Holographic Patents (Class 348/40)
  • Patent number: 10209675
    Abstract: 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: Grant
    Filed: March 29, 2016
    Date of Patent: February 19, 2019
    Assignee: The Boeing Company
    Inventors: Jeffrey H. Hunt, Robert J. Atmur
  • Patent number: 10156829
    Abstract: 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: Grant
    Filed: October 28, 2014
    Date of Patent: December 18, 2018
    Assignee: University of Hyogo
    Inventor: Kunihiro Sato
  • Patent number: 10107997
    Abstract: 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: Grant
    Filed: April 2, 2018
    Date of Patent: October 23, 2018
    Assignee: Alentic Microscience Inc.
    Inventor: Alan Marc Fine
  • Patent number: 9952417
    Abstract: 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: Grant
    Filed: June 20, 2017
    Date of Patent: April 24, 2018
    Assignee: Alentic Microscience Inc.
    Inventor: Alan Marc Fine
  • Patent number: 9939643
    Abstract: 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: Grant
    Filed: May 6, 2015
    Date of Patent: April 10, 2018
    Assignee: Magic Leap, Inc.
    Inventor: Brian T. Schowengerdt
  • Patent number: 9915824
    Abstract: 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: Grant
    Filed: May 6, 2015
    Date of Patent: March 13, 2018
    Assignee: Magic Leap, Inc.
    Inventors: Brian T. Schowengerdt, Mathew D. Watson
  • Patent number: 9841601
    Abstract: 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: Grant
    Filed: May 6, 2015
    Date of Patent: December 12, 2017
    Assignee: MAGIC LEAP, INC.
    Inventor: Brian T. Schowengerdt
  • Patent number: 9829860
    Abstract: 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: Grant
    Filed: February 10, 2017
    Date of Patent: November 28, 2017
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventor: Alexander Schwerdtner
  • Patent number: 9712794
    Abstract: 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: Grant
    Filed: June 13, 2013
    Date of Patent: July 18, 2017
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Eisaku Shouji
  • Patent number: 9661272
    Abstract: 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: Grant
    Filed: January 28, 2016
    Date of Patent: May 23, 2017
    Inventor: Isaac S. Daniel
  • Patent number: 9581752
    Abstract: 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: Grant
    Filed: September 29, 2014
    Date of Patent: February 28, 2017
    Assignees: Boe Technology Group Co., Ltd., Beijing Boe Display Technology Co., Ltd.
    Inventor: Ling Bai
  • Patent number: 9565420
    Abstract: 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 particular
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 7, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masao Hiramoto, Yasunori Ishii, Yusuke Monobe
  • Patent number: 9465228
    Abstract: 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: Grant
    Filed: March 19, 2010
    Date of Patent: October 11, 2016
    Assignee: Optical Biosystems, Inc.
    Inventors: Chun-Sheu Lee, Jong Buhm Park
  • Patent number: 9335737
    Abstract: 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: Grant
    Filed: November 15, 2012
    Date of Patent: May 10, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Eiji Yamaichi
  • Patent number: 9297647
    Abstract: 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: Grant
    Filed: April 23, 2014
    Date of Patent: March 29, 2016
    Assignee: Voco GmbH
    Inventor: Alexander Knüttel
  • Patent number: 9086682
    Abstract: 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: Grant
    Filed: May 23, 2012
    Date of Patent: July 21, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Wooyoung Choe, Seungho Baek, Juseong Park, Jooah Kim
  • Patent number: 9086681
    Abstract: 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: Grant
    Filed: May 6, 2013
    Date of Patent: July 21, 2015
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventor: Alexander Schwerdtner
  • Patent number: 9036003
    Abstract: 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: Grant
    Filed: September 5, 2011
    Date of Patent: May 19, 2015
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Xu Liu, Xinxing Xia, Yifan Peng, Haifeng Li, Zhenrong Zheng
  • Publication number: 20150130896
    Abstract: 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: Application
    Filed: May 8, 2014
    Publication date: May 14, 2015
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jian Ma, Kebin Li, John Hyunchul Hong, Tallis Young Chang
  • Publication number: 20150124051
    Abstract: 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 “life size” image when projected thereonto.
