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Method and apparatus for inspecting optical filter adhesion in lens mould set

A technology of lens module and detection method, which is applied in measurement devices, optics, power metering, etc., can solve the problem of insufficient glue dispensing, uneven dispensing of filters and spacers, and insufficient adhesion between filters and spacers And other issues

Inactive Publication Date: 2007-11-21
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

The main reason for the filter falling off is that during the assembly process, the dispensing of glue between the filter and the spacer is uneven or the amount of glue is insufficient, so that the adhesion between the filter and the spacer is insufficient

Method used

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  • Method and apparatus for inspecting optical filter adhesion in lens mould set
  • Method and apparatus for inspecting optical filter adhesion in lens mould set
  • Method and apparatus for inspecting optical filter adhesion in lens mould set

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Embodiment Construction

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

[0014] Please refer to Fig. 1 to Fig. 3, the method for detecting the adhesion of the optical filter in the lens module provided by the embodiment of the present invention includes the following steps:

[0015] (1) As shown in FIG. 1 , a lens module 10 is provided, which includes a lens assembly 20 , a filter 30 and a lens barrel 40 . The lens assembly 20 and the filter 30 are housed in the lens barrel 40 sequentially from the object side to the image side.

[0016] The lens assembly 20 may include various optical elements such as lenses 22 , 24 and spacers 26 . The lens 22 and 24 can be made of glass or plastic. The peripheral surfaces of the lenses 22 and 24 are fixed in the lens barrel 40 by glue. The spacer 26 is ring-shaped and is used to form a space between the lens 24 and the filter 30 to avoid damage to the elements due to conta...

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Abstract

A method for detecting adhesive force of filter in lens module includes providing a lens module with filter and lens component in lens cone, attaching said filter on one side surface of adjacent lens component, providing a tensometer with a screen and pulling rod, connecting one end of pulling rod to said screen and jointing another end with said filter through binding, exerting an acting force to pull said filter open from surface of lens component and recording indication on tensometer when said filter is pulled to be open.

Description

technical field [0001] The invention relates to a method for detecting the adhesion of an optical filter, in particular to a device and a method for detecting the adhesion of an optical filter in imaging devices such as digital cameras and video cameras. Background technique [0002] With the development of optical imaging technology, lens modules have been widely used in various imaging devices such as digital cameras and video cameras, and electronic devices such as mobile phones and notebook computers integrated with lens modules have been favored by many consumers. favor. [0003] Existing lens modules generally include a plurality of optical components such as lenses, aperture plates, and filters housed in a lens barrel, and spacers for controlling the distance between the optical components. During the assembly process of this kind of lens module, the optical elements such as the plurality of lenses, aperture plates, and optical filters are sequentially accommodated i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B43/00G01L3/18
Inventor BOYUAN LIN XIAO
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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