Holographic Patents (Class 348/40)
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Patent number: 10594999Abstract: A method for creating a pair of stereoscopic images is described. The method includes using at least one lightfield camera which receives respective required camera parameters for a left view and a right view. The required camera parameters define a theoretical stereo image pair to acquire respective actual camera parameters for respective sub aperture images that are generated based on the captured image by the lightfield cameras, to determine a best matching sub aperture image for the left view by comparing the required camera parameter for the left view with the actual camera parameters for the respective sub aperture images, to determine a best matching sub aperture image for right view by comparing the required camera parameter for right view with the actual camera parameters for the respective sub aperture images, and to associate the best matching sub aperture image for left view and the best matching sub aperture image for right view as a pair of stereoscopic images.Type: GrantFiled: June 23, 2017Date of Patent: March 17, 2020Assignee: INTERDIGITAL CE PATENT HOLDINGSInventors: Jurgen Stauder, Benoit Vandame, Cedric Thebault
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Patent number: 10591804Abstract: A plug-and-play fiber-coupled nonlinear optical quantum wave-converter, optimized for quantum communications, comprises a commercial periodically-poled, waveguide-based, nonlinear optical chip, coupled with a pair of substrate-guided holographic (SGH) wavelength division multiplexers (WDM) and a pair of SGH filters; it offers bidirectional difference frequency conversion (DFG) and sum frequency conversion (SFG) simultaneously in a single packaged device.Type: GrantFiled: March 30, 2016Date of Patent: March 17, 2020Assignee: Luminit LLCInventors: Jun Ai, Fedor Dimov, Xiaowei Xia, Selim Shahriar, Russell Kurtz, Chris Griffo
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Patent number: 10585330Abstract: A liquid crystal light deflector includes a first electrode layer including line electrodes, a second electrode layer including a common electrode, and a liquid crystal layer that forms an electrical prism using liquid crystal molecules according to an electric field formed between the first and second electrode layers. The orientations of the liquid crystal molecules may be reset by an electric field formed between line electrodes of adjacent channels within the first electrode layer. A method of deflecting light includes controlling the first electrode layer and the second electrode layer to reset the orientation of the liquid crystal molecules prior to forming an electrical prism in the liquid crystal layer.Type: GrantFiled: January 5, 2018Date of Patent: March 10, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Kim, Alexander V. Morozov, Hoon Song, Kanghee Won, Hongseok Lee
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Patent number: 10580388Abstract: A screen display method and apparatus and a mobile terminal are provided. The method includes: acquiring target offset position information of the display screen of the mobile terminal deviating from a preset reference position; searching for target display region information corresponding to the target offset position information from a preset database, the preset database comprising at least one set of offset position information and display region information corresponding to each set of the offset position information; and displaying content to be displayed by the mobile terminal in a display region indicated by the target display region information.Type: GrantFiled: July 6, 2017Date of Patent: March 3, 2020Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Yugui Lin
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Patent number: 10571105Abstract: A light-emitting apparatus including a light source, a light-diverging element, a conductive structure, and a drive control module is provided. The light source is used to emit a light beam. The light-diverging element is disposed on a transmission path of the light beam, wherein after the light beam passes through the light-diverging element, a plurality of light beams separated from each other are produced. The conductive structure is disposed on a first surface of the light-diverging element. The drive control module is used to drive the light source and is electrically connected to the light source and the conductive structure.Type: GrantFiled: March 6, 2019Date of Patent: February 25, 2020Assignee: Guangzhou Tyrafos Semiconductor Technologies Co., LTDInventor: Hsu-Wen Fu
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Patent number: 10466457Abstract: Among other things, a method comprises imaging a sample displaced between a sensor surface and a surface of a microscopy sample chamber to produce an image of at least a part of the sample. The image is produced using lensless optical microscopy, and the sample contains at least blood from a subject. The method also comprises automatically differentiating cells of different types in the image, generating a count of one or more cell types based on the automatic differentiation, and deriving a radiation dose the subject has absorbed based on the count.Type: GrantFiled: October 11, 2018Date of Patent: November 5, 2019Assignee: Alentic Microscience Inc.Inventor: Alan Marc Fine
