Illuminated panels
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United States of America Patent
Stats
-
Jan 27, 1981
Grant Date -
N/A
app pub date -
Mar 7, 1979
filing date -
Mar 15, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self-illuminating panel in which characters are unobtrusively illuminated by projection of light into a narrow face of a transparent flexible lamina marked with the characters. Each character, which may be a translucent printed figure, provides an optical discontinuity which disperses the light so that the diffusely illuminated character can be viewed in contrast against a dark background behind the lamina. Pressure applied on and through the flexible lamina enables operation of an array of switches disposed behind the lamina.
First Claim
Family
International Classification(s)
Cited Art Landscape
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