Using A Hologram As An Optical Element Patents (Class 359/15)
  • Patent number: 10996385
    Abstract: There is provided a filter for filtering electromagnetic radiation, wherein said filter is arranged to transmit electromagnetic radiation of a first predetermined wavelength and to block transmission of electromagnetic radiation of a second, different predetermined wavelength; said filter comprising a first metamaterial. Optionally, the metamaterial may be formed of a plurality of material elements wherein each material element is at least one-dimensional and the size of the material element along each dimension is no greater than the size of the second predetermined wavelength. The filter comprises a second metamaterial arranged to provide second filtering of electromagnetic radiation.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: May 4, 2021
    Assignee: Lamda Guard Technologies Ltd.
    Inventors: George Palikaras, Themos Kallos
  • Patent number: 10996476
    Abstract: An optical device with reduced see-through diffraction artifacts for Augmented Reality (AR) applications is provided. The device includes a projector configured to generate an image light and a waveguide optically coupled with the projector and configured to guide the image light to an eye-box. The waveguide includes an in-coupling element configured to couple the image light into the waveguide, and an out-coupling element configured to decouple the image light out of the waveguide. The waveguide includes at least one switchable grating configured to: during a virtual-world subframe of a display frame, decouple the image light out of the waveguide via diffraction, and during a real-world subframe of the display frame, transmit a light from a real-world environment to the eye-box with a diffraction efficiency less than a predetermined threshold.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 4, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Andrew Maimone, Oleg Yaroshchuk
  • Patent number: 10989854
    Abstract: The present application relates to a polarization conversion element and an optical isolation device. The present application provides a polarization conversion element capable of converting unpolarized incident light into one polarized light and an optical isolation device with an excellent optical isolation ratio comprising the polarization conversion element. Such an optical isolation device can be applied to various applications such as the field of optical communication or laser optics, the field of security or privacy protection, brightness enhancement of displays, or a use for hiding and covering.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 27, 2021
    Inventors: Seong Min Park, Sang Choll Han, Min Soo Song
  • Patent number: 10983389
    Abstract: The present disclosure generally relates to systems and methods for manufacturing wire grid polarizers for LCDs using interference lithography, which are also useful for generating large-area grating patterns. In one embodiment, a method includes depositing a bottom anti-reflective coating layer over an aluminum coated flat panel display substrate, depositing a photoresist layer over the bottom anti-reflective coating layer, and exposing the photoresist layer with an image from a phase grating mask. The exposure with the phase grating mask is done by imaging the ±1 diffraction orders from the phase grating mask onto the substrate using a half Dyson optical system. A plurality of half Dyson systems are generally used in parallel to pattern fine geometry lines and spaces of a wire grid polarizer for a large area substrate. Each half Dyson system includes a primary mirror, a positive lens and a reticle.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: April 20, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: David Markle, Jang Fung Chen
  • Patent number: 10945607
    Abstract: This invention is to provide a spectroscope that can improve resolution and reduce loss of light intensity and/or distortion of a wave front while enabling detection of the optical spectrum for each of a plurality of polarization components in incident light. The spectroscope is a spectroscope that comprises a first diffraction grating 51 to which at least a transmitted light or a reflected light from an object to be measured enters, which diffracts a first polarization component of the incident light and which transmits a second polarization component that is different from the first polarization component of the incident light without diffraction, and a first light-receiving element 55 that receives a spectrum of the light diffracted by the first diffraction grating 51.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 16, 2021
    Assignee: HORIBA, LTD.
