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Dynamic Information Storage Or Retrieval > With Servo Positioning Of Transducer Assembly Over Track Combined With Information Signal Processing > Optical Servo System > Optical Head Servo System Structure Optical Head Servo System StructureOptical Head Servo System Structure patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/31/08 - 20080025163 - Optical disc drive apparatus and servo control method for optical disc drive apparatus An optical disc drive apparatus may include an optical pickup that moves along a transportation shaft provided along a radial direction of an optical disc and picks up reflected light after emitting an optical beam via an objective lens to the optical disc; a drive section that controls the objective ... 12/06/07 - 20070280058 - Objective lens and method of manufacturing optical pickup apparatus An objective lens focusing light emitted from a light source onto an information surface of an optical disk, comprising: a first lens surface to be positioned on the light-source side; a second lens surface to be positioned on the optical-disc side; a first edge surface to be positioned on the ... 10/18/07 - 20070242572 - Optical integrated unit and optical pickup device including same An optical integrated unit includes a semiconductor laser (11), a polarized light beam splitter (14), a light receiving element (12), and a polarized light diffraction element (15) for diffracting an optical beam (20) and returning light. The polarized light diffraction element (15) is so provided as to receive the light ... 09/27/07 - 20070223324 - Optical pickup device A piezoelectric element of a driving device is arranged on the opposite side of the light source, when an optical pickup device is divided by a plane that includes an optical axis of an objective lens and perpendicularly intersects the axis line of a light flux entering a raising mirror, ... 08/30/07 - 20070201322 - Optical head, method of manufacturing the same and optical record playback equipment The space 31 is formed between each flat portion 15 of supports 2a and 2b, and the flat portion 11 of the through-holes 1a and 1b, and the space 32 is formed between each flat portion 16 of supports 2a and 2b, and the flat portion 12 of the through-holes ... 06/28/07 - 20070147196 - Optical information processing device An optical information processing device, configured to perform operations of reading and writing information on an optical disk, includes a light source configured to emit a laser beam, an image forming unit configured to converge the laser beam emitted by the light source on the optical disk, a first actuating ... 06/28/07 - 20070147195 - Lens driving device A lens driving device which can improve the positional accuracy of a moving lens while realizing a low component count and saving space. In the lens driving device provided in a lens barrel, a lens moves along the optical axis. A guide shaft is fixed to a lens barrel case ... 06/28/07 - 20070147193 - Pickup device driving apparatus, photographing device using the same, and monitoring camera apparatus A pickup device driving apparatus includes a base of which the position is fixed with respect to a lens part, a movable part, a pickup device which is attached to the movable part in a state that a pickup surface is perpendicular to an optical axial direction, a first support ... 06/07/07 - 20070127325 - Lens driving unit A lens driving unit includes a lens holder accommodating a lens or a group of lenses. A coil is disposed on a surface of the lens holder. The lens driving unit is provided with a magnet disposed at a position spaced from the coil by a predetermined distance to move ... 06/07/07 - 20070127324 - Optical disc apparatus An optical disc apparatus includes a main guide shaft and a subsidiary guide shaft disposed so as to guide movement of a sliding base which holds an optical pickup. The optical pickup enables information recording and reproducing operations on an optical disc. The main guide shaft and the subsidiary guide ... 05/31/07 - 20070121434 - Actuator for a scanning device for scanning optical discs The invention relates to an actuator for a scanning device for scanning optical discs which has a focus lens fixed in a lens holder and a damper base permanently connected to a support. The actuator is equipped with a coil and magnet arrangement, arranged on a support, for fine positioning ... 05/10/07 - 20070104043 - Objective lens driving device for optical recording media and device having the objective lens driving device The invention refers to a pickup for optical recording media having an actuator for focus and tracking control where, in order to avoid unwanted torque components being generated when magnets facing coils are unsymmetric, the magnetic flux in broad parts of the magnet is deliberately reduced by broadening, in that ... 