Illumination for transmissive displays
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United States of America Patent
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Aug 20, 1991
Issued Date -
N/A
app pub date -
Jan 26, 1990
filing date -
Jan 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Illumination is provided for transmissive displays by the combination of (a) a light source which emits a thin, straight line of light, (b) cylindrical lens in front of the line of light and (c) a reflecting panel having (i) a first transparent layer which has spaced ridges on the side next to the light, (ii) an optional translucent diffusing layer next to the smooth, away from the light, side of the first layer and (iii) a third layer which is transparent and structurally stable that is attached to the second side of the translucent layer.
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