Rotary optical delay line
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United States of America Patent
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-
Nov 18, 2008
Grant Date -
Jun 19, 2008
app pub date -
Oct 31, 2007
filing date -
Nov 3, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed herein is an optical delay line. The optical delay line includes a body and at least one wing, which constitute a rotating body that rotates around a rotational axis. The rotational wing includes a retroreflective curved surface, which is formed so that light can be vertically reflected by a reflective surface of the rotational wing. The retroreflective curved surface is formed so as to reversely reflect the light while varying an optical path difference at a predetermined speed when the rotating body rotates at a regular angular velocity. Thus, a long time delay value can be effectively generated.
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