For Producing Or Reconstructing Images From Multiple Holograms (e.g., Color, Etc.) Patents (Class 359/22)
  • Patent number: 10871746
    Abstract: There is provided a holographic projector comprising a hologram engine and a controller. The hologram engine is arranged to provide a hologram comprising a plurality of hologram pixels. Each hologram pixel has a respective hologram pixel value. The controller is arranged to selectively-drive a plurality of light-modulating pixels so as to display the hologram. Displaying the hologram comprises displaying each hologram pixel value on a contiguous group of light-modulating pixels of the plurality of light-modulating pixels such that there is a one-to-many pixel correlation between the hologram and the plurality of light-modulating pixels.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: December 22, 2020
    Assignee: Dualitas Ltd
    Inventor: Jamieson Christmas
  • Patent number: 10807528
    Abstract: A system for enhancing driver situation awareness and environment perception around a transportation vehicle. The system incorporates a plurality of object detecting sensors. The sensors are arranged for monitoring at least one critical zone around the vehicle. A plurality of addressable light-emitting diodes are operatively associated with the object detecting sensors. The addressable light-emitting diodes are located on the vehicle for visual display to the driver. When a given sensor detects an object in the critical zone, a detection signal is transmitted to a LED controller. Upon receiving the detection signal, the LED controller transmits a control signal to selectively activate only those addressable light-emitting diodes which are associated with the given sensor, such that the activated light-emitting diodes visually communicate to the driver a location of the detected object in the critical zone.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: October 20, 2020
    Assignee: Spirited Eagle Enterprises, LLC
    Inventors: Jerry K. Hubbell, Alan C. Lesesky, Steven Allen Osborne
  • Patent number: 10795315
    Abstract: A method of generating a color image of a sample includes obtaining a plurality of low resolution holographic images of the sample using a color image sensor, the sample illuminated simultaneously by light from three or more distinct colors, wherein the illuminated sample casts sample holograms on the image sensor and wherein the plurality of low resolution holographic images are obtained by relative x, y, and z directional shifts between sample holograms and the image sensor. Pixel super-resolved holograms of the sample are generated at each of the three or more distinct colors. De-multiplexed holograms are generated from the pixel super-resolved holograms. Phase information is retrieved from the de-multiplexed holograms using a phase retrieval algorithm to obtain complex holograms. The complex hologram for the three or more distinct colors is digitally combined and back-propagated to a sample plane to generate the color image.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: October 6, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Aydogan Ozcan, Yichen Wu, Yibo Zhang, Wei Luo
  • Patent number: 10748761
    Abstract: A semiconductor manufacturing apparatus includes at least one UV lamp provided at a position facing a surface of a semiconductor substrate arranged to irradiate the surface of the semiconductor substrate with UV light, and a shutter disposed between the surface of the semiconductor substrate and the at least one UV lamp and configured to block UV light emitted by the UV lamp. The shutter includes a first movable part movable in a first direction being an in-plane direction parallel to the semiconductor substrate, and a second movable part movable in a second direction being an in-plane direction perpendicular to the first direction, the second movable part being movable independently of the first movable part.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 18, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Akitsugu Hatazaki, Kotaro Nomura
  • Patent number: 10609365
    Abstract: The present disclosure relates to a system and method for calibrating an optical device, such as a camera. In one example, the system includes a light-emitting device that generates light patterns and an ray generator that is positioned between the light-emitting device and the optical device. The ray generator separates the light emitted as part of the light patterns into a plurality of directional rays. The optical device then captures the directional rays and the captured data, along with data corresponding to the light pattern and the ray generator, are used to calibrate the optical device.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: March 31, 2020
    Assignee: DISNEY ENTERPRISES, INC.
