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

Claim 9:
10. The optical lens assembly according to claim 1, wherein the optical lens assembly satisfies at least one of:
TTL/F≤4.5, TTL being a distance along the optical axis from a center of the object-side surface of the first lens to an imaging plane of the optical lens assembly, and F being a total focal length;
0.602≤|R7/R8|≤3.5, R7 being a radius of curvature of the object-side surface of the fourth lens and R8 being a radius of curvature of the image-side surface of the fourth lens;
0.08≤D12/TTL≤0.232, D12 being an air gap between the first lens and the second lens; or
2.666≤F567/F≤8, F567 being a focal length of a cemented lens consisted of the fifth lens, the sixth lens and the seventh lens.