02/22/07 - 20070041286 - Optical head An optical head, in which a spring stopper rib, as formed in a slide base, includes a post portion protruding from the upper face of the slide base, and a spring stopper portion for stopping a spring, and in which the spring receiving portion of an actuator has a recess ... 01/25/07 - 20070019514 - Lens driving and optical pickup device The lens driving device according to the present invention concentrates a light beam emitted by a light source and reflected by a mirror onto a recording layer of a recording medium by use of an objective lens and includes an objective lens holding section for holding the objective lens so ... 01/18/07 - 20070014205 - Objective lens holding device and usage thereof The present invention relates to an objective lens holding unit which allows for accurate information reading and writing. In order to make it possible for a read/write device including an objective lens with a small working distance, particularly such as a BD-compliant read/write device, to perform accurate information reading and ... 01/18/07 - 20070014204 - Optical head and optical pickup device An optical head comprises a laser holder retaining a laser diode, and a holder support retaining the laser holder, and irradiates an information storage medium with laser light from the laser diode to perform recording/reproduction of information. In this optical head, the laser holder is a frame structure that fixes ... 12/14/06 - 20060280060 - Objective-lens driving device A lens holder is configured by coupling an upper piece and a lower piece. First bobbin portions around which respective tracking coils are wound are provided in one of the upper and lower pieces, and second bobbin portions a round which respective focusing coils are wound are provided in the ... 12/14/06 - 20060280059 - Optical pickup device An embodiment includes an optical pickup device wherein a beam of light emitted from the light source is converted into parallel beams of light by the collimator lens and is incident on the objective lens at a first divergent angle through the divergent angle changing optical system to be converged ... 10/26/06 - 20060239138 - Optical pickup and optical storage device An optical pickup for an optical storage device includes a stem, a substrate mounted on the stem, and a laser diode mounted on the substrate. The substrate is integrally formed with an optical signal detector and an error signal detector for focusing error detection and tracking error detection. A cap ... 10/26/06 - 20060239137 - Optical pickup actuator and optical recording and/or reproducing apparatus An optical pickup actuator, including a lens holder movably installed on a base, and mounted with an objective lens to transmit an incident light to an optical information recording medium, and a magnetic circuit to independently drive the lens holder in a focusing direction, a tilting direction and a tracking ... 10/19/06 - 20060233068 - Optical pickup and optical storage device An optical pickup for an optical storage device includes a stem, a substrate mounted on the stem, and a laser diode mounted on the substrate. The substrate is integrally formed with an optical signal detector and an error signal detector for focusing error detection and tracking error detection. A cap ... 10/19/06 - 20060233067 - Optical pickup actuator and optical recording and/or reproducing apparatus having the same An optical pickup actuator independently drivable in focusing, tilting and tracking directions. The optical pickup includes a lens holder movably installed on a base, and mounted with an objective lens for transmitting an incident light to an optical information recording medium; and a magnetic circuit to independently driving the lens ... 09/07/06 - 20060198255 - Optical head and optical disc device provided therewith In an optical head according to the present invention, an act base on which an objective lens is arranged is formed in a rectangular shape with through holes formed in four corners thereof. A base on which a collimating lens is arranged has projections to engage with the through holes ... 08/31/06 - 20060193216 - Object lens drive device, and disc recording and/or reproducing apparatus The present invention is directed to an object lens drive device adapted for moving an object lens in a focus direction of optical axis direction and in a tracking direction perpendicular to the optical axis direction, and includes a fixed position provided in such a manner that a supporting shaft ... 08/31/06 - 20060193215 - Optical head and optical disk device An optical head includes a first laser diode configured to generate a laser beam with a wave length of λ1, a second laser diode configured to generate a laser beam with a shorter wave length of λ2 than the wave length λ1, a collimator lens arranged so that the laser ... 