Sheet-shaped shading material light leakage detection device based on avalanche diodes

An avalanche diode and light leakage detection technology, applied in the direction of optical testing flaws/defects, can solve the problems of affecting the shading effect of shading materials, reducing the yield of shading materials, etc., to achieve easy placement and flatness maintenance, high detection rate, Good detection effect

Inactive Publication Date: 2014-09-17
SUZHOU UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

However, since the shading layer of the shading material is added later, some spraying or printing defects are unavoidable, that is, some light leakage parts will be formed on the surface of the shading material, and these light leakage parts will affect the shading effect of the shading material and reduce the yield of the shading material.

Method used

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  • Sheet-shaped shading material light leakage detection device based on avalanche diodes
  • Sheet-shaped shading material light leakage detection device based on avalanche diodes
  • Sheet-shaped shading material light leakage detection device based on avalanche diodes

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Embodiment Construction

[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

[0024] Such as Figure 1-4 As shown, an avalanche diode-based sheet light-shielding material light leakage detection device includes a dark box 2 and a detection platform 4 arranged in the dark box 2 . The dark box 2 is also provided with a detector 6 that can move along the detection platform 4 . The detector 6 includes a light source 62 arranged below the detection platform 4 and an avalanche diode 64 arranged above the detection platform 4 corresponding to the light source 62 .

[0025] The dark box 2 is in the shape of a cuboid, and its two ends are respectively provided with an inlet 22 and an outlet 24 as the passage port of the light-s...

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Abstract

The invention relates to a sheet-shaped shading material light leakage detection device based on avalanche diodes. The light leakage detection device comprising a dark box and a detection platform arranged in the dark box is characterized in that: the dark box is also provided with a detection instrument which can move along the detection platform; the detection instrument comprises a light source arranged under the detection platform and a plurality of avalanche diodes arranged above the detection platform and corresponding to the light source. According to the light leakage detection device, through an electric or manual mode, the detection instrument is allowed to move along the detection platform in the dark box so as to scan a shading material, and detection results can be conveniently and rapidly obtained. The detection instrument based on the avalanche diodes has relatively high detection rate.

Description

technical field [0001] The invention relates to a light leakage detection device, in particular to a light leakage detection device for a light-shielding material. Background technique [0002] Light-shielding materials are usually realized by adding a light-shielding layer on the surface of the material, and are widely used in various industries. For example, aluminum foil printed with shading ink is a kind of shading material. However, since the light-shielding layer of the light-shielding material is added later, some spraying or printing defects are unavoidable, that is, some light leakage parts will be formed on the surface of the light-shielding material, and these light leakage parts will affect the light-shielding effect of the light-shielding material and reduce the yield of light-shielding material production. Therefore, a corresponding light leakage detection device is urgently needed. Contents of the invention [0003] The invention overcomes the deficiencies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/89
Inventor 尚文李相鹏
Owner SUZHOU UNIV OF SCI & TECH
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