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Apparatus and method for photographing glass defects in multiple layers

A technology on glass and glass, used in measuring devices, material analysis by optical means, instruments, etc.

Inactive Publication Date: 2014-10-01
ATI CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no single device with a camera that can capture glass scratches from any angle

Method used

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  • Apparatus and method for photographing glass defects in multiple layers
  • Apparatus and method for photographing glass defects in multiple layers
  • Apparatus and method for photographing glass defects in multiple layers

Examples

Experimental program
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Effect test

Embodiment Construction

[0048] It must be stated that the types of glass screen defects that can be photographed by the imaging device described in the present invention include but are not limited to scratches, edge collapse / surface collapse, black and white spots, light leakage, cracks, pinholes, bumps, bubbles and Dirt, these defects may be distributed on the surface, back and middle layers of the glass screen. The mechanical structure of the device and photography involves a transmission device, one (or more) line frame (or surface frame) cameras, one (or more) strip light sources (or surface light sources), and one or more common Lens (low precision) or microlens (high precision); among them, the transmission device can be a roller conveyor, air-floating conveyor or any other type of conveyor, if you choose a wire frame camera then the conveyor must leave enough space For line scanning, the corresponding light source can be linear or square, the lens is an ordinary lens or a micro lens, and the ...

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PUM

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Abstract

The invention relates to an apparatus and method for photographing glasses. The apparatus is used for taking high quality photo images with scratch, crash, black / white defect, lack, crack, pin-hole, concave edge and raised edge, bubble and smudge defects on the surface-layer, backside-layer or / and mid-layer of the glasses. The invention also relates to a flexible and expendable photographing hardware architecture that will match various customers inspecting defects requirements and speed requirements.

Description

technical field [0001] The invention relates to various flaws (including scratches, edge / surface collapse, black and white spots, light leakage, cracks, pinholes, bumps, bubbles and Dirty) high-quality images. Specifically, the present invention is a stable, reliable, fast and high-definition imaging device and method designed for this purpose. [0002] The present invention relates to automatic inspection of glass based on machine vision system, transmission control, optical imaging design and hardware structure of the device. Various imperfections in each layer (front, back and center layers) of one or more types of glass. Background technique [0003] Automatic glass inspection has a wide range of applications, especially in the field of glass inspection for manufacturers of mobile phone glass screens, IPAD glass screens and flat panel display glass screens. Since it is difficult to obtain various defects (including scratches, edge / surface chipping, black and white spo...

Claims

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Application Information

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IPC IPC(8): G01N21/958
CPCG01N21/896
Inventor 姜连生
Owner ATI CHINA
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