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133 条记录 (耗时 0.011 秒)

    Setting mechanism for an optical system
    69.
    发明授权
    Setting mechanism for an optical system 失效
    光学系统的设置机制

    公开(公告)号：US4307959A

    公开(公告)日：1981-12-29

    申请号：US145313

    申请日：1980-04-29

    申请人： Willem P. H. A. Janssen

    发明人： Willem P. H. A. Janssen

    IPC分类号： G03B27/34 ,  G02B7/00 ,  G03B27/36 ,  G03B27/50 ,  G03B27/52 ,  G03G15/04 ,  G03G15/041 ,  G03B27/40 ,  G03B27/70

    CPC分类号： G03G15/041 ,  G03B27/36

    摘要： A mechanism for setting an optical system accurately to any of various reproduction ratios comprises at least one carrier which has an optical element or elements mounted thereon and is movable along an optical axis to any selected one of several set positions corresponding to desired reproduction ratios by a buffered four-position pneumatic cylinder having oppositely extending piston rods connected respectively with the carrier and a frame part. The four-position cylinder can be adjusted to set the carrier exactly at the position required for a desired reproduction ratio without affecting the settings that provide other ratios. The carrier may be an objective carrier carrying an objective holder that can be moved relative to it in a plane perpendicular to the optical axis and is so moved as the carrier is moved between its set positions; and a movable part of the objective is adjusted at the same time. A setting mechanism comprising both an objective carrier and a related mirror carrier, each movable along the optical axis by such a four-position pneumatic cylinder to any of several set positions, is advantageous for use in copiers for producing large copies of large originals.

    摘要翻译： 用于将光学系统准确地设置为各种再现比率中的任何一种的机构包括至少一个载体，其具有安装在其上的光学元件或元件，并且可以沿着光轴移动到对应于期望再现比率的几个设置位置中的任何选定的一个 缓冲四位气动缸具有相对延伸的活塞杆，分别与载体和框架部分相连。 可以调节四位圆柱体以将载体精确地设置在所需再现比例所需的位置，而不影响提供其它比率的设置。 载体可以是携带目标载体的物镜载体，其可以在垂直于光轴的平面中相对于其移动，并且当载体在其设定位置之间移动时被移动; 同时调整物镜的可动部分。 包括目标载体和相关反射镜载体的设置机构，每个都可以通过这样的四位气动缸沿光轴移动到几个设定位置中的任何一个，这对于用于制造大型原稿的复印件的复印机是有利的。

    Multiple reduction indicators for continuously variable reduction copier machines
    70.
    发明授权
    Multiple reduction indicators for continuously variable reduction copier machines 失效
    用于连续可变缩减复印机的多重缩小指示器

    公开(公告)号：US4105327A

    公开(公告)日：1978-08-08

    申请号：US749137

    申请日：1976-12-09

    申请人： David K. Gibson ,  Myrl J. Miller ,  Spencer A. Snell

    发明人： David K. Gibson ,  Myrl J. Miller ,  Spencer A. Snell

    IPC分类号： G03B27/62 ,  G03B27/32 ,  G03B27/34 ,  G03G15/04 ,  G03G15/041 ,  G03G15/22 ,  G03G21/00 ,  H04N1/04 ,  G03B27/36 ,  G03B27/38

    CPC分类号： G03G15/041

    摘要： A continuously variable reduction optical system for document copiers wherein a plurality of sets of reduction indicators are provided, each set corresponding to a particular size copy paper. Each set of indicators can be moved by the operator to frame the document to be copied and simultaneously the reduction optical system is set to provide proper adjustment for all system parameters. The indicators are continuously viewable by the operator. An embodiment is disclosed wherein each indicator is positioned so that reduction ratio is maintained whatever the copy paper size.

    摘要翻译： 一种用于文件复印机的连续可变缩小光学系统，其中提供多组缩小指示器，每组缩小指示器对应于特定尺寸的复印纸。 每组指示器可由操作员移动以对要复制的文档进行构图，同时还原光学系统设置为对所有系统参数进行适当的调整。 指标由操作员持续查看。 公开了一种实施例，其中每个指示器被定位成使得不管复印纸尺寸如何都保持缩小率​​。