Stray light baffle for internal drum scanner
    1.
    发明授权
    Stray light baffle for internal drum scanner 失效
    用于内部鼓式扫描仪的杂散光挡板

    公开(公告)号:US06459445B1

    公开(公告)日:2002-10-01

    申请号:US09721317

    申请日:2000-11-22

    IPC分类号: B41J2700

    摘要: An optical scanner assembly exposes an image on photosensitive media positioned on the internal surface of a drum platen. The assembly includes: a laser assembly for producing a laser beam representative of the image to be exposed on photosensitive media; a semi-circular flexible lens curved to the shape of the photosensitive media positioned on the internal surface of the drum platen, the lens having a plano-convex cylinder lens having a convex side facing the media; a laser beam scanner positioned between the laser assembly and the lens to scan the laser beam through the lens across the media in an image-wide pattern; and a baffle located between the scanner and the lens for extinguishing laser beam reflections from the convex side of the lens.

    摘要翻译: 光学扫描仪组件将感光介质上的图像曝光,定位在鼓压板的内表面上。 该组件包括:激光组件,用于产生代表要在光敏介质上曝光的图像的激光束; 一个半圆形柔性透镜,其弯曲成位于鼓压板的内表面上的感光介质的形状,该透镜具有一个凸面朝向介质的平凸圆柱透镜; 定位在激光组件和透镜之间的激光束扫描器,以跨越整个图像的方式扫描通过透镜的激光束; 以及位于扫描仪和透镜之间的挡板,用于从透镜的凸面熄灭激光束反射。