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公开(公告)号:US20220210310A1
公开(公告)日:2022-06-30
申请号:US17695728
申请日:2022-03-15
Inventor: KATSUYA NOZAWA
Abstract: An imaging apparatus includes: an imaging device that has variable sensitivity and that acquires images with a sampling cycle; and a control circuit that controls the imaging device. The control circuit changes a sensitivity of the imaging device with a first cycle shorter than the sampling cycle. Based on control of the control circuit, the imaging device acquires a plurality of images of a subject with the sampling cycle. The subject includes a first component that changes with a second cycle different from the first cycle.
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公开(公告)号:US20210202582A1
公开(公告)日:2021-07-01
申请号:US17205061
申请日:2021-03-18
Inventor: KATSUYA NOZAWA , TAKEYOSHI TOKUHARA , NOZOMU MATSUKAWA , SANSHIRO SHISHIDO
Abstract: An imaging device includes: a semiconductor substrate; pixel electrodes located above the semiconductor substrate and each electrically connected to the semiconductor substrate; a counter electrode located above the pixel electrodes; a first photoelectric conversion layer located between the counter electrode and the pixel electrodes; and at least one first light-shielding body located in or above the first photoelectric conversion layer. The first photoelectric conversion layer contains a semiconducting carbon nanotube that absorbs light in a first wavelength range and an organic molecule that covers the semiconducting carbon nanotube, absorbs light in a second wavelength range, and emits fluorescence in a third wavelength range. The at least one first light-shielding body absorbs or reflects light with a wavelength in at least part of the second wavelength range.
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公开(公告)号:US20210066360A1
公开(公告)日:2021-03-04
申请号:US17095691
申请日:2020-11-11
Inventor: YUUKO TOMEKAWA , KATSUYA NOZAWA
IPC: H01L27/146 , H01L27/30
Abstract: An image sensor includes pixel electrodes, a control electrode, a photoelectric conversion film arranged on the pixel electrodes, a transparent electrode arranged on the photoelectric conversion film, an insulating layer arranged on at least a portion of a top surface of the transparent electrode, and a connection layer that electrically connects the control electrode to the transparent electrode. The connection layer is in contact with at least one side surface of the transparent electrode. A side surface of the insulating layer, the at least one side surface of the transparent electrode, and a side surface of the photoelectric conversion film are aligned with each other.
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公开(公告)号:US20190267560A1
公开(公告)日:2019-08-29
申请号:US16274154
申请日:2019-02-12
Inventor: MASAYA HIRADE , MANABU NAKATA , KATSUYA NOZAWA , YASUNORI INOUE
Abstract: A method for manufacturing a photoelectric conversion element includes providing a base structure including a semiconductor substrate having a principal surface, a first electrode located on or above the principal surface, second electrodes which are located on or above the principal surface and which are one- or two-dimensionally arranged, and a photoelectric conversion film covering at least the second electrodes; forming a mask layer on the photoelectric conversion film, the mask layer being conductive and including a covering section covering a portion of the photoelectric conversion film that overlaps the second electrodes in plan view; and partially removing the photoelectric conversion film by immersing the base structure and the mask layer in an etchant.
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公开(公告)号:US20190214427A1
公开(公告)日:2019-07-11
申请号:US16216203
申请日:2018-12-11
Inventor: KATSUYA NOZAWA , YASUNORI INOUE
IPC: H01L27/146 , H04N5/374
CPC classification number: H01L27/14643 , H01L27/14603 , H01L27/14612 , H01L27/14636 , H04N5/374
Abstract: An image sensor includes: a substrate; pixel electrodes disposed on the substrate; a control electrode disposed on the substrate; a photoelectric conversion film disposed on the pixel electrodes; a transparent electrode disposed on the photoelectric conversion film; and a connector that is made of a metal or a metal nitride and electrically connects the control electrode to the transparent electrode. The control electrode is configured to be connected to a circuit that applies a voltage to the photoelectric conversion film. The transparent electrode is made of a semiconductor, and the control electrode is made of a metal or a metal nitride. The connector includes a first region in contact with the transparent electrode and a second region in contact with the control electrode. The area of the first region is larger than the area of the second region.
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公开(公告)号:US20170332025A1
公开(公告)日:2017-11-16
申请号:US15497157
申请日:2017-04-25
Inventor: KATSUYA NOZAWA , YASUO MIYAKE
IPC: H04N5/374 , H04N5/378 , H01L27/144 , H04N5/225 , H01L27/146 , H04N5/369 , H04N5/351
Abstract: An imaging system includes a first illuminator that irradiates a subject with light whose intensity varies over time; and a first imaging device that includes a first imaging cell having a variable sensitivity, and a first sensitivity control line electrically connected to the first imaging cell. The first imaging cell includes a photoelectron conversion area that receives light from the subject to generate a signal charge, and a signal detection circuit that detects the signal charge. During an exposure period, the first sensitivity control line supplies to the first imaging cell a first sensitivity control signal having a waveform expressed by a first function that takes only positive values by adding a first constant to one basis from among bases of a system of functions constituting an orthogonal system
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公开(公告)号:US20160061655A1
公开(公告)日:2016-03-03
申请号:US14825304
申请日:2015-08-13
Inventor: KATSUYA NOZAWA
CPC classification number: G01J1/0407 , G01S7/4802 , G01S7/487 , G01S7/4917 , G01S7/493 , G01S7/499 , G01S17/10 , G01S17/107 , G01S17/32 , G01S17/36 , G01S17/89 , G01S17/936 , G02F1/3534
Abstract: A measurement system, comprising: a first light source that generates first light and irradiates an object with the first light, at least one of an intensity, a polarization state, and a wavelength being modulated with a first period in the first light; a second light source that generates second light, at least one of an intensity, a polarization state, and a wavelength being modulated with a second period in the second light; a first optical system that mixes light from the object based on the first light with the second light; a nonlinear optical crystal that generates third light from the mixed light by sum-frequency generation phenomenon, the third light having a frequency equivalent to a sum of a frequency of the light from the object based on the first light and a frequency of the second light; and a photodetector that measures an intensity of the third light.
Abstract translation: 一种测量系统,包括:第一光源,其产生第一光并用第一光照射具有第一光的第一周期的强度,偏振状态和波长中的至少一个中的至少一个; 第二光源,其产生第二光,在第二光中以第二周期调制的强度,偏振状态和波长中的至少一个; 第一光学系统,其将来自所述物体的来自所述第一光的光与所述第二光混合; 通过和频产生现象从混合光产生第三光的非线性光学晶体,具有与基于第一光的来自物体的光的频率和第二光的频率相等的频率的频率的第三光 ; 以及测量第三光强度的光电检测器。
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