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Patent number: 10365607Abstract: The present disclosure provides a hologram display device including a spatial light modulator, a lens assembly, and a plurality of backlights. The plurality of backlights are provided at a light incident side of the spatial light modulator, and the lens assembly is provided between the plurality of backlights and the spatial light modulator. The plurality of backlights are configured to emit light having different directions towards the lens assembly, respectively, the lens assembly is configured to guide received light having different directions to the spatial light modulator, and the spatial light modulator is configured to form images at different positions at a light emergent side of the spatial light modulator according to the light having different directions from the lens assembly, respectively.Type: GrantFiled: August 21, 2017Date of Patent: July 30, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Pan Li
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Patent number: 10310450Abstract: A 3D video processing system with integrated display is described wherein the huge data bandwidth demands on the source-to-display transmission medium is decreased by utilizing innovative 3D light field video data compression at the source along with innovative reconstruction of 3D light field video content from highly compressed 3D video data at the display. The display incorporates parallel processing pipelines integrated with a Quantum Photonics ImagerĀ® for efficient data handling and light imaging.Type: GrantFiled: August 22, 2016Date of Patent: June 4, 2019Assignee: Ostendo Technologies, Inc.Inventors: Andreas Falkenberg, Danillo Bracco Graziosi, Hussein S. El-Ghoroury
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Patent number: 10275849Abstract: An image processing apparatus configured to perform a two-dimensional (2D) fast Fourier transform (FFT) with respect to image data includes a first core and a second core, each of the first core and the second core including a plurality of processors configured to perform a one-dimensional (1D) FFT; and a controller configured to control the first core and the second core to perform a primary two-dimensional (2D) FFT and a secondary 2D FFT with respect to the image data by repeatedly performing the 1D FFT.Type: GrantFiled: February 10, 2017Date of Patent: April 30, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hojung Kim, Yongkyu Kim, Hongseok Lee
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Patent number: 10223808Abstract: A system for determining the gaze endpoint of a subject, the system comprising: a eye tracking unit adapted to determine the gaze direction of one or more eyes of the subject; a head tracking unit adapted to determine the position comprising location and orientation of the eye tracker with respect to a reference coordinate system; a 3D Structure representation unit, that uses the 3D structure and position of objects of the scene in the reference coordinate system to provide a 3D structure representation of the scene; based on the gaze direction, the eye tracker position and the 3D structure representation, calculating the gaze endpoint on an object of the 3D structure representation of the scene or determining the object itself.Type: GrantFiled: September 17, 2013Date of Patent: March 5, 2019Assignee: SENSOMOTORIC INSTRUMENTS GESELLSCHAFT FUR INNOVATIVE SENSORIK MBHInventors: Jan Hoffmann, Tom Sengelaub, Denis Williams
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Patent number: 10216145Abstract: An apparatus for hologram interaction is disclosed. A method and system also perform the functions of the apparatus. The apparatus includes an identification module that identifies a first hologram being projected within a space. The first hologram is projected by a first system. The apparatus includes a projection module that projects a second hologram within the space. The second hologram projected by a second system. The apparatus includes a detection module that detects movement and position of the first hologram and an interaction module that controls position and movement of the second hologram to dynamically interact with the first hologram. The first hologram dynamically interacting with the second hologram includes reactions of the second hologram in response to the detected movement and the position of the first hologram.Type: GrantFiled: October 27, 2016Date of Patent: February 26, 2019Assignee: International Business Machines CorporationInventors: Eric V. Kline, Sarbajit K. Rakshit
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Patent number: 10209675Abstract: Methods and systems and components made according to the methods and systems, are disclosed relating to the generation of a holographic image, including a color-containing holographic image, generated exclusively optically addressing information to a projection system.Type: GrantFiled: March 29, 2016Date of Patent: February 19, 2019Assignee: The Boeing CompanyInventors: Jeffrey H. Hunt, Robert J. Atmur
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Patent number: 10156829Abstract: The present invention can realize both a transmission type and a reflection type, and provides a holographic microscope which can exceed the resolution of the conventional optical microscope, a hologram data acquisition method for a high-resolution image, and a high-resolution hologram image reconstruction method. In-line spherical wave reference light (L) is recorded in a hologram (ILR) using spherical wave reference light (R), and an object light (Oj) and an illumination light (Qj) are recorded in a hologram (IjOQR) using a spherical wave reference light (R) by illuminating the object with an illumination light (Qj, j=1, . . . , N) which is changed its incident direction. From those holograms, a hologram (JjOQL), from which the component of the reference light (R) is removed, is generated, and from the hologram, a light wave (hj) is generated.Type: GrantFiled: October 28, 2014Date of Patent: December 18, 2018Assignee: University of HyogoInventor: Kunihiro Sato
