| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359012000 | Copying by holographic means | 20 |
| 20080297865 | REPRODUCING APPARATUS, REPRODUCING METHOD, RECORDING AND REPRODUCING APPARATUS, RECORDING AND REPRODUCING METHOD, RECORDING APPARATUS, AND RECORDING METHOD - A reproducing apparatus, reproducing method, recording and reproducing apparatus, recording and reproducing method, recording apparatus, and recording method are provided. A reproducing apparatus reproduces data from a hologram recording medium in which data inserted with syncs at predetermined intervals is recorded in each predetermined page unit by interference fringes of reference light and signal light includes a reference-light irradiating unit that irradiates the reference light on the hologram recording medium, a signal readout unit that receives diffractive light corresponding to the data recorded on the hologram recording medium, a sync-position detecting unit that detects a position of a detection object sync on the basis of positions of plural syncs selected with the position of the detection object sync as a reference, and an amplitude-value calculating unit that specifies positions of respective recording pixels in the readout signal on the basis of the positions of the respective syncs detected by the sync-position detecting unit and calculates amplitude values of the respective pixels. | 12-04-2008 |
| 20090046334 | HROM REPLICATION METHODS, DEVICES OR SYSTEMS, ARTICLES USED IN SAME AND ARTICLES GENERATED BY SAME - HROM replication methods, devices or systems are disclosed herein. Also disclosed herein are articles comprising conical reference (reconstruction) beam hologram elements to generate conical or conical like reference (reconstruction) beams which may be used in such HROM replication methods, devices or systems. Further disclosed herein are articles comprising a target medium which may be used in such HROM replication methods, devices or systems. | 02-19-2009 |
| 20090086297 | Bragg grating elements for optical devices - Three-dimensional holographic elements are disclosed. Three-dimensional Bragg gratings recorded on bulks of optical material are included in the disclosure. Such elements may be manufactured by placing a three-dimensional bulk of optical material directly behind a recorded master hologram, directing a reference beam onto a master hologram such that a replica of the master hologram is recorded in the optical material. The replica may form the three-dimensional holographic element. The master hologram may be Bragg grating formed on a surface of a transparent substrate. | 04-02-2009 |
| 20090168129 | Replication of data to holographic medium using holographic master media - An apparatus for replicating holographically recorded data, comprising a holographic master media having holographically recorded data thereon; a holographic copy media; a light source for generating a master reference beam and a copy reference beam, coherent with the first object beam, the first master reference beam incident on the holographic master media, the holographic master media diffracting the master reference beam to provide a first object beam; the copy reference beam incident on the holographic copy media; and a first optical relay system, disposed between the holographic master media and the holographic copy media, for relaying the first object beam from the holographic master media to the holographic copy media, the holographic copy media recording an interference pattern between the first object beam and the copy reference beam, thereby replicating at least a portion of holographically recorded data. | 07-02-2009 |
| 20090168130 | HOLOGRAM RECORDING METHOD AND HOLOGRAM RECORDING DEVICE - A recording medium is stacked on a master recording body, to which reference beams are applied each at an incident angle. The interference between diffracted beams diffracted in the data storage sections of the master recording body and the reference beams in the recording medium occurs such that the data are transferred to the recording medium. The use of plural compact light sources for emitting the reference beams allows the recording device to be compact while reducing the power consumption. | 07-02-2009 |
| 20090244666 | Multicolor holographic replication by masking - A method is provided for replicating (copying) a multicolor hologram (e.g., a two-color hologram) into a photosensitive layer by masking to produce a copy (replicate) of the hologram in a manner such that the copy is an accurate and true replication of the hologram (e.g., master hologram) and the copy is characterized to possess a high brightness level and color fidelity comparable to that of the multicolor hologram that was replicated. | 10-01-2009 |
