Optically-scanned liquid-crystal projection display
    1.
    发明授权
    Optically-scanned liquid-crystal projection display 失效
    光学扫描液晶投影显示

    公开(公告)号:US3723651A

    公开(公告)日:1973-03-27

    申请号:US3723651D

    申请日:1971-12-27

    Applicant: RCA CORP

    Inventor: GOROG I

    CPC classification number: G02F1/135 H04N5/7441

    Abstract: A display system is disclosed which includes a multi-layer light control panel having a first transparent electrode, a photoconductor, a normally-transparent liquid crystal, and a second transparent electrode. A laser light beam is modulated with video information and raster scanned to the photoconductor. A direct-current potential is applied across the electrodes during the scanning of a frame, so that spatial variations are created in the light transmissivity of the liquid crystal. During a first portion of a vertical retrace period, a short circuit is placed across the electrodes, and a flash lamp is projected through the light control panel to a display screen. During a second portion of the vertical retrace period, an alternating current potential is applied to the electrodes to restore the liquid crystal to its transparent condition.

    Abstract translation: 公开了一种显示系统,其包括具有第一透明电极,光电导体,常透明液晶和第二透明电极的多层光控制面板。 用视频信息调制激光束,并对光电导体进行光栅扫描。 在扫描框架期间,跨电极施加直流电势,使得在液晶的光透射率中产生空间变化。 在垂直回扫周期的第一部分期间,跨越电极放置短路,闪光灯通过光控制面板投射到显示屏。 在垂直回扫周期的第二部分期间,将交流电势施加到电极以将液晶恢复到其透明状态。

    Color encoded hologram playback apparatus
    2.
    发明授权
    Color encoded hologram playback apparatus 失效
    彩色编码HOLOGRAM播放器

    公开(公告)号:US3858239A

    公开(公告)日:1974-12-31

    申请号:US40123273

    申请日:1973-09-27

    Applicant: RCA CORP

    Inventor: GOROG I

    CPC classification number: H04N5/76 G03H1/26 H04N5/90 H04N9/82

    Abstract: A hologram record is made containing information representative of the color and brightness of a scene. A replica of the hologram is played back in a system including a laser imaging unit for producing brightness and color representative signals which may be applied to a display device for reproducing the scene in its original colors.

    Abstract translation: 制成包含表示场景的颜色和亮度的信息的全息图记录。 全息图的副本在包括用于产生亮度和颜色代表信号的激光成像单元的系统中被回放,该激光成像单元可以应用于用于以其原始颜色再现场景的显示装置。

    Holographic recording system for large objects
    3.
    发明授权
    Holographic recording system for large objects 失效
    大对象全息记录系统

    公开(公告)号:US3740111A

    公开(公告)日:1973-06-19

    申请号:US3740111D

    申请日:1971-12-27

    Applicant: RCA CORP

    Inventor: GOROG I SPONG F

    CPC classification number: G03H1/10

    Abstract: A holographic arrangement for recording a high quality hologram of an object having a length many times the coherence length of the coherent light waves employed in recording the hologram.

    Abstract translation: 一种用于记录物体的高质量全息图的全息装置,其具有在记录全息图中使用的相干光波的相干长度的许多倍的长度。

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