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7623279 |
Method for holographic data retrieval by quadrature homodyne detection
Systems and methods for recovering data in a holographic memory system. The systems and methods use homodyne detection to introduce a local oscillator beam into a reconstructed data beam of the...
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7619794 |
Hologram-reproducing method and hologram-reproducing device
A hologram-reproducing method is adapted to obtain a reproduced image by irradiating a hologram-recording material with a reference-light beam so that a reproduction signal-light beam is generated...
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7597457 |
Lighting apparatus
A lighting apparatus is provided. The lighting apparatus includes a power supply housing section, a circuit board housing section, a light source housing section, a cutout portion, and a light...
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7595922 |
Hologram reconstructing apparatus and hologram reconstructing method
A hologram reconstructing apparatus configured to irradiate a hologram recording medium that stores an interference pattern of a signal beam spatially modulated by data displayed on a spatial...
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7589875 |
Intensity profile correction for data pages for holographic storage
The present invention relates to a method for recording data pages in a holographic recording medium, and more specifically to a method for compensating for sensitivity variations of the...
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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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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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7576900 |
System and method for holographic storage
A system and a method for holographic storage mainly involve forming a holographic interference pattern in a holographic recording medium. The holographic storage system utilizes a light source to...
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7573623 |
Hologram recording method using beam with very large incident angle, hologram reproduction apparatus using holographic reflector and hologram reproduction method using the same, and flat display element apparatus using holographic reflector
Disclosed is a hologram recording method using a beam with a very large incident angle, a hologram reproduction apparatus using a holographic reflector, a hologram reproduction method using the...
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7554706 |
Holographic recording method, apparatus therefor, and holographic recording and reproducing apparatus
A holographic recording method and apparatus capable of performing phase code multiplex recording without employing a phase spatial light modulator. The holographic recording apparatus 10 ...
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7548358 |
Phase conjugate reconstruction of a hologram
Methods and systems are provided for obtaining a phase conjugate reconstruction beam for use in retrieving holographic information from a holographic storage medium. These methods and systems...
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7545545 |
Fabrication process for cholesteric liquid crystal media having a volume hologram
The invention provides a process capable of fabricating a cholesteric liquid crystal medium having a volume hologram with efficiency yet without recourse to complicated steps such as an alignment...
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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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7535609 |
Hologram recording method and device
A hologram recording method comprising recording information of signal light as a reflection-type hologram on an optical recording medium, by illuminating the signal light and reference light on a...
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7508560 |
Holographic recording device and holographic recording method
A holographic recording device for multiple recording a plurality of interference fringes of a reference light and intensity-modulated signal lights in a same area or in areas slightly shifted each...
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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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7489427 |
Hologram recording device, hologram reproduction device, hologram recording method, and hologram reproducing method
In recording of an interference fringe of a reference beam and a signal beam in a hologram recording medium, at the time of multiple recording of holograms in the same recording region by varying...
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7486424 |
Holographic recording apparatus
The present invention relates to a holographic recording apparatus that records on a multiple basis information on a holographic memory. An object of the present invention is to provide a...
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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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7460286 |
Method for producing an optical device, optical device, image display apparatus, and head-mounted display
The exposure amounts of R, G, and B laser light emitted from a fabrication light source are so adjusted that the diffraction efficiency at R, G, and B wavelengths in an optical element is...
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7446916 |
Holographic recording and reproduction apparatus, and method with temperature adjustment device for semiconductor laser
A holographic memory reproduction apparatus which makes a wavelength of a reproducing laser beam coincident with a wavelength of a laser beam used for holographic recording when information is...
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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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7436560 |
Display device for a vehicle
A display device for a vehicle includes a transparent window with a light emission layer intended to separate the interior of the vehicle for emitting visible light when light is beamed onto the...
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7420720 |
Optical element and method for the production thereof
A method for producing an optical element, preferably a security feature, wherein a film having a first embossed hologram in an embossing layer is provided, and a second embossed hologram is...
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7333251 |
Holographic data recording apparatus and method
A holographic data recording apparatus includes: a signal beam patterning unit for irradiating a signal beam onto a holographic medium, the signal beam including a data pattern to be recorded; a...
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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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7324249 |
Recording and reproducing apparatus having fixed distortion correcting function
A recording and reproducing apparatus includes a reproduction signal detection unit reproducing a two-dimensional pattern previously recorded on a holographic recording medium or user data recorded...
