Patent · US Active

Optical lens assembly

US10962744B2 · kind B2 · utility

1Cited by
0References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 27, 2019
Grant dateMar 30, 2021
Priority date
Expiry dateSep 27, 2039

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B13/004
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An optical lens assembly includes first, second, third, and fourth lens elements arranged in order from an object side to an image side along an optical axis. Each lens element has an object-side surface and an image-side surface. The object-side surface of the first lens element has a convex portion in a vicinity of a periphery. The second lens element has negative refracting power. The object-side surface of the third lens element has a concave portion in a vicinity of a periphery. The image-side surface of the fourth lens element has a convex portion in a vicinity of a periphery.

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