    Inventors: Anselm Grundhöfer, Dominik Thabo Beeler
  • Patent number: 10488821
    Abstract: A holographic display apparatus is provided. The holographic display apparatus includes a spatial light modulator configured to diffract light emitted from an incident light source with a shape corresponding to a computer generated hologram (CGH) pattern to generate an image signal, a filtering optical system configured to filter the image signal to select a first signal component among signal components included in the image signal, a first formation optical system configured to form a focus plane with a smaller size than the first image plane on a surface of a mirror via focus on the first image plane based on the first signal component, and a focus scanner configured to form a beam in a direction of 360 degrees based on a tilting angle of the mirror and rotation of the mirror.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 26, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yongjun Lim, Keehoon Hong
  • Patent number: 10288420
    Abstract: In one embodiment, a method comprises projecting, from a projector, a diffused on an object. The method further includes capturing, with a first camera in a particular location, a reference image of the object while the diffused is projected on the object. The method further includes capturing, with a second camera positioned in the particular location, a test image of the object while the diffused is projected on the object. The method further includes comparing speckles in the reference image to the test image. The projector, first camera and second camera are removably provided to and positioned in a site of the object.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 14, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: YiChang Shih, Myers Abraham Davis, Samuel Wiliam Hasinoff, Frederic Durand, William T. Freeman
  • Patent number: 10114244
    Abstract: A curved display device includes a display panel having a curved shape, and including a first segment, a second segment, and a third segment that are sequentially defined along a curved edge in the display panel, a support member combined with the display panel to support the curved shape of the display panel, and a spacer placed in correspondence with the second segment of the first to third segments and disposed between the display panel and the support member, where the display panel is curved with a first curvature radius along a first direction in the second segment, where the display panel is shaped in at least one of a flat form in each of the first and third segments, and a curved form with a second curvature radius that is larger than the first curvature radius.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: October 30, 2018
    Assignee: Samsung Display Co., LTD.
    Inventors: Jaiku Shin, Mingu Kim, Seongsik Ahn
  • Patent number: 10033961
    Abstract: Digital optical tape archival storage systems and methods are disclosed. A digital optical tape recorder simultaneously writes data and two or more guide tracks onto an unformatted digital optical tape recording medium. A digital optical tape reader includes a camera and an image processor. The camera captures a two-dimensional image of the digital optical tape recording medium including the data and the two or more guide tracks. The image processor extracts the data from the two-dimensional image based, at least in part, on the guide tracks.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: July 24, 2018
    Assignee: Group 47, Inc.
    Inventor: Daniel Scott Rosen
  • Patent number: 10031360
    Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 24, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Samsung Display Co., Ltd.
    Inventors: Jun-seok An, Dong-wook Kim, Sung-hwan Kim, Jee-su Park, Chan-hong Park, Byung-kook Sim, Jong-cheol Lee, Cheol-se Lee, Hyeong-sik Choi, Byung-wook Ahn, Cheong-hun Lee
  • Patent number: 9939780
    Abstract: Various holographic films for recording multicolor volume holograms, especially full color volume reflection holograms, and to manufacturing techniques for such film, and to corresponding methods of recording multicolor and full-color volume, in particular volume reflection holograms. We describe a holographic film for recording a multicolor volume hologram, the film including: a carrier; a first photosensitive recording layer sensitive to one or both of red and green laser light; and a second photosensitive recording layer sensitive to blue laser light. Both the first and second photosensitive recording layers include silver halide and have a grain size of less than 30 nm, and at least one of the photosensitive recording layers has a thickness of greater than 3 ?m and less than 5 ?m.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: April 10, 2018
    Assignee: Bowalter Holographics (Malta) Limited
    Inventor: John David Wiltshire
  • Patent number: 9873037
    Abstract: An information display module for a motor-racing vehicle comprising: a housing attachable to the motor-racing vehicle; a display configured to display race-related information to spectators of said race, said information display module configured to use received information to determine the race-related information to be displayed, said race-related information comprising a relative position of said vehicle to one or more other vehicles in said race.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: January 23, 2018
    Inventor: Anthony Carl Hamilton
  • Patent number: 9773521
    Abstract: In recording technologies for batch formation of a plurality of recording bits in a recording medium by forming a plurality of optical spots using an ultrashort pulse laser and a spatial optical modulator, the batch recordable bit number has an upper limit, resulting in restricted recording speed. The intensity of the optical spot is corrected to increase the batch recordable bit number for increasing the recording speed.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 26, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Ryo Imai, Koichi Watanabe, Manabu Shiozawa
  • Patent number: 9740167
    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: July 14, 2014
    Date of Patent: August 22, 2017
    Assignee: SEEREAL TECHNOLOGIES GMBH
    Inventors: Norbert Leister, Ralf Haussler, Armin Schwerdtner
  • Patent number: 9728219
    Abstract: An optical information recording/reproduction device is capable of appropriately correcting the angle of a reference beam during data reproduction even when a wavelength deviation or an angle deviation in multiplexing and vertical directions of the reference beam occurs in a holographic memory recording medium. The optical information reproduction device has a laser light source that generates a reference beam; an image-capturing unit that detects a diffraction ray to be reproduced from the optical information recoding medium; and an optical detection unit that has at least two light-receiving surfaces and is used for detecting a diffraction ray reproduced by irradiating the reference beam on the optical information recording medium. The device also has a light-shielding unit that shields part of the diffraction ray detected by the optical detection unit; and an error signal calculation unit that generates an error signal from a detection signal outputted by the optical detection unit.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: August 8, 2017
    Assignee: Hitachi, Ltd.
