Abstract: Provided is an actuator, an optical pickup, and a disc apparatus, with improved assembling workability and reduced manufacturing cost. The actuator of the optical pickup of the disc apparatus includes a movable part and a fixed part supporting the movable part in a movable manner. The movable part includes a case and a plurality of drive substrates having the same specification. The drive substrates are disposed at positions opposed to each other with respect to the case. Each drive substrate includes a winding member for driving the movable part and a wiring pattern for supplying current to the winding member. The wiring pattern includes a plurality of electrodes and a conductive path. The electrodes are disposed at positions opposed to each other with respect to the winding member. The conductive path is branched from one end of the winding member and is connected to the electrodes.

Abstract: An objective lens actuator includes a lens holder, a protector holder, and a protector. The lens holder in which the objective lens is provided has a face configured to oppose the disc. The protector holder is provided on the face of the lens holder. The protector is formed with an opening defined by a first inner face, a second inner face and a bottom face between the first inner face and the second inner face. The protector has a parallelepiped shape elongating in a first direction parallel to the disc. A part of the protector is inserted in the opening so as to contact the first inner face and the second inner face and to extend from the bottom face toward the disc. A first distance between an end of the protector in a second direction in which the protector extends toward the disc and the disc is shorter than a second distance between the objective lens and the disc. A gap is formed between an end of the opening and an end of the protector in the first direction.

Abstract: An optical head includes an objective lens held by a lens holder that is driven by a coil. The optical head includes: a base, including a mounting face having an opening portion; a substrate, operable to supply an electric power to the coil, and including a first portion; and a supporter, mounted on the mounting face, and including a second portion which faces the first portion and which is formed with a recessed portion that is connected with the opening portion.

Abstract: An objective lens actuator includes a lens holder, a protector holder, and a protector. The lens holder in which the objective lens is provided has a face configured to oppose the disc. The protector holder is provided on the face of the lens holder. The protector is formed with an opening defined by a first inner face, a second inner face and a bottom face between the first inner face and the second inner face. The protector has a parallelepiped shape elongating in a first direction parallel to the disc. A part of the protector is inserted in the opening so as to contact the first inner face and the second inner face and to extend from the bottom face toward the disc. A first distance between an end of the protector in a second direction in which the protector extends toward the disc and the disc is shorter than a second distance between the objective lens and the disc. A gap is formed between an end of the opening and an end of the protector in the first direction.

Abstract: An optical head includes an objective lens held by a lens holder that is driven by a coil. The optical head includes: a base, including a mounting face having an opening portion; a substrate, operable to supply an electric power to the coil, and including a first portion; and a supporter, mounted on the mounting face, and including a second portion which faces the first portion and which is formed with a recessed portion that is connected with the opening portion.

Abstract: Other end portion of a wire member 6 having elasticity one end portion of which is fixed to a fixed support member 2 is fixed to a movable lens holder 3 having an object lens 31. The wire member 6 is arranged to penetrate through a layer of a damper member 8 filled to a filling portion 7 of the fixed support member 2. The filling portion 7 is formed by a groove-like face 71 and an inner face 21a of a lid portion 21. The lid portion 21 is provided with a damper member filling port 22. A front and rear width c and an up and down width d of the damper member filling port 22 are narrower than a front and rear width a and an up and down width b of a groove shaped hollow portion.