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| Number | Title | Issue Date |
| 8116177 | Optical pickup and disc drive apparatus An objective-lens driving device includes a fixed block fixed to a moving base, a movable block having a lens holder configured to hold objective lenses, support springs configured to connect the fixed block and the movable block to each other, a focusing magnetic c... | 02/14/2012 |
| 7800985 | Optical pickup device An optical pickup device includes an objective lens (1) for focusing a light flux onto an information layer of a disk-shaped medium, an objective lens driving unit that drives the objective lens (1) in a focus servo direction and in a tracking servo di... | 09/21/2010 |
| 7649814 | Optical pickup An optical pickup has a lens that is resiliently supported in such a manner as to be displaceable in different directions by pairs of a first wire, a second wire, and a third wire which are attached to a fixing portion by attaching means. The optical pickup includes... | 01/19/2010 |
| 7570547 | Objective lens unit and optical pickup device An objective lens unit, includes: an objective lens for irradiating and converging laser light on an optical disc as an a light information recording medium; and a lens frame for retaining the objective lens, wherein the lens frame is structured so that at least a p... | 08/04/2009 |
| 7433278 | Objective lens drive having a variable stiffness fixing member In order to obtain a preferred recording/reproducing characteristic in an apparatus for optical disks having higher density, an objective lens drive is provided for driving an objective lens (1) in the optical axis direction, a direction perpendicular to the ... | 10/07/2008 |
| 7411751 | Optical pickup actuator Provided is an optical pickup actuator for writing/reading data in/from an optical storage medium. The optical pickup actuator includes a heat sink member or a heat conductive material for minimizing a bad influence of heat generated from a coil. ... | 08/12/2008 |
| 7411875 | Optical pickup Wires are inserted through a layer of a damper material filling a space provided in a fixed side support member. The space is formed by a groove shaped cavity, while the front part of the groove shaped cavity is provided with an opening surrounded by a groove shaped... | 08/12/2008 |
| 7397733 | Optical pickup A lens holder is provided with a focusing coil for urging the lens holder in a focusing direction and tracking coils for urging the lens holder in a tracking direction in cooperation with magnets. A magnet is disposed in a space where the focusing coil and the track... | 07/08/2008 |
| 7385885 | Magnetic circuit for moving a lens holder of an optical pick-up actuator Disclosed is a magnetic circuit operable in multiple axes in an optical pick-up actuator. The optical pick-up actuator includes: a lens holder for receiving and moving an object lens in a predetermined direction; a magnetic circuit having; a plurality of coils serie... | 06/10/2008 |
| 7352663 | High-sensitivity pickup actuator for disc drive A pickup actuator of a disc drive includes a pair of magnets, each facing a respective side of a bobbin and having a middle region with a first polarity and side regions with a second polarity opposite of the first polarity. The pickup actuator includes a plurality ... | 04/01/2008 |
| 7340756 | Optical pickup actuator having flux shielding magnet, optical pickup employing the optical pickup actuator and optical disc drive apparatus employing the optical pickup An optical pickup actuator having a flux shielding magnet, an optical pickup employing the optical pickup actuator, and an optical disc drive apparatus employing the optical pickup. The optical pickup actuator includes: a blade holding the objective lens; coils inst... | 03/04/2008 |
| 7336567 | Optical head device having an objective lens holder supported by composite wires and single wires An optical head device including a lens holder which holds an objective lens, six wires for supporting the lens holder and a holder support member which movably supports the lens holder by the six wires in a tracking, focusing and tilt direction. The six wires compr... | 02/26/2008 |
| 7337453 | Actuator employing a bobbin incorporating a winding coil and a manufacturing method thereof An optical pickup actuator and a method thereof includes a bobbin having a lens to scan a laser beam on a track of a disc, a winding coil moving the bobbin on the track in focusing and tracking directions, and an integrated circuit board used as the bobbin using a p... | 02/26/2008 |
| 7333404 | Actuator for mobile optical recording/reproducing apparatus An actuator to be used in a mobile optical recording/reproducing apparatus, the actuator including a holder; a movable member having an objective lens to focus an incident light; a support member positioned between the holder and the movable member, by which the mov... | 02/19/2008 |
| 7330405 | Objective lens driving device for optical head An objective lens driving device for an optical head has a lens holder including one or more tracking coils, one or more focusing coils, a plurality of wires which supply control currents to the tracking coils and the focusing coils and which support the lens holder... | 02/12/2008 |
| 7319564 | Objective lens driving apparatus In an objective lens driving apparatus which includes a lens holder (22) provided with a plurality of coils (23, 24) and swingably supported by a suspension wire (28), and a magnet (27) for supplying a driving force to the lens holder by ... | 01/15/2008 |
| 7317675 | Method of manufacturing optical head An integrated unit in which a light source and a light emitting diode are combined into one component is fixed to an optical bench. Then, relative position adjustment of an objective lens actuator is carried out with respect to the optical bench so that a desired de... | 01/08/2008 |
| 7312919 | Wide field of view and high speed scanning microscopy A wide field of view scanning microscope includes a light source, a light detector, optics, a scanning assembly, a translation system, and a data collection control and processing unit. The scanning assembly is constructed to provide from the light source a light be... | 12/25/2007 |
| 7305688 | Tilting movement optical pickup actuator and optical recording and/or reproducing apparatus using the same and method The optical pickup actuator includes a bobbin in which an objective lens is mounted, and suspension wires each having one end fixed on a side of the bobbin and the other end fixed to a holder disposed on a portion of a base to allow the bobbin to move with respect t... | 12/04/2007 |