    Inventor: Seichi Sato
  • Patent number: 10943109
    Abstract: An electronic device is provided. The electronic device includes a light emitting unit configured to alternately emit light having a preset pattern to an eye area of a user; an inputter configured to receive a plurality of images which capture an eye area of the user; and a processor configured to detect a user's gaze using a first image that is captured at the time of irradiating a preset first pattern and a second image that is captured at the time of irradiating a preset second pattern, and the processor detects a user's gaze by extracting reflection points of each of the first image and the second image and using remaining reflection points excluding reflection points at a same position from among the extracted reflection points.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 9, 2021
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Kang-won Jeon, Sung-Jea Ko, Tae-young Na, Mun-Cheon Kang, Kwang-Hyun Uhm
  • Patent number: 10938480
    Abstract: A transceiver is disclosed. The transceiver includes a first unit capable of a full-duplex communication using an electromagnetic wave, and a second unit capable of a full-duplex communication using an electromagnetic wave. The first unit includes a transmitter and a receiver arranged in this order at a predetermined interval in a first direction. The second unit includes a receiver and a transmitter arranged in this order at a predetermined interval in the first direction. The second unit is placed adjacent to the first unit in a second direction perpendicular to the first direction.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: March 2, 2021
    Assignee: LENOVO (SINGAPORE) PTE LTD
    Inventors: Hirohide Komiyama, Masayuki Amano, Tabito Miyamoto, Masato Itoh
  • Patent number: 10935214
    Abstract: A light-emitting device includes pixels each including subpixels. Each subpixel includes light-emitting elements that emit respective pieces of light of colors different from each other, and a light-shielding film having openings at respective positions where the openings are opposed to the respective light-emitting elements at predetermined intervals. The openings have respective widths different from each other. The widths of the respective openings in a first direction and a second direction are sized to allow the light-shielding film to block a portion of the pieces of light emitted from the respective light-emitting elements and thereby to cause a 45-degree luminance viewing angle to be different between the first and second directions, and are sized to cause color differences (?u?v?) at a 45-degree chromaticity viewing angle (u?v?) in the first and second directions to be 0.020 or less. The 45-degree luminance viewing angle is expressed in a unit of cd/m2.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 2, 2021
    Assignee: JOLED INC.
    Inventor: Toshihiro Fukuda
  • Patent number: 10914902
    Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a radiation beams before the beam is coupled into an optical fiber or delivered to a workpiece.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 9, 2021
    Assignee: TERADIODE, INC.
    Inventors: Parviz Tayebati, Wang-Long Zhou, Bien Chann, Bryan Lochman
  • Patent number: 10911742
    Abstract: An electronic device includes one or more processors and a display that is flexible. A louvered filter, which can be optionally configured in an electronic device attachment, as a first louvered filter and a second louvered filter, or otherwise, is then disposed along the flexible display. When the flexible display is deformed by one or more bends, the one or more processors can present a first image through a first portion of the louvered filter and a second image through a second portion of the louvered filter to present stereoscopic content without the need of special glasses.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: February 2, 2021
    Assignee: Motorola Mobility LLC
    Inventors: Mark Frederick Valentine, Adrian Gheorghe Manea, Sen Yang
  • Patent number: 10895743
    Abstract: The present invention relates to a display apparatus for superimposing a virtual image into the field of vision of a user of the display apparatus, having spectacles for the user and at least one projection device for producing light rays which are transferred by means of an optical unit of the spectacles into a beam path which produces a virtual image for the user. The optical unit may comprise a ground-glass screen or lens array and a holographic optical imaging unit. The ground-glass screen or lens array and holographic optical imaging unit are arranged in such a way that the light rays produced by the projection device are incident on the holographic optical imaging unit through the ground-glass screen or the lens array and are transferred by the holographic optical imaging unit into the beam path which produces the virtual image for the user.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: January 19, 2021
    Assignee: Hologram Industries Research GmbH
    Inventor: Günther Dausmann
  • Patent number: 10890778
    Abstract: An optical system includes a grating including at least one substrate and a grating structure coupled to the at least one substrate. The grating structure is configured to diffract a first light having an incidence angle within a predetermined range. The optical system also includes a polarizer configured to transmit the first light diffracted by the grating structure and block a second light reflected by a surface of the at least one substrate.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: January 12, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Yun-Han Lee, Mengfei Wang, Junren Wang, Lu Lu, Robin Sharma, Gregory Olegovic Andreev, Garam Young, Andrew John Ouderkirk, Babak Amirsolaimani, Fenglin Peng, Barry David Silverstein
  • Patent number: 10877280
