Patent ID: 11921348
Assignee: LARGAN PRECISION CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A lens module with auto-focusing mechanism, comprising:
a plastic lens barrel comprising:
a front end portion comprising a front end surface, a front end hole and a circular wall portion surrounding the front end hole, the circular wall portion with inclined portions, the inclined portions are for forming a tip portion surrounding the front end hole, and an acute angle between one of the inclined portions and an optical axis of the lens module is greater than 0 degrees and smaller than 90 degrees;
a rear end portion comprising a rear end opening;
an outer side portion connecting the front end portion and the rear end portion; and
a coil regulating structure located on the outer side portion of the plastic lens barrel;
a lens assembly disposed in the plastic lens barrel, and comprising a plurality of lens elements, which are in direct contacted with the plastic lens barrel; and
an auto-focusing mechanism connected to the plastic lens barrel, and comprising:
a coil connected and positioned to the coil regulating structure; and
at least one elastic member connected to the outer side portion of the plastic lens barrel;
wherein the coil regulating structure is integrally formed with the plastic lens barrel;
wherein the plastic lens barrel is a non-threaded structure;
wherein the coil regulating structure is located on two sides of the coil along a direction parallel to an optical axis of the lens assembly, and the coil regulating structure is overlapped with the coil along the direction parallel to the optical axis from both of the two sides of the coil.