OPTICAL LENS BARREL AND OPTICAL LENS MODULE HAVING THE SAME

摘要

An optical lens module includes a barrel holder, an optical lens barrel, a first thread, a second thread and a plurality of engaging protrusions. The first thread is formed on one of the barrel holder and the optical lens barrel. The second thread is formed on the other one of the barrel holder and the optical lens barrel. The engaging protrusions extend from the root of the first thread for contact with the crest of the second thread. Each of the engaging protrusions has an end surface disposed between the crest and the root of the first thread. A clearance is formed between the crest of the first thread and the root of the second thread and between the root of the first thread and the crest of the second thread.

主权项

1. An optical lens barrel comprising:
a barrel wall extending along an axial direction; a thread formed on said barrel wall and having a plurality of turns, a root and a crest that extend helically along the axial direction; and a plurality of spaced-apart engaging protrusions extending from said root of said thread, each of said engaging protrusions having an end surface disposed between said crest and said root of said thread.