Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1979-10-11
1981-05-19
Corbin, John K.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
G02C 704
Patent
active
042681332
ABSTRACT:
An improved contact lens and method of forming the same which causes the lens to adopt and maintain a particular angular orientation upon the eye of a wearer. One or more characters are formed in relief upon a surface of the lens at a point which is intended as the topmost point in the lens when properly oriented. The relieved characters may be used alone or in combination with previously-known means for effecting orientation of the lens.
REFERENCES:
patent: 2133498 (1938-10-01), Dittmer
patent: 3833786 (1974-09-01), Brucker
patent: 4095878 (1978-06-01), Fanti
Fischer David J.
Reid James A.
Thomas John C.
Wooten Idella B.
Bausch & Lomb Incorporated
Corbin John K.
Parker Frank C.
Phipps Robert M.
Sugarman Scott J.
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