Backlit digitizer tablet
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United States of America Patent
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-
Jul 24, 1990
Grant Date -
N/A
app pub date -
Jun 23, 1989
filing date -
Jun 23, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A backlit digitizer tablet providing uniform illumination of the working surface, comprising biaxial fluorescent lamps supplying wide-area light emission under a sandwich top construction including an apertured shield electrode, a first clear spacer, an electrode array, a second clear spacer, and a translucent top, with optically transparent support means for the top.
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Family
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