| abstract |
[PROBLEMS] To provide a cured product that has a high appearance, is colorless and highly transparent, and can exhibit excellent optical properties such as a high refractive index, and can be molded in a short time, and is particularly useful for optical applications. A thermo / photo-curable resin composition, an optical material constituted by the resin composition, and an optical member obtained by curing the optical material. A thermo- and photo-curable resin composition comprising an aromatic epoxy compound, an alicyclic epoxy compound and / or a hydrogenated epoxy compound, and a cationic curing catalyst. [Selection figure] None |