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    Photo detection device
    1.
    发明授权
    Photo detection device 有权
    照片检测装置

    公开(公告)号：US07916199B2

    公开(公告)日：2011-03-29

    申请号：US12278141

    申请日：2007-01-31

    申请人： Keiichiro Kagawa ,  Jun Ohta ,  Yugo Nose ,  Atsushi Wada ,  Hajime Takashima

    发明人： Keiichiro Kagawa ,  Jun Ohta ,  Yugo Nose ,  Atsushi Wada ,  Hajime Takashima

    IPC分类号： H04N3/14 ,  H04N5/335

    CPC分类号： G01J1/46 ,  H04N5/353 ,  H04N5/355 ,  H04N5/3559 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/37452

    摘要： A pixel includes a photodiode, an overflow circuit, a first sensing circuit, and a second sensing circuit. The first sensing circuit charges and discharges a cathode capacitance by a photocurrent flowing through a photodiode, and amplifies an obtained voltage by a source follower amplifier so as to be outputted to a data line. The second sensing circuit charges and discharged the cathode capacitance by the photocurrent flowing through the photodiode, and outputs electric charge stored in the cathode capacitance via the data line. A pixel circuit is configured so that a first mode in which the first sensing circuit becomes active and a second mode in which the second sensing circuit becomes active can be switched. The first mode and the second mode are switched according to an amount of light received by the photodiode included in each pixel circuit. Gain is controlled according to the amount of light received, in the first mode, and the storage time is controlled in the second mode.

    摘要翻译： 像素包括光电二极管，溢出电路，第一感测电路和第二感测电路。 第一感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电，并且通过源极跟随器放大器放大所获得的电压，以将其输出到数据线。 第二感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电，并通过数据线输出存储在阴极电容中的电荷。 像素电路被配置为使得第一感测电路变为活动的第一模式和第二感测电路变为活动的第二模式被切换。 第一模式和第二模式根据由每个像素电路中包括的光电二极管接收的光量进行切换。 在第一模式下，根据所接收的光量来控制增益，并且在第二模式中控制存储时间。

    PHOTO DETECTION DEVICE
    2.
    发明申请
    PHOTO DETECTION DEVICE 有权
    照片检测装置

    公开(公告)号：US20090086071A1

    公开(公告)日：2009-04-02

    申请号：US12278141

    申请日：2007-01-31

    申请人： Keiichiro Kagawa ,  Jun Ohta ,  Yugo Nose ,  Atsushi Wada ,  Hajime Takashima

    发明人： Keiichiro Kagawa ,  Jun Ohta ,  Yugo Nose ,  Atsushi Wada ,  Hajime Takashima

    IPC分类号： H04N5/335

    CPC分类号： G01J1/46 ,  H04N5/353 ,  H04N5/355 ,  H04N5/3559 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/37452

    摘要： A pixel includes a photodiode, an overflow circuit, a first sensing circuit, and a second sensing circuit. The first sensing circuit charges and discharges a cathode capacitance by a photocurrent flowing through a photodiode, and amplifies an obtained voltage by a source follower amplifier so as to be outputted to a data line. The second sensing circuit charges and discharged the cathode capacitance by the photocurrent flowing through the photodiode, and outputs electric charge stored in the cathode capacitance via the data line. A pixel circuit is configured so that a first mode in which the first sensing circuit becomes active and a second mode in which the second sensing circuit becomes active can be switched. The first mode and the second mode are switched according to an amount of light received by the photodiode included in each pixel circuit. Gain is controlled according to the amount of light received, in the first mode, and the storage time is controlled in the second mode.

    摘要翻译： 像素包括光电二极管，溢出电路，第一感测电路和第二感测电路。 第一感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电，并且通过源极跟随器放大器放大所获得的电压，以将其输出到数据线。 第二感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电，并通过数据线输出存储在阴极电容中的电荷。 像素电路被配置为使得第一感测电路变为活动的第一模式和第二感测电路变为活动的第二模式被切换。 第一模式和第二模式根据由每个像素电路中包括的光电二极管接收的光量进行切换。 在第一模式下，根据所接收的光量来控制增益，并且在第二模式中控制存储时间。

    IMAGE SENSOR
    3.
    发明申请
    IMAGE SENSOR 审中-公开
    图像传感器

    公开(公告)号：US20100006910A1

    公开(公告)日：2010-01-14

    申请号：US12500443

    申请日：2009-07-09

    申请人： Kuniyuki Tani ,  Yugo Nose

    发明人： Kuniyuki Tani ,  Yugo Nose

    IPC分类号： H01L31/0216 ,  H01L31/112

    CPC分类号： H01L27/14623 ,  H01L27/14609 ,  H01L27/14643

    摘要： An image sensor includes a photoelectric conversion portion generating signal charges, a voltage conversion portion for converting the signal charges to a voltage, a charge increasing portion for increasing the number of the signal charges stored in the photoelectric conversion portion, a first light shielding film formed to cover at least one part of the charge increasing portion and a second light shielding film provided separately from the first light shielding film and formed to cover the voltage conversion portion.

    摘要翻译： 图像传感器包括产生信号电荷的光电转换部分，用于将信号电荷转换成电压的电压转换部分，用于增加存储在光电转换部分中的信号电荷数量的电荷增加部分，形成第一光屏蔽膜 以覆盖电荷增加部分的至少一部分和与第一遮光膜分开设置并形成为覆盖电压转换部分的第二遮光膜。