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8149487 |
Optical apparatus
An optical apparatus includes: a focusing lens that focuses light which is one of recording light being irradiated to an optical recording medium with reference light for recording a hologram and...
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8134765 |
Hologram recording and reconstruction apparatus
A hologram recording and reconstruction apparatus records and reconstructs a hologram in a recording layer of a holographic recording medium using a signal light beam and a reference light beam....
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8129703 |
Intraoral imaging system and method based on conoscopic holography
A conoscopic holographic system and a method for imaging a scene characterized by a surface having a three-dimensional shape. The system utilizes an optical source, which illuminates the scene with...
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8130430 |
Holographic storage device and method using phase conjugate optical system
A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data...
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8125698 |
Systems and methods for producing wide field-of-view holographic displays
Hologram recording devices and techniques can be employed to produce wide field-of-view holograms. A lens can be used to couple an object beam into a holographic recording material without...
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8077366 |
Holographic storage device having an adjustment mechanism for a reference beam
A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data...
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8068264 |
Method and apparatus for recording holographic stereograms elements using replacable elements
Methods and devices are described for creating and printing holographic stereograms and holographic optical elements using computer rendered images or using computer processed images. Various...
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8049942 |
Multiplexed holographic recording apparatus and method and holographic reproduction apparatus and method
A multiplexed holographic recording apparatus records multiplexed holograms in a plurality of recording regions that are formed on a holographic recording medium. In particular, the apparatus first...
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8009340 |
Apparatus and method for recording fresnel holograms
An apparatus for producing a hologram of an object includes a light source that emits an incoherent electromagnetic wave toward the object, and a masking device configured to display a mask,...
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8005314 |
Extended depth of field imaging for high speed object analysis
A high speed, high-resolution flow imaging system is modified to achieve extended depth of field imaging. An optical distortion element is introduced into the flow imaging system. Light from an...
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7940438 |
Hologram reading apparatus, hologram reading method, hologram recording apparatus and hologram recording method
A hologram reading apparatus includes: a unit holding a hologram recording medium in which data page is recorded by irradiating as a single beam both reference light and signal light modulated by a...
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7916369 |
Holographic recording and reproducing apparatus
A holographic recording and reproducing apparatus includes a spatial light modulator, a Fourier transform lens, a reverse Fourier transform lens, a Charge Coupled Device (CCD) image sensor, and a...
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7905407 |
Electro-optical lens mounting assembly and method in electro-optical readers
A lensholder holds at least one fixed optical lens and a variable focusing element in a spaced relation along an optical path through which light passes in an electro-optical reader. The variable...
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7880945 |
Hologram projection screen and its manufacturing method and system as well as its applications
A method for manufacturing a hologram projection screen includes the steps of: 1) recording hologram lens information on a photoresist plate; 2) metalizing the photoresist plate that has been...
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7848204 |
Holographic storage and regeneration system having servo mechanism
A holographic storage and regeneration system includes a holographic recording medium, a light source, a spatial light modulator, and a conjugate servo light guidance portion. The light source...
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7847238 |
Holographic microfabrication and characterization system for soft matter and biological systems
A method and system for micromanipulation of objects of any shape. The method and system creates various forms of holographic optical traps for a variety of commercial purposes. Some alternate...
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7835052 |
Hologram recording method and hologram recording device
There is proposed a hologram recording method that includes: generating signal light by superimposing a periodic intensity distribution or phase distribution on an intensity distribution of light...
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7813018 |
Method and apparatus for recording one-step, full-color, full-parallax, holographic stereograms
Holographic stereograms and holographic optical elements are printed using computer rendered images of three-dimensional computer models or using computer processed images. A coherent beam is split...
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7813017 |
Method and system for increasing holographic data storage capacity using irradiance-tailoring element
A method and system is disclosed for increasing the holographic storage capacity of a holographic recording medium using an irradiance-tailoring (e.g., optical) element by changing the irradiance...
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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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7742209 |
Monocular holographic data storage system architecture
A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data...
