Abstract: An audio visual device includes a drive circuit and a rotatable body configured to be driven by the drive circuit and configured to change a playback point of a sound signal representative of a series of sounds in accordance with a rotation of the rotatable body. The rotatable body configured to change the playback point of the sound signal is further configured to display an image.

Abstract: Apparatus, systems and methods for use in imparting linear tonearm tracking for a record player are provided. The systems can include a joint member having three separate movable connections to a tonearm, guiding slot and slidable pivot base, wherein a rear pivot location of the tonearm is on the slidable pivot base. A movement of the tonearm can cause the joint member to adjust a position of the slidable pivot base, as a function of a configuration of the guiding slot, and this combination of interactions is combined to impart substantial linear tracking for the tonearm.

Abstract: An oscillation-preventing member for a stylus-tip protector is provided with a base member and a pair of leg parts integrally formed by employing a flexible sheet material. The pair of leg parts is bent at the same angle and in the same direction with respect to the base member. This oscillation-preventing member is mounted on a cartridge body, sandwiching a cartridge case from both outer sides with the pair of leg parts to prevent oscillation of a stylus-tip protector by bringing the base member into contact with part of the stylus-tip protector. This structure allows to provide an oscillation-preventing member for a stylus-tip protector, being attached/detached easily, manufactured at low costs, and configured to reliably prevent oscillation of a stylus-tip protector according to an impact.

Abstract: This invention is provides a means of playing LP records with minimal distortion. Low distortion is achieved by eliminating tracking error normally associated with pickup cartridges mounted to pivoting tone arms. This invention discloses a tone arm that constrains the motion of the stylus to straight radial path, mimicking the cutting path of the record lathe, supported on parallel rails by free rolling spherical bearings. Unlike many previous linear tracking tone arms, this invention does not rely on air pressure or servo motor mechanisms. The use of free rolling bearings or axles between parallel tracks fashioned from rails, rods or tubes, eliminates all sources of lateral friction other than pure static and rolling friction of the balls on the rails, rods or tubes. In the preferred embodiment, the fixed rods or tubes are driven synchronously, thereby eliminating static friction of the supporting rolling balls.

Abstract: A fixing structure of an optical component is composed of a device chassis; a holder holding an optical component; first and second plate parts for joint to the device chassis and a connecting part of both the plate parts are formed in the holder; a plurality of joint holes are formed in the second plate part; a U-groove into which the connecting part of the holder is fitted and a plurality of through-holes are formed in the device chassis; and an adhesive that is extended in a circular columnar shape and is made by inserting the holder into the U-groove of the device chassis, and applying a UV-curing adhesive in such a manner that the UV-curing adhesive is bonded to the first plate part of the holder and is continuous to the inside of the joint hole via the inside of the through-hole, and radiating UV light along the through-hole.

Abstract: A laser holder holds a semiconductor laser that has a metal frame part in which a semiconductor laser chip is mounted on one surface, and a resin part provided so as to surround the semiconductor laser chip. The laser holder is provided with an insertion part into which the semiconductor laser is inserted. The insertion part is provided with an aperture part that allows the resin part of the semiconductor laser inserted into the insertion part to be pushed from the exterior, and a wall surface part against which a reverse surface of the one surface of the metal frame part is pressed in a case where the resin part is pushed from the exterior.

Abstract: Provided is an optical pickup device capable of preventing a soldering work from physically damaging any part of a housing of the optical pickup device. In the optical pickup device to be provided, a circuit board fixed to an LD holder and a circuit board covering a housing from below are connected via a solder joint. An inner-side part of an upper-end portion of an external sidewall of the housing located near the connecting position is cut away to form a cut surface. When a soldering iron is used to form the solder joint to connect the two circuit boards, the cut surface prevents the soldering iron from touching the external sidewall and thereby preventing this part of the external sidewall from being damaged by the soldering iron.

Abstract: In an objective lens actuator of an optical disk drive and the like, variations in the fixed end positions of wires serving as suspensions are reduced and tilt characteristics are improved. Terminal plates 20 fixed to a lens holder are tilted relative to wires 13 for supporting the lens holder with elasticity, and are soldered at the edges of the terminal plates 20, so that variations in the fixed end positions of the wires 13 are reduced.

