Patent ID: 7877763

Claim:
A lens drive apparatus for use in an optical pick-up apparatus, in which a bending mirror reflects an incident light flux from a light source and an objective lens converges the reflected light flux onto an optical disc through an objective, lens, the lens drive apparatus comprising: (a) a base; (b) a holder which holds the objective lens, being capable of moving with respect to the base; (c) a pair of focusing coils provided to interpose the objective lens held by the holder, the focusing coils being provided on two opposing sides with respect to an optical axis of the objective lens; and (d) a pair of magnets attached to the base to face the pair of focusing coils, respectively, wherein the holder includes: a first plurality of side surfaces opposing the pair of magnets and facing the incident light flux from the light source; and a second plurality of side surfaces facing the incident light flux from the light source, the incident light flux passing through at least one of the second plurality of side surfaces, and wherein at least one of the first plurality of side surfaces is disposed in a position closer to the optical axis of the objective lens than the second plurality of side surfaces.