Patents Examined by Wen Huang
  • Patent number: 11363950
    Abstract: Fundus imaging includes selective illumination and exposure of an image sensor array. Fundus imaging systems and methods disclosed herein are wide field of view imaging typically conducted under non-mydriatic conditions. At a first time, an illumination unit illuminates a first portion of an eye fundus. At a second time, the illumination unit illuminates a second portion of the eye fundus. One or more fundus images are captured during illumination.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: June 21, 2022
    Assignee: Welch Allyn, Inc.
    Inventor: Ynjiun Paul Wang
  • Patent number: 11347031
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 1.00?f1/f2?3.00; and 2.00?(R1+R2)/(R1?R2)?15.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 10, 2019
    Date of Patent: May 31, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Kaoru Yamazaki, Lei Zhang, Yanmei Wang, Yi Ji
  • Patent number: 11340435
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 1.50?f1/f?3.00; and 8.50?R9/d9?12.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: May 24, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Wen Sun, Lei Zhang
  • Patent number: 11340430
    Abstract: An optical lens system includes nine 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, a seventh lens element, an eighth lens element and a ninth lens element. At least one lens surface of the seventh lens element, the eighth lens element and the ninth lens element has at least one critical point in an off-axis region thereof, and each of the seventh lens element, the eighth lens element and the ninth lens element has at least one lens surface being aspheric.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: May 24, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen
  • Patent number: 11340433
    Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The camera optical lens satisfies following conditions: 1.00?f1/f?1.50 and 25.00?R5/d5?35.03, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; R5 denotes a curvature radius of an object-side surface of the third lens; and d5 denotes an on-axis thickness of the third lens. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 10, 2019
    Date of Patent: May 24, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Chenxiyang Chen, Lei Zhang
  • Patent number: 11340434
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: ?3.01?f1/f2??1.00; and 12.00?(R1+R2)/(R1?R2)?25.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: May 24, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Yutong Guo, Lei Zhang, Yanmei Wang, Zixuan Huang
  • Patent number: 11333858
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 1.40?f1/f3?5.00; and 2.50?R5/R6?6.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 10, 2019
    Date of Patent: May 17, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Hiroyuki Teraoka, Lei Zhang, Yanmei Wang, Shuang Wu
  • Patent number: 11333859
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 5.00?f1/f?10.00; and 5.00?R3/d3?20.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: May 17, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Yonghua Ji, Lei Zhang, Yanmei Wang, Yingnan Zhang
  • Patent number: 11314058
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 3.00?f1/f?10.00; and 5.00?R11/d11?15.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 26, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Xiaofeng Xiong, Lei Zhang, Yanmei Wang, Yingnan Zhang
  • Patent number: 11314055
    Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens and a sixth lens. The camera optical lens satisfies following conditions: 2.00?f1/f?6.00 and 5.00?R11/d11?8.00, where f1 denotes a focal length of the first lens; f denotes a focal length of the camera optical lens; R11 denotes a curvature radius of an object-side surface of the sixth lens; and d11 denotes an on-axis thickness of the sixth lens. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: April 26, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Wen Sun, Lei Zhang
  • Patent number: 11314047
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: ?10.00?f2/f3??5.00; and 1.20?d2/d4?3.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 24, 2019
    Date of Patent: April 26, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Jian Ma, Lei Zhang
  • Patent number: 11314057
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 1.10?f1/f?3.00; and ?25.00?R9/d9??10.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 26, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Xiaofeng Xiong, Lei Zhang, Yanmei Wang, Yingnan Zhang
  • Patent number: 11314049
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: an aperture; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. The camera optical lens satisfies following conditions: 1.68?n2?2.20; and 15.00?f3/f, where f denotes a focal length of the camera optical lens; n2 denotes a refractive index of the second lens; and f3 denotes a focal length of the third lens.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: April 26, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventor: Chunhuan Fang
  • Patent number: 11314056
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 1.10?f1/f?3.00; and ?20.00?R11/d11??11.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 26, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Yutong Guo, Lei Zhang, Yanmei Wang, Zixuan Huang
  • Patent number: 11314059
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens; a third lens; a fourth lens; a fifth lens; a sixth lens; and a seventh lens. The camera optical lens satisfies following conditions: 1.51?f1/f?2.50, 1.70?n1?2.20, ?2.00?f3/f4?0.00; 3.00?(R13+R14)/(R13?R14)?10.00; and 1.70?n2?2.20. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 26, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Xuqi Bian, Lei Zhang
  • Patent number: 11314043
    Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is with negative refractive power. The second lens is with negative refractive power. The third and fourth lenses are with positive refractive power. The fifth lens is with negative refractive power. The sixth lens is with positive refractive power. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are arranged in order from an object side to an image side along an optical axis. The lens assembly satisfies: 4.9?TTL/f?11.5; wherein TTL is an interval from an object side surface of the first lens to an image plane along the optical axis and f is an effective focal length of the lens assembly.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: April 26, 2022
    Assignees: SINTAI OPTICAL (SHENZHEN) CO., LTD., ASIA OPTICAL CO., INC.
    Inventors: Tao Fu, Jian-Wei Lee
  • Patent number: 11307387
    Abstract: An optical imaging system 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 and the third lens each has a positive refractive power. The second lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens each has a positive or a negative refractive power. An object-side surface of the first lens is convex, and an image-side surface thereof is concave. An image-side surface of the second lens is concave. An object-side surface of the third lens is convex. An object-side surface of the seventh lens is convex, and an image-side surface thereof is concave. A total effective focal length f of the system and an entrance pupil diameter EPD of the system satisfy: f/EPD?1.5.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: April 19, 2022
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventor: Lin Huang
  • Patent number: 11307388
    Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens and a sixth lens. The camera optical lens satisfies following conditions: 4.50?f1/f2?8.00 and ?19.00?(R1+R2)/(R1?R2)??13.00, where f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; R1 denotes a curvature radius of an object-side surface of the first lens; and R2 denotes a curvature radius of an image-side surface of the first lens. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: April 19, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Takaaki Teranishi, Lei Zhang
  • Patent number: 11300715
    Abstract: The present invention relates to a high resolution optical system. The optical system of the present invention includes, sequentially from an object side, a first lens having a positive refractive power and an object-side surface convex toward the object side; a second lens having a negative refractive power and an upwardly concave upper surface; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power and an upwardly convex upper surface; and a six lens having a negative refractive power and an upwardly concave upper surface.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: April 12, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Phil Ho Jung, Il Yong Park
  • Patent number: 11287616
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens sequentially including, from an object side to an image side, first to seventh lenses, the first and sixth lenses each having a positive refractive power and the second and seventh lenses each having a negative refractive power. The camera optical lens satisfies following conditions: ?0.49?f1/f2??0.25; 3.00?f1/(f6+f7)?4.50; and 2.00?d4/d6?10.00, where f1, f2, f6 and f7 denote focal lengths of the first, second, sixth and seventh lenses, respectively; d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens; and d6 denotes an on-axis distance from an image side surface of the third lens to an object side surface of the fourth lens. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: March 29, 2022
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Kaoru Yamazaki, Lei Zhang, Yuanshan Cui