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公开(公告)号：US20220415970A1
公开(公告)日：2022-12-29
申请号：US17821816
申请日：2022-08-24
发明人： KATSUYA NOZAWA
摘要： An image sensor includes a function layer including a photoelectric conversion region containing a plurality of semiconductor-type carbon nanotubes; a transparent electrode that collects first electric charges that are positive electric charges or negative electric charges, the positive electric charges or the negative electric charges being generated in the photoelectric conversion region upon entry of light; a first collection electrode that collects second electric charges having a polarity opposite to the first electric charges among the positive electric charges and the negative electric charges; a second collection electrode that collects the second electric charges; a first control electrode that controls movement of the second electric charges toward the first collection electrode; a second control electrode that controls movement of the second electric charges toward the second collection electrode; and an electric charge accumulator in which the second electric charges collected by the first collection electrode are accumulated.
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公开(公告)号：US20220336745A1
公开(公告)日：2022-10-20
申请号：US17809026
申请日：2022-06-27
摘要： An organic device includes at least one electrode, an insulating layer adjacent to the at least one electrode in a plan view, and an organic layer that is continuously in contact with an upper surface of the at least one electrode and an upper surface of the insulating layer. The organic layer contains a polymer of an organic material. The organic material contains a basic molecular skeleton and a polymerizable functional group. In the polymer, the organic material is polymerized through the polymerizable functional group.
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公开(公告)号：US20210202551A1
公开(公告)日：2021-07-01
申请号：US17204851
申请日：2021-03-17
IPC分类号： H01L27/146
摘要： An imaging device includes a pixel electrode, a counter electrode, a first quantum dot that includes a first core which generates first signal charge and a first shell, a second quantum dot that includes a second core which generates second signal charge and a second shell. In a case where the potential difference between the pixel electrode and the counter electrode is a first potential difference, the first signal charge does not pass through the first shell and is held in the first core and the second signal charge passes through the second shell and is collected by the pixel electrode. In a case where the potential difference between the pixel electrode and the counter electrode is a second potential difference which is larger than the first potential difference, the first signal charge passes through the first shell and is collected by the pixel electrode.
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公开(公告)号：US20240119645A1
公开(公告)日：2024-04-11
申请号：US18540962
申请日：2023-12-15
发明人： MOTOKI YAKO , TAKAYUKI KIYOHARA , KATSUYA NOZAWA
CPC分类号： G06T11/001 , G06T7/90 , H04N25/13 , G06T2200/24 , G06T2207/10024
摘要： A signal processing method executed by a computer includes acquiring compressed image data including two-dimensional image information of a subject obtained by compressing hyperspectral information in a target wavelength region, acquiring reference spectrum data including information on one or more spectra associated with the subject, and generating, from the compressed image data, pieces of two-dimensional image data corresponding to designated wavelength bands decided on the basis of the reference spectrum data.
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公开(公告)号：US20230025030A1
公开(公告)日：2023-01-26
申请号：US17938515
申请日：2022-10-06
发明人： KATSUYA NOZAWA
摘要： An imaging system includes: a first light source that emits first light having a spectrum including discrete first frequency components arranged at first frequency intervals; a second light source that emits second light having a spectrum including discrete second frequency components arranged at second frequency intervals, the second frequency intervals being different from the first frequency intervals; a mixing optical system that mixes the first light and the second light to generate third light including at least one optical beat the intensity of which changes at a beat frequency expressed by the difference between at least one of the discrete first frequency components and at least one of the discrete second frequency components; an imaCCging element having a variable sensitivity in an exposure period; and a control circuit that changes the sensitivity of the imaging element at the beat frequency of the at least one optical beat.
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公开(公告)号：US20190312080A1
公开(公告)日：2019-10-10
申请号：US16447147
申请日：2019-06-20
发明人： KATSUYA NOZAWA
IPC分类号： H01L27/148 , H01L27/142 , H04N5/235 , G06T7/73
摘要： An imaging system includes an imaging optical system, an imaging device, an actuator, and control circuitry. The actuator changes a relative position of a plurality of pixel cells and an image of a subject. The pixel cells have variable sensitivity, and include a photoelectric converter and a charge accumulation region. The control circuitry sets the relative position to a first position, and also sets the sensitivity of each pixel cell to a first sensitivity. A first signal charge obtained at the photoelectric converter is accumulated in the charge accumulation region. The relative position is set to a second position different from the first position, and also the sensitivity of each pixel cell is set to a second sensitivity different from the first sensitivity. A second signal charge obtained at the photoelectric converter is accumulated in the charge accumulation region in addition to the first signal charge.
