Optical switch
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United States of America Patent
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-
Nov 1, 2005
Grant Date -
Apr 8, 2004
app pub date -
Aug 25, 2003
filing date -
Aug 28, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical switch has an electromagnetic driving mechanism that includes a U-shaped magnetic core having an intermediate portion between two leg parts, a coil wound on the U-shaped magnetic core, an armature having two end portions that can face each other on the two leg parts and supported in such a manner that the armature can make an oscillating motion, and a permanent magnet arranged to apply a magnetic flux to the U-shaped magnetic core and the armature. The optical switch also has a mirror as an optical path switching unit directly fixed on the armature, an incidence-side optical fiber for making light incident on the mirror, and emission-side optical fibers where the light with its optical path switched by the mirror is coupled.
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