198113 ⎘
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
Sub-classes:Method and system for forming birefringent voxels
#2Optical pickup
#3Hologram reproducing apparatus and hologram reproducing method
#4Holographic data storage system
#5Optical information recording/reproducing apparatus
#6Optical information reproduction apparatus and optical information reproduction method
#7Optical pickup and optical recording and reproducing device
#8Optical diffraction element, optical pickup, and optical diffraction element manufacturing method
#9Optical pickup device and optical disk drive including the same
#10Modulated signal detecting apparatus and modulated signal detecting method
#11OPTICAL PICKUP AND OPTICAL DISK DEVICE USING OPTICAL PICKUP
#12Reflection type wavelength plate and optical head device
#13OPTICAL PICKUP, OPTICAL RECORDING/REPRODUCING DEVICE, COMPUTER, OPTICAL DISK RECORDER, AND MINUTE SPOT FORMING METHOD
#14OPTICAL PICKUP APPARATUS
#15OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS APPLYING THE SAME
#16Compound quarter-wave retarder for optical disc pickup heads
#17Optical pickup apparatus
#18Reproducing device and optical path length servo control method
#19Method of controlling light, and optical pickup device and optical disk drive adopting the method
#20OPTICAL PICKUP DEVICE AND OPTICAL DISC DRIVE
#21OPTICAL BEAM FORMING APPARTUS
#22OPTICAL PICK-UP DEVICE AND METHOD FOR MANUFACTURING THE SAME
#23Optical pickup device
#24Optical information recording/reproduction method and device
#25Optical pickup device and optical disc apparatus using same
#26Optical pickup apparatus
#27Pickup apparatus, optical recording and reproduction apparatus, and recording and reproduction method
#28Half-wave plate, optical pickup device, polarization conversion element, and projection display device
#29ELECTRONIC DEVICE
#30OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE
#31Optical pickup device
#32OPTICAL PICKUP AND OPTICAL DISC DEVICE
#33Hologram disc reading and writing apparatus and hologram disc reading apparatus
#34Laminated half-wave plate, optical pickup device, polarization converter, and projection display apparatus
#35Extraction optical system and optical head device including the same
#36Optical disc apparatus
#37PHASE DIFFERENCE ELEMENT AND OPTICAL HEAD APPARATUS
#38Apparatus with a pickup for reading data from or writing data to an optical storage medium
#39Quarter wave plate, optical pickup device, and reflective liquid crystal display device
#40Recording and reproducing device and polarization direction controlling method
#41Optical phase controller and optical phase control method
#42Optical information recording/reproducing apparatus and method
#43Method for holographic data retrieval by quadrature homodyne detection
#44Optical pickup and information device
#45Beam applying method, beam applying apparatus, and optical recording medium
#46Optical pickup apparatus for use on a multi-layered optical information storage medium
#47OPTICAL PICKUP AND INFORMATION DEVICE
#48Wavelength selecting wavelength plate and optical head device using it
#49OPTICAL PICK-UP DEVICE
#50Transmission Type Optical Element
#51Polarization-based holographic optical reproducing apparatus including dc modulating element
#52Reflection type collinear holographic storage system
#53Optical pickup apparatus
#54OPTICAL PICK-UP UNIT WITH TWO-MIRROR PHASE SHIFTER
#55APPARATUS FOR RECORDING/REPRODUCING HOLOGRAPHIC INFORMATION
#56Holographic data storage medium and apparatus and method for recording/reproducing holographic data to/from the same
#57Optical information processing apparatus, optical pick-up device and optical recording disc system
#58Laminated wave plate and optical pickup device using the same
#59Optical information recording and reproducing device
#60OPTICAL PICKUP
#61RECORDING APPARATUS, REPRODUCING APPARATUS, RECORDING METHOD, REPRODUCING METHOD, AND RECORDING MEDIUM
#62Optical head apparatus and optical information recording/reproducing apparatus
#63Hologram recording/reproducing apparatus and light source apparatus
#64Optical Head Device, Optical Information Device, Optical Disc Player, Car Navigation System, Optical Disc Recorder, and Optical Disc Server
#65OPTICAL DISK APPARATUS
#66OPTICAL HEAD DEVICE
#67Laminated wave plate and optical pickup using the same
#68Optical pickup and optical disk apparatus
#69Beam applying method, optical recording medium, and recording and reproducing apparatus
#70OPTICAL PICKUP DEVICE
#71Holographic recording apparatus, holographic reproducing apparatus and holographic recording and reproducing apparatus
#72Optical Pickup Apparatus and Optical Disk Drive
#73Optical Pickup Having Aberration Correction
#74OPTICAL HEAD DEVICE
#75OPTICAL HEAD DEVICE
#76Optical head apparatus and optical information recording or reproducing apparatus
#77Multi-Radiation Beam Optical Scanning Device
#78Optical pickup device and optical disk apparatus
#79Optical pickup device and optical disk apparatus
#80Laminated wave plate and optical pickup using the same
#81Optical pickup, optical disc apparatus, integrated coupling lens, integrated prism, and optical information equipment
#82Optical pickup apparatus and optical disk drive apparatus
#83Multivalued information reproducing method and multivalued information reproducing apparatus
