Patents Examined by Wen Huang
  • Patent number: 10732327
    Abstract: A Fresnel lens includes a Fresnel surface that includes effective Fresnel surfaces allowing imaging rays to pass through. Two adjacent effective Fresnel surfaces are connected through a non-effective Fresnel surface. On a cross-section including an optical axis of the Fresnel lens, a draft angle is between a reference line and a connecting straight line between one end of each non-effective Fresnel surface located at a tooth peak of the Fresnel lens and the other end of each non-effective Fresnel surface located at a tooth valley of the Fresnel lens. The optical axis coincides with the cross-section. The reference line is parallel to the optical axis and passes through the end of the effective Fresnel surface located at the tooth peak of the Fresnel lens. The draft angles each smaller than 90 degrees include first, second, third, fourth, and fifth draft angles which gradually increase radially outward from the optical axis.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: August 4, 2020
    Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventors: Yi-Jyun Lin, En-Chieh Chen
  • Patent number: 10732403
    Abstract: An apparatus includes a scan module having one or more laser sources that generate one or more initial laser beams and two or more beam deflectors that deflect the initial laser beam(s). A beam optic substantially collimates the initial laser beam(s) to produce one or more collimated laser beams. one or more beam deflector controllers control the angle of beam deflection from each beam deflector. Relay optics between the two or more beam deflectors image each sequential beam deflector onto the subsequent beam deflector in such a manner that the beam deflecting from the last beam deflector in an optical chain contains a combination or superposition of all the beam deflections of the beam deflectors in the sequence, and maintains a beam divergence of the one or more collimated beams.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: August 4, 2020
    Assignee: MIRRORCLE TECHNOLOGIES, INC.
    Inventors: Veljko Milanovic, Abhishek Kasturi
  • Patent number: 10732324
    Abstract: The invention relates to a method for preparing an optical system item having a non-zero radius of curvature and coated with an interference coating. Said method includes: a) providing a thermoplastic film coated with a multilayer interference coating containing at least one layer having a refractive index of greater than 1.65 and at least one layer having a refractive index of less than or equal to 1.65, at least one of the interference coating layers being a vacuum-deposited organic/inorganic layer, b) laminating said coated thermoplastic film, by means of an adhesive layer, onto an optical system item including a substrate, and c) recovering said optical system item, including a substrate coated with the adhesive layer, from the thermoplastic film and the multilayer interference coating.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 4, 2020
    Assignee: Essilor International
    Inventors: Céline Lechat, Karin Scherer
  • Patent number: 10712475
    Abstract: An optical element may include a substrate. The optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The optical element may include at least one layer disposed on a portion of the first anti-reflectance structure. The optical element may include a second anti-reflectance structure for the particular wavelength range formed on the at least one layer. A depth between a first surface of the first anti-reflectance structure and a second surface of the second anti-reflectance structure, a first index of refraction of the first anti-reflectance structure, a second index of refraction of the second anti-reflectance structure, and a third index of refraction of the at least one layer may be selected to form a diffractive optical element associated with a particular phase delay for the particular wavelength.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 14, 2020
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Stephen Bagnald
  • Patent number: 10705339
    Abstract: Aspects of the present invention relate to suppression of stray light in head worn computing.