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7319550 |
Method and apparatus for recording hologram, method and apparatus for reproducing hologram, and information retaining body
While Fourier transformation of a signal light beam is performed to perform recording during holographic recording so that a focal point is formed outside a holographic recording layer (defocus...
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7312908 |
3D image display and 3D image display method
A small, inexpensive three-dimensional image display having a structure for displaying a color three-dimensional image sharply even if a low-resolution spatial optical modulating element is used....
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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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7307768 |
Hologram recording method and hologram recording apparatus
A hologram is recorded by irradiating, with a reference light beam, a region corresponding to an intensity distribution of a signal light beam on an optical recording medium. For example, the...
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7301683 |
Hologram and holographic viewing device incorporating it
The invention relates to a hologram that enables two or more different images to be simultaneously reconstructed even in a state where the hologram is fixed in terms of relative position with...
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7277209 |
Computer-assisted holographic method and device
The method consists of computing (E 1 -E 4 ) a set of two-dimensional images in a three-dimensional geometrical space representing a virtual object from respective different viewpoints. The virtual...
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7274432 |
Radiation system, lithographic apparatus, device manufacturing method, and device manufactured thereby
A radiation system for multiplexing radiation includes two radiation sub-sources. The sub-sources each provide a certain amount of radiation. The system further includes a member with reflecting...
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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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7253934 |
Holographic recording apparatus and method for recording holograms
A hologram recording apparatus for carrying out holographic recording by emitting a signal beam and a reference beam onto a holographic recording medium includes a laser light source configured to...
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7251066 |
Holographic memory using beam steering
A method, apparatus, and system provide the ability for storing holograms at high speed. A single laser diode emits a collimated laser beam to both write to and read from a photorefractice crystal....
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7248389 |
Holographic recording and reconstructing apparatus and holographic recording and reconstructing method
A holographic recording and reconstructing apparatus includes a laser light source for emitting a laser beam, a beam splitting element for splitting the emitted laser beam into a signal beam and a...
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7244532 |
Holographic recording medium
A holographic recording medium includes a holographic recording carrier including a first light transmittable substrate, a second light transmittable substrate and a holographic recording layer...
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7215451 |
Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such holograms
A method of fabricating a hologram having a pattern made up of pixels in which a photosensitive material for forming a hologram is stacked on either a reflection-type hologram or a transmission...
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7212323 |
Methods and apparatus for mass manufacturing two-dimensional binary information on transparent substrates using phase contrast modulated templates
Methods and apparatus for making, encoding, and encrypting binary patterns for storing recorded information. One of the methods includes the steps of providing an original image, fragmenting the...
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7202984 |
Double faced double storage capacity medium
A first holographic data storage device has a first set of holograms stored thereon. A second holographic data storage device has a second set of holograms stored thereon. An opaque layer is...
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7167286 |
Polytopic multiplex holography
Disclosed is a multiplexing method and apparatus that allows holograms to be spatially multiplexed with partial spatial overlap between neighboring stacks of holograms. Each individual stack can...
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7154645 |
Holographic recording method and apparatus
A holographic recording method and a holographic recording apparatus capable of selectively rewriting or erasing only desired data without degrading data other than the desired data are provided....
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7151623 |
Holographic data-storage medium
In an example holographic data storage medium, which has a polymer film which serves as a storage layer and can be changed locally by heating, the polymer film is set up as a top layer of the data...
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7149014 |
Holographic memory using beam steering
A method, apparatus, and system provide the ability for storing holograms at high speed. A single laser diode emits a collimated laser beam to both write to and read from a photorefractice crystal....
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7149013 |
Optical element and method for the production thereof
A method for producing an optical element, preferably a security feature, wherein a film having a first embossed hologram in an embossing layer is provided, and a second embossed hologram is...
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7139109 |
Transmission type laminated hologram optical element and image display device comprising this optical element
The present invention is directed to a transmission type laminated hologram optical element constituting an image display apparatus, wherein plural transmission type hologram optical elements ( 13...
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7136207 |
Holographic display system
A holographic display system for a vehicle includes a projection unit ( 2 ), a holographic beam combiner ( 3 ), and a viewing mirror ( 4, 4 ′). The projection unit includes a light source for the...
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7133171 |
Double facing double storage capacity
A first holographic data storage device has a first set of holograms stored thereon. A second holographic data storage device has a second set of holograms stored thereon. An opaque layer is...
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