Composite scattering light-emitting panel

Abstract

The utility model discloses a composite scattering light-emitting panel which comprises an antireflection layer, a Rayleigh scattering layer, a transparent adhesive layer and a glass panel, the antireflection layer is arranged on one side of a light incident surface of the Rayleigh scattering layer, and the glass panel is arranged on one side of a light emergent surface of the Rayleigh scattering layer. And at least one transparent adhesive layer is arranged between the Rayleigh scattering layer and the glass panel. The composite scattering light-emitting panel can reduce the light reflectivity of an incident light beam and improve the light utilization rate, has a flat and high-hardness outer side surface, and is not prone to deformation.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, and in particular to a composite scattering light-emitting panel. Background Technique

[0002] The scattering of light refers to the phenomenon that a part of light deviates from the original direction when passing through an inhomogeneous medium. Using the principle of light scattering, scattering particles can be incorporated into a transparent sheet to prepare a scattering sheet. By controlling the average particle size of the scattering particles, Rayleigh scattering and Mie scattering effects can be achieved when the scattering sheet is irradiated by a light beam. Such a scattering sheet can be applied to the lighting field.

[0003] When the scattering sheet is irradiated by a light beam, the incorporated scattering particles will cause a decrease in the light transmittance, and part of the light is reflected by the sheet, resulting in an obvious loss of the outgoing light compared with the incident light. At the same time, since the scattering sheet is usually made of a polymer material, the surface hardness is relatively low and it is easy to be scratched, and it is also easy to deform, thus affecting the overall effect of the product. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a composite scattering light-emitting panel to solve the problems of low light utilization rate, low surface hardness of the sheet and easy deformation in the above-mentioned background technique.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A composite scattering light-emitting panel, comprising: an antireflection layer, a Rayleigh scattering layer, a transparent adhesive layer and a glass panel. The antireflection layer is arranged on one side of the light incident surface of the Rayleigh scattering layer, the glass panel is arranged on one side of the light outgoing surface of the Rayleigh scattering layer, and at least one layer of the transparent adhesive layer is arranged between the Rayleigh scattering layer and the glass panel.

[0007] In a possible design, between the Rayleigh scattering layer and the antireflection layer, there is also a Mie scattering layer. The antireflection layer is arranged on one side of the light incident surface of the Mie scattering layer, and the light outgoing surface of the Mie scattering layer is bonded to the light incident surface of the Rayleigh scattering layer through the transparent adhesive layer.

[0008] In a possible design, between the Rayleigh scattering layer and the glass panel, there is also a Mie scattering layer. The light incident surface of the Mie scattering layer is bonded to the light outgoing surface of the Rayleigh scattering layer through the transparent adhesive layer, and the light outgoing surface of the Mie scattering layer is bonded to the glass panel through the transparent adhesive layer.

[0009] In a possible design, on the outer surface side of the glass panel, there is also a hydrophobic layer.

[0010] In one possible design, the thickness of the Rayleigh scattering layer is 2 - 10 mm.

[0011] In one possible design, the thickness of the Mie scattering layer is 2 - 10 mm.

[0012] In one possible design, the thickness of the glass panel is 2 - 10 mm.

[0013] In one possible design, the average particle size of the scattering particles distributed in the Rayleigh scattering layer is 3 - 10 nm.

[0014] In one possible design, the average particle size of the scattering particles distributed in the Mie scattering layer is 100 - 500 nm.

[0015] In the above technical solution, a composite scattering light-emitting panel provided by the present utility model has the following beneficial effects compared with the prior art:

[0016] 1. In this composite scattering light-emitting panel, by adding an anti-reflection layer to the light incident surface of the scattering plate, the ratio of incident light is increased, and the light utilization rate is improved.

[0017] 2. In this composite scattering light-emitting panel, by adding a glass panel to the light exit surface of the scattering plate, the hardness of the outer surface of the composite plate is increased, making it not easy to be scratched. At the same time, the composite plate is flatter and not easy to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the structure of a composite scattering light-emitting panel provided by an embodiment of the present utility model;

[0020] Figure 2 Schematic diagram of the structure of a composite light-emitting panel including a Mie scattering layer between an anti-reflection layer and a Rayleigh scattering layer provided by another embodiment of the present utility model;

[0021] Figure 3 Schematic diagram of the structure of a composite scattering light-emitting panel including a Mie scattering layer between a Rayleigh scattering layer and a glass panel provided by another embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the structure of a composite scattering light-emitting panel with a hydrophobic layer provided on the outer surface of the glass panel provided by three embodiments of the present utility model.

