Photochromic lens for eye glasses

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United States of America Patent

PATENT NO 9335566
APP PUB NO 20140198296A1
SERIAL NO

14110605

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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[Problem] To provide a photochromic lens for eye glasses, which has a high refractive index and excellent light-controlling properties and has such a constitution that the weight and thickness of the lens can be reduced. [Solution] Provided is a photochromic lens for eye glasses, which is produced by polymerizing a polymerizable composition prepared by dissolving a photochromic compound into a monomer mixture comprising a first radically polymerizable monomer represented by general formula (I), a second radically polymerizable monomer represented by general formula (II) and divinylbenzene that has a purity of 50% or more and contains a divinylbenzene component and an ethylvinylbenzene component at a total content of 90% or more.

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Patent Owner(s)

  • HOYA CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kadowaki, Shinichiro Tokyo, JP 12 32

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