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Patent number: 10107997Abstract: Among other things, a method comprises imaging a sample displaced between a sensor surface and a surface of a microscopy sample chamber to produce an image of at least a part of the sample. The image is produced using lensless optical microscopy, and the sample contains at least blood from a subject. The method also comprises automatically differentiating cells of different types in the image, generating a count of one or more cell types based on the automatic differentiation, and deriving a radiation dose the subject has absorbed based on the count.Type: GrantFiled: April 2, 2018Date of Patent: October 23, 2018Assignee: Alentic Microscience Inc.Inventor: Alan Marc Fine
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Patent number: 9952417Abstract: Among other things, a method comprises imaging a sample displaced between a sensor surface and a surface of a microscopy sample chamber to produce an image of at least a part of the sample. The image is produced using lensless optical microscopy, and the sample contains at least blood from a subject. The method also comprises automatically differentiating cells of different types in the image, generating a count of one or more cell types based on the automatic differentiation, and deriving a radiation dose the subject has absorbed based on the count.Type: GrantFiled: June 20, 2017Date of Patent: April 24, 2018Assignee: Alentic Microscience Inc.Inventor: Alan Marc Fine
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Patent number: 9939643Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.Type: GrantFiled: May 6, 2015Date of Patent: April 10, 2018Assignee: Magic Leap, Inc.Inventor: Brian T. Schowengerdt
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Patent number: 9915824Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.Type: GrantFiled: May 6, 2015Date of Patent: March 13, 2018Assignee: Magic Leap, Inc.Inventors: Brian T. Schowengerdt, Mathew D. Watson
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Patent number: 9841601Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.Type: GrantFiled: May 6, 2015Date of Patent: December 12, 2017Assignee: MAGIC LEAP, INC.Inventor: Brian T. Schowengerdt
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Patent number: 9829860Abstract: A holographic display device for computing a video hologram of a scene is disclosed. The scene comprises a multitude of object points. The holographic display device comprises at least one light modulator means.Type: GrantFiled: February 10, 2017Date of Patent: November 28, 2017Assignee: SEEREAL TECHNOLOGIES S.A.Inventor: Alexander Schwerdtner
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Patent number: 9712794Abstract: A projector has a light source, image forming units, a projection lens, a first optical system and a second optical system. The image forming units form image light by adjusting, on a per-pixel basis, the intensity of light emitted by the light source. The projection lens projects the image light formed by the image forming units to the outside. The first optical system guides light of a first wavelength emitted by the light source to the projection lens, and the second optical system guides light of a second wavelength emitted by the light source to the projection lens. The f-number of the first optical system is higher than the f-number of the second optical system.Type: GrantFiled: June 13, 2013Date of Patent: July 18, 2017Assignee: NEC Display Solutions, Ltd.Inventor: Eisaku Shouji
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Patent number: 9661272Abstract: This specification relates to an apparatus, system and method of projecting holographic images for a video conference, wherein a user may use the apparatus for telecommunication transmissions. The apparatus also includes biometric verification means for verifying the identity of the user using his/her biometric authentication credentials. Upon verification of the user's biometric sample, a keypad door is opened to reveal a concealed keypad and a camera door is also opened to reveal and release a telescopic camera in the retracted position, enabled for capturing an image (video including picture and audio) of teleconferencing attendees that are within the apparatus' field of view, where the captured image may be transmitted to a receiving holographic video conferencing apparatus, where the captured video image is projected as a hologram, with audio output provided via the speaker/microphone system.Type: GrantFiled: January 28, 2016Date of Patent: May 23, 2017Inventor: Isaac S. Daniel
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Patent number: 9581752Abstract: A display device includes a display panel. A light-guide film is attached to a light-incident surface of the display panel. The light-guide film includes a light reflecting layer, a light exiting layer between the light reflecting layer and the display panel, and waveguide parts situated between the light reflecting layer and the light exiting layer. The light exiting layer has exit openings at positions facing each waveguide part, with each exit opening also facing a sub-pixel unit in the display panel. The display device also includes a light source. An end of each waveguide part is in communication with the light source. The light-guide film replaces a conventional backlight unit such that a thinner design for the display device is possible.Type: GrantFiled: September 29, 2014Date of Patent: February 28, 2017Assignees: Boe Technology Group Co., Ltd., Beijing Boe Display Technology Co., Ltd.Inventor: Ling Bai
