Patents by Inventor Liefeng CHEN
Liefeng CHEN 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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Publication number: 20240159991Abstract: An optical lens assembly, including: a lens barrel; five lenses arranged sequentially along optical axis; a first spacer, in contact with at least part of an image-side surface of a first lens; a second spacer, in contact with at least part of an image-side surface of the second lens; and a focal length f2 of the second lens, the center thickness CT2 of the second lens on the optical axis, an air spacing T23 between the second lens and a third lens on the optical axis, a maximum thickness CP2 of the second spacer, and a distance EP12 between an image-side surface of the first spacer and an object-side surface of the second spacer along the optical axis satisfy: ?50.0<f2/(CT2+T23)+f2/(EP12+CP2)<0.Type: ApplicationFiled: April 18, 2023Publication date: May 16, 2024Inventors: Weiwang CHEN, Fan YANG, Fujian DAI, Liefeng ZHAO
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Patent number: 11974033Abstract: An optical camera lens includes a first camera lens component including at least one first lens and a second camera lens component including a second lens barrel and at least one second lens mounted in the second lens barrel. The first and second lenses together constitute an imageable optical system. At least one of the two camera lens components has a smooth region located on an end surface of the camera lens component, and a connecting medium for fixing the first and second camera lens components together. A corresponding assembly method of the optical camera lens and a corresponding camera module and an assembly method thereof are also provided. The optical camera lens can improve a pre-positioning accuracy by improving a height measurement accuracy, and can use a distance measuring point as a feature point of image recognition so as to perform pre-positioning and active calibration.Type: GrantFiled: July 10, 2019Date of Patent: April 30, 2024Assignee: NINGBO SUNNY OPOTECH CO., LTD.Inventors: Shuijia Chu, Lin Liu, Liefeng Chen, Chao Ye, Xiaoming Ding
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Publication number: 20240069308Abstract: An optical imaging lens assembly, including: an imaging lens group, consisting of a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence from an object side to an image side along an optical axis, where the sixth lens has at least one inflection point on an image-side surface; a plurality of spacing elements, including a first spacing element disposed between the first lens and the second lens, a second spacing element disposed between the second lens and the third lens, a third spacing element disposed between the third lens and the fourth lens and a fifth spacing element disposed between the fifth lens and the sixth lens; and a lens barrel.Type: ApplicationFiled: April 14, 2023Publication date: February 29, 2024Inventors: Leilei Fu, Xujiong Wu, Qi Chen, Fujian Dai, Liefeng Zhao
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Publication number: 20220187561Abstract: An optical lens has a lens component including at least one first lens and a lens barrel portion holding the at least one first lens, an outer part of the lens barrel portion having a first fastener arranged in a circumferential direction, and a lens driving component including a drive portion and a drive portion carrier. The drive portion drives the lens component, and an inner part of the drive portion carrier has a second fastener arranged in a circumferential direction. The first and second fasteners are engaged to couple the lens component and the lens driving component, and one of the first and second fasteners has an inclined portion that is inclinedly configured in the circumferential direction.Type: ApplicationFiled: March 11, 2020Publication date: June 16, 2022Inventors: Liefeng CHEN, Zhewen MEI, Takehiko TANAKA, Lin LIU
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Publication number: 20220107480Abstract: The optical lenses include a first lenses part including a first lens and a second lenses part including a second lens. The second lens and the first lens constitute an imageable optical system. A first adhesive material is located in a first gap between the first and second lenses parts, the first adhesive material supporting and fixing the first and second lenses parts. The first lenses part has a first bottom surface, and the second lenses part has a second top surface. An adhesive applying area for arranging the first adhesive material is provided on the first bottom surface and/or the second top surface. A first adhesive blocking portion is provided on the first bottom surface and/or a third adhesive blocking portion is provided on the second top surface.Type: ApplicationFiled: January 3, 2020Publication date: April 7, 2022Inventors: Liefeng CHEN, Zhewen MEI, Takehiko TANAKA, Xinxiang SUN, Lin LIU
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Publication number: 20210337093Abstract: An optical camera lens includes a first camera lens component including at least one first lens and a second camera lens component including a second lens barrel and at least one second lens mounted in the second lens barrel. The first and second lenses together constitute an imageable optical system. At least one of the two camera lens components has a smooth region located on an end surface of the camera lens component, and a connecting medium for fixing the first and second camera lens components together. A corresponding assembly method of the optical camera lens and a corresponding camera module and an assembly method thereof are also provided. The optical camera lens can improve a pre-positioning accuracy by improving a height measurement accuracy, and can use a distance measuring point as a feature point of image recognition so as to perform pre-positioning and active calibration.Type: ApplicationFiled: July 10, 2019Publication date: October 28, 2021Inventors: Shuijia CHU, Lin LIU, Liefeng CHEN, Chao YE, Xiaoming DING
