Method for creating vector holographic geometrical curves relevant to laser etching

Abstract

The invention relates to the technical field of electric digital data processing, in particular to a method for creating vector holographic geometrical curves relevant to laser etching. The method is characterized in that geometrical curves are repeatedly iteratively computed on the basis of Bessel curve functions according to a design principle and are converted into files in special formats, and the files are implemented via a laser etching technology by the aid of a holographic plate-making system. Compared with the prior art, the method has the advantages that the method can be widely applied to the holographic anti-counterfeiting field; the required vector curves are designed via software and are parsed to form the files in the specific formats, and the files are guided into the holographic plate-making system and are implemented via the laser etching technology; the vector holographic curves created by the method are extremely high in resolution, the edges of lines are smooth and are free of 'sawteeth', pixels can be correspondingly deflected along with change of the curves, and colors of the lines can correspondingly change along with change of the curves; the plate-making cycle can be greatly shortened, a macroscopic effect is obvious, and an anti-counterfeiting level is high.

Description

[technical field] [0001] The invention relates to the technical field of electrical digital data processing, in particular to a method for making vector holographic geometric curves related to laser etching. [Background technique] [0002] As one of the important technologies in the field of anti-counterfeiting, laser holography has been widely used in various cards and anti-counterfeiting packaging of commodities. Its biggest feature is its obvious appearance and easy identification. However, as time goes by, the previous holographic anti-counterfeiting technology will inevitably be mastered by more and more people, resulting in weakened anti-counterfeiting functions. At present, the main anti-counterfeiting technology in our country is still dominated by dot-matrix holographic plate-making technology, and some laser direct writing technologies based on spatial light modulators have also been developed. These technologies have certain advantages and disadvantages when mak...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve defects such as jaggies, refresh frequency, and insufficient exposure speed in the production of vector holographic curves in the prior art, and provide a related laser with fast plate-making speed, large plate-making area, and greatly improved resolution. The method for making the etched vector holographic geometric curve, including computer and drawing service tools, is characterized in that it comprises the following steps: a. firstly design the required geometric curve of any shape by drawing software, and add several geometric curves on the geometric curve The control points are stored in the format of vector graphics after completion; b. analyze the above-mentioned vector graphics into a file format that is convenient for the holographic plate-making system to read; c. set the vector line color or holographic geometric line color and pixel according to the production needs during analysis Rotation angle and pixel pitch parameters; d. Finally, through the holographic plate-making system, it is realized by laser etching process

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