| 7301861 | Coma aberration correcting apparatus for optical pickup A coma aberration correcting apparatus of an optical pickup includes an optical pickup main body having a photo diode, and an actuator mounted on an objective lens focusing a beam emitted from the photo diode onto a recording medium. The coma aberration correcting a... | 11/27/2007 |
| 7301802 | Circuit arrays having cells with combinations of transistors and nanotube switching elements Circuit arrays having cells with combinations of transistors and nanotube switches. Under one embodiment, a circuit array includes a plurality of cells arranged in an organization of words, each word having a plurality of bits. Each cell is responsive to a bit line,... | 11/27/2007 |
| 7295388 | Lens module A lens module using electromagnetic force to drive the focus-adjusting lens is disclosed. The lens module includes a base, two steel plates, four springs, a bottom plate, a lens holder, a coil, a lens, a top plate, two magnets, a magnet housing and a top cover. The ... | 11/13/2007 |
| 7292508 | Optical pick-up device with respective flush screws eccentrically positioned between an actuator base and a magnetic holder, together between a printed-circuit board and a support member An optical pick-up device having cheap and simple structure capable of precisely positioning members assembled upon an actuator base makes use of respective flush screw members for a magnet holder and for a printed-circuit board eccentrically positioned between an a... | 11/06/2007 |
| 7291942 | Autofocus actuator An autofocus actuator is provided with a yoke 320 that comprises an inner cylindrical portion 321 defining an insertion bore 35 through which a hollow body portion of a holder is adapted to be received and an outer cylindrical portion 322... | 11/06/2007 |
| 7289395 | Optical pickup device of micro optical disc drive An optical pickup device of a micro optical disc drive comprises: a tracking actuator hinge-coupled to a deck rotatably in a tracking direction; a tracking arm coupled to the tracking actuator; a focusing arm connected to the tracking arm rotatably in a focusing dir... | 10/30/2007 |
| 7286448 | Actuator for use in pickup device in reducing lens distortion Provided is an actuator for use in a pickup device, which can improve the quality of the pickup device by reducing a lens distortion even when the frequency of an electromagnetic drive rises beyond a servo band and causes resonance of a lens holder. An adhesive laye... | 10/23/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7285879 | Autofocus actuator An autofocus actuator 1 is provided with a yoke 300 that comprises an inner cylindrical portion 301 defining an insertion bore through which a hollow body portion of a holder is adapted to be received and an outer cylindrical portion 302 ... | 10/23/2007 |
| 7286449 | Optical pickup device An object of the present invention is to provide an optical pickup device with high reliability and reduced thickness, which can form an accurate beam spot without providing a thin film section in a lens holder and without influence of peripheral light of laser beam... | 10/23/2007 |
| 7280394 | Field effect devices having a drain controlled via a nanotube switching element Field effect devices having a drain controlled via a nanotube switching element. Under one embodiment, a field effect device includes a source region and a drain region of a first semiconductor type and a channel region disposed therebetween of a second semiconducto... | 10/09/2007 |
| 7280442 | Slim-type optical pick-up actuator for recording/reproducing device An optical type pick-up actuator can include a lens holder having an object lens for condensing a light on an optical disc mounted at one side thereof and activated in a predetermined direction, and a plurality of yokes and magnets facing one another. A focusing coi... | 10/09/2007 |
| 7280290 | Movable lens mechanism Disclosed is a lens mechanism made of a flexible support with a lens positioned on the support. A sensor is positioned below the lens so that it senses photons passing through the lens. At least one actuator is positioned around the lens such that a change in an ele... | 10/09/2007 |
| 7280457 | Optical disc with an improved compound lens The present invention relates to an optical pickup and a disc drive for preventing aberrations of laser light due to variations in temperature and humidity to ensure satisfactory characteristics of the laser light. A compound lens (14) is disposed in the opti... | 10/09/2007 |
| 7271511 | Autofocus actuator An autofocus actuator includes a cover which is provided with elastic tabs in addition to protrusions to which a stopper attached to a holder with a lens unit abuts when the holder is excessively displaced by, for example, a fall of an electronic equipment provided ... | 09/18/2007 |
| 7272840 | Objective lens driving apparatus used with an optical pickup An objective lens driving apparatus used with an optical pickup includes a base, a holder provided on the base, a blade on which an objective lens is mounted, an elastic support body elastically supporting the blade and which is capable of moving with respect to the... | 09/18/2007 |
| 7254098 | CD-DVD compatible optical pickup and optical recording and/or reproducing apparatus using the same A CD-DVD compatible optical pickup in which both on-axis and off-axis light form a circular light spot on a recording surface of an optical recording medium, and an optical recording and/or reproducing apparatus using the same. The CD-DVD compatible optical pickup i... | 08/07/2007 |
| 7251087 | Lens driving apparatus and image pick-up apparatus including the same An image entering from the left side of the figure passes through a correcting lens unit, and forms an image on an image pickup device on the right side of the figure. The correcting lens unit includes a cylindrical outer frame and a lens arranged therein, and at co... | 07/31/2007 |
| 7245563 | Optical pickup and disc drive apparatus An objective lens drive device (8) includes a supporting block (9), a movable block (10) for holding an objective lens (27), and supporting springs (22) for connecting the supporting block and the movable block. Elements of the sup... | 07/17/2007 |
| 7242645 | Optical disc player with focus pull-in function An optical disc player executes a focus pull-in operation while avoiding an inconvenience that an objective lens comes into contact with an optical disc, or the like. The objective lens is forcedly moved gradually from a position that is away from the surface of the... | 07/10/2007 |
| 7242644 | Optical disk drive, and a method of assembling it An optical disk drive includes an optical pick-up unit having a fixed part with at least a light source, and a movable part mounted on a guide. The movable part includes a mirror, a focusing lens, and lens-moving elements. The movable part is adapted to move a focus... | 07/10/2007 |
