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Electronically controlled microfilm photographic image utilization device

机译:电控缩微胶卷摄影图像利用装置

摘要

An electronically controlled photographic image utilization device is arranged to transport a roll of microfilm having all images printed thereon in separate photographic areas, each area being arranged in a microfiche- type format. The photographic image utilization device has an automatic call- up feature so that any given photographic area may be selected in a first dimension and projected responsive to the push of a button, the operation of a rotary switch or both. A special bar code is printed along the edge of the film and used in conjunction with a closed loop film control system to eliminate the need for precise, clock- controlled synchronization between the film transport and the code reading. Preferably, the bar code is read by optical electronic sensors. Responsive thereto, the electronic control system accurately positions a selected photographic image, on the microfilm, within a viewing area. Thereafter, and while the film transport is being held stationary, any image on the microfilm may be selected for projection by a manual movement in second and third dimensions of a simple lens positioning mechanism which is small, compact, and easily moved. The reader may also be operated manually so that the automatic controls may be bypassed, if desired.
机译:电子控制的摄影图像利用设备被布置成在单独的摄影区域中输送其上印刷有所有图像的一卷微缩胶片,每个区域以缩微胶片类型的格式布置。摄影图像利用设备具有自动调出功能,因此可以在第一维度上选择任何给定的摄影区域,并响应于按钮的按下,旋转开关的操作或两者来进行投影。沿胶片的边缘印有特殊的条形码,并与闭环胶片控制系统结合使用,以消除在胶片传输和代码读取之间需要精确的,时钟控制的同步。优选地,条形码由光学电子传感器读取。响应于此,电子控制系统将所选的摄影图像精确地定位在微缩胶片上的观看区域内。此后,当胶卷传送装置保持静止时,可以通过手动移动小型,紧凑和容易移动的简单透镜定位机构的第二和第三维度来选择缩微胶片上的任何图像进行投影。如果需要,阅读器也可以手动操作,从而可以绕过自动控制。

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