-
公开(公告)号：US11644651B2
公开(公告)日：2023-05-09
申请号：US17020611
申请日：2020-09-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuo-Jui Wang , Tzu-Chieh Kuo
Abstract: An image capturing lens system includes four lens groups which include eight lens elements. The four lens groups are, in order from an object side to an image side: first, second, third and fourth lens groups. The eight lens elements are, in order from the object side to the image side: first, second, third, fourth, fifth, sixth, seventh and eighth lens elements. The first and second lens elements respectively have positive and negative refractive power. At least one lens element in the second through fourth lens groups has an inflection point. A focal length of the image capturing lens system is varied by changing axial distances between the four lens groups in a zooming process. The second lens group is moved relative to the first lens group along an optical axis in the zooming process. The image capturing lens system has a long-focal-length end and a short-focal-length end.
-
公开(公告)号：US11640044B2
公开(公告)日：2023-05-02
申请号：US17475420
申请日：2021-09-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hung-Shuo Chen , Chien-Hsun Wu , Tzu-Chieh Kuo
IPC: G02B9/34 , G02B13/14 , G02B13/00 , H04N5/33 , G01B11/24 , H04N13/225 , H04N13/254
Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.
-
公开(公告)号：US11480765B2
公开(公告)日：2022-10-25
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.
-
公开(公告)号：US11480757B2
公开(公告)日：2022-10-25
申请号：US16752838
申请日：2020-01-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ming Chen , Kuan-Ting Yeh , Tzu-Chieh Kuo
IPC: G02B9/16 , G02B26/08 , G02B13/18 , G02B27/00 , G02B9/14 , G02B9/12 , G02B13/00 , G02B5/00 , G02B9/22 , G02B9/20 , G02B9/18
Abstract: An imaging optical system includes three lens elements. The three lens elements, in order from an object side to an image side, are a first lens element having an object-side surface facing the object side and an image-side surface facing the image side, a second lens element having an object-side surface facing the object side and an image-side surface facing the image side, and a third lens element having an object-side surface facing the object side and an image-side surface facing the image side. The third lens element has positive refractive power, the imaging optical system has a total of three lens elements, and there are air gaps between paraxial regions of the first lens element, the second lens element and the third lens element.
-
公开(公告)号：US11467376B2
公开(公告)日：2022-10-11
申请号：US17111573
申请日：2020-12-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ting Yeh , Tzu-Chieh Kuo
Abstract: An image capturing optical lens assembly includes three lens elements, the three 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 and a third lens element. Each of the three lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The second lens element has negative refractive power. The object-side surface of the third lens element is concave in a paraxial region thereof, and the image-side surface of the third lens element is convex in a paraxial region thereof. The image capturing optical lens assembly has a total of three lens elements.
-
Patent Agency Ranking
公开(公告)号：US11204487B2
公开(公告)日：2021-12-21
申请号：US16856227
申请日：2020-04-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun Wu , Tzu-Chieh Kuo , Kuan-Ming Chen
Abstract: An optical imaging system includes five lens elements, the five lens elements being, in order from an object side to an image side: a first lens element having positive refractive power; a second lens element having negative refractive power; a third lens element having positive refractive power; a fourth lens element having positive refractive power; and a fifth lens element having negative refractive power.
-
公开(公告)号：US11150441B2
公开(公告)日：2021-10-19
申请号：US16819276
申请日：2020-03-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hung-Shuo Chen , Chien-Hsun Wu , Tzu-Chieh Kuo
IPC: G02B9/34 , G02B13/14 , G02B13/00 , H04N5/33 , G01B11/24 , H04N13/225 , H04N13/254
Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.
-
公开(公告)号：US11086106B2
公开(公告)日：2021-08-10
申请号：US16658437
申请日：2019-10-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun Wu , Tzu-Chieh Kuo
Abstract: An optical 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 negative refractive power, a second lens element with positive refractive power, a third lens element with negative refractive power, a fourth lens element with positive refractive power, a fifth lens element, and a sixth lens element with negative refractive power.
-
公开(公告)号：US10928608B2
公开(公告)日：2021-02-23
申请号：US16232744
申请日：2018-12-26
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chun-Che Hsueh , 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. 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.
-
公开(公告)号：US10908391B2
公开(公告)日：2021-02-02
申请号：US16112666
申请日：2018-08-25
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.
-
-
-
-
-
-
-
-
-
Search Results
87
records
(took 0.017 seconds)