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Patent number: 9565420Abstract: This image processor 10 includes: an input interface 11 that receives first and second images, on one of which the position of the subject has shifted in a particular direction from the position on the other; a color image generating section 13a that generates a color image in which the pixel values of respective pixels of the first and second images are used as the values of first and second colors, respectively; a decision section 13b that calculates an index value indicating the degree of color shift between the first and second colors in the color image and that determines, based on the index value, whether or not the first and second images match each other; and an image moving section 13c that performs, if the decision has been made that the first and second images do not match each other, the processing of making the second image closer to the first image by replacing the pixel value of each pixel of the second image with the pixel value of a pixel that is adjacent to the former pixel in the particularType: GrantFiled: March 14, 2013Date of Patent: February 7, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masao Hiramoto, Yasunori Ishii, Yusuke Monobe
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Patent number: 9465228Abstract: A synthetic aperture optics (SAO) imaging method minimizes the number of selective excitation patterns used to illuminate the imaging target, based on the objects' physical characteristics corresponding to spatial frequency content from the illuminated target and/or one or more parameters of the optical imaging system used for SAO. With the minimized number of selective excitation patterns, the time required to perform SAO is reduced dramatically, thereby allowing SAO to be used with DNA sequencing applications that require massive parallelization for cost reduction and high throughput. In addition, an SAO apparatus optimized to perform the SAO method is provided. The SAO apparatus includes a plurality of interference pattern generation modules that can be arranged in a half-ring shape.Type: GrantFiled: March 19, 2010Date of Patent: October 11, 2016Assignee: Optical Biosystems, Inc.Inventors: Chun-Sheu Lee, Jong Buhm Park
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Patent number: 9335737Abstract: Technologies are generally described for generating and recording holograms of an object using a plurality of light sources and an array of image sensors arranged to surround the object. In various examples, an apparatus may be configured to irradiate a plurality of light beams from multiple light sources to a corresponding number of beam splitters, which are configured to generate a first portion of the light beams that can be irradiated on the object, and a second portion of the light beams that can be reflected by a mirror unit to generate reference beams. Some apparatus can also include an array of image sensors that may be configured to receive images of interference caused by the reference beams and object beams scattered by the object.Type: GrantFiled: November 15, 2012Date of Patent: May 10, 2016Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Eiji Yamaichi
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Patent number: 9297647Abstract: An apparatus for detecting a 3D structure of an object. The apparatus has first and second laser emitters which generate laser radiation having first and second wavelengths, respectively, the first wavelength being different from the second wavelength. Optical devices are disclosed, including a beam splitter, which splits the laser radiation of the laser emitters in each case into a reference radiation and an illuminating radiation. The illuminating radiation impinges upon the object to be measured, is reflected by the object as object radiation and interferes with the reference radiation. A detector receives the interference patterns. The laser emitters are located such that the illuminating radiation of the first and second laser emitters impinge upon the object at different angles of incidence. Also discussed is a measuring device which measures the two wavelengths of the laser radiation of the laser emitters and influences the recording of the interference patterns.Type: GrantFiled: April 23, 2014Date of Patent: March 29, 2016Assignee: Voco GmbHInventor: Alexander Knüttel
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Patent number: 9086682Abstract: A digital hologram image reproducing device includes a light modulator reproducing a hologram interference fringe image, a first panel driving circuit which scans a first display panel and writes data of the hologram interference fringe image to the first display panel, a first timing controller controlling an operation timing of the first panel driving circuit, a second panel driving circuit which scans a second display panel and writes data of the hologram interference fringe image to the second display panel, a second timing controller controlling an operation timing of the second panel driving circuit, and a panel synchronization circuit which simultaneously transfers a polarity control signal received from one of the first and second timing controllers to the first and second panel driving circuits.Type: GrantFiled: May 23, 2012Date of Patent: July 21, 2015Assignee: LG Display Co., Ltd.Inventors: Wooyoung Choe, Seungho Baek, Juseong Park, Jooah Kim
