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8941904 Hologram sheet and hologram observation sheet using same, and blinding device  
A main object of the present invention is to provide a hologram observation sheet with a transmission type hologram formed integrally with other members, to be attached with various members for...
8917431 Holographic color display device having a color filter with parallel, vertical color stripes of primary colors  
A color filter with parallel, vertical color strips of the RGB base colors associated with the image separating element, the color strips repeating horizontally within the color filter in periodic...
8712185 High-accuracy centered fractional fourier transform matrix for optical imaging and other applications  
Methods for numerically generating a centered discrete fractional Fourier transform matrix on a computer, the centered discrete fractional Fourier transform matrix of size N by N where N is an odd...
8665504 Digital holography device and phase plate array  
A digital holography device includes a light source that emits light, the light source being provided for supply of object light beams formed by radiation, transmission, scattering, reflection, or...
8659810 Apparatus for the exact reconstruction of the object wave in off-axis digital holography  
A method and apparatus for preparing a digital hologram representing an image of an object includes generating a measurement beam and a first reference beam, irradiating the object by the...
8593710 Holographic projection device for the reconstruction of scenes  
A holographic projection device comprises for the reconstruction of scenes at least one light source which emits sufficiently coherent light for the generation of a wave front. Further, the...
8542945 Correction of mis-focus in recorded images using centered discrete fractional fourier transformations with high-accuracy orthonormal eigenvectors  
A method for correcting mis-focus of an image created from coherent imaging using centered fractional Fourier transforms or mathematical equivalents is described. A received image is presented to...
8542421 System, apparatus and method for extracting three-dimensional information of an object from received electromagnetic radiation  
An apparatus and method to produce a hologram of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the...
8531748 Lens system for common aperture holographic storage system  
The present invention relates to a lens system for an apparatus for reading from and/or writing to holographic storage media, and more specifically to a lens system optimized for an apparatus with...
8482828 Holographic imaging display with corrected phase coding  
A holographic projection display for reconstructing a 3D-scene and a coding method that indicates an improvement of the control value of coding through an iterative Fourier...
8416480 Hologram reproducing apparatus, hologram reproducing method, and phase modulating element  
A hologram reproducing apparatus includes a first reference light path leading laser light from a laser light source so that a hologram recording medium is irradiated with first reference light; a...
8405890 System, apparatus and method for extracting image cross-sections of an object from received electromagnetic radiation  
An Apparatus and method to produce a hologram of a cross-section of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as...
8398243 Projection device for the holographic reconstruction of scenes  
The present invention relates to a projection device for holographic reconstruction of scenes, said device comprising at least one light modulator device and at least one light source which emits...
8395616 Method for rendering and generating computer-generated video holograms in real-time  
Method for real-time rendering and generating of computer-generated video holograms from three-dimensional image data with depth information, where the position and viewing direction of an...
8390676 Device and method for tracking a viewer window  
The invention relates to a method and a playback device for a two- and/or three-dimensional illustration, having at least one light source, at least one light modulation device, a display screen,...
8294694 3-dimensional image display device and 3-dimensional image display method  
A three-dimensional image display device is provided which allows a reduction in redundant calculation and high-speed obtainment of an optimum control image to be recorded on an optical wavefront...
8294749 Methods and apparatus for displaying images using holograms  
The invention relates to method, computer program code and signal processing/image display systems for displaying one or more images using holographic techniques. We describe a method of...
8284469 Apparatus for reading from and/or writing to holographic storage media  
An apparatus for reading a data page from and/or writing a data page to a holographic storage medium includes a common aperture arrangement of one or more reference beams and an object beam or a...
8279507 Hologram and holgraphic 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...
8218212 Device for the production of holographic reconstructions with light modulators  
A device for the production of holographic reconstructions having light modulators is disclosed. The device comprises at least one pixelated light modulator illuminated by at least one light...
8208184 Holographic storage system with improved data page quality  
A holographic storage system having an improved data page quality is described. The holographic storage system includes a special optical filter or a special light source for emphasizing the high...
8199388 Holographic recording system having a relay system  
According to one aspect and example, a holographic recording system includes a light source, an object for modulating an object beam from the light source, and a relay system adapted to magnify...
8194124 In-line digital holographic microscope and a method of in-line digital holographic microscopy  
A holographic microscope comprising a source configured to provide a diverging beam of radiation, a beam splitter configured to direct a first portion of the diverging beam towards an object and a...
