Patent ID: 7315490

Claim:
An optical pickup apparatus for recording or reproducing data by irradiating a recording surface of an optical disk with laser light, comprising: a first lens which can correct a spherical aberration of laser light by being displaced in the direction of the optical axis; a lens supporting unit which supports one side of a lens holder supporting the first lens with a plurality of plate springs such that the lens holder can be displaced in the direction of the optical axis; a lens driving unit which applies a driving force to the lens holder utilizing an electromagnetic force; and an actuator which allows a plunger or a plate spring to be abutted and spaced on and from a surface of the one side of the lens holder, with an elastic member interposed therebetween, in a position in the middle of a plurality of connecting regions where the plate springs are respectively connected, wherein the plunger or the plate spring is put into abutment on the lens holder by a force exerted by a spring when the actuator is not energized and wherein the plunger is spaced from the lens holder when the actuator or the plate spring is energized.