Lens module

Abstract

The invention relates to a lens module which comprises a lens seat and a lens which can be movably arranged at the lens seat. The lens module further comprises a retainer fixed at the outer wall of the lens, and a limit element arranged at the lens seat, the limit element is provided with a first retainer part and a second retainer part which are oppositely arranged, the first retainer part and the second retainer part are used for limiting the retainer, the retainer can only move along a direction parallel to the optical axis of the lens between the first retainer part and the second retainer part, and the retainer can respectively prop against the first retainer part or the second retainer part to position the lens. The lens module realizes the exact focusing by positioning the lens with the limit element, thus avoiding a sleeve structure of the prior art, and further saving the use space of the lens module, reducing the volume of the lens module, and causing the lens module to be miniaturized, light and thin.

Description

Lens module technical field The invention relates to a lens module, in particular to a two-stage focusing lens module. Background technique In recent years, with the development of multimedia technology, the scope of application of lens modules has become wider and wider, such as being applied to electronic products such as digital cameras, video cameras, and mobile phones with camera functions. While the image quality of digital cameras, video cameras and mobile phones with camera functions has been continuously improved, their structures are becoming more and more thinner and smaller. In an article titled "Two-phaseDirect-driveMotorBuiltIntoACamcordersZoomLensBarrel" published on Consumer Electronics in February 1995, Takano revealed a miniaturized lens module. A lens module in the prior art includes a lens, a sleeve set on the lens, a mirror base and an image sensor. The lens includes a lens barrel and a lens group arranged in the lens barrel, the lens barrel and the...

AI Technical Summary

Problems solved by technology

The permanent magnet is directly supported by the electromagnetic coil, which may easily cause the permanent magnet to collide with the electromagnetic coil and damage the permanent magnet or the electromagnetic coil, thereby shortening the service life of the lens module

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