Having Optical Element Between Object And Recording Medium Patents (Class 359/30)
  • Patent number: 10353189
    Abstract: A phase microscopy system and method are provided in the present disclosure. The system includes: an optical source, configured to generate collimated light; an object arrangement component, configured to provide a mask and a sample; a microscopic imaging component, including a microscope and a sensor, the microscope being configured to project light that passes successively through the mask and the sample into the sensor to capture an image; and a control component, configured to reconstruct phase information of the sample based on the image through both the sample and the mash and a pre-stored reference image of the mask, in which the pre-stored reference image is pre-acquired by the phase microscopy system without providing the sample under a same light condition. With the present disclosure, dynamic phase information of the microscopic sample can be acquired accurately and rapidly with high resolution.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 16, 2019
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Qionghai Dai, Mingjie Zhang, Jiamin Wu
  • Patent number: 10331078
    Abstract: An apparatus for producing a hologram of an object includes a light source that emits an incoherent electromagnetic wave toward the object, and a masking device configured to display a mask, receive the incoherent electromagnetic wave emitted toward the object, mask the received incoherent electromagnetic wave according to the displayed mask, and produce a masked electromagnetic wave. The apparatus also includes an image recording device configured to capture an image of the masked electromagnetic wave, and a processing device configured to convert the image of the masked electromagnetic wave into the hologram of the object. A method for producing a hologram of an object is also described.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: June 25, 2019
    Assignee: CellOptpic, Inc.
    Inventor: Joseph Rosen
  • Patent number: 10317708
    Abstract: The present invention discloses a light-operated adjustable terahertz wave attenuator. The attenuator includes a silicon base-silicon base-vanadium oxide thin film, a laser emitter and a spherical collimating lens, wherein the silicon based-vanadium dioxide thin film is vertical to a terahertz beam direction, the laser emitter is arranged on one side of the silicon based-vanadium dioxide thin film, the laser emitter is connected with the collimator, the laser emitted from the laser emitter is emitted from the collimator and irradiates on a film surface of the silicon based-vanadium oxide thin film, and the spots of the laser irradiating on the film surface of the silicon based-vanadium oxide thin film completely cover the transmitted terahertz wave spots. The present invention further discloses a use method of the light-operated adjustable terahertz wave attenuator.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: June 11, 2019
    Assignee: 38 RESEARCH INSTITUTE, CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
    Inventors: Changlei Wang, Shuai Wu
  • Patent number: 10254713
    Abstract: A holographic image recording method is disclosed, that is realized through utilizing a holographic image fetching and recording device, including the following steps: using an image fetching device to fetch an image of a target object placed on a rotation table rotating at a fixed speed, the image thus obtained is transmitted to a display panel through a connection line; using a light emitting unit to emit coherent light to a first reflector; that reflects the coherent light to light splitter; and the light splitter splits the coherent light along a first light path and a second light path into an object light and a reference light, and transmits them onto a holographic film to interfere with each other, to form a holographic image. A holographic image reconstructing method is also disclosed, to reconstruct and form a 3D holographic image floating above the holographic film.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: April 9, 2019
    Assignee: G.T. GROUP CORP.
