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7447312 Method and apparatus for secure ultrafast communication  
The present invention describes an ultrafast secure data communication system that can link remote users to an encrypted database with holographic-stored data and a high security and ultrafast...
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...
7437533 Quantum information processing device and method  
Quantum information processing device includes resonator incorporating material containing physical systems, each of physical systems having at least four energy states, transition between two...
7436537 Distributed system for producing holographic stereograms on-demand from various types of source material  
A distributed system for producing holographic stereograms (holograms). A data acquisition station is typically remote from image processing, printing, and replicating stations. The data...
7426042 Image forming system and maintenance execution program  
There is provided an image forming system that are capable of preventing a user or operator from forgetting to carry out a maintenance operation based on required sub-maintenance items after...
7424185 Stretching and compression of laser pulses by means of high efficiency volume diffractive gratings with variable periods in photo-thermo-refractive glass  
High efficiency reflective volume Bragg gratings with chirped gratings recorded in photo-thermo-refractive glass having an absolute diffraction efficiency exceeding 95% in transmitting and...
7413223 Hologram inspection device  
An inspection device in accordance with the present invention is configured so that a light source used for irradiating light, and a reflection-type prism that irradiates the light from the light...
7391911 Method and apparatus for compressing holographic data  
An apparatus for compressing holographic data includes an image capture device for capturing an image of an interference pattern reconstructed by irradiating a reference beam and converting the...
7388694 Method, program and system for image drawing  
Laser information is prepared which indicates the irradiation interval and intensity level to be irradiated on an optical disc in advance. Then, when image drawing is indicated together with the...
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...
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...
7307767 Methods for calculating multilayer holograms, method for producing multilayer holograms and storage medium comprising a multilayer hologram  
A method for the calculation and storage of a computer-generated multilayer hologram with more than or equal to 2 holograms includes the following steps. Field A O of a readout beam and field A R ...
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...
7298534 Off-axis holographic light concentrator and method of use thereof  
A light receiving apparatus comprises a holographic optical device having a plurality of holograms recorded in a light receiving surface thereof. The holographic optical device is configured to...
7298532 Single beam write and/or replay of spatial heterodyne holograms  
A method of writing a spatially heterodyne hologram having spatially heterodyne fringes includes: passing a single write beam through a spatial light modulator that digitally modulates said single...
7290803 Reflective article and method of manufacturing same  
A reflective printed article includes a substrate having a top surface and a bottom surface with a graphic image printed thereon. A reflective or glossy ink layer is printed over the entire top...
7286291 Show-through security packaging system for digital media  
A system of visual authentication of digital media. A visual means is provided at the point of purchase for a user to verify that the source of software is genuine. An authentication image is...
7286197 Liquid crystal display having high brightness and enhanced viewing angle  
A liquid crystal display (LCD) realizes a high brightness by using cholesteric liquid crystal (CLC) in a color filter and a polarizer, and improves viewing angles by using a hologram diffuser. The...
7259897 System, method and apparatus for direct imaging in ultrasonic holography  
An acoustical holographic imaging method and apparatus for introducing a reference wave into a hologram surface such that the reference wave does not interfere with an object placed adjacent to or...
7251077 Diffuse reflector and method  
A diffuse reflector comprises a substrate ( 20 ) having an asymmetric, reflective, periodic surface relief microstructure formed such that, under illumination by a multiplicity of wavelengths in a...
7230746 3D display  
A method of generating a Computer Generated Hologram (CGH) using the diffraction specific algorithm allows a curved wavefront to be produced from a single hogel, rather than the planar waves of the...
7227530 Assembly of independent mouse or track ball device using keyboard as an operational relay with keyboard  
An independent mouse or trackball device assembly uses a keyboard as an operational relay providing for the wired or wireless coupling of the mouse or trackball device to the keyboard assembly.
7209270 Method and apparatus for phase correlation holographic drive  
A holographic storage apparatus for recording data in a holographic medium includes at least one light source for generating a reference beam and a signal beam. The reference beam is preferably a...
7197160 Geographic information systems using digital watermarks  
The present invention relates to systems and methods for managing images and related information. In one implementation, geographic information system (GIS) layer information is registered or...
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...
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....
7148468 Mirror angle measurement and servo control apparatus for holographic digital data storage system  
A mirror angle measurement and a servo control apparatus for a Holographic Digital Data Storage (HDDS) system is disclosed. The mirror angle measurement apparatus includes a first mirror having a...
