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8149486 |
Recording device, recording/reproducing method, and reproducing method
A hologram recording and reproduction method is configured such that the number of values which can be implemented per one pixel is increased from two according to a conventional method to three or...
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8149485 |
Dynamically reconfigurable holograms with electronically erasable programmable intermediate layers
Dynamically reconfigurable holograms with electronically erasable programmable intermediate layers are disclosed. An example apparatus includes first nanowires, each of the first nanowires having...
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8085452 |
Holographic imaging systems with DC balance
A holographic imaging system includes an electrical addressable spatial light modulator (EASLM) and an optically addressable spatial light modulator (OASLM). A read light is configured to...
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8072660 |
Hologram recording apparatus and hologram reconstruction apparatus
A hologram recording apparatus includes a signal-beam spatial light modulating section, a reference-beam spatial light modulating section, and a control unit. A signal beam pattern generates a...
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8049941 |
Method for the compensation of an inhomogeneous brightness perception in holographically reconstructed scenes
To compensate for an inhomogeneous brightness perception in a holographic reconstruction of 3D-scenes (4), a computing means encodes modulator cells of a SLM with a hologram point data pattern....
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8035873 |
Hologram recording method and hologram recording device using generating light patterns
A hologram recording method includes generating light of a pattern in which a plurality of unit blocks, which include at least one pixel and express luminance, are arrayed, the pattern being...
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7999984 |
Apparatus and method to encode information holographically
A method to encode information holographically, wherein the method provides information, and generates a plurality of data images, wherein each data image comprises a portion of the information....
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7990594 |
Phase mask for holographic data storage
The present invention relates to a phase mask for holographic data storage, and to a method and an apparatus for reading from and/or writing to holographic storage media using such a phase mask....
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7967445 |
Image projecting apparatus and image projecting method
An image projecting apparatus enables the formation of a projected image faithful to original image information by reducing degradation in the projected image due to decrease in imaging performance...
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7952776 |
Hologram reading apparatus, hologram reading method, hologram recording apparatus and hologram recording method
A hologram reading apparatus includes: a unit for holding a hologram recording medium in which data page is recorded by irradiating as a single beam both reference light and signal light modulated...
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7907773 |
Apparatus and method for holographic information storage and retrieval
A method is disclosed to store and retrieve information using holographic data storage media. The method provides original data, generates a first image of that original data, and encodes that...
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7889406 |
Apparatus and method to align the elements of a holographic information data storage system
A method to align the write channel portion of a holographic data storage system. The method establishes a write threshold correlation factor, provides a reference beam, and illuminates a...
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7826114 |
Hologram recording apparatus, hologram recording method and optical recording medium
A hologram recording method is disclosed in which: signal light includes a plurality of arranged reversal regions in which lightness and darkness of plural pixels of a light and dark image is...
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7821692 |
Method of and apparatus for recording/reproducing data on/from holographic storage medium
A method of and apparatus for recording/reproducing data on/from a holographic storage medium. The method of recording data on a holographic storage medium in which holograms containing data by...
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7796312 |
Holographic recording method and holographic recording apparatus
A holographic recording apparatus 10 realizes multilevel gray-scale recording by: controlling a reflection type spatial light modulator (DMD 18D) via a control unit 24 so that an object beam in an...
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7768683 |
Apparatus and method to align the elements of a holographic information data storage system
A method to align the write channel portion of a holographic data storage system, wherein the method establishes a write threshold correlation factor, provides a reference beam, and illuminates a...
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7755819 |
Hologram recording device
A hologram recorder (A2) includes: a light source (10) for emitting a coherent beam; a spatial light modulator (20) provided with unit areas having a plurality of beam reflection elements (21) to...
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7755820 |
Two-dimensional modulation method for hologram recording and hologram apparatus with encoder for driving SLM displaying boundary portion
To provide a two-dimensional modulation method for hologram recording which is capable of preventing degradation of reconstructing performance when positional shift occurs and which enables...
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7719734 |
Hologram recording device
A hologram recording device records holograms by interference between an recording beam and a reference beam. The device includes an objective lens exhibiting a predetermined aberration. It is...
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7715072 |
Hologram retrieval method and holographic recording and reproducing apparatus
Provided is a hologram retrieval method and a holographic recording and reproducing apparatus for preventing an increase in SNR, a decrease in retrieval accuracy, or the retrieval itself from being...
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7692835 |
Hologram recording apparatus, hologram recording method, and hologram recording medium
A recording medium, a recording apparatus, and a recording method. Recording data is recorded as element holograms on a hologram recording medium, a synchronization signal selected from among a...
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7684097 |
Recording apparatus and phase modulation device
A recording apparatus performing at least recording with respect to a hologram recording medium is disclosed. The recording medium includes: a light emitting means for emitting light to be radiated...
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7672031 |
Hologram recording medium, hologram reproducing apparatus, hologram reproducing method, and hologram sheet
A hologram recording medium includes a first element hologram and a second element hologram. On the first element hologram, main data is recorded such that the main data is converted into a...
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7576899 |
Hologram recording device and phase mask having a diffusing pattern with a minimum unit in relation to a minimum unit of a spatial modulator
A hologram recording device for recording interference fringes between reference light and signal light modulated by data displayed in a spatial modulator in a hologram recording material, the...
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7557970 |
Hologram recording method, hologram recording device, hologram playback method, and optical recording medium
A hologram recording method, which records signal light onto an optical recording medium as a hologram, includes: placing a signal light region, which generates signal light, and a reference light...
