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Title:
OPTICAL LENS GROUP, IMAGE CAPTURING DEVICE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/087661
Kind Code:
A1
Abstract:
An optical lens group, an image capturing device, and an electronic device. The optical lens group sequentially comprises, from an object side to an image side along an optical axis, a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5), and a sixth lens (L6). The first lens (L1) has positive focal power, and an object side surface (S1) thereof is a protruding surface at the optical axis. The second lens (L2) to the fifth lens (L5) each have focal power. An object side surface (S5) of the third lens (L3) is a protruding surface at the optical axis, and an image side surface (S6) thereof, is a recessed surface at the optical axis. An object side surface (S9) of the fifth lens (L5) is a protruding surface at the optical axis, and an image side surface (S10) thereof is a recessed surface at the optical axis. The sixth lens (L6) has negative focal power. An object side surface (S11) is a protruding surface at the optical axis, and an image side surface (S12) thereof is a recessed surface at the optical axis. At least one of the object side surface (S11) and the image side surface (S12) of the sixth lens (L6) comprises at least one inflection point. The f number (FNO) of the optical lens group meets FNO ≤ 1.8. A combined focal length f123 of the first lens (L1), the second lens (L2), and the third lens (L3) and a combined focal length f456 of the fourth lens (L4), the fifth lens (L5), and the sixth lens (L6) meet -1 < f123/f456 < 0.

Inventors:
XIE HAN (CN)
LIU BINBIN (CN)
LI MING (CN)
Application Number:
PCT/CN2019/115318
Publication Date:
May 14, 2021
Filing Date:
November 04, 2019
Export Citation:
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Assignee:
NANCHANG OUFEI PREC OPTICAL PRODUCT CO LTD (CN)
International Classes:
G02B13/00; G02B9/62; G02B11/32
Domestic Patent References:
WO2014162779A12014-10-09
WO2017180362A12017-10-19
Foreign References:
CN207164341U2018-03-30
CN207424363U2018-05-29
CN206946078U2018-01-30
TWI625567B2018-06-01
US20180113282A12018-04-26
CN106610518A2017-05-03
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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