Patents Examined by Tamara Y Washington
  • Patent number: 11906718
    Abstract: The invention provides a wide-aperture spherical primary mirror off-axis afocal optical system, including a primary mirror, a secondary mirror and an aberration compensation mirror group. The primary mirror is a spherical reflector, the secondary mirror are higher-order aspherical reflectors. The primary mirror and the secondary mirror form an off-axis two-mirror system to compress the beam aperture. The aberration compensation mirror group is a coaxial reflective system that is used off-axis. The aberration compensation mirror group has focal power to produce compensation aberrations. The incident beam passes through and is reflected by the primary mirror and secondary mirror sequentially and enters the aberration compensation mirror group thereafter.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: February 20, 2024
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Xinhua Chen, Yueping Lu, Zhicheng Zhao, Qiao Pan, Weimin Shen
  • Patent number: 11906810
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism is disposed on an electronic apparatus. The optical element driving mechanism includes a first movable portion, a fixed portion, a first driving assembly, a circuit assembly, and a first position sensing assembly. The first movable portion is used for connecting to a first optical element. The first optical element is used for corresponding to light. The first movable portion is movable relative to the fixed portion. The first driving assembly is used for driving the first movable portion to move relative to the fixed portion. The circuit assembly is used for electrically connected to the electronic apparatus. The first position sensing assembly is used for detecting the movement of the first movable portion relative to the fixed portion.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 20, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Ying-Jen Wang, Ya-Hsiu Wu, Chen-Chi Kuo, Chao-Chang Hu, Yi-Ho Chen, Che-Wei Chang, Ko-Lun Chao, Sin-Jhong Song
  • Patent number: 11899187
    Abstract: There is provided a compact imaging lens configured to properly correct aberrations. The imaging lens includes, in order from an object side to an image side, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with positive refractive power, a fifth lens L5, a sixth lens L6, a seventh lens L7 with positive refractive power, and an eighth lens L8 with negative refractive power. The eighth lens L8 is formed in a shape of a meniscus lens in a paraxial region, and has an aspheric image-side surface having at least one inflection point. In addition, the following conditional expressions are satisfied: ?5.00<f2/f<?2.00 10.00<f4/f<25.00 where f: a focal length of the overall optical system of the imaging lens, f2: a focal length of the second lens, and f4: a focal length of the fourth lens.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: February 13, 2024
    Assignee: TOKYO VISIONARY OPTICS CO., LTD.
    Inventor: Hitoshi Hirano
  • Patent number: 11899274
    Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a first movable assembly and a first driving assembly. The first movable assembly is configured to connect a first optical element, and the first movable assembly is movable relative to the fixed assembly. The first driving assembly is configured to drive the first movable assembly to move relative to the fixed assembly in a first dimension.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: February 13, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Chih-Wen Chiang, Chien-Yu Kao
  • Patent number: 11899270
    Abstract: A voice coil motor device includes a fixed component and a movable component. The movable component holds a lens. The movable component is accommodated in the fixed component. The fixed component includes a housing and a base. The housing defines a first hole and includes first side walls. The base defines a second hole. Centers of the first hole and the second hole are on an optical axis. The movable component is accommodated in the housing. The first hole receives the lens. One end of the movable component is received in the second hole of the base. The first side walls of the housing define a plurality of positioning holes, and the base includes a plurality of positioning posts. Each of the positioning posts is embedded in a corresponding one of the positioning holes.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: February 13, 2024
    Assignee: TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD.
