Patents Examined by Kimberly N. Kakalec
  • Patent number: 10642045
    Abstract: A light engine comprises a liquid crystal on silicon (LCOS) panel that is operated in combination with illumination and imaging optics to project high-resolution virtual images into a waveguide-based exit pupil expander (EPE) that provides an expanded exit pupil in a near-eye display system. In an illustrative example, the illumination optics comprise a laser that produces illumination light that is reflected by a MEMS (micro-electromechanical system) scanner using raster scanning to post-scan optics including a microlens array (MLA) and one or more collimating or magnifying lenses before impinging on the LCOS panel. The LCOS panel operates in reflection in combination with imaging optics, including one or more of beam-steering mirror and beam splitter, to couple virtual image light from the LCOS panel into the EPE.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 5, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Richard Andrew Wall, Joshua Owen Miller, Tuomas Vallius, Andrew Maimone, Joel Steven Kollin
  • Patent number: 10642086
    Abstract: The invention provides an optical film for improving image quality of a liquid crystal display comprising: a light directing structure layer, a first filling layer, a plurality of first diffraction gratings and a second filling layer. The light directing structure layer comprises a plurality of light directing micro structures, wherein the ratio of height to width of each light directing micro structure is in the range of 1.5 to 6. The first filling layer is disposed on the light directing structure layer, and the refractive index of the first filling layer and the light directing structure layer are different. The first diffraction gratings along with a first direction are formed on the first filling layer. The second filling layer is disposed on the first diffraction gratings and the refractive index of the second filling layer and the first diffraction gratings are different.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: May 5, 2020
    Assignee: BenQ Materials Corporation
    Inventors: Chen-Kuan Kuo, Cyun-Tai Hong, Chuen-Nan Shen, Meng-Jie Lin, Chia-Feng Lin, Meng-Chia Cheng
  • Patent number: 10642043
    Abstract: Disclosed herein are devices and methods to provide a holographic optical element (HOE) having a modified shape and a structural attribute. At least one wavefront may be used to cause a first structure change in a material, used for the HOE, in a first shape. The material used for the HOE may be changed from the first shape to the modified shape to cause a second structure change in the material. The structural attribute in the material may be provided from a combination of the first structure change and the second structure change.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 5, 2020
    Assignee: INTEL CORPORATION
    Inventors: David Ziegler, Mickael Guillaumee, Eric Tremblay, Christophe Moser, Frederic Montfort
  • Patent number: 10642059
    Abstract: A method of performing coherent transformations of optical fields includes forming a far field distribution of the input optical field. A fraction of the formed far field is diffracted by producing localized discontinuities within said far field. A Fraunhofer diffraction pattern of the diffracted optical field is formed. The Fraunhofer diffraction pattern is modified by producing localized optical path differences within the Fraunhofer diffraction pattern. The transformed output optical field is produced in the far field with respect to the modified Fraunhofer diffraction pattern.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 5, 2020
    Inventors: Yakov Soskind, Michael Soskind, Rose Soskind
  • Patent number: 10642042
    Abstract: Disclosed herein is a lens for a wearable projection system. The lens includes a holographic optical element embedded within the lens and covering a portion of the viewable area of the lens. The lens can be manufactured by providing a first lens blank, affixing the HOE to a portion of the first lens blank, and forming a second lens blank on the first lens blank to embed the HOE between the lens blanks.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 5, 2020
    Assignee: INTEL CORPORATION
    Inventors: Andrew G. Wade, Andrew Dawn, Mickael Guillaumee, David Ziegler
  • Patent number: 10634832
    Abstract: Low loss, high reflectivity wide band mirror films provide a desired mix of specular reflection and diffuse reflection or scattering to provide semi-specular reflectivity. The mirror films generally include both a specularly reflective multilayer optical film (MOF) having a wide reflection band, and a scattering layer. In some cases a low refractive index TIR layer is sandwiched between the MOF and the scattering layer. In other cases the scattering layer contacts the MOF directly. In embodiments that include the TIR layer, the TIR layer preferably has a nanovoided morphology and includes a plurality of particles and a polymer binder. In embodiments wherein the scattering layer contacts the MOF directly, the scattering layer preferably also has a nanovoided morphology and includes a plurality of particles and a polymer binder.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: April 28, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: William D. Coggio, William B. Black, Michael F. Weber, Huiwen Tai
  • Patent number: 10620422
    Abstract: A far-optical device comprising a reversal system and an adjustable optical magnification means with more than fourfold magnification, wherein the far-optical device has an optical beam deflection means which at all magnifications ensures a subjective field of view of the far-optical device of at least 22° at least for light of a wavelength of about 550 nm.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: April 14, 2020
    Assignee: Swarovski-Optik KG.
