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An infrared laser intrusion protective film

A technology of infrared laser and protective film, which is applied in the field of information security, can solve the problems of loss of work meaning, inability to effectively prevent information leakage, and affect eavesdropping on laser signals, so as to improve the protection effect, increase the laser damage threshold, and improve the resistance to bursting Effect

Active Publication Date: 2021-11-19
成都立鑫新技术科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technique is to cut a vibration jammer into the glass, which affects the eavesdropping on the laser signal
However, diffuse reflection laser eavesdropping has nothing to do with the vibration of the glass, so it loses its working significance and still cannot effectively prevent information leakage

Method used

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  • An infrared laser intrusion protective film
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  • An infrared laser intrusion protective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The invention discloses an infrared laser intrusion protective film, such as figure 1 As shown, it includes a base layer 1, an adhesive layer 2, an infrared laser grating treatment layer 3, a protective layer 4 and an installation adhesive layer 5, the base layer 1, the adhesive layer 2, an infrared laser grating treatment layer 3, and a protective layer 4 and the installation adhesive layer 5 are transparent, the adhesive layer 2, the infrared laser grating treatment layer 3, the protective layer 4 and the installation adhesive layer 5 are sequentially fixed on the base layer 1, and the infrared laser grating treatment layer 3 is used It is used to absorb infrared laser light, and make the unabsorbed infrared laser light pass through the gap of the grating to form diffraction.

[0038] In the present invention, the infrared laser grating treatment layer 3 includes antimony oxide, indium oxide and carbon nanotubes, and the mass ratio of antimony oxide, indium oxide and ...

Embodiment 2

[0057] This embodiment has verified the technical solution described in embodiment 1, specifically as follows:

[0058] Infrared lasers are used to eavesdrop on the indoor area without protective film and the indoor area with protective film. The intensity of the emitted infrared laser is 10mw, and a lens with a diameter of 100mm is used to receive at 100 meters. The intensity of the returned light when the protective film is not attached is 1nw can clearly restore the voice information of the object vibrating due to speaking, but after the protective film is attached, the light returned by it at a distance of 1 meter is 10pw, and because the signal is too weak, the voice information cannot be restored. This proves that the information leakage prevention effect of the present invention is very good, and can effectively prevent information leakage.

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Abstract

The invention discloses an infrared laser intrusion protective film, which comprises a base layer, an adhesive layer, an infrared laser grating treatment layer, a protective layer and an installation adhesive layer, wherein the adhesive layer, the infrared laser grating treatment layer, the protective layer and the installation adhesive The layers are sequentially fixed on the base layer, and the infrared laser grating treatment layer is used for absorbing infrared laser light, and allowing the unabsorbed infrared laser light to pass through the gap of the grating to form diffraction. The invention has simple structure, convenient use and can effectively prevent information leakage.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to an infrared laser intrusion protection film. Background technique [0002] With the development of laser technology, infrared laser eavesdropping has become one of the important sources of information leakage, and infrared laser eavesdropping information acquisition itself is a relatively new field, so there are relatively few protection methods for it. [0003] At present, in order to effectively prevent information leakage, people have proposed the following two anti-eavesdropping technologies for infrared laser eavesdropping: [0004] 1. Optical interference technology, such as a prior art laser monitoring and detection device whose publication number is CN204287480U, its technical solution is: including an illumination component for illuminating the target area and an imaging component for collecting image information of the target area, The imaging component is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04K3/00C09J7/29C09J131/04C08L67/02C08K3/22C08K3/04
CPCC08K3/22C08K3/2279C08K2201/011C09J131/04C09J2423/046C09J2431/00C08K3/041C09J7/29H04K3/68H04K3/82C08L67/02
Inventor 王汝君景小兵罗斌
Owner 成都立鑫新技术科技有限公司
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