    Type: Grant
    Filed: January 7, 2017
    Date of Patent: July 7, 2020
    Assignee: Mentor Acquisition One, LLC
    Inventor: John N. Border
  • Patent number: 10705269
    Abstract: An integrated optical device that combines a diffractive optical element (DOE) to provide beam combining for coherent beams and a spectral beam combination (SBC) grating to provide beam combining for incoherent beams. The device includes a planar substrate and a reflective coating deposited on the substrate. A top dielectric layer is deposited on the reflective coating and a photoresist layer is deposited on the top dielectric layer. A periodic structure is formed into the top dielectric layer in a first direction that defines the DOE and a periodic grating having grooves is formed into the top dielectric layer in a second direction substantially orthogonal to the first direction that defines the SBC grating where the periodic structure includes periodic modulations along the length of the grooves that are orthogonal to a channel-to-channel periodicity of the periodic grating.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: July 7, 2020
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: Joshua E. Rothenberg
  • Patent number: 10698145
    Abstract: A polarizing plate includes: a polarizing film; and an optical film on a surface of the polarizing film, the optical film including a first resin layer and a second resin layer sequentially stacked on the polarizing film, wherein the second resin layer has a higher index of refraction than the first resin layer, a plurality of pattern groups is at an interface between the first resin layer and the second resin layer, each of the pattern groups including at least two embossed optical patterns protruding from the second resin layer and a flat section between adjacent embossed optical patterns, each of the first surfaces being a bottom portion of each of the embossed optical patterns, and, in each pattern group, shortest distances between the first surfaces of the embossed optical patterns and the flat sections immediately adjacent to the embossed optical patterns are sequentially increased, or sequentially decreased.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong Ho Wee, Jeong Ho Lee, Kyoung Min Cho, Jang Hyun Cho, Young Oh
  • Patent number: 10698134
    Abstract: The present disclosure provides a system and method for a tunable ENZ material that can vary the absorption of radiant energy. The tunable ENZ material can act as a broadband absorber advantageously using a stack of ultrathin conducting layers having an epsilon-near-zero (ENZ) regime of permittivity at different wavelengths. The conducting materials can include at least partially transparent conducting oxide or transition metal nitride layers with different electron concentrations and hence different ENZ frequencies for a broadband range of energy absorption. The layer(s) can be directly tuned to various frequencies to achieve high levels of absorption at deep subwavelength ENZ thicknesses. An applied electric bias can create electron accumulation/depletion regions in an ENZ semiconductor device and allows control of plasma frequency and hence high levels of absorption in the device. Further, for a stack of layers, the carrier concentration can be altered from layer to layer.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 30, 2020
    Assignee: Baylor University
    Inventors: Oleksiy Anopchenko, Ho Wai Howard Lee
  • Patent number: 10698285
    Abstract: The invention relates to devices that provide a color change under the influence of an electric voltage, in particular to an electrochromic device and a method for manufacturing such a device. Disclosed is the method for manufacturing an electrochromic device comprising at least two electrodes that are flexible and optically transparent with a hermetically closed space between the electrodes filled with an electrochromic composition that may contain transparent and insoluble microparticles that function as spacers.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 30, 2020
    Assignee: IGLASS TECHNOLOGY, INC.
    Inventors: Evgeniy Vladimirovich Vasiliev, Sergey Olegovich Borisov, Pavel Anatolievich Zaikin, Nikita Valerievich Kruglikov
  • Patent number: 10696015
    Abstract: Provided is an optical member which includes: a substrate; and a laminated structure including two or more kinds of layers having different materials which are disposed on the substrate, in which the number of layers constituting the laminated structure is 10 or more, the maximum layer thickness of the layers constituting the laminated structure is 8 nm or less, and the minimum transmittance in a wavelength range of 400 nm to 800 nm or in a wavelength range of 6 ?m to 12 ?m is 10% or more.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 30, 2020
    Assignee: FUJIFILM CORPORATION
    Inventors: Tatsuya Yoshihiro, Takeharu Tani
  • Patent number: 10691198
    Abstract: A pancake lens assembly includes a back optical element, a front optical element and an absorptive linear polarizer. The back optical element transmits a defined amount of light incident on a surface of the back optical element and reflects a remaining amount of the light incident on the surface of the back optical element. The front optical element is in optical series with the back optical element and positioned closer to an eye-box than the back optical element. The front optical element is configured to transmit toward the eye-box light received from the back optical element having a polarization parallel to a transmission axis of the front optical element. The absorptive linear polarizer is positioned between the front optical element and the eye-box. A transmission axis of the absorptive linear polarizer is oriented parallel to the polarization of the light being transmitted by the front optical element.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 23, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Jacques Gollier, Andrew John Ouderkirk
  • Patent number: 10686181
