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公开(公告)号：US09977222B2
公开(公告)日：2018-05-22
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.
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公开(公告)号：US09864171B2
公开(公告)日：2018-01-09
申请号：US14834629
申请日：2015-08-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi Hsieh , Chun-Yen Chen , Chun-Che Hsueh , Hsin-Hsuan Huang
CPC classification number: G02B13/0045 , G02B9/60
Abstract: An optical photographing 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 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 and an image-side surface being concave 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 third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.
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公开(公告)号：US20170102520A1
公开(公告)日：2017-04-13
申请号：US14950058
申请日：2015-11-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/60
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 and a fifth lens element. The first lens element with negative refractive power has a concave image-side surface. The second lens element with negative refractive power has a concave image-side surface. The third lens element has positive refractive power. The fourth lens element with positive refractive power has a convex image-side surface, wherein two surfaces of the fourth lens element are both aspheric. The fifth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, wherein two surfaces of the fifth lens element are both aspheric.
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公开(公告)号：US09341815B1
公开(公告)日：2016-05-17
申请号：US14625043
申请日：2015-02-18
Applicant: LARGAN Precision Co., Ltd.
Inventor： Chun-Che Hsueh , Chun-Yen Chen , Wei-Yu Chen
CPC classification number: G02B13/0035 , G02B9/12 , G02B13/008 , H04N5/2253
Abstract: An optical imaging system 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 an image-side surface being convex in a paraxial region. The second lens element with positive refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region. The third lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the third lens element has at least one convex shape in an off-axis region thereof. The optical imaging system further comprises a stop between the image-side surface of the first lens element and the object-side surface of the second lens element. The lens elements are made of plastic material.
Abstract translation: 光学成像系统从物体侧到像侧依次包括第一透镜元件，第二透镜元件和第三透镜元件。 具有正折光力的第一透镜元件具有凸面的物体侧表面和在近轴区域中的凸面的图像侧表面。 具有正折光力的第二透镜元件具有凹面的物体侧表面和在近轴区域中的凸面的图像侧表面。 具有负屈光力的第三透镜元件具有在其近轴区域中凹入的图像侧表面，其中第三透镜元件的像侧表面在其偏轴区域中具有至少一个凸形形状。 光学成像系统还包括在第一透镜元件的图像侧表面和第二透镜元件的物体侧表面之间的止挡件。 透镜元件由塑料材料制成。
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公开(公告)号：US11940667B2
公开(公告)日：2024-03-26
申请号：US18048072
申请日：2022-10-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi Hsieh , Chun-Yen Chen , Chun-Che Hsueh , Hsin-Hsuan Huang
CPC classification number: G02B9/60 , G02B13/0045
Abstract: An optical photographing 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 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 and an image-side surface being concave 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 third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.
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Patent Agency Ranking
公开(公告)号：US11513318B2
公开(公告)日：2022-11-29
申请号：US16781375
申请日：2020-02-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi Hsieh , Chun-Yen Chen , Chun-Che Hsueh , Hsin-Hsuan Huang
Abstract: An optical photographing 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 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 and an image-side surface being concave 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 third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.
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公开(公告)号：US20200241258A1
公开(公告)日：2020-07-30
申请号：US16849012
申请日：2020-04-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi Tang , Chun-Che Hsueh , Chun-Yen Chen , Yu-Tai Tseng , Wei-Yu Chen
Abstract: An imaging optical lens assembly includes seven lens elements, the seventh 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, 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 has negative refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof and having a critical point in an off-axis region thereof. The image-side surface and an object-side surface of the seventh lens element are both aspheric.
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公开(公告)号：US10606035B2
公开(公告)日：2020-03-31
申请号：US15797211
申请日：2017-10-30
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：US10591701B2
公开(公告)日：2020-03-17
申请号：US15827233
申请日：2017-11-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi Hsieh , Chun-Yen Chen , Chun-Che Hsueh , Hsin-Hsuan Huang
Abstract: An optical photographing 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 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 and an image-side surface being concave 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 third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.
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公开(公告)号：US10520704B2
公开(公告)日：2019-12-31
申请号：US15611101
申请日：2017-06-01
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen , Shu-Yun Yang
Abstract: An optical image assembly 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. The second 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. The third lens element has positive refractive power. The fourth lens element has positive refractive power. The fifth lens element has positive refractive power. The sixth lens element has negative refractive power.
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