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    • 7. 发明申请
    • HIGH DUTY CYCLE SCANNER FOR LASER PRINTER
    • 激光打印机用高周期扫描仪
    • WO1998047037A1
    • 1998-10-22
    • PCT/IL1997000126
    • 1997-04-17
    • INDIGO N.V.PLOTKIN, MichaelLIVNE, HaimAMIR, GidiBREEN, CraigMALOBANI, Itzhak
    • INDIGO N.V.
    • G02B26/12
    • G02B5/09G02B26/123
    • A scanner for scanning a beam across a surface, such as a photosensitive surface or a document, the scanner comprising: a plurality of multi-faceted polygon disks, mounted for common rotation on an axis; a plurality of data modulated beams, wherein one of said beams is configured to impinge on the facets of one of the disks and be reflected therefrom toward the surface. The plurality of polygon disks (26) are mounted with an angular shift between them and the beams from different polygon disks can be overlapped by a polarizer (42) on the surface after passing through an f-theta lens system (43). The beams scan the surface alternately, thereby increasing the duty cycle and scanning speed. Means for differentially varying the focussing in the scan direction (53, 55) and offset at the beams in the cross-scan direction (49, 51) are also provided. A polarising beamsplitter (39) may be used to produce the plurality of beams.
    • 一种扫描仪,用于横扫诸如感光表面或文件的表面的扫描器,所述扫描仪包括:多个多面多边形盘,安装成用于在轴上共同旋转; 多个数据调制光束,其中所述光束中的一个被配置为撞击所述光盘中的一个的小平面并从其向所述表面反射。 多个多边形盘(26)以它们之间的角位移安装,并且来自不同多边形盘的光束可以在穿过f-θ透镜系统(43)之后的表面上被偏振器(42)重叠。 光束交替扫描表面,从而增加占空比和扫描速度。 还提供用于在扫描方向(53,55)上不同地改变聚焦并且在横扫描方向(49,51)处在光束处的偏移的装置。 偏振分束器(39)可用于产生多个光束。