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公开(公告)号：US20250155684A1
公开(公告)日：2025-05-15
申请号：US19024659
申请日：2025-01-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tzu-Chieh KUO
Abstract: An optical photographing lens assembly includes nine 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, an eighth lens element and a ninth lens element. Each of the nine 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 optical photographing lens assembly has at least one aspheric lens surface having at least one inflection point.
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公开(公告)号：US20240231044A1
公开(公告)日：2024-07-11
申请号：US18126334
申请日：2023-03-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Tzu-Chieh KUO
Abstract: An imaging system 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 through an eighth lens element. The first lens element has negative refractive power. The object-side surface of the first lens element is concave in a paraxial region thereof and has at least one inflection point in an off-axis region thereof. The eighth lens element has positive refractive power. The object-side surface of the eighth 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 and has at least one inflection point in an off-axis region thereof. At least one of the lens surface of at least one of the second through seventh lens elements has at least one inflection point in an off-axis region thereof.
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公开(公告)号：US20230086139A1
公开(公告)日：2023-03-23
申请号：US17511395
申请日：2021-10-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan Chun WANG , Tzu-Chieh KUO
Abstract: 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.
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公开(公告)号：US20220404584A1
公开(公告)日：2022-12-22
申请号：US17382049
申请日：2021-07-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yi-Hsiang CHUANG , Kuan Chun WANG , Chun-Yen CHEN , Kuan-Ting YEH , Yu-Chun KE , Tzu-Chieh KUO
Abstract: 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.
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公开(公告)号：US20220276468A1
公开(公告)日：2022-09-01
申请号：US17501286
申请日：2021-10-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Jui LIN , Tzu-Chieh KUO
Abstract: An optical image capturing lens assembly includes five lens elements, the five 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, a third lens element, a fourth lens element and a fifth lens element, each of the five 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 negative refractive power. The second lens element has the image-side surface being concave in a paraxial region thereof. The third lens element with positive refractive power has the image-side surface being convex in a paraxial region thereof. The fifth lens element has the object-side surface being convex in a paraxial region thereof and the image-side surface being concave in a paraxial region thereof.
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Patent Agency Ranking
公开(公告)号：US20210223516A1
公开(公告)日：2021-07-22
申请号：US16992304
申请日：2020-08-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen LIN , Kuan-Chun WANG , Tzu-Chieh KUO
Abstract: 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.
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公开(公告)号：US20210223515A1
公开(公告)日：2021-07-22
申请号：US16942922
申请日：2020-07-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Tzu-Chieh KUO
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.
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公开(公告)号：US20210132338A1
公开(公告)日：2021-05-06
申请号：US16733094
申请日：2020-01-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Cheng-Yuan LIAO , Jin Sen WANG , Tzu-Chieh KUO
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 of the six lens elements is a freeform lens element, and at least one of the object-side surface and the image-side surface of the at least one freeform lens element is a freeform surface.
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公开(公告)号：US20210080695A1
公开(公告)日：2021-03-18
申请号：US17103699
申请日：2020-11-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Yu-Chun KE , Kuo-Jui WANG , Tzu-Chieh KUO
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.
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公开(公告)号：US20210072508A1
公开(公告)日：2021-03-11
申请号：US16673685
申请日：2019-11-04
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Cheng-Chen LIN , Yu Jui LIN , Tzu-Chieh KUO
Abstract: A photographing optical lens 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 first lens element has positive refractive power. The second lens element has negative refractive power. The sixth lens element has negative refractive power. At least one lens surface of at least one lens element of the photographing optical lens system has at least one critical point in an off-axis region thereof.
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