For Reconstructing Image Patents (Class 359/32)
  • Patent number: 10775540
    Abstract: A method of forming a light modulating signal for displaying a 3D includes preparing a plurality of data sets for 2D image data with different viewpoints; imposing a phase value the plurality of data sets, by which each of the 2D images is seen at a corresponding viewpoint; and superposing the 2D images.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 15, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoon Song, Wontaek Seo, Hongseok Lee, Juwon Seo
  • Patent number: 10745181
    Abstract: Packaging comprising: a bottle at least partially transparent, a lighting system placed on the bottle in such a way as to emit a beam of light in a direction of lighting parallel to a central axis of the bottle, a covering film covering at least part of an exterior surface of a lateral wall of the bottle, the covering film comprising at least locally a decoration designed to be back-lit by the beam of light spreading through the liquid, the decoration comprising a plurality of decorative zones, each decorative zone having a degree of illumination, the plurality of decorative zones comprising at least one first contrast zone and at least one second contrast zone, the first contrast zone having a degree of illumination at least 5% lower than the degree of illumination of the second contrast zone.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: August 18, 2020
    Assignee: SOCIÉTÉ ANONYME DES EAUX MINÉRALES D'EVIAN ET EN ABRÉGÉ “S.A.E.M.E”
    Inventors: Germano Duarte Da Cal, Stéphane Mikolajczyk
  • Patent number: 10482676
    Abstract: Systems and methods to provide an interactive environment over an expanded field-of-view are presented herein. The system may include one or more of a headset, a first image forming component held by the headset, a second image forming component held by the headset, one or more physical processors, and/or other components. The first image forming component may be configured to generate light rays to form a first set of images of virtual content at a first resolution. The first set of images of virtual content may be presented to the user over a first angular portion of the user's field-of-view. The second image forming component may be configured to generate light rays to form a second set of images of virtual content at a second resolution. The second set of images of virtual content may be presented to the user over a second angular portion of the user's field-of-view.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: November 19, 2019
    Assignee: Meta View, Inc.
    Inventors: Sheng Yuan, Ashish Ahuja, Jie Xiang, Raymond Chun Hing Lo
  • Patent number: 10473576
    Abstract: A system for analyzing a transparent particle including: an analysis pathway, including a first light source emitting an analysis light beam, and a first optical system focusing the analysis light beam in a focusing plane; and a position control pathway including a second light source, an image sensor, and a second optical system at least partially merged with the first optical system. The image sensor is offset relative to the image of the focusing plane by the second optical system. The system makes it possible to control correct positioning of the particle, even though it is transparent, and without disturbing the analysis pathway.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: November 12, 2019
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, BIOMERIEUX
    Inventors: Francois Perraut, Pierre Joly, Quentin Josso, Meike Kloster-Landsberg
  • Patent number: 10394189
    Abstract: The invention relates to a display device for holographic reconstruction. The display device comprises a spatial light modulator device having combined phase modulating pixels and amplitude modulating pixels, an illumination unit generating sufficiently coherent light and arranged to illuminate of the spatial light modulator device and a reflection plane. The device being arranged such that light enters the spatial light modulator device and passes both the phase modulating pixel and the amplitude modulating pixel of the spatial light modulator device. The light is reflected by the reflection plane in between.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: August 27, 2019
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventor: Gerald Futterer
  • Patent number: 10282647
    Abstract: Non-uniformities in substrate thickness and surface topography contribute significantly to the need for auto-focusing on a sample deposited thereon. These auto-focusing needs can be reduced or eliminated by measuring and storing substrate surface topography for later retrieval by an imaging system that can use the topographic information to help set appropriate focal parameters. These steps can be done in advance of an imaging experiment to reduce focus-related delays during the experiment. Topographic information can be stored, for example, in a database, associated with a representation of a unique substrate identifier; entry of the representation retrieves the topographic information. As another example, topographic information can be stored in an encoding device associated with the substrate.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: May 7, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Shivang R. Dave, Germán González Serráno
  • Patent number: 10109169
    Abstract: A portable container for one or more articles each tagged with a respective Radio Frequency Identification (RFID) transponder, the container comprising a detector device for detecting removal and/or placement of RFID-tagged articles in the container; a power supply for supplying electrical power to the detector device; an activation means operable to cause the detector device to detect a reference list of RFID-tagged articles located in the container; a verification means operable by movement of the container to cause the detector device to detect RFID-tagged articles located in the container and to signal deviation from the reference list; and a signal means for transmitting signals from the detector device to a user. The detector device may transmit an article absent signal and/or an unknown article signal. The detector device may comprise an external antenna configured to detect RFID-tagged articles outside the container.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: October 23, 2018
    Assignee: Stanley Black & Decker MEA FZE
    Inventors: Julien Chevalier, Thierry Demaretz, Axel Lehovetzki
  • Patent number: 10080049
    Abstract: A method that incorporates teachings of the subject disclosure may include, for example, receiving, by a system comprising a processor, holographic video data and a descriptor file associated with the holographic video data, where the holographic video data comprises encoded holographic wave front images that are generated by reconstructing holographic interference patterns associated with a target object, determining, by the system, presentation characteristics from the received descriptor file, and presenting, by the system, holographic video content decoded from the holographic video data, at a portion of a display device. Other embodiments are disclosed.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: September 18, 2018
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Srilal Weerasinghe
  • Patent number: 9804564
    Abstract: An apparatus and method for displaying holograms. A compact and self-contained lighting system for a display hologram, which can produce high quality images and which is substantially insensitive to stray light.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: October 31, 2017
    Assignee: Ceres Imaging Limited
    Inventor: Ian Redmond
  • Patent number: 9582127
    Abstract: An input device including: a display device including a first display region; a plurality of sensor electrodes configured for capacitive sensing, where the plurality of sensor electrodes overlap at least a portion of the first display region; and a processing system operatively connected to the plurality of sensor electrodes and configured to: output a placement guide graphic on the first display region, where the placement guide provides alignment indication for a feature of an input object; generate a pressure-gauge graphic based on pressure exerted on the input device by the input object; send the pressure-gauge graphic for display while the input object is still in contact with the input device; obtain, based on resulting signals received with at least one sensor electrode of the plurality of sensor electrodes, a first capacitive image including the input object; and authenticate a user based on at least the first capacitive image.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 28, 2017
    Assignee: Synaptics Incorporated
    Inventor: Tom Vandermeijden
  • Patent number: 9541757
    Abstract: A light flux diameter-expanding element (pupil expanding element) which is used in a retina scanning type display apparatus includes a first diffraction grating having a grating pattern extending in a first direction X, a second diffraction grating, a third diffraction grating, and a fourth diffraction grating, and expands a diameter of the incident light flux in a second direction Y so as to emit the light. In addition, the light flux diameter-expanding element includes a fifth diffraction grating having a grating pattern extending in the second direction Y, a sixth diffraction grating, a seventh diffraction grating, and an eighth diffraction grating, and expands a diameter of the incident light flux in the first direction X so as to emit the light.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 10, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Yokoyama, Masatoshi Yonekubo
  • Patent number: 9513600
    Abstract: A display device including a pattern generator configured to generate a diffraction pattern from an image; a light source configured to emit emission light; an optical condenser which condenses the emission light to generate illumination light; and a spatial light modulator which diffracts the illumination light according to the diffraction pattern to generate diffracted light. The diffracted light passes through the optical condenser.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: December 6, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keiji Sugiyama, Kenichi Kasazumi
  • Patent number: 9121764
    Abstract: Embodiments of the present invention provide a method of providing image data for constructing an image of a region of a target object, comprising providing incident radiation from a radiation source at a target object, detecting, by at least one detector, a portion of radiation scattered by the target object with the incident radiation or an aperture at first and second positions, and providing image data via an iterative process responsive to the detected radiation, wherein in said iterative process image data is provided corresponding to a portion of radiation scattered by the target object and not detected by the detector.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 1, 2015
    Assignee: PHASE FOCUS LIMITED
    Inventor: Andrew Maiden
  • Patent number: 9086320
    Abstract: Embodiments of the present invention provide a method of providing image data for constructing an image of a region of a target object, comprising providing incident radiation from a radiation source at a target object, detecting, by at least one detector, a portion of radiation scattered by the target object with the incident radiation or an aperture at first and second positions, and providing image data via an iterative process responsive to the detected radiation, wherein in said iterative process image data is provided corresponding to a portion of radiation scattered by the target object and not detected by the detector.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: July 21, 2015
    Assignee: PHASE FOCUS LIMITED
    Inventor: Andrew Maiden
  • Patent number: 9050685
    Abstract: Described herein is a method for controlling the quality of a laser-welding process, for example, of laser welds of semifinished products constituted by elements of sheet metal of different thickness and/or properties (“tailored blanks”), of the type that comprises the steps of: detecting a radiation (E*) produced in the welding area and issuing signals (E*) indicating said radiation; acquiring and processing said signals (E*) indicating said radiation; making a division into blocks of said signals (E*) indicating said radiation; calculating for each block a block-mean value (u) and a value of block standard deviation (o); and in supplying input values comprising block-mean values (?) and values standard deviation (o) for identifying defects and/or porosities and insufficient penetration.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 9, 2015
    Assignee: C.R.F. Societá Consortile per Azioni
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz
  • Publication number: 20150147685
    Abstract: A system and method may utilize holography to facilitate fabrication techniques such as 3D printing and lithography. The system may include a light source, a hologram of an original object or lithographic pattern recorded in a holographic medium, and a target such as a reservoir of photosensitive material or a photosensitive material attached to a substrate. Illuminating the hologram with the appropriate light source may cause a holographic image of the original object or lithographic pattern to form on the photosensitive material within the reservoir or on the substrate. Formation of the holographic image may result in the formation of a new object from the photosensitive material, or may facilitate removal or retention of photosensitive material as part of a lithographic process.
    Type: Application
    Filed: November 22, 2014
    Publication date: May 28, 2015
    Inventor: Gerald L. Heidt
  • Publication number: 20150138613
    Abstract: Provided are an apparatus and a method for displaying a hologram image based on pupil tracking, wherein a hologram image display apparatus includes a location determiner to determine a location of a user using a captured image of the user and a hologram information reconstructor to reconstruct first hologram information as second hologram information optimized for the location of the user to reproduce the hologram image.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 21, 2015
    Inventors: Hyon Gon CHOO, Kyung Ae MOON, Min Sik PARK, Hyun Eui KIM, Jin Woong KIM
  • Publication number: 20150077514
    Abstract: Technologies are generally described for generating an image in a holographic imaging device by causing multiple reflections of a hologram reconstruction light on one side of a display panel in the holographic imaging device. An example device may include a display panel, a semi-transparent mirror layer on the display panel, a mirror layer at a side of the semi-transparent mirror layer opposite to the display panel, and a light irradiation unit opposite to the semi-transparent mirror layer. The light irradiation unit may irradiate a hologram reconstruction light on the semi-transparent mirror layer at a predetermined incident angle. The semi-transparent mirror layer may reflect a portion of the hologram reconstruction light such that the reflected portion of the hologram reconstruction light may be incident on the mirror layer. The semi-transparent mirror layer may transmit the other portion of the hologram reconstruction light to cause interference in the hologram.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 19, 2015
    Inventor: Eiji YAMAICHI
  • Patent number: 8982438
    Abstract: An apparatus includes a recording light source configured to emit recording beams, an EASLM configured to time sequentially modulate the recording beams emitted from the recording light source according to hologram information corresponding to a 3-dimensional image spatially divided into a plurality of portions, an OASLM configured to include a plurality of regions corresponding to the plurality of the divided portions of the 3-dimensional image and images on a region corresponding to the portions using the modulated recording beams to form a hologram, a scanning optical unit configured to reproduce the hologram formed by the recording beams serially modulated by the EASLM on a reduced scale and transmit the hologram to the regions of the OASLM corresponding to the portions, and a reproducing light source configured to produce a surface light and emit the surface light to the OASLM.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: March 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-hwan Choi, Hoon Song, Hong-seok Lee, Yoon-sun Choi, Jung-mok Bae, Seung-hoon Han
  • Patent number: 8982286
    Abstract: A chart generation unit generates an adjustment chart, and a projection unit projects the adjustment chart onto a circular cylinder. A parameter acquiring unit acquires 12 parameters in total, relating to the positions of four corners and middle points of a top side and a bottom side of a chart and lateral expansion of the chart, the chart being input by a user through manipulations of an operation unit. A transform function determination unit calculates, from the total of 12 parameters, an accurate transform function for projecting an image onto the circular cylinder. An image conversion unit applies geometric transformation to the image based on the calculated transform function.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: March 17, 2015
    Assignee: Casio Computer Co., Ltd.