    Inventor: Chih-Hsiung Lin
  • Patent number: 9952492
    Abstract: A projection-type display device includes: a plurality of light sources that emit light beams with different colors; a projection unit that projects light beams based on image information among light beams emitted from the plurality of light sources onto a projection screen; and a light source control unit that selectively performs first control or second control as defined herein.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 24, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Daisuke Ito
  • Patent number: 9915919
    Abstract: A microscope, method and computer program for obtaining quantitative phase images by digital holographic microscopy. The microscope includes: a coherent light source (1) and a beam splitter (3) for generating an object beam (Lo) for illuminating a sample, and a reference beam (Lr); an optical system with a main optical path making up a telecentric afocal system, and a reference optical path; and recording means (12) recording a hologram of said sample in the image plane of the optical system. The method includes recording a hologram in the image plane of an optical telecentric afocal system. The computer program is adapted for implementing part of the steps of the method.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: March 13, 2018
    Assignees: UNIVERSITAT DE VALENCIA, UNIVERSIDAD NACIONAL DE COLOMBIA
    Inventors: Emilio Sánchez Ortiga, Manuel Martínez Corral, Ana Doblas Expósito, Genaro Saavedra Tortosa, Jorge Iván García Sucerquia
  • Patent number: 9690255
    Abstract: An apparatus for producing a hologram of an object includes a light source that emits an incoherent electromagnetic wave toward the object, and a masking device configured to display a mask, receive the incoherent electromagnetic wave emitted toward the object, mask the received incoherent electromagnetic wave according to the displayed mask, and produce a masked electromagnetic wave. The apparatus also includes an image recording device configured to capture an image of the masked electromagnetic wave, and a processing device configured to convert the image of the masked electromagnetic wave into the hologram of the object. A method for producing a hologram of an object is also described.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: June 27, 2017
    Assignee: CellOptic, Inc.
    Inventor: Joseph Rosen
  • Patent number: 9620164
    Abstract: Provided is a holographic data storage system characterized by including: a first polarizing beam splitter (PBS), wherein at least either of a first lens module and a second lens module transmits P-polarized light and reflects S-polarized light; a relay lens collecting light passing through the first PBS; a mirror reflecting the light collected through the relay lens back to the relay lens; and a quarter wave plate located between a second PBS beam splitter and the relay lens, converting transmitted linearly polarized light into circularly polarized light, and converting the circularly polarized light into linearly polarized light. By reducing the volume of the relay lens, it is possible to decrease the size of the holographic data storage system, and by decreasing the number of lenses, it is possible to lower manufacturing costs.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: April 11, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Nakyeong Kim, Byounggyo Ahn
  • Publication number: 20150085291
    Abstract: A compact, self-contained holographic and interferometric apparatus and methods for eliminating vibration, including methods for eliminating relative displacement and vibration errors present in object and reference beam paths, are disclosed. The self-contained apparatus (600) includes an illuminated object (302) that scatters light and an objective lens (304) to form an object beam (350). The self-contained apparatus also includes a reference beam forming lens group (308) that forms a reference beam (352) from a portion of the object beam that passes through a pupil plane (306) of the objective lens (304). The object beam and the reference beam are propagated along a shared optical path, which eliminates relative displacement and vibration errors. The self-contained apparatus includes an image plane (316) where the object beam and reference beam are recombined to create an interference pattern, which is detected and analyzed.
    Type: Application
    Filed: January 31, 2013
    Publication date: March 26, 2015
    Inventors: Yuli Vladimirsky, Lev Ryzhikov
  • Patent number: 8964518
    Abstract: A data recording apparatus and method using three dimensional (3D) optical memory and an authentication apparatus and method using 3D optical memory are provided. The data recording apparatus includes a recording excitation light splitting unit, a condition storage unit, and a data recording unit. The recording excitation light splitting unit splits recording excitation light into first split light and second split light. The condition storage unit stores recording conditions including information about the waveforms, wavelengths and phases of the split light and information about an arrangement of reflection mirrors configured to reflect the split light. The data recording unit records storage data by making the split light incident on the 3D optical memory through the reflection mirrors under the recording conditions.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: February 24, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: CheolYong Park
  • Publication number: 20140347714
    Abstract: A method and apparatus for generating coherent light, and a display apparatus using coherent light are provided. A wide-angle coherent light generation apparatus may focus parallel light onto a focal point, and may generate coherent light at a wide angle, using an optical device.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Kyung NAM, Ho Cheon WEY, Seok LEE
  • Publication number: 20140320942
    Abstract: An apparatus for producing a hologram includes a collimation lens configured to receive incoherent light emitted from an object; a spatial light modulator (SLM) that includes at least one diffractive lens which is configured to receive the incoherent light from the collimation lens and split the incoherent light into two beams that interfere with each other; and a camera configured to record the interference pattern of the two beams to create a hologram, wherein a ratio between a distance from the SLM to the camera and a focal length of the diffractive lens is greater than 1.
