Low-reflectivity coated heat-insulating glass

Abstract

The utility model discloses low-reflectivity coated heat insulation glass which comprises an MgF2 film layer, an AL2O3 film layer, a SiO2 film layer, a TIO2 film layer and a glass layer which are sequentially arranged, and the thickness of the MgF2 film layer, the thickness of the AL2O3 film layer, the thickness of the SiO2 film layer and the thickness of the TIO2 film layer are 110 nm, 100 nm, 176 nm and 72 nm respectively. Compared with a traditional antireflection structure composed of 10-20 alternately arranged high-refractive-index film layers and low-refractive-index film layers, the wide-angle antireflection structure has the advantages that the number of the film layers is reduced, the production efficiency is improved, and wide-angle antireflection of the coated heat-insulating glass is realized, so that the reflectivity of the coated heat-insulating glass is less than 1.5% when the incident angle of visible light is 0-45 degrees.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass, in particular to a low-reflectivity coated heat-insulating glass. BACKGROUND

[0002] The wide-angle anti-reflection requirement of the coated heat-insulating glass is derived from its extensive demand in practical application. In the fields of building and automobile, the glass is usually installed at different angles and positions, so it is necessary to ensure that the reflected light can be effectively reduced at different incident angles, thereby providing a clear visual experience and reducing glare.

[0003] At present, the glass surface is usually coated with a structure of 10-20 layers of high-refractive film layers and low-refractive film layers to reduce reflected light, but the coating efficiency of 10-20 layers of film layers is low. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a low-reflectivity coated heat-insulating glass, which adopts the technical scheme of:

[0005] A low-reflectivity coated heat-insulating glass, comprising MgF2 film layer, AL2O3 film layer, SiO2 film layer and TIO2 film layer and glass layer arranged in sequence, the thickness of the MgF2 film layer, AL2O3 film layer, SiO2 film layer and TIO2 film layer is 110nm, 100nm, 176nm and 72nm respectively.

[0006] As a preferred embodiment of the present application, the low-reflectivity coated heat-insulating glass further comprises a gradient refractive index layer arranged between the glass layer and the TIO2 film layer, the refractive index of the gradient refractive index layer gradually decreases from 1.5 to 1.1 from one side close to the glass layer to the other side.

[0007] As a preferred embodiment of the present application, the material of the gradient refractive index layer is porous SiO2.

[0008] As a preferred embodiment of the present application, the reflectivity of the low-reflectivity coated heat-insulating glass is less than 1.5% when the incident angle of visible light is 0-45°.

[0009] The utility model discloses the beneficial effect: compared with the traditional 10-20 high refractive index film layers and low refractive index film layers of alternate setting antireflection structure, reduce the film quantity, improve production efficiency, utilize MgF2 film layer, AL2O3 film layer, SiO2 film layer and TIO2 film layer's thickness combination and interference effect, introduce additional phase delay, compensate the interference condition deviation caused by angle change when oblique incidence, reduce the sensitivity of antireflection structure to incident angle, realize the wide angle antireflection of the coated heat insulation glass, so that the reflectivity of the coated heat insulation glass is less than 1.5% when the incident angle of visible light is 0-45 degrees. BRIEF DESCRIPTION OF DRAWINGS

[0010] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0011] Figure 1 It is the structure diagram of low reflectivity's coated heat insulation glass of this embodiment. DETAILED DESCRIPTION

[0012] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the function of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0013] In the description of the utility model, the meaning of multiple is two or more, greater than, less than, more than, etc. are not included in the number, above, below, etc. are included in the number. If it is described to the first, the second is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0014] In the description of the utility model, it is understood that the orientation description is involved, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, so it cannot be understood as the limitation of the utility model.

[0015] In the utility model, unless otherwise specifically limited, the words such as "arrange", "install", "connect" should be understood in broad sense, for example, can be directly connected, also can be indirectly connected through intermediate medium;Can be fixedly connected, also can be detachably connected, can also be integrally formed;Can be mechanical connection;Can be the communication or mutual action relation of two elements inside two elements.

[0016] Reference Figure 1 The embodiment of the present application is proposed, the low reflectivity coated heat insulation glass of the embodiment includes MgF2 film layer 10, AL2O3 film layer 20, SiO2 film layer 30 and TIO2 film layer 40 and glass layer 50 arranged in sequence, the thickness of MgF2 film layer 10, AL2O3 film layer 20, SiO2 film layer 30 and TIO2 film layer 40 is 110nm, 100nm, 176nm, 72nm.

[0017] Compared with the conventional 10-20 high refractive index film layers and low refractive index film layers of the alternate setting of the anti-reflection structure, the number of film layers is reduced, the production efficiency is improved, the thickness combination and interference effect of MgF2 film layer 10, AL2O3 film layer 20, SiO2 film layer 30 and TIO2 film layer 40 are utilized, additional phase delay is introduced, the interference condition deviation caused by angle change when oblique incidence is compensated, the sensitivity of anti-reflection structure to incident angle is reduced, wide-angle anti-reflection of coated heat insulation glass is realized, so that the reflectivity of coated heat insulation glass is less than 1.5% when the incident angle of visible light is 0-45 °.

[0018] Based on the above, it also includes a gradient refractive layer 60 arranged between the glass layer 50 and the TIO2 film layer 40, the refractive index of the gradient refractive layer 60 gradually decreases from 1.5 to 1.1 from the side close to the glass layer 50 to the other side, and the Fresnel reflection is reduced by the gradient refractive layer 60 structure. Specifically, the material of the gradient refractive layer 60 is porous SiO2.

[0019] Of course, the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can make equivalent transformation or replacement without departing from the spirit of the utility model, and these equivalent transformations and replacements are all included in the range defined by the claims of the present application.

Claims

1. Low-reflectance coated heat-protective glass, characterized in that, The film-coated heat-insulating glass comprises MgF2 film layer (10), AL2O3 film layer (20), SiO2 film layer (30), TIO2 film layer (40) and glass layer (50) arranged in sequence, the thickness of the MgF2 film layer (10), AL2O3 film layer (20), SiO2 film layer (30) and TIO2 film layer (40) is 110 nm, 100 nm, 176 nm and 72 nm respectively.

2. The low-e coated glazing according to claim 1, wherein, The film-coated heat-insulating glass further comprises a gradient refractive index layer (60) arranged between the glass layer (50) and the TIO2 film layer (40), the refractive index of the gradient refractive index layer (60) gradually decreases from 1.5 to 1.1 from the side close to the glass layer (50) to the other side.

3. The low-e coated glazing according to claim 2, wherein, The material of the gradient refractive index layer (60) is porous SiO2.

4. The low reflective coated glazing according to claim 1, wherein The film-coated heat-insulating glass has a reflectivity less than 1.5% when the incident angle of visible light is 0-45°.

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