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公开(公告)号:US11729529B1
公开(公告)日:2023-08-15
申请号:US17825797
申请日:2022-05-26
发明人: Zhe Gao , Hiroaki Ebihara , Ling Fu , Tiejun Dai
IPC分类号: H04N25/75 , H04N25/53 , H04N25/62 , H04N25/65 , H04N25/771 , H04N25/532
CPC分类号: H04N25/75 , H04N25/53 , H04N25/62 , H04N25/65 , H04N25/771
摘要: A global shutter readout circuit includes a reset transistor coupled between a reset voltage and a bitline. A pixel enable transistor is coupled between the reset transistor and a source follower transistor. First and second terminals of the pixel enable transistor are coupled together in response to a pixel enable signal coupled to a third terminal of the pixel enable transistor. A first storage transistor coupled to the second terminal of the pixel enable transistor and the gate of the source follower transistor. A first storage capacitor is coupled to the first storage transistor. A second storage transistor coupled to the second terminal of the pixel enable transistor and the gate of the source follower transistor. A second storage capacitor is coupled to the second storage transistor. A row select transistor is coupled to the source follower transistor to generate an output signal from the global shutter readout circuit.
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公开(公告)号:US11722797B2
公开(公告)日:2023-08-08
申请号:US17509165
申请日:2021-10-25
申请人: FUJIFILM Corporation
发明人: Tomoyuki Kawai
摘要: Provided are a leakage light detection device, an imaging device, a leakage light detection method, and a non-transitory computer readable recording medium storing a leakage light detection program capable of improving quality of a captured image. A determination unit (11A) compares a pixel value (Gu3) of a pixel (G12) with a pixel value (Gb1) of a pixel (G14) and determines that the pixel (G12) has leakage light from a pixel (G11) in a case where the pixel value (Gu3) is larger than the pixel value (Gb1) by a threshold (TH) or more, and compares a pixel value (Gd3) of a pixel (G13) with the pixel value (Gb1) of the pixel (G14) and determines that the pixel (G13) has the leakage light from the pixel (G11) in a case where the pixel value (Gd3) is larger than the pixel value (Gb1) by the threshold (TH) or more.
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公开(公告)号:US20230156365A1
公开(公告)日:2023-05-18
申请号:US18156046
申请日:2023-01-18
发明人: Mahito Shinohara
IPC分类号: H04N25/75 , H01L27/146 , H01L31/107 , H01L31/02 , H04N25/62
CPC分类号: H04N25/75 , H01L27/14612 , H01L31/107 , H01L31/02027 , H01L27/14643 , H04N25/62 , H04N25/76
摘要: A photoelectric conversion device includes a photoelectric conversion region, a readout circuit, and a counting circuit. The photoelectric conversion region is configured to generate a signal charge. The readout circuit is configured to, when reading out a signal that is based on the signal charge generated at the photoelectric conversion region, selectively perform first readout for reading out the signal using avalanche multiplication that is based on the signal charge and second readout for reading out the signal without causing avalanche multiplication to occur with respect to at least a part of the signal charge. The counting circuit is configured to count a number of occurrences of avalanche current which is caused to occur by avalanche multiplication in the first readout.
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公开(公告)号:US20240334081A1
公开(公告)日:2024-10-03
申请号:US18578911
申请日:2022-03-16
摘要: Imaging elements and imaging devices that reduce leakage of electric charges in a photoelectric conversion unit are disclosed. In one example, an imaging element includes photoelectric conversion units for generating an image signal corresponding to incident light. A charge retaining unit receives and retains sequentially transferred electric charges from the photoelectric conversion units. Charge transfer units are disposed for each of the photoelectric conversion units and transfer the electric charges to the charge retaining unit. Charge transfer signal lines are capacitively coupled to the charge retaining unit and are respectively connected to the charge transfer units to transmit a control signal. The charge transfer signal line connected to an earliest charge transfer unit that transfers the electric charges earliest in an image signal generation period is configured to have higher capacitance in the capacitive coupling than the other charge transfer signal lines.
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公开(公告)号:US12096140B2
公开(公告)日:2024-09-17
申请号:US17818962
申请日:2022-08-10
发明人: Denver Lloyd , Adi Xhakoni , Scott Johnson
IPC分类号: H04N25/59 , H01L27/146 , H04N25/531 , H04N25/583 , H04N25/585 , H04N25/62 , H04N25/75 , H04N25/778
CPC分类号: H04N25/59 , H01L27/14612 , H01L27/14643 , H04N25/531 , H04N25/583 , H04N25/585 , H04N25/62 , H04N25/75 , H04N25/778
摘要: In an embodiment a pixel arrangement includes a photodetector configured to accumulate charge carriers by converting electromagnetic radiation, a transfer transistor electrically coupled to the photodetector, a diffusion node electrically coupled to the transfer transistor, a reset transistor electrically coupled to the diffusion node and to a pixel supply voltage and a sample-and-hold stage including at least a first capacitor and a second capacitor, an input of the sample-and-hold stage being electrically coupled to the diffusion node via an amplifier, wherein the transfer transistor is configured to be pulsed to different voltage levels for transferring parts of the accumulated charge carriers to the diffusion node, wherein at least the second capacitor is configured to store a low conversion gain signal representing a first part of the accumulated charge carriers, and wherein the first capacitor is configured to store a high conversion gain signal representing a remaining part of the accumulated charge carriers.
