OPTICAL SCANNING DEVICE, OPTICAL WRITING DEVICE, AND IMAGE FORMING APPARATUS
    1.
    发明申请
    OPTICAL SCANNING DEVICE, OPTICAL WRITING DEVICE, AND IMAGE FORMING APPARATUS 有权
    光学扫描装置,光学写入装置和图像形成装置

    公开(公告)号:US20110228368A1

    公开(公告)日:2011-09-22

    申请号:US13152989

    申请日:2011-06-03

    IPC分类号: G02B26/10

    摘要: An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.

    摘要翻译: 光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。 第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。 衍射面包括衍射部分和折射部分。 衍射部分的功率和折射部分的功率彼此抵消。

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    8.
    发明申请
    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
    光学扫描装置和图像形成装置

    公开(公告)号:US20110316959A1

    公开(公告)日:2011-12-29

    申请号:US13169942

    申请日:2011-06-27

    IPC分类号: B41J2/435 G02B26/08

    摘要: An optical scanning device, arranged on one side of at least two to-be-scanned members in a second direction, and the two to-be-scanned members being arranged in a first direction perpendicular to the second, includes: an illuminating system that emits beams including a first beam and a second beam whose polarization directions are different from each other; an optical deflector that deflects the beams; and a scanning optical system that includes a polarization separation element that transmits one of the first and second beams and reflects the other; a first mirror group including reflecting mirrors for guiding the first beam to a to-be-scanned member; and a second mirror group including reflecting mirrors for guiding the second beam to a to-be-scanned member. Last-stage reflecting mirrors in the first and second mirror groups are arranged on one side of the beams deflected by the optical deflector in the second direction.

    摘要翻译: 一种光学扫描装置,其布置在沿第二方向的至少两个待扫描构件的一侧上,并且两个被扫描构件沿垂直于第二方向的第一方向布置,包括:照明系统, 发射包括偏振方向彼此不同的第一光束和第二光束的光束; 偏转光束的光学偏转器; 以及扫描光学系统,其包括透射第一和第二光束中的一个并反射另一光束的偏振分离元件; 第一反射镜组,包括用于将第一光束引导到被扫描部件的反射镜; 以及包括用于将第二光束引导到被扫描部件的反射镜的第二反射镜组。 第一和第二反射镜组中的后级反射镜布置在由光学偏转器沿第二方向偏转的光束的一侧上。