Long-range optical device having image stabilization
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United States of America Patent
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Apr 11, 2017
Grant Date -
Dec 18, 2014
app pub date -
Jul 14, 2014
filing date -
Jan 13, 2012
priority date (Note) -
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Abstract
A long-range optical device has at least one optical channel, which has a housing and an arrangement of optical elements, wherein at least one of the optical elements is movable relative to the housing for image stabilization in the event of perturbing movements of the housing. The device further has a first passive stabilization system based on mass inertia for the at least one movable optical element, which, in the event of displacement of the at least one optical element relative to the housing, generates a first restoring force proportional to the displacement and a second restoring force proportional to the displacement velocity. The first stabilization system is designed for image stabilization in the event of perturbing movements in a first frequency range. The long-range optical device has at least one second stabilization system, which is coupled to the first stabilization system and is designed for image stabilization against perturbing movements in at least one second frequency range, wherein the first and the at least one second frequency ranges are at least partially different.
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