Apparatus employing a grating to provide and move the source of a wave energy distribution
    1.
    发明授权
    Apparatus employing a grating to provide and move the source of a wave energy distribution 失效
    使用能够提供和移动波动能量分配源的设备

    公开(公告)号:US3698789A

    公开(公告)日:1972-10-17

    申请号:US3698789D

    申请日:1971-10-20

    申请人: BENDIX CORP

    发明人: WOLBER WILLIAM G

    IPC分类号: G03H1/08 G02B5/18 G02B27/38

    CPC分类号: G03H1/08

    摘要: A hologram is synthesized by moving two apparent sources of diverging wave energy distributions to form different interference patterns and by superimposing these interference patterns on a recording surface. The source or apex of one diverging wave energy distribution is moved substantially in a plane. The source or apex of the other diverging distribution is moved substantially perpendicular to the recording surface by directing a thin beam of laser light to strike a blazed grating disposed substantially perpendicular to the recording surface. The grating expands the received laser beam to form a diverging wave energy distribution. The apex of this distribution is moved by deflecting the laser beam to strike different positions on the grating at different distances from the recording surface.