    Type: Application
    Filed: September 2, 2014
    Publication date: May 7, 2015
    Inventor: Robert Schinker
  • Publication number: 20150124050
    Abstract: 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 “life size” 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: Application
    Filed: November 5, 2013
    Publication date: May 7, 2015
    Inventor: Robert Schinker
  • Patent number: 9025005
    Abstract: 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: Grant
    Filed: May 30, 2012
    Date of Patent: May 5, 2015
    Assignee: Empire Technology Development LLC
    Inventor: Eiji Yamaichi
  • Publication number: 20150116454
    Abstract: 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: Application
    Filed: September 21, 2012
    Publication date: April 30, 2015
    Inventors: Jonghwan Kim, Jongsuk Won, Iwon Choi, Daeeop Yun
  • Patent number: 9013542
    Abstract: 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: Grant
    Filed: May 17, 2012
    Date of Patent: April 21, 2015
    Assignee: Altek Corporation
    Inventors: Hong-Long Chou, Chia-Chun Tseng, Chia-Yu Wu
  • Publication number: 20150103140
    Abstract: 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: Application
    Filed: October 19, 2012
    Publication date: April 16, 2015
    Applicant: The Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Raymond K. Kostuk, Paul J. Gelsinger-Austin, Johnathan W. Brownlee, Jennifer K. Barton, Erich de Leon, Michael Gordon
  • Patent number: 9007433
    Abstract: 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: Grant
    Filed: October 19, 2010
    Date of Patent: April 14, 2015
    Assignee: The Regents of the University of California
    Inventors: Aydogan Ozcan, Serhan Omer Isikman, Chetin Oztoprak
  • Publication number: 20150097925
    Abstract: 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: Application
    Filed: October 1, 2014
    Publication date: April 9, 2015
    Inventors: Hyon Gon CHOO, Min Sik PARK, Hyun Eui KIM, Kyung Ae MOON, Jin Woong KIM
  • Patent number: 8994786
    Abstract: Systems, methods, and devices that generate and display a multiple view 3-D holographic image (“image”) 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: Grant
    Filed: April 8, 2010
    Date of Patent: March 31, 2015
    Assignee: City University of Hong Kong
    Inventors: Peter Wai Ming Tsang, Wu Chao Situ, Kayton Wai Keung Cheung
  • Publication number: 20150085069
    Abstract: 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: Application
    Filed: April 19, 2013
    Publication date: March 26, 2015
    Inventor: Eiji Yamaichi
  • Publication number: 20150077514
    Abstract: Technologies are generally described for generating an image in a holographic imaging device by causing multiple reflections of a hologram reconstruction light on one side of a display panel in the holographic imaging device. An example device may include a display panel, a semi-transparent mirror layer on the display panel, a mirror layer at a side of the semi-transparent mirror layer opposite to the display panel, and a light irradiation unit opposite to the semi-transparent mirror layer. The light irradiation unit may irradiate a hologram reconstruction light on the semi-transparent mirror layer at a predetermined incident angle. The semi-transparent mirror layer may reflect a portion of the hologram reconstruction light such that the reflected portion of the hologram reconstruction light may be incident on the mirror layer. The semi-transparent mirror layer may transmit the other portion of the hologram reconstruction light to cause interference in the hologram.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 19, 2015
    Inventor: Eiji YAMAICHI
  • Patent number: 8970478
    Abstract: 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: Grant
    Filed: October 14, 2009
    Date of Patent: March 3, 2015
    Assignee: Nokia Corporation
    Inventor: Panu Marten Jesper Johansson
  • Patent number: 8937641
    Abstract: 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: Grant
    Filed: March 15, 2010
    Date of Patent: January 20, 2015
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard J. Rikoski
  • Publication number: 20140375763
    Abstract: 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: Application
    Filed: June 3, 2014
    Publication date: December 25, 2014
    Applicants: SAMSUNG ELECTRONICS CO., LTD., CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Hong-seok LEE, Hoon SONG, Kang-hee WON, Neil COLLINGS, Daping CHU
  • Publication number: 20140340476
    Abstract: 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: Application
    Filed: October 7, 2013
    Publication date: November 20, 2014
    Applicant: National Central University
    Inventors: Ching-Cherng SUN, Yeh-Wei YU
  • Patent number: 8890931
    Abstract: 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: Grant
    Filed: July 18, 2011
    Date of Patent: November 18, 2014
    Assignee: City University of Hong Kong
    Inventors: Peter Wai Ming Tsang, Kayton Wai Keung Cheung
  • Publication number: 20140327735
