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133 条记录 (耗时 0.012 秒)

    Out-of-sync detector for film printers
    21.
    发明授权
    Out-of-sync detector for film printers 失效
    电影打印机的同步检测器

    公开(公告)号：US3606543A

    公开(公告)日：1971-09-20

    申请号：US3606543D

    申请日：1969-07-28

    申请人： BELL & HOWELL CO

    发明人： BALINT ANDREW

    IPC分类号： G03B27/475 ,  G03B31/04

    CPC分类号： G03B27/475

    摘要： AN OUT-OF-SYNC DETECTOR FOR FILM PRINTERS WHEREIN FILM COPIES AND MADE BY CONTINUOUS PRINTING FROM CLOSED LOOP PICTURE AND AUDIO MASTERS. INDICIA ARE LOCATED ON EACH MASTER LOOP AND ARE SENSED BY DETECTORS. THE DETECTORS CONTROL THE OPENING AD CLOSING OF SERIALLY CONNECTED SWITCHES. AS LONG AS THE TWO MASTER LOOPS MOVE IN SYNCHRONISM, THE SWITCHES CLOSE AT DIFFERENT TIMES, HOWEVER, IF THE TWO MASTER LOOPS DROP OUT-OF-SYNC, BOTH SWITCHES ARE CLOSED AT THE SAME TIME AND COMPLETE A CIRCUIT THAT SHUTS DOWN THE OPERATION OF THE PRINTER.

    Optical printer for motion picture film
    22.
    发明授权
    Optical printer for motion picture film 失效
    光学打印机运动图片薄膜

    公开(公告)号：US3580666A

    公开(公告)日：1971-05-25

    申请号：US3580666D

    申请日：1969-07-31

    申请人： ROBERT G VANCE

    发明人： VANCE ROBERT G

    IPC分类号： G03B27/475 ,  G03B21/32 ,  G03B27/32

    CPC分类号： G03B27/475

    摘要： An optical printer for superimposing titles or the like on motion picture film in which images from picture, title and title shadow matte rolls are projected onto raw film stock in a continuous operation. A cue roll provides for automatic advancement of this title and title-shadow matte and title rolls and also enables variations in light intensity and fade-in and fadeout to be effected. A second printing unit operated by the cue roll provides for lap dissolve and checkerboarding in coordinated time relationship with the first printer.