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    • 9. 发明申请
    • IMAGING APPARATUS FOR READING INFORMATION
    • 成像设备阅读信息
    • US20100079825A1
    • 2010-04-01
    • US12568117
    • 2009-09-28
    • Kozo YamazakiIsao Iwaguchi
    • Kozo YamazakiIsao Iwaguchi
    • H04N1/04
    • G06K9/209G02B27/46G06K9/58H04N5/2253
    • A position Z of an image sensor is moved to an initial position A (image forming position) in a Z axis direction. An exposing operation is performed at a position A, and it is determined whether or not an exposing time counted by a timer has reached ta. If the exposing time has reached ta, an image sensor 27 is moved to a position B. The exposing operation is performed at the position, and it is determined whether or not a total exposing time has reached ta+tb. If the total exposing time t has reached ta+tb, the image sensor is moved to a position C, and the exposing operation is performed at the position. Thus, the output distribution of the image sensor can be assigned a desired low pass filter characteristic.
    • 图像传感器的位置Z沿Z轴方向移动到初始位置A(图像形成位置)。 在位置A执行曝光操作,并且确定由定时器计数的曝光时间是否达到ta。 如果曝光时间达到ta,则图像传感器27移动到位置B.在该位置进行曝光操作,并且确定总曝光时间是否达到ta + tb。 如果总曝光时间t达到ta + tb,则图像传感器被移动到位置C,并且在该位置执行曝光操作。 因此,图像传感器的输出分布可以被赋予期望的低通滤波器特性。