The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1987
Filed:
Aug. 14, 1985
Applicant:
Inventors:
Robert E Bauman, Glendale, AZ (US);
S Kumar Chandrasekaran, Paradise Valley, AZ (US);
Shaow B Lin, Phoenix, AZ (US);
Lyle M Bowman, Scottsdale, AZ (US);
Thomas B Harvey, III, Scottsdale, AZ (US);
Assignee:
Sola U.S.A. Inc., Phoenix, AZ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
3511 / ; 264-14 ; 264-17 ; 264-18 ; 264-26 ;
Abstract
A contact lens for correction of astigmatism is formed from a single polymeric or copolymeric material. The lens has a central optical zone of greater rigidity than a surrounding non-optical zone. The rigidity of the central optical zone is sufficient for it to retain an astigmatism-correcting shape when worn on an eye, while the surrounding non-optical zone conforms to the shape of the eye.