Patent ID: 7933174

Claim:
An optical pickup, comprising: a semiconductor laser diode; electro-optic parts; and an objective lens actuator in a case, wherein said objective lens actuator comprises: a holder, which mounts an objective lens and a coil thereon, as being a movable part; a magnetic circuit part, which is made up with a magnet for magnetically driving said holder and a yoke; a plural number of elastic support parts which elastically supports said holder; and a support part, which supports other ends of said elastic support parts; wherein said support part has a part, which is cut open in parallel with the elastic support parts, between said elastic support parts, and has a through hole, in which said elastic support part passes through for each of said elastic support parts, and a hole is provided on said support part, so as to be inserted with a projection part, which is provided on said case; and said hole on said support part, which is to be inserted with said projection part of said case so as to establish a connection when said projection part is inserted, is larger than said projection part of said case, and a damper part is within a qap defined between said hole and said projection part.