Patent ID: 6449000
Filing Date: 2002-09-10
Classification: G02B

Abstract:
A deflection scanning apparatus comprising:a deflector for deflecting a light beam; a rotor to which said deflector is mounted, said rotor having a first balance weight setting recess portion and a second balance weight setting recess portion; driving means for rotating said rotor; and a balance weight which is set in at least one of the first and second recess portions, wherein said first and second balance weight setting recess portions face toward one direction and said balance weight comprises an ultraviolet-curing adhesive and is set in each of the first and second balance weight setting recess portions such that said balance weight in each of the recess portions can be cured by irradiation of ultraviolet rays from the one direction, and each of the first and second recess portions comprises an annular groove provided concentrically with respect to a rotational center of said rotor.