Patents by Inventor Kuan-Ting Yeh

Kuan-Ting Yeh 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: 11480757
    Abstract: An imaging optical system includes three lens elements. The three lens elements, in order from an object side to an image side, are a first lens element having an object-side surface facing the object side and an image-side surface facing the image side, a second lens element having an object-side surface facing the object side and an image-side surface facing the image side, and a third lens element having an object-side surface facing the object side and an image-side surface facing the image side. The third lens element has positive refractive power, the imaging optical system has a total of three lens elements, and there are air gaps between paraxial regions of the first lens element, the second lens element and the third lens element.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: October 25, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ming Chen, Kuan-Ting Yeh, Tzu-Chieh Kuo
  • Patent number: 11467376
    Abstract: An image capturing optical lens assembly includes three lens elements, the three lens elements being, in order from an object side to an image side along an optical path, a first lens element, a second lens element and a third lens element. Each of the three lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The second lens element has negative refractive power. The object-side surface of the third lens element is concave in a paraxial region thereof, and the image-side surface of the third lens element is convex in a paraxial region thereof. The image capturing optical lens assembly has a total of three lens elements.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: October 11, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ting Yeh, Tzu-Chieh Kuo
  • Publication number: 20220276679
    Abstract: Examples of an anti-fingerprint enclosure for an electronic device have been described. In an example, the enclosure comprises an aluminum alloy substrate; a sealing layer deposited on a surface of the aluminum alloy substrate; and a magnesium fluoride sol-gel derived film deposited on the sealing layer, wherein the magnesium fluoride sol-gel derived film exhibits a refractive index of from about 1.36 to about 1.44.
    Type: Application
    Filed: November 14, 2019
    Publication date: September 1, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Ya-Ting Yeh, Hsing-Hung Hsieh
  • Publication number: 20220244495
    Abstract: An image capturing optical lens system includes four 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 and a fourth lens element. The first lens element has an object-side surface being convex in a paraxial region thereof. The third lens element with positive 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 fourth lens element has negative refractive power.
    Type: Application
    Filed: July 15, 2021
    Publication date: August 4, 2022
    Inventors: Kuan-Ting YEH, Wei-Yu CHEN
  • Publication number: 20220244504
    Abstract: A photographing lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof, wherein the object-side surface has at least one convex critical point in an off-axis region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. 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, and an image-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, wherein the image-side surface has at least one convex critical point in an off-axis region thereof.
    Type: Application
    Filed: April 14, 2022
    Publication date: August 4, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Po-Lun HSU, Wei-Yu CHEN, Kuan-Ting YEH, Ssu-Hsin LIU
  • Patent number: 11393554
    Abstract: In one example, a device housing is described, which may include a base substrate and ion-exchanged glass beads disposed on an outer surface of the base substrate.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: July 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Ya-Ting Yeh, Chao-Wen Cheng, Hsin-Yi Lee
  • Patent number: 11385440
    Abstract: An optical photographing lens assembly includes three lens elements which are, in order from an object side to an image side: a first lens element, a second lens element and a third lens element. Each of the three 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 inflection point, and the object-side surface of the first lens element has at least one critical point in an off-axis region thereof. The optical photographing lens assembly has a total of three lens elements.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: July 12, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Che Hsueh, Kuan-Ting Yeh, Tzu-Chieh Kuo
  • Publication number: 20220214522
    Abstract: A photographing optical system 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 eight lens elements each have 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 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. At least one lens surface of at least one lens element of the photographing optical system has at least one critical point in an off-axis region thereof.
    Type: Application
    Filed: March 15, 2022
    Publication date: July 7, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Yen CHEN, Kuan-Ting YEH, Tzu-Chieh KUO
  • Publication number: 20220187578
    Abstract: An optical image lens assembly includes five 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 and a fifth lens element. Each of the five lens elements 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 convex in a paraxial region thereof. The image-side surface of the third lens element is concave in a paraxial region thereof. The object-side surface of the fourth lens element is concave in a paraxial region thereof, and the image-side surface of the fourth lens element is convex in a paraxial region thereof.
