Patent ID: 8854741
Filing Date: 2014-10-07
Classification: G02B

Abstract:
1. A zoom lens adjustment structure, comprising: a substrate; a focus device mounted on the substrate, comprising; a cam lens barrel set at the inner side of the outside guide lens barrel; a plurality of active lens barrels sandwiched between the outside guide lens barrel and the cam lens barrel, wherein the active lens barrels comprises a first lens barrel group, a second lens barrel group, a third lens barrel group, a first lens group set in the first lens barrel group, a second lens group set in the second lens barrel group, and a third lens group set in the third lens barrel group; a first inner guide lens barrel sandwiched between the outside guide lens barrel and the cam lens barrel, the first lens barrel group sandwiched between the cam lens barrel and the first inner guide lens barrel, the second lens barrel group set on an inner side of the cam lens barrel, the third lens barrel group received in the stationary lens barrel and opposing the aperture of the substrate; a second inner guide lens barrel sandwiched between the second lens barrel group and the cam lens barrel, both the first inner guide lens barrel and the second inner guide lens barrel connected to the cam lens barrel, the first inner guide lens barrel simultaneously connected to the first lens barrel group, and the second inner guide lens barrel connected to the second lens barrel group; a gear barrel sandwiched between the stationary lens barrel and the outside guide lens barrel, an internal surface of the gear barrel connected with the outside guide lens barrel, and a driving device positioned lateral to the stationary lens barrel, to drive the focus device to adjust position of the movable lens barrels, the driving device comprising a motor and a gear group, an outer surface of the gear barrel connected with the gear group, the gear group configured for driving the gear barrel to rotate, the gear barrel being able to drive the cam lens barrel to rotate wherein a rotation of the cam lens barrel drives the first inner guide lens barrel and the second inner guide lens barrel to rotate, a rotation of the first inner guide lens barrel drives the connected first lens barrel group, and a rotation of the second inner guide lens barrel drives the connected second lens barrel group.