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Lens module and its assembling method

A lens module and lens technology, applied in installation, optics, instruments, etc., can solve the problems of reduced assembly efficiency and optical performance of lens modules, and achieve the effects of improving assembly efficiency, saving assembly time, and ensuring optical performance

Inactive Publication Date: 2008-01-16
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the aperture plate or spacer has burrs, the distance between the lenses will change, thereby reducing the optical performance of the entire lens module
[0004] In the above assembly method, it is necessary to wait until all the optical component

Method used

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  • Lens module and its assembling method
  • Lens module and its assembling method
  • Lens module and its assembling method

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] Please refer to FIG. 1 and FIG. 2 together, which are a lens module 100 according to an embodiment of the present invention. The lens module 100 includes a lens barrel 12 and several lens elements 18 . The lens element 18 of this embodiment includes a lens group 14 and an infrared cut filter 16 .

[0015] The lens barrel 12 is used to carry the lens elements in the lens module 100 . The inner side of the lens barrel 12 is provided with a plurality of lens fixing structures corresponding to the lens elements. Preferably, an opening 124 is formed on the side of the lens barrel, and the opening 124 is used as an entrance for assembling lens elements into the lens barrel 12 . The outside of the lens barrel 12 is provided with an external thread 126 . The lens barrel 12 is fixed in the lens housing (not shown) and can move in the direction of the optical...

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PUM

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Abstract

The lens module group comprises at least one lens cylinder and at least one lens equipped in the lens cylinder; at least one lens fixing structure is equipped on the internal side of the lens cylinder; the lens comprises a main body part and a connecting part connected with the main body part; the connecting part matches with the lens provided on one the internal side of the lens cylinder, and hence the lens is fixed in the lens cylinder; the lens matches with the lens fixing structure so that the lens is fixed in the lens cylinder. As the distances between the lens fixing structures are invariable, the distances between the lenses in the lens cylinder are invariable, which effectively guarantees the optical performance of the lens module group. The invention also relates to the assembly method of the lens module group.

Description

technical field [0001] The invention relates to a lens module, in particular to a lens module for a camera module of a mobile communication device and a method for assembling the lens module. Background technique [0002] In recent years, with the development of optical products, the scope of application of optical lenses has continued to expand, such as digital cameras and mobile phones with camera functions. The optical lens and the lens module including the optical lens require high precision. Therefore, the assembly process of lens modules requires high precision and stability to ensure production efficiency and yield. [0003] Generally, the assembly method of the lens module is to put each optical element into the lens barrel sequentially, for example, the first lens, the aperture plate, the second lens, the spacer, and the infrared cutoff plate are placed into the lens barrel in sequence. The distance between the lens and the lens is controlled by the thickness of t...

Claims

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Application Information

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IPC IPC(8): G02B7/02
Inventor 颜士杰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD