Patents by Inventor Chun-Che HSUEH
Chun-Che HSUEH 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).
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Publication number: 20210373298Abstract: 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: ApplicationFiled: August 16, 2021Publication date: December 2, 2021Applicant: LARGAN PRECISION CO.,LTD.Inventors: Yu-Tai TSENG, Chun-Che HSUEH, Hung-Shuo CHEN, Wei-Yu CHEN
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Patent number: 11163136Abstract: An optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex, and the object-side surface and an image-side surface thereof are aspheric. The second lens element with negative refractive power has an image-side surface being concave, and an object-side surface and the image-side surface thereof are aspheric. The third lens element with refractive power has an object-side surface being concave, and the object-side surface and an image-side surface thereof are aspheric. The optical lens assembly further includes a stop with no lens element having refractive power disposed between the stop and the first lens element. The optical lens assembly has a total of three lens elements with refractive power.Type: GrantFiled: January 27, 2020Date of Patent: November 2, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Hsin-Hsuan Huang
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Patent number: 11156808Abstract: An optical image capturing 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 with positive refractive power has a convex object-side surface. The second lens element and the third lens element have refractive power. The fourth lens element with negative refractive power has a concave object-side surface and a convex image-side surface. The fifth lens element with positive refractive power has a convex object-side surface, wherein at least one inflection point is on at least one surface thereof. The sixth lens element with negative refractive power has a concave object-side surface. The surfaces of the fifth and the sixth lens elements are aspheric. The optical image capturing system has a total of six lens elements.Type: GrantFiled: May 4, 2020Date of Patent: October 26, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Kuan-Ming Chen, Tsung-Han Tsai, Hsin-Hsuan Huang, Chun-Che Hsueh
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Patent number: 11156803Abstract: 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: GrantFiled: November 13, 2018Date of Patent: October 26, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Hung-Shuo Chen, Yu-Tai Tseng, Tzu-Chieh Kuo
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Patent number: 11137574Abstract: An image capturing lens system includes, in order from an object side to an image side, a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, a second lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, a third lens element with positive refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, and a fourth lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof.Type: GrantFiled: September 18, 2019Date of Patent: October 5, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Hsin-Hsuan Huang, Shu-Yun Yang
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Patent number: 11125978Abstract: 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: GrantFiled: July 29, 2019Date of Patent: September 21, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Yu-Tai Tseng, Chun-Che Hsueh, Hung-Shuo Chen, Wei-Yu Chen
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Patent number: 11067778Abstract: 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: GrantFiled: April 15, 2020Date of Patent: July 20, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Hsiang-Chi Tang, Chun-Che Hsueh, Chun-Yen Chen, Yu-Tai Tseng, Wei-Yu Chen
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Publication number: 20210165188Abstract: A 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. 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 the object-side surface and the image-side surface of the first lens element has at least one inflection point. The fourth lens element has positive refractive power, the object-side surface of the fourth lens element is convex 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.Type: ApplicationFiled: January 3, 2020Publication date: June 3, 2021Applicant: LARGAN PRECISION CO., LTD.Inventors: Chun-Che HSUEH, Hsin-Hsuan HUANG
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Publication number: 20210149158Abstract: 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 16, 2020Publication date: May 20, 2021Applicant: LARGAN PRECISION CO., LTD.Inventors: Chun-Che HSUEH, Hung-Shuo CHEN, Kuan Chun WANG, Wei-Yu CHEN
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Patent number: 11009685Abstract: A image capturing lens assembly includes six lens elements, the six lens elements being, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex thereof; a second lens element having negative refractive power; a third lens element; a fourth lens element; a fifth lens element with positive refractive power having an object-side surface being convex and an image-side surface being convex thereof; and a sixth lens element having an image-side surface being concave in a paraxial region thereof, the image-side surface having at least one convex critical point in an off-axial region thereof, and an object-side surface and the image-side surface being aspheric.Type: GrantFiled: December 30, 2019Date of Patent: May 18, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Wei-Yu Chen
