Patent ID: 8378051
Filing Date: 2013-02-19
Classification: C08G,C08L,G02B

Abstract:
1. A silicone resin lens obtained by molding and curing a silicon resin composition into a lens, wherein the lens has a refractive index at 400 nm of 1.5 or more, a ratio of a refractive index at 400 nm to a refractive index at 596 nm of 1.01 or more, an Abbe's number of 45 or more, and an absolute value of a differential of refractive indexes against temperatures, dn/dT, of 250×10 −6 /degrees C. or less, wherein the silicon resin composition comprises (A) an alkenyl group-containing organopolysiloxane represented by the following average compositional formula (1): wherein R (B) an organohydrogenpolysiloxane having at least two hydrogen atoms each bonded to a silicon atom in an amount such that the amount of the hydrogen atoms is 0.75 to 2.0 equivalents per equivalent of the alkenyl groups of component (A), and (C) a catalytic amount of a curing catalyst.