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United States of America Patent
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Aug 27, 1996
Grant Date -
N/A
app pub date -
Sep 10, 1993
filing date -
Sep 11, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A back illuminated array of display elements each of which comprises a vane rotatable between two positions by interaction between an electromagnet and a permanent magnet attached to the vane. The electromagnet includes a monolithic member of soft magnetic material having a U-shaped portion and a flange portion end is configured in such a way as to reduce the reluctance of the magnetic circuit comprised by the electromagnet and permanent magnet. The monolithic member can be arranged to provide a bearing for the rotatable vane.
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