Lens module and camera module

Abstract

The invention provides a lens module comprising: a mirror seat provided with female threads on the inner wall; a first limit ring with male threads on the outer wall disposed screwably at the first position of the mirror seat inner wall; a second limit ring with male threads on the outer wall disposed screwably at the second position of the mirror seat inner wall; a cylinder with an outer diameter bigger than the inner diameters of the first limit ring and the second limit ring; at least one glasses lens contained in the cylinder, a first magnetic force generator disposed connectingly on the cylinder; and a second magnetic force generator fixed on the second limit ring. The first magnetic force generator and the cylinder are repulsed to the first limit ring when the facing magnetic pole of the second magnetic force generator and that of the first magnetic force generator are same; the first magnetic force generator and the cylinder are attracted to the second limit ring when the facing magnetic pole of the second magnetic force generator and that of the first magnetic force generator are opposite. The invention also provides a camera die set using the lens module.

Description

technical field [0001] The invention relates to a lens module and a camera module using the lens module. Background technique [0002] A camera module usually includes at least one lens module and an image sensor opposite to the lens module, and is widely used in various camera devices. The camera module is built into various portable electronic devices, such as Mobile phones, camcorders, and computers are favored by many consumers. [0003] Taking the camera module built in the mobile phone as an example, due to the overall size limitation of the mobile phone, most of the camera modules in the mobile phone currently only contain a single lens module, which is a single focal length form. In this way, the camera module in the mobile phone can only clearly capture objects within a fixed range, for example, within 1 meter. And the camera module in some mobile phones, it designs an auto-focus drive structure to this single lens module, so that this lens module can move to shoo...

AI Technical Summary

Problems solved by technology

However, the autofocus driving structure, such as a motor, is often complicated in structure, and the cost of the entire camera module is increased a lot; It is designed as a group, that is, to drive these lens modules to other preset shooting positions to achieve clear shooting of the scene within the above fixed range

In this way, when the entire lens module or more lens modules deviate from the focal length specification due to differences in lens forming and assembly, the autofocus drive structure can only drive these lens modules to a preset position. Sometimes the shooting functions of these lens modules are not as expected, that is, the quality of the captured images is often not as expected

However, the readjustment or design of these autofocus drive structures must be troublesome.

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