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:
Nov. 22, 2016
Filed:
Feb. 27, 2014
Katsushi Hamakubo, Hino, JP;
Kae Ito, Hino, JP;
Katsushi Hamakubo, Hino, JP;
Kae Ito, Hino, JP;
HOYA CORPORATION, Tokyo, JP;
Abstract
To provide a plastic lens having a λ/4 layer exhibiting excellent adhesion between a plastic substrate and a hard coat layer, and a method for producing thereof. A plastic lens containing: a plastic substrate (A); a λ/4 layer (B) that is formed on the plastic substrate, is formed by curing a composition comprising a bifunctional or higher functional acrylate compound, a dendritic aliphatic compound having an acrylate group at an end thereof, and metal oxide particles, and has a thickness of from 50 to 100 nm; and a hard coat layer (C) that is formed on the λ/4 layer directly or through another layer.