Zoom lens control mechanism
AssigneeAltek Corporation
InventorsYu-Cheng Huang, Tzu-Chih Lin
Life of this patent
Estimating the term…
Abstract
A zoom lens control mechanism for changing a focal distance in an optical axis of a first lens set includes a zoom lens base, a lens support, and a switch device. The zoom lens base has an image pickup opening disposed in the optical axis of the first lens set. The lens support is disposed on the zoom lens base, with one end rotatably disposed on the zoom lens base, and the other end with a second lens set. Herein, when the lens support rotates, the second lens set shifts between an active position and a leaving position along the surface of the zoom lens base. When the second lens set is at the active position, the focal distance may be changed according to a curvature of the second lens set.
Claims12
A zoom lens control mechanism, for changing a focal distance in an optical axis of a first lens set, comprising:
- a zoom lens base, disposed at one side of the first lens set and having an image pickup opening, wherein the image pickup opening is in the optical axis of the first lens set;
- a first lens support, one end of the first lens support is rotatably disposed on the zoom lens base and the other end of the first lens support is with a second lens set;
- a first switch device, disposed on the zoom lens base, for controlling the rotation of the first lens support, such that the second lens set shifts between an active position and a leaving position along the surface of the zoom lens base, wherein the active position is corresponding to the image pickup opening, and the leaving position deviates from the image pickup opening;
- a second lens support, one end of the second lens support is rotatably disposed on the zoom lens base and the other end of the second lens support is with a third lens set;
- and
- a second switch device, for controlling the rotation of the second lens support along the surface of the zoom lens base, such that the third lens set moves between the active position and the leaving position.
Dependencies are inferred from the claim text.