| abstract |
Disclosed is a lens-shaped cured product which is excellent in releasability, shape reproducibility and adhesion, while having high refractive index. The lens shape of the cured product is hardly deformed when the cured product is exposed to force or temperature change. Also disclosed is a resin composition having good stability, which enables to obtain such a cured product. Specifically disclosed is a resin composition containing a polyfunctional (meth)acrylate (A) having three or more (meth)acryloyl groups in a molecule, a urethane (meth)acrylate (B) which is a reaction product of a diol compound (b-1) having a molecular weight of 48-1000, an aromatic polyisocyanate (b-2) and a hydroxylated (meth)acrylate (b-3), an o-phenylphenol polyethoxy acrylate (C) having an average repetition number of ethoxy groups of 1-3, and a photopolymerization initiator (D). |