To obtain a transparent epoxy resin component which is less likely to generate heat at the tie of curing, has excellent cuttability and transparency and is less likely to cause yellowing.

Thei resin compsn., for a transparent component, comprises the following components: (a). a bisphenol A type epoxy resin having a viscosity of not more than 80P at 25°C; (b). an epoxy resin curing agent comprising a polyoxypropylene amine-based diamine and triamine, the proportion of the diamine being 5 to 50wt.%; and (c). a hindered amine light stabilizer.