    Abstract: 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: Application
    Filed: December 21, 2012
    Publication date: November 6, 2014
    Inventors: Bernard Ruchet, Normand Cyr
  • Publication number: 20140320596
    Abstract: 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: Application
    Filed: April 25, 2013
    Publication date: October 30, 2014
    Inventor: George Allen Qualls
  • Publication number: 20140300696
    Abstract: 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: Application
    Filed: July 20, 2012
    Publication date: October 9, 2014
    Inventors: Aydogan Ozcan, Alon Greenbaum
  • Publication number: 20140300695
    Abstract: A full-parallax acousto-optic/electro-optic holographic video display includes a control layer and a piezo-electric layer, which includes a substrate and an array of anisotropic waveguide elements. Each waveguide element guides light into a single polarization and includes a horizontal grating, which diffracts light horizontally and comprises surface acoustic waves, and vertical grating, which diffracts light vertically and includes an electro-optic phased array. The surface acoustic waves propagate linearly with the guided, polarized light in the waveguide, converting the polarized light into a leaky mode of orthogonal polarized light. The combination of the horizontal and vertical gratings allows the waveguide element to focus light to multiple points and steer it in order to form a holographic image. The horizontal grating may be generated by interdigital acousto-optic transducers and the vertical grating may be controlled by electro-optic transducers.
    Type: Application
    Filed: March 17, 2014
    Publication date: October 9, 2014
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Daniel E. Smalley, V. Michael Bove, JR.
  • Publication number: 20140300694
    Abstract: 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: Application
    Filed: March 14, 2014
    Publication date: October 9, 2014
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Daniel E. Smalley, V. Michael Bove, JR., Quinn Y. J. Smithwick
  • Patent number: 8854424
    Abstract: Systems, methods, and devices that generate and display a multiple view 3-D holographic image (“image”) of a 3-D real or synthetic scene are presented. A capture system can capture or generate as little as a single 2-D image, or a sequence of 2-D images, of a scene and can convert the 2-D visual information to facilitate generating a 3-D scene from various perspectives. Predefined distortion morphing or transition morphing is employed to generate one or more morphing images to reconstruct different perspectives of the scene without having to capture such different perspectives. A sequence of 2-D images, including the morphing images, each representing a respective view of the scene are integrated to form a 3-D integrated image, which can be displayed on a 3-D aerial projection system. The disclosed subject matter can generate and/or maintain disparity information to improve quality of the display of the 3-D integrated image.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 7, 2014
    Assignee: City University of Hong Kong
    Inventor: Peter Wai Ming Tsang
  • Patent number: 8854423
    Abstract: A multiplanar volumetric three-dimensional display apparatus is disclosed. In one embodiment, the apparatus includes a variable lens and an object source. The variable lens is capable of switching its radius of curvature between a number of states, thereby varying its focal power. The object source provides light for the generation of three-dimensional images. Light from the object source is transmitted through the variable lens and focused at an image plane. As the focal power of the variable lens is varied, the location of the image plane is changed. The object source and variable lens are synchronized and refreshed at a sufficient rate such that an observer may perceive light focused at multiple image plane locations simultaneously, thereby creating the appearance of a three-dimensional image. A reflective pointer may be positioned at the image plane locations wherein light from the object source may be reflected by the pointer back through the variable lens and directed to a detector array.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: October 7, 2014
    Inventor: Robert G. Batchko
  • 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
  • Publication number: 20140267598
    Abstract: The invention generally relates to holographic posters and computer controlled systems for communicating information. The invention provides a computer-based holographic poster device that displays holographic images and videos for interacting with interested users via, for example, their motions and gestures or their personal devices such as smartphones. A holographic poster device has a body such as a pedestal supporting a display area (e.g., a few feet above the floor) and is operable to make a holographic image appear in the display area.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 18, 2014
    Applicant: 360Brandvision, Inc.