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Publication number: 20210333503Abstract: The present application provides an optical lens, comprising: a first lens component, a second lens component and a first glue material. A first lens sheet group of the first lens component and a second lens sheet group of the second lens component together constitutes an imageable optical system, wherein a second lens barrel of the second lens component has an outer top surface and an inner top surface, and the second lens sheet group bears against the inner top surface. The outer top surface comprises a glue spreading surface suitable for arranging the first glue material and an extension surface formed by extending from the glue spreading surface to a central axis of the second lens barrel, there is a first thickness from the glue spreading surface to the inner top surface, there is a second thickness from the extension surface to the inner top surface, and the first thickness is greater than the second thickness.Type: ApplicationFiled: July 17, 2019Publication date: October 28, 2021Applicant: NINGBO SUNNY OPOTECH CO., LTD.Inventors: Takehiko TANAKA, Liefeng CHEN, Lin LIU, Chunmei LIU
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Publication number: 20210318512Abstract: A lens group assembly includes a lens barrel and a plurality of lenses. The lenses are embedded in the lens barrel to assemble the lens group, and there is an adhesive material between at least two of the lenses and/or between at least one of the lenses and the lens barrel to reinforce the structural strength of the assembled lens group. A corresponding optical lens, a camera module and a lens group assembling method are also included. Assembling accuracy and assembling stability of the high-sensitivity multi-lens optical system is improved by increasing the adhesion between the lenses. Variation of the optical lens is reduced based on an active calibration process. Adhesive material that might otherwise overflow is accommodated. Defects caused by the assembly of the optical lens are reduced based on the active calibration process, especially the field curvature and peak variation.Type: ApplicationFiled: July 10, 2019Publication date: October 14, 2021Inventors: Takehiko TANAKA, Heng JIANG, Lin LIU, Liefeng CHEN
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Publication number: 20210203818Abstract: the present invention provides a camera module, a molding photosensitive assembly thereof, a manufacturing method, and an electronic device, the molding photosensitive assembly comprises a lens, a photosensitive element, a circuit board, a molding base, and a supporting element, the photosensitive element being arranged on the circuit board, the molding base being formed into an integral structure with the lens, the supporting element, the photosensitive element, and the circuit board by means of a molding process, and the camera module and the molding photosensitive assembly thereof being capable of reducing stain sensitivity and shortening the distance of the lens plane above a light through hole of the lens to the photosensitive plane of the photosensitive element.Type: ApplicationFiled: March 17, 2021Publication date: July 1, 2021Applicant: Ningbo Sunny Opotech Co., Ltd.Inventors: Mingzhu WANG, Zhongyu LUAN, Liefeng CHEN, Duanliang CHENG, Bojie ZHAO, Takehiko TANAKA, Zhen HUANG
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Patent number: 10979610Abstract: The present invention provides a camera module, a molding photosensitive assembly thereof, a manufacturing method, and an electronic device, the molding photosensitive assembly comprises a lens, a photosensitive element, a circuit board, a molding base, and a supporting element, the photosensitive element being arranged on the circuit board, the molding base being formed into an integral structure with the lens, the supporting element, the photosensitive element, and the circuit board by means of a molding process, and the camera module and the molding photosensitive assembly thereof being capable of reducing stain sensitivity and shortening the distance of the lens plane above a light through hole of the lens to the photosensitive plane of the photosensitive element.Type: GrantFiled: February 8, 2018Date of Patent: April 13, 2021Assignee: NINGBO SUNNY OPOTECH CO., LTD.Inventors: Mingzhu Wang, Zhongyu Luan, Liefeng Chen, Duanliang Cheng, Bojie Zhao, Takehiko Tanaka, Zhen Huang
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Publication number: 20200007726Abstract: The present invention provides a camera module, a molding photosensitive assembly thereof, a manufacturing method, and an electronic device, the molding photosensitive assembly comprises a lens, a photosensitive element, a circuit board, a molding base, and a supporting element, the photosensitive element being arranged on the circuit board, the molding base being formed into an integral structure with the lens, the supporting element, the photosensitive element, and the circuit board by means of a molding process, and the camera module and the molding photosensitive assembly thereof being capable of reducing stain sensitivity and shortening the distance of the lens plane above a light through hole of the lens to the photosensitive plane of the photosensitive element.Type: ApplicationFiled: February 8, 2018Publication date: January 2, 2020Applicant: Ningbo Sunny Opotech Co., Ltd.Inventors: Mingzhu WANG, Zhongyu LUAN, Liefeng CHEN, Duanliang CHENG, Bojie ZHAO, Takehiko TANAKA, Zhen HUANG