Data display device
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United States of America Patent
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-
Jul 24, 2007
Grant Date -
Jun 17, 2004
app pub date -
Feb 22, 2002
filing date -
Feb 23, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data display device including a light-guide element made of an optically transparent material having at least two polished surfaces faced to one another, whereby at least one surface contains at least one gravure forming a diffuse-reflective character, and a light source arranged close to the light-guide element to illuminate said character.
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Family
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Cited Art Landscape
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