Nippon Sheet Glass Company, Limited

Noboru Otani

Motoaki Yoshida

Shoji Mase

Satoshi Ishizuka

Naoto Hirayama

Hisayuki Kayanoki

A process for producing a plastic lens is disclosed, which comprises the steps of: providing a primer layer comprising a polyurethane on the surface of a plastic lens substrate; subsequently providing a hard coat layer comprising a silicone resin on the surface of the primer layer; and then providing a single-layer or multi-layer anti-reflection coating on the surface of the hard coat layer by depositing an inorganic material, wherein the polyurethane used for providing the primer layer is a thermosetting polyurethane.

Process for producing plastic lens comprising a primer layer, a hard

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.

Plastic lens

A process for producing a plastic lens, which comprises:

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Odawara, Japan

Noboru Otani