Plastic lens and method of manufacturing thereof.

摘要

A plastic lens having a refractive index of not less than 1.55, comprising a polymer formed from dimethallyl phthalate as major monomeric constituent and, if necessary, one or more monomers represented by the general formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="18" wi="82" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sub>1</Sub> and R<Sub>2</Sub> represent each a hydrogen atom or methyl group and m and n represent each an integer of from 0 to 3, or
<Chemistry id="chema02" num="0002"><Image id="ia02" he="13" wi="83" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sub>3</Sub> and R<Sub>4</Sub> represent each a hydrogen atom or methyl group and n represents an integer of from 2 to 9. A method for manufacturing such a lens is also disclosed.