| 20100067076 | HOLOGRAPHIC PRINTER - A holographic printer, a hologram copier and a combined holographic printer and hologram copier system is disclosed. The printer, copier and combined system comprise a pulsed RGB laser system comprising three short cavity oscillators. With the holographic printer digital image data is encoded onto three LCOS reflective SLM displays. The combined holographic printer and hologram copier system comprises a single RGB laser system. | 03-18-2010 |
| 20100208316 | Holographic exposure apparatuses - A holographic exposure apparatus may include a main body, a mask stage supported by the body, a holographic mask supported by the mask stage, and a driving unit disposed between the body and mask stage. A holographic exposure apparatus may include an object supported by a substrate stage, a holographic mask spaced apart from the object and supported by a mask stage, a main body supported by the mask stage, and a driving unit disposed between the mask stage and body to control a gap between the mask stage and body. A holographic exposure apparatus may include a main body, a mask stage supported by the body, a holographic mask supported by the mask stage, and a piezoelectric element disposed between the body and mask stage. The body may include a support arm that supports the element. The mask stage may include a seat arm that supports the element. | 08-19-2010 |
| 20110205606 | EXPOSING DEVICE AND IMAGE FORMING APPARATUS - There is provided an exposing device including: a light emitting element array of plural light emitting elements arrayed in a row with a first separation along a predetermined direction; and a hologram element array in which plural hologram elements are multiplex recorded in a recording layer disposed above the light emitting element array, the plural hologram elements corresponding to each of the plural light emitting elements such that diffracted beams of light emitted from the plural light emitting elements are converged to form focused beam spots in a row along the predetermined direction with a second separation smaller than the first separation at an surface to be exposed. | 08-25-2011 |
| 20110249309 | COMPACT HOLOGRAHIC HUMAN-MACHINE INTERFACE - A method of recording an object image of a first hologram as a second hologram is provided. A first hologram is recorded at a first angle of reconstruction and a holographic recording medium is provided. An object beam is directed through the first hologram at the first angle of reconstruction to reconstruct the object image on the recording medium. The recording medium is struck with a reference beam at a second angle of reconstruction to form a wave interference pattern with the object beam. The second angle of reconstruction is between 45 and 90 degrees. The wave interference pattern is recorded. A switch is provided that includes a hologram that has an angle of reconstruction between 45 and 90 degrees. A reproducing light source is positioned to direct light through the hologram at the angle of reconstruction to form a holographic image at a predetermined distance from the hologram. The switch includes a detector that detects the presence of an object proximate to the holographic image. The axis of the detector beam source is not perpendicular to the plane of the medium to which its hologram is affixed. | 10-13-2011 |
| 20120019884 | Bragg Grating Elements For Optical Devices - Three-dimensional holographic elements are disclosed. Three-dimensional Bragg gratings recorded on bulks of optical material are included in the disclosure. Such elements may be manufactured by placing a three-dimensional bulk of optical material directly behind a recorded master hologram, directing a reference beam onto a master hologram such that a replica of the master hologram is recorded in the optical material. The replica may form the three-dimensional holographic element. The master hologram may be Bragg grating formed on a surface of a transparent substrate. | 01-26-2012 |
| 20120026565 | Duplicating Holograms - Methods and systems for optimizing hologram duplication, including illuminating a first master hologram to generate a first data beam modulated by the first master hologram, recording a first copy hologram using the first data beam and a reference beam, analyzing a light field generated by the first copy hologram, and generating a second master hologram to be used in recording a second copy hologram according to the light field generated and a desired light field. | 02-02-2012 |
| 20120038959 | WIDE ANGLE HOLOGRAM DEVICE ILLUMINATED WITH A NEAR FIELD SOURCE AND METHOD FOR MANUFACTURING SAME - A method of manufacturing a master for producing a hologram device is provided. The holographic image reconstructs when the photosensitive film of the hologram device is struck by a beam of light from a wide angle being defined relative to a perpendicular line to a surface of the photosensitive film. | 02-16-2012 |
