Patent · US Active

Optical imaging lens

US10429621B2 · kind B2 · utility

8Cited by

0References

20Claims

0Family size

Assignee

Genius Electronic Optical (Xiamen) Co., Ltd. · CN

Inventors

Jia-Sin Jhang · Taichung, TW
Maozong Lin · Fujian, CN
Feng Li · Beijing, CN

Key dates

Filing date	Mar 12, 2018
Grant date	Oct 1, 2019
Priority date	—
Expiry date	Mar 12, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B9/64
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical imaging lens including a first lens element to an eighth lens element arranged in sequence from an object side to an image side along an optical axis is provided. The first lens element has positive refracting power. At least one of the object-side surface and the image-side of the second lens element is an aspheric surface. At least one of the object-side surface and the image-side of the third lens element is an aspheric surface. At least one of the object-side surface and the image-side of the fourth lens element is an aspheric surface. The object-side surface and the image-side of the fifth lens element are both aspheric surfaces. The object-side surface and the image-side of the sixth lens element are both aspheric surfaces. An optical axis region of the image-side surface of the seventh lens element is concave. An optical axis region of the object-side surface of the eighth lens element is concave.

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