08/17/06 - 20060181970 - Optical pickup and optical disk device The present invention is directed to an optical pick-up adapted for moving an object lens (7) supported by a lens holder (2) in a focus direction in parallel to the optical axis direction thereof and in a tracking direction perpendicular to the focus direction, and for performing control of tilt ... 07/27/06 - 20060164936 - Optical disk reproducing device, object lens, protection member and optical disk reproducing method An optical disc reproducing apparatus capable of preventing a contact between an objective lens and an optical disc disposed very close to each other to eliminate the damage-caused functional failures of the objective lens and the optical disc, and permitting proper focus control and tracking control to ensure high-reliability data ... 07/06/06 - 20060146661 - Objective lens actuator An objective lens actuator is provided. An objective lens holder is movably located on a ferromagnetic yoke with corresponding to inner yokes thereof to hold an objective lens. Tracking coils and focusing coils are respectively located on different two opposite sides of the lens holder and the latter are surrounded ... 06/01/06 - 20060114770 - Disk drive with optical pickup unit In order to prevent dust and dirt from entering the inside of an optical pickup unit of a disk drive without use of a special dustproof cover member, the optical pickup unit has a frame slidably supported by guide shafts, which an internal space is formed in the frame to ... 06/01/06 - 20060114769 - Lens holding system, optical pick-up device, and recording/reproducing device In a lens holding system of the present invention, at least two lens protection sections protruding from a surface of a lens holding section are provided, which surface faces the optical recording medium, the lens protection sections sandwiching an objective lens therebetween. A distance between each of the lens protection ... 06/01/06 - 20060114768 - Laser irradiation apparatus There are disposed two homogenizers for controlling an irradiation energy density in the longitudinal direction of a laser light transformed into a linear one which is inputtted into the surface to be irradiated. Also, there is disposed one homogenizer for controlling an irradiation energy density in a width direction of ... 05/25/06 - 20060109757 - Automatic focusing apparatus, laser processing apparatus, and laser cutting apparatus At least one exemplary embodiment is directed to a laser processing apparatus that can use the shape of a plurality of reflected light fluxes to adjust the position of workpiece relative to an optical system, where the laser processing apparatus facilitates both the viewing of the workpiece and a focusing ... 05/18/06 - 20060104166 - Combination of lens and lens holder and optical pickup unit having the same This invention provides a combination of an optical element and a holder for holding the optical element and an optical pickup unit including the combination. The optical pickup unit used in an optical storage system includes a light source, a focus device, and an optical detector. The light source generates ... 05/18/06 - 20060104165 - Pickup head feeding apparatus An apparatus for feeding a pickup head in a radial direction of a disk includes a guiding device, a driving source, a feeding screw, a connecting base, and an elastic member. The guiding device slidingly engages with the pickup head and defines a moving direction of the pickup head. The ... 05/18/06 - 20060104164 - Effecting dynamic measurement of low mass devices A low mass device is disclosed. The low mass device includes a body member defining a surface and a retroreflective pattern formed in the surface of the body member. ... 04/27/06 - 20060087933 - Supporting mechanism for optical pickup head An optical disc apparatus includes a chassis, a pickup device, a guide shaft, a fixing base member, a holding member and an elastically deformable member. The pickup device is configured to perform writing and/or reading of information with respect to an optical disc. The guide shaft is configured to movably ... 04/27/06 - 20060087932 - Lens protector and optical pick-up The lens protector serving as a means for preventing a scratch of an objective lens and an optical disc of the optical pick-up in which a signal-recording surface of the optical disc is irradiated with light beams to read signals from the signal-recording layer and/or record signals on the signal-recording ... 04/27/06 - 20060087931 - Optical pickup To improve the reliability to an environmental temperature change of an optical pickup, an optical pickup 7 has a semiconductor laser 711 for generating a laser beam. An objective lens drive leads the laser beam to a predetermined position of a disk. The semiconductor laser and objective lens drive are ... 