    Abstract: A near-eye display includes a light source assembly, a first waveguide, an output waveguide, and a controller. The light source assembly emits image light including light within a first band and a second band. The first waveguide receives the image light, expands the received image light in at least one dimension, and outputs an image light. The output waveguide includes an output area and a plurality of input areas. Each input area receives the image light from the first waveguide. The output waveguide includes a holographic Bragg grating and the output waveguide expands the image light at least along two dimensions to form an expanded image light, and outputs the expanded image light toward an eyebox. The controller controls the scanning of the light source assembly and the first waveguide.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: December 29, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Hee Yoon Lee, Wanli Chi, Pasi Saarikko
  • Patent number: 10878209
    Abstract: A camera is provided that comprises an image sensor for detecting image data from a detection zone, an illumination unit having at least one light source for illuminating the detection zone, and a front screen. In this respect, a lateral deflection element is provided that is associated with the light source, that is arranged in the camera protected by the front screen, and that has a diffusely scattering surface or a reflective surface to generate a diffuse illumination or a dark field illumination in the detection zone.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: December 29, 2020
    Assignee: SICK AG
    Inventors: Florian Schneider, Thomas Pfrengle
  • Patent number: 10871601
    Abstract: Transmission and reflection mode VHOEs are designed and fabricated for use in imaging and other applications. These VHOE provide high diffraction efficiency with minimal chromatic aberrations and astigmatism across the bandwidth. The lens provides optical power within the bandwidth centered relative to several wavelengths to magnify (focus or collimate) input light and is transparent for the rest of the image spectrum. In transmission mode, two VHOE are fabricated in such a way as to introduce compensating adjustments that minimize the astigmatism and chromatic aberrations introduced by the bandwidth of the input light. Two VHOEs are required to provide an on-axis imaging system to magnify light to form an image and reduce the chromatic aberrations across the bandwidth and reduce the astigmatism while maintaining high diffraction efficiency (DE).
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 22, 2020
    Assignee: TIPD, LLC
    Inventors: Arkady Bablumyan, Lloyd J. LaComb, Jr., Nasser N. Peyghambarian
  • Patent number: 10871649
    Abstract: An apparatus is disclosed for producing an optical display comprising an optical waveguide including a first diffractive part arranged to receive display light and to diffract the display light into an angle for guided propagation along the optical waveguide. A second diffractive part of the waveguide is optically coupled to the first diffractive part by the optical waveguide and is arranged to receive and to diffract light from the first diffractive part to an angle for output from the optical waveguide. Those external surfaces of the waveguide against which guided light reflects internally are coated with a meta-material having a refractive index of value less than 1.0 (one).
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: December 22, 2020
    Assignee: BAE SYSTEMS plc
    Inventor: Michael David Simmonds
  • Patent number: 10859833
    Abstract: A waveguide image combiner is used to transmit a monochrome or full-color image in an augmented reality display. The combiner uses multiple pairs of overlapping incoupling and outcoupling VHOEs to expand the horizontal FOV and a Y expander to expand the vertical FOV. This suitably provides an expanded horizontal and vertical FOV that offers a diagonal FOV?50°, a horizontal FOV?40 and a vertical FOV?25°. The combiner also delivers a large horizontal eye box up to 20 mm and a vertical eye box of 10 mm while maintaining high light efficiency of the real scene (e.g. >80%). The system is able to use a light engine based on broadband (10 nm????30 nm) LEDs and maintain a large horizontal field of view and high transmission of the real imagery. The approach resolves issues with current embodiments including astigmatism, image overlap, color balance, and small light engine pupils leading to reduced eye boxes.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: December 8, 2020
    Assignee: TIPD, LLC
    Inventor: Arkady Bablumyan
  • Patent number: 10852559
    Abstract: Provided are a light guide plate, a backlight unit, and a holographic display apparatus including the backlight unit. The backlight unit includes a light source and a light guide plate including two or more layers configured to guide light from the light source, wherein the two or more layers are configured to control a ratio of light transmitted therethrough to light reflected thereby.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chilsung Choi, Hoon Song, Jungkwuen An, Sunil Kim, Sunghoon Lee, Hongseok Lee
  • Patent number: 10845761
    Abstract: Examples are disclosed that relate to holographic near-eye display systems. One example provides a near-eye display device, comprising a diverging light source, an image producing dynamic digital hologram panel configured to receive light from the diverging light source and form an image. The near-eye display device also includes and a combiner comprising a holographic optical element positioned to receive light from the dynamic digital hologram panel and to redirect the light toward an eyebox, the holographic optical element being positioned between the eyebox and a view of an external environment to combine a view of the image formed by the dynamic digital hologram panel and the view of the external environment.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: November 24, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Andrew Maimone, Andreas Georgiou, Joel Steven Kollin
  • Patent number: 10845525
