Orthogonal ring array electromagnetic shielding light window with two sets of circumscribed rings and sub-rings

Abstract

The electromagnetic shielding light window of the orthogonal ring array with two sets of circumscribed rings and sub-rings belongs to the field of electromagnetic shielding technology, and the basic rings of different diameters, the connecting rings and the filling rings are closely arranged to form a metal grid and loaded on the light The surface of the transparent substrate of the window; the basic circular rings are arranged in two-dimensional orthogonal manner and separated from each other at equal intervals in the direction of the arrangement; The rings are connected by connecting units, and the gap between the basic ring and the connecting unit has a filling ring; the basic ring, the connecting ring and the filling ring are connected through circumcision to form the basic structure of the metal grid; Cutting connected sub-rings; at the tangent connection of the rings, overlapping lines or setting metals to ensure reliable electrical connection between the tangent points of the metal rings to ensure that all the rings conduct electricity with each other. The metal grid of the invention can significantly reduce the inhomogeneity of stray light distribution caused by grid high order diffraction.

Description

technical field [0001] The invention belongs to the field of electromagnetic shielding of optical transparent parts, in particular to an electromagnetic shielding light window of orthogonal circular ring arrays with two groups of circumscribed circular rings and sub-circular rings. Background technique [0002] With the widening and increasing intensity of the electromagnetic wave application spectrum, the requirements for electromagnetic shielding light windows used in aerospace equipment, advanced optical instruments, communication equipment, medical diagnostic instruments and security facilities are getting higher and higher, mainly requiring light windows While having a super strong broadband electromagnetic shielding ability, it also has a very high light transmittance, and the less impact on optical imaging, observation, and detection, the better. For example, the optical window of an aircraft in the field of aerospace equipment must achieve high-quality isolation of e...

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to overcome the deficiencies of the above-mentioned existing optical window electromagnetic shielding technical solutions, especially for the existence of advanced To solve the problem of relatively concentrated stray light distribution caused by sub-diffraction, an electromagnetic shielding light window with an orthogonal circular ring array with two sets of circumscribed rings and sub-rings has been developed to achieve depth homogenization and extremely low imaging of high-level diffraction. purpose of quality impact

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