US 12,393,047 B2
Zoom lens, camera module, and electronic device
Qing Xu, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Jun. 10, 2022, as Appl. No. 17/837,837.
Application 17/837,837 is a continuation of application No. PCT/CN2020/141298, filed on Dec. 30, 2020.
Claims priority of application No. 201911417951.8 (CN), filed on Dec. 31, 2019.
Prior Publication US 2022/0299788 A1, Sep. 22, 2022
Int. Cl. G02B 27/64 (2006.01); G02B 7/02 (2021.01); G02B 7/10 (2021.01); G02B 7/18 (2021.01); G02B 13/00 (2006.01); G02B 15/14 (2006.01); G03B 5/00 (2021.01); G03B 13/36 (2021.01)
CPC G02B 27/646 (2013.01) [G02B 7/021 (2013.01); G02B 7/102 (2013.01); G02B 7/1805 (2013.01); G02B 13/0065 (2013.01); G02B 15/14 (2013.01); G03B 5/00 (2013.01); G03B 13/36 (2013.01); G02B 15/143503 (2019.08); G03B 2205/003 (2013.01); G03B 2205/0046 (2013.01); G03B 2205/0069 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A zoom lens, comprising:
a housing;
a first lens assembly, a second lens assembly and a third lens assembly, wherein the first lens assembly, the second lens assembly and the third lens assembly are arranged in the housing in sequential order along an optical axis of the first lens assembly; and
a first driving chip, comprising: a first control end, a second control end, a third control end and a fourth control end;
wherein the first control end is configured to control the second lens assembly to move relative to the first lens assembly along the optical axis to realize zooming of the zoom lens, and the second control end is configured to control the third lens assembly to move relative to the first lens assembly along the optical axis to realize zooming of the zoom lens; and
wherein the third control end is configured to control the third lens assembly to move relative to the first lens assembly along the optical axis under a first target focal length in a short focal state to realize focusing of the zoom lens, the fourth control end is configured to control the third lens assembly to move relative to the first lens assembly along the optical axis under a second target focal length in a long focal state to realize focusing of the zoom lens, and the first target focal length is different from the second target focal length;
a moving accuracy of the third lens assembly during the focusing is higher than a moving accuracy of each of the second lens assembly and the third lens assembly during the zooming, and a travel range of the third lens assembly during the focusing is less than a travel range of each of the second lens assembly and the third lens assembly during the zooming.