| 摘要 |
An exemplary lens module includes a holder, a lens barrel, a cover having a through hole, a restricting member having a slit, a handle extending from the lens barrel and a resilient. The lens barrel is accommodated in the holder capable of moving along a central axis of the holder. The cover covers the lens barrel and is detachably fixed on the holder. The restricting member is over the cover. The handle penetrates the through hole and the slit. The resilient member is sandwiched between the cover and the lens barrel, capable of changing the length thereof under an external force and recovering the original length with the external force withdrawn, such that a focal length of the lens module is adjustable by moving the handle in and along the slit. |
