Recording a phase hologram having reduced intermodulation distortion
    2.
    发明授权
    Recording a phase hologram having reduced intermodulation distortion 失效
    记录具有降低的互调失真的相位全息图

    公开(公告)号:US4054358A

    公开(公告)日:1977-10-18

    申请号:US684238

    申请日:1976-05-07

    IPC分类号: G03H1/00 G03H1/04

    CPC分类号: G03H1/00 Y10S359/90

    摘要: A moveable mask with a pin hole therethrough is disposed between a source of an object beam and a holographic recording medium. The pin hole limits the angular range of rays of the object beam transmitted to the medium, thereby preventing intermodulation distortion caused by rays of the object beam that have large angles therebetween. The mask may be moved to cause all of the rays of the object beam to pass through the pin hole, whereby a hologram is recorded.

    摘要翻译: 具有针孔的可移动掩模设置在物体光源和全息记录介质之间。 针孔限制了传递到介质的物体光束的射线的角度范围,从而防止由它们之间具有大角度的物体光束引起的互调失真。 可以移动掩模以使物体光束的所有光线穿过针孔,从而记录全息图。