Abstract: A locking media pusher is coupled to a servo controlled stage and includes a protruding probe and a locking mechanism. The stage moves forward and backward along a base toward and away from a storage medium. If an eccentricity of a track on the storage medium exceeds a threshold, the storage medium is rotated to an orientation where the greatest eccentricity is directed toward the media pusher. The media pusher is moved toward the storage medium until a probe extending from the media pusher contacts the storage medium. The probe is locked within the media pusher. The stage and attached media pusher are retracted from the storage medium and the storage medium is unlocked. The magnitude of retraction of the stage is recorded. The stage is moved toward the storage medium a distance corresponding to the probe contact position plus the eccentricity magnitude to correct the eccentricity.

Abstract: A disk drive for driving a disk is disclosed, which includes: a driving unit configured to provide a driving force onto the disk, a main circuit pattern electrically connected with the driving unit, a sensor unit configured to sense a rotation speed of the disk, a first board supporting the sensor unit, a second board supporting the first board, and a base plate supporting the second board and the driving unit. One of the first board and the second board can be a flexible board electrically connecting the sensor unit with the main circuit pattern, and the other of the first board and the second board can be a rigid board. This disk drive can be utilized to ensure the distance between the sensor unit and the disk required for a rotation sensor to measure the rotation speed of the disk.

Abstract: A pre-coated metal sheet for slot-in drive cases which has a metal sheet; chemical conversion coatings formed on both sides of the metal sheet; and a coating film formed on one of the chemical conversion coatings and containing at least one base resin selected from a polyester-series resin, an epoxy-series resin and an acrylic-series resin, at least one resin beads selected from nylon-series resin beads, fluorine-series resin beads and urethane-series resin beads, and at least one lubricant a3 selected from carnauba wax, polyethylene wax and microcrystalline wax. The coating film has a surface having an arithmetical mean deviation of the assessed profile Ra of 0.3 to 4.5 ?m and a mean width of the profile elements, RSm, of 105 to 280 ?m, and the ratio of mean particle diameter of the resin beads to coating film layer thickness of the coating film is in the range of 2.0 to 3.0.

Abstract: An optical pickup device 50 comprising a laser diode 1, a photo detector 2, a housing 3 having an optical system for guiding light from the laser diode 1 to an optical disk and guiding light reflected on the optical disk to the photo detector, a wiring 5 to supply current to the laser diode 1, and a metallic cover 9 provided outside of the housing 3, wherein the laser diode 1 is bonded to the housing 3 by adhesive, a metallic member 10 is mounted on the surface of the laser diode 1 by connecting thermally, and the metallic member 10 is thermally connected to the cover 9 by solder.

Abstract: An optical disk device of the present application includes: a turntable 30 including plural induction grooves 31a to 31h as concave portions radially extending from vicinity of a center of the turntable 30 and having open portions in an outer periphery of the turntable 30 and plural through-holes 32a to 32h penetrating bottom faces 33a to 33h on the vicinity of the center side of the plural induction grooves 31a to 31h and a top face of the turntable 30; and an outer rotor type spindle motor 35 provided with plural fins 36a to 36h as convex portions on a rotor on a side face thereof. The optical disk device of the present application utilizes an airflow generated by rotation of the rotor of the spindle motor 35 and the turntable 30 in conjunction therewith as a dust removing wind for removing dust attaching to an objective lens side area.

Abstract: A holding member provided with a coil comprising a proximity facilitating portion capable of bringing the coil closer to a magnetic member facing the coil.

Abstract: The optical pickup includes two objective lenses, and an objective lens holder that holds the two objective lenses. The objective lens holder has two fixture holes that pass through from the lower surface to the upper surface to which the two objective lenses are attached at an upper portion with space between them. The fixture hole is provided with a fixed lens supporting portion and two movable lens supporting portions for supporting the objective lens and adjusting tilt degree thereof. The movable lens supporting portion includes a through hole that passes through to the upper portion of the fixture hole and a column member that is inserted in the through hole in a slidable manner.

