Patent · US Active

Optical system, lens module, and electronic device

US12117594B2 · kind B2 · utility

0Cited by

1References

18Claims

0Family size

Assignee

JIANGXI JINGCHAO OPTICAL CO., LTD. · CN

Inventors

Binbin Liu · Beijing, CN
Ming Li · Ningbo City, CN
Hairong ZOU · Nanchang, CN

Key dates

Filing date	Sep 3, 2021
Grant date	Oct 15, 2024
Priority date	—
Expiry date	Mar 29, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG02B5/208
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical system, a lens module, and an electronic device are provided. The optical system includes, in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens with, and a seventh lens. The first lens has an object-side surface which is convex at an optical axis and an image-side surface which is concave at the optical axis and at a circumference. The second lens has an object-side surface which is convex at the optical axis and an image-side surface which is concave at the optical axis and at a circumference. The seventh lens has an image-side surface, which is concave at the optical axis and has at least one inflection point. The optical system satisfies the following expression: f/EPD<1.7.

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