    Abstract: An imaging light guide for conveying a virtual image has a waveguide that conveys image-bearing light, formed as a flat plate having a front and a back surface and having an in-coupling diffractive optic on the front surface with a first grating vector diffracting an image-bearing light beam into the waveguide and directing diffracted light. An out-coupling diffractive optic is formed on the front or back surface as a diffractive array and with a first subset of diffractive elements, each having a second grating vector k2 offset from the first grating vector by about +60 degrees and a second subset of diffractive elements, each having a third grating vector k3 offset from the first grating vector by about ?60 degrees. Each diffractive element of the first subset is immediately adjacent to at least one diffractive element of the second subset and the diffractive elements are mutually non-overlapping.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 24, 2020
    Assignee: Vuzix Corporation
    Inventors: Robert J. Schultz, Paul J. Travers
  • Patent number: 10838121
    Abstract: A three-dimensional diffraction grating is generated by selective deposition and/or selective etching. The three-dimensional diffraction grating includes a substrate and a plurality of structures located at different positions on the substrate. The structures have different materials. Edges of at least some of the structures are aligned. The three-dimensional diffraction grating includes different materials and aligned edges in all three dimensions. With the different materials and aligned edges, the three-dimensional diffraction gratings is configured to eliminate display artifacts, such as ghost, rainbow, etc.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 17, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Nihar Ranjan Mohanty, Giuseppe Calafiore, Matthew E. Colburn, Austin Lane, Matthieu Charles Raoul Leibovici
  • Patent number: 10837617
    Abstract: The invention enables a desired projection pattern on a surface to be illuminated, and enables a projection position and/or a projection orientation of the projection pattern to be changed. A laser beam is shaped into a parallel light, and an incident surface of a diffraction optical element recording a hologram image is irradiated with the parallel light. A projection pattern of an arrow oriented in a predetermined direction is projected as a hologram reconstructed image on a surface to be illuminated. An optical-element drive unit rotates the diffraction optical element about a rotation axis in a rotation plane orthogonal to an optical axis of a parallel incident light. By means of the rotation, a geometric positional relationship of the diffraction optical element with respect to the surface to be illuminated is changed, whereby an orientation of the arrow projection pattern on the surface can be changed.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: November 17, 2020
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Makio Kurashige, Shumpei Nishio
  • Patent number: 10818215
    Abstract: The present disclosure provides a display panel and a display apparatus. The display panel includes: light-emitting elements which include a first light-emitting element that emits light of a first color having a wavelength ranging from ?1 to ?2, a second light-emitting element that emits light of a second color having a wavelength ranging from ?3 to ?4, and a third light-emitting element that emits light of a third color having a wavelength ranging from ?5 to ?6; and first to third capping layers respectively covering light-exiting sides of the first to third light-emitting elements. At least one of the first to third capping layers contains an ultraviolet light absorber that can absorb light having a wavelength ranging from 380 nm to 410 nm with an absorption rate greater than or equal to 20%.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: October 27, 2020
    Assignee: WuHan TianMa Micro-Electronics Co., Ltd.
    Inventors: Wei Gao, Ping An, Lei Zhang, Jinghua Niu, Wenpeng Dai, Mingzhi Dai
  • Patent number: 10807196
    Abstract: A method for manufacturing a laser processed product including a laser processed part is performed by using a laser oscillation section, a beam splitting section and an imaging section. The manufacturing method includes: forming an irradiation mark including an irradiation pattern in a reference irradiation surface by using the laser oscillation section and the beam splitting section, the irradiation pattern including a plurality of irradiation spots; obtaining an image of the irradiation mark via the imaging section; determining a representative position based on positions of the plurality of irradiation spots in the image; determining a deviation amount of deviation of the representative position from a target position; and forming the laser processed part with a irradiation position corrected based on the deviation amount.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: October 20, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Tsukui, Masaki Koike, Junya Shimotamari, Hideki Yamauchi
  • Patent number: 10802440
    Abstract: A printing device (106) includes a dynamic holography printing application configured to generate a laser control signal and a LCOS-SLM (Liquid Crystal on Silicon Spatial Light Modulator) control signal based on a two-dimensional content corresponding to a lithography mask. A laser source (110) generates a plurality of incident laser beams based on the laser control signal. A LCOS-SLM (112) modulates the plurality of incident laser beams based on the LCOS-SLM control signal, generates a plurality of holographic wavefronts (214,216), each holographic wavefront forming at least one corresponding focal point. The LCOS-SLM generates a plurality of distinct focused light field regions (506,508,510) at interference points of focal points of the plurality of holographic wavefronts. The plurality of distinct focused light field regions correspond to the two-dimensional content.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 13, 2020
    Assignee: Dualitas Ltd.
