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:
Jan. 04, 2000
Filed:
Apr. 06, 1995
Applicant:
Inventors:
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428328 ; 351159 ; 351166 ; 428403 ; 428404 ; 428412 ; 4284255 ;
Abstract
There are provided a coating composition, for use on a plastic lens with a refractive index exceeding 1.60, for avoiding interference fringes and unevenness in the reflected color, and a lens coated with such coating composition. The coating composition contains an organic silicon compound represented by R.sup.1.sub.a R.sup.2.sub.b Si(OR.sup.3).sub.4-(a+b) and modified sol of a double structure in which nuclei composed of tin oxide colloid particles are surrounded by tin oxide-tungsten oxide complex colloid particles, and the plastic lens is coated with such coating composition.