Patents Examined by Euncha P. Cherry
  • Patent number: 11226434
    Abstract: A coating for an optical article, such as a lens, includes a bottom coating having at least one hydrophilic resin binder and at least one surfactant, forming an anti-fogging layer, and a top coating overlying the bottom coating, forming an anti-reflective layer. The top coating includes nanopores, which may be less than 150 nm in size.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 18, 2022
    Assignee: Honeywell International Inc.
    Inventors: Shaopeng Zhu, Jon Nebo, Philip M. Johnson
  • Patent number: 11215816
    Abstract: A beam control apparatus consists of an electromagnetic field control component, which has a spherical cavity encircled by a transparent spherical shell, and a beam directing component, which is spherical in shape and located in the spherical cavity. The two components can rotate relative to each other. A clearance between the two components could be filled with lubricant. The beam directing component has a magnetic moment or an electric dipole moment. A controller controls a magnetic field or an electric field in the spherical cavity of the electromagnetic field control component to exert a torque on the beam directing component to control a direction of the beam directing component, thereby controlling a direction of an emergent beam. The present invention is a new terminal technology for free space optical communications, laser scanning, unmanned driving, laser beam driving and location identification.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: January 4, 2022
    Inventor: Weike Xu
  • Patent number: 11215805
    Abstract: A multi-photon optical probe includes a probe housing, a lateral scanning stage coupled to a lateral mirror assembly and a remote axial scanning stage coupled to an axial mirror assembly. The lateral scanning stage is adapted to scan output laser energy over a planar scan area of the sample by moving the lateral mirror assembly. The axial scanning stage is adapted to scan the output laser energy over a vertical depth range of the sample, which, combined with the planar scan area, forms a 3-dimensional volume. A controller operates in conjunction with a number of remote actuating legs coupled to the axial mirror assembly in order to provide level imaging plane which in turn provides for a clear scanned image.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: January 4, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Kenn Oldham, Jongsoo Choi, Xiyu Duan, Thomas D. Wang, Haijun Li
  • Patent number: 11213188
    Abstract: An optical fiber scanning device includes a housing, an optical fiber configured to emit light, a magnet disposed on the optical fiber, four drive coils configured to drive the optical fiber by applying to the magnet a magnetic field generated by a received drive power signal, and four detection coils configured to output an induced electromotive force signal corresponding to variation of a magnetic field, wherein the drive power signal is controlled based on the induced electromotive force signal, and four coil assemblies each including any one of the drive coils and any one of the detection coils are disposed at rotationally symmetrical positions so as to interpose the optical fiber among the four coil assemblies.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: January 4, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Hiroshi Tosaka, Masanori Ogata
  • Patent number: 11209641
    Abstract: Embodiments of the disclosure provide a micromachined mirror assembly having a mirror-base layer, a first reflective layer on a top surface of the mirror-base layer, and a second reflective layer on a bottom surface of the mirror-base layer. In an example, the first reflective layer is reflective to incident light of the micromachined mirror assembly, and the first reflective layer and the second reflective layer are made of a same material and have same dimensions.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: December 28, 2021
    Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.
