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Laser marking method for random three-dimensional code

A laser marking and three-dimensional code technology, which is applied in the field of laser marking of random three-dimensional codes, can solve the problems of low efficiency of random three-dimensional codes, achieve high marking efficiency, improve processing efficiency, and ensure randomness

Active Publication Date: 2019-10-18
东莞市恒德光电设备制造有限公司 +1
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  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide a laser marking method for a random three-dimensional code, aiming at solving the problem of low efficiency of the existing mechanical processing random three-dimensional code

Method used

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  • Laser marking method for random three-dimensional code
  • Laser marking method for random three-dimensional code
  • Laser marking method for random three-dimensional code

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Experimental program
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Effect test

Embodiment

[0059] (1) Change the black area of ​​the two-dimensional code image into color to generate a three-dimensional code color image;

[0060] Traverse the entire image on the black and white two-dimensional code image to obtain the size of the unit block that can form the black area of ​​the image, define the size of the color block according to the size of the unit block, the size of the color block is an integer multiple of the size of the unit block, and convert the entire black and white two-dimensional code The image is divided according to the size of the color block. If the image size of the two-dimensional code is not an integer multiple of the color block, the remaining area is regarded as a color block, and the entire two-dimensional code image is traversed, and the black area corresponding to the same color block is randomly changed. One of the three colors of red, green, and blue (R, G, B), the white area remains unchanged, and finally a random color three-dimensional ...

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Abstract

The invention discloses a laser marking method for a random three-dimensional code, and belongs to the field of laser processing. The laser marking method comprises the following steps: changing a black region of a two-dimensional code image into a color to generate a three-dimensional code color image; generating marking paths according to the three-dimensional code color image, and classifying the marking paths according to colors to obtain classified storage information; and marking a random three-dimensional code on the multi-layer anti-counterfeiting module by adopting a laser according to the classified storage information, wherein the multi-layer anti-counterfeiting module is formed by superposing materials with different colors, and the colors of the materials include the color types in the three-dimensional code color image. According to the invention, the marking time is fixed; and the output power of the laser is modulated according to the received classified storage information, or when the output power of the laser is fixed, the marking time is adjusted according to the received classified storage information, and three-dimensional codes with different depths and a concave-convex feeling can be quickly marked on the multi-layer anti-counterfeiting module after one processing path is completed, so that the processing efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of laser processing, and more specifically relates to a laser marking method for a random three-dimensional code. Background technique [0002] QR code is a portable data file with high density and high information content. It can encode digital information such as photos, fingerprints, palm prints, signatures, voices, and texts. It is easy to make and low in cost. Dot matrix, laser, inkjet, thermal, card printing and other printing technologies can print two-dimensional barcodes on paper, cards, PVC, and even metal surfaces. It can be seen that two-dimensional codes play an important role in daily life as information carriers. role is becoming increasingly important. [0003] At present, the two-dimensional code processed on the ordinary plane is easy to be copied, and the anti-counterfeiting ability is poor. Therefore, the random three-dimensional code adds random color information on the basis of the two-dimension...

Claims

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Application Information

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IPC IPC(8): G06K19/06B23K26/362
CPCB23K26/362G06K19/06037
Inventor 刘晓东刘容麟
Owner 东莞市恒德光电设备制造有限公司
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