    Inventor: Brian Mullins
  • Patent number: 10802442
    Abstract: A holographic display device is provided, comprising a spatial light modulator. The spatial light modulator is configured to load at least one composite hologram, and one of the at least one composite hologram is formed by superposing N sub-holograms. The holographic display device further comprises a light source arranged on a light incoming side of the spatial light modulator. The light source is configured to provide readout light to the spatial light modulator. The light source comprises M light source components. The direction of propagation of emergent light of each of at least two light source components among the M light source components is identical to the direction of propagation of a reference wave corresponding to one of the N sub-holograms, wherein M?N?2, and M and N are positive integers.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: October 13, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hao Chen
  • Patent number: 10802190
    Abstract: Systems, devices, and methods for making and using curved holographic optical elements (“HOEs”) are described. A hologram to apply a first optical power to playback light may be embedded in an internal volume of a curved lens, where the curved lens has a first curvature to apply a second optical power to the playback light and a second curvature opposite the first curvature to define the internal volume of the curved lens. The first optical power may be equal in magnitude and opposite in sign to the second optical power. The curved HOEs described herein are particularly well-suited for use when integrated with a curved eyeglass lens to form the transparent combiner of a virtual retina display.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: October 13, 2020
    Assignee: Covestro LLC
    Inventors: Stefan Alexander, Vance R. Morrison, Thomas Mahon
  • Patent number: 10788610
    Abstract: A method for design and fabrication of holographic optical elements for a compact holographic sight is proposed. The method includes use of ray-trace software to design holographic elements having optical power using an intermediate hologram with parameters obtained through minimization of the merit function defining image quality.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 29, 2020
    Assignee: Luminit LLC
    Inventors: Dmitry Voloschenko, Engin B. Arik, Fedor Dimov, Kevin Yu, Khin Swe Yin, Neven Rakuljic
  • Patent number: 10780927
    Abstract: Spoiler apparatus for use with vehicles are disclosed. A disclosed spoiler for a vehicle includes a sensor operatively couple to the vehicle. The spoiler also includes a body supporting the sensor and including an aperture positioned thereon. The body is coupled to an exterior vehicle surface near a lamp of the vehicle, separate from the spoiler, such that the lamp is exposed via the aperture.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: September 22, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Varun Jonathan Prabhakar
  • Patent number: 10775626
    Abstract: A head worn display device is disclosed. Each of two display assemblies includes a first waveguide with a field of view and a second waveguide with a field of view, where the fields of view are overlapped to generate a combined field of view for each of the display assemblies. Each of the display assemblies further includes a first collimator and a second collimator, where each collimator is configured to direct illumination through the waveguide stack along a single axis, and where each collimator is rotated a select angle to offset the combined field of view to merge collimator pupils and generate a seamless total field of view for each of the display assemblies. Each of the display assemblies are rotated a select angle to offset the respective total fields of view along the single axis and generate a seamless wide field of view for the head worn display device.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 15, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Eric P. Stratton, Wyatt Lee Hendrick, Robert D. Brown
  • Patent number: 10766404
    Abstract: A lighting device for vehicles having a housing in which is arranged a hologram light fixture that has a light source unit and has an optical unit with a hologram element for generating a predetermined lighting function. An auxiliary element is associated with the light source unit, by means of which light that is emitted by the light source unit can be deflected in the direction of the hologram element. In this design, the light source unit and/or the auxiliary element is arranged in the region of a side of the hologram element or in the region of a lateral extension of an edge of the hologram element extending in the direction of a central axis of the hologram element.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: September 8, 2020
    Assignee: Hella GmbH & Co. KGaA
    Inventor: Martin Muegge
  • Patent number: 10768630
    Abstract: Systems, methods, and computer-readable media are disclosed for initiating a response action based at least in part on a human imperceptible signal. An emitting device may emit a human imperceptible signal. The signal may be received by a receiving device. The receiving device may analyze the signal to obtain digital information contained therein. The receiving device may then initiate a response action based at least in part on the digital information. Further, the emitting device may dynamically modify the human imperceptible signal based on a change to a characteristic in an environment into which the human imperceptible signal is emitted.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: September 8, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Eric V. Kline, Pitipong J. Lin, Sarbajit K. Rakshit
  • Patent number: 10754168
    Abstract: An illumination device has a coherent light source, an optical device that diffuses the plurality of coherent light beams and illuminates a predetermined illumination area, and a timing control unit that individually controls incident timing of the plurality of coherent light beams to the optical device or illumination timing of the illumination area, wherein the optical device has a plurality of diffusion regions, the diffusion regions being provided corresponding to the plurality of coherent light beams, the plurality of diffusion regions illuminate the illumination range by diffusion of incident coherent light beams, the plurality of diffusion regions have a plurality of element diffusion regions, the plurality of element diffusion regions illuminate partial regions in the illumination area by diffusion of incident coherent light beams, and at least parts of the partial regions illuminated by the plurality of element diffusion regions are different from one another.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: August 25, 2020
