Patents by Inventor Cheng-Chen Lin

Cheng-Chen Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12253654
    Abstract: An optical imaging 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 has positive refractive power. The second lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element has an object-side surface and an image-side surface being aspheric. The fifth lens element has an object-side surface and an image-side surface being aspheric. The sixth lens element has 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 includes at least one inflection point.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: March 18, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Hsin-Hsuan Huang
  • Patent number: 12181642
    Abstract: An image capturing 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 negative refractive power has an image-side surface being concave in a paraxial region thereof. The second and third lens elements have refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element with 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. The image capturing lens assembly has a total of six lens elements with refractive power.
    Type: Grant
    Filed: December 28, 2023
    Date of Patent: December 31, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Wei-Yu Chen
  • Publication number: 20240337815
    Abstract: A photographing lens assembly includes eight 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, a seventh lens element and an eighth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the eighth lens element has at least one critical point in an off-axis region thereof.
    Type: Application
    Filed: June 18, 2024
    Publication date: October 10, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen LIN, Yu-Tai TSENG, Wei-Yu CHEN
  • Patent number: 12055793
    Abstract: A photographing lens assembly includes eight 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, a seventh lens element and an eighth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the eighth lens element has at least one critical point in an off-axis region thereof.
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: August 6, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Yu-Tai Tseng, Wei-Yu Chen
  • Patent number: 12055727
    Abstract: An imaging lens assembly includes a plastic barrel and an imaging lens set. The plastic barrel includes an object-side aperture and a first annular surface. The imaging lens set includes a plurality of optical elements, wherein at least one of the optical elements is a plastic lens element, and the plastic lens element includes an effective optical portion, a peripheral portion, a second annular surface, and an object-side connecting surface. The peripheral portion is formed around the effective optical portion. The second annular surface is formed on an object-side surface of the plastic lens element and surrounds the effective optical portion. The object-side connecting surface is formed on the object-side surface of the plastic lens element and surrounds the effective optical portion, and the object-side connecting surface is connected with one of the optical elements disposed on an object side of the plastic lens element.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: August 6, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hsiang-Chi Tang, Cheng-Chen Lin, Ming-Ta Chou
  • Publication number: 20240151948
    Abstract: A photographing optical lens assembly includes, in order from an object side to an image side along an optical axis, 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 negative refractive power. The third lens element has an object-side surface being convex in a paraxial region thereof.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Inventors: Cheng-Chen LIN, Hsin-Hsuan HUANG, Shu-Yun YANG
  • Patent number: 11977274
    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. Each of the seven lens elements of the optical photographing lens assembly has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is concave in a paraxial region thereof. The object-side surface of the first lens element is aspheric and has at least one critical point in an off-axis region thereof.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: May 7, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Yu-Tai Tseng, Tzu-Chieh Kuo
  • Publication number: 20240134163
    Abstract: An image capturing 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 negative refractive power has an image-side surface being concave in a paraxial region thereof. The second and third lens elements have refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element with 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. The image capturing lens assembly has a total of six lens elements with refractive power.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 25, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen LIN, Wei-Yu CHEN
  • Patent number: 11914106
    Abstract: A photographing optical lens assembly includes, in order from an object side to an image side along an optical axis, 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 negative refractive power. The third lens element has an object-side surface being convex in a paraxial region thereof.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: February 27, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Hsin-Hsuan Huang, Shu-Yun Yang
  • Publication number: 20240061214
    Abstract: An imaging optical lens assembly includes nine lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element. Each of the nine lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The second lens element has negative refractive power. The image-side surface of the ninth lens element is concave in a paraxial region thereof and has at least one inflection point.