8179578 System, apparatus and method for extracting three-dimensional information of an object from received electromagnetic radiation  
An apparatus and method to produce a hologram of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the...
8174744 Video hologram and device for reconstructing video holograms  
The invention relates to video holograms and devices for reconstructing video holograms, comprising an optical system having a light source, lens and the video hologram having cells arranged in a...
8170366 Image processing using optically transformed light  
Processing image information includes receiving light having image information. A first optical transform is performed on the light to yield a first optically transformed light, and a second...
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...
8081552 Hologram disc reading and writing apparatus and hologram disc reading apparatus  
A hologram disc reading and writing apparatus including a signal light source module, a beam splitter, a reference/reading light source, a reflector, and an optical reading head and a hologram...
8068263 Holographic storage system with reduced noise  
An apparatus for reading from and/or writing to transmission type holographic storage media is proposed, and more specifically a coaxial type apparatus for reading from and/or writing to...
8064115 Hologram recording/reproducing apparatus  
A hologram recording/reproducing apparatus includes: a coherent light source; a spatial light modulator which spatially modulates light from the coherent light source; a Fourier transform lens...
8045244 Holographic projection method and holographic projection device  
Video image data is converted into spatial frequency information using Fourier transformation. The spatial frequency information is provided to an information display unit. The spatial frequency...
8027071 Video hologram and device for reconstructing video holograms for large objects  
A video holographic display device operates so that the size of a reconstructed three dimensional scene is a function of the size of the hologram-bearing medium; the reconstructed three...
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....
7982932 Hologram decoding apparatus, hologram decoding method and computer readable medium  
A hologram decoding apparatus includes: an imaging device that receives a reproduced image obtained by reading an encoded image from a hologram recording medium in which a Fourier transform image...
7976170 Holographic projection method and holographic projection device  
According to the present invention, a plurality of video image data are converted into individual spatial frequency information using Fourier transformation. The individual spatial frequency...
7969633 Method and device for computing computer-generated video holograms  
The data defining an object to be holographically reconstructed is first arranged into a number of virtual section layers, each layer defining a two-dimensional object data sets, such that a video...
7957045 Hologram media reading apparatus  
A hologram media reading apparatus including a reference light source, a stop with gray level aperture, and an optical sensor is provided. The reference light source is disposed on one side of a...
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...
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...
7936490 System and methods for shearless hologram acquisition  
Systems and methods for shearless digital hologram acquisition, including an apparatus incorporating an illumination source configured to produce a first beam of light, which is then split by a...
7929190 Integrated planar optical device based on digital planar holography  
A method of digitally processing light waves passing through a planar structure having given functions ƒin(x, y, ω) and ƒout(x, y, ω) and consisting of a light-propagating and distributing layer...
7929189 Video hologram and device for reconstructing video holograms using geometrical calculation  
A geometrical method for working out how to encode a hologram onto a hologram bearing medium is disclosed. The method involves (a) selecting a point on the three dimensional scene to be...
7924484 Video hologram and device for reconstructing video holograms with small region encoding  
In a video hologram that enables a three dimensional scene to be reconstructed, a specific region in the hologram encodes information for a particular, single point in the reconstructed scene....
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...
RE42187 Iterative approximation environments for modeling the evolution of an image propagating through a physical medium in restoration and other applications  
Image processing utilizing numerical calculation of fractional exponential powers of a diagonalizable numerical transform operator for use in an iterative or other larger computational...
7872788 Method of digitally processing optical waves in integrated planar optical devices that operate on the principle of digital planar holography  
A method of digitally processing light waves passing through a planar structure having given functions fin(x, y, ω) and fout(x, y, ω) and consisting of a light-propagating and distributing layer....
7839548 Video hologram and device for reconstructing video holograms  
The invention relates to video holograms and devices for reconstructing video holograms, comprising an optical system that consists of a light source, lens and the video hologram that is composed...
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...
7835048 Holographic storage system with multiple reference beams  
The present invention relates to a coaxial type apparatus for reading from and/or writing to holographic storage media with multiple reference beams. The invention further relates to a beam...
7830572 Holographic storage system based on common path interferometry  
The present invention relates to a holographic storage system, and more specifically to a holographic storage system using a phase spatial light modulator. According to the invention a holographic...

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