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Single-dielectric-layer off-line coated low-emissivity glass

A low-emissivity glass and dielectric layer technology, which is applied in the fields of glass manufacturing and energy conservation and environmental protection, can solve the problems of high production costs, achieve the effects of increased productivity, improved stability, and high deposition rate

Inactive Publication Date: 2010-05-19
李德杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims at the deficiencies and shortcomings of offline low-emissivity glass in the prior art, and provides a low-emissivity glass which not only has the characteristics of common material, stable performance, and no oxidation at all, but also solves the problem of high production cost of existing products. Problems that can promote the large-scale application of low-e energy-saving glass

Method used

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  • Single-dielectric-layer off-line coated low-emissivity glass
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  • Single-dielectric-layer off-line coated low-emissivity glass

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Embodiment 1

[0018] Embodiment 1: low-emissivity glass, its structure is: glass plate, 10 nanometer thick silver layer, 11 nanometer thick dielectric layer. The dielectric layer is made of silicon-oxygen film, the part with the highest silicon component has a refractive index of 4.0, and the part with the lowest silicon component has a refractive index of 1.5. The visible light transmittance of the low-emissivity glass exceeds 75%, the sunlight transmittance exceeds 55%, and the radiation coefficient is less than 0.05.

Embodiment 2

[0019] Embodiment 2: low-emissivity glass, its structure is: glass plate, 10 nanometers thick silver layer, 12 nanometers thick dielectric layer. The dielectric layer is made of silicon-aluminum-nitrogen thin film, the atomic number ratio between silicon and aluminum is 15:1, the part with the highest silicon-aluminum component has a refractive index of 3.8, and the part with the lowest silicon component has a refractive index of 2.0. The visible light transmittance of the low-emissivity glass exceeds 80%, the sunlight transmittance exceeds 60%, and the radiation coefficient is less than 0.05.

Embodiment 3

[0020] Embodiment 3: low-emissivity glass, its structure is: glass plate, 10 nanometer thick silver layer, 20 nanometer thick dielectric layer. The dielectric layer is made of silicon oxygen nitrogen film, the part with the highest silicon component has a refractive index of 3.0, and the part with the lowest silicon component has a refractive index of 1.6. The visible light transmittance of the low-emissivity glass exceeds 80%, the sunlight transmittance exceeds 60%, and the radiation coefficient is less than 0.05.

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Abstract

The invention relates to low-emissivity glass which belongs to the field of energy-saving technology and has a single silver coating structure. The low-emissivity glass only uses one dielectric layer. In the basic structure, the low-emissivity glass orderly comprises a glass substrate 10, a silver coating 11 and a dielectric layer 12, wherein the dielectric layer comprises 1-10 sublayers, and the sublayers comprise a silicon film, a silicon alloy film, a silicon-oxygen film, a silicon-nitrogen film, a silicon-oxygen-nitrogen film, a silicon alloy-oxygen film, a silicon alloy-nitrogen film, a silicon alloy-oxygen-nitrogen film, a transition metal-nitrogen film and the like. The low-emissivity glass of the invention has the advantages of stable performance, high reliability and high production efficiency, can greatly reduce the cost, and is beneficial to large-scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of glass manufacturing and energy saving and environmental protection. Background technique [0002] Low-emissivity glass is a glass with one or more layers of transparent conductive film deposited on the surface of the glass, which can transmit most of the visible light in sunlight, reflect some of the infrared rays, and has a very low far-infrared emissivity (radiation coefficient) , the heat insulation effect is very obvious. In developed countries in the world, most buildings use this kind of low-emissivity glass. In our country, the application of low-emissivity glass is not very extensive, the main reason is the cost problem. Because the price is much higher than ordinary white glass, it can only be used in high-end buildings, and it is rarely used in residential buildings. [0003] Low-emissivity glass is divided into two types: on-line coating and off-line coating. Among them, off-line coating low...

Claims

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Application Information

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IPC IPC(8): C03C17/36
Inventor 李德杰
Owner 李德杰
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