Variable aperture assembly and lens module thereof

A variable aperture assembly, comprising:

• a base;
• a plurality of blades, annularly disposed on the base;
• a rotating plate, located between the base and the blades, the blades being connected to the rotating plate, and the rotating plate having a first track and a second track;
• a first driving module, corresponding to one of the first track and the second track;
• and
• a second driving module, corresponding to the other one of the first track and the second track, wherein the first driving module and the second driving module are configured to leveragingly drive the rotating plate to respectively rotate in opposite directions, to drive the blades to correspondingly move, and the first driving module and the second driving module each comprising:
• a driving member, disposed on the base;
• and
• a driven member, disposed on the base, the driven member comprising a stress-bearing portion fixed to the base, wherein when the driving member is controlled to apply a pushing force to the driven member, the stress-bearing portion correspondingly generates a restoring force, and the pushing force and the restoring force cooperatively drive the driven member to contact one of the first track and the second track.