Precursor composition for optical resin, resin for optical use, optical element, and optical article

摘要

The optical element of the present invention has a first member and a second member which have been joined in close contact, and has nd1>nd2 and (nF1-nC1)<(nF2-nC2), where the first member is formed of a resin having both a benzene ring and a fluorine atom, or the second member is formed of a resin having an alicyclic structure It also makes use of an optic-purpose resin precursor composition prepared by mixing a first resin precursor having nd<1.50 and (nF-nC)>0.003 in an uncured state and a second resin precursor having nd<1.62 and (nF-nC)>0.010.