| 摘要 |
A photo-curable resin composition for an optical component is provided, the photo-curable resin composition including: (A) an epoxy resin having a refractive index of not less than 1.57; (B) an alicyclic epoxy resin; (C) an oxetane resin having at least one oxetane ring in its molecule; and (D) a photoacid generator; wherein the resin (A) is present in a proportion of 20 to 75 wt% based on the amount of an overall resin component of the resin composition; wherein the component (D) is present in a proportion of 0.5 to 2.5 parts by weight based on 100 parts by weight of the overall resin component; the resin composition being free from a solvent component and having a viscosity of 0.5 to 25 Pa·s in a 25°C environment. Therefore, the photo-curable resin composition has a higher transparency and a higher refractive index in a cured state, and is excellent in heat resistance and handleability even without addition of a compound having an alcoholic hydroxyl group. The photo-curable resin composition is suitable as an optical lens material and an adhesive material for bonding optical components. |
