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:
Apr. 14, 1992
Filed:
Nov. 03, 1989
Applicant:
Inventors:
Jean Taboury, Sceaux, FR;
Pierre Chavel, Chilly Mazarin, FR;
Denis Joyeux, Les Ulis, FR;
Dominique Baude, Saint Ouen, FR;
Assignee:
Essilor International-Compagnie Generale d'Optique, Creteil, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C / ; B29D / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
3511 / ; 264-17 ; 264-21 ; 264-24 ; 351161 ; 351177 ; 359570 ; 359571 ; 359743 ;
Abstract
A diffractive contact lens in relief includes a smoothing layer (50) of optically transparent material having a smooth outside surface (51) and placed over the optical surface (16) in relief so as to immerse the relief.