Title:
ZOOM LENS, CAMERA MODULE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/207204
Kind Code:
A1
Abstract:
Provided are a zoom lens (21), a camera module (2) and an electronic device (100). The zoom lens (21) comprises a first lens group (G1) and a second lens group (G2) which are arranged from an object side to an image side, wherein the first lens group (G1) has a negative focal power, and the second lens group (G2) has a positive focal power; the zoom lens (21) has a telephoto end and a wide-angle end, and both the first lens group (G1) and the second lens group (G2) can move along an optical axis (X) to zoom and switch between the telephoto end and the wide-angle end; the number of critical points of at least one lens in the zoom lens (21) is greater than or equal to 2; and the wide-angle end of the zoom lens satisfies the equation of 2.5 < TTLw/ImgH < 4, where TTLw is the total optical length of the zoom lens (21) when the zoom lens is at the wide-angle end, and ImgH is the image height. The zoom lens can improve the imaging quality when being applied to an electronic device.
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Inventors:
WEI LAI (CN)
Application Number:
PCT/CN2022/144201
Publication Date:
November 02, 2023
Filing Date:
December 30, 2022
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
G02B15/14; G02B15/163
Foreign References:
| CN112230404A | 2021-01-15 | |||
| CN103221868A | 2013-07-24 | |||
| CN113406780A | 2021-09-17 | |||
| CN113671677A | 2021-11-19 | |||
| US20120120503A1 | 2012-05-17 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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