Patent · US Active

Optical imaging system

US10901185B2 · kind B2 · utility

0Cited by

6References

18Claims

0Family size

Assignee

Zhejiang Sunny Optical Co., Ltd · CN

Inventors

Kaiyuan Zhang · Ningbo City, CN
Yuanlin Jia · Lo Wu, CN

Key dates

Filing date	Dec 19, 2018
Grant date	Jan 26, 2021
Priority date	—
Expiry date	Apr 26, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/04
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present disclosure discloses an optical imaging system. The optical imaging system includes, sequentially along an optical axis from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. Each of the first lens and the fourth lens may have a negative refractive power. Each of the second lens and the sixth lens may have a positive refractive power or a negative refractive power. An effective focal length f3 of the third lens and an effective focal length f5 of the fifth lens may satisfy: 0<f3/f5<0.8.

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