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    • 18. 发明申请
    • OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    • 光学扫描装置和图像形成装置
    • US20130076851A1
    • 2013-03-28
    • US13624182
    • 2012-09-21
    • Naoto WATANABEToshiaki TokitaKohji SakaiNobuaki Kubo
    • Naoto WATANABEToshiaki TokitaKohji SakaiNobuaki Kubo
    • B41J2/435G02B26/08
    • G02B26/123B41J2/473G02B27/0018
    • An optical scanning device scanning scan target surfaces in a first direction with light includes: a light source emitting first and second light beams corresponding to two of the scan target surfaces; an optical deflector including a reflection surface on which the emitted first and second light beams are obliquely incident while being separated from each other in a second direction perpendicular to the first direction, and deflecting the first and second light beams; a scanning lens disposed on respective optical paths of the deflected first and second light beams; and a branching optical element transmitting therethrough most of the first light beam transmitted through the scanning lens, and reflecting most of the second light beam transmitted through the scanning lens. The deflected first and second light beams intersect between the optical deflector and the branching optical element, when projected on a plane perpendicular to the first direction.
    • 用光扫描第一方向的扫描目标表面的光扫描装置包括:发射对应于两个扫描目标表面的第一和第二光束的光源; 光偏转器,其包括反射面,发射的第一光束和第二光束在垂直于第一方向的第二方向上彼此分离并倾斜入射,并且偏转第一和第二光束; 设置在偏转的第一和第二光束的相应光路上的扫描透镜; 以及分支光学元件,透射通过扫描透镜的第一光束的大部分,并且反射透过扫描透镜的大部分第二光束。 当投影在垂直于第一方向的平面上时,偏转的第一和第二光束在光学偏转器和分支光学元件之间相交。