RESIN COMPOSITION FOR OPTICAL PARTS AND OPTICAL PARTS

摘要

A resin composition which comprises(A)a polyarylene sulfide,(B)an amorphous resin,(C)a non−fibrous inorganic filler and(D)a fibrous inorganic filler,wherein the volume proportion of the sum of(A)component and(B)component to the total of the resin composition is 30 to 70 vol %,the mass ratio of(A)component:(B)component is 0.65 to 0.95:0.35 to 0.05,and the volume proportion of(D)component to the total of the resin composition is 3 to 25 vol %;and optical parts prepared by forming the resin composition.The resin composition is highly useful as a forming material for an optical part which is reduced in the deviation due to temperature change of the optical axis of an optical system.