OPTICAL IMAGING LENS AND IMAGING DEVICE

WIPO Patent Application WO/2021/238648

A1

Provided are an optical imaging lens and an imaging device. The optical imaging lens sequentially comprises, from an object side to an imaging surface, a first lens having a negative focal power; a second lens having a negative focal power; a third lens having a positive focal power; a diaphragm; a fourth lens having a negative focal power; a fifth lens having a positive focal power; a sixth lens having a positive focal power, and a seventh lens having a negative focal power, with the sixth lens and the seventh lens forming a bonded body; an eighth lens having a positive focal power; and an optical filter arranged between the eighth lens and the imaging surface, wherein the first lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all glass spherical lenses, and the second lens and the eighth lens are both glass aspheric lenses. The optical imaging lens provided in the present invention can not only effectively correct secondary chromatic aberration, but also correct an astigmatic aberration of a peripheral field of view, which achieves a higher imaging quality, good thermal stability and mechanical strength, and facilitates operation in an extreme environment.

WEI WENZHE (CN)
ZENG JIYONG (CN)

PCT/CN2021/093200

December 02, 2021

May 12, 2021

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JIANGXI LIANCHUANG ELECT CO LTD (CN)

G02B13/18; G02B13/00

CN111367061A	2020-07-03
CN110596860A	2019-12-20
CN110568594A	2019-12-13
CN107132643A	2017-09-05
CN104145201A	2014-11-12
CN110221401A	2019-09-10
JPH08320435A	1996-12-03

SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)

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