    Inventors: Sae Won Lee, Youmin Wang, Qin Zhou
  • Patent number: 11197530
    Abstract: Disclosed is an invention in the field of cosmetic mirrors. The present invention particularly relates to a portable makeup mirror device comprising a first mirror, a second mirror, and a third mirror, each of varying mirror magnification factors, being supported by a freestanding frame, said makeup mirror device having the first mirror and second mirror pivoting and upwardly removed from the mirror housing in opposite directions, and once fully deployed are located on opposing sides of the mirror housing central aperture showing a third mirror fixed within the mirror housing. The freestanding frame has a base and a support member having a plurality of pivots for adjusting the base and mirror assembly.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 14, 2021
    Assignee: Timeless Makeup Mirror, LLC
    Inventors: Rebecca Long, Glen Clifton, Curt Stewart
  • Patent number: 11199710
    Abstract: A beam scanner of a projector-based near-eye display includes a prismatic element with a reflective polarizer and a quarter-wave waveplate (QWP). The beam-folding prismatic element receives a polarized light beam from a light source and couples the beam to a tiltable reflector, e.g. a 2D tiltable MEMS reflector, for angular scanning the beam. The light beam impinging onto the tiltable reflector is separated from the light beam reflected from the tiltable reflector by polarization. The polarization-based separation is achieved by causing the light beam to propagate through the QWP before and after impinging onto the tiltable reflector. Upon double propagation of the light beam through the QWP, the beam changes its polarization to an orthogonal polarization, which enables its separation from the impinging beam. The beam scanner may receive multiple light beams from multiple light sources. A projector and a near-eye display based on such beam scanners are also disclosed.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: December 14, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Brian Wheelwright, Weichuan Gao, Stephen James McNally
  • Patent number: 11199697
    Abstract: A scanning projector for a display apparatus includes a first scanning reflector configured to steer a light beam in a first plane, a second scanning reflector configured to steer the light beam received from the first scanning reflector in a second plane, and beam relay optics configured to relay a first pupil defined at the first scanning reflector to a second pupil defined at the second scanning reflector, and to relay the second pupil to an output pupil of the scanning projector. The beam relay optics may include a concave reflector and a polarization beam splitter coupled to a scanning reflector in a triple pass configuration.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 14, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Weichuan Gao, Brian Wheelwright, Maxwell Parsons, Daniel Guenther Greif, Scott Charles McEldowney
  • Patent number: 11199695
    Abstract: An actuator device includes: a support portion; a movable portion; a first connection portion connecting the movable portion to the support portion on a first axis so that the movable portion is swingable around the first axis; and a first wiring provided on the first connection portion. The first wiring includes a first main body formed of a metal material having a Vickers hardness of 50 HV or more. The first main body includes a first surface facing the first connection portion and a second surface other than the first surface. The second surface has a shape in which a curvature is continuous over the entire second surface in a cross-section perpendicular to an extension direction of the first wiring.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: December 14, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Daiki Suzuki, Yuki Morinaga, Go Tanaka
  • Patent number: 11187579
    Abstract: In an optical device, an elastic support unit includes a pair of levers which face in a second direction perpendicular to a first direction, a pair of first torsion support portions which are connected between the levers and the base, a pair of second torsion support portions which are connected between the pair of levers and the movable unit, and a first link member that bridges the levers. The levers and the first link member define a light passage opening. Each of connection positions between the levers and the first torsion support portions is located on a side opposite to the movable unit with respect to the center of the light passage opening in a third direction perpendicular to the first direction and the second direction. A maximum width of the light passage opening in the second direction is defined by a gap between the levers in the second direction.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: November 30, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Tomofumi Suzuki, Kyosuke Kotani, Tatsuya Sugimoto
  • Patent number: 11187872
    Abstract: In an optical device, a movable unit includes a main body portion, a frame portion that surrounds the main body portion with a predetermined interval from the main body portion, and a plurality of connection portions which connect the main body portion and the frame portion to each other. A width of each of the connection portions is larger than an interval between the main body portion and the frame portion, and is smaller than a distance from a connection position with each of the connection portions in the frame portion to any of a connection position with each of a pair of first torsion support portions and a connection position with each of a pair of second torsion support portions.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: November 30, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Tatsuya Sugimoto, Tomofumi Suzuki, Kyosuke Kotani
  • Patent number: 11180360
    Abstract: An equine safety device for reducing risk of a vehicle-horse collision includes a set of safety reflectors. Each safety reflector is selectively couplable to at least one of hair of a tail of a horse and hair of a forelock of the horse. The set of safety reflectors is configured to enhance visibility of the horse to an operator of vehicle via light from headlights of the vehicle being reflected back to the operator.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: November 23, 2021
    Inventor: Susan Robinson
  • Patent number: 11181734
    Abstract: Embodiments of the disclosure provide micromachined mirror assemblies and hybrid driving methods thereof. In one example, a micromachined mirror assembly includes a base and an array of micro mirrors affixed on the base. The base is configured to tilt around a base tilting axis. Each micro mirror in the array of micro mirrors is configured to tilt around a respective mirror tilting axis. Each of the mirror tilting axes is parallel to one another and is nonparallel to the base tilting axis.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 23, 2021
    Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.
    Inventors: Qin Zhou, Youmin Wang
  • Patent number: 11175493
    Abstract: A camera module includes a lens base, a lens group, and a switching mechanism. The lens base defines a through hole. The lens group is received within the through hole. The switching mechanism includes a switching base, an optical path conversion member, and a driving member. The switching base is mounted on the lens base and defines a light guide cavity communicating with the through hole. The switching base defines a front aperture and a rear aperture. The front aperture and the rear aperture communicate with the light guide cavity. The optical path conversion member includes a reflective surface. The driving member is mounted within the light guide cavity. The driving member drives the optical light conversion member to rotate to cause the reflective surface to reflect light entering through the front aperture or the rear aperture to the lens group.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: November 16, 2021
    Assignee: TRIPLE WIN TECHNOLOGY (SHENZHEN) CO. LTD.