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Patent number: 9086681Abstract: An analytical method for computing a video hologram for a holographic reproduction device having at least one light modulation means is disclosed, wherein a scene split into object points is encoded as a whole hologram and can be seen as a reconstruction from a visibility region, located within a periodicity interval of the reconstruction. The visibility region, together with each object point of the scene to be reconstructed, defines a subhologram and the whole hologram is generated from a superposition of subholograms, wherein the complex hologram values of a subhologram are determined from the wave front of the respective object point to be reconstructed in a modulator region of the light modulation means, by calculating and evaluating the transmission or modulation functions of an imaging element formed in the modulator region. The object point to be reconstructed is located in the focal point of the imaging element.Type: GrantFiled: May 6, 2013Date of Patent: July 21, 2015Assignee: SEEREAL TECHNOLOGIES S.A.Inventor: Alexander Schwerdtner
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Patent number: 9036003Abstract: This invention discloses a multi-pitching angle suspended space 3D display device with 360° FOV, comprising: a transmitted composite deflective diffusing screen, a high speed projector, an image generator, a detecting module and a rotating drive mechanism. The high speed projector projects the composite images of the 3D objects of different pitching angles and horizontal 360° views to the composite deflective diffusing screen that rotates at a high speed. The composite deflective diffusing screen is able to control the vertical deflecting and scattering angles and horizontal diffusing angle for incident rays with different angles, allowing the surrounding viewers at different height levels to see the images corresponding to their viewpoints, making the displayed 3D objects suspended over the composite deflecting scattering screen, of which the position does not change as the height of the viewpoint changes.Type: GrantFiled: September 5, 2011Date of Patent: May 19, 2015Assignee: ZHEJIANG UNIVERSITYInventors: Xu Liu, Xinxing Xia, Yifan Peng, Haifeng Li, Zhenrong Zheng
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Publication number: 20150130896Abstract: This disclosure provides systems, methods and apparatus for enhancing the brightness and/or contrast ratio of display devices. In one aspect, the display devices can include a light redirector that is optically coupled with a diffuser. The light redirector includes a plurality of holographic features that can receive near-collimated light at non-normal angles with respect to a normal to a surface of the light redirector and redirects the received light along a direction that is substantially normal to the surface.Type: ApplicationFiled: May 8, 2014Publication date: May 14, 2015Applicant: QUALCOMM MEMS Technologies, Inc.Inventors: Jian Ma, Kebin Li, John Hyunchul Hong, Tallis Young Chang
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Publication number: 20150124051Abstract: A method for delivering an enhanced reality message includes recording a holographic image displayed on a matte surface with the built in camera of a mobile electronic device, such as a web-cam, tablet, smartphone, iPhone or the like. The camera takes a photo of the marker and software in an app of the electronic device produces a calibration reference based on the specific marker. The user selects, accesses, and downloads a holographic image from a library of unsealed holograms stored on the mobile device, whereupon the software in the app rescales the selected image as well as all unselected images in the library. The image is recorded and saved for future access, and, if desired, uploaded to the internet for sharing via an e-mail or social media directly from the software. The unsealed holographic image is calibrated, or scaled, to the size of any selected matte surface to create a ālife sizeā image when projected thereonto.Type: ApplicationFiled: September 2, 2014Publication date: May 7, 2015Inventor: Robert Schinker
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Publication number: 20150124050Abstract: A method for delivering an enhanced reality message includes recording a holographic image displayed on a matte surface with the built in camera of a mobile electronic device or web-cam. The holographic image is pre-calibrated to the size of the matte surface to create a ālife sizeā image when projected thereonto. The images are accessed via a downloadable web-based application stored on the mobile device. When the recording is concluded it can be shared via e-mail or social media directly from the software.Type: ApplicationFiled: November 5, 2013Publication date: May 7, 2015Inventor: Robert Schinker
