Display element with notched disk
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United States of America Patent
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-
Oct 8, 1991
Issued Date -
N/A
app pub date -
Jul 27, 1989
filing date -
Jun 9, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotor presents bright and dark sides of a flat disk to a viewer. When the bright side is presented this side plus a stationary panel form a bright viewing area. When the dark side is presented the panel is occluded. The edges of the panel and of the disk in ON position define an aperture for light emission from an optic fibre end.
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Cited Art Landscape
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