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    • 8. 发明申请
    • OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    • 光学扫描装置和图像形成装置
    • US20110310211A1
    • 2011-12-22
    • US13160578
    • 2011-06-15
    • Kenzo OHKUBONobuhiro ShiraiTakasumi Wada
    • Kenzo OHKUBONobuhiro ShiraiTakasumi Wada
    • B41J2/435G02B26/08
    • G02B26/123G03G15/04072G03G15/0435G03G2215/0404
    • An optical scanning device includes an enclosure having a plurality of windows covered with transparent members. The enclosure houses a plurality of light sources, a scanning portion, optical elements and a light amount attenuation portion. The scanning portion deflects each of a plurality of light beams emitted from a plurality of light sources at a constant angular speed in a main scanning direction. The optical elements constitute respective light paths from the scanning portion to the windows for the plurality of light beams, respectively. The light amount attenuation portion attenuates light amount in a light path of a first light source among the plurality of light sources in a downstream side of the position where a light beam emitted from a second light source enters as stray light. The drive portion drives the first light source so as to compensate for light amount attenuated by the light amount attenuation portion.
    • 光学扫描装置包括具有被透明构件覆盖的多个窗口的外壳。 外壳容纳多个光源,扫描部分,光学元件和光量衰减部分。 扫描部分以主扫描方向以恒定角速度偏转从多个光源发射的多个光束中的每一个。 光学元件分别构成从多个光束的扫描部到窗的各自的光路。 光量衰减部分使从第二光源发射的光束进入杂散光的位置的下游侧的多个光源中的第一光源的光路中的光量衰减。 驱动部分驱动第一光源以补偿由光量衰减部分衰减的光量。
    • 9. 发明授权
    • Optical scanning device and image forming apparatus
    • 光学扫描装置和图像形成装置
    • US08525863B2
    • 2013-09-03
    • US13160578
    • 2011-06-15
    • Kenzo OhkuboNobuhiro ShiraiTakasumi Wada
    • Kenzo OhkuboNobuhiro ShiraiTakasumi Wada
    • B41J15/14B41J27/00
    • G02B26/123G03G15/04072G03G15/0435G03G2215/0404
    • An optical scanning device includes an enclosure having a plurality of windows covered with transparent members. The enclosure houses a plurality of light sources, a scanning portion, optical elements and a light amount attenuation portion. The scanning portion deflects each of a plurality of light beams emitted from a plurality of light sources at a constant angular speed in a main scanning direction. The optical elements constitute respective light paths from the scanning portion to the windows for the plurality of light beams, respectively. The light amount attenuation portion attenuates light amount in a light path of a first light source among the plurality of light sources in a downstream side of the position where a light beam emitted from a second light source enters as stray light. The drive portion drives the first light source so as to compensate for light amount attenuated by the light amount attenuation portion.
    • 光学扫描装置包括具有被透明构件覆盖的多个窗口的外壳。 外壳容纳多个光源,扫描部分,光学元件和光量衰减部分。 扫描部分以主扫描方向以恒定角速度偏转从多个光源发射的多个光束中的每一个。 光学元件分别构成从多个光束的扫描部到窗的各自的光路。 光量衰减部分使从第二光源发射的光束进入杂散光的位置的下游侧的多个光源中的第一光源的光路中的光量衰减。 驱动部分驱动第一光源以补偿由光量衰减部分衰减的光量。