Abstract: A skew adjusting apparatus is provided. The skew adjusting apparatus includes a plurality of skew support members provided on a base mold coupled to a base chassis to have an elastic force, and a plurality of skew screws configured to couple a motor plate that supports a spindle motor to the base mold.

Abstract: An optical pickup whose thickness is small and power consumption is low is provided, in which these advantages are achieved by increasing the driving force generated in the tilt coil in an objective lens driving apparatus and by making the thickness of the objective lens driving apparatus to be small. In an optical pickup including: an objective lens for condensing light onto an optical disc; a lens holder to which the objective lens has been attached; a focusing coli, a tracking coil, and a tilt coil, which have been attached to the lens holder; and a reflection mirror for reflecting light toward the optical axis of the objective lens, the tilt coil is made to have a shape in which the tilt coil is not brought into contact with the side of the reflection mirror, the side being near to the objective lens.

Abstract: A chassis is comprised of a resin material. A main shaft is attached to the chassis and extends in a first direction. A sheet metal frame is attached to the chassis and has an edge rail portion which extends in the first direction. The main shaft and the edge rail portion are adapted to guide the optical pickup in the first direction.

Abstract: The invention relates to a scanning device for optical discs, having an adjustable scanning unit tensioned against a carrier with a spring. For minimizing the structural space for the spring and avoiding separate fixing elements, the spring is formed as a dip spring, having an elongated spring limb and a bearing limb formed transversely with respect to the latter, which clip spring impinges at one of its ends with the bearing limb on the carrier with a contact force and is supported at its other end at a distance from the impingement location on the housing.

Abstract: The invention relates to a device for aligning a data carrier plate and its drive (11) with respect to a data transmission head in a data transmission device, in which data are read from or written into the data carrier plate by means of light rays, which data carrier plate is arranged with its drive on a carrier (10) which can be aligned with respect to the data transmission head and for this purpose comprises adjustment locations (12, 13, 14) which cooperate with adjustment members (15, 17) and thus define adjustment distances, wherein one of the adjustment members (15) acts on an associated adjustment location (12) on the carrier (10) so as to modify its adjustment, and the contact rods (2) comprise adjustment locations (13, 14) formed by surface deformations in contact regions (8), which adjustment locations (13, 14) cooperate in an adjustment-modifying manner with adjustment members (17) contacting said adjustment locations (13, 14).

Abstract: An apparatus for measuring a distance such as, for example, a fly height distance. An apparatus includes a slider having an air bearing surface and an optical condenser assembly spaced apart from the air bearing surface of the slider. The optical condenser assembly includes an optical cap and an optical substrate having a first surface and a second surface. The first surface is spaced apart from the optical cap and the second surface is spaced apart from the air bearing surface of the slider.

Abstract: An optical disc drive includes a locking part, a transmission-compensation mechanism, and a horizontal adjustment mechanism. The locking part is used to secure the first chucking portion and the second chucking portion of the disc chucker to the chucker seat. Therefore, the disc chucker keeps the optical disc stably. Besides, the transmission-compensation mechanism makes power of the driving motor be precisely transmitted to the optical pickup head. This effectively eliminates error or distortion during reading the optical disc. Furthermore, the horizontal adjustment mechanism is adopted to easily and efficiently regulate the angle between the optical disc and the optical pickup head.

Abstract: The BCA recording and reproducing apparatus performs recording of data onto an optical disc placed on a recording turntable, reproduction of data recorded on an optical disc placed on a reproducing turntable and ejection of an optical disc placed on an exchanging table and placement of a new optical disc on the exchanging table in parallel. A processing time is thereby shortened compared with the case of performing data recording, reproduction and exchange in series.

Abstract: A height adjustment device is provided that has a first chassis having an adjustment hole, an adjustment screw that stands when threadedly engaged with the adjustment hole in the first chassis, a second chassis locked by the adjustment screw so as to have a preset separation distance from the first chassis, and biasing means for biasing the first chassis and the second chassis in the direction of attaining separation therebetween. The adjustment screw has a tip portion for forming a female thread in the adjustment hole when rotated and inserted into the adjustment hole, a threaded portion having a male thread threadedly engaged with the female thread formed by the tip portion, and a head portion for locking the second chassis against the direction of biasing by the biasing means, in a nearly linear state.

