Patent application number | Description | Published |
20090103421 | Object Lens Actuator, Optical Pickup and Optical Disk Drive - The present invention provides an object lens actuator, an optical pickup, and an optical disk drive, which can increase the size of the object lens actuator driving a lens holder in the tangential tilt direction, and drive and control the lens holder with a small amount of drive current. | 04-23-2009 |
20100067354 | OPTICAL PICKUP AND AN OPTICAL DISC APPARATUS MOUNTING THE SAME THEREON - An optical pickup, mounting a lens actuator | 03-18-2010 |
20100149954 | OBJECTIVE LENS ACTUATOR, OPTICAL PICKUP AND OPTICAL DISC DRIVE - An objective lens actuator | 06-17-2010 |
20100322061 | OPTICAL PICKUP DEVICE - There is provided a low-cost and reliable optical pickup device, wherein an objective lens is in contact with an adhesive at least one or more portions and fixed to the adhesive and also the height of the adhesive for fixing the objective lens is higher than the surface of the objective lens or the end of the objective lens, thereby a sufficient adhesive strength is secured between the objective lens and a member to which the objective lens is adhered and further this adhesive serves also as a disc protector. | 12-23-2010 |
20110149713 | OBJECTIVE LENS DRIVE DEVICE AND OPTICAL PICKUP - In an optical pickup equipped with a semiconductor laser, electro-optical components such as a lens, and an objective lens drive device, the objective lens drive device includes objective lenses, a holder holding the objective lenses, a focusing coil, and tracking coils. The focusing coil is wound in parallel to the optical surface of the objective lens, and formed in a parallelogram shape having inclined portions provided near the tracking coils. The two tracking coils are placed on diagonal portions of the lens holder. | 06-23-2011 |
20130086600 | OPTICAL PICKUP - An optical pickup includes an object lens; a moving part including the object lens and coils; rod-shaped support members disposed in a focusing direction, one end of each of the support members being attached to side surfaces of the moving part in a tracking direction; a fixing part for fixing the other end of each of the support members; a yoke including magnets; and gel holding parts, each of the gel holding parts including walls on both sides of the support members in the tracking direction, and the support members being disposed on both sides of the moving part in the tracking direction. Each of the gel holding parts includes an opening at one end on an optical disc side in the focusing direction and includes a cutout in the wall farther from the object lens in the tracking direction, the cutout extending from an edge of the opening. | 04-04-2013 |
20130163400 | Optical Pickup Device and Method for Manufacturing the Same - The invention provides an optical pickup device that ensures complete curing of adhesive when a tilt adjusting holder is glued to an objective lens holder. The optical pickup device comprises: a light source; an objective lens for focusing light emitted from the light source onto an optical storage medium; a tilt adjusting holder to which to secure the objective lens; and an objective lens holder to which to glue the tilt adjusting holder. The objective lens holder includes: adhesive joint sections for securing the tilt adjusting holder to the objective lens holder using an adhesive; a seat section on which the tilt adjusting holder abuts; and adhesive anti-overflow pockets, located between the adhesive joint sections and the seat section, for receiving the adhesive when the adhesive flows from the adhesive joint sections. | 06-27-2013 |
20140089952 | OPTICAL PICKUP - An optical pickup includes an objective lens which converges light on an optical disc, a lens holder to which the objective lens is attached, a focusing coil and a tracking coil wound around the lens holder, magnets arranged to face two side faces of the lens holder parallel to a radial direction of the optical disc, supporting members which support the lens holder, and supporting member fixation parts provided on two side faces of the lens holder orthogonal to the radial direction of the optical disc. The focusing coil is wound on parts of the lens holder on both sides of the lens holder in regard to the radial direction of the optical disc so that each portion of the focusing coil on each side is wound around a winding central axis extending in a direction parallel to the optical axis of the objective lens. | 03-27-2014 |