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:
Mar. 05, 1996
Filed:
Jun. 11, 1992
Shoji Mase, Odawara, JP;
Noboru Otani, Odawara, JP;
Motoaki Yoshida, Tokyo, JP;
Satoshi Ishizuka, Takarazuka, JP;
Hisayuki Kayanoki, Takarazuka, JP;
Naoto Hirayama, Yokkaichi, JP;
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
A plastic lens formed by laminating, in the order as described below, (A) a plastic lens substrate having a refractive index in the range of 1.50 to 1.70, (B) a primer layer containing a metal compound of at least one metal selected from the group consisting of Al, Ti, Zr, Sn and Sb and a polyurethane, or (B') a primer layer formed from a polyurethane containing at least one element selected from the group consisting of Cl, Br, I and S, (C) a hard coating layer, and (D) a single-layered or multi-layered anti-reflection layer formed by vapor-depositing an inorganic substance.