    Inventor: Albert Fiedler
  • Patent number: 10618234
    Abstract: The present application relates generally to retroreflective sheeting and the tools and methods used to make retroreflective sheeting. Microreplication tools and sheeting include controlled surface structure or haze. The surface structure or haze can be introduced, for example, by chemical etching of the tool surface and/or electroplating.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: April 14, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kenneth L. Smith, James R. Imbertson, John C. Kelliher, John A. Worrell, Sidney A. Ellingstad
  • Patent number: 10598831
    Abstract: The present disclosure provides a retroreflective film for removable application to a three-dimensional object. The film comprises a transparent film layer; a first transparent adhesive layer; a retroreflective layer comprising glass microspheres and a binder; a metalized coating layer comprising aluminum applied on the retroreflective layer; a removable adhesive layer having a peel force of 2 lbs/inch or less. When the film is elongated by 50% it retains at least 50% of its unstretched coefficient of retroreflection as measured at the 0.2 degree observation angle and ?4 degree entrance angle. When the film is elongated by 50% it retains at least 50% of its unstretched gloss when measured at a 20 degree angle.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: March 24, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jennifer Jeannette, Andrew W. Morris
  • Patent number: 10591651
    Abstract: The invention relates to electromagnetic radiation microoptical diffraction gratings and to a method suitable for the manufacture thereof. The diffraction gratings in accordance with the invention can be used as microspectrometers in the form of scanning microgratings. The microgratings are provided with a surface structure and are able to be manufactured cost effectively and in high volumes. The surface structure is formed at a surface of a substrate and is formed from linear structural elements arranged substantially equidistantly and aligned substantially parallel to one another. At least part of the surface of the substrate and of the structural elements is coated with at least one further layer which forms a uniform sinusoidal surface contoured in a wave-shape (sinusoidal) manner and having alternating arranged wave peaks and wave troughs. A reflective layer can additionally be applied to increase the intensity of reflected radiation.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: March 17, 2020
    Assignee: HIPERSCAN GMBH
    Inventors: Fabian Zimmer, Alexander Wolter, Harald Schenk
  • Patent number: 10591718
    Abstract: This rotary drive apparatus is arranged to rotate a flywheel arranged to support an optical component arranged to reflect incoming light coming from a light source or allow the incoming light to pass therethrough, and includes a motor including a rotating portion; and the flywheel, the flywheel being supported by the motor and arranged to rotate about a central axis extending in a vertical direction. The flywheel includes a plate-shaped accommodating portion in which the optical component is arranged; a bottom surface arranged at a bottom portion of the accommodating portion, and arranged to slant with respect to at least one of two opposed side surfaces of the optical component; and a base surface arranged to be in contact with at least a portion of another one of the two opposed side surfaces of the optical component.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 17, 2020
    Assignee: NIDEC CORPORATION
    Inventor: Yoichi Sekii
  • Patent number: 10589980
    Abstract: In described examples, a microelectromechanical system (MEMS) includes a first element and a second element. The first element is mounted on a substrate and has a first contact surface. The second element is mounted on the substrate and has a second contact surface that protrudes from the second element to form an acute contact surface. The first element and/or the second element is/are operable to move in: a first direction, such that the first contact surface comes in contact with the second contact surface; and a second direction, such that the second contact surface separates from the first contact surface.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: March 17, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Patrick Ian Oden, James Carl Baker, Sandra Zheng, William C. McDonald
  • Patent number: 10585216
    Abstract: A light-guiding prism includes a first optical surface which is a surface of incidence on which image light from a display element is incident, and a second optical surface, a third optical surface, a fourth optical surface, and a fifth optical surface which are at least four optical surfaces disposed to surround an optical path of the image light that is incidence from the first optical surface. A sixth optical surface reflects the image light that is guided in a prism surrounded by that at least four side surfaces, which are the second optical surface, the third optical surface, the fourth optical surface, and the fifth optical surface. The fourth optical surface and the fifth optical surface are inclined at a surface perpendicular to a surface include an incident-light axis of the image light, made by the incident-light axis and a reflected-light axis of the sixth optical surface.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 10, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Seiji Tatsuta, Yoichi Iba
  • Patent number: 10583680
    Abstract: A method for producing security elements, security elements, a security document with at least one security element as well as a transfer film with at least one security element wherein a three-dimensional object is recorded and a surface profile of the three-dimensional object, described by a function F(x,y), is determined, wherein the function F(x,y) describes the distance between the surface profile and a two-dimensional reference surface spanned by co-ordinate axes x and y at the co-ordinate points x and y. A first microstructure is determined in such a way that the structure height of the first microstructure is limited to a predetermined value smaller than the maximum distance between the surface profile and the two-dimensional reference surface, and the first microstructure provides an observer with a first optical perception which corresponds to the surface profile of the three-dimensional object described by the function F(x,y).