    Inventor: Makoto Hosaka
  • Patent number: 9710955
    Abstract: This technology relates to an image processing device, an image processing method, and a program capable of realizing motion parallax closely related to that of the real world. An image processing unit corrects a depth image formed of a depth value indicating a position in a depth direction of each pixel of a color image of a predetermined viewpoint externally input as an input image based on positional information indicating a position of a viewer and the like. This technology is applicable to an image processing device, which performs a process to correct the depth image based on the positional information as an image process, for example.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: July 18, 2017
    Assignee: Sony Corporation
    Inventors: Goh Kobayashi, Takuro Kawai, Toshinori Ihara, Keisuke Yamaoka
  • Patent number: 9658378
    Abstract: An illumination unit is provided including a coherent light source; a projection optical element which focuses a light beam emitted from the coherent light source onto a focal plane; and a holographic optical element interposed between the coherent light source and the projection optical element, and having an interference pattern formed thereon. The holographic optical element diffracts the light beam emitted from the coherent light source and emits the diffracted light to the projection optical element. Here, the interference pattern on the holographic optical element may have information that diffracts the light beam and thereby cancels a diffraction of the light beam due to an aberration of the projection optical element.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoon Song, Gee-young Sung, Kang-hee Won, Hong-seok Lee
  • Patent number: 9640215
    Abstract: A holographic light-emitting module includes a light source module and a light shape control module. The light source module is configured to provide a signal light beam and a reference light beam, in which polarizations of the signal light beam and the reference light beam are orthogonal. The light shape control module is configured to receive the signal light beam and the reference light beam propagated from the light source module, in which the signal light beam and the reference light beam are modulated and emitted by the light shape control module The reference light beam is surrounded by the signal light beam and located at a center of the signal light beam, and the signal light beam and the reference light beam are partially overlapped.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: May 2, 2017
    Assignee: National Central University
    Inventors: Ching-Cherng Sun, Yeh-Wei Yu
  • Patent number: 9551893
    Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: January 24, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Samsung Display Co., Ltd.
    Inventors: Jun-seok An, Dong-wook Kim, Sung-hwan Kim, Jee-su Park, Chan-hong Park, Byung-kook Sim, Jong-cheol Lee, Cheol-se Lee, Hyeong-sik Choi, Byung-wook Ahn, Cheong-hun Lee
  • Patent number: 9438001
    Abstract: A method for producing a laser device having a laser configured in order to emit a laser beam, a lens (31) which is positionally adjusted with respect to the laser, and a lens holder having at least two parts (2a, b, c) then following one another in a propagation direction (3) of the laser beam, of which at least two lens holder parts (2a, b, c) each have an end side oriented obliquely with respect to the propagation direction (3) and can be brought into a multiplicity of relative positions with respect to one another, respectively, with their end sides oriented obliquely with respect to the propagation direction (3) bearing on one another, wherein the length of the lens holder (1) in the propagation direction (3) is adjusted by selecting one of the relative positions.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: September 6, 2016
    Assignee: OSRAM GmbH
    Inventor: Andreas Rozynski
  • Patent number: 9418323
    Abstract: A method is provided for combining two source images in a relief image. Structural elements are applied that allow a first image to be observed in a first viewing direction and a second image in a second viewing direction. The method reduces a ghosting effect by a) printing a test relief image wherein the two source images comprise patches with a number of basic colors having a predefined amount of colorant; b) measuring for each patch an observed color in each of the viewing directions; c) scaling the source images such that an image element matches a size of a structural element in the relief image; d) selecting a structural element from the test relief image, wherefore the color differences between the image elements of the scaled source images and the patch color becomes minimal, and e) composing a relief image from the selected structural elements.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: August 16, 2016
    Assignee: OCE-TECHNOLOGIES B.V.