| 20120044552 | IMAGE RECORDING MEDIUM, HOLOGRAM REPLICATING DEVICE AND HOLOGRAM REPLICATING METHOD - An image recording medium in which a refractive index modulation is recorded in a material in a layer such that, when the hologram recording medium is illuminated from a predetermined angle and a viewpoint is moved horizontally with respect to a normal line, a hologram image having continuous parallax in at least the horizontal direction is reproduced and that, when the viewpoint is moved in a direction with respect to the normal line different from the horizontal direction, another image that is different from and thus is not continuous with the hologram image is reproduced. | 02-23-2012 |
| 20120062967 | Duplicating diffractive optical elements - Methods and systems for duplicating holograms, including illuminating a master hologram using a first portion of a beam to generate a data beam, recording a copy hologram using a second portion of the beam and the data beam, where the master hologram and the copy hologram are arranged such that the second portion of the beam avoids the master hologram. | 03-15-2012 |
| 20120206781 | IMAGE RECORDING MEDIUM, HOLOGRAM REPLICATING DEVICE AND HOLOGRAM REPLICATING METHOD - An image recording medium in which a refractive index modulation is recorded in a material in a layer such that, when the hologram recording medium is illuminated from a predetermined angle and a viewpoint is moved horizontally with respect to a normal line, a hologram image having continuous parallax in at least the horizontal direction is reproduced and that, when the viewpoint is moved in a direction with respect to the normal line different from the horizontal direction, another image that is different from and thus is not continuous with the hologram image is reproduced. | 08-16-2012 |
| 20130188233 | APPARATUS AND METHOD FOR FAST GENERATION OF THREE-DIMENSIONAL (3D) HOLOGRAM - An apparatus for generating a hologram that may generate a three-dimensional (3D) hologram pattern at a high speed may include a pattern setting unit to set points for which hologram patterns are to be generated with respect to a one-eighth area of an entire area for which a hologram pattern is to be generated, a calculation unit to calculate pattern values for a plurality of reference points selected with respect to the one-eighth area of the entire area, and to generate a pattern for the one-eighth area using recurrent interpolation, and a pattern duplicating unit to complete a pattern for the entire area by duplicating the generated pattern for the one-eighth area. | 07-25-2013 |
| 20130215485 | Methods and Apparatus for Holographic Animation - In an illustrative implementation of this invention, an animated holographic display is created as follows: Multiple HPO holograms in the shape of horizontal strips are recorded on an H2 medium. These horizontal strips are vertically displaced from each other. An animated real image is displayed by sequentially illuminating these HPO holograms. In illustrative implementations of this invention, the vertical perspective of at least some adjacent HPO stripes are identical. | 08-22-2013 |
| 20140168735 | MULTIPLEXED HOLOGRAM TILING IN A WAVEGUIDE DISPLAY - Embodiments related near-eye display devices having angularly multiplexed holograms are disclosed. One disclosed embodiment provides a near-eye display device including an image source, a waveguide, and a controller. The waveguide is configured to propagate light received the image source to a user of the near-eye display device, and includes a holographic grating comprising a plurality of angularly multiplexed holograms. The controller is configured to control display of an image via the image source. | 06-19-2014 |
| 20150378306 | METHOD FOR ILLUMINATION OF A HOLOGRAM IN HOLOGRAPHIC LITHOGRAPHY AND A MULTI-COMPONENT ILLUMINATOR FOR CARRYING OUT THE METHOD - A method and a multi-component illuminator for illumination of a hologram in holographic lithography in which a coherent beam is split into a plurality of individual laser light beams by means of a beam splitter which is provided with a plurality of individual sub-illuminators. Each sub-illuminator has an individual aperture, receives a respective individual coherent light beam, and form a an illumination field on the surface of the hologram during hologram illumination. Altogether the sub-illuminators are combined into a common hologram illuminator. In the multi-component illuminator the individual sub-illuminators are arranged so that the illumination fields cover with the light the maximum possible surface of the hologram during illumination of the latter in the holographic lithography process. | 12-31-2015 |