[0023] Reference numerals:

[0024] 1, antireflection layer; 2, Rayleigh scattering layer; 3, transparent adhesive layer; 4, glass panel; 5, Mie scattering layer; 6, hydrophobic layer. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0027] The scattering of light refers to the phenomenon that part of the light deviates from the original direction of propagation when passing through an inhomogeneous medium. Rayleigh scattering is an optical phenomenon, which belongs to a type of scattering and is also called "molecular scattering". When the particle size is much smaller than the wavelength of the incident light (less than one-tenth of the wavelength), the scattering light intensities in all directions are different, and this intensity is inversely proportional to the fourth power of the wavelength of the incident light. This phenomenon is called Rayleigh scattering; Mie scattering occurs when the diameter of the particles in the atmosphere is comparable to the wavelength of the radiation. This scattering is mainly caused by particles in the atmosphere, such as smoke, dust, small water droplets and aerosols, etc. The scattering intensity of Mie scattering is proportional to the square of the frequency, and the scattering is stronger in the forward direction of the light than in the backward direction, and the directivity is relatively obvious. By using the principle of light scattering, scattering particles can be incorporated into a transparent sheet to prepare a scattering sheet. When the scattering sheet is irradiated by a light beam, the Rayleigh scattering and Mie scattering effects can be achieved by controlling the average particle size of the scattering particles.

[0028] Figure 1 Schematic structural diagram of a composite scattering light-emitting panel provided by an embodiment of the present utility model;

[0029] As Figure 1As shown in the figure, the composite scattering light-emitting panel provided in this embodiment includes: an antireflection layer 1, a Rayleigh scattering layer 2, a transparent adhesive layer 3, and a glass panel 4. The antireflection layer 1 is disposed on one side of the light incident surface of the Rayleigh scattering layer 2, the glass panel 4 is disposed on one side of the light exit surface of the Rayleigh scattering layer 2, and at least one layer of the transparent adhesive layer 3 is disposed between the Rayleigh scattering layer 2 and the glass panel 4.

[0030] The antireflection layer 1 is prepared by forming one or more optical thin films on the outer surface of the light incident side of the composite scattering light-emitting panel provided in this embodiment. When a light beam is incident on the surface of the optical thin film, a part of the light is reflected at the interface, and another part of the light enters the optical thin film and is reflected back on the other side. By controlling the thickness of the optical thin film, the optical path difference between the two reflected light beams is exactly half a wavelength, resulting in destructive interference. According to the law of conservation of energy, the energy of the reflected light is reduced, and the energy of the incident light is increased. Compared with the untreated scattering plate, the utilization rate of light is improved.

[0031] The Rayleigh scattering layer 2 can be formed by extruding a transparent organic polymer material added with nano-scattering particles. Preferably, the sheet substrate material can be made of optical grade polymethyl methacrylate (PMMA), and titanium dioxide particles with an average particle size of 3-10 nm are doped inside.

[0032] The transparent adhesive layer 3 can be prepared by using commonly used organic polymers in industry as adhesives, such as polystyrene, polyurethane, acrylic resin, alkyd polymer, polyester, silicone-containing polymer, epoxy group-containing polymer, etc. or a combination thereof.

[0033] The glass panel 4 can be made of mirror glass or flat glass with at least one diffused surface. Compared with the Rayleigh scattering layer 2 made of polymer material, the glass panel 4 has higher surface hardness and flatness, and is not easily deformed, making it easier to maintain when used as the light exit surface of the product.

[0034] Figure 2 Schematic structural diagram of a composite scattering light-emitting panel including a Mie scattering layer 5 between the antireflection layer 1 and the Rayleigh scattering layer 2 provided in another embodiment of the present invention;

[0035] As Figure 2 shown in the figure, in this embodiment, between the Rayleigh scattering layer 2 and the antireflection layer 1, there is also a Mie scattering layer 5. The antireflection layer 1 is disposed on one side of the light incident surface of the Mie scattering layer 5, and the light exit surface of the Mie scattering layer 5 and the light incident surface of the Rayleigh scattering layer 2 are bonded through the transparent adhesive layer 3.

[0036] The Mie scattering layer 2 can be formed by extruding a transparent organic polymer material added with nano-scattering particles. Preferably, the substrate material of the plate can be made of optical grade polymethyl methacrylate (PMMA), and titanium dioxide particles with an average particle size of 100 - 500 nm are doped inside.

[0037] Mie scattering occurs when the diameter of the particles in the atmosphere is comparable to the wavelength of the radiation. This kind of scattering is mainly caused by particles in the atmosphere, such as smoke, dust, small water droplets and aerosols, etc. The scattering intensity of Mie scattering is proportional to the square of the frequency, and the scattering is stronger in the forward direction of the light than in the backward direction, with obvious directivity. By adding the Mie scattering layer 5 to the composite scattering light-emitting panel, it is convenient to change the overall brightness of the composite scattering light-emitting panel under the irradiation of the same light beam by adjusting the formula of the Mie scattering layer 5, and the blue tone of the Rayleigh scattering layer 2 will also change. This phenomenon corresponds to the change of the blue sky tone under different air environmental states, which brings convenience to the preparation of the scattering plate in the actual application of products, such as the selection of products for simulating sky lighting.