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Publication number: 20210132335Abstract: The present disclosure provides an optical imaging lens assembly comprising, in order from an object side to an image side: a first lens element having negative refractive power; a second lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof; a third lens element having positive refractive power; a fourth lens element having positive refractive power; a fifth lens element having positive refractive power; and a sixth lens element; wherein the optical imaging lens assembly has a total of six lens elements. With such configuration, the optical imaging lens assembly of the present disclosure is characterized by a wide field of view, a compact size and high image quality.Type: ApplicationFiled: January 14, 2021Publication date: May 6, 2021Inventors: CHUN-CHE HSUEH, SHU-YUN YANG
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Patent number: 10942335Abstract: A photographing optical system 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 photographing optical system has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The image-side surface of the second lens element is convex in a paraxial region thereof. The third lens element has negative refractive power. At least one lens element of the photographing optical system has at least one aspheric surface having at least one inflection point.Type: GrantFiled: February 4, 2019Date of Patent: March 9, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Tzu-Chieh Kuo
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Patent number: 10928608Abstract: 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. The object-side surface of the second lens element is concave in a paraxial region thereof. The image-side surface of the second lens element is convex in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof. At least one lens element of the imaging optical system has at least one aspheric surface having at least one inflection point.Type: GrantFiled: December 26, 2018Date of Patent: February 23, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Tzu-Chieh Kuo
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Patent number: 10928609Abstract: The present disclosure provides an optical imaging lens assembly comprising, in order from an object side to an image side: a first lens element having negative refractive power; a second lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof; a third lens element having positive refractive power; a fourth lens element having positive refractive power; a fifth lens element having positive refractive power; and a sixth lens element; wherein the optical imaging lens assembly has a total of six lens elements. With such configuration, the optical imaging lens assembly of the present disclosure is characterized by a wide field of view, a compact size and high image quality.Type: GrantFiled: February 7, 2019Date of Patent: February 23, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Shu-Yun Yang
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Publication number: 20210018731Abstract: A 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. 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 seventh 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 seventh lens element includes at least one convex shape in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are aspheric.Type: ApplicationFiled: October 7, 2020Publication date: January 21, 2021Inventors: Chun-Che HSUEH, Chun-Yen CHEN, Wei-Yu CHEN
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Publication number: 20200371318Abstract: An optical imaging 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 has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave 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. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.Type: ApplicationFiled: August 13, 2020Publication date: November 26, 2020Applicant: LARGAN PRECISION CO., LTD.Inventors: Chien-Hsun WU, Chun-Che HSUEH, Wei-Yu CHEN
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Patent number: 10838173Abstract: A 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. 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 seventh 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 seventh lens element includes at least one convex shape in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are aspheric.Type: GrantFiled: November 27, 2017Date of Patent: November 17, 2020Assignee: LARGAN PRECISION CO., LTD.Inventors: Chun-Che Hsueh, Chun-Yen Chen, Wei-Yu Chen
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Publication number: 20200341242Abstract: 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: ApplicationFiled: July 29, 2019Publication date: October 29, 2020Applicant: LARGAN PRECISION CO.,LTD.Inventors: Yu-Tai TSENG, Chun-Che HSUEH, Hung-Shuo CHEN, Wei-Yu CHEN
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Publication number: 20200326507Abstract: 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: ApplicationFiled: May 30, 2019Publication date: October 15, 2020Applicant: LARGAN PRECISION CO.,LTD.Inventors: Chun-Che HSUEH, Kuan-Ting YEH, Tzu-Chieh KUO
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Patent number: 10782506Abstract: An optical imaging 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 has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave 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. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.Type: GrantFiled: January 10, 2018Date of Patent: September 22, 2020Assignee: LARGAN PRECISION CO., LTD.Inventors: Chien-Hsun Wu, Chun-Che Hsueh, Wei-Yu Chen