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7483191 |
Holographic recording method, holographic memory reproduction method, holographic recording apparatus, and holographic memory reproduction apparatus
A holographic recording and reproduction apparatus has a spatial light modulator for converting digital information to a two-dimensional image and for intensity modulating an object beam based on...
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7333252 |
Method of writing a composite 1-step hologram
A method of writing a single or double parallax composite 1-step hologram is disclosed. Digital data is acquired from a real or virtual object and is described by a luminous intensity tensor. A...
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7310173 |
Hologram recording method, hologram recording reproduction method, hologram recording device, hologram recording/reproduction device and hologram reproduction device
In the hologram recording and hologram-record reproduction using a one-dimensional optical modulator, the one-dimensional optical modulator where a plurality of light-modulating pixels are arranged...
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7274497 |
Holographic recording medium, method for adding address information to same, and method of addressing
Provided are a holographic recording medium, a method for adding address information to the holographic recording medium, and a method for addressing that can identify two-dimensional information...
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7262892 |
Hologram reconstruction method and device
There is provided a hologram reconstruction method including: onto an optical recording medium in which a hologram is recorded by simultaneously irradiating the Fourier transformed signal beam...
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7193756 |
Piezoelectric element, method for fabricating the same, inkjet head, method for fabricating the same, and inkjet recording apparatus
A piezoelectric element includes a first electrode film; a piezoelectric layered film including a first piezoelectric thin film formed on the first electrode film and a second piezoelectric thin...
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7088481 |
Holographic recording techniques using reference zone of spatial light modulator
The invention is directed to holographic recording techniques that generate a data encoded object beam and a reference beam using a spatial light modulator of the holographic recording system. An...
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7088482 |
Holographic recording techniques using first and second portions of a spatial light modulator
The invention is directed to holographic recording techniques that generate a data encoded object beam and a reference beam using a spatial light modulator of the holographic recording system. An...
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7085028 |
Hologram recording apparatus, hologram recording method, and hologram recording medium
A hologram recording apparatus, a hologram recording method and a hologram recording medium reduce noise components generated by a phase modulation type spatial light modulator, thus permitting...
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6924942 |
Holographic storage lenses
Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a single-component design. The lenses can be used to both record to photorefractive...
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6710901 |
Method and apparatus for two-photon, volumetric spatially resolved holographic data storage in photosensitive glass
A method for the generation of volume spatially-resolved holographic data storage within a photosensitive glass sample that incurs changes of optical properties in response to two-photon...
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6646773 |
Digital micro-mirror holographic projection
The present invention relates to a method and apparatus for display of three-dimensional images and production of mega-channel phase-encoded optical communications. In certain embodiments, the...
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6414763 |
Digital holographic camera system and method having removable media
A digital electronic camera includes a holographic medium, an imaging array disposed at a focal plane for converting optical information to digital information; and an optical system configured to...
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6157473 |
Holographic storage system incorporated therein a parabolic mirror
A holographic storage system implements both a rotational and an angular multiplexings in combination. The system comprises a light source, a pair of wedge prisms, a beam splitter, a first, a...
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6072608 |
Compact architecture for holographic systems
An architecture for holographic data storage and processing integrates multifunctional silicon-based optoelectronic devices, rewritable holographic material, optical devices and other...
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6040930 |
Volume holographic storage using rotated signal beam encoder
The data encoder (e.g. an amplitude spatial light modulator, ASLM) in a volume holographic storage system is rotated by 45° relative to the normal to the plane of the reference and signal beams, ...
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6023355 |
Coded-wavelength multiplex volume holography
A method for coded-wavelength multiplexing according to which a signal waves Si (r) is recorded in a holographic medium in a counter-propagating geometry using corresponding writing reference waves...
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5963347 |
Holographic neurochip
The invention relates to an opto-electronic integrated circuit which is optically connected by holograms. An optimum arrangement for as high an integration density as possible of the light sources,...
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5838469 |
Apparatus and method for processing data stored in page-wise memory
Embodiments of the invention include a data receiving apparatus and method of a holographic or other page-wise memory system for processing information read from the memory system's storage medium....
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5812288 |
Holographic storage of digital data
Bit error rate in holographic storage/reconstruction is reduced by 2-dimensionally dispersing symbols constituting codewords so that no two codeword-common symbols occupy a single row or column on...
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5703702 |
Holographic synthesis
A tight packed array of amplitude controlled in-phase light emitters produces dynamic real holographic images. A partially reflecting mirror is applied to a planar array of amplitude controlled...
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5696613 |
Method and apparatus for multiplexing data in different planes of incidence of a thin holographic storage media
A holographic data storage system includes a laser (12) for generating both data and reference beams. The reference beam is deflected by an optic system such that the reference beam can be directed...
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5638193 |
Method and apparatus for azimuthal multiplexing of holograms
A holographic storage system and method are provided in which a light source (12) is used to generate a coherent light beam which is split into a reference beam (18) and an object beam (20). The...
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5502581 |
Hologram manufacturing method and apparatus
A hologram manufacturing apparatus and a hologram manufacturing method for manufacturing a hologram optical device by a split exposure method are disclosed. The manufacturing apparatus comprises...
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5488494 |
Packaging system for holographic storage media
A package for a holographic storage media (10) is provided that utilizes a slide tray (43) for containing a plurality of slides (102). Each of the slides (102) is comprised of an opaque casing...
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