Abstract: An optical pickup apparatus for an optical disc drive, including: a base; a turntable disposed above the base and which rotates an optical disc; an optical pickup unit which reciprocates with respect to the turntable in a radial direction of the turntable; a driving part which moves the optical pickup unit with respect to the turntable; and a guide unit having an auxiliary guide which supports an end of the optical pickup unit and which guides the optical pickup unit along a moving path. The optical pickup unit and the auxiliary guide are in line-contact with each other.

Abstract: A pickup head guide apparatus (1) includes two guide shafts (2), a fixing seat (3) with a first groove (30) therein to accommodate one end of a corresponding one of the guide shafts, three adjusting seats (4), and three corresponding adjusting devices (5). Each adjusting seat has a second groove therein to accommodate a corresponding one of the other three ends of the guide shafts. Each adjusting device includes an elastic element (52) positioned in the second groove, and a fixture element (51) which is adjustable from either of two opposite ends thereof. The elastic element and the fixture element engage with the corresponding guide shaft to accurately position the guide shaft.

Abstract: A disk drive structure with an adjustable bearing structure for guide bars therein. The disk drive includes a base, a spindle motor, a main guide bar located aside the spindle motor, a secondary guide bar located also aside the spindle motor but opposing to the main guide bar, an optical pickup head riding at the main guide bar and the secondary guide bar, and four bearing structures to sustain ends of the main guide bar and the secondary guide bar. The disk drive includes at least one of the four bearing structures is an adjustable bearing structure. The adjustable bearing structure includes a housing, a through hole, a spring arm, and a cam pillar pivotally mounted under the housing and sent into the through hole. By providing the cam pillar and the spring arm to hold the end of the respective guide bar, the position of the guide bar can be adjusted by turning the cam pillar.

Abstract: Within an optical disk apparatus of slot-in type, having a traversing mechanism portion 5, which mounts a disk motor 2, a turntable 2a and an optical pickup 3, etc., thereon, being attached on a chassis 4 building up a housing of the apparatus, and also an elevating mechanism for brining an optical disk to be chucked on the turntable when loading it, there is further provided height adjusting mechanisms or members 200a and 200b are provided at two (2) positions on a supporting axis line of the traversing mechanism and the position coming off that, thereby making the traversing mechanism adjustable with respect to the chassis, when the apparatus performs recording/reproducing operation thereon. Therefore, there is provided the optical disk apparatus, generating no abnormal sound due to contact of the optical disk with a part of housing of the apparatus when it is in the position for recording/reproducing operation, in spite of thinning in the thickness of the housing of the apparatus.

Abstract: An optical recording/reproducing apparatus includes an optical pickup recognizing information of an optical disc; a main shaft and a sub-shaft oppositely installed on a base plate, for supporting the optical pickup; a fixing portion for movably supporting one end of the main shaft; a support portion installed on the base plate at a certain distance from the fixing portion, for elastically supporting the other end of the main shaft; a prop portion installed on the base plate, for supporting a bottom middle surface of the main shaft; and a skew adjustment screw rotatably installed at the base plate, for upwardly pushing an end of the main shaft supported by the support portion.

Abstract: A disk drive structure with an adjustable bearing structure for guide bars therein is introduced. The disk drive includes a base, a spindle motor, a main guide bar located aside the spindle motor, a secondary guide bar located also aside the spindle motor but opposing to the main guide bar, an optical pickup head riding at the main guide bar and the secondary guide bar, and four bearing structures to sustain ends of the main guide bar and the secondary guide bar. The disk drive is characterized in that at least one of the four bearing structures is an adjustable bearing structure. The adjustable bearing structure includes a housing, a through hole, a spring arm, and a cam pillar pivotally mounted under the housing and sent into the through hole. By providing the cam pillar and the spring arm to hold the end of the respective guide bar, the position of the guide bar can be adjusted by turning the cam pillar.

Abstract: A disk apparatus of the present invention, in which a cartridge accommodating a disk-like recording medium and having an opening opened or closed by a shutter member is loaded to the disk apparatus, includes a loading chassis; a cartridge transporting member provided on the loading chassis for transporting the cartridge from a removal position to a play position; a traverse unit for carrying a pickup for recording or reproducing a signal onto or from the disk-like recording medium; a traverse transporting member provided on the loading chassis for transporting the traverse unit from a standby position to the play position; and a driving section provided on the loading chassis for driving the cartridge transporting member and the traverse transporting member. The cartridge transporting member and the traverse transporting member can slide in a direction of transporting the cartridge. One of the cartridge transporting member and the traverse transporting member is disposed on the other.