    Type: Application
    Filed: December 7, 2012
    Publication date: October 30, 2014
    Applicant: CELLOPTIC, INC.
    Inventors: Joseph Rosen, Gary Brooker, Nisan Siegel
  • Patent number: 8861808
    Abstract: The disclosure relates to a method for recording a fingerprint, with authenticity identification, using a fingerprint recording device which is connected to a data processing instrument and has a prism body with a contact face, an illumination unit for illuminating a finger disposed on the contact face, and a first camera sensor for recording a fingerprint image.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: October 14, 2014
    Assignee: DERMALOG Identification Systems GmbH
    Inventors: Axel Kulcke, Clarissa Hengfoss, Günther Mull
  • 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: 20140285862
    Abstract: An illumination unit is provided including a coherent light source; a projection optical element which focuses a light beam emitted from the coherent light source onto a focal plane; and a holographic optical element interposed between the coherent light source and the projection optical element, and having an interference pattern formed thereon. The holographic optical element diffracts the light beam emitted from the coherent light source and emits the diffracted light to the projection optical element. Here, the interference pattern on the holographic optical element may have information that diffracts the light beam and thereby cancels a diffraction of the light beam due to an aberration of the projection optical element.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 25, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hoon SONG, Gee-young SUNG, Kang-hee WON, Hong-seok LEE
  • Patent number: 8824033
    Abstract: A color photographic hologram system is provided. The reference light wave is incident to the film at a fixed reference beam angle. By adjusting an included angle between the object light wave corresponding to respective monochromatic component images and the reference light wave, the reference light wave and the object light wave are interfered with each other to result in a plurality of interference fringes on the film. When a white light is projected on the film, the reconstructed image shows the color effect.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: September 2, 2014
    Assignee: E-Lon Optronics Co., Ltd.
    Inventor: Ming Tang Yao
  • Publication number: 20140240807
    Abstract: The present invention provides a digital hologram recording system and a numerical reconstruction method for a hologram, which are used for capturing an image of an object and recording it as a holographic data. Said system comprises: signal light, formed after irradiating the object with a light source; an image detector, for recording interference fringes of the signal light; and a light pipe, arranged in a path of the signal light and located between the object and the image detector, wherein the light pipe has a reflection surface, and a part of the signal light enters the image detector after reflected by the reflection surface of the light pipe. The present invention can make the collected signal equivalent to several times of the pixel counts of the image detector, thereby able to break through the spatial bandwidth limitation and shortening the amount of time required to measure the hologram.
    Type: Application
    Filed: January 13, 2014
    Publication date: August 28, 2014
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Yeh-Wei YU, Ching-Cherng SUN
  • Patent number: 8817349
    Abstract: A photographic hologram system is provided. The use of an image slicing process and/or the arrangement of half-cylindrical lens in the optical path of an optical light wave and upstream of the film is effective to reduce the times of multiple exposures of the film. As a consequence, the brightness of the reconstructed image is enhanced.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 26, 2014
    Assignee: E-Lon Optronics Co., Ltd.