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Makio Kurashige, Kaori Nakatsugawa, Shumpei Nishio
  • Patent number: 10732351
    Abstract: A manufacturing system performs a deposition of an etch-compatible film over a substrate. The etch-compatible film includes a first surface and a second surface opposite to the first surface. The manufacturing system performs a partial removal of the etch-compatible film to create a surface profile on the first surface with a plurality of depths relative to the substrate. The manufacturing system performs a deposition of a second material over the profile created in the etch-compatible film. The manufacturing system performs a planarization of the second material to obtain a plurality of etch heights of the second material in accordance with the plurality of depths in the profile created in the etch-compatible film. The manufacturing system performs a lithographic patterning of a photoresist deposited over the planarized second material to obtain the plurality of etch heights and one or more duty cycles in the second material.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 4, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Matthew E. Colburn, Giuseppe Calafiore, Matthieu Charles Raoul Leibovici, Nihar Ranjan Mohanty
  • Patent number: 10725291
    Abstract: A waveguide is provided for conveying image light. The waveguide includes an input port for receiving a first beam of image light carrying an image in a wavelength band. A first diffraction grating of the waveguide includes a plurality of volume Bragg gratings (VBGs) configured to expand the first beam along a first axis and to redirect the first beam towards a second diffraction grating of the waveguide. The second diffraction grating includes a plurality of VBGs configured to receive the first beam from the first diffraction grating and to out-couple different portions of the first wavelength band of the first beam along a second axis, thereby expanding the first beam along the second axis for observation of the image by a user.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: July 28, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Wanli Chi, Hee Yoon Lee, Pasi Saarikko
  • Patent number: 10701326
    Abstract: An image display system. The image display system includes an image source for producing an image. The image source includes a plurality of display units arranged in an array and each display unit is configured to emit collimated light for producing a pixel of the image. The image display system includes a volumetric display module including a plurality of optical diffuser elements arranged in a stack. Furthermore, an optical diffuser element of the plurality of optical diffuser elements is maintained in a first state or a second state. The image display system includes a controller operatively coupled to each of the image source and the volumetric display module. The controller is configured to control an optical diffuser element to maintain the optical diffuser element in the second state and the plurality of display units for projecting the image on the optical diffuser element maintained in the second state.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: June 30, 2020
    Assignee: Lightspace Technologies, SIA
    Inventors: Ilmārs Osmanis, Kri{hacek over (s)}s Osmanis, Robers Zabels, Mārtiņ{hacek over (s)} Narels, Uǵis Gertners
  • Patent number: 10690932
    Abstract: Provided is a lighting device capable of safely illuminating a region to be illuminated having a first direction while making its edge sharp. A lighting device illuminates a region to be illuminated extending in a first direction and extending in a second direction intersecting with the first direction. The lighting device includes a light source and a diffractive optical element having a first hologram component and a second hologram component both of which diffract light from the light source and direct the light to the region to be illuminated, wherein the diffracted light from the first hologram component illuminates the entire region of the region to be illuminated and the diffracted light from the second hologram component illuminates the entire region of the region to be illuminated.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: June 23, 2020
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shumpei Nishio, Makio Kurashige
  • Patent number: 10692242
    Abstract: A vehicle analysis platform may cause one or more image capture devices to capture a plurality of images. The vehicle analysis platform may cause one or more sensors to provide measurement data associated with one or more operational characteristics of a vehicle. The vehicle analysis platform may determine, based on the plurality of images, one or more features of the vehicle and obtain, based on the one or more features, reference information associated with the vehicle. The vehicle analysis platform may analyze the vehicle based on the plurality of images and the reference information to determine an image score associated with the vehicle. The vehicle analysis platform may analyze the vehicle based on the measurement data and the reference information to determine an operational score associated with the vehicle. The vehicle analysis platform perform an action associated with the vehicle based on the image score and the operational score.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: June 23, 2020
    Assignee: Capital One Services, LLC
    Inventors: Mark Morrison, Prasad Pathapati
  • Patent number: 10690915
    Abstract: An apparatus for displaying an image, including: an input image node configured to provide at least a first and a second image modulated lights; and a holographic waveguide device configured to propagate the at least one of the first and second image modulated lights in at least a first direction. The holographic waveguide device includes: at least a first and second interspersed multiplicities of grating elements disposed in at least one layer, the first and second grating elements having respectively a first and a second prescriptions. The first and second multiplicity of grating elements are configured to deflect respectively the first and second image modulated lights out of the at least one layer into respectively a first and a second multiplicities of output rays forming respectively a first and second FOV tiles.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: June 23, 2020
    Assignees: Rockwell Collins, Inc., SBG Labs, Inc.
    Inventors: Milan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant, Wyatt L. Hendrick, James H. Stanley
  • Patent number: 10663767
    Abstract: Disclosed herein are methods, apparatus, and systems for providing an optical beam delivery device, comprising a first length of fiber comprising a first RIP formed to enable modification of one or more beam characteristics of an optical beam by a perturbation device and a second length of fiber having a second RIP coupled to the first length of fiber, the second RIP formed to confine at least a portion of the modified beam characteristics of the optical beam within one or more confinement regions.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 26, 2020
    Assignee: nLIGHT, Inc.
    Inventors: Dahv A. V. Kliner, Roger Farrow
  • Patent number: 10649128
    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a plurality of light beams having different principal angular directions corresponding to different view directions of the multiview display. The display includes multiview pixels that include sub-pixels. A size of the multibeam element is comparable to a size of a sub-pixel in a multiview pixel of the multiview display.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: May 12, 2020
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Ming Ma, Xuejian Li
  • Patent number: 10634903
    Abstract: An optical device unit that can operate very quietly and an image display apparatus having the optical device unit are provided. An optical device unit includes an optical device and a coupler joined to the optical device. The optical device includes an optical portion that is shaped as a plate and has a light incident surface on which light is incident, a movable portion that supports the optical portion, pivot portions that support the movable portion, and a support portion that supports the pivot portions. The support portion includes connection portions to which the pivot portions are connected and the connection portions are located away from the coupler.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 28, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yasushi Mizoguchi, Hisako Kojima, Shinichi Wakabayashi
  • Patent number: 10613307
    Abstract: Integrated rotary structure and fabrication method thereof are provided. An integrated rotary structure includes a cylinder material. The cylinder material includes a circular side wall, a third surface at one end of the circular side wall and a fourth surface at another end of the circular side wall opposing to the third surface. The third surface of the cylinder material is machined to form an elliptical reflective surface. The circular side wall of the cylinder material is machined to form a fifth surface and a sixth surface. A central symmetrical axis of the fifth surface and the sixth surface coincides with a first optical axis of the elliptical reflective surface. By using the fifth surface and the sixth surface as holding planes, the third surface is machined to form a curved non-reflective surface surrounding the elliptical reflective surface.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 7, 2020
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Qiang Wu, Liwan Yue
  • Patent number: 10598944
    Abstract: A beam expanding structure and an optical display module are disclosed. The beam expanding structure includes a plurality of transparent substrates in a stacked arrangement. Each transparent substrate includes a first reflective area and a second transflective. In each transparent substrate, the first area is to reflect a light beam incident thereon to the second area of one or more transparent substrate at downstream; the second area is to transmit part of a light beam received from one or more transparent substrate at upstream to an observation point, while reflecting rest of the light beam received from the one or more transparent substrate at upstream back to one or more transparent substrate at upstream; and the second area is further to at least partially reflect a light beam received from one or more transparent substrate at downstream back to one or more transparent substrate at downstream.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: March 24, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Bingchuan Shi
  • Patent number: 10592708
    Abstract: [Problem to be Solved] Conventional devices for reproduction of holograms for appreciative viewing do not have any functionality to gate access to special content by exploiting the characteristics of the hologram. Further, a system that allows users to easily perform judgment of authenticity has been much awaited as, with holograms, although a counterfeit prevention effect can be expected visually, counterfeit imitations of the holograms themselves are already in circulation. [Means to Resolve the Problem] It is made possible to read holographic barcodes with such portable information consoles as smartphones to perform judgment of authenticity. In this process, by controlling from the portable information console side the light sources illuminating the hologram, it is possible to add a strong authenticity judgment function without a major increase in cost and also without building any special infrastructure.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: March 17, 2020
    Assignee: ARTIENCE LAB INC.
