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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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72.发明授权公开(公告)号：US11385440B2
公开(公告)日：2022-07-12
申请号：US16427173
申请日：2019-05-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Kuan-Ting Yeh , Tzu-Chieh Kuo
Abstract: 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.
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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：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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公开(公告)号：US11163136B2
公开(公告)日：2021-11-02
申请号：US16752873
申请日：2020-01-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Hsin-Hsuan Huang
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11156808B2
公开(公告)日：2021-10-26
申请号：US16866527
申请日：2020-05-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ming Chen , Tsung-Han Tsai , Hsin-Hsuan Huang , Chun-Che Hsueh
Abstract: 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.
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公开(公告)号：US11156803B2
公开(公告)日：2021-10-26
申请号：US16188866
申请日：2018-11-13
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chun-Che Hsueh , Hung-Shuo Chen , Yu-Tai Tseng , 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 lens element of the imaging optical system has at least one aspheric surface having at least one inflection point.
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公开(公告)号：US10942335B2
公开(公告)日：2021-03-09
申请号：US16267237
申请日：2019-02-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Tzu-Chieh Kuo
IPC: G02B9/64 , G02B15/167 , G02B13/00
Abstract: 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.
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公开(公告)号：US10782506B2
公开(公告)日：2020-09-22
申请号：US15867469
申请日：2018-01-10
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chien-Hsun Wu , Chun-Che Hsueh , Wei-Yu Chen
Abstract: 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.
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公开(公告)号：US20200249443A1
公开(公告)日：2020-08-06
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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