Patents Assigned to LARGAN PRECISION., LTD.
  • Patent number: 10324272
    Abstract: A photographing optical 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, a sixth lens element and a seventh lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. The sixth lens element has at least one of an object-side surface and an image-side surface being aspheric, wherein at least one of the object-side surface and the image-side surface of the sixth lens element comprises at least one inflection point. The seventh lens element has an object-side surface and an image-side surface being both aspheric.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 18, 2019
    Assignee: LARGAN PRECISION., LTD.
    Inventor: Hsin-Hsuan Huang
  • Patent number: 9354426
    Abstract: An optical image lens 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 and a sixth lens element. The first lens element has positive refractive power. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has a convex object-side surface, wherein at least one of two surfaces of the fifth lens element is aspheric. The sixth lens element with negative refractive power has a concave image-side surface, wherein at least one of two surfaces of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on at least one of the surfaces thereof.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: May 31, 2016
    Assignee: LARGAN PRECISION., LTD.
    Inventors: Chun-Shan Chen, Tsung-Han Tsai, Ming-Ta Chou