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Lens module

A lens module and lens technology, applied in the optical field, can solve the problems of high cost of high-reliability glue, high module price, and difference in thermal expansion and contraction performance, so as to reduce high-cost selection conditions and avoid easy The effect of cracking and internal stress reduction

Inactive Publication Date: 2019-10-11
ZHEJIANG SUNNY SMARTLEAD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing assembly method of the mirror base and the lens, glue is used for bonding, so that the curing time of the glue in the manufacturing process is longer, which prolongs the production cycle
Moreover, as time increases, the adhesive force of the glue will decrease, which will affect the reliability of the product after a long time
In addition, as the requirements for camera reliability increase, the high cost of high-reliability glue leads to high module prices
Moreover, the materials of the glue, the lens and the lens holder are different, and there are differences in thermal expansion and contraction performance, which will affect the performance of the module under alternating temperatures.

Method used

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Embodiment Construction

[0028] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

[0029] When describing the embodiments of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", " The orientation or positional relationship expressed by "horizontal", "top", "bottom", "inner" and "outer" is based on the orientation or positional relationship shown in the relevant drawings, which are only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particu...

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Abstract

The invention relates to a lens module. The lens module comprises a lens (11) and a lens base (12) fixedly connected with the lens (11); a lens barrel (111) of the lens (11) is provided with a connecting portion (1111) welded to the lens base (12); and an annular groove (1111a) is arranged on the side of the connecting portion (1111) along the axial direction of the lens (11). The connection between the lens and the lens base is achieved by means of welding, therefore, the problem of influence on the lens precision caused by glue shrink and the like generated by the curing process of the glueis avoided; especially when connected by laser welding, the welding spot area is small; and the generated internal stress is correspondingly reduced through the evenly distributed welding points, which benefits ensuring the structural precision and stability of the lens module disclosed by the invention.

Description

technical field [0001] The invention relates to the field of optics, in particular to a lens module. Background technique [0002] With the development of artificial intelligence and the emphasis on car driving safety, the assembly requirements of vehicle-mounted modules (cameras) continue to increase, and it has become a trend to improve the reliability of modules (cameras) and reduce costs; at present, ordinary vehicle-mounted modules (Camera), in the assembly process of the lens and the mirror base, it is mainly fixed by threads and glue; or the lens and the mirror base are only fixed by glue. However, in the existing assembly method of the mirror base and the lens, glue is used for bonding, so that the curing time of the glue is longer in the manufacturing process, which prolongs the production cycle. Moreover, as time increases, the adhesive force of the glue will decrease, which will affect the reliability of the product after a long time. In addition, as the require...

Claims

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Application Information

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IPC IPC(8): G02B7/02G03B30/00
CPCG02B7/02
Inventor 张扣文许一可
Owner ZHEJIANG SUNNY SMARTLEAD TECH CO LTD
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