    Inventor: Ming Tang Yao
  • Patent number: 8804186
    Abstract: An automated lenticular photographic system includes an interface that permits a user to upload image files and image processing and printing equipment that is in communication with the interface for receiving the uploaded image files and processing the uploaded image files to create an interlaced print image file that is used to produce an interlaced print sheet containing interlaced print images. A pair of registration marks is formed on the interlaced print sheet outside of borders of the interlaced print images. The system also includes a processing station where the interlaced print sheet is aligned with a lenticular lens sheet with a registration system that detects whether the lenticular lens sheet is off-centered and skewed relative to the interlaced print sheet. The system also includes means for controllably adjusting the position of the lenticular lens sheet relative to the interlaced print sheet until proper registration between the lenticular lens sheet and the interlaced print sheet is achieved.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: August 12, 2014
    Assignee: Tracer Imaging LLC
    Inventors: Stephen S. Daniell, Steven M. Spiro, David Whelan, James Anderson, Daniel L. Lau
  • Publication number: 20140168734
    Abstract: Systems and methods for creating an autostereoscopic display include a holographic optical element (HOE) recorded using coherent light divided into diverging reference and object beams that illuminate the HOE from opposite sides. The object beam passes through first and second diffusers with one diffuser being a directional diffuser to more uniformly illuminate the HOE. Optic elements may be used to more closely match beam diameters and/or profiles of the recording wavelengths. Baffles may be positioned on opposite sides of the HOE with openings aligned proximate the reference beam and object beam paths, respectively, to reduce stray reflections and provide ambient air flow attenuation or damping. One or more edges of the HOE are masked to reduce or prevent stray light from entering and reflecting within the HOE during recording.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 19, 2014
    Applicant: Absolute Imaging LLC
    Inventors: Mark L. DELL'EVA, Hans Ingmar BJELKHAGEN
  • Patent number: 8711211
    Abstract: A microscope has a light source for generating a light beam having a wavelength, ?, and beam-forming optics configured for receiving the light beam and generating a Bessel-like beam that is directed into a sample. The beam-forming optics include an excitation objective having an axis oriented in a first direction. Imaging optics are configured for receiving light from a position within the sample that is illuminated by the Bessel-like beam and for imaging the received light on a detector. The imaging optics include a detection objective having an axis oriented in a second direction that is non-parallel to the first direction. A detector is configured for detecting signal light received by the imaging optics, and an aperture mask is positioned.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: April 29, 2014
    Assignee: Howard Hughes Medical Institute
    Inventor: Robert E. Betzig
  • Patent number: 8696131
    Abstract: A polarization element includes: a substrate; and a plurality of grid sections arranged on the substrate, wherein the grid sections each have protruding sections and recessed sections alternately arranged in a longitudinal direction of the grid sections at a pitch shorter than a wavelength of incident light, in the plurality of grid sections, the arrangement pitch P of the protruding sections is the same, and a proportion (D=L/P) of a length L of the protruding section to the arrangement pitch P of the protruding sections is the same, and a height of the protruding sections is different between the grid sections adjacent to each other.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: April 15, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Daisuke Sawaki
  • Patent number: 8699111
    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 23, 2009
    Date of Patent: April 15, 2014
    Inventors: Robert F. Dillon, Neil H. K. Judell, Timothy I. Fillion, Gurpreet Singh, Nathan E. Wallace
  • Publication number: 20140078566
    Abstract: An apparatus and method to produce a hologram of a cross-section of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the object. The electromagnetic radiation assembly is further configured to diffract the received electromagnetic radiation and transmit a diffracted electromagnetic radiation. An image capture assembly is configured to capture an image of the diffracted electromagnetic radiation and produce the hologram of the cross-section of the object from the captured image. The hologram of the cross-section includes information regarding a single cross-section of the object.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 20, 2014
    Inventor: Joseph ROSEN
  • Publication number: 20140055830
    Abstract: A phase mask includes a phase modulation layer that modulates a phase of different portions of incident light, differently, such that a different optical phase delay, in a range between 0 and 2? is imparted to different portions of the incident light. A hologram recording apparatus includes a light source; a signal beam optical system that divides a beam emitted from the light source into a reference beam and a signal beam, modulates the signal beam according to hologram pixel information, and radiates the signal beam onto a hologram recording medium. The signal beam optical system includes the phase mask. The hologram recording apparatus also includes a reference beam optical system that radiates the reference beam onto the hologram recording medium.