    Inventors: Teun R. Baar, Marjan Shahpaski, Maria V. Ortiz Segovia
  • Patent number: 9330704
    Abstract: The optical information recording and reproducing method realizes an increased number of multiplexing in recording and favorably stabilized signal recording in a manner of uniforming media consumption in angle-multiplexed recording by changing a phase of signal light on a pixel basis in a manner in which the speed of a phase change on a pixel basis is constant or is greater than or equal to a certain speed in a page and between pages when the driving speed of a phase mask changes at the time of recording. The optical information recording and reproducing method, while moving an optical element that adds phase information to a light flux which includes two-dimensional page data information in a direction that is perpendicular to an optical axis of the light flux, records the page data on the recording medium by adding the phase information to the light flux.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 3, 2016
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Koichiro Nishimura, Toshiki Ishii, Koji Fujita, Taku Hoshizawa
  • Patent number: 9323218
    Abstract: Techniques for efficiently generating full parallax 3-D holographic images of a 3-D real or synthetic object scene are presented. A holographic generator component (HGC) can receive a real object scene or generate a synthetic object scene. The HGC can downsample the scene by a defined downsampling factor and generate, from the downsampled scene, an intermediate object wavefront recording plane (WRP) that can be placed in close proximity to the scene. The HGC can expand and interpolate the WRP to generate the holographic images. The HGC can decompose a scene into polyphase image components (PICs), generate a WRP for the image components, sum the WRP of the PICs, and expand and interpolate the WRP to generate holographic images of the scene. The HGC can utilize look-up tables to store and use wavefront patterns of each region of an image to facilitate reducing computational operations in generating the holographic images.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: April 26, 2016
    Assignee: CITY UNIVERSITY OF HONG KONG
    Inventor: Peter Wai Ming Tsang
  • Patent number: 9291448
    Abstract: A detection device includes an irradiation unit that irradiates a medium with first irradiation light, a first optical system that has a first incident surface and changes the first irradiation light into second irradiation light, a second optical system that has a second incident surface and changes the first irradiation light into third irradiation light, and a light receiving unit that is provided in a traveling direction of reflection light of the second irradiation light and the third irradiation light, which are specularly reflected by the medium, and receives the reflection light of the second irradiation light and the third irradiation light, which are specularly reflected by the medium, so as to detect a positional deviation amount of an image formed on the medium and detect a density deviation amount of the image formed on the medium.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 22, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kenta Ogata, Naoya Yamasaki, Gen Nakajima
  • Patent number: 9291997
    Abstract: A high speed hologram recording apparatus and method. The hologram recording apparatus includes: a light source for emitting coherent light; a beam splitter for splitting the coherent light emitted from the light source into a signal beam and a reference beam; a signal beam transfer unit comprising an angular deflector that changes a direction of the signal beam according to time, and irradiating the signal beam onto a hologram recording medium; and a reference beam transfer unit irradiating the reference beam at a location of the hologram recording medium where the signal beam is also irradiated.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-seok Pyun, Alexander Morozov, Chil-sung Choi, Ivan Bovsunovskiy, Vladislav Druzhin, Andrew Putilin
  • Patent number: 9201270
    Abstract: A directional backlight is disclosed. The directional backlight has a directional backplane that has a plurality of directional pixels to scatter a plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A modulation layer having a plurality of modulators modulates the plurality of directional lightbeams. The directional backlight can be used to generate a 3D image with multiple views by specifying the characteristics of the directional pixels in the directional backplane.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: December 1, 2015
    Assignee: LEIA INC.
