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Class Information
Number: 369/44.23
Name: Dynamic information storage or retrieval > With servo positioning of transducer assembly over track combined with information signal processing > Optical servo system > Optical head servo system structure > Structure for shaping beam or causing astigmatic condition
Description: Subject matter having means to modify the cross-sectional profile or energy distribution of the beam or cause an astigmatic beam condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619959 |
Optical head, optical recording medium recording and/or reproducing apparatus and recording and/or reproducing method using the optical head |
Nov. 17, 2009 |
| 7606120 |
Objective lens, optical head, optical system, and design method for objective lens |
Oct. 20, 2009 |
| 7602679 |
Optical lens and information recording and reproducing device |
Oct. 13, 2009 |
| 7596061 |
Optical disk apparatus |
Sep. 29, 2009 |
| 7586827 |
Optical pickup apparatus |
Sep. 8, 2009 |
| 7586815 |
Pickup lens with phase compensator and optical pickup apparatus using the same |
Sep. 8, 2009 |
| RE40908 |
Optical recording/reproducing apparatus for optical disks with various disk substrate thickness |
Sep. 8, 2009 |
| RE40895 |
Optical head and apparatus for and method of storing and reproducing optical information |
Sep. 1, 2009 |
| 7580332 |
Optical pickup, optical disk drive, light detecting apparatus, and signal generating method for optical pickup |
Aug. 25, 2009 |
| 7580327 |
Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method |
Aug. 25, 2009 |
| 7573801 |
Optical pickup |
Aug. 11, 2009 |
| 7570548 |
Optical pickup utilizing nonvolatile memory and adjustment method |
Aug. 4, 2009 |
| 7570440 |
Optical head and an optical record playback equipment |
Aug. 4, 2009 |
| 7564765 |
Optical pickup device and optical disk apparatus |
Jul. 21, 2009 |
| 7561500 |
Apparatus using light-attenuating element for optically reproducing and recording information |
Jul. 14, 2009 |
| 7561499 |
Light focusing optical system, optical pickup device and optical recording and reproducing device using the same, as well as light focusing method |
Jul. 14, 2009 |
| 7551526 |
Disk drive apparatus and spherical aberration correcting method |
Jun. 23, 2009 |
| 7545725 |
Optical reading apparatus capable of correcting aberration |
Jun. 9, 2009 |
| 7544922 |
Near-field light-emitting element and optical head |
Jun. 9, 2009 |
| 7542397 |
Aberration correction apparatus, and control apparatus, control method and control program of optical pickup |
Jun. 2, 2009 |
| 7542396 |
Information recording apparatus, information recording medium and information recording medium |
Jun. 2, 2009 |
| 7542385 |
Optical disk unit and aberration correcting method used for this |
Jun. 2, 2009 |
| 7539090 |
Optical pick-up head, optical information apparatus, and optical information reproducing method |
May. 26, 2009 |
| 7539089 |
Optical disc device |
May. 26, 2009 |
| 7535804 |
Apparatus and method for recording an information on a recordable optical record carrier using oval spot profile |
May. 19, 2009 |
| 7525893 |
Electron beam recorder and electron beam irradiation position detecting method |
Apr. 28, 2009 |
| 7522485 |
Method for adjusting focus or tracking detection unit, and optical disc device |
Apr. 21, 2009 |
| 7522484 |
Optical information processor |
Apr. 21, 2009 |
| 7515522 |
Lensless optical servo system for an optically assisted disk drive |
Apr. 7, 2009 |
| 7508746 |
Optical pickup device |
Mar. 24, 2009 |
| 7499386 |
Aberration correction apparatus, and control apparatus, control method and control program of optical pickup |
Mar. 3, 2009 |
| 7499381 |
Optical disk apparatus |
Mar. 3, 2009 |
| 7492678 |
Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion |
Feb. 17, 2009 |
| 7483359 |
Optical pickup head and information recording and/or reproducing apparatus incorporating same |
Jan. 27, 2009 |
| 7483345 |
Optical pickup apparatus capable of compensating thickness deviation of optical recording media |
Jan. 27, 2009 |
| 7482573 |
Optical head, optical reproduction apparatus and optical record and reproduction apparatus |
Jan. 27, 2009 |
| 7480228 |
Optical disc apparatus |
Jan. 20, 2009 |
| 7480216 |
Optical information recording apparatus |
Jan. 20, 2009 |
| 7471611 |
Zone phase correcting lens and optical head device |
Dec. 30, 2008 |
| 7468849 |
Object lens unit and optical pickup device employing the unit |
Dec. 23, 2008 |
| 7457222 |
Optical element, optical pickup unit, and optical disk drive unit |
Nov. 25, 2008 |
| 7450487 |
Optical pickup apparatus |
Nov. 11, 2008 |
| 7450476 |
Light emitting module and optical pickup apparatus and method employing the same |
Nov. 11, 2008 |
| 7447123 |
Optical pickup device |
Nov. 4, 2008 |
| 7444047 |
Multiplexing optical system |
Oct. 28, 2008 |
| 7440383 |
Optical pickup device and recording and/or reproducing apparatus |
Oct. 21, 2008 |
| 7428207 |
Aberration correcting device and optical recording medium reproducing apparatus |
Sep. 23, 2008 |
| 7428194 |
Integrated optical pickup and optical recording and/or reproducing apparatus using the same |
Sep. 23, 2008 |
| 7428193 |
Optical pickup device and optical recording medium reproducing device |
Sep. 23, 2008 |
| 7420894 |
Optical pickup device |
Sep. 2, 2008 |
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