Active multifocal lens
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Jul 5, 2014
filing date -
Jul 5, 2013
priority date (Note) -
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Abstract
An optical lens device has an actively controllable focal length. This device comprises an element with lensing effect comprising a plurality of regions. Each such region has a corresponding refractive power for providing a corresponding focal length distinct from the focal length of at least one other region of this plurality of regions. The device further comprises at least one non-centric addressable optical element integrated in or provided on the element with lensing effect. This at least one addressable optical element is adapted for changing the transmittance of at least one of the plurality of regions in response to a control signal. The device also comprises a control means for generating the control signal.
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