    Inventors: David A. Fattal, James A. Brug, Charles M. Santori, Marco Fiorentino, Zhen Peng
  • Patent number: 9086618
    Abstract: A projector includes: a laser light source that emits laser light; a condensing optical system that collimates the laser light; a holographic recording medium that, when laser light for reproduction is incident thereupon, emits a reproduced holographic optical image on the basis of a holographic image; a light modulation element that modulates the reproduced holographic optical image and emits the result to a projection optical system as an optical image for projection; a projection optical system that projects the optical image for projection; and a focal depth adjustment unit that adjusts a focus depth of the ray bundle projected by the projection optical system.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: July 21, 2015
    Assignee: Nikon Corporation
    Inventor: Akinobu Suga
  • Patent number: 9013773
    Abstract: 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 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 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: Grant
    Filed: December 17, 2012
    Date of Patent: April 21, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hyungseok Bang, Heejin Im, Guensik Lee
  • Patent number: 9001401
    Abstract: 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 hologram fabricated by that process. According to the process for the fabrication of a multi-image type hologram wherein one image changes over to another depending on a viewing direction, the area of a hologram recording material is divided into a plurality of sub-areas. Objects to be displayed on different images are holographically recorded in the respective sub-areas, using reference light having the same angle of incidence, images recorded in the respective sub-areas are simultaneously reconstructed from the recorded first-stage hologram, so that a second-stage hologram recording material is located near the reconstructed object images for recording them as a reflection or transmission type volume hologram.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: April 7, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tsuyoshi Yamauchi, Masachika Watanabe, Tomoko Kumasawa, Makio Kurashige, Akiko Kitamura, Mitsuru Kitamura, Kenji Ueda
  • Publication number: 20150062675
    Abstract: Methods and systems for performing dynamic aperture holography are described. Embodiments include a method of recording multiple holograms in a photosensitive recording medium, wherein multiple signal beam angular apertures used to record the multiple holograms differ from each other. The multiple signal beam angular apertures can facilitate using a larger range of reference beam angular apertures. The multiple holograms are typically multiplexed, and embodiments of dynamic aperture holography enable packing the multiplexed holograms more densely in the recording medium. Embodiments include dynamic aperture holography systems having monocular objective lens architecture.
    Type: Application
    Filed: March 21, 2014
    Publication date: March 5, 2015
    Inventors: Mark R. Ayres, Kenneth E. Anderson, Fredric R. Askham, Bradley J. Sissom
  • Patent number: 8953235
    Abstract: 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 the first and second light beams are coherent light beams. The directing means are adapted to direct the first light beam onto the hologram area along a first direction, and the second light beam onto the hologram area along a second direction. Tilting means are provided for tilting the second direction by a predefined tilt angle with respect to the first direction.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: February 10, 2015
    Assignee: Thomson Licensing
    Inventors: Joachim Knittel, Hartmut Richter
  • 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: 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
  • Publication number: 20140293385
    Abstract: A holographic display system for generating a super hologram with full parallax in different fields of view in the horizontal and vertical directions. The system includes an array of holographic display devices, e.g., spatial light modulators (SLMs), operable to provide a plurality of holographic images of a scene from differing viewpoints of the scene. Each SLM is operated concurrently to output a narrow field of view, elemental hologram. The system includes coarse integral optics combining the holographic images into a single hologram (“super hologram”) viewable in a hologram image plane a distance from the course integral optics. The coarse integral optics combine the holographic images by providing angular tiling of the holographic images, e.g., bending the axes of parallel lenses. In this manner, the field of view, in one direction, of the super hologram is based on the number of holographic display devices provided in the array in one direction.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 2, 2014
    Applicant: DISNEY ENTERPRISES, INC.
    Inventor: QUINN SMITHWICK
  • Patent number: 8848271
    Abstract: 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 path of incidence that extends through the regions. The transparent plate can be moved or the optical beam can be steered to generate the path of incidence. The optical beam exiting the transparent plate has an instantaneous phase value according to the region in which the optical beam is incident. Advantageously, the phase values are repeatable and stable regardless of the location of incidence of the optical beam within the respective regions, and phase changes at high modulation rates are possible. The method and apparatus can be used to modulate a phase difference of a pair of coherent optical beams such as in an interferometric fringe projection system.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: September 30, 2014
    Assignee: Dimensional Photonics, Inc.
