Camera module and assembling process thereof

Abstract

The invention provides a camera module and an assembling process thereof. The camera module comprises a lens, a lens seat, an image sensor assembly and an anti-loosening screw, the bottom of the lensis provided with external threads; a limiting ring is arranged in the middle of the lens, and a positioning guide step is arranged between an external thread at the bottom of the lens and the limitingring; the lens seat comprises a lens assembling hole, the lens assembling hole is arranged in the lens seat in a penetrating manner, and the upper end part of the lens assembling hole sinks to form abearing table; an annular boss is formed at the bottom of the lens assembling hole and is provided with an internal thread; a positioning guide cylinder is arranged between the bearing table and theannular boss; the anti-loosening screws are used for fixing the lens and the lens seat and fixing the lens seat and the image sensor assembly, so that the stability of connection between the lens andthe lens seat and between the lens seat and the image sensor assembly is ensured, and the optical axis of the lens coincides with the normal of the image sensor; the camera module provided by the invention is assembled by taking the lens seat as a reference, so that the yield of the camera module is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of camera modules, and relates to an assembly structure of a lens, a mirror base and an image sensor assembly, which realizes the coincidence of the optical axis of the lens and the normal line of the image sensor, and in particular relates to a camera module and its assembly process. Background technique [0002] Camera modules on the market generally include lenses, mirror mounts and image sensor components. In the process of camera module assembly, how to combine the above-mentioned components well and ensure the requirements of optical performance and the positional relationship of mechanical assembly has always been the research direction of relevant technical personnel. [0003] The common assembly method is to first attach the image sensor to the circuit board through SMT (Surface Mount Technology), then connect the lens base and the image sensor component by gluing, the lens and the lens base are con...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a camera module to solve the problem that there may be a risk of loosening between the lens and the mirror holder and between the mirror holder and the image sensor assembly, so as to facilitate the assembly of the module

[0008] Another object of the present invention is to provide a camera module assembly process to solve the problem of high requirements for the positioning reference position of the optical axis of the lens relative to the mirror base when the mirror base is used as the installation reference

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