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7423792 Holographic printer  
A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from...
7394581 Hologram recording apparatus and method  
A hologram recording apparatus includes a laser light source for emitting laser light, a light splitter for splitting the laser light emitted from the laser light source into a signal beam and a...
7394139 Optical modulator module package using flip-chip mounting technology  
Disclosed herein is an optical modulator module package using a flip-chip mounting technology, in which an optical modulator device is hermetically mounted using the flip-chip mounting technology....
7382508 Holographic recording medium and writing method therefor  
A holographic recording medium having a recording layer on which holograms are formed by interference between an object beam and a reference beam to thereby record information. The recording layer...
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...
7355767 Hologram recording method and hologram recording apparatus  
A hologram recording method includes generating a signal beam with data formed by superimposing pattern data, the pattern data representing a pattern in which a large number of plural kinds of...
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...
7324255 Spatial optical modulator  
A spatial light modulator, in which light modulation elements are arranged in a same plane. In the spatial light modulator, a plurality of the light modulation elements are arranged such that there...
7304775 Actively stabilized, single input beam, interference lithography system and method  
An interference lithography system is described that is capable of exposing high resolution patterns in photosensitive media and employing yield increasing active stabilization techniques needed in...
7295356 Method for improved holographic recording using beam apodization  
An apodization system for achieving a substantially uniform intensity profile of a modulated reference beam on a holographic recording medium. The substantially uniform intensity profile serves to...
7292755 Optical resonator formed in a planar optical waveguide with a distributed optical structure  
An optical apparatus comprises a planar optical waveguide having at least two reflectors. The planar optical waveguide substantially confines in at least one transverse spatial dimension optical...
7286732 Distributed optical structures designed by computed interference between simulated optical signals  
An optical apparatus comprises a planar optical waveguide and at least one set of diffractive elements formed in or on the waveguide. The waveguide is arranged to confine propagating optical...
7283286 Hologram recording/reproducing device and optical unit  
A hologram recording/reproducing device includes a laser light source emitting laser light; a spatial light modulator generating signal light and reference light from the laser light emitted from...
7262914 Method and apparatus for generating and detecting duality modulated electromagnetic radiation  
A generator of duality modulated radiation, of which the irradiance, the wave intensity, or both, are varied from ordinarily equivalent levels, either for purposes of providing energy depleted or...
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...
7224867 Holographic spectral filter  
Method and apparatus are contemplated for receiving from an input, an optical signal in a volume hologram comprising a transfer function that may comprise temporal or spectral information, and...
7193879 Techniques for multiple frequency chirp readout of material with inhomogeneously broadened absorption spectrum  
Techniques for reading the spectral content of a spatial-spectral grating in an inhomogeneously broadened transition (IBT) material include directing multiple probe waveforms to probe a spatial...
7190859 Distributed optical structures in a planar waveguide coupling in-plane and out-of-plane optical signals  
A slab optical waveguide confines in one transverse dimension optical signals propagating in two dimensions therein, and has a set of diffractive elements collectively arranged so as to exhibit...
7187481 System and method for providing gain and thresholding to a holographic data parallel recording and replication system incorporating independent angular address assignment  
System and method for providing gain and thresholding to a holographic data parallel recording and replication system incorporating independent angular address assignment. A plurality of...
7184183 Hologram recording/reproducing apparatus and hologram recording/reproducing method  
This invention provides a hologram recording apparatus for recording an interference fringe, generated by interference of a first light beam subjected to spatial light modulation by recording data...
7161723 Scheme capable of providing gain and thresholding to the parallel recording and replication of holographic media  
A system and method capable of providing high data rate data copying and recording in holographic data storage while maintaining the copied data's signal-to-noise ratio. This is achieved by using...
7142336 Recording medium and hologram reader  
A recording medium including a storage part to hold a medium identifier intrinsic to each recording medium, and a hologram generated using a reference beam modulated with the medium identifier....
7127138 Apparatus and method for directing a light beam to a target  
An apparatus for directing light beams onto a target comprising a beam splitter for splitting a main beam into a first split beam and a second split beam; a first beam path for the first split...
7120334 Optical resonator formed in a planar optical waveguide with distributed optical structures  
An optical apparatus comprises a planar optical waveguide having at least two sets of diffractive elements. The planar optical waveguide substantially confines in at least one transverse spatial...
7088480 Distortion-tolerant 3-D object recognition by using single exposure on-axis digital holography  
Disclosed herein is a method, system and computer readable medium for a distortion-tolerant 3-D object recognition that may include recording a single exposure digital hologram of a 3D object on a...
7085217 Apparatus and method for recording optical information, apparatus and method for reproducing optical information, and apparatus and method for recording/reproducing optical information  
In a servo operation, position-controlling light, which is red light, is projected onto a recording medium so as to converge to a minimum diameter on a reflecting surface of the recording medium....
7081977 Angular multiplexing apparatus for holographic storage medium  
An angular multiplexing apparatus for a holographic storage medium. The angular multiplexing apparatus includes a reconstructing reference beam generator, translated in parallel to a number of...
