Light-activated assistive reading device for visually impaired individuals
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United States of America Patent
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Mar 13, 2012
Grant Date -
May 15, 2008
app pub date -
Nov 15, 2006
filing date -
Nov 15, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
An assistive reading device for visually impaired users comprises a sheet-like member containing a photo-active material. The sheet-like member responds to light patterns representing data from a patterned light source to form tactile shapes on its surface. The visually impaired user obtains information by touching the tactile shapes. Preferably, the photo-active material is a layer of cross linked azobenzene liquid-crystalline polymers. The assistive reading device preferably is an output device for a computer.
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