| abstract |
A curable resin composition excellent in transparency, heat resistance, and mechanical strength, and an optical member that is required to have high optical properties using the composition. In the epoxy resin represented by the formula (1), the triglycidyl ether body is 40 to 75 area% epoxy resin and the tetraglycidyl ether body is 12 to 40 area% as measured by gel permeation chromatography. An epoxy resin that is an epoxy resin. [Selection figure] None |