Patents by Inventor Kaiyuan Zhang
Kaiyuan Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11982792Abstract: The present disclosure discloses a camera lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power; a second lens having positive refractive power and a convex image-side surface; a third lens having negative refractive power, a convex object-side surface and a concave image-side surface; a fourth lens having negative refractive power; a fifth lens having refractive power and a convex image-side surface; and a sixth lens having refractive power, a convex object-side surface and a concave image-side surface. Half of a maximum field-of-view Semi-FOV of the camera lens assembly and a combined focal length f23 of the second lens and the third lens satisfy: 4.00 mm<tan2(Semi-FOV)*f23<10.00 mm.Type: GrantFiled: January 27, 2021Date of Patent: May 14, 2024Assignee: Zhejiang Sunny Optics Co., LtdInventors: Yang Li, Haidong Xiao, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
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Publication number: 20240134165Abstract: In accordance with an embodiment, an optical lens includes a plurality of lenses that are sequentially arranged from an object side of the optical lens to an image side of the optical lens. A first lens of the plurality of lenses is a lens bent towards the image side and has a negative focal power; and an object-side surface of at least one of the lenses comprises at least one inflection point.Type: ApplicationFiled: January 25, 2022Publication date: April 25, 2024Inventors: Kaiyuan Zhang, Daniel Manssen, Yun Chiang Hsu, Liuchang Xiao
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Patent number: 11960067Abstract: The disclosure discloses a zoom lens group. The zoom lens group sequentially includes from an object side to an image side along an optical axis: a first lens group having a negative refractive power, the first lens group including a first lens and a second lens which are sequentially arranged along the optical axis; a second lens group having a positive refractive power, the second lens group including a third lens, a fourth lens and a fifth lens which are sequentially arranged along the optical axis; and a third lens group having a positive refractive power, a separation distance between the first lens group and the second lens group on the optical axis and a separation distance between the second lens group and the third lens group on the optical axis are adjusted, so as to switch the zoom lens group from a wide-angle state to a long-focus state.Type: GrantFiled: January 13, 2021Date of Patent: April 16, 2024Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.Inventors: Yang Gao, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
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Patent number: 11940600Abstract: The present disclosure discloses a camera lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has negative refractive power; the second lens has positive refractive power, and an image-side surface thereof is a concave surface; the third lens has positive refractive power, and an image-side surface thereof is a convex surface; the fourth lens has refractive power; the fifth lens has refractive power; the sixth lens has positive refractive power; and the seventh lens has negative refractive power. And an effective focal length f2 of the second lens and a total effective focal length f of the camera lens assembly satisfy 2<f2/f<4.5.Type: GrantFiled: September 2, 2020Date of Patent: March 26, 2024Assignee: ZHEJIANG SUNNY OPTICAL CO., LTDInventors: Biao Xu, Kaiyuan Zhang
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Patent number: 11914127Abstract: The present disclosure discloses a camera apparatus including a first optical system and a second optical system. The second optical system includes a secondary reflecting mirror, a main reflecting mirror with an opening in a center area thereof, and a lens group, which are sequentially arranged from an object side to an image side. Light from the object side is sequentially reflected by the main reflecting mirror and the secondary reflecting mirror, and then enters the lens group through the opening. A total effective focal length F1 of the first optical system and a total effective focal length F2 of the second optical system satisfy: F2/F1>10.Type: GrantFiled: December 14, 2020Date of Patent: February 27, 2024Assignee: Zhejiang Sunny Optics Co., LtdInventors: Kaiyuan Zhang, Yi Zhang, Fujian Dai, Liefeng Zhao
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Patent number: 11914110Abstract: The disclosure discloses a photographic optical system, sequentially includes from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. Wherein the first lens has a positive refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The second lens has a negative refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The sixth lens has a negative refractive power. TTL is a distance from the object-side surface of the first lens to an imaging surface of the photographic optical system on the optical axis and ImgH is a half the diagonal length of an effective pixel area on the imaging surface of the photographic optical system, and TTL and ImgH satisfy TTL/ImgH<1.5.Type: GrantFiled: July 11, 2019Date of Patent: February 27, 2024Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.Inventors: Kaiyuan Zhang, Biao Xu, Lin Huang
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Patent number: 11899175Abstract: The present disclosure discloses an optical imaging lens assembly, sequentially from an object side to an image side along an optical axis, including: a first lens having refractive power, an object-side surface thereof is concave, and an image-side surface thereof is convex; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having negative refractive power, and an object-side surface thereof is concave; a sixth lens having positive refractive power; and a seventh lens having refractive power. A total effective focal length f of the optical imaging lens assembly and an effective focal length f3 of the third lens may satisfy f3/f>1.49.Type: GrantFiled: November 2, 2020Date of Patent: February 13, 2024Inventors: Wuchao Xu, Kaiyuan Zhang, Xiaofang Wang, Ying Zhou, Fujian Dai, Liefeng Zhao
