Performance of Partially Sighted With Randsight I Equipped With an X-Y Platform (Classic Reprint) - Softcover
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Excerpt from Performance of Partially Sighted With Randsight I Equipped With an X-Y Platform
The TV monitors were symmetrically placed on either side of the down - pointing camera and rested on shelves that were normally kept at a height of 11% in. Above the working surface. They could be pulled toward or pushed away from the viewer over a distance of about 8 in. (from about 4 in. To 16 in. Behind the front edge of the working sur face), and they could be raised or lowered slightly, although this was rarely done. Each monitor was equipped with circuitry and con trols that permitted it (1) to display an image with a normal or re versed gray scale, and (2) to vary the location and height of the electronic window on the monitor screen.
The TV camera could be moved up and down for focusing over a distance of 27 in. By means of a reversible motor and lead screw, and could also be rotated about its optical axis. The latter motion per mitred it to present an erect image of printed or handwritten material no matter what the orientation of that material was relative to the working surface.
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Performance of Partially Sighted With Randsight I Equipped With an X-Y Platform
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Paperback. Zustand: New. Print on Demand. This book focuses on a study of partially sighted people who tested out a closed circuit TV system designed to help them read and write. The author, an expert in the field of vision impairment, provides a detailed description of the device and the testing procedure. The results of the study are presented in a series of tables and charts, and the author discusses the implications of these findings for the development of future assistive technology for the visually impaired. The study found that the device was able to significantly improve the reading and writing abilities of the participants, and the author concludes that this type of technology has the potential to make a real difference in the lives of people with vision impairments. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9780428059491_0
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Performance of Partially Sighted With Randsight I Equipped With an XY Platform Classic Reprint
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9780428059491
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Performance of Partially Sighted With Randsight I Equipped With an XY Platform Classic Reprint
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9780428059491
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