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    • 6. 发明申请
    • IMAGE SENSOR AND ELECTROMAGNETIC RADIATION IMAGING DEVICE
    • 图像传感器和电磁辐射成像装置
    • US20090057536A1
    • 2009-03-05
    • US12199057
    • 2008-08-27
    • Yutaka HIROSE
    • Yutaka HIROSE
    • H01L27/00G01J1/20
    • G01J1/4228G01J1/04G01J1/0429G01J1/1626G01J1/46G01N21/3581H01L27/14641
    • To provide a small-size image sensor and electromagnetic radiation imaging device which can obtain a good image without relying on the condition of an object, the image sensor including a plurality of pixel units arranged two-dimensionally, wherein each of the plurality of pixel units includes: a first photodiode and a second photodiode; a readout circuit which reads a signal generated by the first photodiode and a signal generated by the second photodiode, and outputs the read signals, the readout circuit being connected to the first photodiode and the second photodiode; and a difference circuit which outputs a difference signal corresponding to a difference between the signal read from the first photodiode and the signal read from the second photodiode, the difference circuit being connected to the readout circuit.
    • 为了提供能够不依赖于物体的条件而获得良好图像的小尺寸图像传感器和电磁辐射成像装置,所述图像传感器包括二维排列的多个像素单元,其中,所述多个像素单元 包括:第一光电二极管和第二光电二极管; 读出由第一光电二极管产生的信号和由第二光电二极管产生的信号的读出电路,并输出读出的信号,读出电路连接到第一光电二极管和第二光电二极管; 以及差分电路,其输出与从第一光电二极管读取的信号和从第二光电二极管读取的信号之间的差对应的差分信号,差分电路连接到读出电路。