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Patent number: 11867880Abstract: The present disclosure discloses an optical imaging system, sequentially from an object side to an image side of the optical imaging system along an optical axis, including: a first lens having refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having positive refractive power; a fifth lens having refractive power; a sixth lens having refractive power; and a seventh lens having refractive power, a concave object-side surface, and a concave image-side surface. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging system may satisfy ImgH>6.0 mm. A total effective focal length f of the optical imaging system and an entrance pupil diameter EPD of the optical imaging system may satisfy f/EPD<1.9.Type: GrantFiled: September 30, 2020Date of Patent: January 9, 2024Assignee: Zhejiang Sunny Optical Co., LtdInventors: Xiaofang Wang, Biao Xu, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
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Publication number: 20230367101Abstract: An optical lens, a camera module, and an electronic device are disclosed. The optical lens includes a variable aperture, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens that are arranged from an object side to an image side. The first lens has a positive focal power, an object-side surface of the first lens is convex near an optical axis, and an image-side surface of the first lens is concave near the optical axis. The second lens has a negative focal power, an object-side surface of the second lens is convex near the optical axis, and an image-side surface of the second lens is concave near the optical axis.Type: ApplicationFiled: July 26, 2023Publication date: November 16, 2023Inventors: Kaiyuan Zhang, Yun Chiang Hsu, Shaopan Zhou, Rongkai Feng
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Patent number: 11808928Abstract: The disclosure provides a combined zoom dual-camera lens assembly, which includes a first lens group and a second lens group, wherein a field of view of the second lens group is larger than a field of view of the first lens group, and a thickness of the second lens group is smaller than a thickness of the first lens group; and a total effective focal length fT of the first lens group and a total effective focal length fW of the second lens group meet fT/fW>9.00.Type: GrantFiled: May 8, 2020Date of Patent: November 7, 2023Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.Inventors: Yi Zhang, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
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Patent number: 11768353Abstract: An optical imaging system includes an optical lens group including, sequentially along an optical axis from an object side to an image side, a first lens, a second lens, a third lens, and a fourth lens; a lens barrel, the optical lens group is accommodated in the lens barrel; and a plurality of spacers including at least two spacers disposed between the third lens and the fourth lens; the diameter D of the lens barrel at an end towards the object side and a maximum effective radius DT11 of an object-side surface of the first lens satisfy 2×DT11/D?0.5.Type: GrantFiled: September 21, 2020Date of Patent: September 26, 2023Assignee: ZHEJIANG SUNNY OPTICAL CO., LTDInventors: Xiaofang Wang, Guijie Zhu, Biao Xu, Qi Chen, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
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Publication number: 20230251474Abstract: A telephoto optical imaging system and zoom camera apparatus. The telephoto optical imaging system includes, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power, a second lens having negative refractive power, an optical path turning prism, and a triangular prism. Distance T from the object-side surface of the first lens to an imaging plane of the telephoto optical imaging system in a normal direction of the imaging plane and the total effective focal length F1 of the telephoto optical imaging system satisfy T/F1<0.6. The zoom camera apparatus includes the telephoto optical imaging system and a short-focus optical imaging system arranged in parallel with the telephoto optical imaging system. A total effective focal length F1 of the telephoto optical imaging system and a total effective focal length F2 of the short-focus optical imaging system satisfy F1/F2>5.Type: ApplicationFiled: April 13, 2023Publication date: August 10, 2023Inventors: Fujian Dai, Kaiyuan Zhang, Liefeng Zhao
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Patent number: 11662558Abstract: The present disclosure discloses a camera lens group including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power with a concave image-side surface; a stop; a second lens having positive refractive power with a convex image-side surface; a third lens having refractive power with a concave image-side surface; a fourth lens having positive refractive power with a convex image-side surface; and a fifth lens having negative refractive power with a convex object-side surface and a concave image-side surface. A maximum effective radius DT11 of an object-side surface of the first lens and half of a maximal field-of-view Semi-FOV of the camera lens group satisfy: 2.50 mm?1<tan2(Semi-FOV)/DT11<5.00 mm?1.Type: GrantFiled: September 29, 2020Date of Patent: May 30, 2023Assignee: Zhejiang Sunny Optical Co., LtdInventors: Haidong Xiao, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
