Patents Examined by Jade R Chwasz
  • Patent number: 12001168
    Abstract: A holographic projection system including first, second and third light sources, SLMs, a lens, a combiner and a control module. The first, second and third light sources generate respective light beams. The light beams have respective wavelengths. The SLMs respectively diffract the light beams. The lens is disposed to adjust a divergence angle of one of the light beams, such that diffracted light out of each of the SLMs is at a same diffraction angle. The SLMs encode phase holograms including respective versions of a graphic image based on light generated by the light sources including light output from the lens to provide phase hologram beams. The combiner combines the phase hologram beams to provide a combined phase hologram beam projected for viewing a combined graphic image. The control module encodes a prism hologram on one of the SLMs to align outputs of the SLMs.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 4, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kai-Han Chang, Thomas A. Seder
  • Patent number: 11988820
    Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number. An imaging lens comprises in order from an object side to an image side, a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive or negative refractive power, a fourth lens with negative refractive power, a fifth lens with positive refractive power, and a sixth lens with negative refractive power, wherein said first lens is formed in a meniscus shape having an object-side surface being convex in a paraxial region, said second lens has an object-side surface being convex in a paraxial region, said sixth lens has an image-side surface being concave in a paraxial region, and the predetermined conditional expressions are satisfied.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: May 21, 2024
    Assignee: TOKYO VISIONARY OPTICS CO., LTD.
    Inventors: Yukio Sekine, Koki Tokuno, Zhiyu Huang
  • Patent number: 11977019
    Abstract: Optical traps enable nanoscale manipulation of individual biomolecules while measuring molecular forces and lengths. Disclosed herein is a camera-based detection system that enables accurate and precise measurements of forces and interactions in a dual optical trap. Optical traps may be used to stretch and unzip DNA molecules while measuring the displacements of trapped particles from their trapping centers with sub-nanometer accuracy and precision.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: May 7, 2024
    Assignee: Cornell University
    Inventors: Michelle D. Wang, Jessica L. Killian, James Inman
  • Patent number: 11971568
    Abstract: A polarizing plate may have high transmittance characteristics and suppressed reflected light. An optical device may be provided with the polarizing plate. The polarizing plate may have a wire grid structure that includes a transparent substrate and grid-like projection portions arranged on the transparent substrate at a pitch shorter than the wavelength of light in a used bandwidth and extending in a predetermined direction. The grid-like projection portions may each have a reflective layer and a dielectric layer in order from the transparent substrate side. When viewed from the predetermined direction, the reflective layer has may have a step on the side thereof and may have the largest bottom width on the transparent substrate side.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 30, 2024
    Assignee: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Patent number: 11966067
    Abstract: A display panel and a manufacturing method therefor are disclosed. The display panel includes a plurality of pixels and corresponding filters. A planarization layer is arranged on the filters. The planarization layer and a transparent filter are made of the same transparent photoresist material. The manufacturing method includes: preparing a filter; and forming a planarization layer on the filter, where preparing a filter includes forming a transparent filter, where the same transparent photoresist material is used in the operation of forming the transparent filter and in the operation of forming the planarization layer on the filter.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: April 23, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventor: Huailiang He
  • Patent number: 11960106
    Abstract: The disclosure provides an augmented reality (AR) device, a notebook, and smart glasses. The AR device includes a laser source, a spatial light modulator (SLM), and a hologram optical element (HOE). The laser source provides a coherent laser ray. The SLM provides a diffraction pattern solely corresponding to the coherent laser ray. When the SLM receives the coherent laser ray, the diffraction pattern diffracts the coherent laser ray as a hologram in response to the coherent laser ray. The HOE provides a concave mirror effect merely in response to a wavelength of the coherent laser ray, wherein the HOE receives the hologram and magnifies the hologram as a stereoscopic virtual image.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: April 16, 2024
    Assignee: Acer Incorporated
    Inventors: Yi-Jung Chiu, Wei-Kuo Shih, Shih-Ting Huang
  • Patent number: 11947135
