Television camera tube utilizing light beam scanning
    27.
    发明授权
    Television camera tube utilizing light beam scanning 失效
    电视摄像机应用光束扫描

    公开(公告)号:US3716747A

    公开(公告)日:1973-02-13

    申请号:US3716747D

    申请日:1970-09-04

    Inventor: PATEL C

    CPC classification number: H01J31/265

    Abstract: THE TARGER OF A TELEVISION CAMERA TUBE INCLUDES A PHOTOEMITTER OR A PHOTOCONDUCTOR AND A PHOTOCHROMIC GLASS LAYER DISPOSED BETWEEN AN IMAGE BEING VIEWED AND THE SOURCE OF A SCANNING LASER BEAM. THE IMAGE IS FOCUSED ONTO ONE SURFACE OF THE PHOTOCHROMIC GLASS LAYER WHILE THE SCANNING BEAM IS MADE INCIDENT ON THE OPPOSITE SURFACE THEREOF. THE MEAM TRANSMITTED THROUGH THE LAYER EMERGES WITH MODULATED INTENSITY CORRESPONDING TO THE INTENSITY PATTERN OF THE IMAGE AND THEN IMPINGES ON THE PHOTOEMITTER, OFR EXAMPLE, TO GENERATE FREE ELECTRONS MODULATED IN SCAN TIME IN ACCORDANCE WITH THE IMAGE INTENSITY PATTERN. THESE ELECTRONS ARE COLLECTED TO PRODUCE AN ELECTRICAL SIGNAL REPRESENATATIVE OF THE IMAGE.

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