Lens structure

Abstract

The invention discloses a lens structure which comprises a first sleeve barrel, a second sleeve barrel, a third sleeve barrel, a first lens module and a second lens module, wherein the second sleeve barrel is connected with the first sleeve barrel; the third sleeve barrel is penetrated in the combination of the first sleeve barrel and the second sleeve barrel along an assembling axial line; the first sleeve barrel and the second sleeve barrel are respectively provided with a first guide groove and a second guide groove; the third sleeve barrel is provided with a first part and a second part; the first part and the second part are respectively provided with a plurality of third guide grooves and a plurality of fourth guide grooves; the first guide groove and the second guide groove surround the first part and the second part; the first lens module and the second lens module are respectively provided with a plurality of first guide parts and a plurality of second guide parts; the first guide parts are arranged in the corresponding third guide grooves in a sliding mode and are rotatablely connected in the first guide groove; and the second guide parts are arranged in the corresponding fourth guide grooves in a sliding mode and are penetrated in the second guide groove.

Description

technical field [0001] The present invention relates to an optical device, and more particularly to a lens structure. Background technique [0002] With the progress of modern video technology, image devices such as digital video recorder (DV) and digital camera (DC) have been widely used by the public. One of the core components of these imaging devices is a zoom lens, which can be clearly focused on a charge coupled device (CCD) by adjusting the zoom lens to form an image. Therefore, the optical quality of the zoom lens is closely related to the imaging quality is closely related. [0003] In a general zoom lens, it includes a front group lens barrel and a rear group lens barrel. Generally speaking, the front group lens barrel is used for focusing (focus), and the rear group lens barrel is used for adjusting zoom (zoom). action. When the lens is zooming and focusing, the front group lens barrel and the rear group lens barrel must usually be driven by different driving d...

AI Technical Summary

Problems solved by technology

[0004] It is worth mentioning that, since the existing zoom lens must be driven by different driving devices to adjust the zoom and adjust the focus, it takes a lot of time to adjust the known front group lens barrel and rear group lens barrel to the correct position. Ground focus position, resulting in poor focusing efficiency

In addition, using two sets of driving devices to drive the front group lens barrel and the rear group lens barrel will make the zoom lens have a higher product cost

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