公开(公告)号：US20230073201A1

公开(公告)日：2023-03-09

申请号：US18054570

申请日：2022-11-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTOKI YAKO ,  ATSUSHI ISHIKAWA ,  KAZUYA HISADA

IPC: G01J3/28 ,  G02B5/20 ,  G02B5/28

Abstract: A filter array used in a light detection device, which generates image data corresponding to each of N wavelength bands (N being an integer greater than or equal to 2) included in a specific wavelength range, includes optical filters. The optical filters include various types of optical filters with different light transmittance with respect to each wavelength band. Mi≥0.1 with respect to each wavelength band, where Mi=μi−σi, μi denoting an average value of light transmittance of the optical filters with respect to light having a wavelength included in an i-th wavelength band (i being an integer greater than or equal to 1 and less than or equal to N) of the N wavelength bands, σi denoting a standard deviation of the light transmittance of the optical filters with respect to the light having the wavelength included in the i-th wavelength band.

公开(公告)号：US20210399148A1

公开(公告)日：2021-12-23

申请号：US17463637

申请日：2021-09-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINYA OKAMOTO ,  ATSUSHI ISHIKAWA ,  YASUHISA INADA

IPC: H01L31/0232 ,  H01L31/0352 ,  H01L31/0224

Abstract: An optical device includes a nanostructure body which induces surface plasmon resonance when irradiated with light, an alloy layer which is in contact with the nanostructure body and which has a lower work function than the nanostructure body, and an n-type semiconductor which is in Schottky contact with the alloy layer. The nanostructure body is composed of one selected from the group consisting of elemental metals, alloys, metal nitrides, and conductive oxides. The alloy layer is composed of at least two metals.

公开(公告)号：US20210391373A1

公开(公告)日：2021-12-16

申请号：US17460398

申请日：2021-08-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINYA OKAMOTO ,  YASUHISA INADA ,  ATSUSHI ISHIKAWA

IPC: H01L27/146 ,  H02S10/30 ,  H01L31/0232 ,  H01L31/108

Abstract: An optical device includes a nanostructure body which induces surface plasmon resonance when irradiated with light, an oxide layer which is in contact with the nanostructure body, an alloy layer which is in contact with the oxide layer and which is made of an alloy containing a first metal and a second metal that are different in work function from each other, and an n-type semiconductor which is in Schottky contact with the alloy layer.

公开(公告)号：US20210141257A1

公开(公告)日：2021-05-13

申请号：US17151398

申请日：2021-01-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YASUHISA INADA ,  ATSUSHI ISHIKAWA ,  YUMIKO KATO

IPC: G02F1/133 ,  G02B6/293 ,  G02B6/35 ,  G02B6/12

Abstract: An optical scan device includes an optical waveguide array, including a plurality of optical waveguides each of which propagates light along a first direction, that emits a light beam, the plurality of optical waveguides being arranged in a second direction that intersects the first direction, a phase shifter array including a plurality of phase shifters connected separately to each of the plurality of optical waveguides, a control circuit that controls a phase shift amount of each of the plurality of phase shifters and/or inputting of light to each of the plurality of phase shifters and thereby controls a direction and shape of the light beam that is emitted from the optical waveguide array, a photodetector that detects the light beam reflected by a physical object, and a signal processing circuit that generates distance distribution data on the basis of output from the photodetector.