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Match Document Document Title
7391680 Optical pickup system and disk drive with the same  
A optical pickup system for use in a disk drive includes a stepping motor, a lead screw supported by a bracket and coupled to the stepping motor, in which the lead screw has spiral grooves formed...
7388815 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...
RE40371 Optical disc recording/reproduction apparatus and method  
An optical disc recording/reproduction apparatus for recording and/or reproducing a data by applying a beam from an optical head unit through a substrate onto/from a recording layer of the optical...
7382696 Optical pick-up device  
The present invention provides an optical pick-up device capable of suppressing the inclination of a lens actuator in the jitter direction caused by the variation of the ambient temperature thereof...
7372785 Spherical aberration compensation actuator and optical pickup system  
A spherical aberration compensation actuator and an optical pickup system are provided. The spherical aberration compensation actuator mounts an element for compensating a spherical aberration and...
7372784 Optical head apparatus  
The present invention proposes an optical head apparatus provided with light-blocking structure that can reliably prevent nonessential light from reaching the photo detector, without being an...
7369335 Optical pickup actuator  
An optical pickup actuator includes a bobbin, support members, and a pair of magnetic circuits. An objective lens is mounted on the bobbin. The support members have first ends fixed on sides of the...
7366063 Optical discs for measuring analytes  
This invention directs to an optical disc assembly configured to receive an analyte which can be detected by a standard optical disc reader or an optical disc reader modified therefrom. The optical...
7366062 Optical head disk device  
The optical head device for carrying recording/reproducing of data by irradiating a recording face of an optical disk with a laser beam, includes a base frame provided with an optical system for...
7358507 Liquid removal in a method and device for irradiating spots on a layer  
For irradiating a layer ( 3 ) a radiation beam ( 7 ) is directed and focused to a spot ( 11 ) on the layer ( 3 ), relative movement of the layer ( 3 ) relative to the optical element ( 59 ) is...
7355945 Optical pickup adjusting apparatus and adjusting method  
An adjustment apparatus for adjusting an optical pickup capable of recording and/or reproducing optical discs of different sorts. The adjustment apparatus is an adjustment optical disc having a...
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...
7352662 Molded coil device for actuator of disc drive  
A molded coil device includes a coil comprised of a plurality of turns of a conductive material through a plurality of planes and an integral body comprised of an insulating and nonmagnetic...
7349295 Optical head device  
A lens holder ( 101 ) holds an objective lens ( 4 ) and a support shaft ( 103 ) is inserted in a bearing hole ( 101 a ) in the lens holder ( 101 ). Light that is emitted from a light source and...
7342870 Position adjustment apparatus, optical pickup apparatus and position adjustment method  
A chuck portion provided to keep a fixed positional relation with respect to a housing, holds a light source unit detachably. This chuck portion is displaced from an advanced position to a...
7342849 Recording and/or playback device  
A disk recorder/player ( 1 ) including a skew adjusting means of a thin design is provided which includes a base ( 101 ), a disk rotation driving mechanism ( 102 ) for an optical disk ( 4 ), an...
7339859 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...
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...
7336566 Method and apparatus for track type identification, and method of track jump  
The track jumping of a scanner on optical storage media in which information items are stored on groove and land tracks or which have not yet been written to is intended to be made possible in a...
7324411 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...
7310289 Actuator for optical pickup of an optical disk drive and a method of using the same  
An actuator and a method of operating an optical pickup of an optical disk drive comprises a blade on which an object lens is mounted, a plurality of magnets for generating a magnetic field, a...
7301858 Optical head device  
Disclosed is an optical head device including: an object lens; an actuator displacing the optical lens; a mirror which has a reflection plane to bend a direction of a light traveling on an optical...
7292518 Apparatus for recording information and apparatus for recording and reproducing information  
An apparatus for recording information, which comprises a one-dimensional diode array ( 21 ) constituted with a plurality of laser diodes arranged in a line, a modulation control signal generator (...
7292516 Sensor optimized for phase detection in page-based optical data storage  
A system for phase detection in page-based optical data storage involves a number of features that may be used individually or in combination to provide optimizations and to facilitate the...
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...
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...
7283434 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...
7283433 Manufacturing method for optical head device and optical head device  
A manufacturing method for an optical head device includes integrating at least a plurality of light sources and a plurality of diffraction elements with each other as an optical module, adjusting...