    Abstract: A light control film is described comprising alternating transmissive regions and absorptive regions disposed between a light input surface and a light output surface. The absorptive regions have an aspect ratio of at least 30. In some embodiments, the alternating transmissive regions and absorptive regions have a transmission as measured with a spectrophotometer at a viewing angle of 0 degrees of at least 35, 40, 45, or 50% for a wavelength of the range 320-400 nm (UV) and/or at least 65, 70, 75, or 80% for a wavelength of the range 700-1400 nm (NIR). In another embodiment, the absorptive regions block light at the light input surface and light output surface and the maximum surface area that is blocked is less than 20% of the total alternating transmissive regions and absorptive regions. Also described are various optical communication systems comprising the light control films described herein and methods.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 2, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Daniel J. Schmidt, Caleb T. Nelson, Kevin W. Gotrik, Raymond J. Kenney, John A. Wheatley, Kenneth A. Epstein, Gary T. Boyd, Corey D. Balts
  • Patent number: 11947134
    Abstract: A device is provided to generate a three-dimensional (3D) real image. A display panel is divided into several sub-areas for emitting scenes. Through a projecting lens-array unit, the scenes enter a fusion lens unit to form a real image of light field at a position beyond common barrier. Through an eyepiece unit, the image is emitted to human eye. Thus, the present invention provides a device for near-eye viewing, which reduces existing human-eye vergence accommodation conflict (VAC) in most augmented reality and mixed reality devices. Therein, the display of near-eye light field is a process of light-field reproduction, which merges the scenes and reduces aberration.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 2, 2024
    Assignee: National Taiwan University
    Inventors: Jiun-Woei Huang, Chang-Le Liu, Hong-Ming Chen, Kuang-Tsu Shih
  • Patent number: 11914174
    Abstract: A vehicle surface includes a set of retroreflectors configured to reflect, at least in part, incident hostile light towards a source of the incident hostile light.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: February 27, 2024
    Assignee: BAE SYSTEMS PLC
    Inventor: Mark Edgar Bray
  • Patent number: 11906728
    Abstract: Examples are disclosed that relate to pixel-shifting devices for increasing display resolution. An example pixel-shifting device comprises an outer frame, an inner frame coupled to the outer frame via a flexure, a path-shifting optical element mounted to the inner frame, and one or more piezoelectric actuators configured to drive motion of the inner frame.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: February 20, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Utku Baran, Wyatt Owen Davis, Fei Chen
  • Patent number: 11903243
    Abstract: An optical film including a refractive index changing unit region comprising at least one high-refraction unit region and at least one low-refraction unit region, the refractive index changing unit region in which a refractive index varies along the plane direction, is provided. The optical film has excellent abrasion resistance and pressure resistance while having excellent light extraction efficiency.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 13, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jin Suk Song, Min Soo Song, Sang Choll Han
  • Patent number: 11885984
    Abstract: A housing including a first viewing direction and a second viewing direction opposite to the first viewing direction, a first display unit disposed to be spaced from a top surface on a side of one end of the housing at a first interval with a display surface facing the housing, a second display unit disposed on a side of the other end of the housing, a first optical element configured to transmit a portion of light emitted from the first display unit and reflect a portion of the light, a second optical element configured to transmit a portion of light emitted from the second display unit and reflect a portion of the light, and a third optical element configured to transmit a portion of the light emitted from the first display unit and the second display unit and reflect a portion of the light.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: January 30, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Motohiro Makiguchi, Hideaki Takada
  • Patent number: 11835923
    Abstract: Example embodiments provide digital holographic techniques and associated systems for imaging through scattering media in a strictly one-sided observation in which the observer (e.g. the controller of the camera) has no access to the object plane nor does the observer introduce a fluorescing agent to the object plane. An example imaging system comprises a laser source, a digital sensor array, and a processing system.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: December 5, 2023
    Assignee: MAXAR MISSION SOLUTIONS INC.
    Inventors: Richard G Paxman, David A. Carrara
  • Patent number: 11822078
    Abstract: An electronic device such as a head-mounted display may have a display system that produces images. The display system may have one or more pixel arrays (26-1, 26-2) such as liquid-crystal-on-silicon pixel arrays. Images from the display system may be coupled into a waveguide (116) by an input coupler system (114X, 114Y) and may be coupled out of the waveguide in multiple image planes using an output coupler system (120X, 120Y). The input and output coupler systems may include single couplers, stacks of couplers, and tiled arrays of couplers. Multiplexing techniques such as wavelength multiplexing, polarization multiplexing, time-division multiplexing, multiplexing with image light having different ranges of angular orientations, and/or tunable lens techniques may be used to present images to a user in multiple image planes.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 21, 2023
    Assignee: Apple Inc.
