Document photography system
    1.
    发明授权
    Document photography system 失效
    文件摄影系统

    公开(公告)号:US3885871A

    公开(公告)日:1975-05-27

    申请号:US46032174

    申请日:1974-04-12

    Applicant: IBM

    CPC classification number: G03B27/50 G03B27/528 G03C5/04

    Abstract: A document photography system in which the front and rear sides of serially fed continuously moving documents are imaged on an image receptor surface, such as photographic film, which is periodically advanced. An improved optical system utilizing first and second sets of fixed mirrors and fixed common reflecting surfaces provide front and rear images of the document in which the long dimensions of the document images are perpendicular to the direction of the film motion, and the front and rear images of a given document are located end-to-end transversely of the film surface. The width of incoming documents is sensed and the film motion is incremented by amounts proportional to the indicated width of the documents.

    Abstract translation: 一种文件摄影系统,其中串行供给的连续移动的文件的前侧和后侧成像在周期性地前进的图像接收器表面上,例如摄影胶片。 利用第一组和第二组固定镜和固定公共反射表面的改进的光学系统提供文件的前后图像,其中文档图像的长尺寸垂直于胶片运动的方向,并且前后图像 给定文档的横向于胶片表面的端对端。 检测进入文件的宽度,并且胶卷运动增加与文档的指定宽度成比例的数量。

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