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....
7136206 Method and apparatus for implementing a multi-channel tunable filter  
The present invention provides a multi-channel tunable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings imprinted into a filter material, such...
7126730 Electro-holographic lens  
An electro-holographic lens device comprising: an active layer made from a transparent photo-refractive material, whose refractive index may be locally modified by locally applying an electric...
7112359 Method and apparatus for multilayer optical articles  
The present invention provides a method and apparatus for a multilayer optical articles. A method comprises forming a first multilayer article with a first substrate and a second substrate with a...
7102803 Apparatus and method of using a thermal design for wavelength division multiplexed holographic filters  
A temperature compensated apparatus for filtering light is comprised of a holographically recorded grating defined in a photosensitive layer for providing optical filtration for light incident on...
7094502 Methods for transferring holographic images into metal surfaces  
A method for impressing holographic images or holograms in the surface of metal objects such as aluminum cans, sheet metal or metal foil. The surfaces of metal shims and print rolls bearing...
7072538 Planar reconfigurable optical add/drop module  
A reconfigurable optical add/drop module (ROADM) for dynamically adding or dropping various wavelengths of an optical signal without having to physically replace the module with a...
7072114 Optical pickup using an optical phase plate and which is compatible with optical recording media of different types  
An optical pickup apparatus having laser light sources emit a first light beam having a relatively shorter wavelength for a DVD and a second light beam having a longer wavelength for a CD-R, an...
7048689 Ultrasonic receiving apparatus and ultrasonic receiving method  
To reduce the cost while maintaining the real time environment in receiving ultrasonic waves in an ultrasonic receiving apparatus which is capable of reducing changes in detection sensitivity due...
7034970 Optical recording medium and method for producing such an optical recording medium  
The present invention relates to a method for producing an optical recording medium. In the method, on the surface of a recording layer formed by spin-coating a first coating solution containing a...
7023592 Band-pass filter and image display apparatus  
A band-pass filter has a reflecting optical element having a fixed reflection angle selection region for wavelengths of a given region, and has an optical path such that reflection is performed at...
6995883 Security document with an optical security area  
A security document, such as a banknote, includes an optical security area having a first periodic optical structure and a security sign provided on the security area and configured to circumscribe...
6987591 Volume hologram  
A volume hologram for modifying a characteristic of an input microwave beam and a method for manufacturing thereof are disclosed. The hologram is fabricated from a multi-layer artificial dielectric...
6985293 Optical pickup using an optical phase plate and which is compatible with optical media for different types  
An optical pickup apparatus having laser light sources emit a first light beam having a relatively shorter wavelength for a DVD and a second light beam having a longer wavelength for a CD-R, an...
6967755 Holographic ROM system including an alignment apparatus for aligning a holographic medium and a mask  
A holographic ROM system includes an alignment apparatus for aligning a holographic medium for storing data and a mask with patterns of the data. The alignment apparatus has a beam irradiating unit...
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...
6961160 Recording material for holograms, manufacturing method thereof, recording medium for holograms, hologram recording method and hologram reproduction method  
A recording material for holograms includes a metal oxide porous body with an oxygen donor substance in the pores. In addition, a method manufactures a recording material for holograms that include...
6961159 Holographic viewing device, and computer-generated hologram for the same  
The invention relates to a holographic viewing device that enables a given pattern to be properly viewed in place of light sources in a scene and is easy to fabricate and assemble with consistent...
6958836 Hologram carrier  
The invention relates to a hologram carrier having a hologram surface and a reference surface to facilitate the acquisition of the hologram surface by a device. In this case, provision is made for...
6956681 Integrated reading and writing of a hologram with a rotated reference beam polarization  
A method for monitoring diffraction while recording a hologram includes: generating a source beam; generating a data beam by projecting a first component of the source beam through a data source,...
6952295 Hologram screen and hologram display  
A hologram screen 1 displays an image by diffracting and scattering image light 31 projected from an image projection apparatus 2 . An upward/downward light scattering device 13 , which...
6940653 Radiation conditioning system  
A holographic imaging system and method includes a radiation source for generating radiation. A data base has a set of elements, each element is indicative of a trajectory of a light ray exiting a...
6924912 Holographic screen  
A holographic screen for displaying images by diffracting and dispersing an image beam projected by an image projector comprises a main hologram for diffracting and dispersing an incident image...
Matches 1 - 50 out of 439 1 2 3 4 5 6 7 8 9 >