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    • 45. 发明授权
    • Exposing device and image forming apparatus
    • 曝光装置和图像形成装置
    • US07898562B2
    • 2011-03-01
    • US12204130
    • 2008-09-04
    • Yoshiyuki MatsuokaIsao EbisawaKenji Kobayashi
    • Yoshiyuki MatsuokaIsao EbisawaKenji Kobayashi
    • B41J2/47
    • G03G15/0409B41J2/451G02B19/0014G02B19/0057G02B19/0061G02B27/0961G03G15/04072G03G15/043G03G15/0435G03G2215/0409
    • An exposing device which radiates light on a photoconductor drum which rotates, thereby executing exposure, includes a light-emitting element unit including light-emitting element having an emission area which emits light that is generated, the emission area having a rectangular shape with a long side along a direction perpendicular to a rotational direction of the photoconductor drum, and a short side along the rotational direction, a lens unit which focuses the light, which is emitted from the emission area, on a peripheral surface of the photoconductor drum, thereby executing exposure, and forming on the peripheral surface a beam spot, and a driving circuit which causes the light-emitting element to emit light, thereby making a width of the shape of the beam spot in a direction along the rotational direction close to a width of the beam spot in a direction perpendicular to the rotational direction.
    • 一种曝光装置,其在旋转的感光鼓上照射光,从而进行曝光,包括发光元件单元,其包括具有发射所产生的光的发射区域的发光元件,发光区域具有长的矩形形状 一侧沿着与感光鼓的旋转方向垂直的方向和沿着旋转方向的短边;透镜单元,其将从发光区域发射的光聚焦在感光鼓的外周面上,由此执行 曝光和在外围表面上形成光斑,以及使发光元件发光的驱动电路,从而使光束的形状沿着旋转方向的方向的宽度接近宽度 光束在与旋转方向垂直的方向上。