Disclosed is an ionizing radiation curable resin composition is provided which is suitable for the production of optics, such as Fresnel lenses, with a high refractive index, possessing good scratch resistance. The ionizing radiation curable resin composition for a Fresnel lens comprises the following components (A) to (D), the radiation curable resin composition providing, upon curing, a cured product having a refractive index of not less than 1.55: A transmission screen prepared using the resin composition is also disclosed.(A) A bisphenol A epoxy(meth)acrylate represented by chemical formula 1wherein R represents H or CH3 and n is an integer of 1 or more;(B) a monofunctional (meth)acrylate;(C) a bifunctional (meth)acrylate; and(D) a polymer.
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