Patent · US Active

Camera lens group

US10983311B2 · kind B2 · utility

1Cited by

0References

18Claims

0Family size

Assignee

Zhejiang Sunny Optical Co., Ltd · CN

Inventors

Kaiyuan Zhang · Ningbo City, CN
Ming Li · Ningbo City, CN
Bo Song · Suwon-si, KR

Key dates

Filing date	Dec 21, 2018
Grant date	Apr 20, 2021
Priority date	—
Expiry date	May 2, 2039

Classification

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

Abstract

The present disclosure discloses a camera lens group. The camera lens group sequentially includes, from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has a positive refractive power and a convex object-side surface. The second lens has a positive refractive power and a convex object-side surface. The third lens has a refractive power and a concave image-side surface. The fourth lens has a refractive power. The fifth lens has a refractive power. The sixth lens has a positive refractive power and a convex image-side surface. The seventh lens has a negative refractive power, and a concave object-side surface and a concave image-side surface. A total effective focal length f and an entrance pupil diameter EPD of the camera lens group satisfy: f/EPD≤1.60.

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