    Inventor: Tetsuro Narikawa
  • Publication number: 20150070739
    Abstract: Methods and devices for coherent holographic data channel techniques are presented. Coherent techniques for data detection generally include homodyne and heterodyne detection. Techniques for Quadrature homodyne detection (QHD), Enhanced resampling quadrature homodyne detection (ERQHD), N-rature homodyne detection (NHD), and local oscillator fringe demodulation are presented. Coherent detection techniques in turn enable coherent channel modulation techniques such as phase modulation (including binary phase shift keying, or BPSK; phase quadrature holographic multiplexing, or QPSK; and quadrature amplitude modulation, or QAM). Coherent detection may also enable or improve the performance of other channel techniques such as Partial response maximum likelihood (PRML), the various classes of extended PRML, and of Noise predictive maximum likelihood (NPML) detection.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 12, 2015
    Inventors: Mark R. AYRES, Kenneth E. ANDERSON, David C. PRUETT, Will A. LOECHEL
  • Patent number: 8941904
    Abstract: 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 the use as for example an advertising medium or a decoration member. To achieve the object, the invention provides a hologram sheet comprising: a transparent substrate, a hologram layer formed on the transparent substrate and having a transmission type Fourier transform hologram region having the function of transforming a light beam incident from a point light source to a desired optical image, and a pressure-sensitive adhesive layer.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: January 27, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Koji Eto, Yasuyuki Oyagi, Mitsuru Kitamura, Masachika Watanabe
  • Publication number: 20150015928
    Abstract: Method of Fast Fourier Transform (FFT) Analysis for collecting waveforms and other vibrational intelligence and modulating or embedding same into one or more coherent reference beams of an n-dimensional holographic recording device for producing one or more holograms of objects, including singularity points in space. The result provides wholesale differentiation of waveforms distinguishable from others based on their spectral characteristics. When said holograms are presented with reference beams of vibrational waveforms having similar characteristics to those which were present during recording of the original objects, phantoms of the original objects or subjects will reconstruct themselves in space with an energy glow of intensity that varies thusly with the degree of similarity between the waveform modulations of the reconstructing wavefronts and those of that same which were used to originally record said objects. Said n-dimensional description space can be sampled of the said glowing phantoms.
    Type: Application
    Filed: July 13, 2013
    Publication date: January 15, 2015
    Inventors: Eric John Dluhos, Bradley Lloyd Wilk
  • Patent number: 8917431
    Abstract: 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 fashion. The light modulator contains a sequence of two registered holograms for each base color interlaced into six pixel columns for a left observer eye and for a right observer eye, and the sequence is repeated horizontally in periodic fashion. The periods of the color filter and the hologram are arranged relative to one another with the same degree of expansion, with a color strip and at least two pixel columns with holograms of the base color of the color strip are associated with a separating element.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: December 23, 2014
    Assignee: Seereal Technologies S.A.
