Ophthalmic lens series

Details Ophthalmic lens series Ophthalmic lens series

1974-08-05

1976-06-01

Rubin, David H.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351159, G02C 702

Patent

active

039604420

ABSTRACT:
A general purpose ophthalmic lens series incorporating an aspheric, atoric design concept which allows the selection of lens base curves substantially independently of traditional field of view or marginal error performance criteria. Factors of sensitivity of field errors to fitting distance, shape magnification, geometric distortion, eyelash clearance, reflections, applicability to large spectacle frames and general cosmetic appearance are optimized by base curve selection and field corrections are attended to by aspherizing one or both surfaces of the lenses.

REFERENCES:
patent: 3169247 (1965-02-01), Davis et al.
patent: 3434781 (1969-03-01), Davis et al.

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