Drawtube, optical module group with the same and its assembling method

Abstract

The invention relates to a drawtube, which comprises a drawtube body and a closing device. The drawtube body comprises a first underside, a second underside and a side wall for connecting the first underside and the second underside. The side wall is provided with an inner surface and an outer surface, and an opening is up on the side wall to transfix the inner surface and the outer surface, and can be used to enclose the optical components into the drawtube body. Two installation sides are provided on the side wall to define the opening. The axis of the drawtube revolving from one end of the inner surface intersected with one installation side to the other end of the inner surface intersected with the other installation side is opened with a first groove. The curvature of the first groove is equal to that of the inner surface of the side wall on the drawtube body. The closing device matches with the opening on the drawtube body. The invention also provides an optical module with the drawtube and a method to assemble the optical module.

Description

technical field [0001] The invention relates to the field of optical systems, in particular to a lens barrel, an optical module with the lens barrel and an assembly method of the optical module. Background technique [0002] With the vigorous development of the electronic communication industry, consumer electronic products such as mobile phones, notebook computers, digital cameras, and personal digital assistants have gradually become essential items in people's daily life. Due to the increasingly fierce competition in the electronic market, in order to win a place in the market, major manufacturers continue to introduce new products to their products. At present, most electronic products are developing in the direction of miniaturization, integration, and multi-function. Electronic products integrated with camera functions are even more popular. [0003] The existing optical lens module structure generally includes optical components such as a plurality of lenses, diaphra...

AI Technical Summary

Problems solved by technology

In the existing optical lens module structure, since the lens barrel is usually a cylindrical structure, each optical element is usually installed in the lens barrel in sequence along the axis of the lens barrel, and it is impossible to assemble each optical element while maintaining the position of each optical element. The optical eccentricity can only be measured after the assembly is completed. However, once the optical eccentricity problem is detected in the assembled lens module, remedial measures such as adjustment and replacement of optical components cannot be taken because the assembly has been completed. In this way Due to the failure of the entire optical module, all the optical components in it will be discarded, resulting in a great waste of the assembly process

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