Abstract: An optical pickup according to the present invention includes an integrated circuit element (LDD) 5 for driving first, second, and third semiconductor lasers 3, 4, and 5. The LDD 50 is shaped so as to have a rectangular principal face surrounded by one side, with a plurality of input/output pins being arranged along each side. The plurality of input/output pins include a first pin group connected to a blue-violet laser 5 whose oscillation wavelength is the shortest, a second pin group connected to a red laser 4, and a third pin group connected to an infrared laser 3. The wiring structure of the optical pickup includes a first transmission line 41 for connecting the first pin group to the blue-violet laser 5, a second transmission line 33 for connecting the second pin group to the red laser 4, and a third transmission line 31 for connecting the third pin group to the infrared laser 3, where the first transmission line 41 is shorter than both the second and third transmission lines 31 and 33.

Abstract: 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 direction, respectively.

Abstract: An optical actuator is disclosed. The optical actuator includes a seat bearing the optical element, a yoke comprising an end, a suspension system comprising at least one spring sheet connecting the seat and the end, and a driving device moving the seat relative to the yoke. The spring sheet constrains the movement of the seat. The spring sheet includes an inner connecting portion connected to the seat, an outer connecting portion surrounding the inner connecting portion and connected to the end, and a spring structure disposed between the inner and outer connecting portions and connecting the inner and outer connecting portions.

Abstract: An optical pickup includes a light emitting component, an optical component and a base component. The light emitting component has a laser diode, a package and a holder. The package has a positioning recess formed in an outer peripheral face of the package. The holder holds the package in a fitting hole of the holder. The holder has a protrusion component that is formed in an inner peripheral face of the fitting hole of the holder and is fitted to the positioning recess of the package, and a guide component that extends from the protrusion component by a first specific height beyond an end face of the holder. The protrusion component has a width in a peripheral direction of the fitting hole that is at least equal to a width of the positioning recess of the package in a peripheral direction of the package.

Abstract: An optical head device includes a lens holder, a wire support body which supports the lens holder through a plurality of wires, and a plate-like member on which the wire support body is mounted. The plate-like member includes a bottom plate part on which the wire support body is mounted and a rising part raised from the bottom plate part so as to face with a gap to a side face of the wire support body. The wire support body is subjected to surface bonding to the rising part with a first adhesive which is disposed within the gap and mounted on the plate-like member.

Abstract: An apparatus for accessing storage media, having an actuator base and an actuator carrier, where for compact design and low material cost, an elastic connection pressing the actuator carrier against the actuator base is a straight piece of spring wire.

Abstract: 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 is projected, a movable portion comprised of an object lens, and a bobbin adapted so that the object lens is attached and a hole through the supporting shaft is inserted is formed, the bobbin being supported movably along the supporting shaft and rotatably with the supporting shaft being as center, a drive portion including a magnet portion provided at either one of the fixed potion and the movable portion, and a coil portion provided at the other portion to move the movable portion along the supporting shaft to thereby move the object lens in the focus direction, and to rotate the bobbin with the supporting shaft being as center to thereby move the object lens in the tracking direction, and supporting means includi

Abstract: An optical pickup device includes a lens holder having an objective lens focusing a light beam onto a signal recording surface of a rotated optical disc and being movable in a focusing direction in parallel with the optical axis of the objective lens and in a tracking direction perpendicular to the optical axis of the objective lens; a support body supporting the lens holder movably in the focusing direction and the tracking direction; and an elastic support member supporting the support body to a base and including a pair of support legs that are inclined to expand the space between the support legs from one ends supporting the support body toward the other and include a plurality of support pieces formed from the one ends toward the other. The support pieces are formed by forming roughly circular, roughly elliptic, or roughly rectangular cut-outs on the support legs.

Abstract: An optical pickup includes a radiating plate made to abut against a rear surface of a laser diode by positioning an engaging hole provided penetratingly in a central portion of the radiating plate concentrically with the laser diode. Slits are formed in the radiating plate to form a pair of tongues in the manner of point symmetry about an axis of the engaging hole. Screw insertion portions formed in the respective tongues are communicates with the slits. As screws are passed through the screw inserting portions and are screwed in, the radiating plate is secured to the base. When the screws are screwed in, the axis is positioned on a phantom line connecting points of application of force generated at proximal end portions of the tongues. Distances from the axis to the respective points of application of force are set to be substantially identical.