04/27/06 - 20060087930 - Optical disc apparatus An optical disc apparatus (1) comprising a supporting assembly (7), a spindle motor (9) having a magnetic motor stator (17), optical means for scanning an information surface of said optical disc mounted on the spindle and comprising a focusing lens assembly (29) having a movable focusing lens, a swing arm ... 04/27/06 - 20060087929 - Optical disk drive using one dimensional scanning A system for optical scanning along one line with fast random access and high optical resolution, composed of: a plurality of first lenslets (240) constructed for use with a selected media format (224), the plurality of lenslets (240) all being disposed in a single row and being spaced apart by ... 04/20/06 - 20060083121 - Driving device for objective lens and optical pick up using the same To reduce vibrations occurring in an objective lens driving apparatus there is provided an objective lens driving apparatus used in an optical pickup that reads/writes information from or onto an optical disk using an objective lens. The objective lens driving apparatus has a lens holder that holds an objective lens ... 04/13/06 - 20060077785 - Objective lens carrier structure for optical pickup head A lens-carrier structure, which is disposed between at least two magnetic generators of an optical pickup head, comprises an objective lens, a plate and a focusing coil. The plate comprises a top-face and a hole. The objective lens is disposed on the top-face and at a predetermined position corresponding to ... 04/13/06 - 20060077784 - Optical pickup and optical disk apparatus An optical pickup includes a first optical system for collecting first laser light emitted from a first laser light source onto a first disk, and guiding reflected light from the first disk to a photoreceptor; a second optical system for collecting second laser light emitted from a second laser light ... 04/13/06 - 20060077783 - Light-emission and reception module for optical pickup and optical pickup In a light-emission and reception module for use in an optical pickup, a polarization beam splitter transmits an outgoing laser beam from the laser-emitting element and reflects, as a reflected laser beam, a return laser beam reflected by the optical disc in a direction perpendicular to the outgoing laser beam. ... 04/13/06 - 20060077782 - Objective lens holder for an objective lens driving device capable of thinning an optical pickup unit An objective lens holder for use in an objective lens driving device of a symmetry type has an upper member and a lower member assembled with the lower member. The lower member has a pair of main bobbin portions for winding two tilting coils and two focusing coils. The pair ... 04/13/06 - 20060077781 - Objective lens driving device settled within a height limit of an optical pickup unit In an objective lens driving device of a symmetry type having an object lens, an objective lens holder for holding the objective lens, and a damper base apart from the objective lens holder in a tangential direction, a suspension member elastically supports the objective lens holder with respect to the ... 04/13/06 - 20060077780 - Optical pickup unit and optical disc drive having the same An optical pickup unit comprises an objective lens driving device including an objective lens holder, a damper base, and a yoke for forming a magnetic circuit together with coils. The optical pickup unit further comprises an optical base in which the objective lens driving device is assembled and a mirror ... 04/13/06 - 20060077779 - Optical pickup device with elastic member An optical pickup device with elastic member, the device comprises a driver, a gear, a rack, an optical head, a guide bar and an elastic member. The gear associated with the driver is rotated by it. The rack, whose back has at least a first fixed support, meshes and interlocks ... 04/06/06 - 20060072386 - Actuator apparatus for optical pickup having tilt control An actuator has a moving portion including an objective lens, an objective lens holding cylinder, a focus coil, and a tracking coil, a first magnetic circuit for driving the focus coil, a second magnetic circuit for driving the tracking coil, and an elastic member for supporting the moving portion. The ... 04/06/06 - 20060072385 - Thin-film coil, coil driving circuit and magnetic head A thin-film coil include a substrate and first and second spiral coils of bifilar winding. Each of the first and the second coils includes an outer circumferential end and an inner circumferential end. The outer circumferential ends of the first and the second spiral coils are insulated from each other ... 