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    • 1. 发明授权
    • Focus detecting apparatus for microscope or camera
    • 用于显微镜或相机的聚焦检测装置
    • US4587416A
    • 1986-05-06
    • US508166
    • 1983-06-27
    • Koichi KudoHidehiro OgawaAtsushi Kawahara
    • Koichi KudoHidehiro OgawaAtsushi Kawahara
    • G03B13/36G02B7/38G03B3/10
    • G03B3/10
    • A focus detecting apparatus having an optical device movable to cause the light from an object to be imaged on a predetermined plane and comparing the different imaged conditions of the light from the object on the predetermined plane comprises a light intensity distribution detecting device for detecting the distribution of the intensity of light on the predetermined plane and putting out a detection signal indicative of the distribution of the intensity of light on the predetermined plane, a device for taking out a high frequency component from the detection signal, a device for rectifying the taken out high frequency component, a device for forming the envelope of the rectified high frequency component, a device for integrating the envelope at any time and putting out an integrated value, and a focus detecting device for detecting, on the basis of the integrated value of the envelope, the amount of movement necessary for the imaging optical device to cause the light from the object to be imaged on the predetermined plane.
    • 一种聚焦检测装置,其具有可移动以使来自物体的光在预定平面上成像的光学装置,并且与来自预定平面上的物体的光的不同成像条件进行比较,包括用于检测分布的光强度分布检测装置 在预定平面上的光的强度,并且将表示在预定平面上的光强度的分布的检测信号,从检测信号中取出高频分量的装置,用于整流取出的装置 高频分量的装置,用于形成整流高频分量的包络的装置,用于在任何时间对包络进行积分并提供积分值的装置,以及聚焦检测装置,用于根据 包络,成像光学装置使来自物体的光所需的移动量 以在预定平面上成像。
    • 7. 发明授权
    • Sheet carrying device and image forming apparatus
    • 纸张承载装置和图像形成装置
    • US08910939B2
    • 2014-12-16
    • US13780030
    • 2013-02-28
    • Makoto NakuraNaoto UedaKoichi KudoShingo Takai
    • Makoto NakuraNaoto UedaKoichi KudoShingo Takai
    • B65H5/02B41J13/00G03G15/00
    • B41J13/0009G03G15/1615G03G15/6529G03G15/6561G03G21/1647G03G2221/1657
    • A disclosed sheet carrying device includes a first carrying unit that includes a first rotary body, a first driving unit outputting a driving force at a first peripheral speed, a one-way clutch transmitting the driving force only in a sheet carrying direction, and a second rotary body driven by the first rotary body via the sheet; and a second carrying unit including a third rotary body rotating at a second peripheral speed being the first peripheral speed or more, a fourth rotary body carrying the sheet with the third rotary body, a second driving unit outputting a driving force for driving the fourth rotary body at a third peripheral speed being the second peripheral speed or more, and a torque limiter having a slip torque smaller than a sheet carrying torque and cutting off the driving force while the sheet is interposed between the third and fourth rotary bodies.
    • 公开的片材承载装置包括第一承载单元,其包括第一旋转体,以第一圆周速度输出驱动力的第一驱动单元,仅在片材传送方向上传递驱动力的单向离合器, 由第一旋转体经由片材驱动的旋转体; 以及第二承载单元,其包括以第一圆周速度以上的第二圆周速度旋转的第三旋转体,具有第三旋转体的第四旋转体,第二驱动单元,其输出用于驱动第四旋转体的驱动力 第三圆周速度为第二圆周速度以上的扭矩限制器,以及转矩限制器,其具有小于输送力矩的滑动转矩,并且在片材插入在第三和第四旋转体之间时切断驱动力。