198115 ⎘
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation , reproducing using an optical beam at lower power ; Record carriers therefor; Heads, e.g. forming of the optical beam spot or modulation of the optical beam; Means for guiding the beam from the source to the record carrier or from the record carrier to the detector; Separate or integrated refractive elements, e.g. wave plates Active plates, e.g. liquid crystal panels or electrostrictive elements
Aberration correction apparatus, and control apparatus, control method and control program of optical pickup
#302Optical pickup and information processing device
#303Optical pickup device, optical disk apparatus, and light-receiving unit
#304Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method
#305Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method
#306Aberration correction element, optical pickup, and information equipment
#307Aberration compensating device and optical head device
#308Optical scanning device
#309Optical attenuator and optical head device
#310Tilt correcting apparatus and method, information recording apparatus, and information recording/reproducing apparatus
#311Optical pickup and optical recording and/or reproducing apparatus adopting the same
#312Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method
#313Optical pickup for detecting thickness variation of a recording medium, and/or compensating for spherical aberration caused by thickness variation of a recording medium
#314Electrowetting optical switch
#315Optical pickup and optical disk apparatus
#316Objective lens drive unit in an optical head
#317Optical pickup apparatus
#318Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method
#319Optical pickup unit
#320Device and method for controlling tilt servo
#321Optical disk apparatus
#322Optical head device
#323Optical disk unit capable of restraining changes in light quantity
#324Optical head device and optical information recording/reproduction apparatus
#325Optical disc recording and/or reproducing apparatus and aberration adjustment method
#326Optical element, objective optical system, optical pick-up apparatus, and drive apparatus of optical disk
#327Device and method for controlling tilt servo
#328Wavefront aberration correcting device and optical pickup equipped with the same
#329Optical disc recording and/or reproducing apparatus and aberration adjustment method
#330Optical disc recording and/or reproducing apparatus and aberration adjustment method
#331Optical pickup apparatus
#332Phase plate and an optical data recording/reproducing device
#333Optical element, optical head, optical information device and method of controlling optical head
#334Phase masks for use in holographic data storage
#335Aberration correcting optical unit, optical pickup apparatus, and information recording/reproducing apparatus
#336Objective optical element and optical pickup apparatus
#337Optical pickup device that corrects the spot shape of reflected light beams
#338Optical pick-up apparatus and optical information recording and/or reproducing apparatus
#339Optical head device, optical recording device, and optical recording method
#340Wavefront aberration compensation element, optical pickup, and optical disk apparatus
#341Liquid crystal optical element and optical device
#342Liquid crystal device, its driving method, and driving apparatus
#343Optical disk with plural signal mark positions in a direction substantially perpendicular to tracks
#344Optical recording medium processing device and focal point control method thereof
#345Optical head device and optical information recording or reproducing apparatus
#346Recording/reproducing apparatus with optical path correction system
#347Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method
#348Optical head
#349Diffractive optical element, objective optical system, optical pick-up device and optical information recording reproducing apparatus
#350Optical pickup
#351Liquid crystal device and its manufacturing method
#352Optical head, optical recording medium recording and/or reproducing apparatus and recording and/or reproducing method using the optical head
#353Optical pickup apparatus
#354Optical recording device and aberration correction method
#355Recording/reproducing apparatus for optical information recording medium and optical head
#356Optical pick-up device and optical information recording reproducing apparatus
#357Optical head apparatus and optical information recording or reproducing apparatus
#358Optical pickup device and optical recording medium reproducing device
#359Optical pickup apparatus and optical recording medium playback apparatus
#360Optical head and optical recording/reproducing device using it and aberration correction method
#361Light receiving and emitting unit and optical pickup using the same
#362Optical scanning device
#363Optical disc drive and optical pickup
#364Optical pickup apparatus, optical element for optical pickup apparatus and producing method of optical element
#365Optical pickup and optical recording/reproducing apparatus using the same
#366Aberration adjustment device, method thereof, optical pickup, and optical information recording apparatus
#367Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus
#368Optical disk apparatus and method for recording and reproducing an optical disk
#369Spherical aberration corrector plate comprising two wedge-shaped plates enabled to relatively shift
#370Information recording device and information recording method
#371Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus
#372Compatible optical pickup
#373Optical head and optical disk apparatus
#374Method for making an optical pickup apparatus having a movable unit supported by springs attached to a fixed unit