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| Genensky, S. M. | 1 |
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Genensky, S. M.; And Others – 1969
Some visually handicapped persons have difficulty reading or writing even with the aid of eyeglasses, but could be helped by visual aids which increase image magnification, light intensity or brightness, or some combination of these factors. The system described here uses closed circuit television (CCTV) to provide variable magnification from 1.4x…
Descriptors: Audiovisual Aids, Closed Circuit Television, Electromechanical Aids, Electronic Equipment
