Method and arrangement for optically representing information
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United States of America Patent
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-
Sep 9, 1997
Grant Date -
N/A
app pub date -
Nov 17, 1993
filing date -
Dec 23, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and an arrangement for optically representing information on a transparent projection surface using several projection modules and using through-light projection. The method and arrangement are both cost effective and ensures that an observer viewing even a large display of information is provided with a bright, contrast, homogeneous image. Each projection module is formed of a light source with a divergent beam radiating through a controllable light valve and a projection surface arranged behind it. The distance between the light valve and the projection surface is chosen in such a way that the image parts projected by adjacent modules border gaplessly to each other on the projection surface.
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