Patent ID: 6075659
Filing Date: 2000-06-13
Classification: B29C,G11B

Abstract:
A method of manufacturing an optical pickup apparatus, comprising:a step of manufacturing an objective lens drive unit; andan assembly step of fixing, on a optical base, at least the objective lens drive unit, a light source, and an optical system for leading the light fluxes from the light source to the objective lens drive unit,wherein said step of manufacturing an objective lens drive unit comprises:a first molding step, wherein a tracking leaf spring having one end coupled to a first coupling member is arranged, with said one end located in a first cavity provided in a molding die, and other end located in a second cavity provided in a wall for holding the tracking leaf spring, and resin is filled in the first and second cavities, thereby forming a first leaf spring support member having an intermediate member located at said one end of the tracking leaf spring;a first separation step of separating said one end of the tracking leaf spring and the first coupling member from each other;a second molding step, wherein at least two sets of focusing leaf springs are connected with second coupling members, each focusing leaf spring having one end coupled to one second coupling member and located in a third cavity and the other end located in a fourth cavity, and resin is filled in the third and fourth cavities, thereby securing each focussing leaf spring to the intermediate member, said focusing leaf springs being able to swing in a direction which crosses a direction in which the tracking leaf spring is able to swing, said intermediate member being provided between any two focal leaf springs that oppose each other; anda second separation step of separating said one end of each focusing leaf spring from the second coupling member.