| 摘要 |
An optical bulk storage arrangement for a digital computer comprising an information carrier, an image of which is projected by means of objective lens means onto a camera device, e.g.: a television camera tube, having means for temporarily storing the image, means for varying the position of the focal plane of the objective lens means relative to the information carrier between two exposures of the camera device and means for initiating an exposure when the focal plane is just passing through the information carrier.
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