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Glass surface defect enhancement device and detection method thereof

A glass surface and defect technology, which is applied in the field of enhanced detection devices for glass surface defects, can solve the problems that the cover glass cannot be detected perpendicular to the scanning line, and the detection results are unreliable, so as to achieve enhanced strength, convenient measurement, and improved product quality.

Inactive Publication Date: 2015-09-09
武汉中导光电设备有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a glass surface defect enhancement detection device and its detection method to solve the technical problems that the existing cover glass online detection equipment cannot detect defects perpendicular to the scanning line, and the detection results are unreliable.

Method used

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  • Glass surface defect enhancement device and detection method thereof
  • Glass surface defect enhancement device and detection method thereof
  • Glass surface defect enhancement device and detection method thereof

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] figure 2 is the scanning schematic diagram of the present invention, image 3 It is a schematic diagram of the structure of the present invention.

[0020] As can be seen from the figure, the glass surface defect enhancement detection device includes a bright field illumination light path 1, a dark field illumination light path 2, a scanning imaging lens 3, a line array image sensor 4, and the like.

[0021] The brightfield ...

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Abstract

The invention discloses a glass surface defect enhancement detection device which comprises a bright field illumination light path, a dark field illumination light path, a scanning imaging lens and a linear array image sensor. Glass to be detected is conveyed to a movement platform through a feeding conveying belt, a bright field line source, the scanning imaging lens and the linear array image sensor are opened in sequence for bright field imaging; then the bright field line source is closed, a laser emits laser light, the laser light is converted into a line source through a Powell prism and a collimator, and dark field imaging is carried out by the scanning imaging lens and the linear array image sensor; statistic analysis is carried out on surface defect information of the glass by an intelligent system according to data obtained after bright field imaging and dark field imaging and the results are summarized and then output; through judgment on severity of defects, the effect of detecting out unqualified products is improved and the product quality is improved.

Description

technical field [0001] The invention relates to an optical detection method for reflective objects, in particular to a glass surface defect enhancement detection device and a detection method thereof. Background technique [0002] As a special glass, cover glass is widely used in electronic products such as mobile phones, tablet computers, and notebook computers in daily life, and its process quality is very high. In the production process of coverslips, there are many kinds of defects, the most common ones are: bubbles, streaks, stones, scratches, optical deformation, etc. These defects can affect the appearance quality of the glass and reduce the light transmission, mechanical strength and thermal stability of the glass. In order to improve the quality of glass, it is necessary to carry out on-line inspection or manual inspection of glass defects. Manual inspection relies on the naked eye to identify defects in glass, which is prone to missed inspections and false inspec...

Claims

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Application Information

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IPC IPC(8): G01N21/958
Inventor 伍祥辰张冲张国栋李波
Owner 武汉中导光电设备有限公司
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