    Inventor: Akira Shirakura
  • Patent number: 10585272
    Abstract: A microscopy system which includes a light source for illuminating a sample; an objective lens for capturing light emitted from the illuminated sample to form a signal beam; and a dispersive optical element through which the signal beam is directed, wherein the dispersive optical element converts the signal beam to a spatially coherent signal beam.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 10, 2020
    Assignees: UNIVERSITY OF UTAH RESEARCH FOUNDATION, BAR-ILAN UNIVERSITY
    Inventors: Rajesh Menon, Jordan Gerton, Carl Ebeling, Amihai Meiri, Zeev Zalevsky
  • Patent number: 10585396
    Abstract: A head-up display for a windscreen having spatially variant optical power. The head-up display includes a diffuser arranged to display an image. The diffuser is shaped to compensate for the spatially variant optical power of the windscreen. A holographic projector may be provided, which is arranged to project the image for display onto the diffuser and includes a spatial light modulator arranged to apply a phase-delay distribution to incident light. The phase-delay distribution includes phase-only data representative of an object. The projector further includes Fourier transform means arranged to perform a Fourier transform of phase modulated light received from the spatial light modulator and to form the image on the diffuser.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: March 10, 2020
    Assignee: Two Trees Photonics Limited
    Inventors: Jamieson Christmas, Dackson Masiyano
  • Patent number: 10585393
    Abstract: Provided is a holographic display apparatus including a motor configured to synchronize with a hologram transmitted based on user's point of view and to rotate; a spatial light modulator configured to load hologram data generated based on the user's point of view in a fixed position state and to perform a light modulation; a mirror configured to provide the hologram which is light-modulated by the spatial light modulator according to the user's point of view during the rotation by rotation operation of the motor; and a hologram correction unit configured to compensate a rotation error between the fixed spatial light modulator and the rotating mirror and to provide a corrected hologram data to the spatial light modulator.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: March 10, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Tae One Kim, Hyun Eui Kim, Hyon Gon Choo, Jin Woong Kim, Jin Soo Choi
  • Patent number: 10578867
    Abstract: A head-up display device for displaying a virtual image superimposed over a field of view to a viewer is provided. The head-up display device includes a picture generating unit having an illumination source, such as a laser, to generate a real image following a first light beam. A windshield of a vehicle engages the first light beam, either at an inclined angle or perpendicular, to reflect the first light beam away from the viewer as reflected images. A combiner disposed on the windshield including a holographic optical element steers the first light beam toward the viewer as a third light beam to present the virtual image within the field of view of the viewer. Mirrors may direct and magnify first light beam onto the combiner. A method for displaying a virtual image superimposed over a field of view to a viewer using a head-up display device is also provided.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: March 3, 2020
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Giang-Nam Nguyen, Patrick Nebout, Benoit Chauveau
  • Patent number: 10565761
    Abstract: A system, method and computer program products for prioritizing the stacking order of virtualized objects within a z-index of an augmented reality system by presenting the most valuable, relevant or important information more prominently. Prioritization of the virtualized object may occur dynamically, as a function of the user's primary focus. As the user's primary focus changes from one physical object to another, the stacking order may change in response to the shift in focus. Embodiments may use one or more techniques to identify the primary focus such as the direction of the user's gaze, the focal point of one or more visual recording systems (i.e. cameras) or the user may manually highlight one or more objects via the HUD or interface of the augmented display system. The disclosed embodiments allow for the more predominate or relevant virtualized objects within the augmented display to receive priority, unobscured viewing by the user.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: February 18, 2020
    Assignee: Wayfair LLC
    Inventors: Lisa Seacat DeLuca, Jeremy A. Greenberger, Zachary M. Greenberger