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7.发明申请公开(公告)号：US20190007594A1
公开(公告)日：2019-01-03
申请号：US16124435
申请日：2018-09-07
发明人： SATOSHI SATO , SANSHIRO SHISHIDO , KATSUYA NOZAWA , TAKEO AZUMA , MASAAKI YANAGIDA , TAKEYOSHI TOKUHARA , KUNIO NOBORI
摘要： A three-dimensional motion obtaining apparatus includes: a light source; a charge amount obtaining circuit that includes pixels and obtains, for each of the pixels, a first charge amount under a first exposure pattern and a second charge amount under a second exposure pattern having an exposure period that at least partially overlaps an exposure period of the first exposure pattern; and a processor that controls a light emission pattern for the light source, the first exposure pattern, and the second exposure pattern. The processor estimates a distance to a subject for each of the pixels on the basis of the light emission pattern and on the basis of the first charge amount and the second charge amount of each of the pixels obtained by the charge amount obtaining circuit, and estimates an optical flow for each of the pixels on the basis of the first exposure pattern, the second exposure pattern, and the first charge amount and the second charge amount obtained by the charge amount obtaining circuit.
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公开(公告)号：US20230401303A1
公开(公告)日：2023-12-14
申请号：US18454244
申请日：2023-08-23
发明人： KATSUYA NOZAWA
IPC分类号： G06F21/32 , G06V10/141 , G06V40/12
CPC分类号： G06F21/32 , G06V10/141 , G06V40/1341 , G06V40/1371
摘要： A contactless authentication system includes: at least one illumination apparatus that projects illumination light onto a portion of a hand, the portion being not in contact of an object, the illumination light containing a light component in a wavelength range greater than or equal to 1380 nm; and an imaging apparatus that obtains at least one selected from the group consisting of a fingerprint image and a palm print image as authentication information by imaging the light component in the wavelength range in reflected light generated by reflection of the illumination light from the portion of the hand.
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公开(公告)号：US20220216440A1
公开(公告)日：2022-07-07
申请号：US17700941
申请日：2022-03-22
摘要： A photoelectric conversion element includes: a first electrode; a second electrode; and a photoelectric conversion layer disposed between the first electrode and the second electrode and containing semiconducting carbon nanotubes and a first material that functions as a donor or an acceptor for the semiconducting carbon nanotubes. The semiconducting carbon nanotubes have light absorption characteristics including a first absorption peak at a first wavelength, a second absorption peak at a second wavelength shorter than the first wavelength, and a third absorption peak at a third wavelength shorter than the second wavelength. The first material is transparent to light in at least one wavelength range selected from the group consisting of a first wavelength range between the first wavelength and the second wavelength and a second wavelength range between the second wavelength and the third wavelength.
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10.发明申请公开(公告)号：US20180374979A1
公开(公告)日：2018-12-27
申请号：US15993552
申请日：2018-05-30
发明人： KATSUYA NOZAWA
IPC分类号： H01L31/107 , H01L51/42 , H01L31/02 , H01L31/0352
CPC分类号： H01L31/1075 , H01L27/307 , H01L31/02027 , H01L31/035218 , H01L31/107 , H01L51/0036 , H01L51/0038 , H01L51/0043 , H01L51/0047 , H01L51/0048 , H01L51/0078 , H01L51/4213 , H01L51/44 , H01L2031/0344
摘要： A photodetection element includes: a photoelectric conversion structure that contains a first material having an absorption coefficient higher than an absorption coefficient of monocrystalline silicon for light of a first wavelength, for which monocrystalline silicon exhibits absorption, and generates positive and negative charges by absorbing a photon; and an avalanche structure that includes a monocrystalline silicon layer, in which avalanche multiplication occurs as a result of injection of at least one selected from the group consisting of the positive and negative charges from the photoelectric conversion structure. The first material includes at least one selected from the group consisting of an organic semiconductor, a semiconductor-type carbon nanotube, and a semiconductor quantum dot.
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