Teaching device for progressive power lenses
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United States of America Patent
Stats
-
Sep 29, 1981
Grant Date -
N/A
app pub date -
Jan 16, 1980
filing date -
Jan 16, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A teaching device to assist first-time wearers of progressive power eyeglasses in becoming accustomed to their use. The device according to a preferred embodiment, comprises a decal adapted to be attached to the lenses of the glasses, and provided with precisely shaped and positioned cutouts to locate and uncover at least parts of the distance, reading and progressive corridor portions of the lenses. By wearing glasses with the decal affixed to each lens for a couple of hours or so, the wearer can conveniently and easily learn which areas of the lenses to use for particular viewing tasks. After a couple of hours of use, the decals can simply be removed and discarded.
First Claim
Family
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Cited Art Landscape
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