Abstract: Tilt (?(r, ?)) is measured in a measuring location (P(r, ?) optical disc (2). A pivotable objective lens (34) is brought to a first focus measuring location such as to focus a light beam (32) in a first anchor point (P1(r??r1, ?))having the same angular coordinate ? as said measuring location (P(r, ?)) and having a small radial distance ?r1 from said measuring location. The objective lens is brought to a second focus measuring location such as to focus the light beam in a second anchor point (P2(r+?r2, ?)) having the same angular coordinate ? as said measuring location and having a small radial distance ?r2 from said measuring location, wherein said first and second anchor pints are located on opposite sides of said measuring location. Tilt in said measuring location is calculated from the coordinates of said two focus measuring locations of said objective lens.

Abstract: An objective lens supporting apparatus of an optical pickup includes a lens frame in which an objective lens is mounted; receiving member for receiving driving forces for displacing the objective lens in the direction of the optical axis and in a direction perpendicular to the optical axis is disposed; a support base in which generating member for generating the driving forces is disposed; an elastic member W extended from the support base and fixed to the lens frame for swingably supporting the lens in a cantilevered manner; and a tilting member for inclining the optical axis of the objective lens with respect to the support base by tilting the lens frame.

Abstract: An optical disk device performing data reproducing and/or data recording of a disk with the disk being clamped and rotated. The disk device has a simple structure in which light emitted from an optical pickup can be securely made incident on the disk at right angles. The disk device includes the optical pickup for reproducing or recording on the disk clamped by a clamping mechanism, and an optical pickup driving mechanism. The optical pickup includes a guided part. The optical pickup driving mechanism includes a guide shaft for guiding the movement of the optical pickup via the guided part of the optical pickup. The center axis of the guided part is shifted from the direction perpendicular to the direction of light emitted from the optical pickup so that the direction of light emitted from the optical disk can make an approximately right angle with the disk surface.

Abstract: Of an integrated type leaf spring, a first abutting portion of first leaf spring portion of a narrow spring piece abuts against the bottom surface of a disk motor base to apply reactive force of the first leaf spring portion to the disk motor base. At the same time, a second abutting portion of a second leaf spring portion abuts against the top surface of a mechanical chassis base to apply reactive force of the second leaf spring portion to the mechanical chassis base. Reactive force of the narrow spring piece becomes the sum of the reactive force of the first leaf spring portion and the reactive force of the second leaf spring portion.

Abstract: An optical disk drive includes a mounting plate, a guide bar, a fixing structure for positioning the guide bar on the mounting plate, and a pickup head guided by the guide bar and moveable along a lengthwise direction of the guide bar. The fixing structure includes a fixed joint and a flexible pressure-providing joint. The fixed joint rigidly fixes one end of the guide bar to the mounting plate, the flexible pressure-providing joint positions another end of the guide bar on the mounting plate, and the two ends of the guide bar are fixed in their relative positions due to a flatness of the mounting plate and despite a positioning action of the fixing structure such that linear movement of the pickup head is guided by the guide bar.

Abstract: An optical pickup apparatus (100) is provided with: a carriage body (80); an optical parts accommodation module (70) mounted on said carriage body and accommodating at least (i) a light beam emitting portion (41, 42, 55) for emitting a light beam, (ii) a light beam receiving portion (57, 65), (iii) a beam splitter (44) and (iv) a grating (43) for generating a sub beam for a tracking adjustment out of the light beam emitted from said light beam emitting portion; and a grating adjustment mechanism (62, 63) for rotating said optical parts accommodation module. The optical parts accommodation module is mounted on said carriage body in such a condition that said optical parts accommodation module is allowed to rotate with an axis line of the light beam, which is irradiated toward a disc, as a rotational center.

Abstract: An optical pickup angle adjusting mechanism of a beam angle adjusting structure consists of an external screw member and an internal screw part, while the external screw member is formed by integrating a flange engaging part engaging with a chassis to hold the edge of the chassis with two flanges, an external screw portion and a cylindrical press-fit part located between the flange engaging part and the external screw portion and the internal screw part includes a nut fixed to a pickup support part and a press-fit hole formed in the pickup support part coaxially with the nut for receiving the press-fit part in a close contact manner. Thus, a disk drive and a beam angle adjusting structure preventing adjusting screws from jolts can be obtained without increasing the number of components.

