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    • 74. 发明授权
    • Light scanning device and image forming device
    • 光扫描装置和成像装置
    • US08665501B2
    • 2014-03-04
    • US13467476
    • 2012-05-09
    • Takeshi ShimizuShuichi Wakabayashi
    • Takeshi ShimizuShuichi Wakabayashi
    • H04N1/04
    • G02B26/101H04N2201/04713H04N2201/04739
    • A light scanning device includes a movable section having a light reflecting section adapted to reflect light, oscillating around an oscillation axis, and having a variable magnitude of a maximum deflection angle of the oscillating, and a detection section adapted to detect the maximum deflection angle of the movable section, and the detection section includes a light source adapted to emit light to the light reflecting section, a light receiving section adapted to receive reflected light, which is the light emitted from the light source and then reflected by the light reflecting section, and a displacement driving section adapted to change a position of the light source in accordance with the maximum deflection angle of the movable section.
    • 一种光扫描装置,包括具有光反射部分的可动部分,所述光反射部分适于反射围绕振荡轴摆动的光,并且具有可变幅度的振荡的最大偏转角;以及检测部分,其适于检测最大偏转角 所述可动部和所述检测部包括适于向所述光反射部发射光的光源,适于接收作为从所述光源发射的光然后被所述光反射部反射的反射光的受光部, 以及位移驱动部,其适于根据所述可动部的最大偏转角来改变所述光源的位置。
    • 78. 发明授权
    • Optical scanning unit and color image forming apparatus using the same
    • 光学扫描单元和使用其的彩色图像形成装置
    • US08248676B2
    • 2012-08-21
    • US12582317
    • 2009-10-20
    • Yuuta Naito
    • Yuuta Naito
    • H04N1/04
    • H04N1/053G03G15/011H04N2201/0082H04N2201/04713H04N2201/04732H04N2201/04744
    • A color image forming apparatus obtaining a high quality color image with little write start misregistration among optical scanning devices, includes a plurality of optical scanning devices respectively including an incident optical unit guiding a light beam from a light source unit to a deflection unit, an imaging optical system allowing the light beam deflectively scanned by the deflection unit to be focused on a scanned surface, and an optical system for synchronous detection for adjusting image start timing on the scanned surface by using a part of the light beam deflectively scanned by the deflection unit. A ratio of a focal length of the optical system for synchronous detection to a focal length of the imaging optical system is set appropriately in a main scanning section of the plurality of optical scanning devices for obtaining a black color image and color images other than the black color image.
    • 一种获得高质量彩色图像的彩色图像形成装置,其中光学扫描装置之间几乎没有写入开始重合失调,包括分别包括将来自光源单元的光束引导到偏转单元的入射光学单元的多个光学扫描装置,成像 允许由偏转单元偏转扫描的光束被聚焦在扫描表面上的光学系统,以及用于同步检测的光学系统,用于通过使用由偏转单元偏转扫描的光束的一部分来调整扫描表面上的图像开始定时 。 在多个光学扫描装置的主扫描部分中适当地设置用于同步检测的光学系统的焦距与成像光学系统的焦距的比率,用于获得黑色图像和除了黑色图像之外的彩色图像 彩色图像。
    • 80. 发明授权
    • Optical beam scanning apparatus, optical beam scanning method, image forming apparatus and image forming method
    • 光束扫描装置,光束扫描方法,图像形成装置和图像形成方法
    • US08130434B2
    • 2012-03-06
    • US12207455
    • 2008-09-09
    • Takashi Shiraishi
    • Takashi Shiraishi
    • G02B26/08
    • G02B26/127G02B26/124G02B26/125G06K15/129H04N1/1135H04N1/12H04N2201/0082H04N2201/04713H04N2201/04729H04N2201/04732H04N2201/04744
    • An optical beam scanning apparatus according to the present invention includes a pre-deflection optical system, a post-deflection optical system at least including one or plural first optical elements, plural second optical elements, a first reflection mirror which is provided in optical path between the first optical element and one of the second optical elements and reflects, on a most upstream side of the optical paths, a luminous flux on a most downstream side or a most upstream side in the sub-scanning direction among the plural luminous fluxes, and a second reflection mirror which is provided in optical path between the first optical element and another second optical element and reflects, on an optical path second from a most downstream side of the optical paths, the luminous flux on the most downstream side or the most upstream side in the sub-scanning direction among the plural luminous fluxes.
    • 根据本发明的光束扫描装置包括预偏转光学系统,至少包括一个或多个第一光学元件的偏转后光学系统,多个第二光学元件,设置在第二反射镜之间的光路中的第一反射镜, 所述第一光学元件和所述第二光学元件中的一个,并且在所述光路的最上游侧反射所述多个光束中的副扫描方向的最下游侧或最上游侧的光束,以及 第二反射镜,设置在第一光学元件和另一个第二光学元件之间的光路中,并且在光路的最下游侧的光路上反射最下游侧或最上游的光通量 在多个光束中的副扫描方向上。