Patents by Inventor Kuan-Chun Wang
Kuan-Chun Wang 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: 12210139Abstract: An optical photographing system 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 facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the third lens element is concave in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element has positive refractive power. The sixth lens element has positive refractive power. The seventh lens element has negative refractive power, and the image-side surface of the seventh lens element is concave in a paraxial region thereof.Type: GrantFiled: October 26, 2021Date of Patent: January 28, 2025Assignee: LARGAN PRECISION CO., LTD.Inventors: Kuan Chun Wang, Tzu-Chieh Kuo
-
Publication number: 20250004254Abstract: An 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. The first lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element 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-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.Type: ApplicationFiled: September 11, 2024Publication date: January 2, 2025Inventors: Chung-Yu WEI, Hung-Shuo CHEN, Kuan-Chun WANG, Wei-Yu CHEN
-
Patent number: 12117596Abstract: An 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. The first lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element 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-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.Type: GrantFiled: October 16, 2023Date of Patent: October 15, 2024Assignee: LARGAN PRECISION CO., LTD.Inventors: Chung-Yu Wei, Hung-Shuo Chen, Kuan-Chun Wang, Wei-Yu Chen
-
Patent number: 12019306Abstract: An optical imaging system includes six 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 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. The first lens element has negative refractive power, and the object-side surface of the first lens element is concave in a paraxial region thereof. The image-side surface of the second lens element is concave in a paraxial region thereof. The fourth lens element has negative refractive power. The image-side surface of the sixth lens element is concave in a paraxial region thereof and has at least one critical point in an off-axis region thereof.Type: GrantFiled: July 21, 2021Date of Patent: June 25, 2024Assignee: LARGAN PRECISION CO., LTD.Inventors: Yi-Hsiang Chuang, Kuan Chun Wang, Chun-Yen Chen, Kuan-Ting Yeh, Yu-Chun Ke, Tzu-Chieh Kuo
-
Publication number: 20240061216Abstract: A photographing lens assembly includes a total of 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 second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.Type: ApplicationFiled: October 24, 2023Publication date: February 22, 2024Applicant: LARGAN PRECISION CO., LTD.Inventors: Chun-Che HSUEH, Hung-Shuo CHEN, Kuan Chun WANG, Wei-Yu CHEN
-
Publication number: 20240045180Abstract: An 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. The first lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element 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-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.Type: ApplicationFiled: October 16, 2023Publication date: February 8, 2024Inventors: Chung-Yu WEI, Hung-Shuo CHEN, Kuan-Chun WANG, Wei-Yu CHEN
-
Patent number: 11860447Abstract: An imaging optical lens assembly includes five lens elements. The five lens elements in order from an object side to an image side along an optical path are 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 the object side and an image-side surface facing the image side. The first lens element has positive refractive power, the second lens element has negative refractive power and the third lens element has negative refractive power. With specific conditions being satisfied, the imaging optical lens assembly can be miniaturized while providing good image quality.Type: GrantFiled: December 30, 2020Date of Patent: January 2, 2024Assignee: LARGAN PRECISION CO., LTD.Inventors: Wen-Yao Yang, Kuan-Chun Wang, Hsin-Hsuan Huang, Huan-Sheng Chang
-
Patent number: 11835695Abstract: A photographing lens assembly includes a total of 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 second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.Type: GrantFiled: January 2, 2023Date of Patent: December 5, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Hung-Shuo Chen, Kuan Chun Wang, Wei-Yu Chen
-
Patent number: 11828910Abstract: An 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. The first lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element 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-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.Type: GrantFiled: June 10, 2021Date of Patent: November 28, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Chung-Yu Wei, Hung-Shuo Chen, Kuan-Chun Wang, Wei-Yu Chen
-
Patent number: 11774728Abstract: A photographing optical lens system 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. Each of the seven 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 sixth lens element is concave in a paraxial region thereof, and the image-side surface of the sixth lens element is convex in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the photographing optical lens system has at least one inflection.Type: GrantFiled: January 13, 2021Date of Patent: October 3, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Kuan Chun Wang, Tzu-Chieh Kuo
-