7068934 Optical interconnect  
An optical interconnect comprises an input configured to receive light of a plurality of light wavelengths and a plurality of holographic optical elements. Each element configured to reflect one...
7062128 Holographic spectral filter  
Method and apparatus are contemplated for receiving from an input, an optical signal in a volume hologram comprising a transfer function that may comprise temporal or spectral information, and...
7057580 Methods for forming/recording extremely high resolution and 3D images and devices for same  
A system and method for forming an optical image having a screen on which is displayed an image which is to be reproduced on an image display plane. The image on the screen is optically transmitted...
7035006 Screen for image display apparatus, method for manufacturing screen for image display apparatus, and image display apparatus  
A screen for image display apparatus according to the present invention has a base member, a light absorption layer formed on the base member and adapted for absorbing light of a visible light...
7031038 Hologram apparatus capable of detecting and correcting distortion of hologram image  
A hologram apparatus includes a light beam interfering section for allowing reference and signal light beams to interfere to form a hologram recording region; a reproducing section for allowing the...
7018684 Block copolymers for optical data storage  
Block polymers suitable for the preparation of data storage media are disclosed. The media produced of the inventive of the polymers has thickness in the range of a few millimeters. In contrast...
7012722 Holographic recording apparatus  
A holographic recording apparatus which can stably record data to be recorded onto a recording medium. The holographic recording apparatus of the present invention includes: a light source for...
6980831 Radio communication base state system including optical advanced base station  
A wireless communication base station system of the present invention includes a wireless key base station, an optical forward base station, and an optical transmitter which connects the wireless...
6980337 Apparatus and method for recording digital data on a holographic storage system  
A holographic apparatus includes a mask for modulating a signal beam to generate a modulated signal beam; a conical prism, which has a cone portion and a base portion, for refracting a reference...
6975443 Multi-beam pattern generator  
A scanning pattern generator and a method for microlithographic multi-beam writing of high precision patterns on a photosensitive substrate ( 11 ), the system comprising a light source ( 1 ),...
6963354 High resolution imaging lidar for detecting submerged objects  
An image lidar includes a laser for generating light beam pulses in a line scan to illuminate an area surrounding a target. A controller selects pulse width and pulse rate of the light beam pulses...
6961161 Holographic recording and reproducing apparatus  
An image detected by a CCD image sensor 108 when only a non-modulated signal light is applied to a holographic memory 120 in which data is not recorded is ensured as a noise pattern. When data...
6943924 Apparatus and method for digital holographic imaging  
The present invention is related to a method for performing digital holographic imaging (DHI), said DHI being characterized by the fact that images of a sample are obtained by applying numerical...
6900914 Optical information recording and reproducing apparatus having volume holographic memory  
A description is provided of an optical information recording and reproducing apparatus having a volume holographic memory. The apparatus is capable of recording an interference pattern in the...
6862121 Method and apparatus for holographic recording of fast phenomena  
Holographic methods for recording fast movies whose speed is limited by the laser pulse duration if the recording material has sufficient sensitivity to reliably record a frame of the fast event...
6862120 Hologram recording medium, hologram recording method and hologram recording and reproducing apparatus  
In a hologram recording method for forming a plurality of areas of a refractive index light interference pattern of a coherent signal light beam in accordance with information data within a...
6852452 Method of fabricating hologram screen and hologram imaging apparatus  
A method of fabricating a hologram screen having a large visual range and a hologram imaging apparatus used for the particular method of fabricating the hologram screen are disclosed. A plurality...
6850346 Method and apparatus for storing and retrieving a sequence of digital page data  
In a storing mode of an apparatus for storing and retrieving a sequence of digital page data, a first/second complex reference beam and a modulated signal beam converge on a storing location to...
6844949 Method and apparatus for storing and retrieving digital page data  
In a storing mode of an apparatus for sequentially storing and retrieving digital page data, a first and second complex reference beams and a modulated and second signal beams converge on a...
6819460 Apparatus and methods for routing of optical beams via time-domain spatial-spectral filtering  
Apparatus and methods are disclosed for spatially routing an optical pulse (data pulse) of an electromagnetic radiation and containing a specific address temporal profile and possibly additional...
6803153 Optical storage medium, optical storage method; optical storage apparatus, optical reading method, optical reading apparatus, optical retrieving method and optical retrieving apparatus  
An optical storage medium of the present invention enables storage of data with high precision at high speed, and rewriting of data at high speed without an erasing process. Optical storage,...
6798547 Process for holographic multiplexing  
A method of recording holograms includes: generating a first signal-beam from a signal-beam source and a first reference beam from a reference-beam source; recording a first hologram in a...
6760134 Multicolor electronic holography and 3D image projection system  
A three dimensional true color holographic imaging system using three primary color Fresnel-Zone-Pattern laser generators combined as a single beam that scans the target and the reflections of...
Matches 1 - 50 out of 235 1 2 3 4 5 >