Patents by Inventor Yu-Tai TSENG

Yu-Tai TSENG 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).

  • Publication number: 20220283408
    Abstract: An optical imaging lens system includes ten 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, a ninth lens element and a tenth lens element. Each of the ten lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has positive refractive power. The image-side surface of the tenth lens element is concave in a paraxial region thereof, and the image-side surface of the tenth lens element has at least one inflection point.
    Type: Application
    Filed: July 22, 2021
    Publication date: September 8, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Yu-Tai TSENG, Hsin-Hsuan HUANG, Meng-Kuan CHO
  • Publication number: 20220244500
    Abstract: An optical imaging system includes ten 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, a ninth lens element and a tenth lens element. Each of the ten lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has negative refractive power. The tenth lens element has negative refractive power, and at least one of the object-side surface and the image-side surface of the tenth lens element has at least one inflection point.
    Type: Application
    Filed: June 25, 2021
    Publication date: August 4, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Yu-Tai TSENG, Meng-Kuan CHO, Hsin-Hsuan HUANG
  • Publication number: 20220229271
    Abstract: A photographing lens assembly includes five lens elements, 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 with positive refractive power has an object-side surface being convex in a paraxial region. The second lens element has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface being convex in a paraxial region. The fourth lens element has an object-side surface being concave in a paraxial region, wherein two surfaces thereof are both aspheric. The fifth lens element has an object-side surface and an image-side surface being both aspheric. At least one surface of the lens elements has at least one inflection point.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 21, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Yu-Tai TSENG, Tung-Yi HSIEH, Hsin-Hsuan HUANG
  • Patent number: 11372216
    Abstract: An imaging optical 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 negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has positive refractive power. The fifth lens element has negative refractive power. The sixth lens element has positive refractive power. The imaging optical lens system has a total of six lens elements.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: June 28, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ming Chen, Yu-Tai Tseng, Hsin-Hsuan Huang, Shu-Yun Yang
  • Publication number: 20220196973
    Abstract: An optical imaging system includes four 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 and a fourth lens element. Each of the four lens elements of the optical imaging system 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 and has at least one convex shape in an off-axis region thereof. The object-side surface of the first lens element is aspheric. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The optical imaging system has a total of four lens elements.
    Type: Application
    Filed: March 11, 2022
    Publication date: June 23, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Yu-Tai TSENG, Hsin-Hsuan HUANG
  • Patent number: 11327275
    Abstract: A photographing lens assembly includes five lens elements, 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 with positive refractive power has an object-side surface being convex in a paraxial region. The second lens element has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface being convex in a paraxial region. The fourth lens element has an object-side surface being concave in a paraxial region, wherein two surfaces thereof are both aspheric. The fifth lens element has an object-side surface and an image-side surface being both aspheric. At least one surface of the lens elements has at least one inflection point.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 10, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Yu-Tai Tseng, Tung-Yi Hsieh, Hsin-Hsuan Huang
  • Patent number: 11307385
    Abstract: An optical imaging system includes four 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 and a fourth lens element. Each of the four lens elements of the optical imaging system 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 and has at least one convex shape in an off-axis region thereof. The object-side surface of the first lens element is aspheric. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The optical imaging system has a total of four lens elements.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: April 19, 2022
    Assignee: LARGAN PRECISION CO., LTD
    Inventors: Yu-Tai Tseng, Hsin-Hsuan Huang
  • Publication number: 20220091395
    Abstract: An electronic device includes at least two image capturing units which face the same side. The at least two image capturing units include a first image capturing unit and a second image capturing unit. The first image capturing unit includes an optical image system and a first image sensor. The optical image system includes a first lens element and an image surface. The first image sensor is disposed on the image surface of the optical image system thereof and has a first resolution of at least 60 megapixels. The second image capturing unit includes an optical image system and a second image sensor. The optical image system includes a first lens element and an image surface. The second image sensor is disposed on the image surface of the optical image system thereof and has a second resolution of at least 40 megapixels.
