198054 ⎘
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; Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection; Arrangements for mechanically moving the whole head Sled-type positioners
Optical pickup actuator preventing short circuit by minimizing unwanted contact between components
#302Optical pickup actuator and optical recording and/or reproducing apparatus employing the same
#303Disk drive with optical pickup guiding and disk table restricting element
#304Optical pickup actuator, optical pickup, and optical recording and/or reproducing apparatus
#305Optical recording disk device and manufacturing method therefor
#306Objective lens driving device, optical pickup device, and optical information recording and/or reproduction device
#307Disk apparatus having optical pickup
#308Disc drive apparatus
#309Method of driving step motor of compact disc drive
#310Objective lens driving apparatus for an optical head
#311Optical pickup head feeding device
#312Recording or playback method and apparatus
#313Pick-up head for an optical recording and/or reproducing instrument
#314Recording or playback method and apparatus
#315Optical disc drive
#316Optical disk drive with multiple optical pick-up heads