Position tuning structure and adjustable optical film device comprising the same

摘要

A position tuning structure is disclosed, which comprises a holding tube having a side hole extending through the wall of the holding tube; a nut locating in the holding tube and connecting to the side hole; a tuning element threadedly engaged in the nut; an elastic rod locating in the holding tube and pushed by the tuning element; a supporting element locating in the holding tube and pushed by the elastic rod; and an elastic element locating in the holding tube and connecting to the supporting element. Also, an adjustable optical film device comprising the above position tuning structure is disclosed.