    Type: Application
    Filed: August 27, 2013
    Publication date: February 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-seok PYUN, Alexander MOROZOV, Chil-sung CHOI
  • Patent number: 8634119
    Abstract: The present invention provides systems of recording holograms that reduce the writing time, increase the diffraction efficiency, improve the resolution, or restitute color. These systems are well suited for use with an updateable 3D holographic display using integral holography and photorefractive polymer.
    Type: Grant
    Filed: March 6, 2011
    Date of Patent: January 21, 2014
    Assignee: TIPD, LLC
    Inventors: Arkady Bablumyan, Pierre-Alexandre Jean Blanche, Nasser N. Peyghambarian
  • Publication number: 20130335796
    Abstract: An apparatus and method to produce a hologram of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the object. The electromagnetic radiation assembly is further configured to diffract the received electromagnetic radiation and transmit a diffracted electromagnetic radiation. An image capture assembly is configured to capture an image of the diffracted electromagnetic radiation and produce the hologram of the object from the captured image.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 19, 2013
    Inventors: Joseph ROSEN, Gary BROOKER
  • Publication number: 20130293697
    Abstract: A manufacturing method of an optical element applied to a miniature microscope comprises the steps of: emitting a signal light and a reference light to an optical material; and forming a plurality of gratings on the optical material by interfering the signal light and the reference light. A miniature microscope is also disclosed.
    Type: Application
    Filed: April 29, 2013
    Publication date: November 7, 2013
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Ching-Cherng SUN, Yeh-Wei YU, Chih-Yuan CHENG
  • Patent number: 8514472
    Abstract: The present invention relates to a reference beam coupler for an apparatus for reading from and/or writing to holographic storage media, to a multiplexing scheme using the reference beam coupler, and to an apparatus for reading from and/or writing to holographic storage media using such reference beam coupler or multiplexing scheme. According to the invention, the reference beam coupler has: a substrate; one or more optical fibers passing through the substrate for coupling one or more reference beams; and a reflective area on the substrate for reflecting an object beam, which serves as a Fourier filter for the object beam.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: August 20, 2013
    Assignee: Thomson Licensing
    Inventor: Joachim Knittel
  • Publication number: 20130201446
    Abstract: A substrate includes a diffracting structure providing a hologram which encodes one or more holographic images. Every image of the one or more holographic images has a holographic location at either a finite or substantially infinite effective optical distance. The hologram is to be used as an ophthalmic eye chart or an eye exercise device or to provide a scale for measuring distances.
    Type: Application
    Filed: May 19, 2011
    Publication date: August 8, 2013
    Inventors: Simon Richard Geoffrey Hall, Richard Frederick Stevens
  • Publication number: 20130003151
    Abstract: A method of recording a holographic record is described. According to this method, a holographic recording medium is exposed to a desired pattern, shape, or image from a coherent light source emitting light at one or more wavelengths to which the holographic recording medium is sensitive. In this method, light having the desired pattern, shape, or image to which the holographic recording medium is exposed is diffracted by a spatially homogeneous optical diffraction element so that the holographic recording medium is exposed to a plurality of interfering light beams, thereby forming a holographic record in the holographic recording medium. Holographic recording articles are described that include a holographic recording medium and a spatially homogeneous optical diffraction element.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 3, 2013
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Michael T. Takemori, Mark A. Cheverton, Andrew A. Burns, Sumeet Jain
  • Publication number: 20120281197
    Abstract: Disclosed are apparatuses, methods, and lithographic systems for holographic mask inspection. A holographic mask inspection system (300, 600, 700) includes an illumination source (330), a spatial filter (350), and an image sensor (380). The illumination source being configured to illuminate a radiation beam (331) onto a target portion of a mask (310). The spatial filter (350) being arranged in a Fourier transform pupil plane of an optical system (390, 610, 710), where the spatial filter receives at least a portion of a reflected radiation beam (311) from the target portion of the mask. The optical system being arranged to combine (360, 660, 740) the portion of the reflected radiation beam (311) with a reference radiation beam (361, 331) to generate a combined radiation beam. Further, the image sensor (380) being configured to capture holographic image of the combined radiation beam. The image may contain one or more mask defects.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 8, 2012
    Applicants: ASML NETHERLANDS B.V., ASML HOLDINGS N.V.