    Inventors: Robert F. Dillon, Neil H. K. Judell, Timothy I. Fillion, Gurpreet Singh, Nathan E. Wallace
  • Patent number: 8848276
    Abstract: 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 passing through, and a first light-transmission part is formed for transmitting the light; and a plate-shaped light-shielding member in which a plurality of light-shielding parts are discretely formed for blocking the light, and a second light-transmission part is formed for transmitting the light, in which the phase modulation mask and the light-shielding member overlap each other at least in part, when viewed in an incident direction of the light, and at least one of the phase modulation mask and the light-shielding member is movable in an intersection direction which intersects with the incident direction.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: September 30, 2014
    Assignee: Panasonic Corporation
    Inventor: Shinji Uchida
  • Patent number: 8848266
    Abstract: 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 hologram layer, in which a volume hologram is recorded, which provides a first optically variable information item. The security element (55) has a replication layer, in the surface of which a relief structure providing a second optically variable information item is molded and which is arranged above the volume hologram layer. A partial metallic layer is arranged between the volume hologram layer and the replication layer, wherein the metallic layer is provided in one or a plurality of first zones of the security element and the metallic layer is not provided in one or a plurality of second zones of the security element.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: September 30, 2014
    Assignee: Leonhard Kurz Stiftung & Co. KG
    Inventors: Wayne Robert Tompkin, Norbert Lutz, Markus Burkhardt, Michael Scharfenberg
  • Publication number: 20140285863
    Abstract: Provided is a holographic recording method in which an interference fringe between a reference beam and a signal beam, modulated according to information regarding a plurality of hologram pixels, is recorded on a holographic recording medium, the holographic recording method including multiplexing-recording the interference fringe of the plurality of hologram pixels such that at least a part of the interference fringe recorded of neighboring hologram pixels of the plurality of hologram pixels is overlapped.
    Type: Application
    Filed: September 19, 2013
    Publication date: September 25, 2014
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-seok PYUN, Byoung-ho LEE, Sun-il KIM, Chil-sung CHOI, Soon-gi PARK, Jung-kwuen AN, Kee-hoon HONG, Ji-woon YEOM, Jong-hyun KIM
  • Publication number: 20140285862
    Abstract: An illumination unit is provided including a coherent light source; a projection optical element which focuses a light beam emitted from the coherent light source onto a focal plane; and a holographic optical element interposed between the coherent light source and the projection optical element, and having an interference pattern formed thereon. The holographic optical element diffracts the light beam emitted from the coherent light source and emits the diffracted light to the projection optical element. Here, the interference pattern on the holographic optical element may have information that diffracts the light beam and thereby cancels a diffraction of the light beam due to an aberration of the projection optical element.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 25, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hoon SONG, Gee-young SUNG, Kang-hee WON, Hong-seok LEE
  • Patent number: 8842351
    Abstract: 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 hologram-supporting substrate; illuminating the plurality of micro-holograms in the first substrate through the second substrate, thereby producing a holographic pattern in the second substrate indicative of reflections of the plurality of micro-holograms in the first substrate; providing a third hologram-supporting substrate; and, illuminating the holographic pattern in the second substrate through the third substrate, thereby substantially replicating the plurality of micro-holograms in the first substrate in the third substrate.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: September 23, 2014
    Assignee: General Electric Company
    Inventors: Brian L. Lawrence, Marc Dubois, Pingfan P. Wu, Joseph L. Smolenski, Xiaolei Shi, Eugene P. Boden
  • 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: 8817348
    Abstract: 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 recording multicolor and full-color volume, in particular volume reflection holograms. In one case, a holographic film for recording a multicolor volume hologram is set forth that includes: a carrier; a first photosensitive recording layer sensitive to one or both of red and green laser light; and a second photosensitive recording layer sensitive to blue laser light.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: August 26, 2014
    Assignee: TSSI Systems Limited
    Inventor: John David Wiltshire
  • 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: 20140204437
    Abstract: Systems and methods for dynamic aperture holographic multiplexing are disclosed. One example process may include recording a set of holograms in a recording medium by varying both the reference beam angular aperture and the signal beam angular aperture. The angular aperture of the signal beam may be dynamically changed such that the closest edge of each signal beam angular aperture is selected to be a threshold angle different than the angular aperture of the reference beam used to record it. In some examples, the dynamic aperture holographic multiplexing process may include dynamic aperture equalization to reduce cross-talk, to improve error correction parity distribution for improved recovery transfer rate, to provide multiple locus aperture sharing for increased recording density, and to provide polarization multiplexed shared aperture multiplexing for increased transfer rate in both recording and recovery.
