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RE45496 Apparatus and method for compensating for pixel distortion in reproduction of hologram data  
An apparatus for compensating for pixel distortion while reproducing hologram data includes an extraction unit, a determination and calculation unit, a table, and a compensation unit. The...
9013773 Back light unit providing direction controllable collimated light beam and 3D display using the same  
A back light unit providing a direction controllable collimated light beam and a three-dimensional display using the same is described. A back light unit comprises: a light source for generating...
9001401 Fabrication process of multi-image type hologram, and multi-image type hologram fabricated by that process  
A process by which a multi-image type hologram, wherein one 3D image changes over to another depending on a viewing direction, can be fabricated in a simple construction, and a multi-image type...
8953235 Method for producing a security mark on an optical data carrier  
A device for producing a security mark on an optical data carrier includes directing means for directing a first and a second light beam onto a hologram area of the optical data carrier, wherein...
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...
8891344 Wave-based optical data storage  
The invention combines several techniques applying high-resolution photosensitive emulsions for the long-term, archival storage of data, images and text. Data is stored as vertical interference...
8848266 Security element and method for producing a security element  
A method for producing a security element (55) and a security element (55) in the form of a multilayered film body having a top side facing the observer. The security element (55) has a volume...
8848276 Optical-path conversion device and imaging apparatus  
An optical-path conversion device includes: a plate-shaped phase modulation mask in which a plurality of phase modulation parts are discretely formed for providing phase modulation to light...
8848271 Apparatus and method for high-speed phase shifting for interferometric measurement systems  
Described are a method and apparatus for high-speed phase shifting of an optical beam. A transparent plate having regions of different optical thickness is illuminated by an optical beam along a...
8842351 Data storage method and device  
A method for storing data including: providing a first substrate having a plurality of micro-holograms therein, the micro-holograms being indicative of the data; providing a second...
8830547 Authentication hologram, and its fabrication process  
An authentication hologram uses a Lippmann hologram that enables a 3D object image having a vertical and horizontal field of vision as well as planar with added information viewable at a specific...
8817348 Multicolor and full color holographic film and recording method  
A holographic film for recording multicolor volume holograms, especially full color volume reflection holograms, and/or manufacturing techniques for such film, and/or corresponding methods of...
8797382 Dynamically reconfigurable holograms for generating color holographic images  
Various embodiments of the present invention are directed to negative refractive index-based holograms that can be electronically controlled and dynamically reconfigured to generate one or more...
8786923 Methods and systems for recording to holographic storage media  
According to one aspect and example, a method for recording holographic media and/or holographic master data masks includes recording at least a first hologram or information layer with a first...
8786925 System and method for color motion holography  
A method for producing and replaying a color holographic image. The method includes multiple hologram films, each film containing content replayed at a viewing angle or range of viewing angle in...
8780425 Holographic storage system with improved beam overlap  
An apparatus and a method for reading from and/or writing to holographic storage media using a coaxial arrangement of an object beam and one or more reference beams or a coaxial arrangement of a...
8740391 Devices and methods for providing a distributed manifestation in an environment  
The present invention concerns a projection system for providing a distributed manifestation within an environment. The projection system includes a data generator for generating a plurality of...
8736933 Method and device for producing colored individualized holograms  
A method produces colored individualized holograms for use as security elements for documents, and to a device for producing individualized holograms. The method generates light formed of...
8725210 Attachable assembly  
An attachable assembly for smart phone that has at least one contact site disposed thereon is disclosed. The attachable assembly comprises a mount unit and an extension device. The mount unit is...
8715887 Complex holograms, method of making and using complex holograms  
A method of making a hologram includes recording a first hologram in a holographic recording medium at a first deformation ratio; changing the first deformation ratio to a second deformation ratio...
8703363 Reflection hologram storage method  
A method is described for recording a volume reflection holographic image that is viewable when illuminated by light at a wavelength Wv. The method includes providing a transparent holographic...
8699111 Apparatus and method for high-speed phase shifting for interferometric measurement systems  
Described are a method and apparatus for high-speed phase shifting of an optical beam. A transparent plate having regions of different optical thickness is illuminated by an optical beam along a...
8687253 Speckle noise reduction based on longitudinal shift of sample  
A method and apparatus for reducing speckle noise in an image of an object are disclosed. The method includes, placing the object in an interferometer at a first position along a beam path of an...
8644123 Hologram generating device and hologram printer  
The invention provides a hologram generating device and a hologram generating method that allows the generation of a hologram for reproducing an easily observable three-dimensional image without...