    Type: Application
    Filed: October 4, 2023
    Publication date: February 22, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen LIN, Hsin-Hsuan HUANG
  • Patent number: 11906714
    Abstract: A photographing optical lens assembly includes seven lens elements, which are, in order from an object side to an image side along an optical path: 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 third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element has an object-side surface being convex in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof and having at least one convex critical point in an off-axis region thereof.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: February 20, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Kuo-Jui Wang, Cheng-Chen Lin, Wei-Yu Chen
  • Patent number: 11899184
    Abstract: An image capturing 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 negative refractive power has an image-side surface being concave in a paraxial region thereof. The second and third lens elements have refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element with 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. The image capturing lens assembly has a total of six lens elements with refractive power.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: February 13, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Wei-Yu Chen
  • Publication number: 20240027880
    Abstract: An imaging lens assembly module has an optical axis, and includes a lens barrel and an optical element set. The lens barrel includes an object-side portion, a tubular portion and a tip-end minimal aperture. The object-side portion includes a first assembling surface. The tubular portion includes a plurality of second assembling surfaces. The optical element set includes at least one light blocking sheet and at least one optical lens element. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The optical lens element includes an optical effective portion and a peripheral portion. The object-side portion of the lens barrel includes a first reversing inclined surface gradually enlarged from the tip-end minimal aperture to the image side of the lens barrel, and the first reversing inclined surface is not contacted with the optical element set.
    Type: Application
    Filed: October 3, 2023
    Publication date: January 25, 2024
    Inventors: Kuan-Ming CHEN, Hsiang-Chi TANG, Lin-An CHANG, Cheng-Chen LIN, Ming-Ta CHOU
  • Publication number: 20230393373
    Abstract: A photographing lens assembly includes eight 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, a seventh lens element and an eighth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the eighth lens element has at least one critical point in an off-axis region thereof.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 7, 2023
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen LIN, Yu-Tai TSENG, Wei-Yu CHEN
  • Publication number: 20230384558
    Abstract: An imaging system lens assembly includes 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 in order from an object side to an image side along an optical path. Each of the six lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The fifth lens element has positive refractive power. The image-side surface of the fifth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element has at least one inflection point. A central thickness of the first lens element is a maximum among central thicknesses of all lens elements of the imaging system lens assembly.
    Type: Application
    Filed: August 10, 2022
    Publication date: November 30, 2023
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Yu Jui LIN, Cheng-Chen LIN, Chun-Che HSUEH, Hsin-Hsuan HUANG, I-Hsuan CHEN
  • Patent number: 11815791
    Abstract: An imaging lens assembly module has an optical axis, and includes a lens barrel and an optical element set. The lens barrel includes an object-side portion, a tubular portion and a tip-end minimal aperture. The object-side portion includes a first assembling surface. The tubular portion includes a plurality of second assembling surfaces. The optical element set includes at least one light blocking sheet and at least one optical lens element. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The optical lens element includes an optical effective portion and a peripheral portion. The object-side portion of the lens barrel includes a first reversing inclined surface gradually enlarged from the tip-end minimal aperture to the image side of the lens barrel, and the first reversing inclined surface is not contacted with the optical element set.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: November 14, 2023
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ming Chen, Hsiang-Chi Tang, Lin-An Chang, Cheng-Chen Lin, Ming-Ta Chou
  • Patent number: 11815661
    Abstract: An imaging optical lens assembly includes nine lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element. Each of the nine lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The second lens element has negative refractive power. The image-side surface of the ninth lens element is concave in a paraxial region thereof and has at least one inflection point.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 14, 2023
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Hsin-Hsuan Huang
  • Publication number: 20230350165
    Abstract: A photographing lens assembly includes six 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 and a sixth lens element. The second lens element has positive refractive power. The third lens element has an image-side surface being concave in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one inflection point.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Yen CHEN, Cheng-Chen LIN, Hsin-Hsuan HUANG
  • Patent number: 11774714
    Abstract: A photographing lens assembly includes eight 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, a seventh lens element and an eighth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the eighth lens element has at least one critical point in an off-axis region thereof.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: October 3, 2023
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Yu-Tai Tseng, Wei-Yu Chen
  • Patent number: 11740439
    Abstract: A photographing lens assembly includes six 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 and a sixth lens element. The second lens element has positive refractive power. The third lens element has an image-side surface being concave in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one inflection point.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: August 29, 2023
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Yen Chen, Cheng-Chen Lin, Hsin-Hsuan Huang