Unlock instant, AI-driven research and patent intelligence for your innovation.

An infrared stealth material

A stealth material and infrared technology, applied in the field of infrared stealth, to achieve good radar stealth compatibility and achieve the effect of cooling and heat dissipation

Active Publication Date: 2019-06-11
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional infrared stealth materials, because they contain a certain proportion of metal doping, will inevitably have a certain negative impact on the transmittance of the radome

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An infrared stealth material
  • An infrared stealth material
  • An infrared stealth material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Fabrication of Alternately Arranged YbF on Substrate by Ion Beam Sputtering 3 film and ZnSe film, the bottom and top layers are both YbF 3 The number of layers of the multilayer film is 33, and the thickness of the film from the bottom layer is 0.97453 μm, 0.64834 μm, 0.39490 μm, 0.44593 μm, 0.43009 μm, 0.54081 μm, 1.10301 μm, 0.12082 μm, 0.66528 μm, 0.61058 μm ,0.90684μm,0.10666μm,0.83247μm,0.57832μm,0.7648μm,0.17861μm,0.81283μm,0.44699μm,1.91144μm,1.02709μm,0.68401μm,0.26756μm,0.50729μm,0.40487μm,1.026μm,0.05128μm,0.56253 μm, 1.24633μm, 0.48934μm, 0.44942μm, 0.39864μm, 0.29366μm, 1.63612μm.

[0031] The prepared infrared stealth material flat sample such as figure 1 shown.

[0032] The infrared stealth performance of the infrared stealth material was tested and verified by Fourier transform infrared spectrometer, and the comparison chart of the emissivity simulation and test curve in the infrared band was obtained, as shown in figure 2 shown. From figure 2It c...

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

No PUM Login to View More

Abstract

The invention provides an infrared stealth material, which is formed by stacking multi-layer films; the multi-layer films include alternately arranged YbF with a thickness of a quarter of the central wavelength. 3 film and ZnSe film. Compared with the prior art, the present invention uses ZnSe and YbF 3 As the base material, due to the high and low differences in the refractive index of the two base materials, the thickness of each layer is one-fourth of the central wavelength in the design. When returning to the front surface, they have the same phase, thereby producing constructive interference, which can achieve high reflection of infrared energy at the corresponding central wavelength; the infrared stealth material will not have a negative impact on the transmission of radar waves, and has good radar stealth compatibility; At the same time, the infrared stealth material provided by the present invention has low emissivity in the medium and long-wave atmospheric window to realize the infrared stealth function, and high emissivity outside the atmospheric window to realize the target cooling and heat dissipation.

Description

technical field [0001] The invention belongs to the technical field of infrared stealth, and in particular relates to an infrared stealth material. Background technique [0002] The radome is the external window of the aircraft and other equipment, and it is also the guarantee for the radar to realize the functions of positioning, navigation and precise guidance. Therefore, in addition to the function of protecting the radar, the radome is required to have a good penetration effect on the electromagnetic waves in the radar's own working band. [0003] At this stage, as the flight speed of the aircraft continues to increase, the speed of the hypersonic aircraft has reached Mach 6 or above. The radome on the head of the aircraft has become the main infrared detection source due to the high temperature generated by friction. Therefore, the infrared stealth of the radome on the head of the aircraft is important. increasingly prominent. Traditional infrared stealth materials, be...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/28
CPCG02B5/208G02B5/281
Inventor 汤洋高劲松王笑夷
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com