8645001 Method and system for blind spot identification and warning utilizing visual indicators  
A method for detecting and alerting a driver of vehicles in their blind spots, includes: tracking movement and relative position of a driver to one or more vehicles; determining one or more driver...
8630032 Method for preparing hologram recording medium  
Two adjacent images are recorded in a state smoothly blended at a boundary portion. On a recording plane Rec, provided is a region M1 in which an original image Pic(A) is recorded, a region M2 in...
8625183 Three dimensional holographic volumetric display  
A holographic volumetric display comprises a pattern generation unit (20), a programmable lighting device and a holographic screen (28). The holographic screen contains one or more pre-recorded...
8564866 Computer-generated hologram including splice planes for reconstructing a full-color image with high resolution and its fabrication method  
A recording plane of a computer-generated hologram that is capable of reconstructing a full-color image and achieving a high resolution is divided by a multiplicity of parallel sections in the...
8508505 Virtual optical input device for providing various types of interfaces and method of controlling the same  
Provided are a virtual optical input device and a method of controlling the same. In the method, a portion of an input means such as a finger, and a portion of a shadow of the input means...
8500284 Broad viewing angle displays and user interfaces  
Disclosed are methods and systems for displaying images, and for implementing volumetric user interfaces. One exemplary embodiment provides a system comprising: a light source; an image producing...
8497052 Method for determining recording exposure for holographic recording medium and method for recording thereon  
An optimal recording exposure is determined by varying in the first to nth stages the recording exposure with a write laser beam to record a bright pattern image and a dark pattern image in each...
8487980 Holographic display with communications  
Holographic display with which voice and holographic image over internet protocol (VHIOIP) services or communications are provided.
8481232 Laser marking hologram having a volume hologram with interference fringes using selective irradiation  
The present invention is provided to enhance security of a volume hologram by recording therein individualized information such as information of character, numerical character, picture pattern,...
8482830 Hybrid reflection hologram  
Hybrid white-light viewable holograms and methods for making them. The holograms are hybrid reflection holograms made using the diffractive structures or gratings of a holographic object such as a...
8437058 Computer generated hologram and exposure apparatus to suppress an illumination variation and loss in light  
A present invention provides a computer generated hologram which forms a light intensity distribution on a predetermined plane by giving a phase distribution to a wavefront of incident light, the...
8427725 Light modulating device  
The present invention relates to a light modulating device, comprising a SLM and a pixelated optical element, in which a group of at least two adjacent pixels of the SLM in combination with a...
8405892 Method and device for manufacturing a hologram recording medium in which different original images are reproduced when observed from different positions  
A method and device for manufacturing a hologram recording medium. Arrangements are made to enable different original images to be reproduced upon observation from different positions and yet...
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...
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...
8376548 Near-eye display with on-axis symmetry  
A near-eye display projects virtual images from an image generator to an eyebox within which the virtual images can be seen by a viewer. A first optical path conveys image-bearing light from the...
8363323 Optically variable security device and method  
A security device comprising at least first and second superposed optically variable effect generating structures (3-5, 31-51), each having a surface relief microstructure, the second optically...
8325400 Multi-color off-axis digital holographic system and the imaging method thereof  
A multi-color off-axis digital holographic system and the imaging method thereof are disclosed. The multi-color off-axis digital holographic system comprises: a plurality of light emitting diodes,...
8300921 Inspection apparatus and inspection method  
An object of the present invention is to provide an inspection apparatus and an inspection method for precisely detecting an amount of misalignment of a component mounted on a panel through an...
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...
8247139 Volume holographic data recording media  
There is provided volume holographic data recording media having a recording layer which is capable of recording interference fringes generated by interference of light having excellent coherence...
8233205 Method for holographic data retrieval by quadrature homodyne detection  
A holographic device is provided for recovering data in a holographic memory system. The device use homodyne detection to introduce a local oscillator beam into a reconstructed data beam of the...
8223412 Computer-generated hologram including splice planes for reconstructing a full-color image with high resolution and its fabrication method  
A recording plane of a computer-generated hologram that is capable of reconstructing a full-color image and achieving a high resolution is divided by a multiplicity of parallel sections in the...
8208734 Method for acquiring reserved block in holographic storage system  
A method is provided for acquiring a reserved block in a holographic storage system. A symmetrical reference table is defined according to the characteristics of a known reference reserved block....
8208185 Method and apparatus for the production of polarization holograms  
The present invention relates to a method for the production of polarization holograms, an apparatus for the production of polarization holograms and the use of the polarization holograms...
8199387 Phase addressed holographic associative memory  
The present invention provides a holographic storage apparatus comprising a polarizing beam splitter configured to split an incoming beam into an object beam and a reference beam; a first spatial...