Eyeglasses with rotationally secured circular lenses, lens jig and method of jig use
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United States of America Patent
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Mar 21, 2017
Grant Date -
Sep 18, 2014
app pub date -
Mar 17, 2014
filing date -
Mar 15, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Eyeglasses with rotationally secured circular lenses, lens rigs, and methods of use are provided herein. A pair of eyeglasses may include a circular first lens and a circular second lens, each having a lens peripheral surface. At least one of said first lens and said second lens has a line of astigmatism with a prescribed rotational position relative to a wearer eye. The glasses also have a frame having a circular first frame opening into which the first lens is mounted and a circular second frame opening into which the second lens is mounted, each frame opening having an inward frame opening peripheral surface. A lens rotational securing means for securing each of the lenses against rotation relative to said frame, such that the line of astigmatism is prevented from moving out of its prescribed rotational position within its frame opening.
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