Abstract: An optical pickup unit (OPU) includes a moveable structure that is moved by a voice coil motor component in response to an input signal. The moveable structure includes a pattern that is moved corresponding to the input signal. An encoder reads the pattern to generate an output signal that corresponds to pattern movement as the input signal is applied over a period of time. A controller calculates a calibration factor relating the pattern movement to the input signal.

Abstract: The present invention is directed to an object lens drive device adapted for moving an object lens (21) in a focus direction of optical axis direction and in a tracking direction perpendicular to the optical axis direction, and comprises a fixed portion (10) provided in such a manner that a supporting shaft (14) is projected, a movable portion (11) comprised of an object lens (21), and a bobbin (16) adapted so that the object lens (21) is attached and a hole (18) through the supporting shaft is inserted is formed, the bobbin (18) being supported movably along the supporting shaft and rotatably with the supporting shaft being as center, a drive portion including a magnet portion provided at either one of the fixed portion and the movable portion, and a coil portion (22) provided at the other portion to move the movable portion along the supporting shaft to thereby move the object lens in the focus direction, and to rotate the bobbin with the supporting shaft being as center to thereby move the object lens in t

Abstract: An optical pickup has a pair of left and right leg portions formed integrally at both side edge portions of a rear end portion of a resilient plate. The leg portions extend forwardly along a horizontal longitudinal direction. A pair of fixing holes are penetratingly provided in the respective leg portions on a transverse phantom line passing through a central portion of the resilient plate and extending in a horizontal transverse direction and at positions spaced apart an equal interval from a longitudinal phantom line passing through the central portion of the resilient plate and extending in the horizontal longitudinal direction. A pair of fixing screws are screwed into a pair of threaded holes in a mounting surface of a base through the fixing holes, thereby fixing the leg portions to the mounting surface.

Abstract: An optical pickup has a support pedestal integrally formed at a rear end portion of a mounting surface of a base. A pair of left and right leg portions extend forwardly from both side edge portions of a rear end portion of a resilient plate. A fixing hole is penetratingly provided in each of the leg portions on a phantom line passing through a central axis of a photodiode and extending in a horizontal transverse direction. Each fixing screw is screwed into a threaded hole in the mounting surface through each fixing hole, so as to press the rear end portion of the resilient plate against the support pedestal.

Abstract: An object lens driving device comprises a movable unit which supports an object lens and is movably supported by a fixed unit, a first mechanism which has a first magnet affixed to a fixed unit and a first coil affixed to a movable unit, and drives the movable unit in a predetermined direction by supplying electricity to the first coil, and a second mechanism which has a second coil affixed to a fixed unit and a second magnet affixed to a movable unit, and drives the movable unit in a direction different from that of the first mechanism by supplying electricity to the second coil, wherein the first and second magnets are arranged so that their polarities have the same orientation.

Abstract: An optical pick-up device that records and/or reproduces information on an optical information recording medium, through the use of holography, can prevent deterioration of recording and reproduction accuracy due to vibrations from exterior or fluctuations in the relative positional relationship with the recording medium. The optical pick-up device includes a pick-up body and a position adjusting device. The position adjusting device changes the position of the pick-up body in a direction perpendicular to a surface of the recording medium, in a direction parallel to the surface of the recording medium, and in such a direction as to change the inclination of the pick-up body with respect to the surface of the recording medium.

Abstract: An optical pickup device including a slider on which an objective lens is mounted and which is elastically movably supported by a support member, an air bearing member provided in the slider so that a lifting force pushes the slider away from the disk according to air flow generated during rotation of the disc, and an actuator to change the position of the objective lens mounted on the slider in a focus direction relative to the disc. In the optical pickup device, the slider is lifted from a disk using a lifting force acting on the air bearing member and simultaneously the position of an objective lens is adjusted by a piezoelectric device to perform focus control. Therefore, collision between a disk and an objective lens is avoided, and a focal position is effectively controlled just by changing only the position of the objective lens, thereby increasing the reliability of a recording and/or reproducing operation.