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132 条记录 (耗时 0.01 秒)

    Belt microfilm camera
    11.
    发明授权
    Belt microfilm camera 失效
    皮带微缩胶片相机

    公开(公告)号：US4249821A

    公开(公告)日：1981-02-10

    申请号：US50731

    申请日：1979-06-21

    申请人： Michael W. Rudy ,  Forrest L. Langford ,  Robert D. Therien

    发明人： Michael W. Rudy ,  Forrest L. Langford ,  Robert D. Therien

    IPC分类号： G03B27/465 ,  G03B27/60 ,  G03B27/32

    CPC分类号： G03B27/60 ,  G03B27/465

    摘要： A microfilm camera, typically for 16 mm film, having plural coplanar friction-driven belts. The film is held to the belts by vacuum, so that the film and the belts move together.Vacuum film-loop chambers allow accurate low-inertia control of the film positioning for exposure.An intermittently rotatable shutter may be provided for appropriate exposure of the desired image upon the film.Programmable logic receives data from plural sensors and its controls drive means to correlate significant film movement and stationary periods with the functioning of opto-mechanical elements for exposing the film while it is stationary.

    摘要翻译： 通常为16mm薄膜的微缩胶片相机具有多个共面的摩擦驱动带。 薄膜通过真空固定在皮带上，使薄膜和皮带一起移动。 真空膜回路腔允许精确的低惯量控制胶片定位曝光。 可以提供间歇地旋转的快门，用于将期望的图像适当地曝光在胶片上。 可编程逻辑接收来自多个传感器的数据及其控制驱动装置，用于将显着的胶片移动和静止时段与光机械元件的功能相关联，以在胶片静止时曝光胶片。

    Photographic printing apparatus
    12.
    发明授权
    Photographic printing apparatus 失效
    摄影打印设备

    公开(公告)号：US3890045A

    公开(公告)日：1975-06-17

    申请号：US44485474

    申请日：1974-02-22

    申请人： BERNSTEIN HERBERT J ,  ARNOLD WILLIAM J

    发明人： BERNSTEIN HERBERT J ,  ARNOLD WILLIAM J

    IPC分类号： G03B21/11 ,  G03B27/60

    CPC分类号： G03B21/118 ,  G03B27/60

    摘要： A photographic reader-printer in which printing paper is held flat and supported for exposure by a vacuum platen operating against its back surface so that the sensitive side is down for receiving upwardly directed image illumination. A transparent vacuum platen having a frosted glass lower face is disclosed as an aid in focusing or aligning in the absence of printing paper.

    摘要翻译： 一种照相读取器 - 打印机，其中打印纸被保持平坦并被支撑以通过对其背面操作的真空压板进行曝光，使得敏感侧向下以接收向上定向的图像照明。 公开了一种具有磨砂玻璃下表面的透明真空压板，用于在没有打印纸的情况下聚焦或对准。

    Photographic camera with interchangeable film system
    13.
    发明授权
    Photographic camera with interchangeable film system 失效
    摄影摄像机与交联膜系统

    公开(公告)号：US3836932A

    公开(公告)日：1974-09-17

    申请号：US41423273

    申请日：1973-11-09

    申请人： LEITZ ERNST GMBH

    发明人： LOHL G ,  SCHNEIDER W ,  SCHRODER H ,  NOACK R

    IPC分类号： G03B27/58 ,  G03B27/60 ,  G03B1/50 ,  G03B19/00

    CPC分类号： G03B27/587 ,  G03B27/60

    摘要： A photographic camera having a film-changing and multi-circuit vacuum system, especially for application in process photography. The improvements include: GUIDES FOR THE USE OF ARBITRARY FILM WIDTHS PROVIDED IN THE CAMERA; A FILM PLATE TO ACCOMMODATE THE SEATING OF THE LARGEST ANTICIPATED FILM WIDTH AND HAVING AT LEAST TWO CENTERING PINS FOR EACH FILM CONTAINER; A COUPLE FOR EACH FILM CONTAINER CENTERED BETWEEN THE CENTERING PINS FORMING A CONNECTION BETWEEN THE CAMERA DRIVE AND THE FILM CONTAINER FOR FILM TRANSPORT; AND INTERCHANGEABLE BRIDGING MEMBERS LOCATED ON THE CENTERING PINS WHICH COUPLE BOTH THE COUPLES AND THE FILM CONTAINERS SO THAT ANY KIND OF FILM WIDTH AND FILM CONTAINER WHICH FITS ON THE FILM PLATE MAY BE USED.

    摘要翻译： 一种具有变膜和多回路真空系统的照相机，特别适用于工艺摄影。 改进包括：

    Photomechanical camera
    14.
    发明授权
    Photomechanical camera 失效
    光电相机

    公开(公告)号：US3813682A

    公开(公告)日：1974-05-28

    申请号：US30826772

    申请日：1972-11-20

    申请人： DAINIPPON SCREEN MFG

    发明人： MIYAUCHI Y ,  MORI N ,  NISHIKAWA Y ,  NAGAO Y ,  MATSUI S

    IPC分类号： G03B27/32 ,  G03B27/60 ,  G03B19/04

    CPC分类号： G03B27/60 ,  G03B27/323

    摘要： A photomechanical camera for use with a roll film has a vacuum suction box disposed in a camera housing and having a perforated front wall facing the lens system of the camera. An endless conveyor belt of a perforated material extends around the suction box and has a front run extending in substantially parallel and close contact relationship with the suction box front wall so that air is sucked into the suction box through the perforations in the belt and the suction box front wall. A length of film severed off and fed from the roll film onto the front run of the conveyor belt is sucked against the belt in the front run thereof and is conveyed toward an exposure position in which the center of the length of film in alignment with the optical axis of the lens system. Drive of the belt is so controlled that the motion of the belt is interrupted when the length of film is reached by the exposure position whereby the film is retained by the vacuum force in the exposure position during the exposure thereof.

    摘要翻译： 用于卷膜的照相机用照相机具有设置在照相机外壳中的真空抽吸盒，并且具有面向相机透镜系统的穿孔前壁。 穿孔材料的环形传送带围绕抽吸箱延伸并且具有与抽吸箱前壁大致平行和紧密接触的延伸的前部运行，从而空气通过带中的穿孔吸入抽吸箱，并且抽吸 箱前墙。 从卷筒膜上切下并从输送带前进出来的薄膜长度在其前端被吸附在皮带上，并被输送到曝光位置，在该曝光位置，胶片长度的中心与 透镜系统的光轴。 带的驱动被如此控制，使得当胶片的长度达到曝光位置时，带的运动被中断，由此在曝光期间胶片被曝光位置的真空力保持。