WIDE-ANGLE LENS, IMAGING DEVICE, AND UNMANNED AERIAL VEHICLE

Title:

WIDE-ANGLE LENS, IMAGING DEVICE, AND UNMANNED AERIAL VEHICLE

Document Type and Number:

WIPO Patent Application WO/2019/144382

Kind Code:

A1

Abstract:

A wide-angle lens (10), an imaging device (100), and an unmanned aerial vehicle (1000). The wide-angle lens (10) comprises a first lens group (12) and a second lens group (14) from the object side to the image side in sequence. The first lens group (12) comprises, from the object side to the image side in sequence, a first lens (L2) having negative refractive power, a second lens (L3) having negative refractive power, and a third lens (L4) having positive refractive power. The second lens group (14) comprises, from the object side to the image side in sequence, a fourth lens (L5) having positive refractive power, a fifth lens (L6) having positive refractive power, a sixth lens (L7) having negative refractive power, and a seventh lens (L8) having positive refractive power. The wide-angle lens (10) satisfies the following relation: H2/G2R2<1.8, wherein H2 is the aperture of the first lens (L2) at the image side, and G2R2 is the radius of curvature of the first lens (L2) at the image side.

Inventors:

CHEN YUAN (CN)

Application Number:

PCT/CN2018/074334

Publication Date:

August 01, 2019

Filing Date:

January 26, 2018

Export Citation:

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Assignee:

SZ DJI TECHNOLOGY CO LTD (CN)

International Classes:

G02B13/06; G02B13/18

Foreign References:

CN204855918U	2015-12-09
CN106443990A	2017-02-22
CN105607234A	2016-05-25
CN106772941A	2017-05-31
CN104423016A	2015-03-18
CN105372789A	2016-03-02

Other References: