Glasses with selectively adjustable optical power lenses
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United States of America Patent
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Dec 7, 2021
Grant Date -
Jun 25, 2020
app pub date -
Feb 22, 2017
filing date -
Feb 22, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A method of fabricating a lens element for an adjustable power lens of the kind comprising two lens elements that are slidable relative to one other in a direction transverse the optical axis of the lens and have respective lens surfaces that are shaped to act together to form a corrective lens, the power of which varies according to the relative disposition of the two lens elements, the method comprising the steps of forming a lens puck having two opposite faces, which are shaped to form opposite lens surfaces of one of the lens elements of the adjustable power lens, the puck having at least one alignment feature, and thereafter edging the puck to a desired eye shape with reference to the alignment feature.
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