Eyeglasses

Details Eyeglasses Eyeglasses

1978-02-21

1980-05-13

Evans, F. L.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

G02C 514

Patent

active

042026091

ABSTRACT:
Suspension Eyewear consists of a pair of ophthalmic lenses attached to a metal centerpiece in the manner of conventional rimless eyeglasses. Instead of hinges and temples there are two suspension lines attached to each lens near the outer edges, and at points sufficiently separated to provide stability. The plane of the front assembly to the face is controlled by adjusting the length of these lines in a device positioned just in front of and about midway the ear. A wirebound springwire attached to the adjusting device extends over and behind each ear to below the mastoid. These spring earwires will return the front assembly to proper alignment when it is lightly pushed or pulled, in any direction, and released.

REFERENCES:
patent: 836796 (1906-11-01), Anderson
patent: 1706083 (1929-03-01), Simonds
patent: 1833792 (1931-11-01), Pfaus et al.
Barck, History of Spectacles, May 13, 1960, pp. 457, 463, "The Optician".

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