04/06/06 - 20060072384 - Optical disk device To accomplish the above-mentioned object, a dual-purpose drive source mechanism (62, 64, 65, 66, 67, 68) generates a driving force for a pickup drive mechanism (57a) and a turntable raising/lowering mechanism (51c, 15). The operation of switching a transmission path of the driving force of the dual-purpose drive source mechanism ... 04/06/06 - 20060072383 - Disc drive apparatus An optical disc drive apparatus (1) comprises: rotating means (4) for rotating an optical disc (2); a sledge (10) radially displaceable with respect to an apparatus frame (3); a platform (20) radially displaceable with respect to said sledge (10); an optical system (30) for scanning a disc, the optical system ... 02/09/06 - 20060028931 - Optical head device An optical head device includes a laser beam emitting element, a light receiving element, an optical system which guides an emitted light beam from the laser beam emitting element to the optical disk and guides the reflected light beam from the optical disk to the light receiving element, and a ... 02/09/06 - 20060028930 - Optical pickup calibrating apparatus in a disc player and a fabrication method of the same An optical pickup calibrating apparatus for calibrating the laser emitting direction of an optical pickup supported on a guiding rod is provided. The optical pickup calibrating apparatus has a base and a holder. The holder, which is pivotally assembled to the base, has a trench formed on a sidewall thereof ... 02/09/06 - 20060028929 - Autofocus actuator An aoutofocus actuator is provided with a yoke 30 that is constructed so as to receive a coil 20. The yoke 30 includes a plurality of permanent magnets 40 that are positioned so as to face the coil 20 with a space left therebetween. A ring-shaped magnetic member 50 is ... 02/09/06 - 20060028928 - Optical disk apparatus with objective lens protective unit The present invention provides an optical disk apparatus which has a cover to cover and uncover an objective lens provided in an optical pickup, thus preventing the objective lens from being contaminated with dust, etc. The optical disk apparatus includes an optical pickup conveying, a cover conveying body, and a ... 01/12/06 - 20060007800 - Rotary disk laser module A rotary disk module, having a rotary disk is interposed between a pair of heat sinks each spaced from the rotary disk by a gap. A motor is installed for driving the rotary disk to rotate. The gaps are filled with cooling medium such as helium, water or liquid nitrogen ... 01/12/06 - 20060007799 - Optical pickup device and manufacturing method thereof An optical pickup device having a lens through which light transmits, a holder to which the lens is mounted, a position adjusting member which is mounted on the holder, and a housing to which the holder is mounted has a structure to allow adjustment of a mounting position of a ... 12/29/05 - 20050286357 - Optical recording/reproducing apparatus, medium, and method and controlling apparatus, medium, and method therefor An optical recording/reproducing apparatus, medium, and method and a controlling apparatus, medium, and method thereof. The recording/reproducing apparatus includes an optical pickup actuator including a holder formed on a base, a blade connected to the holder with a plurality of elastic supporters, a pair of focus coils for operating the ... 12/29/05 - 20050286356 - Optical pickup actuator Provided is an optical pickup actuator. The optical pickup actuator includes: a lens holder for holding an object lens; a focusing coil disposed at the lens holder; a tracking coil disposed at the lens holder; a radial coil wound at a coil holder at which the focusing coil is wound; ... 12/29/05 - 20050286355 - Optical pickup, apparatus and method for assembling lens An optical pickup and a lens assembling apparatus and a method thereof are provided. The optical pickup includes a plurality of objective lenses and a lens holder. The lens holder has a plurality of installation holes into which the plurality of objective lenses are inserted. In the lens holder, a ... 12/29/05 - 20050286354 - Optical pick-up device For providing an optical pick-up device, in which can prevent sound noise, the optical pick-up device includes a moving base, actuator assembly, an elastic rod and a buffer sheet. The moving base can move freely in a radial direction of an optical disk. The actuator assembly mounted on the moving ... 12/22/05 - 20050281148 - Optical disk apparatus employing high-na objective lens Protecting member is provided on lens-holding member to protrude toward optical disk more than objective lens. Further protecting member is prevented from contact with cover layer, even when movable part is not driven by actuator and elastic supporting members are bent by gravity acting on movable part toward optical disk. ... 