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    Raster scanners
    2.
    发明授权
    Raster scanners 失效
    RASTER扫描仪

    公开(公告)号：EP0049165B1

    公开(公告)日：1984-06-27

    申请号：EP81304513.5

    申请日：1981-09-29

    申请人： XEROX CORPORATION

    发明人： Brueggemann, Harry P. ,  Grafton, David A. ,  Antos, Ronald L.

    IPC分类号： G02B27/17

    CPC分类号： G02B26/127 ,  B41J2/471 ,  G06K15/1219 ,  H04N1/036 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04777 ,  H04N2201/04794

    摘要： A raster scanner with laser for generating a scanning beam and compact folded optical system for transmitting the beam to the object to be scanned. The optical system includes a first mirror for guiding the laser beam forward along a downwardly inclined slope to the modulator, a second mirror below the modulator for intercepting the beam from the modulator and folding the intercepted beam to guide the beam backwards along a horizontal plane to a third mirror which folds the beam and guides the beam forward along an upwardly inclined slope against the mirrored facets of a rotating polygon, the polygon scanning the beam through a preset scan arc and returning the beam via a focusing lens to the third mirror, the third mirror folding the scan beam and guiding the scan beam forward, and a fourth mirror for intercepting the scan beam and guiding the beam to the object to be scanned.

    Multiple beam raster output scanner optical system having telecentric chief exit rays
    3.
    发明公开
    Multiple beam raster output scanner optical system having telecentric chief exit rays 失效
    Optisches Mehrfachstrahlabtastsystem mit telezentrischen Hauptaustrittstrahlen。

    公开(公告)号：EP0661573A1

    公开(公告)日：1995-07-05

    申请号：EP94309698.2

    申请日：1994-12-22

    申请人： XEROX CORPORATION

    发明人： Fisli, Tibor ,  Grafton, David A.

    IPC分类号： G02B26/10 ,  G02B13/22

    CPC分类号： G02B26/123 ,  G02B13/22

    摘要： A system for eliminating differential scan line bow from raster output scanners aligns at least the chief exit ray (66, 67) of each scanning light beam (61, 62) with the system axis (65). By aligning the chief exit rays to be essentially parallel to the system axis, the overall bow is reduced, and the bow of different scan lines (63, 64) is essentially identical. Thus, bowed scan lines from different stations in a multi-station printer, or from different passes in a multi-pass printer are generally identical and aligned.

    摘要翻译： 用于从光栅输出扫描器消除差分扫描线弓的系统至少将每个扫描光束（61,62）的主出射光线（66,67）与系统轴线（65）对准。 通过将主出口光线对准于基本上平行于系统轴线的方向，整个弓形被减小，并且不同扫描线（63,64）的弓基本相同。 因此，来自多工位打印机中的不同站的弯曲扫描线或多路打印机中的不同路径的弓形扫描线通常是相同和对齐的。