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Patent number: 9025005Abstract: Technologies are generally described for reproducing holographic images by causing a photo-induced change in the diffractive index of a holographic recording medium. An example device may include a light irradiation unit and a transparent substrate. The light irradiation unit can be configured to transmit a photo-inducing light. Further, the transparent substrate may have a predetermined refractive index and can be configured to include a first surface and a second surface opposite the first surface. The first surface can be configured to receive an incident light, and the second surface can be configured to receive the photo-inducing light. The transparent substrate can be configured to form interference fringe patterns from a photo-induced change in the refractive index of the transparent substrate responsive to the photo-induced light.Type: GrantFiled: May 30, 2012Date of Patent: May 5, 2015Assignee: Empire Technology Development LLCInventor: Eiji Yamaichi
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Publication number: 20150116454Abstract: The present disclosure provides a mobile terminal comprising: a main body of the terminal; a holography module attached to the main body of the terminal and positioned so as to output a holographic image into a preset space; and a first camera module arranged in the direction of the preset space so as to film the holographic image. Also, the present invention provides a system for controlling holography comprising the mobile terminal and a target apparatus. The target apparatus is configured so as to film the holographic image by communicating with the mobile terminal or to analyze the holographic image and generate an operational command corresponding thereto.Type: ApplicationFiled: September 21, 2012Publication date: April 30, 2015Inventors: Jonghwan Kim, Jongsuk Won, Iwon Choi, Daeeop Yun
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Patent number: 9013542Abstract: This invention discloses an image capture device and an image synthesis method thereof. The image capture device comprises an image pickup module and a processing module. The image pickup module scans a plurality of visual angles of a scene in advance to obtain a plurality of temporary images. Each of the temporary images has a scanning focal length value. The processing module analyzes the plurality of temporary image of each of the visual angles to obtain a temporary focal length value. The processing module obtains a weighting focal length value by each temporary focal length value by using a function to control the image pickup module in order to perform a panorama image capturing process according to the weighting focal length value.Type: GrantFiled: May 17, 2012Date of Patent: April 21, 2015Assignee: Altek CorporationInventors: Hong-Long Chou, Chia-Chun Tseng, Chia-Yu Wu
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Publication number: 20150103140Abstract: Provided are modular volume holographic imaging system (VHIS) endoscopic systems, comprising: an endoscope attachment module having a microscope objective lens, a single or cascaded compensated relay system configured to preserve an optical wavefront for use with a single or multiplexed volume hologram to select wavefronts originating from different object depths, and a system aperture; and a handle module configured to be reversibly attachable for operative communication with the endoscope attachment module, and having a beam splitter; a relay having adjustable spacing for object space focus compensation, and a single or multiplexed volume hologram suitable in operation to select wavefronts originating from different object depths, and wherein the handle module is further configured for operative communication with an illumination source and imaging optics. Preferably, an illumination module and an imaging module are configured to be in operative, reversibly attachable communication with the handle module.Type: ApplicationFiled: October 19, 2012Publication date: April 16, 2015Applicant: The Arizona Board of Regents on Behalf of the University of ArizonaInventors: Raymond K. Kostuk, Paul J. Gelsinger-Austin, Johnathan W. Brownlee, Jennifer K. Barton, Erich de Leon, Michael Gordon
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Patent number: 9007433Abstract: A system for imaging a cytological sample includes a sample holder configured to hold a cytological sample. A spatial filter is disposed at a distance z1 from the sample holder on first side of the sample holder, the spatial filter having an aperture disposed therein configured to allow the passage of illumination. An imaging sensor array is disposed at a distance z2 from the sample holder on a second, opposite side of the sample holder. An illumination source is configured to illuminate the cytological sample through the aperture, the spatial filter being interposed between the illumination source and the sample holder.Type: GrantFiled: October 19, 2010Date of Patent: April 14, 2015Assignee: The Regents of the University of CaliforniaInventors: Aydogan Ozcan, Serhan Omer Isikman, Chetin Oztoprak
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Publication number: 20150097925Abstract: Provided are an apparatus and a method for displaying a hologram based on pupil tracking using a hybrid camera, wherein a hologram display apparatus includes a pupil tracker to track a location of a pupil of a user using a depth image and a color image generated by capturing an image of the user, a viewing window controller to control a viewing window of a hologram based on the tracked location of the pupil of the user, and a hologram generator to generate a hologram based on the controlled viewing window.Type: ApplicationFiled: October 1, 2014Publication date: April 9, 2015Inventors: Hyon Gon CHOO, Min Sik PARK, Hyun Eui KIM, Kyung Ae MOON, Jin Woong KIM
