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.
提供了一种用于光学元件的光固化
树脂组合物,该光固化
树脂组合物包括:(A) 折射率不小于1.57;(B)脂环族环氧
树脂;(C)氧杂
环丁烷树脂,其分子中至少有一个氧杂
环丁烷环;和(D)光酸发生器;其中
树脂(A)的存在比例为20至75重量%,基于
树脂组合物的整体
树脂组分的量;其中组分(D)的存在比例为0.5 至 2.5 重量份(基于 100 重量份的整体
树脂组分);该
树脂组合物不含溶剂组分,在 25°C 环境中的粘度为 0.5 至 25 Pa-s。因此,光固化
树脂组合物在固化状态下具有更高的透明度和折射率,即使不添加具有醇羟基的化合物,也具有优异的耐热性和可操作性。光固化
树脂组合物适合用作光学镜片材料和粘合光学元件的粘合剂材料。