Patent ID: 8524841

Claim:
A lens produced by curing a curable resin composition comprising an organic resin component and a metalloxane component, wherein the organic resin component includes a resin component having an Abbe number of 45 or more, and the metalloxane component has a metalloxane bond, wherein the organic resin component includes an organic resin component having a molecular weight of less than 700, and wherein the organic resin component having a molecular weight of less than 700 is a cationic curable component, and wherein the organic resin component having a molecular weight of less than 700 includes at least one compound of hydrogenated epoxy compounds and alicyclic epoxy compounds, and wherein the metalloxane component includes an organosiloxane compound represented by the following average compositional formula: R 1 a R 2 b Y e SiO d it the formula, R 1 represents an unsubstituted saturated aliphatic hydrocarbon group; R 2 represents at least one member selected from the group consisting of unsubstituted aryl groups and unsubstituted aralkyl groups; Y represents at least one member selected from the group consisting of RO groups, hydroxyl groups, halogen atoms, and a hydrogen atom; R represents at least one member selected from the group consisting of unsubstituted alkyl groups, unsubstituted cycloalkyl groups, unsubstituted aryl groups, and unsubstituted aralkyl groups; and a, b, c, and d satisfy 0≦a<3, 0≦b<3, 0≦c<3, 0<a+b+c<3, 0<a+b<3, and a+b+c+2d=4, and wherein the metalloxane component comprises an organosiloxane compound having a ladder structure; and wherein the resin composition contains a thermal-latent cationic curing catalyst in an amount of 0.01 to 10% by weigh on the solid content equivalent basis relative to 100% by weight of the resin composition; and wherein the resin composition contains at least one compound selected from the group consisting of aliphatic alcohols, carboxylic acids, carboxylic acid esters, and carboxylic acid salts, each containing 8 to 20 carbon atoms, as a demolding agent, and the content of the demolding agent is 0.1 to 5% by weight relative to 100% by weight of the resin composition.