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Generation method of hybrid random structure metal mesh applied to transparent electromagnetic shielding
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A technology of metal mesh and electromagnetic shielding, applied in the direction of magnetic/electric field shielding, electrical components, etc., can solve the problems of randomness that needs to be improved, reducing the concentrated distribution of high-order diffraction energy, etc.
Pending Publication Date: 2022-02-08
NAT UNIV OF DEFENSE TECH
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There are also some researchers who have achieved good results in eliminating moiré fringes by generating random quadrilateral / random hexagonal graphic structures to destroy the periodic arrangement and reduce the concentrated distribution of high-order diffraction energy. However, this random quadrilateral / random hexagonal The shape arrangement structure obtains a random distribution pattern by only randomly and controllably offsetting vertices on the basis of regular graphics, so its randomness still needs to be improved.
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Embodiment 1
[0090] Example 1, when generating as figure 2 After the regular hexagonal grid structure shown, on the basis of the hexagonal structure, a ring structure is superimposed at each vertex position to form a ring-hexagonal hybrid grid structure. Then set the coefficients as follows:
[0091] Let the offset factor factor1=0, while r0 ji =max(r0), radius scaling factor factor2=1.
[0092] Thus we get as image 3 The full-circle regular mesh structure pattern is shown.
[0093] In addition, let factor1=0, while r0 ji =0.8×max(r0), radius scaling factor factor2=1.
[0094] This is obtained as Figure 4 The donut-hexagon mixed regular grid structure pattern shown.
Embodiment 2
[0096] generating figure 2 After the regular hexagonal grid structure shown, a ring structure is superimposed on each vertex of the hexagonal structure to form a ring-hexagonal hybrid grid structure. Then set the coefficients as follows:
[0097] Let the offset factor factor1=0, while r0 ji =max(r0), radius scaling factor factor2=0.8.
[0098] This is obtained as Figure 5 A grid pattern of random donuts mixed with regular hexagonal structures is shown.
Embodiment 3
[0100] generating figure 2 After the regular hexagonal grid structure shown, a ring structure is superimposed on each vertex of the hexagonal structure to form a ring-hexagonal hybrid grid structure. Then set the coefficients as follows:
[0101] Let the offset factor factor1=0.9, while r0 ji =min(l_1 ji , l_2 ji , l_3 ji ) / 2, radius scaling factor factor2=0.6.
[0102] This is obtained as Image 6 The random rings shown are mixed with a random hexagonal structured grid pattern.
[0103] The descriptions of the above three embodiments are based on several generation special cases of the random pattern generation of the ring-hexagon hybrid structure, which illustrates the effectiveness of the generation scheme in this invention. It also shows that the corresponding hybrid network pattern structure can be generated arbitrarily through the control of the coefficient parameters in the invention, which has great flexibility. The ring-hexagonal mixed random structure mentio...
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Abstract
The invention relates to a generation method of a hybridrandom structuremetal mesh applied to transparent electromagnetic shielding. The method comprises the following steps of: generating a plurality of regularly polygonal mesh structures which are periodically arranged in a preset rectangular plane; generating circular rings by taking the vertexes of the regular polygons as circle centers respectively; and randomly shifting the circle center positions of the circular rings and randomly changing the radiuses of the circular rings to finally generate the circular ring-polygon hybrid random metal mesh structure. In the whole structure patterngeneration process, random variables are superposed two times, so that the randomness of the finally obtained mesh structure pattern is greatly enhanced, and moire fringes can be better eliminated, and the imaging quality can be improved.
Description
technical field [0001] The present application relates to the technical field of transparent conductive and electromagnetic shielding grid structure design, in particular to a method for generating a metal grid with a mixed random structure applied to transparent electromagnetic shielding. Background technique [0002] In today's society, various electronic devices have increasing requirements for optoelectronic performance, especially in the field of transparent electromagnetic shielding, such as electromagnetic shielding in the case of optical transparency, such as cabins, optical sensors, confidential optical observation windows, various transparent touch screens and precision optical lenses. Performance has put forward certain requirements. In particular, certain precision optical lenses and sensors not only have high requirements for optical transparency and electromagnetic shielding performance, but also require good imaging quality, so the high-order diffraction energ...
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