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    Simulation of an extended incoherent object source in holography so as to eliminate speckle noise
    4.
    发明授权
    Simulation of an extended incoherent object source in holography so as to eliminate speckle noise 失效
    在全息扫描中模拟扩展的无源对象源，以消除特征噪声

    公开(公告)号：US3640599A

    公开(公告)日：1972-02-08

    申请号：US3640599D

    申请日：1969-04-04

    Applicant: AMERICAN OPTICAL CORP

    Inventor： LIGTEN RAOUL F VAN

    IPC: G03H1/32 ,  G06K9/74 ,  G02B27/00

    CPC classification number: G06K9/74 ,  G03H1/32 ,  Y10S359/90

    Abstract: This specification discloses systems for recording holograms and for reconstructing images from such holograms. The object of which the hologram is to be made is illuminated with a plurality of coherent point sources of light. Light from the object forms an interference pattern with light from a reference point source of coherent light. This interference pattern is recorded to provide the hologram. In the reconstruction, a lens is provided to produce images of the reconstructions of the coherent light sources and of the reconstruction of the object. A mask is provided in the plane of the images of the reconstructed coherent sources, which mask is provided with means to transmit bundles of rays corresponding to different ones of the coherent light sources in sequence. As a result, a composite image will be produced approaching the appearance of the object illuminated by an extended incoherent source.

    Abstract translation: 本说明书公开了用于记录全息图并用于从这种全息图重建图像的系统。 全息图的目的是用多个相干点光源照亮。 来自物体的光与来自相干光的参考点源的光形成干涉图。 记录该干涉图案以提供全息图。 在重建中，提供透镜以产生相干光源的重建和对象的重建的图像。 在重建的相干光源的图像的平面中提供掩模，该掩模被提供有依次传送对应于不同相干光源的光束的装置。 结果，将产生接近由扩展非相干源照亮的物体的外观的合成图像。

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