Abstract: Disclosed herein is an optical read and write apparatus. The optical read and write apparatus includes a deck base, a pickup base, a transfer guide and one or more tension springs. In the deck base, an opening is formed in the center portion thereof, a main shaft and a secondary shaft are disposed at both sides of the opening, and a turntable is mounted on one side thereof. In the pickup base, an object lens is provided in the center portion thereof, a guide member having a guide groove fitted around the secondary shaft is formed in the rear portion thereof, and an adjusting screw is extended from the front thereof. In the transfer guide, a connection hole is formed to receive the adjusting screw and to allow the transfer guide to be joined to the pickup base by an adjusting nut and a guide hole is formed to be fitted around the main shaft. The tension springs are positioned between the pickup base and the transfer guide to elastically press the pickup base.

Abstract: The present invention provides a tuning mechanism for flying pickup heads in data storage devices. The pickup device includes a coil, a pivot, a suspension, and a piezoelectric bender. The piezoelectric bender made by a bi-layer or a multi-layer piezoelectric material is formed on one end of the suspension, and proper voltages applied to the piezoelectric bender via wires enable the piezoelectric bender to undergo both neutral axis displacement and bending deflection. A pickup head is attached to the free end of the piezoelectric bender opposite to the coil, and via the piezoelectric bender, focusing and tracking motion of the pickup head can be tuned at the same time. Furthermore, since the characteristic of the piezoelectric bender is similar to bimetallic elements, the bender can undergo large bending deflection to compensate large deformation of rotating optical disks, so that the flying height of the pickup head can be tuned to maintain a constant focusing distance in reading/writing data.

Abstract: A disc drive having a recording disc rotatable about an axis, a slider supporting a transducing head for transducing data with the disc, and a dual-stage actuation assembly supporting the slider to position the transducing head adjacent a select radial track of the disc. The dual-stage actuation assembly includes a movable actuator arm, a suspension assembly supported by the actuator arm including the flexure, a slider bonding pad supporting the slider and a microactuator. The microactuator includes a rotor attached to the slider bonding pad and a stator attached to the flexure. A beam structure operatively connects the rotor to the stator so as to permit movement of the rotor with respect to the stator. The beam structure includes a first beam pair element and a second beam pair element.

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: The present invention provides a tuning mechanism for flying pickup heads in data storage devices. The pickup device includes a coil, a pivot, a suspension, and a piezoelectric bender. The piezoelectric bender made by a bi-layer or a multi-layer piezoelectric material is formed on one end of the suspension, and proper voltages applied to the piezoelectric bender via wires enable the piezoelectric bender to undergo both neutral axis displacement and bending deflection. A pickup head is attached to the free end of the piezoelectric bender opposite to the coil, and via the piezoelectric bender, focusing and tracking motion of the pickup head can be tuned at the same time. Furthermore, since the characteristic of the piezoelectric bender is similar to bimetallic elements, the bender can undergo large bending deflection to compensate large deformation of rotating optical disks, so that the flying height of the pickup head can be tuned to maintain a constant focusing distance in reading/writing data.

Abstract: A disk apparatus of the present invention, in which a cartridge accommodating a disk-like recording medium and having an opening opened or closed by a shutter member is loaded to the disk apparatus, includes a loading chassis; a cartridge transporting member provided on the loading chassis for transporting the cartridge from a removal position to a play position; a traverse unit for carrying a pickup for recording or reproducing a signal onto or from the disk-like recording medium; a traverse transporting member provided on the loading chassis for transporting the traverse unit from a standby position to the play position; and a driving section provided on the loading chassis for driving the cartridge transporting member and the traverse transporting member. The cartridge transporting member and the traverse transporting member can slide in a direction of transporting the cartridge. One of the cartridge transporting member and the traverse transporting member is disposed on the other.

Abstract: An adjustment apparatus for regulating the inclination angle of a spindle motor of an optical disk drive is disclosed. The spindle motor is mounted on a driving circuit board which is mounted in a traverse module. The adjustment apparatus comprises an optic axis regulating tool for containing the traverse module and regulating the inclination angle of the spindle motor. The top surface of the optic axis regulating tool has an opening to expose the spindle motor and a guide rail of the traverse module. A standard plate is placed against on the guide rail, wherein the upper surface of the standard plate is in parallel with the guide rail. A comparable turning wheel is placed to cover the spindle motor, wherein the upper surface of the comparable turning wheel is in parallel with the rotation plane of the spindle motor and a plurality of turbine-like blades are set at the edge of the comparable turning wheel.