    Inventor: Ralf Haussler
  • Patent number: 8891146
    Abstract: Technologies are generally described for generating an image in a holographic imaging device by causing multiple reflections of a hologram reconstruction light on one side of a display panel in the holographic imaging device. An example device may include a display panel, a semi-transparent mirror layer on the display panel, a mirror layer at a side of the semi-transparent mirror layer opposite to the display panel, and a light irradiation unit opposite to the semi-transparent mirror layer. The light irradiation unit may irradiate a hologram reconstruction light on the semi-transparent mirror layer at a predetermined incident angle. The semi-transparent mirror layer may reflect a portion of the hologram reconstruction light such that the reflected portion of the hologram reconstruction light may be incident on the mirror layer. The semi-transparent mirror layer may transmit the other portion of the hologram reconstruction light to cause interference in the hologram.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: November 18, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Eiji Yamaichi
  • Patent number: 8891344
    Abstract: 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 patterns of multiple frequencies in a photographic emulsion. Read-out of the stored data uses a precision mechanism to locate and decode stored data.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: November 18, 2014
    Inventors: Eric Dean Rosenthal, Richard Jay Solomon, Clark Eugene Johnson
  • Patent number: 8873120
    Abstract: A numerical method of recording a two or three dimensional object scene in a binary hologram. When the binary hologram is illuminated with a reference beam, the original object scene can be reconstructed and observed by a viewer. As the hologram is binary, i.e. composed of black or white pixels, it can be printed with commodity printers. The process is simple, fast, and economical, hence decreasing the cost and time for hologram design and production. In addition, with binary holograms, the ability to store the holograms is enhanced and binary holograms facilitate efficient transmission of the holograms.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 28, 2014
    Assignee: City University of Hong Kong
    Inventors: Wai Ming Tsang, Wai Keung Cheung
  • Patent number: 8873361
    Abstract: There is disclosed an optical information recording/reproducing apparatus for optically recording and/or reproducing information in and from an optical recording medium. The apparatus has an oscillator light generator for generating oscillator light that is made to overlap and interfere with reproduced light from the optical recording medium, an oscillator light modulator for producing a given phase difference between the oscillator light and the reproduced light, a light detector for detecting interference light in which the oscillator light and the reproduced light overlap each other, a wavefront deviation detector for detecting an amount of wavefront deviation between the oscillator light and the reproduced light from an output from the light detector, and a compensation amount calculation unit for calculating a wavefront compensation amount from the amount of wavefront deviation. The phase difference produced by the oscillator light modulator is controlled based on the wavefront compensation amount.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: October 28, 2014
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventor: Yusuke Nakamura
  • Patent number: 8848267
    Abstract: A laser beam (L50) is reflected by a light beam scanning device (60), and irradiated onto a hologram recording medium (45) where an image (35) of a scatter plate is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (B). Scanning is effected by changing the bending mode of the laser beam so that the irradiation position of the bent laser beam (L60) on the hologram recording medium (45) changes with time. Regardless of the beam irradiation position, diffracted light (L45) from the hologram recording medium (45) reproduces the same reproduction image (35) of the scatter plate at the same position. An illumination spot with reduced speckles is formed on the surface (R) of an illuminating object (70) by the reproduction image (35) of the hologram.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: September 30, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Makio Kurashige
  • Publication number: 20140253991
    Abstract: The invention generally relates to accessories for portable electronic devices that offer a screen for displaying the contents of a display of an electronic device. The invention provides, for an electronic device, an accessory that includes a reflective screen including a material such as a beam splitter to re-display the device display. In certain aspects, the invention provides a reflective screen for use with a computing device that has a reflective material and a mechanism to hold the screen above a horizontal surface at an angle.
    Type: Application
    Filed: May 21, 2014
    Publication date: September 11, 2014
    Applicant: 360BRANDVISION, INC.
