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公开(公告)号：US11487091B2
公开(公告)日：2022-11-01
申请号：US17064644
申请日：2020-10-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Chun-Yen Chen , Wei-Yu Chen
Abstract: 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.
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公开(公告)号：US11333861B2
公开(公告)日：2022-05-17
申请号：US16779751
申请日：2020-02-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen , Chun-Che Hsueh , Wei-Yu Chen
Abstract: An image capturing 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 fifth lens element with positive 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 object-side surface being convex in a paraxial region thereof and 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, and the image-side surface thereof includes at least one convex shape in an off-axis region thereof.
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公开(公告)号：US11294149B2
公开(公告)日：2022-04-05
申请号：US16582032
申请日：2019-09-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hung-Shuo Chen , Wei-Yu Chen
Abstract: An optical photographing lens assembly includes six lens elements, in order from an object side to an image side, the six lens elements are 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 positive refractive power. The fourth lens element has negative refractive power. The fifth lens element has an object-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, both an object-side surface and the image-side surface of the seventh lens element are aspheric, and at least one of the object-side surface and the image-side surface of the sixth lens element includes at least one inflection point.
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公开(公告)号：US11262554B2
公开(公告)日：2022-03-01
申请号：US16882467
申请日：2020-05-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Po-Lun Hsu , Wei-Yu Chen
Abstract: A 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 with negative refractive power has a concave image-side surface in a paraxial region. The second lens element with refractive power has a convex object-side surface in a paraxial region. The third lens element has positive refractive power. The fourth lens element with positive refractive power has an object-side and an image-side surfaces being aspheric. The fifth lens element with negative refractive power has an aspheric concave object-side surface and an aspheric convex image-side surface in a paraxial region. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region with a convex shape in an off-axis region.
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公开(公告)号：US11256070B2
公开(公告)日：2022-02-22
申请号：US16856148
申请日：2020-04-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Wei-Yu Chen
Abstract: This disclosure provides an image capturing optical lens assembly including, in order from an object side to an image side: a first lens element with refractive power having an object-side surface being convex in a paraxial region thereof; a second lens element having positive refractive power; a third lens element with refractive power having an image-side surface being concave in a paraxial region thereof; a fourth lens element with refractive power having an image-side surface being concave in a paraxial region thereof, wherein both surfaces thereof being aspheric; a fifth lens element with refractive power having an object-side surface being concave in a paraxial region thereof; and a sixth lens element with refractive power having an image-side surface being concave in a paraxial region thereof, wherein both surfaces thereof being aspheric, and the image-side surface having at least one convex shape in an off-axis region thereof.
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Patent Agency Ranking
公开(公告)号：US11237362B2
公开(公告)日：2022-02-01
申请号：US16460910
申请日：2019-07-02
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Yu Jui Lin , Wei-Yu Chen
Abstract: An electronic device includes an optical lens assembly. The optical lens assembly includes four lens elements which are, in order from an outer side to an inner side: a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has negative refractive power. An outer-side surface of the first lens element is concave in a paraxial region thereof and has at least one convex critical point in an off-axis region thereof. The third lens element has positive refractive power. The fourth lens element has an inner-side surface being convex in a paraxial region thereof and having at least one concave critical point in an off-axis region thereof. The optical lens assembly has a total of four lens elements.
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公开(公告)号：US11237360B2
公开(公告)日：2022-02-01
申请号：US17005503
申请日：2020-08-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen , Po-Lun Hsu , Wei-Yu Chen
Abstract: An imaging optical 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, 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 negative refractive power has an image-side surface being concave in a paraxial region thereof. The second lens element has positive refractive power. The fourth lens element has an image-side surface being concave in a paraxial region thereof. The sixth 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 and including at least one convex critical point in an off-axis region thereof.
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公开(公告)号：US11194132B2
公开(公告)日：2021-12-07
申请号：US16794064
申请日：2020-02-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Yu Chen
Abstract: A photographing optical lens assembly 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, a sixth lens element and a seventh lens element. The first lens element with refractive power has an object-side surface being convex in a paraxial region thereof. Each second, third, fourth and fifth lens element has refractive power. The sixth 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, and both of the surfaces of the sixth lens element are aspheric. The seventh lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface has at least one convex shape in an off-axis region thereof.
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公开(公告)号：US11112581B2
公开(公告)日：2021-09-07
申请号：US16847066
申请日：2020-04-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Yu Chen
Abstract: An optical imaging 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 seventh 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 seventh lens element has at least one critical point in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are both aspheric.
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公开(公告)号：US10795119B2
公开(公告)日：2020-10-06
申请号：US16030988
申请日：2018-07-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen , Po-Lun Hsu , Wei-Yu Chen
Abstract: An imaging optical 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, 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 negative refractive power has an image-side surface being concave in a paraxial region thereof. The second lens element has positive refractive power. The fourth lens element has an image-side surface being concave in a paraxial region thereof. The sixth 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 and including at least one convex critical point in an off-axis region thereof.
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