Patents Examined by Evelyn A. Lester
  • Patent number: 11029493
    Abstract: An imaging lens includes first to fifth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant optical parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: June 8, 2021
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Shih-Han Chen, Chung-Chih Chang, Yita Chiang
  • Patent number: 11029500
    Abstract: A lens module includes a lens barrel and a lens group having a first second lenses. An image side surface of a first barrel wall includes a first planar surface, a first oblique surface extending towards the optical axis and towards the image side, and a second planar surface. An object side surface of a peripheral portion of the first lens includes a third planar surface attached to the first planar surface and a second oblique surface attached to the first oblique surface. An image side surface of the peripheral portion of the first lens includes a fifth planar surface, a third oblique surface extending towards the optical axis and towards the image side, and a sixth planar surface. An object side surface of the second lens includes a seventh planar surface attached to the fifth planar surface and a fourth oblique surface paced apart from the third oblique surface.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 8, 2021
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventor: Hailong Wang
  • Patent number: 11016274
    Abstract: A fixed focal length lens includes, in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a positive refractive power and a third lens unit having a positive refractive power, the second lens unit and the third lens unit moving for focusing differently from each other to change a distance between each pair of adjacent lens units changes. The first lens unit includes, in order from the object side to the image side, a first lens having a negative refractive power and a second lens having a negative refractive power. A focal length of the fixed focal length lens in a case of focusing on an object at infinity, a focal length of the first lens unit, a focal length of the second lens unit and a focal length of the third lens unit are appropriately set.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: May 25, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akihiko Yuki, Shohei Kikuchi
  • Patent number: 11016275
    Abstract: A wide-angle lens 100 includes a first lens 10, a second lens 20, a third lens 30, a diaphragm 72, a fourth lens 40, and a fifth lens 50. The first lens 10 is a negative meniscus lens whose lens surface on an image side Lb is a concave curved surface. The second lens 20 is a negative lens whose lens surface on the image side Lb is a concave curved surface and whose lens surface on the object side La is convex curved surface. The third lens 30 is a positive lens whose lens surface on the image side Lb is a convex curved surface. The fourth lens 40 is a negative lens whose lens surface on the image side Lb is a concave curved surface. The fifth lens 50 is a biconvex lens. A refractive index n1 of the first lens 10 satisfies a conditional expression.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: May 25, 2021
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Yosuke Kanzaki
  • Patent number: 11009637
    Abstract: An optical stack including an oriented polymeric multilayer optical film and a non-birefringent optical filter is described. The oriented polymeric multilayer optical film has a first reflection band with a first band edge and the non-birefringent optical filter has a first blocking band. In some cases, the first blocking band contains the first band edge and the first blocking band provides a reduction in variation of a band edge of an overall blocking band of the optical stack.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 18, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John A. Wheatley, Guanglei Du, Gilles J. Benoit, Rolf W. Biernath, Christopher A. McLaughlin, Sherie A. Kristie
  • Patent number: 11009682
    Abstract: A photographing lens assembly includes, 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, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element, the third lens element and the fourth lens element have refractive power. The fifth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric, and at least one of the surfaces thereof has at least one inflection point thereon. The sixth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric, and at least one of the surfaces thereof has at least one inflection point.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 18, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Po-Lun Hsu, Tsung-Han Tsai, Hsin-Hsuan Huang
  • Patent number: 11002944
    Abstract: Provided is an optical system consisting of, in order from an object side to an image side, a front lens group (FLG), an aperture stop and a rear lens group (RLG), in which FLG includes at least one positive lens and at least one negative lens. A focal length of a positive lens Lp arranged closest to object side among the at least one positive lens, a focal length of a negative lens Ln arranged closest to image side among the at least one negative lens, a distance on an optical axis from an object-side lens surface of positive lens Lp to aperture stop, a distance on optical axis from an object-side lens surface of negative lens Ln to aperture stop, and a distance on optical axis from aperture stop to a lens surface closest to image side in RLG when focused at infinity are appropriately set.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: May 11, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masato Katayose
  • Patent number: 10996444
    Abstract: A photographing optical lens assembly includes seven lens elements, the seven lens elements being, 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, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element has negative refractive power. The second lens element has negative refractive power. The third lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element has an image-side surface being convex in a paraxial region thereof.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 4, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Shu-Yun Yang, Hsin-Hsuan Huang
  • Patent number: 10996430
    Abstract: An optical imaging lens including a first lens element, a second lens element, a third lens element, an aperture, a fourth lens element and a fifth lens element is provided. The first lens element is arranged to be a lens element of which refracting power being equal to 0 inverse millimeter (mm?1) in a first order from the object-side to the image-side. The second lens element is arranged to be a lens element having refracting power in a first order from the first lens element to the image-side. The third lens element is arranged to be a lens element having refracting power in a second order from the first lens element to the image-side. The fourth and fifth lens element are respectively arranged to be lens elements having refracting power in a first and a second order from the aperture to the image-side.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 4, 2021
    Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventors: Sheng-Wei Hsu, Pei-Chi Wang
  • Patent number: 10983372
    Abstract: An electro-optic modulator includes a doped semiconductor crystal having a crystallographic surface having an amplitude modulation orientation, a first metal electrode located on a first surface of the doped semiconductor crystal, a second metal electrode located on a second surface of the doped semiconductor crystal, and accumulation space charge regions located within surface regions of the doped semiconductor crystal that are proximal to the first metal electrode and the second metal electrode and including excess charge carriers of a same type as majority charge carriers of the doped semiconductor crystal.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: April 20, 2021
    Assignee: REDLEN TECHNOLOGIES, INC.
