ,  MOTOKI YAKO ,  ATSUSHI ISHIKAWA ,  CHIKAI HOSOKAWA ,  TAKU HIRASAWA

IPC: H01L27/146 ,  G01J3/28 ,  G02B5/20 ,  H04N25/13

CPC classification number: H01L27/14625 ,  G01J3/2823 ,  G02B5/201 ,  H01L27/14618 ,  H01L27/1462 ,  H01L27/14627 ,  H01L27/14645 ,  H01L27/14685 ,  H04N25/135 ,  G01J2003/2826 ,  G02B1/11

Abstract: A light detecting device is provided with: a filter array including filters arranged two-dimensionally, each of the filters having a light-incident surface and a light-emitting surface, the filters including multiple types of filters having mutually different transmission spectra; and an image sensor having a light-detecting surface facing the light-emitting surface, the image sensor being provided with light-detecting elements arranged two-dimensionally on the light-detecting surface, wherein the distance between the light-emitting surface and the light-detecting surface is different for each of the filters.

公开(公告)号：US20190004393A1

公开(公告)日：2019-01-03

申请号：US16108129

申请日：2018-08-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIRA HASHIYA ,  YASUHISA INADA ,  TAKU HIRASAWA ,  YOSHIKAZU YAMAOKA ,  NOBUAKI NAGAO

IPC: G02F1/295 ,  G01S7/481 ,  G01S17/89

Abstract: An optical scanning device includes: a first waveguide that propagates light by total reflection; and a second waveguide. The second waveguide includes: a first multilayer reflective film; a second multilayer reflective film that faces the first multilayer reflective film; and a first optical waveguide layer directly connected to the first waveguide and located between the first and second multilayer reflective films. The first optical waveguide layer has a variable thickness and/or a variable refractive index and propagates the light transmitted through the first waveguide. The first multilayer reflective film has a higher light transmittance than the second multilayer reflective film and allows part of the light propagating through the first optical waveguide layer to be emitted to the outside. By changing the thickness of the first optical waveguide layer and/or its refractive index, the direction of the part of the light emitted from the second waveguide is changed.

公开(公告)号：US20180372951A1

公开(公告)日：2018-12-27

申请号：US16116499

申请日：2018-08-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIRA HASHIYA ,  YASUHISA INADA ,  TAKU HIRASAWA ,  YOSHIKAZU YAMAOKA ,  NOBUAKI NAGAO

IPC: G02B6/122 ,  G02B26/12 ,  G02B26/08

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.