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Patent number: 8994786Abstract: Systems, methods, and devices that generate and display a multiple view 3-D holographic image (āimageā) of a 3-D real or synthetic scene are presented. A projection system captures visual information of the 3-D scene from various perspectives and generates model data to create a 3-D model of the scene. The model data is converted to holographic data, which is respectively portioned corresponding to the respective perspectives of the scene and used to generate and display respective portions of the image on respective display sections. The display sections can be separate display sections corresponding to the various perspectives, or the display sections can be on a single display that is divided into sections for the various perspectives and a 3-D adapter is employed to facilitate display of the image in the display area, wherein reflector components can be used to reflect the portions of the image to the display area.Type: GrantFiled: April 8, 2010Date of Patent: March 31, 2015Assignee: City University of Hong KongInventors: Peter Wai Ming Tsang, Wu Chao Situ, Kayton Wai Keung Cheung
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Publication number: 20150085069Abstract: Technologies are generally related to holographic imaging. In some examples, techniques are described for generating a holographic image of an object using a plurality of light sources, a shutter, and an image sensor array. Each of the light sources is configured to generate a light beam using a respective wavelength in a different range. In various examples, an apparatus as described here may be configured to control the shutter to receive the light beams from the plurality of light sources and selectively pass each of the received light beams to provide a selected light beam. The apparatus may further include a beam splitter and a mirror unit configured to generate an object light beam and a reference light beam from the selected light beam. The apparatus may include an image sensor array configured to detect an image of interference caused by the reference light beam and the object light beam.Type: ApplicationFiled: April 19, 2013Publication date: March 26, 2015Inventor: Eiji Yamaichi
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Publication number: 20150077514Abstract: 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: ApplicationFiled: November 14, 2014Publication date: March 19, 2015Inventor: Eiji YAMAICHI
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Patent number: 8970478Abstract: An apparatus comprising a sensor configured to detect the position and orientation of a user viewpoint with respect to an auto-stereoscopic display; a processor configured to determine a surface viewable from the user viewpoint of at least one three dimensional object; and an image generator configured to generate a left and right eye image for display on the auto-stereoscopic display dependent on the surface viewable from the user viewpoint.Type: GrantFiled: October 14, 2009Date of Patent: March 3, 2015Assignee: Nokia CorporationInventor: Panu Marten Jesper Johansson
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Patent number: 8937641Abstract: A holographic map is formed of one or more holograms or images conforming to the open/closed aperture theorem and grazing angle compensated. A hologram can be thought of as the sum of all images over a range of angles, wherein the frequency and aspect information is coded into two dimensions. An open/closed aperture image is an image having all points in the image observed over the same range of angles. Grazing angle compensation projects the data onto a representation of the sea floor and the image is rescaled by the cosine (or secant) of the angle between a ray connecting the sonar to a point on the sea floor. A valid range of viewing aspects is defined. The images in the holographic map have both a frequency band and range of aspects that, after grazing angle compensation, describe all locations in the map.Type: GrantFiled: March 15, 2010Date of Patent: January 20, 2015Assignee: The United States of America as represented by the Secretary of the NavyInventor: Richard J. Rikoski
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Publication number: 20140375763Abstract: Provided is an optically addressable spatial light modulator (OASLM)-based holographic display and a method of operating the same. The display includes an addressing unit including a light source unit emitting a plurality of recording beams, a driving mirror array including driving mirrors that each reflect a recording beam incident thereon, and a mirror member array including mirror members that each obliquely reflect a recording beam incident thereon, in which each of the driving mirrors corresponds to one of the mirror members. The recording beams, which are transmitted by the addressing unit, are focused onto the OASLM by micro lenses of a lenslet array. The OASLM is optically addressed by the recording beams focused by the micro lenses of the lenslet array and thus modulates and diffracts a reproduction beam, incident thereon from a reproduction beam providing unit, and thus a holographic image is reproduced.Type: ApplicationFiled: June 3, 2014Publication date: December 25, 2014Applicants: SAMSUNG ELECTRONICS CO., LTD., CAMBRIDGE ENTERPRISE LIMITEDInventors: Hong-seok LEE, Hoon SONG, Kang-hee WON, Neil COLLINGS, Daping CHU
