Patent ID: 8456773

Claim:
A lens module, comprising: a holder including a barrel defining a receiving space and axially extending sliding slots; a connecting loop received in the receiving space; an adjustment ring defining inner and outer peripheral surfaces and a bottom surface, the adjustment ring further defining guiding grooves and a stopping slot, the guiding grooves defined in the inner peripheral surface and extending from the bottom surface of the adjustment ring towards a top of the adjustment ring, the stopping slot extending along a circumference direction of the adjusting ring and communicating with the outer peripheral surface and the inner peripheral surface of the adjustment ring, the inner peripheral surface of the adjustment ring sleeved over the barrel; engaging pins secured with the connecting loop, an end of each engaging pin passing through a corresponding sliding slot and inserted into a corresponding guiding groove; a fixing pin passing through the stopping slot and fixed with the barrel; and a lens unit secured with the connecting loop; wherein when the adjustment ring is rotated relative to the barrel, the fixing pin rotates relative to the adjustment ring along the stopping slot to prevent the adjustment ring from axially moving, the engaging pins slide along the guiding grooves and the sliding slots to cause the connecting loop with the lens unit to axially move without rotating relative to the holder.