Patents Assigned to ANHUI CHANGGENG OPTICS TECHNOLOGY CO., LTD.
  • Patent number: 10302919
    Abstract: A mirrorless large-aperture ultra wide-angle lens relates to a wide-angle lens of which a full angle of view is over 100 degrees, and sequentially comprises two parts from an object side to an image side: a first lens group Gr1 having a positive diopter and a second lens group Gr2 having a positive diopter; when an object moves closer from infinity, the first lens group Gr1 is fixed, the second lens group Gr2 moves towards the object to implement an ultra wide-angle microlens which is in focus and meets the following conditional expression: 2.0?F1/F2?10, wherein F1: a focal length of the first lens group Gr1; and F2: a focal length of the first lens group Gr2. The Invention can provide a miniaturized, high-performance, low-cost ultra wide-angle lens whose angle of view is over 100 degrees, achieving strong universality.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: May 28, 2019
    Assignee: ANHUI CHANGGENG OPTICS TECHNOLOGY CO., LTD.
    Inventor: Xiaohua Zhang
  • Patent number: D850867
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 11, 2019
    Assignee: ANHUI CHANGGENG OPTICS TECHNOLOGY CO., LTD.
    Inventor: Wei-Chih Lin