Sign up
Matches 1 - 50 out of 129 1 2 3 >


Match Document Document Title
8873119 System of displaying digital hologram based on projection and method thereof  
A system and a method perform buoyance of a 3D hologram image on a hologram display screen in a projection mode. A system of displaying a digital hologram includes: a composite hologram unit...
8804221 Stacking a visible image and a synthetic hologram  
A synthetic hologram of a first image consists of an array of coding cells each comprising light and dark portions. A second visible image is superposed to the synthetic hologram, where the light...
8705156 Holographic direct view display having an apodization device  
The invention relates to apodization in a holographic direct view display. Known apodization functions are utilized/modified for an apodization mask such that the functions reduce the intensities...
8498035 Projection type image display apparatus and image display method  
Coherent light from a laser is magnified, made into a parallel light flux, and irradiated on a hologram recording medium in which a hologram image of a scatter plate is recorded. A hologram...
8493642 Method for generating video holograms for a holographic display device with random addressing  
A method for generating video holograms for a holographic reproduction device with at least one light modulation means, wherein a scene split into object points is encoded as a whole hologram and...
8411339 Holographic imaging systems with DC balance  
A holographic imaging system includes an electrical addressable spatial light modulator (EASLM) and an optically addressable spatial light modulator (OASLM). A read light is configured to...
8400696 Three-dimensional image display and three-dimensional image displaying method  
A three-dimensional image displaying apparatus comprises a spatial light modulation element having a discrete pixel structure and expressing a hologram, an illumination optical system generating...
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 observer...
8384973 Method and device for reconstructing a three-dimensional scene with corrected visibility  
A method is disclosed for reconstructing a 3D scene made of object points in a holographic display, wherein the reconstruction is visible from a visibility region. Visibility and/or covering of...
8358454 Holographic display having improved reconstruction quality  
Disclosed is a display for the holographic reconstruction of a three-dimensional scene using means which allow a reduction of speckle patterns. Speckle patterns result in the graining of a...
8325402 System and method for synchronizing a spatial light modulator with a pulsed laser to record a hologram at the repetition rate of the pulsed laser  
A system and method that synchronizes a spatial light modulator (SLM) with a pulsed laser to record a hologram at the repetition rate of the pulsed laser for applications including holographic...
8305668 Recording and reproducing device, recording and reproducing method, recording device, recording method, reproducing device and reproducing method  
A technique for recording data onto a hologram recording medium using spatial light phase modulation corresponding to the recording data, and a technique for reproducing recorded data by properly...
8294965 Holographic reconstruction system and method with a sequence of visibility regions  
A holographic reconstruction system and method for the three-dimensional reconstruction of object light points of a scene. The system includes spatial light modulation means which modulate light...
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...
8275216 Method and system for equalizing holographic data pages  
Methods and systems for equalizing a holographic image page and for compensating nonlinearity of a holographic data storage channel are disclosed. In one embodiment, a method for equalizing a...
8264756 Device for recording holograms  
An apparatus for recording holograms on an optical medium, in particular on an optically addressable spatial light modulation device is disclosed. For this purpose, the apparatus comprises an...
8243353 Holography-based device, system and method for coded aperture imaging  
A system and related method for coded aperture sensing, comprising: passing at least one scene wavefront from a target scene through at least one original coded aperture mask onto a focal plane...
8208186 Polarization-based holographic optical reproducing apparatus including dc modulating element  
An optical reproducing method. A diffracted light is generated by irradiating a reference light onto a hologram. A combined light is generated by applying a direct-current component formed by a...
8149486 Recording device, recording/reproducing method, and reproducing method  
A hologram recording and reproduction method is configured such that the number of values which can be implemented per one pixel is increased from two according to a conventional method to three or...
8149485 Dynamically reconfigurable holograms with electronically erasable programmable intermediate layers  
Dynamically reconfigurable holograms with electronically erasable programmable intermediate layers are disclosed. An example apparatus includes first nanowires, each of the first nanowires having...
8085452 Holographic imaging systems with DC balance  
A holographic imaging system includes an electrical addressable spatial light modulator (EASLM) and an optically addressable spatial light modulator (OASLM). A read light is configured to...
