Patent · US Active

Lens module

US8773770B2 · kind B2 · utility

8Cited by
9References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 12, 2013
Grant dateJul 8, 2014
Priority date—
Expiry dateDec 12, 2033

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B13/18
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

There is provided a lens module, including: a first lens having positive refractive power, an object-sided surface thereof being convex; a second lens having negative refractive power, an image-sided surface thereof being concave; a third lens having positive refractive power; a fourth lens having negative refractive power, an image-sided surface thereof being convex; and a fifth lens having negative refractive power, an image-sided surface thereof being concave, wherein the fourth lens satisfies Conditional Expression 1,

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