#84Optical pickup device and optical recording medium driving device
#85Optical pickup, optical disc device, polarization adjustment plate, and optical device
#86OPTICAL ELEMENT AND OPTICAL PICKUP APPARATUS
#87OPTICAL PICKUP DEVICE
#88Optical Pickup Device
#89OPTICAL PICKUP DEVICE AND OPTICAL DISK DEVICE
#90Optical pickup
#91APPARATUS FOR RETROREFLECTING REFERENCE BEAM AND HOLOGRAPHIC INFORMATION RECORDING/REPRODUCING DEVICE EMPLOYING THE SAME
#92Optical pickup apparatus
#93OPTICAL PICKUP DEVICE
#94Wave retardation plate and optical pickup device has them
#95Optical disk apparatus compatible with different types of mediums adapted for different wavelengths
#96Optical pickup and optical disc device
#97Optical pickup apparatus
#98Optical recording method, optical recording apparatus, optical recording medium, optical reproducing method, and optical reproducing apparatus
#99Optical Integrated Unit Including Hologram Element and Optical Pickup Device
#100Optical disk apparatus
#101OPTICAL PICK-UP APPARATUS AND OPTICAL DISC APPARATUS
#102COMPATIBLE OPTICAL PICKUP HAVING HIGH EFFICIENCY AND OPTICAL RECORDING AND/OR REPRODUCING APPARATUS INCLUDING THE SAME
#103WAVELENGTH PLATE AND OPTICAL HEAD DEVICE
#104Optical head device with film wavelength plate incorporated therein
#105Optical pickup
#106Optical pickup apparatus which records and/or reproduces information using different types of optical information recording mediums
#107Compositive wave plate
#108Wave plate for laser optical system
#109Optical head device
#110Optical element, optical pickup unit, and optical disk drive unit
#111Optical recording medium driving device
#112Wavelength plate
#113Method and apparatus capable of detecting spherical aberration caused by a storage medium
#114Extraction optical system, optical pick-up device and optical disc apparatus
#115Optical pickup device
#116Apparatus and method for recording and reproducing optical information
#117Holographic device
#118TRANSMISSION TYPE OPTICAL ELEMENT
#119Compatible optical pickup and optical recording and/or reproducing apparatus employing the same
#120Wave plate
#121Optical pickup apparatus and information recording and reproducing apparatus
#122Optical pickup and optical information processing apparatus with light sources of three different wavelengths
#123Optical pickup and optical disk apparatus
#124Optical pickup and optical disc apparatus
#125Laminated wavelength plate
#126Operational mode performance of a holographic memory system
#127Optical pickup device
#128Optical pickup device and recording and/or reproducing apparatus
#129Optical integrated unit and optical pickup
#130Optical scanning device
#131Optical disk apparatus compatible with different types of mediums adapted for different wavelengths
#132Optical recording medium driving device
#133Optical element, optical pickup unit, and optical disk drive unit
#134Achromatic polarization devices for optical disc pickup heads
#135Optical pickup device
#136Optical information reproduction device
#137Optical pickup device with phase shift mirror
#138Optical information processing apparatus, optical pick-up device and optical recording disc system
#139Wavelength plate, optical element, and optical pickup
#140Optical disk apparatus using mechanism for controlling spherical aberration
#141Apparatus for recording optical information
#142Optical pickup device
#143Gratings, related optical devices and systems, and methods of making such gratings
#144Optical head device
#145Optical head device and optical information recording or reproducing device
#146Optical head device and optical information recording/reproduction apparatus
#147Optical disk apparatus with a wavelength plate having a two-dimensional array of birefringent regions
#148Refracting objective optical system and optical recording/reproducing device using the same
#149Phase difference plate and optical head device
#150Molding method, cooling apparatus and optical element
#151Optical element and optical pickup apparatus
#152Laminated wave plate and optical pickup using the same
#153Two wavelength laser module and optical pickup device
#154Optical pickup device and optical disk device
#155Optical pickup
#156Hologram recording medium and recording and reproducing system
#157Holographic ROM system
#158Light emitting module and optical pickup apparatus and method employing the same
#159Optical element and optical head device using it, and optical information device using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information device
#160Optical scanning device
#161Optical head apparatus and optical information recording or reproducing apparatus
#162Laminated phase plate and optical pickup using thereof
#163Optical pickup using a wedge type beam splitter
#164Optical element, optical element wafer, and manufacturing methods for the same
#165Spherical aberration corrector plate comprising two wedge-shaped plates enabled to relatively shift
#166Optical pickup device
#167Compatible optical pickup
#168Holographic optical information recording and reproducing apparatus which parallel-translates light ray flux to correct tilt
#169Optical scanner with micro-optics for beam combination
#170Optical pickup device and method for controlling the same
#171Optical scanning device
#172Information verification method and related device