    Type: Application
    Filed: March 18, 2021
    Publication date: June 16, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ting YEH, Hsin-Hsuan HUANG
  • Publication number: 20220171171
    Abstract: An image lens assembly includes, in order from an object side to an image side along an optical path, a first lens group, a second lens group, a third lens group and a fourth lens group. A total number of lens elements in the image lens assembly is seven. The first lens group includes a first lens element with positive refractive power and a second lens element with negative refractive power. Each of the second lens group and the third lens group includes at least one lens element. The fourth lens group includes a seventh lens element. When the image lens assembly is focusing or zooming, a relative position between the first lens group and an image surface is fixed, a relative position between the fourth lens group and the image surface is fixed, and the second lens group and the third lens group move along the optical axis.
    Type: Application
    Filed: November 2, 2021
    Publication date: June 2, 2022
    Inventors: Kuan-Ting YEH, Wei-Yu CHEN
  • Patent number: 11333862
    Abstract: A photographing lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof, wherein the object-side surface has at least one convex critical point in an off-axis region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. 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, and an image-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, wherein the image-side surface has at least one convex critical point in an off-axis region thereof.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: May 17, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Po-Lun Hsu, Wei-Yu Chen, Kuan-Ting Yeh, Ssu-Hsin Liu
  • Patent number: 11333860
    Abstract: An imaging lens system 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. At least one of an object-side surface and an image-side surface of the fifth lens element has at least one inflection point. The object-side surface and the image-side surface of the fifth lens element are both aspheric.
    Type: Grant
    Filed: January 18, 2020
    Date of Patent: May 17, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ting Yeh, Hung-Shuo Chen, Chien-Hsun Wu, Wei-Yu Chen
  • Patent number: 11314050
    Abstract: A photographing optical system 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 eight lens elements each have 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 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. At least one lens surface of at least one lens element of the photographing optical system has at least one critical point in an off-axis region thereof.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: April 26, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Yen Chen, Kuan-Ting Yeh, Tzu-Chieh Kuo
  • 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
  • Publication number: 20220035141
    Abstract: An image lens assembly includes four lens groups: a first lens group, a second lens group, a third lens group and a fourth lens group along an optical path. The four lens groups include nine lens elements: a first lens element with positive refractive power, a second lens element with negative refractive power, 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 along the optical path. At least one lens element of the image lens assembly has at least one inflection point. At least five lens elements of the image lens assembly are made of plastic material. When focusing or zooming, the first lens group and the fourth lens group stay stationary, while the second lens group and the third lens group move along an optical axis.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 3, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: 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: 20220011538
    Abstract: An imaging lens 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, and 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. The first lens element has negative refractive power. The fourth lens element has positive refractive power, and the image-side surface of the fourth lens element is convex in a paraxial region thereof. At least one lens element of the imaging lens system has at least one lens surface having at least one inflection point.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ting YEH, Hsin-Hsuan HUANG
  • Publication number: 20210349287
    Abstract: An image capturing optical lens assembly includes three lens elements, the three lens elements being, in order from an object side to an image side along an optical path, a first lens element, a second lens element and a third lens element. Each of the three lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The second lens element has negative refractive power. The object-side surface of the third lens element is concave in a paraxial region thereof, and the image-side surface of the third lens element is convex in a paraxial region thereof. The image capturing optical lens assembly has a total of three lens elements.
    Type: Application
    Filed: December 4, 2020
    Publication date: November 11, 2021
    Inventors: Kuan-Ting YEH, Tzu-Chieh KUO
  • Patent number: 11163134
    Abstract: An imaging lens 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, and 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. The first lens element has negative refractive power. The fourth lens element has positive refractive power, and the image-side surface of the fourth lens element is convex in a paraxial region thereof. At least one lens element of the imaging lens system has at least one lens surface having at least one inflection point.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: November 2, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Kuan-Ting Yeh, Hsin-Hsuan Huang