    Abstract: An electro-optic device includes a first substrate having a first surface and a second surface, the first and second surfaces are substantially parallel to one another; a second substrate having a third surface and a fourth surface, the third and fourth surfaces are substantially parallel to one another; a sealing member; and an electrochromic medium; wherein the first and second substrates are substantially parallel to one another; the sealing member is positioned between the first substrate and second substrate to define a chamber containing the electrochromic medium; the second surface and the third surface are proximate to one another; the second surface includes a conductive layer; the third surface includes an optional second conductive layer; an active cathode region is present in one or more of the first conductive layer and the optional second conductive layer; an active anode region is present in one or more of the first conductive layer and the optional second conductive layer; and (1) the active a
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: June 16, 2020
    Assignee: GENTEX CORPORATION
    Inventors: Punam Giri, Leroy J. Kloeppner
  • Patent number: 10678306
    Abstract: A viewing angle changing film capable of changing the viewing angle of a display panel is provided. The viewing angle changing film includes a base film opposed to a display panel, and an attachment having a thickness smaller than a thickness of the base film. The base film can change the viewing angle of the display panel. The attachment is inserted into air gap defined between the display panel and a bezel. The attachment is a separate member from the base film, and is fixed to the base film.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: June 9, 2020
    Assignee: LENOVO (SINGAPORE) PTE LTD
    Inventors: Osamu Ohsawa, Takehito Yamauchi, Shinichi Kubota, Hiroyuki Noguchi
  • Patent number: 10678040
    Abstract: A microscope slide mounting system includes a slide mounting medium, with a predetermined weight of powdered gum arabic in a predetermined weight of distilled water; a predetermined weight of anhydrous chloral; a predetermined weight of anhydrous glycerin; and a predetermined percentage of ethylene glycol; the ethylene glycol acts as a denaturant in the mounting medium; and the ethylene glycol causes mild illness when ingested, thereby discouraging the use of the mounting medium as a sedative or recreational drug and prevents the crystallization of the medium.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: June 9, 2020
    Inventor: Thomas Edward Hays
  • Patent number: 10670783
    Abstract: Disclosed herein are metasurfaces formed on a substrate from a plurality of posts. The metasurfaces are configured to be optically active at one or more wavelengths and in certain embodiments are configured to form lenses having unexpectedly strong focusing power. In particular, the metasurfaces are formed from “low-contrast” materials, including CMOS-compatible materials such as silicon dioxide or silicon nitride. Accordingly, the disclosed metasurfaces are generally CMOS compatible and therefore embody a new paradigm in metasurface design and manufacturing.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: June 2, 2020
    Assignee: University of Washington
    Inventors: Alan Zhan, Shane Colburn, Arka Majumdar
  • Patent number: 10670856
    Abstract: An optical module includes a variable wavelength interference filter provided with a pair of reflecting films, and an electrostatic actuator configured to change a gap dimension between the pair of reflecting films, a driver configured to apply a periodic drive voltage to the electrostatic actuator, a gap detector configured to detect a gap dimension between the pair of reflecting films, and a light receiver configured to receive light from the variable wavelength interference filter. The light reception signal from the light receiver is detected at a predetermined timing from a detection timing of one of a maximum value and a minimum value of the gap dimension detected by the gap detector.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Ryohei Kuri
  • Patent number: 10670875
    Abstract: A diffractive optical element 10 includes a first diffraction grating 4, a second diffraction grating 5, films 6 formed between the first diffraction grating 4 and the second diffraction grating 5. The DOE 10 satisfies a conditional expression of n2<n1<nha, where nha is an average refractive index of films 6b formed between grating wall surfaces 4b and grating wall surfaces 5b at a wavelength of 550 nm, n1 is a refractive index of the first diffraction grating 4 at a wavelength of 550 nm, and n2 is a refractive index of the second diffraction grating 5 at a wavelength of 550 nm. The films 6b and films 6a that are formed between grating surfaces 4a and grating surfaces 5a satisfy a predetermined relationship.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 2, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mikio Kobayashi, Reona Ushigome
  • Patent number: 10670853
    Abstract: To maximize the light capturing and imaging resolution capability of an imaging satellite while minimizing weight, the primary reflector and other elements of the optical path have a shape optimized to the shape of the satellite. For a nanosatellite with a square cross-section, the first mirror and other elements of the telescope section in the optical path have a square cross-section, as does the sensor array of the camera section.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: June 2, 2020
    Assignee: Hera Systems, Inc.
    Inventors: David D. Squires, Peter Mrdjen, Robert Machinski, Jolyon D. Thurgood, Brij Agrawal, Greg Defouw, Jeffrey Wedmore
  • Patent number: 10670779
    Abstract: An optical element is disclosed. The optical element includes a plurality of layers. The plurality of layers includes a notch filter array that has a plurality of notch filter elements. Each notch filter element is configured to filter out energy within at least one wavelength band of interest. The plurality of layers further includes a polarization-responsive grid array having a plurality of polarization elements and includes a microlens array having a plurality of microlens elements. Each microlens element is configured to image a portion of a scene onto an image plane.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: June 2, 2020
    Assignee: Lockheed Martin Corporation
    Inventors: Johann M. Veras, David R. Twede, Clara R. Baleine, Gary C. Vanstone
  • Patent number: 10663758
    Abstract: The multiuse eyeglasses include a frame that holds two lenses and arms that extend from the frame. The arms include a first axis of rotation that is generally perpendicular to the arms and a second axis of rotation that is orthogonal to the first axis of rotation and allows the arms to be rotated downwards relative to the frame.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 26, 2020
    Assignee: Bunny Eyez, LLC
    Inventors: Jennifer Hutt, Stacy Fritz, Andrea Gluck