    Type: Application
    Filed: July 22, 2021
    Publication date: March 24, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Hsin-Hsuan HUANG, Kuan-Ting YEH, Kuo-Jui WANG, Yu-Tai TSENG
  • Patent number: 11249282
    Abstract: A photographing optical lens assembly includes seven lens elements, the seven lens elements 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, wherein the first lens element has positive refractive power, the fifth lens element with negative refractive power has image-side surface being concave in a paraxial region thereof, the sixth lens element has an image-side surface being convex in a paraxial region thereof, and the seventh lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the seventh lens element includes at least one convex critical point in an off-axis region thereof.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 15, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Chun-Yen Chen, Yu-Tai Tseng, Kuan-Ting Yeh, Wei-Yu Chen
  • Patent number: 11226472
    Abstract: An optical imaging module includes six lens elements, the six 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 and a sixth lens element. The first lens element has negative refractive power. The second lens element has an image-side surface being concave. The third lens element has an image-side surface being convex. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave and an image-side surface being convex. The sixth lens element has an image-side surface being concave, wherein an object-side surface and the image-side surface of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one inflection point.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: January 18, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Chun-Yen Chen, Yu-Tai Tseng, Kuan-Ting Yeh, Hsin-Hsuan Huang
  • Publication number: 20210396959
    Abstract: An imaging apparatus includes a photographing optical lens assembly and an image sensor. The photographing optical lens assembly includes a plurality of lens elements. The plurality of lens elements includes, in order from an object side to an image side, a first lens element, a second lens element and a last lens element. Each of the lens elements has an object-side surface facing the object side and an image-side surface facing the image side. At least one of the lens elements is plastic and at least one of the lens elements has at least one inflection point. There is at least one variable axial distance between adjacent lens elements thereof.
    Type: Application
    Filed: November 4, 2020
    Publication date: December 23, 2021
    Inventors: YU-TAI TSENG, HSIN-HSUAN HUANG
  • Publication number: 20210373298
    Abstract: An optical lens assembly includes seven lens elements which are, in order from object side to image side: first lens element, second lens element, third lens element, fourth lens element, fifth lens element, sixth lens element and seventh lens element. The first lens element has object-side surface having at least one convex shape in off-axis region thereof. The second lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The third lens element has image-side surface being convex in paraxial region thereof. The sixth lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The seventh lens element has image-side surface being concave in paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in off-axis region thereof. The optical lens assembly has a total of seven lens elements.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Applicant: LARGAN PRECISION CO.,LTD.
    Inventors: Yu-Tai TSENG, Chun-Che HSUEH, Hung-Shuo CHEN, Wei-Yu CHEN
  • Publication number: 20210356699
    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: July 29, 2021
    Publication date: November 18, 2021
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen LIN, Yu-Tai TSENG, Wei-Yu CHEN
  • Patent number: 11156803
    Abstract: An imaging optical system 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. 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. At least one lens element of the imaging optical system has at least one aspheric surface having at least one inflection point.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 26, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Che Hsueh, Hung-Shuo Chen, Yu-Tai Tseng, Tzu-Chieh Kuo
  • Patent number: 11125978
    Abstract: An optical lens assembly includes seven lens elements which are, in order from object side to image side: first lens element, second lens element, third lens element, fourth lens element, fifth lens element, sixth lens element and seventh lens element. The first lens element has object-side surface having at least one convex shape in off-axis region thereof. The second lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The third lens element has image-side surface being convex in paraxial region thereof. The sixth lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The seventh lens element has image-side surface being concave in paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in off-axis region thereof. The optical lens assembly has a total of seven lens elements.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: September 21, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Yu-Tai Tseng, Chun-Che Hsueh, Hung-Shuo Chen, Wei-Yu Chen
  • Patent number: 11112580
    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 30, 2019
    Date of Patent: September 7, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen Lin, Yu-Tai Tseng, Wei-Yu Chen
  • Publication number: 20210223515
    Abstract: A photographing optical lens assembly includes eight 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 and an eighth lens element. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The first lens element has positive refractive power. The object-side surface of the fifth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof. The object-side surface of the seventh lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof.
    Type: Application
    Filed: July 30, 2020
    Publication date: July 22, 2021
    Inventors: Yu-Tai TSENG, Tzu-Chieh KUO
  • Patent number: 11067778
    Abstract: An imaging optical lens assembly includes seven lens elements, the seventh 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 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 seventh lens element has an image-side surface being concave in a paraxial region thereof and having a critical point in an off-axis region thereof. The image-side surface and an object-side surface of the seventh lens element are both aspheric.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 20, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hsiang-Chi Tang, Chun-Che Hsueh, Chun-Yen Chen, Yu-Tai Tseng, Wei-Yu Chen
  • Publication number: 20210096333
    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: Application
    Filed: December 10, 2020
    Publication date: April 1, 2021
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Chen LIN, Yu-Tai TSENG, Tzu-Chieh KUO
  • Publication number: 20210080695
    Abstract: An imaging optical lens assembly includes four 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 and a fourth lens element. Each of the four lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one of all lens surfaces of the four lens elements is aspheric and has at least one inflection point.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Yu-Tai TSENG, Yu-Chun KE, Kuo-Jui WANG, Tzu-Chieh KUO