    Inventors: Shin-Wen Chen, Sheng-Jie Ding, Jing-Wei Li, Jian-Chao Song
  • Patent number: 11886032
    Abstract: A camera driving module includes: a base including a central opening; a casing disposed on the base and including an opening hole corresponding to the central opening; a lens unit movably disposed on the casing; and a focus driving part. The focus driving part includes a carrier, an AF coil element, at least two permanent magnets and a Hall element. The carrier is disposed on the lens unit and movable in a direction parallel to an optical axis. The AF coil element is fixed to the base and faces toward the carrier. The permanent magnets are fixed on one side of the carrier facing toward the base and disposed opposite to each other about the optical axis. The Hall element faces toward a corresponding surface of one of the permanent magnets. The AF coil element and the corresponding surfaces are arranged in the direction parallel to the optical axis.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: January 30, 2024
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Te-Sheng Tseng, Ming-Ta Chou, Wen-Hung Hsu
  • Patent number: 11880048
    Abstract: An imaging lens assembly includes five lens elements, which are, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element has positive refractive power. The fourth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, wherein the two surfaces of the fourth lens element are both aspheric. The fifth lens element having an image-side surface being concave in a paraxial region thereof, wherein two surfaces of the fifth lens element are both aspheric, and the image-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: January 23, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Po-Lun Hsu, Wei-Yu Chen
  • Patent number: 11880127
    Abstract: A lens drive device is provided with: a lens holder for holding a lens; an ultrasonic motor configured to move the lens holder in a direction of an optical axis; and a support part configured to support the lens holder in a state where the lens holder is urged in a direction orthogonal to the optical axis and such that the lens holder is capable of moving in the direction of the optical axis. The support part includes two pairs of support portions which are disposed respectively on two straight lines along an urging direction and parallel to each other such that the support portions of each pair holds the lend holder therebetween.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 23, 2024
    Assignee: Mitsumi Electric Co., Ltd.
    Inventor: Masayoshi Sugawara
  • Patent number: 11874520
    Abstract: An optical element driving mechanism is provided, including a base, a holder movably coupled to the base for holding an optical element, a casing, a frame, a driving assembly, and an adhering member. The casing has a top wall and a plurality of side walls extending from the edge of the top wall along an optical axis of the optical element, and the top wall is closer to a light-incident end than the base. The frame is disposed on the top wall and has a frame protrusion extending toward the base. The driving assembly is configured to drive the holder to move relative to the base, and an accommodating space is formed between the base, the frame and the casing. The adhering member is disposed in the accommodating space and configured to directly adhere to the base, the frame, the casing, and the driving assembly.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: January 16, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Fu-Yuan Wu, Kun-Shih Lin, Yu-Huai Liao, Yu-Cheng Lin, Yen-Cheng Chen
  • Patent number: 11867987
    Abstract: A heterodyne phase-controlled beam-combiner system includes a laser source, a first beam splitter, a plurality of phase modulators, a tiled array and an optical mixer. The laser source generates a light beam, and the first beam splitter splits the light beam into multiple beamlets. A phase modulator tags each beamlet with an arbitrary phase dither signal corresponding to an arbitrary phase setpoint or offset, and a tiled array, including a number of lenslets, combines the tagged beamlets and directs the combined light to a second beam splitter. The optical mixer generates a heterodyne light including tagging information. A first output light of the second beam splitter is a target light directed to a target, and the arbitrary phase offset enables achieving a nonflat phase profile for beamlets to obtain the desired on-axis far-field intensity of the target light.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: January 9, 2024
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Bruce G. Tiemann, Philip Gatt
  • Patent number: 11860512
    Abstract: A camera module includes a carrier supported on a housing and movable in an optical axis direction, at least one frame supported on the carrier and movable, relative to the carrier, in at least one direction perpendicular to the optical axis direction, and a lens module supported on the frame. The frame is supported on the carrier such that attractive force acts in the at least one direction perpendicular to the optical axis direction.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: January 2, 2024
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Bo Sung Seo, Hong Joo Lee, Young Bok Yoon, Jung Seok Lee
  • Patent number: 11852839
    Abstract: A digital light path length modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths with different path lengths, such that the light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: December 26, 2023
    Assignee: Avegant Corp.
