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Lens module group and its assembling method

A lens module and assembly method technology, applied in the field of photography, can solve the problems such as the inability to effectively improve the assembly yield and the inability to reduce the manufacturing cost of the lens module.

Inactive Publication Date: 2008-07-02
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this assembly method needs to wait until all the components are assembled, and use the optical test system to measure whether the optical properties of the product have deteriorated due to the eccentricity of the optical axis. After knowing it, it cannot be remedied and can only be discarded, resulting in the failure to effectively improve the assembly yield. , the manufacturing cost of the lens module cannot be reduced

Method used

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

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] see figure 2 and image 3 , a kind of lens module 20 that the first embodiment of the present invention provides, it comprises a lens barrel 21 and along the object side direction of lens barrel 21 is arranged in sequence in the lens barrel 21 first lens 22, aperture plate 23, the first The second lens 24 , the spacer ring 25 and the third lens 26 .

[0014] The first lens 22 has an optical portion 221 located at its center and a non-optical portion 222 located on the periphery of the optical portion 221, the non-optical portion 222 has a notch 223, and the notch 223 is formed by one side facing the first The front surface 2231 in the radial direction of the lens 22 is surrounded by two side surfaces 2232 , 2233 facing the circumferential direction of the first lens 22 . The second lens 24 and the third lens 26 have a structure similar to that of t...

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Abstract

The invention provides a lens module, comprising a drawtube and a plurality of lens arranged in the drawtube. The lens comprises an optical part at the center of the lens and a non-optical part around the optical part. The non-optical part of the lens has a nick, which is circled by a front facing the radial direction of the lens and two sides facing the circumference direction. At least one side of the nick of each lens corresponds to the nick of each lens on the imaging side thereof. The lens module has a high nondefective rate in the assembly. In addition, the invention provides an assembly method for the lens module.

Description

technical field [0001] The invention relates to the field of photography, in particular to a lens module and an assembly method of the lens module. Background technique [0002] Nowadays, the application of mobile digital cameras has become more and more popular, and people have higher and higher requirements for their cost performance. In order to reduce manufacturing costs, it is necessary to improve the manufacturing process of key components to improve the yield rate of the process. The mobile phone digital camera lens module is a key component, which includes plastic lens, glass lens, spacer (Spacer), aperture plate (Soma), infrared cut filter (IR-CutFilter), lens barrel (Barrel), etc. components. The biggest problem faced by general optical factories is the assembly yield, because as long as there is a slight deviation of one component during assembly, the optical performance of the entire lens module will be reduced. [0003] see figure 1 , is a common lens module ...

Claims

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Application Information

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IPC IPC(8): G02B7/02G02B1/10G03B17/02H04N5/225
Inventor 颜士杰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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