An X-Y Platform for RANDSIGHT-Type Instruments

by R. W. Clewett, Samuel M. Genensky, H. E. Petersen


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Describes a hand-operated mechanical device called an X-Y Platform that, when used with RANDSIGHT-type closed circuit TV systems for the partially sighted, permits design simplifications that lead to lower costs without sacrificing instrument quality or effectiveness. The device is placed on a desk or table below a fixed TV camera. Reading or writing materials are placed on its upper surface, which may be easily moved to the left or right and toward or away from the user so the camera can traverse a line of print or shift from line to line. The platform thus eliminates the need for a movable camera. A detailed discussion of the construction of the platform, illustrations, and recommendations for its operation should be of value to those who wish to construct their own platforms.

This report is part of the RAND Corporation Report series. The report was a product of the RAND Corporation from 1948 to 1993 that represented the principal publication documenting and transmitting RAND's major research findings and final research.

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