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High-efficiency gold reflective film suitable for 7.5-12 μm wave band and preparation method thereof

A reflective film and high-efficiency technology, applied in mirrors, instruments, optics, etc., can solve problems such as the inability to meet the requirements of new optical instruments, and achieve the effect of improving matching and combining ability, avoiding high rejection rate, and improving reflectivity.

Active Publication Date: 2021-12-07
YUNNAN KIRO CH PHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the average reflectance in the 7.5-12 μm band of the gold reflective film is 98.5% in the prior art, which cannot well meet the requirements for use of new optical instruments, the technical solution of the present invention is as follows:

Method used

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  • High-efficiency gold reflective film suitable for 7.5-12 μm wave band and preparation method thereof
  • High-efficiency gold reflective film suitable for 7.5-12 μm wave band and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Select Φ25.4×3mm planar glass-ceramic substrate material, in the range of 7.5-12μm in the wave band, on the surface layer of one surface of the substrate, at 100°C, first coat Cr film and Au film layer, and then at 165°C Next, using the Kaufman ion source assisted deposition method, filling the argon gas flow rate of 3.0sccm, anode voltage 75V, cathode voltage 9V, cathode current 10A, the remaining 7 layers of infrared dielectric material film layers are plated to obtain the present invention. High-efficiency gold reflective coating for 7.5-12μm band.

[0021] The reflectance of the high-efficiency gold reflective film on the glass-ceramics substrate was measured, and the average reflectance of the high-efficiency gold reflective film on the glass-ceramics was measured to be 99.32%.

[0022] According to the national military standard GJB2485-1995, the part was subjected to adhesion force and damp heat measurement tests on the high-efficiency gold reflective film of gla...

Embodiment 2

[0024] Select a flat glass-ceramic substrate material of Φ50×5mm, and in the range of 7.5-12μm in the wave band, on the surface layer of one surface of the substrate, at 105°C, first coat Cr film and Au film layer, and then at 165°C, Adopt Kaufmann ion source assisted deposition method, fill in argon gas flow rate 3.0sccm, anode voltage 70V, cathode voltage 10V, cathode current 12A, plate the remaining 7 layers of infrared dielectric material film layers, obtain the applicable 7.5 layers of the present invention. - High-efficiency gold reflective coating in the 12μm band.

[0025] Such as figure 2 As shown, the reflectance of the high-efficiency gold reflective film on the glass-ceramics substrate was measured, and the average reflectance of the high-efficiency gold reflective film on the glass-ceramics was measured to be 99.50%.

[0026] According to the national military standard GJB2485-1995, the part was subjected to adhesion force and damp heat measurement tests on the ...

Embodiment 3

[0028] Select a 30×30mm flat glass-ceramic substrate material, and in the range of 7.5-12μm, in the range of 7.5-12μm, on the surface layer of one surface of the substrate, at 100°C, first coat the Cr film and the Au film layer, and then at 160°C, Adopt Kaufmann ion source assisted deposition method, fill in argon gas flow rate 3.0sccm, anode voltage 70V, cathode voltage 9.5V, cathode current 11A, plate remaining 7 layers of infrared dielectric material film layers, obtain described applicable of the present invention High-efficiency gold reflective coating in the 7.5-12μm band.

[0029] The reflectance of the high-efficiency gold reflective film on the glass-ceramics substrate was measured, and the average reflectance of the high-efficiency gold reflective film on the glass-ceramics was measured to be 99.45%.

[0030] According to the national military standard GJB2485-1995, the part was subjected to adhesion force and damp heat measurement tests on the high-efficiency gold r...

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Abstract

The invention discloses a high-efficiency gold reflective film suitable for the 7.5-12 μm wave band and a preparation method thereof, and relates to the technical field of infrared coating. Can not well meet the technical problems of the use requirements of new optical instruments, the technical scheme of the present invention is as follows: including the glass-ceramic base layer and the air layer from bottom to top, and also including the glass-ceramic base layer and the air layer arranged between the The film layer structure is a Cr layer, Au layer, Y2O3 layer, ZnSe layer, YbF3 layer, Ge layer, ZnSe layer, Ge layer, ZnSe layer connected in sequence from bottom to top.

Description

technical field [0001] The invention relates to the technical field of infrared coating, in particular to a high-efficiency gold reflective film applicable to the 7.5-12 μm wave band and a preparation method thereof. Background technique [0002] Gold reflective film has high reflectivity in near-infrared, mid-infrared and far-infrared, and its plating method is relatively simple. Compared with aluminum and silver reflective films, it is less prone to pollution in the atmosphere, so it is widely used. However, with the development of modern optical instruments and equipment, the requirements for gold reflective coatings are getting higher and higher, especially the reflectivity requirements. A single layer of gold film can no longer meet the requirements of use. The gold reflective film of the prior art has 5 film layers including the glass-ceramic base layer and the air layer, and the film layer structure is: glass-ceramics︱Cr, Au, Al 2 o 3 ︱Air. Although the number of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/08C03C17/36
CPCC03C17/36C03C17/3621C03C17/3631C03C17/3639C03C17/3649G02B5/0875
Inventor 李刚杨伟声张友良田湫董力吴栋才
Owner YUNNAN KIRO CH PHOTONICS
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