Lens driving device and image pickup device

Abstract

The invention belongs to the technical field of focusing motors, and particularly relates to a lens driving device and a camera device. The technical problem that an existing guide is stuck is solved. The lens driving device comprises a base; the telescopic lens barrel is used for bearing a lens; the guide post bracket is sleeved on the periphery of the telescopic lens cone and is fixed on the corner upright post of the base; a plurality of guide columns are arranged; one end of each guide pillar is fixed on the base, and the other end of each guide pillar is fixed on the guide pillar bracket; the number of the self-adaptive guide pillar elastic clamps is equal to that of the guide pillars; the self-adaptive guide pillar elastic clamps are fixed on the telescopic lens barrel, and each guide pillar is sleeved with one self-adaptive guide pillar elastic clamp; the guide pillars force the self-adaptive guide pillar elastic clamps to elastically deform, so that the axial leads of the self-adaptive guide pillar elastic clamps are always overlapped with the axial leads of the guide pillars; and the electromagnetic driving mechanism drives the telescopic lens cone to perform axial focusing motion on the optical axis. The method has the advantage that the telescopic lens cone is prevented from being stuck in the focusing motion.

Description

technical field [0001] The invention belongs to the technical field of focusing motors, and in particular relates to a lens driving device and an imaging device. Background technique [0002] The imaging device includes a terminal such as a mobile phone. [0003] Taking mobile phones as an example, in order to pursue the same image quality as SLR cameras, mobile phone cameras will use large pixels and large apertures to improve optical performance on the micro-camera, thereby increasing the actual focal length of the micro-lens. In the limited space of the mobile phone, in order to meet the aforementioned requirements, when the miniature camera is in use, the driving mechanism of the lens must be able to stretch and protrude from the surface of the mobile phone. Therefore, the micro lens barrel retractable camera can not only solve the problem of placing and using large pixels and large aperture lenses on mobile phones, but also greatly improve the image quality. [0004] ...

AI Technical Summary

Problems solved by technology

[0005] Although the above existing solutions have improved the focusing accuracy, the above-mentioned solutions have the following defects: the cooperation of the matching holes on the lens barrel and the guide posts will cause the focusing movement to be stuck. The main reason is that the multiple guide posts are not parallel to each other and / or Or the guide post holes on the lens barrel are not parallel to each other, causing the focusing movement to stop, and the focusing accuracy needs to be further improved

Images