-
公开(公告)号:US20190250380A1
公开(公告)日:2019-08-15
申请号:US16394168
申请日:2019-04-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Cheng-Chen LIN , Chun-Yen CHEN , Yu-Tai TSENG , Kuan-Ting YEH , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/04 , G02B13/18 , G02B27/0025 , H04N5/2254
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:US20180231744A1
公开(公告)日:2018-08-16
申请号:US15955114
申请日:2018-04-17
Applicant: LARGAN PRECISION CO.,LTD.
Inventor: Cheng-Chen LIN , Po-Lun HSU , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B5/005 , G02B9/62 , G02B13/0015 , G02B13/002 , G02B13/04 , G02B13/06 , G02B13/18 , G02B27/0025 , H04N5/2254
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.
-
公开(公告)号:US20170219801A1
公开(公告)日:2017-08-03
申请号:US15157232
申请日:2016-05-17
Applicant: Largan Precision Co., Ltd.
Inventor: Chun-Yen CHEN , Chun-Che HSUEH , Cheng-Chen LIN , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B3/04 , G02B5/005 , G02B9/62 , G02B13/18 , G02B27/0025
Abstract: An optical 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 and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has negative refractive power. The fourth lens element with negative refractive power has a concave object-side surface. The fifth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, and the image-side surface of the fifth lens element has at least one convex shape in an off-axis region thereof. The sixth lens element has a convex object-side surface and a concave image-side surface, and the image-side surface of the sixth lens element has at least one convex shape in an off-axis region thereof.
-
14.
公开(公告)号:US20170160522A1
公开(公告)日:2017-06-08
申请号:US15439936
申请日:2017-02-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Cheng-Chen LIN , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/04 , H04N5/23296
Abstract: An image capturing 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, 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 and third lens elements have refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element with 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 image capturing lens assembly has a total of six lens elements with refractive power.
-
公开(公告)号:US20240151948A1
公开(公告)日:2024-05-09
申请号:US18414630
申请日:2024-01-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Cheng-Chen LIN , Hsin-Hsuan HUANG , Shu-Yun YANG
CPC classification number: G02B13/0045 , G02B5/00 , G02B13/0065 , G02B13/02 , G02B27/0025
Abstract: A photographing optical lens 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 second lens element has negative refractive power. The third lens element has an object-side surface being convex in a paraxial region thereof.
-
公开(公告)号:US20220011651A1
公开(公告)日:2022-01-13
申请号:US17487025
申请日:2021-09-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuan-Ming CHEN , Hsiang-Chi TANG , Lin-An CHANG , Cheng-Chen LIN , Ming-Ta CHOU
Abstract: An imaging lens assembly module has an optical axis, and includes a lens barrel and an optical element set. The lens barrel includes an object-side portion, a tubular portion and a tip-end minimal aperture. The object-side portion includes a first assembling surface. The tubular portion includes a plurality of second assembling surfaces. The optical element set includes at least one light blocking sheet and at least one optical lens element. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The optical lens element includes an optical effective portion and a peripheral portion. The object-side portion of the lens barrel includes a first reversing inclined surface gradually enlarged from the tip-end minimal aperture to the image side of the lens barrel, and the first reversing inclined surface is not contacted with the optical element set.
-
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.
-
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.
-
公开(公告)号:US20210026225A1
公开(公告)日:2021-01-28
申请号:US16851147
申请日:2020-04-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuan-Ming CHEN , Hsiang-Chi TANG , Lin-An CHANG , Cheng-Chen LIN , Ming-Ta CHOU
Abstract: An imaging lens assembly module has an optical axis, and includes a lens barrel and an optical element set. The lens barrel includes an object-side portion, a tubular portion and a tip-end minimal aperture. The object-side portion includes a first assembling surface. The tubular portion includes a plurality of second assembling surfaces. The optical element set includes at least one light blocking sheet and at least one optical lens element. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The optical lens element includes an optical effective portion and a peripheral portion. The object-side portion of the lens barrel includes a first reversing inclined surface gradually enlarged from the tip-end minimal aperture to the image side of the lens barrel, and the first reversing inclined surface is not contacted with the optical element set.
-
公开(公告)号:US20200285031A1
公开(公告)日:2020-09-10
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.
-
-
-
-
-
-
-
-
-