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公开(公告)号:US20240292124A1
公开(公告)日:2024-08-29
申请号:US18437342
申请日:2024-02-09
发明人: KAN TAKAIWA , AIHIKO NUMATA
IPC分类号: H04N25/62 , H01L27/146 , H04N25/13 , H04N25/79
CPC分类号: H04N25/62 , H04N25/134 , H04N25/79 , H01L27/14645
摘要: An imaging device includes: a photoelectric conversion element including an avalanche photodiode; a generation unit configured to generate an image based on a signal acquired by the photoelectric conversion element; a first correction unit configured to correct the image based on first characteristic information on crosstalk between pixels of the photoelectric conversion element; and a second correction unit configured to perform pixel interpolation of the image based on second characteristic information for determining a crosstalk region to neighboring pixels of a specific pixel and the image.
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公开(公告)号:US12022215B2
公开(公告)日:2024-06-25
申请号:US18180708
申请日:2023-03-08
IPC分类号: H04N25/585 , H01L27/146 , H04N25/62 , H04N25/65 , H04N25/75 , H04N25/77 , H04N25/778
CPC分类号: H04N25/585 , H01L27/14614 , H01L27/14636 , H01L27/14643 , H04N25/62 , H04N25/65 , H04N25/75 , H04N25/77 , H04N25/778
摘要: An imaging device including: a first imaging cell including a first photoelectric converter that generates a first signal; and a second imaging cell including: a second photoelectric converter that generates a second signal; and a capacitor having a first and second terminal, the first terminal electrically coupled to second photoelectric converter. An area of the first photoelectric converter is greater than an area of the second photoelectric converter in a plan view, the first imaging cell has a first number of saturation charges, and the second imaging cell has a second number of saturation charges, the first number of saturation charges is greater than the second number of saturation charges, and the capacitor has capacitance that causes the second number of saturation charges of the second imaging cell to become greater than the first number of saturation charges of the first imaging cell.
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公开(公告)号:US11877076B2
公开(公告)日:2024-01-16
申请号:US17322923
申请日:2021-05-18
申请人: FUJIFILM Corporation
发明人: Shuji Ono
CPC分类号: H04N25/62 , G02B5/201 , G02B5/3025
摘要: Provided are an imaging device and an imaging method that can suppress a difference in appearance caused by a difference between the polarization directions of received light in a case in which different images are generated on the basis of light having different polarization directions, have flexibility in the design of the polarization direction of light forming different images, and can generate a plurality of images having a uniform amount of light. An imaging device (1) includes: an imaging optical system (10); a first polarizer that aligns a polarization direction of light transmitted through a first pupil region (E1) and a second pupil region (E2); a wave plate (14) that converts the light into circularly or elliptically polarized light; a second polarizer that transmits light in a second polarization direction different from the first polarization direction; a third polarizer that transmits light in a third polarization direction different from the first polarization direction and the second polarization direction; an imaging element (100) that has a plurality of pixel units receiving the light transmitted through the first pupil region and the second pupil region; and an image generation unit.
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公开(公告)号:US20240006549A1
公开(公告)日:2024-01-04
申请号:US18368705
申请日:2023-09-15
发明人: Yuhi YORIKADO , Atsushi TODA , Susumu INOUE
IPC分类号: H01L31/107 , G02B3/00 , H01L27/14 , H01L27/146 , H01L31/0224 , H01L31/0232 , H04N25/62 , H04N25/70 , H04N25/76 , H04N25/13
CPC分类号: H01L31/107 , G02B3/00 , H01L27/14 , H01L27/146 , H01L31/022408 , H01L31/02327 , H01L27/14643 , H04N25/62 , H04N25/70 , H04N25/76 , H04N25/134 , H01L27/14636 , H01L27/14603 , H01L27/14627 , H01L27/14629 , G02B3/0056
摘要: To improve detection efficiency in a solid-state imaging element including a SPAD in which an electrode and wiring are placed in a central portion. A solid-state imaging element includes a photodiode and a light collecting section. The photodiode includes a light receiving surface and an electrode placed on the light receiving surface, and that outputs an electrical signal in accordance with light incident on the light receiving surface in a state where a voltage exceeding a breakdown voltage is applied to the electrode. The light collecting section causes light from a subject to be collected in the light receiving surface other than a region where the electrode is placed.
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公开(公告)号:US11849081B2
公开(公告)日:2023-12-19
申请号:US17984491
申请日:2022-11-10
发明人: Ryoji Suzuki
IPC分类号: H04N25/62 , H01L27/146 , H04N23/10
CPC分类号: H04N25/62 , H01L27/1463 , H01L27/1464 , H01L27/14621 , H01L27/14625 , H01L27/14627 , H04N23/10
摘要: The present technique aims to provide a solid-state imaging device that reduces shading and color mixing between pixels. The present invention also provides a method of manufacturing the solid-state imaging device. The present technique further relates to a solid-state imaging device that enables provision of an electronic apparatus that uses the solid-state imaging device, a method of manufacturing the solid-state imaging device, and an electronic apparatus. The solid-state imaging device includes a substrate, pixels each including a photoelectric conversion unit formed in the substrate, and a color filter layer formed on the light incidence surface side of the substrate. The solid-state imaging device also includes a device isolating portion that is formed to divide the color filter layer and the substrate for the respective pixels, and has a lower refractive index than the refractive indexes of the color filter layer and the substrate.
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