Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1978-10-16
1980-01-01
Corbin, John K.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
350189, 351176, G02B 304, G02C 702
Patent
active
041814096
ABSTRACT:
A series of non-lenticular ophthalmic lenses for use in the correction of aphakia having, in the case of each lens of the series, a front surface of rotationally symmetrical aspheric cross-sectional curvature designed for wide field of view with consideration of the aphakic eye as a dynamic optical system and geometry permitting cast-finishing to patient's prescription in currently fashionable large lens sizes with minimal weight, thickness and flatness allowing close fitting to the eye. The front surface aspheric coefficients are selected to overcome prior art rapid zero edge thickness conditions.
REFERENCES:
patent: 3169247 (1965-02-01), Davis et al.
patent: 3434781 (1969-03-01), Davis et al.
patent: 3781097 (1973-12-01), Bechtold
patent: 4073578 (1978-02-01), Welsh
patent: 4128304 (1978-12-01), Sussman
Reilly James A.
Whitney Donald B.
Young John M.
American Optical Corporation
Corbin John K.
Duggan Jeremiah J.
Schneeberger Stephen A.
Spencer Alan H.
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