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Publication number: 20140340476Abstract: A digital holographic microscope is provided. The digital holographic microscope includes a light source, a grating, an image sensing device, and an optical module. The light source is configured for providing a light beam. The grating is disposed between the light source and a sample. The grating is configured for splitting the light beam into a reference light beam and an object light beam. The image sensing device is configured for collecting the reference light beam, and collecting the object light beam reflected from the sample. The optical module is disposed between the light source and the sample, and is configured for guiding the reference light beam to the image sensing device, and guiding the object light beam to the sample.Type: ApplicationFiled: October 7, 2013Publication date: November 20, 2014Applicant: National Central UniversityInventors: Ching-Cherng SUN, Yeh-Wei YU
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Patent number: 8890931Abstract: Systems, methods, and devices that generate and display a holographic image(s) of a 3-D real or synthetic object scene are presented. A holographic generator component (HGC) partitions a 3-D object scene into a horizontal stack of regularly spaced vertical sub-planes that are each contributed to a respective sub-line. The HGC converts the sequence of sub-lines into a collection of diffraction patterns, which are summed up and interfered with a reference beam to generate the complete hologram, which can be or can approximate a Fresnel hologram. A multi-rate filter is employed to facilitate converting sub-lines to diffraction patterns more quickly. The multi-rate filtering can be realized using convolution in the spatial domain, realized in the frequency domain using a fast Fourier transform, and/or realized in the frequency domain using a graphic processing unit.Type: GrantFiled: July 18, 2011Date of Patent: November 18, 2014Assignee: City University of Hong KongInventors: Peter Wai Ming Tsang, Kayton Wai Keung Cheung
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Publication number: 20140327735Abstract: A portable inspection probe for the inspection of a recessed mating surface of an optical fiber connector is provided. In one variant, the portable inspection probe includes a digital holographic detection module operable to digitally record a hologram of the recessed mating surface, and a rigid probe tip configured to be optically coupled to the digital holographic detection module and shaped to provide optical access to the recessed mating surface. In another variant, the portable inspection probe is to be used with a rigid probe tip connectable thereto, and the digital holographic detection module includes a probing optical assembly not traversed by a reference beam and configured to direct an object beam onto the recessed mating surface and to collect the object beam upon reflection thereof by the recessed mating surface. An inspection system and an inspection method are also provided.Type: ApplicationFiled: December 21, 2012Publication date: November 6, 2014Inventors: Bernard Ruchet, Normand Cyr
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Publication number: 20140320596Abstract: A method of presenting a sporting event at a plurality of venues in real time or nearly real time. The images and sounds of persons participating in a live sporting event at a live venue are captured using a plurality of cameras and microphones. The captured images and sounds are presented at the remote venue. The captured images are presented as holographic images in real time or nearly real time using a plurality of holographic image presentation devices. The seats at the remote venue may be configured to emulate the configuration of seats at the live venue.Type: ApplicationFiled: April 25, 2013Publication date: October 30, 2014Inventor: George Allen Qualls
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Publication number: 20140300694Abstract: An anisotropic spatial acousto-optic modulator for a holographic display system includes a substrate, an anisotropic waveguide that guides light into a single polarization, and a transducer that generates surface acoustic waves that propagate linearly with the guided, polarized light, converting at least some of the polarized light into a leaky mode of orthogonally polarized light. The acoustic waves may be encoded with holographic information. The modulator may include coupling devices for coupling light into the waveguide, which may have multiple channels. A holographic video display system includes at least one anisotropic spatial acousto-optic modulator. The pattern of the surface acoustic waves, encoded with holographic information, acts as a diffraction pattern that causes the modulator output to form a wavefront that becomes at least part of a holographic image. The system may have multiple channels in multiple waveguides, wherein each waveguide writes one or more lines of the holographic image.Type: ApplicationFiled: March 14, 2014Publication date: October 9, 2014Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Daniel E. Smalley, V. Michael Bove, JR., Quinn Y. J. Smithwick
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Publication number: 20140300696Abstract: A method of imaging includes illuminating a sample spaced apart from an image sensor at a multiple distances. Image frames of the sample obtained at each distance are registered to one another and lost phase information from the registered higher resolution image frames is iteratively recovered. Amplitude and/or phase images of the sample are reconstructed based at least in part on the recovered lost phase information.Type: ApplicationFiled: July 20, 2012Publication date: October 9, 2014Inventors: Aydogan Ozcan, Alon Greenbaum