Lens group, fingerprint identification device and electronic equipment

Lens group, fingerprint identification device and electronic equipment

  • CN 208,953,768 U
  • Filed: 11/08/2018
  • Issued: 06/07/2019
  • Est. Priority Date: 11/08/2018
  • Status: Active Grant
First Claim
Patent Images

1. a kind of lens group, which is characterized in that including the first camera lens and the second camera lens set gradually from the object side to the image side,In:

  • First camera lens includes the first lens of negative power, and first lens are the S-shaped bent moon eyeglass that object side is convex surface,It is aspherical for having at least one face in two faces of first lens;

    Second camera lens includes the second lens of positive light coke, and second lens are biconvex eyeglass, second lensTwo faces in have at least one face be it is aspherical;

    Wherein, the parameter of the lens group meets the first relationship, so that the field angle FOV of the lens group is greater than first threshold,And the length of the lens group is made to be less than second threshold,Wherein, the parameter of the lens group includes at least two in following;

    the focal length f of the lens group, first lensFocal length f1, second lens focal length f2, first lens towards object side one side radius of curvature R 1, described firstLens towards image side radius of curvature R 2, second lens towards object side while radius of curvature R 3 and describedThe radius of curvature R 4 towards image side one side of two lens.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×