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Patent number: 11852890
    Abstract: A near-eye display system comprising an image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: December 26, 2023
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Patent number: 11846768
    Abstract: Exemplary reflective display components are described. These reflective display components may include a microwell layer having a first and a second quantum dot well that each include a plurality of nanoparticles configured to emit a color of light. The microwell layer further has a third well. The reflective display components further include an electrowetting layer positioned above the microwell layer, where the electrowetting layer is operable to independently adjust an intensity of light emitted from the first and second quantum dot wells and the third well in the microwell layer.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: December 19, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Robert Anthony Nordsell, Arvinder M. Chadha
  • Patent number: 11846826
    Abstract: An imaging lens assembly module includes an imaging lens element set, a lens carrier and a light blocking structure. The imaging lens element set has an optical axis. At least one lens element of the lens elements is disposed in the lens carrier. The light blocking structure includes a light blocking opening. The optical axis passes through the light blocking opening, and the light blocking opening includes at least two arc portions and a shrinking portion. Each of the arc portions has a first curvature radius for defining a maximum diameter of the light blocking opening. The shrinking portion is connected to the arc portions for forming the light blocking opening into a non-circular shape. The shrinking portion includes at least one protruding arc which extends and shrinks gradually from the shrinking portion to the optical axis, and the protruding arc has a second curvature radius.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: December 19, 2023
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Lin-An Chang, Ming-Ta Chou, Shu-Yun Yang, Cheng-Feng Lin
  • Patent number: 11846835
    Abstract: A display apparatus includes a reflective layer with reflective material. One or more stacks of additional layers are provided on the reflective layer. Each stack has an optically switchable layer. A plurality of switching elements are located on a side of the reflective layer opposite to the one or more stacks or form part of the reflective layer. Each switching element is operable to apply heating to a switchable portion of the optically switchable layer and thereby change an appearance of the switchable portion when viewed from a viewing side of the display apparatus. The apparatus applies the heating by driving an electrical current through the switching element to generate Joule heating in the switching element. The electrical current flows in an electrical circuit including a portion of the reflective layer.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 19, 2023
    Assignee: E Ink Corporation
    Inventors: Harish Bhaskaran, Peiman Hosseini, Ben Broughton
  • Patent number: 11841499
    Abstract: An object is to provide an optical element and an imaging lens that reproduce clear images by restraining ghosting, flare, and/or similar occurrences caused by unwanted light reflected by the outer circumference surface of an edge of the optical element. An optical element 100 includes an optical effective portion 101 and an edge 102. The edge 102 is located around the optical effective portion 101 and has an outer circumference surface 103. The outer circumference surface 103 includes roughened portions 200. An imaging lens uses the optical element 100.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: December 12, 2023
    Assignee: TOKYO VISIONARY OPTICS CO., LTD.
    Inventors: Tatsuya Oouchi, Shigeru Endo
  • Patent number: 11835785
    Abstract: An optical apparatus includes holders configured to hold on a base member a third holding member that holds a third optical element among a plurality of optical elements, and provided at three locations in a circumferential direction around an optical axis when viewed from an optical axis direction, or a holder configured to holding the base member on another member. Where first, second, and third axes pass through the optical axis and holders at the three locations, a first driver and a first guide member are disposed in a first area between the first axis and the second axis, and a second driver and a second guide member are disposed in a second area between the first axis and the third axis. The first driver and second driver are disposed in two areas that at least partially overlap each other in the optical axis direction.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: December 5, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshihiro Okuda
  • Patent number: 11835788
    Abstract: A camera module is provided. The camera module includes a housing; a focus adjustment unit disposed in the housing; and a shake correction unit disposed in the housing, wherein the housing includes a first shake correction driving magnet and second shake correction driving magnet that provide a driving force to move the shake correction unit in a first direction intersecting an optical axis and a second direction intersecting the optical axis and the first direction, and a focus adjustment driving coil providing a driving force to move the focus adjustment unit in the optical axis direction. The housing further includes first to third yokes respectively disposed on a surface of the first magnet, a surface of the second magnet, and a surface of the focus adjustment driving coil.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: December 5, 2023
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Bo Sung Seo, Jung Seok Lee, Young Bok Yoon, Nam Ki Park, Byung Hoon Lee
  • Patent number: 11835701
    Abstract: In a method for the examination of a sample the sample is illuminated in a sample plane along a sample line with an illuminating light beam. The sample is acted upon by a depletion or switching light beam, which overlaps in the sample plane in an overlap region at least partially spatially with the illuminating light beam and which has at least one wavelength suitable for depletion of the sample. Part of fluorescent light emanating from the sample plane is detected as detection light. The fluorescent light originating from outside a first subregion and a second subregion is at least partially suppressed and not detected.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: December 5, 2023
    Assignee: LEICA MICROSYSTEMS CMS GMBH
    Inventors: Werner Knebel, Florian Fahrbach