    Inventors: Nick Vilardell, Olav Christensen
  • Patent number: 8830547
    Abstract: 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 angle alone. In that authentication hologram, a hologram for reconstructing a 3D object image and a hologram mirror pattern that is formed at a pattern portion corresponding to the added information and has planar interference fringes placed one upon another and parallel at a constant spacing are recorded in a superposing fashion.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: September 9, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Jun Sato, Tsuyoshi Yamauchi
  • Patent number: 8804220
    Abstract: A method of computing a hologram by determining the wavefronts at the approximate observer eye position that would be generated by a real version of an object to be reconstructed. In normal computer generated holograms, one determines the wavefronts needed to reconstruct an object; this is not done directly in the present invention. Instead, one determines the wavefronts at an observer window that would be generated by a real object located at the same position of the reconstructed object. One can then back-transforms these wavefronts to the hologram to determine how the hologram needs to be encoded to generate these wavefronts. A suitably encoded hologram can then generate a reconstruction of the three-dimensional scene that can be observed by placing one's eyes at the plane of the observer window and looking through the observer window.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: August 12, 2014
    Assignee: SeeReal Technologies GmbH
    Inventors: Norbert Leister, Ralf Häussler, Armin Schwerdtner
  • Publication number: 20140218778
    Abstract: A substrate includes a diffracting structure providing a hologram (20, 6). The diffracting structure encodes a holographic image so that thatholographic image is produced in response to reference light being incident on a major surface of the substrate at an angle of incidence with respect to the said major surface of the substrate, wherein the angle of incidence is no more than 20°.
    Type: Application
    Filed: August 31, 2012
    Publication date: August 7, 2014
    Applicant: THE SECRETARY OF STATE FOR BUSINESS, INNOVATION & SKILLS OF HER MAJESTY'S BRITANNIC GOVERNMENT
    Inventors: Simon Richard Geoffrey Hall, Richard Frederick Stevens
  • Patent number: 8797382
    Abstract: 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 color three-dimensional holographic images. In one aspect, a hologram comprises a phase-control layer having a plurality of phase modulation elements. The phase-modulation elements are configured with a negative effective refractive index and selectively transmit wavelengths associated with one of three primary color wavelength. The hologram also includes an intensity-control layer including a plurality of intensity-control elements. One or more color three-dimensional images can be produced by electronically addressing the phase-modulation elements and intensity-control elements in order to phase shift and control the intensity of light transmitted through the hologram. A method for generating a color holographic image using the hologram is also provided, as is a system for generating a color holographic image.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: August 5, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jingjing Li, Philip J. Kuekes
  • Publication number: 20140211287
    Abstract: There is herein described apparatus and methods for displaying holograms. At least one aspect of the invention is to provide a compact and self-contained lighting system for a display hologram, which can produce high quality images and which is substantially insensitive to stray light.
    Type: Application
    Filed: April 15, 2014
    Publication date: July 31, 2014
    Applicant: CERES IMAGING LIMITED
    Inventor: Ian Redmond
  • Publication number: 20140204438
    Abstract: An optical device includes a light-conducting member, having a first panel surface disposed facing an image forming unit, that conducts image light incident on a light entry plane formed at an end of the first panel surface to a light exit plane formed in front of the viewer's eye; a first diffractive optics element, provided on the light entry plane, that diffracts the image light incident on the light entry plane in a predetermined direction and transmits that light into the light-conducting member; a second diffractive optics element, provided on the light exit plane, that diffracts the image light exiting from the light exit plane in a predetermined direction and transmits that light to the front of the viewer's eye; and one or more reflective planes disposed within a waveguide for the image light diffracted by the first diffractive optics element.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Fumika Yamada, Masatoshi Yonekubo, Osamu Yokoyama
  • Publication number: 20140192389
    Abstract: Technologies are generally described for generating an image in a holographic imaging device by causing multiple reflections of a hologram reconstruction light on one side of a display panel in the holographic imaging device. An example device may include a display panel, a semi-transparent mirror layer on the display panel, a mirror layer at a side of the semi-transparent mirror layer opposite to the display panel, and a light irradiation unit opposite to the semi-transparent mirror layer. The light irradiation unit may irradiate a hologram reconstruction light on the semi-transparent mirror layer at a predetermined incident angle. The semi-transparent mirror layer may reflect a portion of the hologram reconstruction light such that the reflected portion of the hologram reconstruction light may be incident on the mirror layer. The semi-transparent mirror layer may transmit the other portion of the hologram reconstruction light to cause interference in the hologram.
