OPTICAL LENS AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing optical lenses, which has high refractive indices and less striae with high productivity while preventing defects of dioptric power, and to provide the optical lenses having high refractive indices obtained by the method. SOLUTION: In the method for manufacturing the optical lens, an optical resin composition is thickened in viscosity so that viscosity at 20°C is 60 mPa s to less than 130 mPa s and the optical resin composition is injected into a cavity formed of a pair of glass molds for polymerization and curing. The optical resin composition includes: a compound (A) containing one or more structures expressed by formula (1) in a molecule; a sulfur containing inorganic compound (B); and a compound (C) having two or more mercapto groups in a molecule. In formula (1), R1represents a 1-10C hydrocarbon group, and R2, R3and R4each individually represents 1-10C a hydrocarbon group or hydrogen. COPYRIGHT: (C)2011,JPO&INPIT