Patent number: 11662551Abstract: An optical lens assembly includes four lens elements which are, in order from an object side to an image side along an imaging optical path: a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has positive refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element with negative 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, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point in an off-axis region thereof.Type: GrantFiled: March 10, 2020Date of Patent: May 30, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Kuo-Jui Wang, Kuan Chun Wang, Hung-Shuo Chen, Jin Sen Wang, Syuan Ruei Lai, Wei-Yu Chen
-
Publication number: 20230144951Abstract: A photographing lens assembly includes a total of 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 second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.Type: ApplicationFiled: January 2, 2023Publication date: May 11, 2023Applicant: LARGAN PRECISION CO., LTD.Inventors: Chun-Che HSUEH, Hung-Shuo CHEN, Kuan Chun WANG, Wei-Yu CHEN
-
Publication number: 20230086139Abstract: An optical photographing system 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 facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the third lens element is concave in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element has positive refractive power. The sixth lens element has positive refractive power. The seventh lens element has negative refractive power, and the image-side surface of the seventh lens element is concave in a paraxial region thereof.Type: ApplicationFiled: October 26, 2021Publication date: March 23, 2023Applicant: LARGAN PRECISION CO., LTD.Inventors: Kuan Chun WANG, Tzu-Chieh KUO
-
Patent number: 11579412Abstract: A photographing lens assembly includes a total of 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 second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.Type: GrantFiled: January 16, 2020Date of Patent: February 14, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Hung-Shuo Chen, Kuan Chun Wang, Wei-Yu Chen
-
Publication number: 20220404584Abstract: An optical imaging system includes six 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 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. The first lens element has negative refractive power, and the object-side surface of the first lens element is concave in a paraxial region thereof. The image-side surface of the second lens element is concave in a paraxial region thereof. The fourth lens element has negative refractive power. The image-side surface of the sixth lens element is concave in a paraxial region thereof and has at least one critical point in an off-axis region thereof.Type: ApplicationFiled: July 21, 2021Publication date: December 22, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Yi-Hsiang CHUANG, Kuan Chun WANG, Chun-Yen CHEN, Kuan-Ting YEH, Yu-Chun KE, Tzu-Chieh KUO
-
Patent number: 11487089Abstract: An image capturing optical lens assembly includes five lens elements, in order from an object side to an image side along an optical path, being 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 thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The fourth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. At least one of surfaces of the fifth lens element includes at least one critical point in an off-axis region thereof.Type: GrantFiled: August 13, 2020Date of Patent: November 1, 2022Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Chen Lin, Kuan-Chun Wang, Tzu-Chieh Kuo
-
Publication number: 20220187570Abstract: A photographing optical lens system 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. Each of the seven 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 sixth lens element is concave in a paraxial region thereof, and the image-side surface of the sixth lens element is convex in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the photographing optical lens system has at least one inflection.Type: ApplicationFiled: January 13, 2021Publication date: June 16, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Kuan Chun WANG, Tzu-Chieh KUO
-
Publication number: 20220099944Abstract: An 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. The first lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element 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-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.Type: ApplicationFiled: June 10, 2021Publication date: March 31, 2022Inventors: Chung-Yu WEI, Hung-Shuo CHEN, Kuan-Chun WANG, Wei-Yu CHEN
-
Publication number: 20220035125Abstract: An imaging optical lens assembly includes five lens elements. The five lens elements in order from an object side to an image side along an optical path are 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 the object side and an image-side surface facing the image side. The first lens element has positive refractive power, the second lens element has negative refractive power and the third lens element has negative refractive power. With specific conditions being satisfied, the imaging optical lens assembly can be miniaturized while providing good image quality.Type: ApplicationFiled: December 30, 2020Publication date: February 3, 2022Inventors: WEN-YAO YANG, KUAN-CHUN WANG, HSIN-HSUAN HUANG, HUAN-SHENG CHANG
-
Publication number: 20210223516Abstract: An image capturing optical lens assembly includes five lens elements, in order from an object side to an image side along an optical path, being 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 thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The fourth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. At least one of surfaces of the fifth lens element includes at least one critical point in an off-axis region thereof.Type: ApplicationFiled: August 13, 2020Publication date: July 22, 2021Inventors: Cheng-Chen LIN, Kuan-Chun WANG, Tzu-Chieh KUO