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Method for preparing lens module

A lens module and lens barrel technology, which is applied to the camera body, installation, filters, etc., can solve the problems of lower product yield and difficulty in assembling parts, and achieves fewer processes, lower assembly difficulty, and higher yield. Effect

Inactive Publication Date: 2011-07-06
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the miniaturization of each part, it becomes difficult to assemble these parts, and this leads to a decrease in product yield

Method used

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  • Method for preparing lens module
  • Method for preparing lens module

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Embodiment Construction

[0012] The preparation method of the lens module of the present invention will be further described in detail in conjunction with the accompanying drawings.

[0013] See figure 1 , a lens module 100 prepared by the method for manufacturing a lens module according to an embodiment of the present invention includes an optical element 10 , a lens group 30 and a circuit board 50 . The optical element 10 includes an infrared cut filter part 11 and a barrel part 20 . The infrared cut filter unit 11 is integrated with the lens barrel unit 20 . The lens group 30 is disposed in the barrel portion 20 and located on one side of the infrared cut filter portion 11 . One end of the lens barrel part 20 away from the infrared cut filter part 11 is fixed to the circuit board 50 .

[0014] The infrared cut-off filter part 11 is mainly used to filter the light in the infrared band entering the lens module 100 and let the light in other bands pass through, so as to eliminate the interference o...

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Abstract

The invention relates to a method for preparing a lens module, which comprises the following steps of: providing a transparent substrate; forming a first photo-resist layer which comprises a main body and a hogged part on the transparent substrate; forming hardened layers on the transparent substrate and the first photo-resist layer; forming second photo-resist layers on the hardened layers; grinding the hardened layers to ensure the hogged part is exposed outside; removing the first photo-resist layer and the second photo-resist layers to ensure that the hardened layers form a lens barrel part; forming infrared cut-off filter layers on the transparent substrate and the lens barrel part; forming third photo-resist layers on the infrared cut-off filter layers; removing the parts of the infrared cut-off filter layers, which are not covered by the third photo-resist layers; removing the third photo-resist layers to form an optical element which comprises an infrared cut-off optical filter part and the lens barrel part; arranging a lens set in the lens barrel part and at one side of the infrared cut-off optical filter part; and packaging the lens barrel part with the lens set on a circuit board. The lens module product prepared by the method has high yield.

Description

technical field [0001] The invention relates to a preparation method of a lens module. Background technique [0002] With the development of science and technology, portable devices, such as mobile phones, digital cameras and other electronic products with camera and video functions, are widely used, and tend to be thinner, lighter and smaller. The portability and miniaturization of portable devices put forward the requirement of miniaturization for the lens module combined with it. According to the current state of the art, each part of the lens module is prepared separately in the production chain, for example, the lens barrel, the lens group, and the infrared cut filter are prepared separately and then assembled. However, as the components are miniaturized, it becomes difficult to assemble the components and lowers the product yield. Contents of the invention [0003] In view of this, it is necessary to provide a method for preparing a lens module with low assembly di...

Claims

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Application Information

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IPC IPC(8): G02B7/02G02B5/20G03B17/12G02B7/00
Inventor 裴绍凯
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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