    Inventors: Robert Albert Tharaldsen, Arie Jeffrey Den Boef, Eric Brian Catey, Yevgeniy Konstantinovich Shmarev, Richard David Jacobs
  • Patent number: 8270051
    Abstract: A method of recording holographic information includes recording a hologram mark and a homogeneous mark in a holographic data storage medium with a volume to alternatively locate the hologram mark and the homogeneous mark. The hologram mark has a varied refractive index distribution due to constructive/destructive interferences between two light beams and indicates information, while the homogeneous mark has a more uniform refractive index distribution than the hologram mark.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Taek-seong Jeong, Tae-kyoung Kim, Jae-cheol Bae
  • Patent number: 8264756
    Abstract: An apparatus for recording holograms on an optical medium, in particular on an optically addressable spatial light modulation device is disclosed. For this purpose, the apparatus comprises an illumination device for emitting light, an optical medium, an image source having at least one modulation element, and an arrangement of microlenses. In this case, the arrangement of microlenses is arranged at a distance from the optical medium in such a way that the image focal points of the microlenses lie on the optical medium, such that the hologram can be generated on the optical medium.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 11, 2012
    Assignee: Seereal Technologies S.A.
    Inventors: Jean-Christophe Olaya, Grigory Lazarev
  • Patent number: 8220939
    Abstract: A screen device of the present invention has a light collecting element array including a plurality of light collecting elements that collect incident light from a projector and a back surface sheet. The back surface sheet includes a first electrode plate, a second electrode plate, a photoconductive layer disposed between the first electrode plate and the second electrode plate, and an image recording layer disposed between the first electrode plate and the photoconductive layer. At the back surface sheet, a light reflecting portion is formed at a light collecting region to which the light collected by the light collecting elements is irradiated, and a light absorbing portion is formed at a non-light collecting region to which the light collected by the light collecting elements is not irradiated.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 17, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Naoki Hiji, Takeo Kakinuma, Chikara Manabe, Tadayoshi Ozaki
  • Patent number: 8208186
    Abstract: An optical reproducing method. A diffracted light is generated by irradiating a reference light onto a hologram. A combined light is generated by applying a direct-current component formed by a polarized light having a third polarization component with a first polarization plane having a polarization direction orthogonal to the diffracted light and having the same phase as the diffracted light, and a fourth polarization component with a second polarization plane having an opposite phase to the diffracted light, onto the diffracted light. The combined light is separated into a fifth polarization component including a first polarization component and the third polarization component, and a sixth polarization component including a second polarization component and the fourth polarization component. A first reproduced image is reproduced from the separated fifth polarization component, and a second reproduced image is reproduced from the separated sixth polarization component.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: June 26, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shin Yasuda, Katsunori Kawano
  • Patent number: 8199388
    Abstract: According to one aspect and example, a holographic recording system includes a light source, an object for modulating an object beam from the light source, and a relay system adapted to magnify (positive or negative) the modulated beam (e.g., an image of the object) to an output image. The object may include an SLM operable to modulate the object beam with an information layer comprising a plurality of data pages. The output image is directed to the holographic storage medium, where a reference beam is also directed, to record the resulting interference pattern. Additionally, the relay system converges the output image to an output Fourier plane, which may be disposed within the holographic storage medium. A filter may be placed at an intermediate Fourier plane located prior to the output Fourier plane, and a phase mask may be placed at the position of the output image.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: June 12, 2012
    Assignee: InPhase Technologies, Inc.