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: March 10, 2020
    Assignee: OVD Kinegram AG
    Inventors: Wayne Robert Tompkin, Andreas Schilling, Sebastian Mader
  • Patent number: 10578858
    Abstract: There is set forth herein an optomechanical device which can comprise a first mirror and a second mirror forming with the first mirror a cavity. In one aspect the first mirror can be a movable mirror. The optomechanical device can be adapted so that the first mirror is moveable responsively to radiation force.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: March 3, 2020
    Assignee: Cornell University
    Inventors: Sasikanth Manipatruni, Michal Lipson, Jacob T. Robinson
  • Patent number: 10578870
    Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 3, 2020
    Assignee: Magic Leap, Inc.
    Inventor: Jyrki Sakari Kimmel
  • Patent number: 10564322
    Abstract: A multi-layered display including an upper display screen, and a lower display screen arranged so as to at least partially overlap with the upper display screen is described. An antiglare layer is disposed on the upper display screen. The antiglare layer includes a diffraction pattern configured to blur ambient reflections without substantially affecting transmitted light. The diffraction pattern may have a quarter wavelength thickness. Method for forming the multi-layered display is also provided.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: February 18, 2020
    Assignee: PURE DEPTH LIMITED
    Inventors: John D. Newton, Gareth P. Bell, James S. Emslie
  • Patent number: 10551613
    Abstract: A micromirror and micromirror array may have a first stationary structure, and a mirror structure connected to a first pivoting structure that pivots the mirror structure relative to the first stationary structure about a first axis of rotation. A first comb drive pivots the mirror structure about the first axis of rotation. The first comb drive has a first portion attached to the stationary structure and a second portion attached to the mirror structure, the first portion being electrically isolated from the second portion. The micromirror or micromirror array may be mounted to a Through Silicon Via (TSV) wafer having electrical connections that extend between a first side and a second side of the TSV wafer such that the first and second portions of each comb drive are electrically connected to the electrical connections.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: February 4, 2020
    Inventor: Tiansheng Zhou
  • Patent number: 10545457
    Abstract: In an embodiment, an off-axis hologram is provided. The off-axis hologram creates two, conjugate images which are on either side (off-axis) of the 0-order beam. A Multiple Beam Grating (MBG) is used to both duplicate the conjugate images and to redirect the images along the axis. The 0-order beam is blocked before or at the MBG. The MBG projects the images onto a 3D surface, such as a person's face.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: January 28, 2020
    Assignee: K Laser Technology, Inc.
    Inventor: Wai-Hon Lee
  • Patent number: 10539772
    Abstract: A method of imaging a live biological specimen includes generating one or more first light sheets; directing the generated one or more first light sheets along respective paths that are parallel with a first illumination axis such that the one or more first light sheets optically interact with at least a portion of the biological specimen in a first image plane; recording, at each of a plurality of first views, images of fluorescence emitted along a first detection axis; generating one or more second light sheets; directing the generated one or more second light sheets along respective paths that are parallel with a second illumination axis such that the one or more second light sheets optically interact with at least a portion of the biological specimen in a second image plane, and recording, at each of a plurality of second views, images of fluorescence emitted along a second detection axis.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: January 21, 2020
    Assignee: Howard Hughes Medical Institute
    Inventors: Philipp Johannes Keller, Raghav Kumar Chhetri