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Patent number: 11656445Abstract: The present disclosure discloses a telephoto optical imaging system and zoom camera apparatus. The telephoto optical imaging system includes, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power, a second lens having negative refractive power, an optical path turning prism, and a triangular prism. A total effective focal length F1 of the telephoto optical imaging system may satisfy F1>40 mm. The zoom camera apparatus includes the telephoto optical imaging system and a short-focus optical imaging system arranged in parallel with the telephoto optical imaging system. A total effective focal length F1 of the telephoto optical imaging system and a total effective focal length F2 of the short-focus optical imaging system satisfy F1/F2>5.Type: GrantFiled: December 14, 2020Date of Patent: May 23, 2023Inventors: Fujian Dai, Kaiyuan Zhang, Liefeng Zhao
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Patent number: 11635588Abstract: The application discloses an optical imaging lens assembly including, sequentially from an object side to an image side, a first lens having a positive refractive power with a convex object side surface and a concave image side surface; a second lens having a negative refractive power with a convex object side surface and a concave image side surface; a third lens having a refractive power; a fourth lens having a refractive power with a concave image side surface; a fifth lens having a refractive power; a sixth lens having a negative refractive power with a convex object side surface and a concave image side surface. An effective focal length f, an entrance pupil diameter EPD, half of a maximum field of view HFOV and a curvature radius R8 of the image side surface of the fourth lens satisfy f/EPD<2.0, 3.8 mm<f*TAN(HFOV)<5 mm, and R8?500 mm.Type: GrantFiled: April 21, 2020Date of Patent: April 25, 2023Inventors: Xinghai You, Kaiyuan Zhang, Lin Huang, Liefeng Zhao
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Patent number: 11598934Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power with a convex object-side surface; a sixth lens having positive refractive power with a convex object-side surface a convex image-side surface; and a seventh lens having negative refractive power, wherein a distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging lens assembly satisfy ImgH/(TTL/ImgH)>5.0 mm.Type: GrantFiled: August 10, 2020Date of Patent: March 7, 2023Assignee: Zhejiang Sunny Optical Co., LtdInventors: Chen Chen, Kaiyuan Zhang, Biao Xu, Fujian Dai, Liefeng Zhao
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Patent number: 11579407Abstract: The present disclosure provides an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power; a second lens having refractive power; and a third lens having refractive power. A distance BFL along the optical axis from an image-side surface of the third lens of the optical imaging lens assembly to an imaging plane of the optical imaging lens assembly and a distance Td along the optical axis from an object-side surface of the first lens to the image-side surface of the third lens satisfy: 4.5?BFL/Td?7.0.Type: GrantFiled: August 31, 2020Date of Patent: February 14, 2023Inventors: Kaiyuan Zhang, Yi Zhang, Fujian Dai, Liefeng Zhao
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Patent number: 11579406Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power; a second lens having refractive power; a third lens having negative refractive power; a fourth lens having refractive power and a convex object-side surface; a fifth lens having refractive power and a concave object-side surface; a sixth lens having refractive power; a seventh lens having refractive power; and an eighth lens having refractive power. A total effective focal length f of the optical imaging lens assembly and half of a maximal field-of-view Semi-FOV of the optical imaging lens assembly satisfy: f*tan(Semi-FOV)>5.5 mm. A total effective focal length f of the optical imaging lens assembly and an effective focal length f1 of the first lens satisfy: 0.5<f/f1<1.5.Type: GrantFiled: September 25, 2020Date of Patent: February 14, 2023Inventors: Nian Chen, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
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Patent number: 11573398Abstract: The present disclosure discloses an optical imaging lens group including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power with a convex object-side surface; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; and a sixth lens having negative refractive power with a concave object-side surface and a convex image-side surface. A total effective focal length f of the optical imaging lens group, an entrance pupil diameter EPD of the optical imaging lens group and half of a maximal field-of-view Semi-FOV of the optical imaging lens group satisfy: f/EPD<2, and f*tan(Semi-FOV)>4.5 mm.Type: GrantFiled: August 18, 2020Date of Patent: February 7, 2023Assignee: Zhejiang Sunny Optical Co., Ltd.Inventors: Biao Xu, Kaiyuan Zhang, Xiaofang Wang, Fujian Dai, Liefeng Zhao
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Patent number: RE49789Abstract: The present disclosure discloses an optical imaging lens assembly. The optical imaging lens assembly includes, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has a positive refractive power and a convex object-side surface. The second lens has a negative refractive power. The third lens has a positive refractive power. Each of the fourth lens and the fifth lens has a positive refractive power or a negative refractive power. The sixth lens has a positive refractive power. The seventh lens has a negative refractive power, a concave object-side surface and a concave image-side surface. A combined focal length f12 of the first and second lenses and a combined focal length f34 of the third and fourth lenses satisfy:|f12/f34|?0.3.Type: GrantFiled: January 10, 2022Date of Patent: January 2, 2024Assignee: Zhejiang Sunny Optical Co., LtdInventors: Biao Xu, Kaiyuan Zhang, Jianke Wenren