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).
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Patent number: 11525981Abstract: 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: GrantFiled: December 10, 2020Date of Patent: December 13, 2022Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Chen Lin, Yu-Tai Tseng, Tzu-Chieh Kuo
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Publication number: 20220283408Abstract: 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: ApplicationFiled: July 22, 2021Publication date: September 8, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Yu-Tai TSENG, Hsin-Hsuan HUANG, Meng-Kuan CHO
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Publication number: 20220244500Abstract: 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: ApplicationFiled: June 25, 2021Publication date: August 4, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Yu-Tai TSENG, Meng-Kuan CHO, Hsin-Hsuan HUANG
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Publication number: 20220229271Abstract: 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: ApplicationFiled: April 5, 2022Publication date: July 21, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Yu-Tai TSENG, Tung-Yi HSIEH, Hsin-Hsuan HUANG
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Patent number: 11372216Abstract: 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: GrantFiled: April 16, 2020Date of Patent: June 28, 2022Assignee: LARGAN PRECISION CO., LTD.Inventors: Kuan-Ming Chen, Yu-Tai Tseng, Hsin-Hsuan Huang, Shu-Yun Yang
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Publication number: 20220196973Abstract: 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: ApplicationFiled: March 11, 2022Publication date: June 23, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Yu-Tai TSENG, Hsin-Hsuan HUANG
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Patent number: 11327275Abstract: 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: GrantFiled: January 16, 2020Date of Patent: May 10, 2022Assignee: LARGAN PRECISION CO., LTD.Inventors: Yu-Tai Tseng, Tung-Yi Hsieh, Hsin-Hsuan Huang
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Patent number: 11307385Abstract: 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: GrantFiled: May 23, 2019Date of Patent: April 19, 2022Assignee: LARGAN PRECISION CO., LTDInventors: Yu-Tai Tseng, Hsin-Hsuan Huang
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Publication number: 20220091395Abstract: 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: ApplicationFiled: July 22, 2021Publication date: March 24, 2022Applicant: LARGAN PRECISION CO., LTD.Inventors: Hsin-Hsuan HUANG, Kuan-Ting YEH, Kuo-Jui WANG, Yu-Tai TSENG
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Patent number: 11249282Abstract: 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: GrantFiled: March 12, 2019Date of Patent: February 15, 2022Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Chen Lin, Chun-Yen Chen, Yu-Tai Tseng, Kuan-Ting Yeh, Wei-Yu Chen
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Patent number: 11226472Abstract: 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: GrantFiled: April 25, 2019Date of Patent: January 18, 2022Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Chen Lin, Chun-Yen Chen, Yu-Tai Tseng, Kuan-Ting Yeh, Hsin-Hsuan Huang
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Publication number: 20210396959Abstract: 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: ApplicationFiled: November 4, 2020Publication date: December 23, 2021Inventors: YU-TAI TSENG, HSIN-HSUAN HUANG
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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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Publication number: 20210356699Abstract: 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: ApplicationFiled: July 29, 2021Publication date: November 18, 2021Applicant: LARGAN PRECISION CO., LTD.Inventors: Cheng-Chen LIN, Yu-Tai TSENG, Wei-Yu CHEN
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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: 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: 11112580Abstract: 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: GrantFiled: August 30, 2019Date of Patent: September 7, 2021Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Chen Lin, Yu-Tai Tseng, Wei-Yu Chen
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Publication number: 20210223515Abstract: 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: ApplicationFiled: July 30, 2020Publication date: July 22, 2021Inventors: Yu-Tai TSENG, Tzu-Chieh KUO
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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: 20210096333Abstract: 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: ApplicationFiled: December 10, 2020Publication date: April 1, 2021Applicant: LARGAN PRECISION CO., LTD.Inventors: Cheng-Chen LIN, Yu-Tai TSENG, Tzu-Chieh KUO