    Inventors: Ernest Y. Chuang, Kevin R. Curtis, Jan Hoogland, Yunping Yang
  • Publication number: 20120140182
    Abstract: An autostereoscopic projection arrangement, comprising at least one projector and at least one filter array, in which arrangement bits of partial information from views of a scene or object are projected by the projector/projectors onto a projection screen, where these bits of partial information are rendered on image rendering elements and, having passed one or several of the filter arrays are made visible to at least one observer, and in which, as regards the propagation direction of the bits of partial information, the image rendering elements correspond with correlated filter elements in such a way that an observer will see predominantly bits of partial information from a first selection of views with one eye and predominantly bits of partial information from a second selection of views with the other eye, and thus will have a spatial impression.
    Type: Application
    Filed: February 6, 2012
    Publication date: June 7, 2012
    Inventors: Ingo Relke, Stephan Otte, Markus Klippstein, Thomas Bruggert, Bernd Riemann
  • Publication number: 20120127548
    Abstract: A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage device or system. Further provided are articles comprising holographic storage media for recording or for reading recorded data using such devices or systems.
    Type: Application
    Filed: January 31, 2012
    Publication date: May 24, 2012
    Applicant: HITACHI, LTD.
    Inventors: Kevin R. Curtis, Ken E. Anderson, Friso Schlottau, Tatsuro Ide, Ken'ichi Shimada, Takeshi Shimano, Harukazu Miyamoto
  • Patent number: 8149487
    Abstract: An optical apparatus includes: a focusing lens that focuses light which is one of recording light being irradiated to an optical recording medium with reference light for recording a hologram and reference light being irradiated to an optical recording medium for reading out a hologram; and a focal position-shifting unit that refracts the light while moving in accordance with a moving speed of the optical recording medium, so as to shift a focal position of the light in the optical recording medium a distance in a thickness direction of the optical recording medium.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: April 3, 2012
    Assignee: Fuji Xerox Co., Ltd
    Inventors: Makoto Furuki, Kazuhiro Hayashi, Jiro Minabe, Katsunori Kawano, Yasuhiro Ogasawara, Shin Yasuda, Koichi Haga, Hisae Yoshizawa
  • Patent number: 8134765
    Abstract: A hologram recording and reconstruction apparatus records and reconstructs a hologram in a recording layer of a holographic recording medium using a signal light beam and a reference light beam. The apparatus includes an objective lens, a spatial light modulator on which a reference light beam pattern for generating a reference light beam is displayed, a temperature sensor for detecting the temperature of the holographic recording medium, and a control unit for controlling the spatial light modulator to reduce a reference light beam pattern so that the reference light beam passes through the more inner portion of the objective lens or enlarge the reference light beam pattern so that the reference light beam passes through the more outer portion of the objective lens in accordance with the temperature.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: March 13, 2012
    Assignee: Sony Corporation
    Inventors: Mitsuru Toishi, Tomiji Tanaka, Atsushi Fukumoto, Kenjiro Watanabe
  • Patent number: 8130430
    Abstract: A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage device or system. Further provided are articles comprising holographic storage media for recording or for reading recorded data using such devices or systems.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: March 6, 2012
    Assignees: Inphase Technologies, Inc., Hitachi, Ltd.
    Inventors: Kevin R. Curtis, Ken E. Anderson, Friso Schlottau, Tatsuro Ide, Ken'ichi Shimada, Takeshi Shimano, Harukazu Miyamoto
  • Patent number: 8129703
    Abstract: A conoscopic holographic system and a method for imaging a scene characterized by a surface having a three-dimensional shape. The system utilizes an optical source, which illuminates the scene with substantially linear distributions of light, and independent register of a plurality of elementary conoscopic holograms in the image plane. Each elementary conoscopic hologram represents the imaging of a single emitting point of the illuminated scene. The optical source is translated relative to the scene to generate a sequence of optical holograms, and a weighted reconstruction of the holograms is performed, in a computer process, at a median plane to devise the three-dimensional shape of the imaged scene.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: March 6, 2012
    Assignee: Optimet, Optical Metrology Ltd.