8072660 Hologram recording apparatus and hologram reconstruction apparatus  
A hologram recording apparatus includes a signal-beam spatial light modulating section, a reference-beam spatial light modulating section, and a control unit. A signal beam pattern generates a...
8049941 Method for the compensation of an inhomogeneous brightness perception in holographically reconstructed scenes  
To compensate for an inhomogeneous brightness perception in a holographic reconstruction of 3D-scenes (4), a computing means encodes modulator cells of a SLM with a hologram point data pattern....
8035873 Hologram recording method and hologram recording device using generating light patterns  
A hologram recording method includes generating light of a pattern in which a plurality of unit blocks, which include at least one pixel and express luminance, are arrayed, the pattern being...
7999984 Apparatus and method to encode information holographically  
A method to encode information holographically, wherein the method provides information, and generates a plurality of data images, wherein each data image comprises a portion of the information....
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....
7967445 Image projecting apparatus and image projecting method  
An image projecting apparatus enables the formation of a projected image faithful to original image information by reducing degradation in the projected image due to decrease in imaging performance...
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...
7907773 Apparatus and method for holographic information storage and retrieval  
A method is disclosed to store and retrieve information using holographic data storage media. The method provides original data, generates a first image of that original data, and encodes that...
7889406 Apparatus and method to align the elements of a holographic information data storage system  
A method to align the write channel portion of a holographic data storage system. The method establishes a write threshold correlation factor, provides a reference beam, and illuminates a...
7826114 Hologram recording apparatus, hologram recording method and optical recording medium  
A hologram recording method is disclosed in which: signal light includes a plurality of arranged reversal regions in which lightness and darkness of plural pixels of a light and dark image is...
7821692 Method of and apparatus for recording/reproducing data on/from holographic storage medium  
A method of and apparatus for recording/reproducing data on/from a holographic storage medium. The method of recording data on a holographic storage medium in which holograms containing data by...
7796312 Holographic recording method and holographic recording apparatus  
A holographic recording apparatus 10 realizes multilevel gray-scale recording by: controlling a reflection type spatial light modulator (DMD 18D) via a control unit 24 so that an object beam in an...
7768683 Apparatus and method to align the elements of a holographic information data storage system  
A method to align the write channel portion of a holographic data storage system, wherein the method establishes a write threshold correlation factor, provides a reference beam, and illuminates a...
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...
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...
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...
7715072 Hologram retrieval method and holographic recording and reproducing apparatus  
Provided is a hologram retrieval method and a holographic recording and reproducing apparatus for preventing an increase in SNR, a decrease in retrieval accuracy, or the retrieval itself from being...
7692835 Hologram recording apparatus, hologram recording method, and hologram recording medium  
A recording medium, a recording apparatus, and a recording method. Recording data is recorded as element holograms on a hologram recording medium, a synchronization signal selected from among a...
7684097 Recording apparatus and phase modulation device  
A recording apparatus performing at least recording with respect to a hologram recording medium is disclosed. The recording medium includes: a light emitting means for emitting light to be radiated...
7672031 Hologram recording medium, hologram reproducing apparatus, hologram reproducing method, and hologram sheet  
A hologram recording medium includes a first element hologram and a second element hologram. On the first element hologram, main data is recorded such that the main data is converted into a...
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...
7557970 Hologram recording method, hologram recording device, hologram playback method, and optical recording medium  
A hologram recording method, which records signal light onto an optical recording medium as a hologram, includes: placing a signal light region, which generates signal light, and a reference light...
7483191 Holographic recording method, holographic memory reproduction method, holographic recording apparatus, and holographic memory reproduction apparatus  
A holographic recording and reproduction apparatus has a spatial light modulator for converting digital information to a two-dimensional image and for intensity modulating an object beam based on...
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...
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...
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...
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...
7193756 Piezoelectric element, method for fabricating the same, inkjet head, method for fabricating the same, and inkjet recording apparatus  
A piezoelectric element includes a first electrode film; a piezoelectric layered film including a first piezoelectric thin film formed on the first electrode film and a second piezoelectric thin...
7088481 Holographic recording techniques using reference zone of spatial light modulator  
The invention is directed to holographic recording techniques that generate a data encoded object beam and a reference beam using a spatial light modulator of the holographic recording system. An...
Matches 1 - 50 out of 129 1 2 3 >