    Inventors: Francis Joseph Kumar, Saied Taherion, David Giles, Jason MacKenzie
  • Patent number: 10969564
    Abstract: Provided is a zoom lens including: a positive first unit; a negative second unit; a positive third unit; a positive fourth unit; a positive fifth unit; and a sixth unit, wherein the first unit is moved toward the object side for zooming from wide angle end to telephoto end, and an interval between each pair of adjacent units is changed for zooming, wherein the fifth unit is moved for focusing, and wherein a focal length at wide angle end, a focal length of the fifth unit, an F-number of the zoom lens at wide angle end, a total length at wide angle end, a distance from a lens surface on the object side of the fifth unit to an image plane at wide angle end at infinity, and a movement amount of the fifth unit for zooming from wide angle end to telephoto end at infinity are appropriately set.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: April 6, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Okada
  • Patent number: 10967794
    Abstract: A zoom lens system includes, in order from the object side to the image side, a first lens group having negative power and a second lens group having positive power. The first lens group includes at least two negative lenses. When zooming, one of the first lens group and the second lens group is fixed relative to the imaging surface, and the other moves along an optical axis to change an angle of view.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: April 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Tsutomu Iwashita
  • Patent number: 10962741
    Abstract: The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of plastic material, the third lens is made of glass material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: November 18, 2018
    Date of Patent: March 30, 2021
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Kenji Oinuma, Lei Zhang, Yanmei Wang, Yi Ji
  • Patent number: 10948701
    Abstract: A variable magnification optical system consists of, in order from an object side, a first optical system remaining stationary during changing magnification and a second optical system including a plurality of lens groups moving during changing magnification. The first optical system includes a first mirror and a second mirror having reflective surfaces arranged to face each other. The first mirror has a reflective surface concave toward the object side. The second mirror has a reflective surface convex toward the image side. An intermediate image is formed between the second mirror and the second optical system. Predetermined conditional expressions relating to the partial dispersion ratios of the lenses included in the second optical system are satisfied.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: March 16, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Michio Cho
  • Patent number: 10948696
    Abstract: Lens assemblies comprising, from an object side to an image side, a positive first lens element L1 with a first optical axis and a first lens width W1, a light folding element, a negative second lens element L2 and a plurality of additional lens elements L3-LN with a common second optical axis, and an image sensor having a sensor diagonal length (SDL), wherein the light folding element is configured to fold light from the first optical axis to the second optical axis, wherein the folded lens has an optical height OH, wherein SDL/OH>0.7 and wherein OH/W1<1.1.
    Type: Grant
    Filed: July 22, 2018
    Date of Patent: March 16, 2021
    Assignee: Corephotonics Ltd.
    Inventors: Gal Shabtay, Ephraim Goldenberg, Michael Dror, Roy Rudnick, Gil Bachar
  • Patent number: 10935761
    Abstract: Large aperture compact lens and a camera design using the lens are described. The lens comprises from object to image, three lens groups with a first lens group having a negative or positive power and comprising 3-4 lens elements, a second lens group having positive power and 3-4 elements including an aperture stop, at least one cemented doublet and one positive power lens made from athermic optical material, and a third lens group comprising 1-3 elements.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: March 2, 2021
    Inventor: Alex Ning
  • Patent number: 10935766
    Abstract: An optical photographing lens assembly includes seven 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, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element has negative refractive power. The sixth lens element has positive refractive power. At least one of an object-side surface and an image-side surface of the seventh lens element includes at least one inflection point.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 2, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Po-Lun Hsu, Shu-Yun Yang
  • Patent number: 10935764
    Abstract: The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 2, 2021
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Kenji Oinuma, Lei Zhang, Yanmei Wang, Shuaijun Kuang
  • Patent number: 10935763
    Abstract: The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 2, 2021
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Kenji Oinuma, Lei Zhang, Yanmei Wang, Shuaijun Kuang
  • Patent number: 10928610
    Abstract: A photographing system includes, 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, a fifth lens element, a sixth lens element and a seventh lens element with refractive power. The first lens element with positive refractive power has an object-side surface being convex in paraxial region. The second lens element with refractive power has an image-side surface being concave in paraxial region. The third, fourth and fifth lens elements all have refractive powers. The sixth lens element with refractive power has an image-side surface being concave in paraxial region, wherein the image-side surface has at least one convex shape in off-axis region, and both of two surfaces are aspheric. The seventh lens element with refractive power has an object-side surface being concave in paraxial region, and both of two surfaces are aspheric.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: February 23, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen