Aligning device of zoom lens tube

Abstract

The invention provides an aligning device of a zoom lens tube, which is a small-sized aligning device with high performance for a zoom lens tube assembled into a camera, a vidicon, a mobile phone and the like. A lens group at the forefront of a zoom lens comprising sets of lens groups moves opposite to a lens group at the back of the zoom lens along the direction perpendicular to the optical axis, and a force is applied to the lens group at the forefront of the zoom lens in the direction of the optical axis by a circular elastic member with approximately same diameter with the lens group at the forefront of the zoom lens, thereby avoiding enlarging the lens tube and being capable of aligning by using a simple structure.

Description

technical field [0001] The present invention provides a compact and high-performance alignment device for zoom lens barrels incorporated in cameras, video cameras, mobile phones, etc. Background technique [0002] In recent years, digital cameras, digital video cameras, and the like have become smaller and more functional, and accordingly, zoom lenses used in these cameras have been required to be smaller and more functional. [0003] In order to make the zoom lens compact and high-performance, the optical sensitivity of the relative positional relationship between the lenses, lens groups and lens groups that constitute the zoom lens will increase in design. Therefore, the conventional lens is simply embedded in the lens barrel. The structure has been unable to meet the required optical performance. [0004] Therefore, someone has proposed a method of adjusting the centering method to obtain the desired optical performance by adjusting the relative positional relationship b...

AI Technical Summary

Problems solved by technology

[0003] In order to make the zoom lens small and high-performance, the optical sensitivity of the relative positional relationship between each lens, lens group, and lens group that constitutes the zoom lens will increase in design. Therefore, in the past, the lens was simply embedded in the lens barrel. The structure has been unable to meet the required optical performance

[0004] Therefore, someone has proposed a method of adjusting the centering method to obtain the desired optical performance by adjusting the relative positional relationship between each lens in the lens group or adjusting the relative positional relationship between each lens group among multiple lens groups. , but a mechanism for aligning is required, resulting in problems of enlarging the lens barrel and increasing the number of parts

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