Patent · US Active

Optical imaging lens

US9857558B1 · kind B1 · utility

2Cited by
2References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 18, 2016
Grant dateJan 2, 2018
Priority date
Expiry dateJul 18, 2036

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B27/0025
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Present embodiments provide for an optical imaging lens. The optical imaging lens comprises a first lens element, a second lens element, a third lens element and a fourth lens element positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying at least one inequality, the optical imaging lens shows better optical characteristics and enlarge field angle while the total length of the optical imaging lens is shortened.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.