Eyeglass lens modules and method

Details Eyeglass lens modules and method Eyeglass lens modules and method

1983-02-22

1987-02-24

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351168, 351172, 351176, 351177, G02C 706, G02C 708, G02C 710

Patent

active

046453172

ABSTRACT:
An eyeglass lens module in which two lens components are formed. The first component is the conventional single vision stock lens having conventional corrections in the negative or positive diopter range and, indeed, for the patient requiring only bifocals or trifocals, the single vision stock lens can be of zero correction. The second veneer over-lay lens component is desirably formed of a plastic or glass material and is as thin as practical so that it becomes a veneer cover. These veneer over-lays are in modules containing bifocals or trifocals or vocational modifications of a given diopter correction. They can also contain special vocational features such as upper bifocals for airline pilots. Once the prescription is developed according to the method of the invention, the optical glass lens blank is then fixtured for receiving the veneer over-lay.

REFERENCES:
patent: 2209587 (1940-07-01), Tillyer
patent: 3877798 (1975-04-01), Tolar
patent: 4547049 (1985-10-01), Cotie

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