12/22/05 - 20050281147 - Optical pickup actuator, method of manufacturing the optical pickup actuator, and optical pickup employing the optical pickup actuator, and optical recording and/or reproducing apparatus employing the optical pickup An optical pickup actuator including a blade supported by a plurality of suspensions to be movable with respect to a base and a magnetic circuit to drive a movable part including the blade, a method of manufacturing the optical pickup actuator, an optical pickup employing the optical pickup actuator, and ... 12/22/05 - 20050281146 - Magnetic actuator A magnetic actuator. The magnetic actuator comprises a first magnet, a second magnet, a first yoke, and a first coil. The second magnet is arranged axially with respect to the first magnet with repulsion therebetween. The first yoke is disposed between the first magnet and the second magnet, and the ... 12/22/05 - 20050281145 - Optical pickup and optical disk apparatus A lensholder has one focus coil and two tracking coil. The lensholder has an accommodation recess portion accommodating an objective lens. A layer having thermal conductivity is provided between an inner peripheral surface of the lensholder and an outer circumferential surface of the objective lens and between a bottom wall ... 12/22/05 - 20050281144 - Objective lens driving apparatus and optical disk apparatus It is an object of this invention to increase the rigidity of a movable part and decrease its weight. An objective lens driving apparatus has an objective lens which focuses light on the recording surface of an optical disk. The objective lens is driven by focusing coils in directions approaching ... 12/22/05 - 20050281143 - Objective lens driving apparatus and optical disc apparatus The invention provides an objective lens driving apparatus in which an efficiency of a magnetic circuit is improved by making a magnetic flux density distribution of the objective lens driving apparatus close to symmetrical. An objective lens driving apparatus has an objective lens, a tracking coil driving the objective lens ... 12/22/05 - 20050281142 - Optical pickup device having heat radiation means and optical disk apparatus using the same An optical pickup device comprises a semiconductor laser that causes outgoing of laser beam used for reproduction and recording of information on an optical disk, and an objective lens that conducts the laser beam outgoing from the semiconductor laser to the optical disk. The objective lens is driven by a ... 12/15/05 - 20050276172 - Lens driving mechanism and image pickup device A lens driving mechanism eccentrically drives at least one lens or lens subunit, hereunder called a correcting lens, in a lens system constituting a taking lens unit in a plane perpendicular to an optical axis direction, and includes a movable frame holding the correcting lens, two coils fixed at a ... 12/15/05 - 20050276171 - Pickup device and recording medium drive unit The pickup device includes: a fixed portion 11, a movable portion 12 movable in a tracking direction and a focus direction; linear resilient members 12A through 13D (Translator's comment: correctly, linear resilient members 13A through 13D) for connecting the fixed portion 11 and the movable portion 12; a coil 21 ... 12/08/05 - 20050270915 - Disc drive apparatus, disc drive unit and optical pickup device The present invention provides a disc drive apparatus that can effectively prevent the part of the flexible printed circuit board that cannot be covered by the top cover from coming out to the outside through the aperture of the top cover when the flexible printed circuit board displaces its folded ... 12/08/05 - 20050270914 - Wiring layout structure for optical head device A fixture plate is fixed by a screw onto an optical housing of the optical head device at a portion corresponding to where a monitor signal path portion and an act signal path portion are arranged overlapping one another. The two signal path portions are portions of two types of ... 12/08/05 - 20050270913 - Method and apparatus for detecting the landing of optical pickup head The present invention discloses a method for detecting the landing of an optical pickup head in an optical disk drive, characterized in that the electric current of a sled motor of the optical pickup head is detected to determine whether or not the optical pickup head is parked on a ... 12/01/05 - 20050265142 - Biaxial actuator apparatus and a mehod for mounting and adjusting the biaxial actuator The apparatus and methods of the present invention provide for a biaxial actuator, an optical pickup device, and an information optical processing device, in which the biaxial actuator is favorably mounted using a single structure. The mounting structure includes first fastening portions protruding from a bottom plate affixed to a ... 