    Type: Application
    Filed: May 1, 2013
    Publication date: July 24, 2014
    Applicant: AKONIA HOLOGRAPHICS LLC
    Inventors: Mark R. AYRES, Kenneth E. ANDERSON, Fredric R. ASKHAM, Bradley Jay SISSOM
  • Patent number: 8786923
    Abstract: 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 holographic medium (e.g., a “submaster”) and recording at least a second information layer with a second holographic medium (e.g., a second “submaster”). The first information layer and the second information layer from the first and second holographic media are then sequentially reconstructed and stored with a single holographic master medium (e.g., a “master”). The holographic master may then be used to record the stored first and second information layers into additional holographic media, for example, into HROM devices or the like.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: July 22, 2014
    Assignee: Akonia Holographics, LLC
    Inventors: Ernest Y. Chuang, Kevin R. Curtis, Yunping Yang
  • Patent number: 8786925
    Abstract: 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 primarily one or more replay color(s), replay being caused by reference beam(s) of substantially the film's replay color(s) incident upon the film at reference angle(s) outside the viewing angle(s). The method also includes angularly-dependent color filters between the hologram films. Each filter substantially transmits the replay color(s) of preceding hologram film(s) within the viewing angles, blocks the replay color(s) of succeeding hologram film(s) within the viewing angles, transmits the replay color(s) of succeeding hologram film(s) at angle(s) close to the replay angle(s) of succeeding hologram film(s), and blocks the replay color(s) of the immediately preceding hologram film at angle(s) close to the replay angle(s) of the immediately preceding hologram film.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: July 22, 2014
    Assignee: Holorad, LLC
    Inventors: Stephen J. Hart, Daniel L. Burman, Dinesh D. Padiyar, Joyce A. Padiyar
  • Publication number: 20140198363
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for providing a display device. In one aspect, the display device may include a light source system, a programmable hologram system, a light-turning layer and a control system. A control system may control the programmable hologram system to generate a sequence of holographic images of point light sources. The control system may control the programmable hologram system according to software stored in a non-transitory medium. By scanning a sequence of holographic images of point light sources across the light-turning layer, a frame of image data can be reproduced on the display device.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Chung-Po Huang, Russell Wayne Gruhlke
  • Patent number: 8780425
    Abstract: 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 reconstructed object beam and one or more reference beams is proposed. A focus of the one or more reference beams within a holographic storage medium is shifted along the optical axis relative to a focus of the object beam or the reconstructed object beam.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: July 15, 2014
    Assignee: Thomson Licensing
    Inventors: Szabolcs Kautny, Krisztian Banko, Gabor Szarvas, Zoltan Karpati
  • Publication number: 20140185115
    Abstract: An integrated hologram optical device, a method of manufacturing the same, and an integrated hologram recording apparatus are provided. The integrated hologram optical device includes a two-dimensional (2D) array of a plurality of hogels. A holographic element is configured to be recorded such that a combination of the plurality of hogels is configured to adjust at least one of an angle and a focal length of a signal beam.
    Type: Application
    Filed: December 2, 2013
    Publication date: July 3, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-kwuen AN, Kyoung-seok PYUN
  • Patent number: RE45496
    Abstract: 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 extraction unit extracts a reproduced data image from a reproduced image frame including the reproduced data image and borders. The determination and calculation unit determines position values of edges of the extracted reproduced data image, and calculates average magnification error values of pixels within line data from position values of start and end point pixels thereof, which are based on the determined position values of the edges. The table stores misalignment compensation values for the pixels within the line data, wherein the misalignment compensation values correspond to predetermined references for average magnification error values.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: April 28, 2015
    Assignee: Maple Vision Technologies Inc.
    Inventor: Pil-Sang Yoon