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).

  • Publication number: 20240159991
    Abstract: 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: Application
    Filed: April 18, 2023
    Publication date: May 16, 2024
    Inventors: Weiwang CHEN, Fan YANG, Fujian DAI, Liefeng ZHAO
  • Patent number: 11974033
    Abstract: 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: Grant
    Filed: July 10, 2019
    Date of Patent: April 30, 2024
    Assignee: NINGBO SUNNY OPOTECH CO., LTD.
    Inventors: Shuijia Chu, Lin Liu, Liefeng Chen, Chao Ye, Xiaoming Ding
  • Publication number: 20240069308
    Abstract: 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: Application
    Filed: April 14, 2023
    Publication date: February 29, 2024
    Inventors: Leilei Fu, Xujiong Wu, Qi Chen, Fujian Dai, Liefeng Zhao
  • Publication number: 20220187561
    Abstract: 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: Application
    Filed: March 11, 2020
    Publication date: June 16, 2022
    Inventors: Liefeng CHEN, Zhewen MEI, Takehiko TANAKA, Lin LIU
  • Publication number: 20220107480
    Abstract: 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: Application
    Filed: January 3, 2020
    Publication date: April 7, 2022
    Inventors: Liefeng CHEN, Zhewen MEI, Takehiko TANAKA, Xinxiang SUN, Lin LIU
  • Publication number: 20210337093
    Abstract: 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: Application
    Filed: July 10, 2019
    Publication date: October 28, 2021
    Inventors: Shuijia CHU, Lin LIU, Liefeng CHEN, Chao YE, Xiaoming DING
  • Publication number: 20210333503
    Abstract: 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: Application
    Filed: July 17, 2019
    Publication date: October 28, 2021
    Applicant: NINGBO SUNNY OPOTECH CO., LTD.
    Inventors: Takehiko TANAKA, Liefeng CHEN, Lin LIU, Chunmei LIU
  • Publication number: 20210318512
    Abstract: 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: Application
    Filed: July 10, 2019
    Publication date: October 14, 2021
    Inventors: Takehiko TANAKA, Heng JIANG, Lin LIU, Liefeng CHEN
  • Publication number: 20210203818
    Abstract: 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: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Applicant: Ningbo Sunny Opotech Co., Ltd.
    Inventors: Mingzhu WANG, Zhongyu LUAN, Liefeng CHEN, Duanliang CHENG, Bojie ZHAO, Takehiko TANAKA, Zhen HUANG
  • Patent number: 10979610
    Abstract: 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: Grant
    Filed: February 8, 2018
    Date of Patent: April 13, 2021
    Assignee: NINGBO SUNNY OPOTECH CO., LTD.
    Inventors: Mingzhu Wang, Zhongyu Luan, Liefeng Chen, Duanliang Cheng, Bojie Zhao, Takehiko Tanaka, Zhen Huang
  • Publication number: 20200007726
    Abstract: 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: Application
    Filed: February 8, 2018
    Publication date: January 2, 2020
    Applicant: Ningbo Sunny Opotech Co., Ltd.
    Inventors: Mingzhu WANG, Zhongyu LUAN, Liefeng CHEN, Duanliang CHENG, Bojie ZHAO, Takehiko TANAKA, Zhen HUANG