OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING THE SAME

    公开(公告)号:US20230236388A1

    公开(公告)日:2023-07-27

    申请号:US18156532

    申请日:2023-01-19

    Inventor: Shingo YOSHIDA

    CPC classification number: G02B7/182 G02B26/105 G02B26/121 H04N1/02409

    Abstract: An optical scanner is provided with a light source, a deflector, an optical element, an imaging lens, a fixing structure, and a housing. The optical element has a reflecting surface. The fixing structure has a first support wall, a second support wall and a biasing member. The first support wall has a support projection with a tip part protruding along a thickness direction toward a rear surface and abutting on the rear surface, and an inclined surface extending from a tip part to a side opposite to the second support wall. A first angle between a first straight line extending in the perpendicular direction orthogonal to a bottom surface of the housing and a surface of the optical element is smaller than a second angle between the first straight line and the inclined surface. The second angle is less than 90 degrees.

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS THEREWITH
    12.
    发明申请
    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS THEREWITH 有权
    光学扫描装置和图像形成装置

    公开(公告)号:US20140354756A1

    公开(公告)日:2014-12-04

    申请号:US14284002

    申请日:2014-05-21

    CPC classification number: B41J2/47 B41J2/473 G02B26/127

    Abstract: An optical scanning device has a light deflector deflecting a light beam from a light source, a synchronization detection sensor determining timing of starting scanning in main scanning direction based on timing of detecting the light beam scanned in main scanning direction by the light deflector, and a pre-sensor imaging optical system imaging the light beam reflected from the light deflector on the synchronization detection sensor. The pre-sensor imaging optical system moves the imaging position of the light beam on the synchronization detection sensor in a direction making the timing of detecting the light beam earlier or later according to whether variation in temperature causes the magnification of the scanning optical system in main scanning direction to increase or decrease respectively.

    Abstract translation: 光学扫描装置具有使来自光源的光束偏转的光偏转器,基于通过光偏转器检测沿主扫描方向扫描的光束的定时来确定在主扫描方向上开始扫描的定时的同步检测传感器,以及 预传感器成像光学系统对来自同步检测传感器上的光偏转器的光束进行成像。 预传感器成像光学系统将光束的成像位置沿同步检测传感器的方向移动,根据温度的变化是否使主要的扫描光学系统的放大倍数成为检测光束的时间的方向 扫描方向分别增减。

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