Electromagnetic shielding optical window with double-layer pane metal gridding structure
A metal grid, electromagnetic shielding technology, applied in the fields of magnetic field/electric field shielding, electrical components, etc., can solve the problem of high light transmittance and strong electromagnetic shielding efficiency of single-layer square metal grid, and improve the shielding efficiency. , the production process is simple and the cost is low
Active Publication Date: 2009-10-21
HARBIN INST OF TECH
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0010] The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing optical window electromagnetic shielding technical solutions, especially for the problem that the high light transmittance and strong electromagnetic shielding efficiency of the single-layer grid metal grid cannot be taken into account. The electromagnetic shielding optical window with square metal grid structure uses the different influence rules of the double-layer metal grid spacing on its light transmission and shielding properties to select the grid period and double-layer spacing to achieve a basic light transmittance. Without changing the situation, the shielding efficiency is greatly improved
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] Embodiments and accompanying drawings of the electromagnetic shielding optical window with a double-layer lattice metal grid structure are described in detail as follows:
[0032] attached figure 1It is a schematic cross-sectional view of a typical preferred structure of the electromagnetic shielding optical window with a double-layer lattice metal grid structure of the present invention. Among the figure 3 and 7 are single-layer grid metal grid structure layers respectively, their structural parameters are the same, and are arranged in parallel; among the figure 5 is the optical window transparent material substrate layer, the material can be any transparent material, as long as it can be used as A transparent optical window material that meets the requirements of the application, and at the same time, the grid metal grid 3 and 7 can be processed on it or attached to its surface according to a certain process; 4 in the figure is the connection between the optical wind...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An electromagnetic shielding optical window with a double-layer grid metal grid structure belongs to the technical field of electromagnetic shielding of optical transparent parts. Or the two sides of the transparent substrate, the side length of the double-layer grid metal grid is twice the side length of the traditional single-layer grid metal grid, and the distance between the two layers of grid metal grid is The side length of the grid is 2 to 4 times. Compared with the traditional single-layer grid metal grid, the optical window with the double-layer grid metal grid structure greatly improves the microwave and millimeter wave transmission without reducing the light transmittance. It solves the problem that high light transmittance and strong electromagnetic shielding efficiency cannot be taken into account in the existing optical window electromagnetic shielding technology. It is suitable for electromagnetic shielding of military and civil optical transparent parts such as aerospace equipment, confidential facilities and medical diagnostic instruments. .
Description
technical field [0001] The invention belongs to the field of electromagnetic shielding of optically transparent parts such as medical diagnostic instruments, security facilities and aerospace equipment, and particularly relates to an electromagnetic shielding optical window with a double-layer square metal grid structure. Background technique [0002] With the wide application of various electronic devices, the application band of electromagnetic waves continues to widen and the intensity continues to increase, and the space electromagnetic environment is becoming more and more complex. There are more and more clear electromagnetic shielding requirements for optical windows used in medical diagnostic instruments and other fields, especially the requirements These optical windows combine high transparency with superior broadband electromagnetic shielding performance. For example, the observation window of the shielding room of the medical nuclear magnetic resonance instrument...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00
Inventor 谭久彬陆振刚
Owner HARBIN INST OF TECH