Prescription eyewear made from non-prescription lens shield mate

Details Prescription eyewear made from non-prescription lens shield mate Prescription eyewear made from non-prescription lens shield mate

1992-08-21

1995-02-07

Ben, Loha

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Methods

351154, 2441, 2443, G02C 1300

Patent

active

053879503

ABSTRACT:
Prescription eyewear is disclosed comprising a non-prescription one-piece plastic lens shield within the periphery of which generally central apertures have been formed, and prescription lenses are permanently affixed within said apertures. The lens shield are generally obtained from optically defective lens shield material since apertures are to be cut out centrally from the lens shield. Alternatively, the non-prescription lens shield may be optically correct and, of course, may still be the source of the prescription eyewear.

REFERENCES:
patent: 1659165 (1928-02-01), Sangren
patent: 1721194 (1929-07-01), Tillyer
patent: 3517415 (1970-06-01), McGrath et al.
patent: 3824006 (1974-07-01), Voit
patent: 3838914 (1974-10-01), Fernandez
patent: 3904282 (1975-09-01), Batista
patent: 4021103 (1977-05-01), Gaspari
patent: 4051557 (1977-10-01), Bengtson et al.
patent: 4340282 (1982-07-01), Murakami
patent: 4810080 (1989-03-01), Grendol et al.
patent: 4943152 (1990-07-01), Whelen
patent: 5191364 (1993-03-01), Kopfer

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