    Inventors: Sheng-Jie Ding, Shin-Wen Chen, Jing-Wei Li, Jian-Chao Song, Shuai-Peng Li
  • Patent number: 11169359
    Abstract: For the purposes of positioning a component part, provision is made in an optical system for a stray magnetic field to be detected via a sensor device and for a correction signal for compensating the effect of the stray magnetic field on the positioning of the component part to be ascertained.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 9, 2021
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Pascal Marsollek, Stefan Hembacher
  • Patent number: 11169372
    Abstract: A light scanning apparatus includes a light source configured to output laser light, and a mirror configured to reflect the laser light from the light source. The light scanning apparatus includes a mirror driving unit configured to resonantly drive the mirror in a first direction and non-resonantly drive the mirror in a second direction, the second direction being perpendicular to the first direction. The light scanning apparatus includes a first sensor configured to output a signal in accordance with a first deflection angle at which the mirror is oriented with respect to the first direction. The light scanning apparatus includes a second sensor configured to output a signal in accordance with a second deflection angle at which the mirror is oriented with respect to the second direction.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: November 9, 2021
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventor: Yuji Kimura
  • Patent number: 11169371
    Abstract: A scanning device includes an MEMS mirror mechanism that swings a mirror with respect to a first axial line as a central line and swings the mirror with respect to a second axial line as a central line, and a control unit that generates a first drive signal for swinging the mirror with respect to the first axial line as a central line and a second drive signal for swinging the mirror with respect to the second axial line as a central line. In a lighting-on period in which a light source emits laser light in one swing of the mirror with respect to the second axial line as a central line, the control unit generates the first drive signal and the second drive signal by repeating a process of generating N pieces (N is an integer of two or greater) of second signal elements which respectively constitute the second drive signal with respect to a first signal element in a ½ cycle period in the first drive signal.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 9, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Naoto Sakurai, Makoto Nozaki
  • Patent number: 11163152
    Abstract: An actuator element of a MEMS device on a substrate is provided to create large, out-of-plane deflection. The actuator element includes a metallic layer having a first portion contacting the substrate and a second portion having an end proximal to the first portion. A distal end is cantilevered over the substrate. A first insulating layer contacts the metallic layer on a bottom contacting surface of the second cantilevered portion from the proximal to the distal end. A second insulating layer contacts the metallic layer on a portion of a top contacting surface at the distal end. The second portion of the metallic layer is prestressed. A coefficient of thermal expansion of the first and second insulating layers is different than a coefficient of thermal expansion of the metallic layer. And, a Young's modulus of the first and second insulating layer is different than a Young's modulus of the metallic layer.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 2, 2021
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: LaVern A Starman, John P K Walton, David Torres Reyes
  • Patent number: 11150439
    Abstract: An optomechanical device having an interface that is mounted to another interface wherein the two interfaces are made of materials having the same or similar coefficients of thermal expansion and within the optomechanical device is an interface that is designed to compensate for the second mechanical component that is made of materials having the same or similar coefficients of thermal expansion as the optic or photonic device or instrument being held or controlled altogether with a fully constrained set of slip planes making for an optical mechanical device consisting of two or more materials that have coefficients of thermal expansion that are suitably matched to the materials it is being mounted to and the materials it is holding or controlling.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: October 19, 2021
    Assignee: Thorlabs, Inc.
    Inventor: Brett D'Alessio
  • Patent number: 11150464
    Abstract: An optical scanning device includes a mirror part having a mirror surface configured to reflect light, N support cantilevers supporting the mirror part swingably, N drive cantilevers, and a plurality of driving piezoelectric elements secured on N drive cantilevers. The mirror part precesses by setting the frequency of AC voltage applied to each of a plurality of piezoelectric elements to a determined common value and setting the phase of AC voltage applied to each of a plurality of piezoelectric elements to a value determined according to the position of each piezoelectric element.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 19, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshiaki Hirata, Nobuaki Konno, Takahiko Ito, Kozo Ishida, Yoshitaka Kajiyama