Patent ID: 11971608
Assignee: NINGBO SUNNY AUTOMOTIVE OPTECH CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. An optical lens assembly, comprising:
a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens, which are arranged sequentially from an object side to an image side of the optical lens assembly along an optical axis,
wherein,
each of the first lens, the second lens and the sixth lens has negative refractive power;
each of the third lens, the fourth lens, the fifth lens and the seventh lens has positive refractive power;
the second lens and the third lens are cemented to each other to form a first cemented lens; and
the fifth lens, the sixth lens and the seventh lens are cemented to form a second cemented lens;
wherein a distance TTL along the optical axis from a center of an object-side surface of the first lens to an imaging plane of the optical lens assembly and a total focal length F of the optical lens assembly satisfy TTL/F≤4.8.