公开(公告)号：US11933897B2

公开(公告)日：2024-03-19

申请号：US17061561

申请日：2020-10-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhisa Ide ,  Masaomi Inoue ,  Hirotaka Ueno ,  Kouichi Kumamaru ,  Masahiro Shiihara ,  Kouichi Bairin ,  Takashi Haruguchi ,  Kiyoshi Hibino

IPC: G01S17/10 ,  G01S7/481 ,  G02B26/10

CPC classification number: G01S17/10 ,  G01S7/4812 ,  G01S7/4814 ,  G01S7/4817 ,  G02B26/10

Abstract: A distance measurement device includes: a mirror disposed so as to be tilted relative to a rotation center axis; a drive unit configured to rotate the mirror about the rotation center axis; a photodetector configured to detect reflected light, of laser light, reflected in a distance measurement region; and a condensing lens disposed on the rotation center axis and configured to condense the reflected light reflected by the mirror, on the photodetector. The mirror has a shape elongated in one direction and is disposed such that a short axis thereof is tilted relative to the rotation center axis in a direction parallel to a plane including the rotation center axis. A width in a short-axis direction of the mirror is smaller than a width of a lens portion of the condensing lens as viewed in a direction parallel to the rotation center axis.

公开(公告)号：US11024777B2

公开(公告)日：2021-06-01

申请号：US16399790

申请日：2019-04-30

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuhiko Yamanaka ,  Kenichi Matsumoto ,  Hideo Yamaguchi ,  Wakahiko Okazaki ,  Yasuhiko Enami ,  Taku Kobayashi ,  Kazuki Adachi ,  Hirotaka Ueno

IPC: H01L33/50 ,  H01L33/36 ,  G02B5/20 ,  H01L33/58 ,  H05B33/08 ,  B60Q11/00 ,  H01S5/022 ,  F21V23/00 ,  B60Q1/04 ,  H05B45/37 ,  H05B45/18

Abstract: A light source device includes a mounted substrate which is a multi-layered substrate, a semiconductor light-emitting device which emits a laser beam, a wavelength-converting member which radiates fluorescence by being irradiated with the laser beam emitted from the semiconductor light-emitting device as an excitation light, a state detection circuit, an electric field effect type transistor which adjusts an electric current amount applied to the semiconductor light-emitting device upon receipt of an output from the state detection circuit, and an external connecting member, and the semiconductor light-emitting device, the state detection circuit, the transistor, and the external connecting member are mounted on the single mounted substrate.

公开(公告)号：US10777711B2

公开(公告)日：2020-09-15

申请号：US15951897

申请日：2018-04-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuhiko Yamanaka ,  Hideki Kasugai ,  Hirotaka Ueno ,  Kimihiro Murakami

IPC: H01L33/50 ,  F21V29/502 ,  F21S2/00 ,  F21V7/22 ,  F21S41/176 ,  F21S41/16 ,  H01L33/00 ,  H01L33/60 ,  H01L33/62 ,  G02B5/02

Abstract: A light emitting device includes a wavelength conversion element, and an excitation light source which radiates excitation light to the wavelength conversion element. The wavelength conversion element includes a support member having a supporting surface, and a wavelength conversion member disposed on the supporting surface so as to be contained within the support member when the support member is viewed from the supporting surface side. An outer peripheral region on the support member, which is an outer peripheral portion of an arrangement region including the wavelength conversion member and is exposed from the wavelength conversion member, includes a light absorbing portion which can absorb first light having same wavelength as the excitation light or a light scattering portion which can scatter the first light. The arrangement region includes a reflective member which is disposed between the wavelength conversion member and the support member, and is different from the support member.

公开(公告)号：US12044801B2

公开(公告)日：2024-07-23

申请号：US17153823

申请日：2021-01-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kiyoshi Hibino ,  Takashi Haruguchi ,  Masaomi Inoue ,  Kazuhisa Ide ,  Masahiro Shiihara ,  Kouichi Bairin ,  Kouichi Kumamaru ,  Hirotaka Ueno ,  Hideo Yamaguchi

IPC: G01S7/48 ,  G01S7/481 ,  G02B26/08 ,  G02B26/10

CPC classification number: G01S7/4813 ,  G01S7/4817 ,  G02B26/0816 ,  G02B26/10

Abstract: A distance measurement device for measuring a distance to an object that exists in a distance measurement region includes: a light source configured to emit laser light; a lens configured to converge the laser light emitted from the light source, into substantially parallel light; a tubular light blocking member disposed on an optical path of the laser light emitted from the light source and surrounding the optical path; a photodetector configured to detect reflected light, of the laser light, reflected at the distance measurement region; and a condensing lens configured to condense the reflected light passing through the outside of the light blocking member, onto the photodetector.

公开(公告)号：US20230408652A1

公开(公告)日：2023-12-21

申请号：US18241762

申请日：2023-09-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirotaka Ueno ,  Kiyoshi Morimoto ,  Keisuke Kojima

IPC: G01S7/484 ,  G01S7/481 ,  G01R15/04 ,  G01S17/10 ,  G01R19/00

CPC classification number: G01S7/484 ,  G01S7/4814 ,  G01R15/04 ,  G01S17/10 ,  G01R19/0084

Abstract: A light emission device includes: a laser light source; an electric storage element for supplying a drive current to the laser light source; a plurality of switch elements connected in series to the laser light source; and an electrical element placed at least between a ground and an input part, for a switch opening/closing signal, of the switch element to which another one of the switch elements is connected on a downstream side, and configured to guide noise having a high level exceeding a voltage level of the switch opening/closing signal, to the ground.

公开(公告)号：US10514158B2

公开(公告)日：2019-12-24

申请号：US15926613

申请日：2018-03-20

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Masaharu Fukakusa ,  Hideo Yamaguchi ,  Hirotaka Ueno ,  Kazuhiko Yamanaka

IPC: F21V29/503 ,  F21V29/507 ,  F21V29/70 ,  H01S5/00 ,  F21V29/502 ,  F21V9/30 ,  F21K9/64 ,  F21V13/08 ,  F21K99/00

Abstract: A light source device includes: a holder that has a first surface and a second surface located higher than the first surface, and is an integral structure; a semiconductor light-emitting device on the first surface; an optical element unit that is disposed above the semiconductor light-emitting device, and has a reflective surface that inclines with respect to the first surface and reflects emitted light from the semiconductor light-emitting device; and a phosphor optical element that is disposed on the second surface and irradiated with reflected light from the optical element unit.

公开(公告)号：US20210018625A1

公开(公告)日：2021-01-21

申请号：US17061561

申请日：2020-10-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhisa Ide ,  Masaomi Inoue ,  Hirotaka Ueno ,  Kouichi KUMAMARU ,  Masahiro SHIIHARA ,  Kouichi BAIRIN ,  Takashi HARUGUCHI ,  Kiyoshi HIBINO

IPC: G01S17/10 ,  G01S7/481

Abstract: A distance measurement device includes: a mirror disposed so as to be tilted relative to a rotation center axis; a drive unit configured to rotate the mirror about the rotation center axis; a photodetector configured to detect reflected light, of laser light, reflected in a distance measurement region; and a condensing lens disposed on the rotation center axis and configured to condense the reflected light reflected by the mirror, on the photodetector. The mirror has a shape elongated in one direction and is disposed such that a short axis thereof is tilted relative to the rotation center axis in a direction parallel to a plane including the rotation center axis. A width in a short-axis direction of the mirror is smaller than a width of a lens portion of the condensing lens as viewed in a direction parallel to the rotation center axis.