    Inventor: Gabriel Y. Sirat
  • Patent number: 8125698
    Abstract: Hologram recording devices and techniques can be employed to produce wide field-of-view holograms. A lens can be used to couple an object beam into a holographic recording material without substantially changing the angle of incidence of the object beam. When displayed, images from holograms recorded using this technique can have a field-of-view greater than that of the object beam. One or more aspheric reflective surfaces can be used to couple an object beam into a holographic recording material at relatively steep angles.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 28, 2012
    Assignee: Zebra Imaging, Inc.
    Inventors: Qiang Huang, Michael A. Klug
  • Patent number: 8077366
    Abstract: A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage device or system. Further provided are articles including holographic storage media for recording or for reading recorded data using such devices or systems.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: December 13, 2011
    Assignees: InPhase Technologies, Inc., Hitachi, Ltd.
    Inventors: Kevin R. Curtis, Ken E. Anderson, Friso Schlottau, Tatsuro Ide, Ken'ichi Shimada, Takeshi Shimano, Harukazu Miyamoto
  • Patent number: 8068264
    Abstract: Methods and devices are described for creating and printing holographic stereograms and holographic optical elements using computer rendered images or using computer processed images. Various embodiments of the system may utilize interchangeable band-limited diffusers and reference-beam masking plates.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: November 29, 2011
    Assignee: Zebra Imaging, Inc.
    Inventors: Michael Anthony Klug, Mark Evan Holzbach, Alejandro José Ferdman
  • Patent number: 8049942
    Abstract: A multiplexed holographic recording apparatus records multiplexed holograms in a plurality of recording regions that are formed on a holographic recording medium. In particular, the apparatus first records a predetermined number of multiplexed holograms in each of the recording regions formed in a predetermined range or an overall range of the holographic recording medium through holographic recording performed N times, and then performs the (N+1)th holographic recording in each recording region formed in the predetermined range or the overall range. When n other recording regions (where n=0, 1, 2, . . . ) are superimposed on each recording region formed on the holographic recording medium, a difference in the degree of multiplexing between the recording regions formed in the predetermined range or the overall range of the holographic recording medium does not exceed a predetermined value of n+1.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: November 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Tomoya Sugita, Ken'ichi Kasazumi
  • Patent number: 8009340
    Abstract: An apparatus for producing a hologram of an object includes a light source that emits an incoherent electromagnetic wave toward the object, and a masking device configured to display a mask, receive the incoherent electromagnetic wave emitted toward the object, mask the received incoherent electromagnetic wave according to the displayed mask, and produce a masked electromagnetic wave. The apparatus also includes an image recording device configured to capture an image of the masked electromagnetic wave, and a processing device configured to convert the image of the masked electromagnetic wave into the hologram of the object. A method for producing a hologram of an object is also described.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 30, 2011
    Assignee: Celloptic, Inc.
    Inventor: Joseph Rosen
  • Patent number: 8005314
    Abstract: A high speed, high-resolution flow imaging system is modified to achieve extended depth of field imaging. An optical distortion element is introduced into the flow imaging system. Light from an object, such as a cell, is distorted by the distortion element, such that a point spread function (PSF) of the imaging system is invariant across an extended depth of field. The distorted light is spectrally dispersed, and the dispersed light is used to simultaneously generate a plurality of images. The images are detected, and image processing is used to enhance the detected images by compensating for the distortion, to achieve extended depth of field images of the object. The post image processing preferably involves de-convolution, and requires knowledge of the PSF of the imaging system, as modified by the optical distortion element.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: August 23, 2011
    Assignee: Amnis Corporation
    Inventors: William Ortyn, David Basiji, Keith Frost, Luchuan Liang, Richard Bauer, Brian Hall, David Perry
  • Publication number: 20110134497
    Abstract: [Object] Provided are a hologram generating device and a hologram generating method that allows the generation of a hologram for reproducing an easily observable three-dimensional image without restrictions on object sizes.
    Type: Application
    Filed: June 5, 2009
    Publication date: June 9, 2011
    Applicant: Optware Corporation
    Inventor: Hideyoshi Horimai