    Inventors: Hyungryul Choi, Eric J. Hansotte, Guolin Peng
  • Patent number: 11815856
    Abstract: A method for optimally producing a holographic image using a Holographic Optical Element (HOE) and the HOE meant for controlling directions and divergences of light beams to impart system compactness. The system uses concave and convex lenses and other beam expanding, splitting, modulating and combining optics for realization of compactness and high throughput. The thin laser beam is split using a holographic optical element and a conventional beam splitter. A neutral density filter adjusts the intensity of a reference beam to match the intensity of an object beam so that high quality digital holograms can be recorded. Effects of vibrations are minimized by the compact optical design, by anti-vibration mounts, by mounting all the opto-mechanical components on a single rigid platform and by enclosing the system. An electro-optical sensor array records holograms digitally and an algorithm numerically reconstructs and further quantifies the results using a personal computer/laptop/tablet etc.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: November 14, 2023
    Assignee: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Raj Kumar, Gaurav Dwivedi, Omendra Singh
  • Patent number: 11815668
    Abstract: A method of fabricating a visible spectrum optical component includes: providing a substrate; forming a resist layer over a surface of the substrate; patterning the resist layer to form a patterned resist layer defining openings exposing portions of the surface of the substrate; performing deposition to form a dielectric film over the patterned resist layer and over the exposed portions of the surface of the substrate, wherein a top surface of the dielectric film is above a top surface of the patterned resist layer; removing a top portion of the dielectric film to expose the top surface of the patterned resist layer and top surfaces of dielectric units within the openings of the patterned resist layer; and removing the patterned resist layer to retain the dielectric units over the substrate.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: November 14, 2023
    Assignees: PRESIDENT AND FELLOWS OF HARVARD COLLEGE, THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Robert C. Devlin, Mohammadreza Khorasaninejad, Federico Capasso, Hongkun Park, Alexander Arthur High
  • Patent number: 11808959
    Abstract: An optical element including a first substrate, a second substrate, a first optical film, a second optical film, and a spacer is provided. The first optical film is disposed on the first substrate and has a first surface and a plurality of first optical microstructures. The first optical microstructures are disposed on the first surface. The second optical film is disposed on the second substrate and has a second surface and a plurality of second optical microstructures. The second surface is opposite to the first surface. The second optical microstructures are disposed on the second surface. The orthogonal projection of the first optical microstructures on the first substrate does not overlap with the orthogonal projection of the second optical microstructures on the first substrate. The spacer is disposed between the first substrate and the second substrate. A wafer level optical module adopting the optical element is also provided.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: November 7, 2023
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chih-Sheng Chang, Meng-Ko Tsai, Teng Te Huang
  • Patent number: 11796769
    Abstract: A camera optical lens includes first to fifth lenses that are sequentially arranged from an object side to an image side. Each of the first lens, the third lens, and the fourth lens has a positive refractive power, and each of the second lens and the fifth lens has a negative refractive power. The camera optical lens satisfies: 0.50?f1/f?0.80; ?1.20?f2/f??0.70; 1.50?d8/d9?3.00; ?1.50?R3/R4??0.60; and 1.20?R7/R8?2.00, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and d8 denotes an on-axis distance from an image-side surface of the fourth lens to an object-side surface of the fifth lens. The camera optical lens can achieve high optical performance while satisfying design requirements for being ultra-thin and having a wide-angle and a large aperture.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: October 24, 2023
    Assignee: AAC Optics (Changzhou) Co., Ltd.
    Inventor: Rongbao Shi
  • Patent number: 11796818
    Abstract: An optical system comprises an optically transmissive substrate comprising a metasurface which comprises a grating comprising a plurality of unit cells. Each unit cell comprises a laterally-elongated first nanobeam having a first width; and a laterally-elongated second nanobeam spaced apart from the first nanobeam by a gap, the second nanobeam having a second width larger than the first width. A pitch of the unit cells is 10 nm to 1 ?m. The heights of the first and the second nanobeams are: 10 nm to 450 nm where a refractive index of the substrate is more than 3.3; and 10 nm to 1 ?m where the refractive index is 3.3 or less.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: October 24, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Dianmin Lin, Mauro Melli, Pierre St. Hilaire, Christophe Peroz, Evgeni Poliakov
  • Patent number: 11788887
    Abstract: A tunable notch filter for operation in reflection mode comprises an antenna layer positioned on a transmissive substrate and a mirror layer positioned on a support substrate. The antenna layer and the mirror layer are positioned on opposite sides of a gap and facing each other, the gap having a gap distance. The notch filter is tuned by adjusting the gap distance between the antenna layer and the mirror layer. Tuning the notch filter to a selected state can cause the filter to selectively attenuate the reflection of at least some electromagnetic radiation that is incident on the transmissive substrate and enters the notch filter.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: October 17, 2023
    Assignee: Nanohmics, Inc.
    Inventor: Chris W. Mann