    Inventors: Sylvio Drouin, Olav Christensen
  • Publication number: 20140267597
    Abstract: An apparatus for generating holograms includes a laser source configured to emit a laser beam with a frequency of v; an acoustic optical modulator configured to generate, from the laser beam, a first beam with a frequency of v1 and a second beam with a frequency of v2; a first beam splitter configured to split the first beam into a first reference beam and a first object beam, the first object beam being led to a sample; a second beam splitter configured to split the second beam into a second reference beam and a second object beam, the second object beam being led to the sample; and a detector configured to detect an image composed of a first fringe, based on the first reference beam and the first object beam, and a second fringe, based on the second reference beam and the second object beam.
    Type: Application
    Filed: December 6, 2013
    Publication date: September 18, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Chung-Chieh YU
  • Patent number: 8817068
    Abstract: The present disclosure relates to a digital hologram display device in which the 0th diffraction component is removed for optimizing the reproduction and replay of three-dimensional hologram video data. The present disclosure suggests a digital hologram image display device including a pattern generator generating holography interference patterns; a spatial light modulator receiving the holography interference patterns from the pattern generator and representing the holography interference patterns; a light source positioning at one side of the spatial light modulator and illuminating a reference beam to the spatial light modulator; an optical device controlling the reference beam to be collimated onto the entire surface of the spatial light modulator; and a diffusion sheet disposed between the light source and the spatial light modulator.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: August 26, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Minsung Yoon, Guensik Lee
  • Patent number: 8817066
    Abstract: A mirror assembly adapted for use in a panoramic imaging system for capturing a panoramic image includes a mirror for optically coupling to a fisheye lens having a first field of view, the mirror configured for reflecting an image of a second field of view through the fisheye lens. A housing has a first end and a second end, the mirror being secured proximate to the first end, and the second end having an engagement portion for securing the mirror assembly to the panoramic imaging system. When the mirror assembly is secured to the panoramic imaging system, the mirror is optically coupled to the fisheye lens and a detector for capturing a first portion of the panoramic image and a second portion of the panoramic image, the first portion of the panoramic image having a portion overlapping the second portion of the panoramic image.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: August 26, 2014
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Gurunandan Krishnan, Shree K. Nayar
  • Publication number: 20140210942
    Abstract: Techniques for fast processing of information represented in digital holograms to facilitate generating and displaying 3-D holographic images representative of a 3-D object scene are presented. A holographic generator component (HGC) can receive or generate information representing a 3-D object scene. In real or near real time, the HGC can back-project a hologram to a virtual 2-D image known as a virtual diffraction plane (VDP); process the VDP to enhance optical properties of the VDP to facilitate enhancing or adjusting the optical properties of the 3-D holographic images when displayed by a display component; and expand the VDP to facilitate generating 3-D holographic images that can represent or recreate the 3-D object scene. The HGC can thereby process digital 3-D holograms of moderate size and display 3-D holographic images generated from the processed 3-D holograms at a desirably fast video rate.
    Type: Application
    Filed: October 23, 2013
    Publication date: July 31, 2014
    Applicant: City University of Hong Kong
    Inventor: Peter Wai Ming Tsang
  • Patent number: 8791985
    Abstract: In-line holography to create images of a specimen, such as one or more particles dispersed in a transparent medium. Analyzing these images with results from light scattering theory yields the particles' sizes with nanometer resolution, their refractive indexes to within one part in a thousand, and their three dimensional positions with nanometer resolution. This procedure can rapidly and directly characterize mechanical, optical and chemical properties of the specimen and its medium.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: July 29, 2014
    Assignee: New York University
    Inventors: David G. Grier, Sang-Hyuk Lee, Fook C. Cheong
  • Patent number: 8786399
    Abstract: A computer implemented method to display an industrial installation, which display may also display information about an event or an alarm in the installation. The method includes displaying an image which appears to the viewer to be a three dimensional holographic image including a view of the industrial installation. The image may also include one or more points in three dimensional space and which point or points are each mapped to a corresponding point or position in the industrial installation. A pointing device for actively indicating position on the image reflecting objects or positions in the installation is also described.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 22, 2014
    Assignee: ABB Research Ltd.
    Inventors: Charlotte Skourup, Siri Breen, Nicolas-Alexander Hall