    Type: Application
    Filed: August 23, 2012
    Publication date: July 10, 2014
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Eiji Yamaichi
  • Patent number: 8743245
    Abstract: An image processing method includes the steps of obtaining an input image that is an image in which information of an object space is obtained from a plurality of points of view using an image pickup apparatus that includes an image pickup element having a plurality of pixels and an imaging optical system, calculating a first position of a virtual imaging plane that corresponds to a specified focus position, setting the virtual imaging plane to a second position that is in a range of a depth of focus of the imaging optical system with reference to the first position so that a maximum value of an apparent pixel pitch that is formed by reconstructing the input image is decreased, and generating an output image in a state where the virtual imaging plane is set to the second position.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norihito Hiasa, Koshi Hatakeyama
  • Patent number: 8736774
    Abstract: A chart generation unit generates an adjustment chart, and a projection unit projects the adjustment chart onto a circular cylinder. A parameter acquiring unit acquires 12 parameters in total, relating to the positions of four corners and middle points of a top side and a bottom side of a chart and lateral expansion of the chart, the chart being input by a user through manipulations of an operation unit. A transform function determination unit calculates, from the total of 12 parameters, an accurate transform function for projecting an image onto the circular cylinder. An image conversion unit applies geometric transformation to the image based on the calculated transform function.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: May 27, 2014
    Assignee: Casio Computer Co., Ltd.
    Inventor: Tetsuro Narikawa
  • Publication number: 20140133000
    Abstract: Provided are a photorefractive polymer composite, and a photorefractive devices and hologram display device including the same. The photorefractive polymer composite includes a photoconductive polymer matrix, a nonlinear optical chromophore, a plasticizer, and a graphite-based photocharge generator.
    Type: Application
    Filed: August 20, 2013
    Publication date: May 15, 2014
    Inventors: Chil-sung CHOI, Kyoung-seok PYUN
  • Publication number: 20140092457
    Abstract: The present disclosure relates to a back light unit providing direction controllable collimated light beam and a three-dimensional display using the same. The present disclosure suggests a back light unit comprising: a light source for generating light; and a light direction controller for converting the light from the light source into a direction controlled collimated light beam having a refraction angle, the direction controlled collimated light beam emitted to a predetermined area to generate a three-dimensional holographic image. The back light unit according to the present disclosure can provide direction controllable collimation light having uniform brightness distribution over a large diagonal area of the spatial light modulator with thin and simple structure.
    Type: Application
    Filed: December 17, 2012
    Publication date: April 3, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyungseok BANG, Heejin IM, Guensik LEE
  • Patent number: 8687253
    Abstract: 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 object beam, irradiating the object with the object beam, moving the object from the first position to a second position by longitudinally shifting the object along the beam path of the object beam, irradiating the object with the object beam at the second position. At each of the first and second positions a holographic image formed by interference between the object beam and a reference beam is recorded. An object image with reduced speckle noise is obtained by averaging the holographic images. Either an arithmetic mean or a weighted average may be used in the averaging of the holographic images.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: April 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chung-Chieh Yu, Isao Matsubara, Mamoru Miyawaki
  • Publication number: 20140063577
    Abstract: Systems and methods for infrared laser holographic projection. In one example, an optical apparatus includes a first laser source configured to generate a first laser beam having a first wavelength in an infrared spectral range and a holographic medium optically coupled to the laser source and having a transmittance range including the first wavelength. A diffraction pattern formed in the holographic medium encodes an input image and is configured to diffract the first laser beam responsive to being illuminated by the laser beam so as to construct an image in the infrared spectrum, the image being a reconstruction of the input image. The diffraction pattern may further be configured to diffract a second laser beam having a second wavelength in a visible spectral range to construct an image including a first portion in the infrared spectral range and a second portion in the visible spectral range.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: RAYTHEON COMPANY
    Inventor: Rigel Quinn Woida-O'Brien
  • Patent number: 8630157
