Lens cone and camera lens module thereof

Abstract

A lens cone comprises a hollow columnar cone body which comprises an outer side wall and an inner side wall. External threads around the cone body are formed on the outer side wall of the cone body. Three tangential sections for separating the external threads are arranged on the outer side wall of the cone body at equal intervals. The lens cone and the camera lens module thereof of the invention utilize three tangential sections to separate the tangential sections on the outer side wall of the cone body so as to decrease the area of the threads, decrease the friction generated in the process of assembling the lens cone, as well as reduce the impurities like deckle edge formed on the threads and decrease the possibility of generating dropped crumbs, therefore promoting the assembling precision and the reliability in the assembling process of the lens cone. The invention also provides a camera lens module using the lens cone.

Description

technical field [0001] The invention relates to a lens barrel, and also relates to a lens module applying the lens barrel. Background technique [0002] The existing lens module includes a lens seat and a lens barrel screwed into the lens seat. The mirror base includes an accommodating cavity, and an inner thread is arranged on the inner wall of the accommodating cavity. An outer thread is provided on the outer wall of the lens barrel, and the outer thread of the lens barrel and the inner thread of the lens seat are screwed with each other, so that the lens barrel is fixed in the accommodating cavity of the lens seat. However, the lens barrel and lens holder in the current lens module are all injection-molded. Since the plastic material is easily deformed, and it is difficult to control the precise molding of the threads on the lens barrel and the lens holder during the molding process, this will make the lens The assembly of the barrel and the lens seat is not smooth, and...

AI Technical Summary

Problems solved by technology

However, the lens barrel and lens base in the current lens module are all injection molded. Since the plastic material is easily deformed, and it is difficult to control the precise molding of the threads on the lens barrel and lens base during the molding process, the lens will The assembly and cooperation between the barrel and the lens base is not smooth, and there are defects such as errors and burrs between the threads of the lens barrel and the lens base, so that the friction between the lens barrel and the lens base is relatively large, and it is easy to produce chips during the matching process. These debris falling on the sensor surface of the lens module will seriously affect the imaging quality of the lens module

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