[0038] Figure 3 Schematic structural diagram of a composite scattering light-emitting panel including a Mie scattering layer 5 between the Rayleigh scattering layer 2 and the glass panel 4 provided by another embodiment of the present invention;

[0039] As Figure 3 shown, in this embodiment, between the Rayleigh scattering layer 2 and the glass panel 4, there is also a Mie scattering layer 5. The light incident surface of the Mie scattering layer 5 and the light exit surface of the Rayleigh scattering layer 2 are bonded through the transparent adhesive layer 3, and the light exit surface of the Mie scattering layer 5 and the glass panel 4 are bonded through the transparent adhesive layer 3.

[0040] Figure 4 Schematic structural diagram of a composite scattering light-emitting panel with a hydrophobic layer 6 provided on the outer surface of the glass panel 4 according to three embodiments of the present invention;

[0041] As Figures 1-4 shown, on one side of the outer surface of the glass panel 4, there is also a hydrophobic layer 6.

[0042] The hydrophobic layer 6 can be made of fluorocarbon-based hydrophobic materials or silicon-based hydrophobic materials or nano-hydrophobic materials. In some cases, when the temperature of an object is less than or equal to the dew point temperature, the water vapor in the air reaches saturation, and water droplets will condense on the surface of the object. The hydrophobic layer 6 can effectively prevent water droplets from aggregating excessively on the surface of this composite scattering light-emitting panel, reducing the maintenance cost.

[0043] As Figures 1-3 shown, the thickness of the Rayleigh scattering layer 2 is 2 - 10 mm.

[0044] As Figures 2-3As shown, the thickness of the Mie scattering layer 5 is 2 - 10 mm.

[0045] As Figures 1-3 shown, the thickness of the glass panel 4 is 2 - 10 mm.

[0046] As Figures 1-3 shown, the average particle size of the scattering particles distributed in the Rayleigh scattering layer 2 is 3 - 10 nm.

[0047] As Figures 2-3 shown, the average particle size of the scattering particles distributed in the Mie scattering layer 5 is 100 - 500 nm.

[0048] Only some exemplary embodiments of the present invention have been described above by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and scope of the present invention shall be included within the protection scope of the present invention.

Claims

1. A composite scattering light-emitting panel, characterized in that, Comprising: An antireflection layer, a Rayleigh scattering layer, a transparent adhesive layer, and a glass panel. The antireflection layer is disposed on one side of the light incident surface of the Rayleigh scattering layer, and the glass panel is disposed on one side of the light exit surface of the Rayleigh scattering layer. At least one layer of the transparent adhesive layer is disposed between the Rayleigh scattering layer and the glass panel.

2. The composite scattering light-emitting panel according to claim 1, wherein, Between the Rayleigh scattering layer and the antireflection layer, a Mie scattering layer is further included. The antireflection layer is disposed on one side of the light incident surface of the Mie scattering layer, and the light exit surface of the Mie scattering layer and the light incident surface of the Rayleigh scattering layer are bonded by the transparent adhesive layer.

3. A composite scattering light-emitting panel according to claim 1, characterized in that Between the Rayleigh scattering layer and the glass panel, a Mie scattering layer is further included. The light incident surface of the Mie scattering layer and the light exit surface of the Rayleigh scattering layer are bonded by the transparent adhesive layer, and the light exit surface of the Mie scattering layer and the glass panel are bonded by the transparent adhesive layer.

4. A composite scattering light-emitting panel according to claim 1 or 2 or 3, characterized in that, On one side of the outer surface of the glass panel, a hydrophobic layer is further included.

5. A composite scattering light-emitting panel according to claim 1 or 2 or 3, characterized in that, The thickness of the Rayleigh scattering layer is 2 - 10 mm.

6. A composite scattering light-emitting panel according to claim 2 or 3, characterized in that, The thickness of the Mie scattering layer is 2 - 10 mm.

7. A composite scattering light-emitting panel according to claim 1 or 2 or 3, characterized in that The thickness of the glass panel is 2 - 10 mm.

8. A composite scattering light-emitting panel according to claim 1 or 2 or 3, characterized in that, The average particle size of the scattering particles distributed in the Rayleigh scattering layer is 3 - 10 nm.

9. A composite scattering light-emitting panel according to claim 2 or 3, characterized in that, The average particle size of the scattering particles distributed in the Mie scattering layer is 100 - 500 nm.

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