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7601957 |
Electron microscope and combined illumination lens
An object of the present invention is to provide an electron microscope that employs a hologram of a diffraction pattern to reconstruct a microscopic image involving no imaging aberration due to...
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7601465 |
Holographic recording medium
A holographic recording medium has a recording layer including a radical-polymerizable compound, a first photo-radical polymerization initiator (A) containing a titanocene compound, and a second...
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7588863 |
Hologram recording method and hologram recording material
To provide a hologram recording method capable of satisfying high sensitivity and at the same time, satisfying high diffraction efficiency, good preservability, low shrinkage percentage, dry...
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7583423 |
Switchable polymer-dispersed liquid crystal optical elements
Transmission and reflection type holograms may be formed utilizing a novel polymer-dispersed liquid crystal (PDLC) material and its unique switching characteristics to form optical elements....
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7583422 |
Holographic recording medium and holographic recording and reproducing method
A white-light reconstruction hologram and a Fourier hologram for data can be recorded in a same holographic recording medium. The holographic recording medium includes, in a substantially identical...
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7582392 |
Hologram-recording material, hologram-recording medium, and hologram-recording method
A hologram-recording material, including a photoresponsive molecule, a reactive molecule having an intrinsic birefringence, and a photopolymerization initiator that accelerates polymerization...
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7582391 |
Two-photon absorption decolorizable material, two-photon absorption refractive index modulation material, two-photon absorption polymerization material, two-photon absorption polymerization method and three-dimensional optical recording material
A two-photon absorption decolorizable material comprising: a two-photon absorption dye executing a two-photon absorption; and a decolorizable dye having a molar absorption coefficient equal to or...
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7582390 |
Two-photon absorbing polymerization method, two-photon absorbing optical recording material and two-photon absorbing optical recording method
(1) A two-photon absorbing polymerization method comprising a first step of irradiating light absorbable by two-photon absorption to form a latent image and a second step of exciting the latent...
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7572555 |
Hologram recording material, hologram recording method and optical recording medium
A hologram recording material is provided and includes at least a sensitizing dye capable of absorbing light having a hologram recording wavelength to generate an excited state thereof, and an...
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7563545 |
Hologram transfer sheet and intermediate transfer recording medium
It is an object of the invention is to provide a hologram transfer sheet comprising: at least, a peelable layer; a relief formation layer having a relief; and a metal thin layer, which are...
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7550234 |
Photosensitive composition for volume hologram recording and photosensitive medium for volume hologram recording
A photosensitive composition and A photosensitive medium for volume hologram recording comprises a photopolymerization reactive compound (a monomer) and any one of the following binder: (a) an...
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7545546 |
Holographic recording medium and method for manufacturing the same
A holographic recording medium which has parallelism of high precision and causes little substrate deformation ascribable to contraction of its recording areas when recording interference fringes,...
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7542186 |
3-D holographic recording method and 3-D holographic recording system
A method of 3D holographic recording by using a very simple optical system includes dividing a femto-second laser pulse into a plurality of light beams by a diffraction beam splitter, focusing four...
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7542185 |
Holographic recording medium, holographic record erasing method, and holographic recording and reproducing apparatus
A holographic record erasing method and a holographic recording and reproducing apparatus in which data reproduction can be disabled without irradiating a holographic recording medium with a high...
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7524590 |
Methods for storing holographic data and articles having enhanced data storage lifetime derived therefrom
The present invention provides a method for storing holographic data comprising providing an optically transparent substrate comprising a photochemically active dye and a photo-acid generator;...
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7524589 |
Holographic recording medium and recording method
The present invention provides a holographic recording medium comprising: an optical recording layer, which optical recording layer includes one of a polymer compound having photoisomerizable...
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7521155 |
Volume hologram layer and volume hologram transfer foil
It is a main object of the present invention to provide a volume hologram layer with good foil cutting property which is used for a volume hologram transfer foil and the like. The present invention...
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7521154 |
Holographic storage media
Described are holographic storage mediums and method of making holographic storage mediums. The holographic storage mediums may have write components that bind to the matrix to form a pattern in...
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7520216 |
Method for manufacturing laser hologram paper
A method for manufacturing water-based laser hologram papers has acts of entirely or partially coating water-based varnish on a printed paper substrate, subjecting the paper substrate to a mirror...
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7511784 |
Hologram color filter, method for fabricating the same, and color liquid crystal display comprising it
A hologram color filter diffraction-separates an incident lightwave using a hologram to project thus separated lightwaves having different-wavelengths at intended positions with a specified spatial...
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7507504 |
Optical storage system
The present invention includes an optical system to control and optimize molecular reorientation for information storage. A preferred embodiment of the invention utilizes light sources emitting at...
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7502151 |
Holographic recording and reconstructing apparatus and method
A holographic recording and reconstructing apparatus includes a light source having a variable oscillation wavelength; a temperature sensing unit operable to sense temperature; and a control unit...
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7501210 |
Photo-responsive high-molecular compound, photo-responsive high-molecular composition, dicarboxylic acid monomer, polyester, optical recording medium and optical record reproducing device
In the present invention, a photosensitive layer of an optical recording medium includes a photo-responsive high-molecular compound comprising a photo-responsive group (e.g., an azobenzene...
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7498103 |
Holographic recording medium and method of manufacturing the same
Disclosed is a holographic recording medium and methods of manufacturing the holographic recording medium. The example of the medium has a recording layer containing a three dimensionally...