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7738152 |
High areal density holographic data storage system
An apparatus for recording or reading high areal density holographically stored information with high signal-to-noise ratio. The apparatus comprises a holographic imaging system for recording or...
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7724414 |
Spatial light modulator
A spatial light modulator applied to the collinear volume holographic storage system uses a hollow phase modulator to modulate the surrounding portion of an incident light to be a reference light,...
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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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7712982 |
Actuator
An actuator includes a rotor, a stator containing the rotor, and a bearing to support the rotor to be rotatable with respect to the stator about the central axis of the rotor and an axis...
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7710624 |
Controlling the transmission amplitude profile of a coherent light beam in a holographic memory system
Holographic systems which shape coherent light beams are disclosed. These holographic systems may beam-shaping devices positioned in the path of coherent light beams to shape a coherent light beam...
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7633662 |
Holographic drive head alignments
Structures, subassemblies, devices, systems, and subsystems selected from: (1) a unitary holographic drive head assembly mounting structure; (2) an assembly including a unitary holographic drive...
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7616885 |
Single lens auto focus system for stereo image generation and method thereof
The invention presents a single lens auto focus system of stereo image generation and a method thereof. The stereo three-dimensional (3D) image capturing method of a single lens auto focus camera,...
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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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7538916 |
Document lighting device, image reader, color document reader, and image forming device
In a document lighting device, each of the plurality of the light emitting elements arrayed in a light source unit is arranged in a vicinity of a focal point on a cross section in a sub-scanning...
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7525706 |
Data page pixel shaping for holographic recording
The shaping of pixels of a data page for holographic recording, a holographic recording medium including data pages with shaped pixels, and apparatuses for writing to or reading from such...
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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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7480085 |
Operational mode performance of a holographic memory system
Aspects of the present invention are generally directed to a holographic system. Generally, aspects of the present invention are directed to allocating power of a light beam generated by a coherent...
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7477588 |
Apparatus for and method of recording and reproducing holograms
The number M of a plurality of multiplexed recording mediums to be recorded in a projected area S on the surface of a recording medium satisfies the equation (1′) where n represents the r...
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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...
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7385741 |
Holographic recording system and optical chopper
A holographic recording system with a simple structure is provided that can make a holographic recording beam follow a recording medium traveling even at high speed. The holographic recording...
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7372602 |
Method for recording and reproducing holographic data and an apparatus therefor
A holographic recording and reproducing method for recording data in a holographic recording medium comprising a recording layer in which data are to be recorded as phase information of light by...
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7339711 |
Angle-multiplexing hologram recording device, method, hologram reproduction device, and method
A hologram recording apparatus (100) includes a record angle change device (19) capable of relatively changing the record angle of a hologram recording medium (200) relative to signal light (L3)...
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7333253 |
Multiplex recording type hologram recording device, method, hologram reproduction device, and method
A hologram record apparatus (100) includes a parameter set device (19), a move device (20), and a control device (18). The parameter set device (19) modifies parameters for multiple recordings such...
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7324286 |
Optical beam steering and switching by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency PTR Bragg gratings
Non-mechanical optical beam steering and switching is produced by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency volume Bragg gratings...
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7289255 |
Hologram apparatus, positioning method for spatial light modulator and image pickup device, and hologram recording material
The present invention provides a hologram apparatus for recording interference fringes formed from reference light and signal light optically spatially modulated by a spatial light modulator on a...
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7239594 |
Self-referenced holography using element formed on a holographic medium
The invention is directed to self-referenced holographic recording techniques that make use of an element of a holographic medium to create a reference beam from a zero frequency Fourier component...
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7227675 |
Hologram recording medium, recording/reproducing apparatus and method therefor
A hologram recording medium in which data is recorded at a high density, the input of a reference beam to an area to which data is not to be recorded of a recording layer is prevented when...
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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...
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7180644 |
Holographic storage lenses
Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a two-component design. The lenses can be used to both record to photorefractive...
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7154646 |
Optical recording apparatus and optical recording/reproducing apparatus
An optical recording/reproducing apparatus having excellent resistance against vibration and noise. In recording, coherent light is polarization-modulated with a spatial light modulator to generate...
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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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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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