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    • 61. 发明授权
    • Voltage comparator
    • 电压比较器
    • US5140186A
    • 1992-08-18
    • US631649
    • 1990-12-21
    • Masao ItoShiro Hosotani
    • Masao ItoShiro Hosotani
    • H03K5/08H03K5/24
    • H03K5/249
    • A voltage comparator includes a coupling capacitor which receives at one terminal thereof two signals applied in a complementary fashion, an inverting amplifier having an input coupled to the other terminal of the coupling capacitor and having an output, and switch means coupled between the input and output of the inverting amplifier so as to be in parallel with the inverting amplifier. The duration of an auto-zeroing interval during which the switch means is conductive is maintained constant regardless of the period of the ON-OFF operation of the switch means.
    • 电压比较器包括耦合电容器,其在一个端子处接收以互补方式施加的两个信号,反相放大器具有耦合到耦合电容器的另一端并具有输出的输入,以及耦合在输入和输出之间的开关装置 的反相放大器,以便与反相放大器并联。 开关装置导通的自动归零间隔的持续时间保持恒定,而与开关装置的ON-OFF操作的周期无关。
    • 65. 发明授权
    • Detection device and image forming apparatus for reducing a cavity effect
    • 用于减小空腔效应的检测装置和图像形成装置
    • US08993990B2
    • 2015-03-31
    • US13093416
    • 2011-04-25
    • Masao ItoIzumi Iwasa
    • Masao ItoIzumi Iwasa
    • G01N21/86H01J3/14G03G15/04
    • G02B1/116G03G15/04036
    • A detection device includes: a detection member that includes an emission member emitting a beam toward a direction of a transportation path and a beam receiving member receiving a reflected beam reflected from a medium; a transmissive member that is provided to allow a regular reflected beam of the beam reflected from the medium to be obliquely incident thereto, and through which the beam emitted from the emission member is transmitted; and a multiple-layered antireflective film that is provided on the transmissive member, the antireflective film being formed such that a maximum value of reflectivity of a first incident beam incident at the same angle as an incident angle of the regular reflected beam becomes smaller than a maximum value of reflectivity of a second incident beam incident in the direction perpendicular to the transmissive member within a visible light wavelength range.
    • 一种检测装置,包括:检测部件,其包括朝向传送路径的方向发射光束的发射部件和接收从介质反射的反射光束的光束接收部件; 透射构件,被设置成允许从介质反射的光束的规则反射光束倾斜地入射到其上,并且从发射构件发射的光束通过该透射构件被透射; 以及设置在所述透射构件上的多层防反射膜,所述防反射膜形成为以与所述正反射光束的入射角成相同角度入射的第一入射光的反射率的最大值变得小于 在可见光波长范围内在垂直于透射构件的方向入射的第二入射光的反射率的最大值。