Seiko Epson Corporation

Panasonic Electric Works Co., Ltd.

Ehs Lens Philippines, Inc.

Shuji Naito

Katsuyoshi Takeshita

Jun Kinoshita

Yusuke Kutsukake

Takeyuki Yamaki

Mikito Nakajima

Hiroshi Yokogawa

Koichi Takahama

Akira Tsujimoto

Ryozo Fukuzaki

Yosuke Sugihara

Hidenori Komai

A primer layer is formed on a plastic lens substrate, a hard coat layer is formed on the primer layer using a coating composition comprising metal oxide fine particles, an organosilicon compound represented by the general formula RSiX, and a compound having a biphenyl sulfide compound, and an organic antireflective layer. In the plastic lens comprising a plastic lens substrate as obtained above, a plastic lens having excellent durability, impact resistance and mar resistance, and a method of producing the plastic lens are provided.

Plastic lens and method of producing plastic lens

The plastic lens has the hard coat layer on a plastic lens base material containing at least sulfur atom and the organic anti-reflection film on the hard coat layer and further has a primer layer between the plastic lens base material and the hard coat layer. The hard coat layer comprises metal oxide particulates at least containing titanium oxide with rutile-type crystal structure and an organic silicon compound expressed by general Formula: R1SiX13. The organic anti-reflection film comprises a coating composition at least containing an organic silicon compound expressed by general Formula: R2nR3 mSiX24-n-m and silica system particulates of 1 to 150 nm mean particle diameter and has a refractive index which is lower than that of that of the hard coat layer by 0.10 or more.

Plastic lens and method of manufacturing a plastic lens

A plastic lens includes: a plastic lens base material; a hard coat layer formed on the plastic lens base material; an organic antireflection film formed on the hard coat layer; and a primer layer between the plastic lens base material and the hard coat layer. The plastic lens base material contains at least a sulfur atom. The hard coat layer contains at least: fine metal oxide particles containing a titanium oxide having a rutile-type crystalline structure; and an organosilicon compound represented by a general formula of RSiX. The antireflection film contains a coating composition containing at least: an organosilicon compound represented by a general formula of XRSi&#x2014;Y&#x2014;SiRX; an epoxy group-containing organic compound containing one or more epoxy group in a molecule; and fine silica particles with average particle size of 1 to 150 nm, the antireflection film having a refractive index lower than that of the hard coat layer by 0.10 or more.

Plastic lens and manufacturing method of plastic lens

An optical article includes a plastic substrate, wherein a primer layer and a hard coat layer are formed on a surface of the plastic substrate, and the primer layer is formed from a coating composition containing the following components (A) to (C): (A) a polyurethane resin; (B) metal oxide fine particles; and (C) an organosilicon compound.

Optical article and process for producing optical article

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Minowa-machi, Japan

Shuji Naito