Patent ID: 11947092
Assignee: SINTAI OPTICAL (SHENZHEN) CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 16:
17. The lens assembly as claimed in claim 1, wherein:
the second lens group comprises a variable stop; and
the lens assembly satisfies at least one of following conditions:

10 mm<A+L1D<26 mm;

12 mm<L1D+StopD<16 mm;

0.8<f/L1D<4.2;

wherein A is an interval from a second side surface of the lens closest to the second side in the first lens group to the variable stop along the axis, L1D is an effective optical diameter of the lens closest to the first side in the first lens group along the axis, StopD is a diameter of the variable stop, and f is an effective focal length of the lens assembly.