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7494747 |
Holographic recording medium
Disclosed is a holographic optical recording medium, comprising a recording layer containing a three dimensionally cross-linked polymer matrix, a radically polymerizable compound, and a photo...
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7492691 |
Supplemental memory having media directory
Disclosed is a holographic data storage device including holographic media for containing data, writing data to and reading data from. The storage device also includes at least one supplemental...
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7491472 |
Volume hologram transfer foil
The main object is to provide a volume hologram transfer foil showing an excellent foil cutting property and capable of being transferred easily to a transferred body. This object is solved by...
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7483189 |
Holographic memory medium, holographic memory device and holographic recording device
Even when a tilt error is caused in a holographic memory in a direction perpendicular to a surface including optical axes of a signal beam and a reference beam, the signal beam and the reference...
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7477433 |
Hologram recording method, optical recording medium, and hologram-recording device
A hologram-recording method including recording a reflection-type volume hologram onto an optical recording medium by irradiating the optical recording medium with a modulated beam obtained by...
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7474447 |
Apparatus and method for recording and reproducing optical information
Optical information is stored in an optical information recording medium having an information recording layer utilizing holography with an optical information recording apparatus which includes...
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7471431 |
Hologram device and hologram recording/reproducing method
A hologram device records information of an interference fringe of signal light and reference light onto a hologram recording medium and reproduces the recorded information by emitting the...
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7468822 |
Holographic recording medium
This invention is a holographic recording medium including a track in which position information to specify a recording position and a reproducing position of page data is formed. The position...
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7453785 |
Method for generating a holograrm on a disc surface
A method for generating a hologram on a disc surface provides for the use of calibration spots burned onto a disc with an accuracy greater than one half wavelength of light.
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7443553 |
Holographic sensors and their production
An array of discrete sensors disposed on a substrate, each sensor comprising a holographic support medium and a hologram disposed throughout the volume of the medium, whereby interaction with an...
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7440152 |
Holographic disk medium with servo marks
The present invention relates to a holographic disk medium ( 1 ) with servo marks ( 7 ), and more specifically to a holographic disk medium ( 1 ) having a common reflective layer ( 3 ) for...
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7439009 |
Three-dimensional optical data storage in fluorescent dye-doped photopolymer
A host matrix—normally a binder such as cellulose acetate propionate in a solvent such as acetone—contains a radiation-polymerizable photopolymer—normally a monomer like dipentaerythritol...
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7429437 |
Diffractive optical element and method of manufacture
A diffractive optical element such as a diffuser, diffraction grating, and/or hologram, can be manufactured by using a surface relief pattern on a surface of a surface relief tool. A layer of...
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7428085 |
Method for producing hologram by pico-second laser
Disclosed is a method of producing a hologram through a two-beam laser interfering exposure process, which comprises emitting a coherent laser light with a pulse width (τ) ranging from greater...
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7416306 |
Laser projector
A reflection-type laser projector ( 100 ) projects modulated laser beams outputted from a laser projection unit ( 40 ), on a screen, wherein a reflector ( 112 ) as a constituent of the screen ( 110...
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7391703 |
Methods for manufacturing volume Bragg grating elements
Methods for recording volume Bragg grating structures having a target wavelength are disclosed. Such a method may include providing a photosensitive recording medium, bringing a first face of the...
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7388695 |
Data storage devices and methods
A data storage device including: a plastic substrate having a plurality of volumes arranged in tracks along a plurality of vertically stacked, laterally extending layers therein; and, a plurality...
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7385740 |
Hologram recording medium
There is provided a hologram recording medium having: a recording layer at which a hologram can be recorded by illumination of writing light; and a protective layer provided on the recording layer...
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7384724 |
Method for fabricating optical devices in photonic crystal structures
A method for manufacturing optical components in a three-dimensional photonic crystal lattice. A first resist ( 9 ) is coated on a substrate ( 10 ) and exposed to an e-beam ( 11 ), to produce an...
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7369286 |
Hologram recording medium, and recording apparatus and reproducing apparatus for the same
A hologram recording medium, and a recording apparatus and a reproducing apparatus for the same, by which scattered beam noise is minimized and recording capacity is increased using spatial...
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7362523 |
Method for producing holographic recording medium
A method for producing a holographic recording medium having a holographic recording layer between a first substrate and a second substrate including the steps of: providing a holographic recording...
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7361432 |
Composition for hologram-recording material, hologram-recording medium, and process for producing the same
An object of the present invention is to provide a hologram recording material composition comprising a radical polymerizable compound being solid at an ordinary temperature and having a...
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7345799 |
Optical recording medium and its use
An optical recording medium which comprises a holographic recording layer on which information is recorded by means of holography, a light shield member fixed to at least one of main surfaces of...
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7342697 |
Hologram recording medium
A hologram recording medium includes a hologram recording layer and a transparent substrate layer stacked on the hologram recording layer. The recording layer records an interference pattern of a...
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7339710 |
Holographic recording medium, holographic reading system, and data reading method from the holographic recording medium
A holographic disc recording medium records a hologram over the entire holographic disc recording medium by using a conical reference beam for recording. A hologram recorded image includes recorded...
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7326500 |
Sensitization of photo-thermo-refractive glass to visible radiation by two-step illumination
Photo-thermo-refractive (PTR) glass is a multi-component silicate glass having photosensitivity in rear UV region. A novel process is disclosed for PTR glass sensitization to visible region by...
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