US 11,940,600 B2
Camera lens assembly
Biao Xu, Ningbo (CN); and Kaiyuan Zhang, Ningbo (CN)
Assigned to ZHEJIANG SUNNY OPTICAL CO., LTD, Ningbo (CN)
Filed by ZHEJIANG SUNNY OPTICAL CO., LTD, Ningbo (CN)
Filed on Sep. 2, 2020, as Appl. No. 17/010,206.
Application 17/010,206 is a continuation of application No. PCT/CN2019/081357, filed on Apr. 4, 2019.
Claims priority of application No. 201810709995.7 (CN), filed on Jul. 2, 2018.
Prior Publication US 2020/0400924 A1, Dec. 24, 2020
Int. Cl. G02B 13/00 (2006.01); G02B 9/64 (2006.01); G02B 13/06 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 13/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A camera lens assembly, comprising, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens,
wherein,
the first lens has negative refractive power;
the second lens has positive refractive power and a concave image-side surface;
the third lens has positive refractive power and a convex image-side surface;
the fourth lens has refractive power;
the fifth lens has refractive power;
the sixth lens has positive refractive power; and
the seventh lens has negative refractive power,
wherein 2<f2/f<4.5, where f2 is an effective focal length of the second lens, and f is a total effective focal length of the camera lens assembly.