12/01/05 - 20050265141 - Optical pick-up actuator and method, and reproducing and/or recording apparatus with same An actuator for an optical pick-up, including: a holder fixed to a base; a bobbin capable of accommodating a plurality of objective lenses for recording and/or reproducing information onto and/or from optical discs with different recording densities; a suspension for connecting the bobbin and the holder, and supporting the bobbin ... 12/01/05 - 20050265140 - Power and thermal management for a hard drive According to certain embodiments of the present invention, a data storage device is provided. The exemplary data storage device includes actuation mechanism control circuitry configured to selectively operate an actuation mechanism at first and second performance levels, wherein the first performance level accesses data from a data storage medium at ... 12/01/05 - 20050265139 - Light delivery technique for heat assisted magnetic recording head A suspension arm for an optical transducer comprises a load beam, a slider coupled to the load beam by a gimbal assembly and including an optical transducer positioned adjacent to an end of the slider facing a pivot point of the suspension arm, and an optical fiber for transmitting light ... 12/01/05 - 20050265138 - Optical disk drive, and a method of assembling it An optical disk drive comprises an optical pick-up unit (5) comprising a fixed part (7) with at least a light source, and a movable part (8) mounted on a guide (9) and comprising at least a mirror (13), a focusing lens (14), and lens-moving elements. The movable part is adapted ... 12/01/05 - 20050265137 - Disc drive apparatus A disc drive apparatus (1) comprises a sledge (10) radially displaceable with respect to an apparatus frame (3); a platform (20) radially displaceable with respect to said sledge (10); a controllable sledge actuator (11) for moving the sledge (10) radially with respect to said apparatus frame (3); a control unit ... 11/24/05 - 20050259527 - Optical component triaxial actuator and recording/reproducing apparatus using the same A first magnetic pole surface having N and S poles neighboring in a focus direction and a second magnetic pole surface having N and S poles neighboring in a tracking direction are formed on the same surface. A focus coil and a radial tilt coil are arranged to cross a ... 11/24/05 - 20050259526 - High sensitivity actuator for an optical pick-up head An actuator for an optical pick-up head performs high sensitivity of tracking and focusing. The sensitivity of the optical pick-up head is increased by changing the magnetic arrangement of a first permanent magnet and a second permanent magnet of an actuator, such that opposing direction of magnetic fields are provided ... 11/17/05 - 20050254358 - Heat radiating structure of a digital camera A heat radiating structure of a digital camera includes an optical system holder which holds an image-forming optical system; an image pickup device supported by the optical system holder; an outer casing which constitutes an external body of the digital camera which surrounds the optical system holder, the outer casing ... 11/17/05 - 20050254357 - Driving device for objective lens of optical pickup The present invention discloses an electromagnetic driving device for an object lens of an optical pickup. The electromagnetic driving device comprises an object lens, a lens bearing seat, a focusing coil, a tracking coil, an auxiliary magnetic device, a base, a plurality of elastomers, and a top cover. The object ... 11/10/05 - 20050249057 - Pickup guiding structure for optical disk drive The present invention relates to an optical pickup guiding structure for an optical disk drive. The structure of the present invention comprises a pickup base 30 with a pickup window 32 formed therein, and an optical pickup 34 that is provided in the pickup window 32 and includes at least ... 11/10/05 - 20050249056 - Vibration absorber system for an optical recording/reproducing apparatus A vibration absorber system is attached to one side of a chassis of a traverse module of an optical recording/reproducing apparatus. The vibration absorber system includes a vibration absorber for soaking up vibration generated in the optical recording/reproducing apparatus, and at least two elastic dampers for elastically attaching the vibration ... 11/10/05 - 20050249055 - Optical pickup device and optical disk device using it In an optical pickup device, heat conduction from a semiconductor laser to a pickup case is to be increased, thereby to prevent the semiconductor laser from deteriorating in performance, being reduced in durability and in committing erroneous actions, and to improve its reliability. An optical pickup device comprises a semiconductor ... 11/03/05 - 20050243662 - 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 tracking coil are ... 10/27/05 - 20050237872 - Mvc-003u method and system for multiple read/write heads for transferring date to/from a storage medium A system and method are described for transfer of data between a memory location and a portable storage, such as an optical disk, at high efficiency data transfer rates. Such transfer rates allow for quick download of large data files containing multimedia data onto an optical storage medium, including handling ... 10/27/05 - 20050237871 - Laser/detector device for optical recording with adjustable detector position An assembly structure and method for an integrated laser/detector device with a mirror at an angle to redirect the laser beam to a medium. The mirror is not attached to the circuit board with the laser/detector as in the prior art, but rather is mounted separately in the housing immediately ... 09/08/05 - 20050195702 - Yoke plate for optical pick-up actuator, combination structure of yoke plate with suspension pcb, and optical pick-up actuator including the same Disclosed herein are a yoke plate for optical pick-up actuators, a combination structure of a suspension PCB and a yoke plate, and an optical pick-up actuator comprising the structure. The yoke plate comprises a rear yoke at the distal end of one side of the yoke plate, and the rear ... 08/18/05 - 20050180273 - Controlling optical pickup of optical disk drive by detecting change of sampling signals taken from a motor drive signal A drive current or a drive voltage is controlled corresponding to change of load by sampling the drive current or drive voltage of a motor to move an optical pickup and then detecting change of the sampling signal as change of the optical pickup when it is moved. Moreover, change ... 08/18/05 - 20050180272 - Small form-factor optical data storage device A small form factor optical disk drive is provided. An OPU is mounted on a sled such that an optical path length to the optical media falls substantially between coherence function maxima. ... 07/21/05 - 20050157610 - Optical pickup device and recording and/or reproducing device This device has an optical pickup section, a first rack portion provided on the optical pickup section, a slide member having an opening/closing portion for opening/closing a facing surface of the objective lens to the optical disc and a second rack portion provided to be slidable on the first rack ... 07/21/05 - 20050157609 - Optical pickup device and recording and/or reproducing device This device has an optical pickup section, a first rack portion provided on the optical pickup section, a slide member having an opening/closing portion for opening/closing a facing surface of the objective lens to the optical disc and a second rack portion provided to be slidable on the first rack ... 07/21/05 - 20050157608 - Optical disk apparatus and optical pickup device equipped with spherical aberration mechanism The present invention provides an optical disk apparatus and an optical pickup which are of a thin type and capable of correcting spherical aberration, including: a semiconductor laser for emitting light; an objective lens for condensing the light from the semiconductor laser on a recording layer through a light transmission ... 07/14/05 - 20050152238 - Optical writing and reading device An optical writing and reading device includes: a base; a main shaft holder fixed to the base; a main shaft supported by the main shaft holder; a pickup base supported by and moving along the main shaft; an optical pick-up actuator formed at the pickup base; an optical system for ... 07/14/05 - 20050152237 - Optical pickup device capable of correcting spherical aberration A mirror actuator includes a piezoelectric element having a thickness in a direction perpendicular to a surface of the mirror, and a circular surface bonded to a circular rear surface of the mirror such that the center of the circular surface of the piezoelectric element and that of the circular ... 07/07/05 - 20050146998 - Optical pickup device capable of correcting spherical aberration A mirror actuator includes a piezoelectric element bonded at a circular surface to a rear surface of a circular mirror such that the circular surface's center matches that of the rear, circular surface of the mirror. The piezoelectric element receives a potential to cause its bonded circular surface to expand/contract ... 06/30/05 - 20050141357 - Optical disc apparatus The invention provides an optical disc apparatus having a dynamic damper mechanism which does not use any part for exclusive use for absorbing a shock of an optical pickup. The optical disc apparatus is provided with a chassis attached to a base chassis via a first elastic body, shafts provided ... 06/09/05 - 20050122854 - Optical pickup device An optical pickup device is applied to DVD recorders and includes a beam expander unit. A drive coil wound around a lens holder within the beam expander unit, is located in a magnetic field formed by a magnet. When an electric current is passed through the drive coil, the drive ... ### FreshPatents.com Support - Terms & Conditions |