7272082 Optical scanning device comprising a tiltable lens system  
An optical scanning device includes an actuator for displacing an objective lens in a first direction parallel to the optical axis of the objective lens, and in a second direction parallel to a...
7266055 Optical pickup actuator and optical disk drive using the same and method  
An optical pickup actuator and optical disc drive using the same. The optical pickup actuator includes a blade holding an objective lens and supported on a base by a plurality of suspension wires...
7263039 Micro-actuator, manufacturing method thereof, optical pickup head of optical recording/reproducing apparatus with micro-actuator and manufacturing method thereof  
A micro-actuator, its manufacturing method, an optical pickup head of an optical recording/reproducing apparatus having the micro-actuator, and its manufacturing method are disclosed. A low voltage...
7257054 Optical recording/reproducing apparatus  
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...
7254105 Method and apparatus for diffractive information storage  
A petabyte diffractive storage system stores information on a diffractive storage tape. A light component generates a large reference beam to cover the plurality of points of the diffractive...
7254097 Optical disc apparatus  
An optical pickup of an optical disc apparatus has a lens holder for holding an objective lens is pivoted with a guide shaft slidably in a direction in parallel with an optical axis of the...
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,...
7227817 Low profile optical head  
An optical head of a type useable in a optical disk reader/writer is provided. The optical head has a low profile, e.g., in a vertical direction parallel to the disk spin axis, such as less than...
7225452 Optical head  
A relay lens driving device provided in an optical head moves a relay lens in the direction of an optical axis thereof to correct a spherical aberration that may be caused by an error in the...
7218597 Holographic recording method  
In the disclosed holographic recording method, when multiplex recording of data of a plurality of pages is performed, exposure time of a hologram of a final page to be recorded is fixed...
7209425 Drive apparatus for tape-like optical recording medium  
An apparatus for driving a tape-shaped optical recording medium, which comprises a supply reel ( 41 ) for supplying an optical tape ( 40 ), a take-up reel ( 42 ) for taking-up the optical tape ( 40...
7209412 Optical head and optical disk drive unit therewith  
An optical head is provided which is capable of making an optical disk drive unit thinner. The optical head includes: a laser diode which emits light toward an optical disk; a photodiode which is...
7200097 Parallel recording and reading of diffractive memory using multiple object beams  
A parallel recording of diffractive storage system is provided. The recorded information is cellular for its designation. A laser beam is data modulated through a single reference beam and a...
7196978 Optical head  
An optical head enabling a size reduction so that the optical head can be stored in an opening of a cartridge for a disk and enabling an improvement in the dynamic performance as the density and...
7187506 Actuator device, optical disk device, and information playback device  
An actuator device, an optical disk device and an information playback device comprising: an objective lens for focusing a light on a recording and/or playback face of a recording medium; a lens...
7180837 Optical pickup including an optical modulator, and an optical apparatus comprising the optical pickup  
The present invention relates to an optical pickup, and more particularly to an optical pickup comprising an optical modulator for reflecting and diffracting an incident light beam to generate...
7180832 Media driving apparatus  
A screw axis and a guide axis are provided in parallel in a base plate, and both sides of an optical pickup are supported by the screw axis and the guide axis. The base plate is provided with a...
7173887 Carriage servo method and apparatus for determining and setting a drive signal  
A carriage servo apparatus according to the present invention comprises: a carriage for supporting a pickup that records or reproduces information relevant to an information recording face; and a...
7154838 Optical detector, optical head device, optical information processing device, and optical information processing method  
A photodetector, includes: a semiconductor chip that converts received light to an electric signal; and a resin body that encapsulates the semiconductor chip. The photodetector further includes a...
7151719 Method for reducing the noise in a wobble signal  
The present invention relates to a method and a circuit for recovering information contained in a wobble track of an optical storage medium. One aim of the invention is to describe a method within...
7142483 Optical storage drive with functions of detecting turn over  
An optical storage drive with functions of detecting turn over is disclosed. When it is detected that an optical storage drive is turned over, the power of the optical storage drive is turned off,...
7123553 Lens support mechanism, optical head device and optical information processor  
A lens support mechanism including a semiconductor laser 10 for emitting a laser beam, an optical head enclosure 3 to which the semiconductor Laser 10 is fixed and located, a collimator lens ...
Matches 1 - 50 out of 597 1 2 3 4 5 6 7 8 9 10 11 12 >