Lens module fixing arrangement and method

Abstract

A lens module fixing structure and method. The fixing structure of the lens module of the present invention includes a lens barrel and a lens holder, and several holes are opened on the peripheral wall of the lens holder, and the holes are used for pre-positioning the lens holder and the lens barrel. An annular glue dispensing groove is recessed on the outer wall of the lens barrel, and the annular glue dispensing groove is located at the junction of the lens holder and the lens barrel. This lens module fixing method includes the following steps: firstly assemble the lens module into the lens holder, then pre-fix the lens module on the lens holder with UV glue through several holes on the peripheral wall of the lens holder, and finally fix the lens module on the lens holder Add cured glue into the annular dispensing groove at the joint between the upper end and the lens barrel and heat and fix it. The product obtained by the structure and method not only ensures the accurate fixation of the focusing position, but also improves the bonding strength, thereby improving the product quality.

Description

【Technical field】 [0001] The invention relates to a lens module fixing structure and method applied to various cameras or optical instruments. 【Background technique】 [0002] At present, the fixed structure of the lens module used in cameras or optical instruments in the industry is mainly fixed with glue 10, please refer to figure 1 and figure 2 , the structure includes a lens module 11 and a lens holder 12, the lens module 11 is composed of a lens barrel 111 and a plurality of lenses 112, the outer wall of the lens barrel 111 and the inner wall of the lens holder 12 are threaded, and the lens module 11 is connected by threads, Then glue is dispensed and fixed at the joint between the lens barrel 111 of the lens module 11 and the upper end of the lens holder 12 . In this method, the lens module is screwed into the lens holder by threads first, and the optical effect is adjusted by the threads. When the optical effect is the best, then glue is dispensed at the joint betwe...

AI Technical Summary

Problems solved by technology

However, the application of this method will cause the following problems: if UV glue (ultraviolet glue, ie ultraviolet glue) is used to dispense glue at the joint, the ultraviolet light cannot be irradiated into the joint between the lens barrel and the lens mount, and the UV glue (ultraviolet glue, ie ultraviolet glue) cannot be applied to the joint. That is, ultraviolet glue) is completely cured, so that the expected fixing effect cannot be achieved; if heat-curing glue is used, the focus position will also be shifted when heated, and the position correction of the lens module after curing is not easy to achieve, resulting in mass production of products decrease, manufacturing cost increases

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