NASA NTRS ยท 20020087643
Aid for the Visually Impaired
Abstract
Viewstar is a video system that magnifies and focuses words so partially sighted people can read or type from printed or written copy. Invented by Dr. Leonard Weinstein, a Langley engineer, the device enables Sandra Raven, Weinstein's stepdaughter, who is legally blind, to work as a clerk typist. Weinstein has also developed other magnification systems for individual needs.
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1989-01-01. Aid for the Visually Impaired. https://ntrs.nasa.gov/citations/20020087643
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