    Abstract: According to one embodiment, a data reproducing apparatus includes a data recording medium, light source unit, light application unit, photodetector unit and control unit. An address mark string including address marks is formed on the data recording medium. The address marks are spaced from each other by a distance depending on address data. The light application unit is configured to split the light beam into a first branch light beam and a second branch light beam and apply the first and second branch light beams to the address mark string at different angles. The photodetector unit is configured to detect first reflected light beams and second reflected light beams from the address mark string to generate image data. The first and second reflected light beams result from the first and second branch light beams, respectively. The control unit is configured to reproduce address data based on the image data.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: January 14, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuo Watabe, Akihito Ogawa, Hideaki Okano, Takashi Usui
  • Patent number: 8630032
    Abstract: 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 which an original image Pic(B) is recorded, and a middle region Mm positioned therebetween. The region Mm is divided into a plurality of strip-like regions f1 to f6. The widths of the strip-like regions f1, f3, and f5 that are odd-numbered when counted from the region M1 are set so as to increase monotonically in this order, while the widths of the even-numbered strip-like regions f2, f4, and f6 are set so as to decrease monotonically in this order.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 14, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mitsuru Kitamura, Masato Taninaka, Masayo Shima
  • Patent number: 8625181
    Abstract: A holographic security device including at least first and second diffractive image generating structures recorded in respective sets of substantially non-overlapping regions of a record medium, the regions of one set being interleaved with regions of the other set, whereby both interleaved regions are substantially non-visible to the unaided eye. The holographic security device generates two or more holographic images viewed from separate and/or overlapping viewing directions around the device and seen by tilting the device, and each particular holographic image in a viewing direction is generated by the diffractive image generating structure associated with one set of interleaved lines. The first diffractive image generating structure has been formed to have a diffuse diffractive replay and the second diffractive image generating structure has been formed to have a non-diffuse or specular diffractive replay.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: January 7, 2014
    Assignee: De La Rue International Limited
    Inventor: Brian Holmes
  • Patent number: 8587852
    Abstract: Device for generating a hologram pattern including: selecting means for selecting, as cross section ranges which are in a plurality of cross sections parallel to hologram pattern in 3D object and which are ranges used for generating hologram pattern, cross section ranges which overlap ranges in other cross sections when the relevant cross section is perspectively seen from a predetermined observation point on the hologram pattern; depth integrating means for calculating, for lattice points in one cross section range, a depth integral function acquired by integrating an inverse diffraction function for determining hologram pattern for displaying points of 3D object with respect to respective lattice points in the cross section ranges which overlap the relevant lattice point; and inverse Fourier transform means for generating hologram pattern by performing two-dimensional inverse transform on depth integral functions with respect to plurality of lattice points in one cross section range.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: November 19, 2013
    Assignee: International Business Machines Corporation
    Inventor: Fusashi Nakamura
  • Patent number: 8570628
    Abstract: A three-dimensional (3D) color display apparatus may include: light sources emitting different color beams; a volume diffractive element, in which a hologram is recorded using one of the color beams that is emitted from one of the light sources as a reference beam and a signal beam, displaying color images by diffracting the color beams emitted from the light sources; and a scanning unit scanning the color beams diffracted by the volume diffractive element. A 3D color image display method may include: recording holograms in a volume diffractive element using a first color beam as a reference and signal beam; irradiating the first color beam and another color beam onto the volume diffractive element as a reproducing reference beam; forming beam spots by diffracting the first color beam and the another color beam using the volume diffractive element; and scanning the color beams diffracted by the volume diffractive element.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: October 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ji-deog Kim
  • Publication number: 20130250383
    Abstract: A multiwavelength holographic imaging apparatus uses a frequency converter for converting input tunable coherent light having a wavelength tunable around a wavelength ?2 to tunable output coherent light having a wavelength tunable around a wavelength ?1, wherein the image receiver receiving the holographic image is sensitive to the light of wavelength ?1. The image receiver may not be sensitive to light of wavelength ?2, for example if ?2 is in the infrared spectral region greater than 1.3 microns.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: Coherix, Inc.
    Inventors: Michael Mater, Richard Wineland
  • Patent number: 8487980
    Abstract: Holographic display with which voice and holographic image over internet protocol (VHIOIP) services or communications are provided.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: July 16, 2013
    Assignee: Seereal Technologies S.A.
    Inventors: Bo Kroll, Robert Missbach, Alexander Schwerdtner