-
公开(公告)号：US12271053B2
公开(公告)日：2025-04-08
申请号：US17667113
申请日：2022-02-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Chun-Yen Chen , Meng-Kuan Cho
Abstract: An image capturing optical system includes four 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 and a fourth 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 third 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 image capturing optical system further includes an aperture stop located between the second lens element and the third lens element.
-
公开(公告)号：US11782248B2
公开(公告)日：2023-10-10
申请号：US17722460
申请日：2022-04-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen , Chun-Che Hsueh , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B7/09 , G02B9/64 , G02B13/18 , G02B27/646
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.
-
公开(公告)号：US11586018B2
公开(公告)日：2023-02-21
申请号：US16880858
申请日：2020-05-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi Tang , Cheng-Chen Lin , Chun-Yen Chen , Yu-Tai Tseng , Wei-Yu Chen
Abstract: An imaging 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 positive refractive power 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 image-side surface being concave in a paraxial region thereof. The image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof. An object-side surface and the image-side surface of the seventh lens element are aspheric. At least one of an image-side surface of the fourth lens element and an image-side surface of the fifth lens element has at least one inflection point.
-
公开(公告)号：US11016270B2
公开(公告)日：2021-05-25
申请号：US16295633
申请日：2019-03-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi Tang , Chun-Yen Chen , Hung-Shuo Chen , Wei-Yu Chen
Abstract: A photographing optical 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 and an image-side surface being concave in a paraxial region thereof. The second lens element has positive refractive power. The sixth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The seventh lens element with negative refractive power has 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.
-
公开(公告)号：US10732389B2
公开(公告)日：2020-08-04
申请号：US16459767
申请日：2019-07-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen
Abstract: An optical photographing assembly includes, in order from an object side to an image side along an optical axis, 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 has positive refractive power. The third lens element has at least one of an object-side surface and an image-side surface being aspheric. The fourth lens element has at least one of an object-side surface and an image-side surface being aspheric. The fifth lens element has at least one of an object-side surface and an image-side surface being aspheric, wherein at least one of the object-side surface and the image-side surface of the fifth lens element includes at least one inflection point.
-
Patent Agency Ranking
公开(公告)号：US10690886B2
公开(公告)日：2020-06-23
申请号：US15816897
申请日：2017-11-17
Applicant: LARGAN Precision Co., Ltd.
Inventor： Hsiang-Chi Tang , Cheng-Chen Lin , Chun-Yen Chen , Yu-Tai Tseng , Wei-Yu Chen
Abstract: An imaging 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 positive refractive power 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 image-side surface being concave in a paraxial region thereof. The image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof. An object-side surface and the image-side surface of the seventh lens element are aspheric. At least one of an image-side surface of the fourth lens element and an image-side surface of the fifth lens element has at least one inflection point.
-
公开(公告)号：US10466442B2
公开(公告)日：2019-11-05
申请号：US16007901
申请日：2018-06-13
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chun-Yen Chen , Shu-Yun Yang
Abstract: An electronic device includes a lens system including four lens elements. the four lens elements 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 second lens element has negative refractive power. The fourth lens element has positive refractive power. At least one surface of the four lens elements has at least one inflection point. A projection device and a detecting module of the electronic device including the lens system are also disclosed.
-
公开(公告)号：US10386605B2
公开(公告)日：2019-08-20
申请号：US15296149
申请日：2016-10-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen
Abstract: An optical photographing assembly includes, in order from an object side to an image side along an optical axis, 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 has positive refractive power. The third lens element has at least one of an object-side surface and an image-side surface being aspheric. The fourth lens element has at least one of an object-side surface and an image-side surface being aspheric. The fifth lens element has at least one of an object-side surface and an image-side surface being aspheric, wherein at least one of the object-side surface and the image-side surface of the fifth lens element includes at least one inflection point.
-
公开(公告)号：US10317646B2
公开(公告)日：2019-06-11
申请号：US15673615
申请日：2017-08-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Chun-Yen Chen , Yu-Tai Tseng , Kuan-Ting Yeh , Hsin-Hsuan Huang
Abstract: 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.
-
公开(公告)号：US10073251B2
公开(公告)日：2018-09-11
申请号：US15454007
申请日：2017-03-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Chun-Yen Chen , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B5/208 , G02B9/62
Abstract: An imaging optical lens system 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 positive refractive power. The third lens element has an image-side surface being concave in a paraxial region thereof. The fifth lens element has an object-side surface and an image-side surface being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, 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 convex critical point in an off-axial region thereof.
-
-
-
-
-
-
-
-
-
Search Results
72
records
(took 0.03 seconds)
