CN216431605U - Sky lamp - Google Patents

Abstract

The application provides a sky lamp, which comprises an LED lamp source, a light guide plate, a reflecting plate and a Rayleigh scattering plate; the light guide plate is provided with a reflection side and a light-emitting side which are oppositely arranged, and the light guide plate is also provided with a light-in side connected between the reflection side and the light-emitting side; the LED lamp source is arranged on the light incident side of the light guide plate, the reflecting plate is arranged on the reflecting side of the light guide plate, and the Rayleigh scattering plate is arranged on the light emergent side of the light guide plate; the rayleigh scattering plate is doped with scattering particles, and the rayleigh scattering plate is used for rayleigh scattering of light beams emitted from the light emitting side to emit blue light beams. The utility model provides a sky lamp carries out homogenization treatment through the light beam that the light guide plate sent the LED lamp source for the light beam that incides the rayleigh scattering board can evenly distributed, thereby makes the distance between light guide plate and the rayleigh scattering board can be littleer, and in addition whole sky lamp sets to the side formula structure of going into light, thereby makes the thickness of whole sky lamp can set up littleer, not only practices thrift the cost, also is convenient for simultaneously install.

Description

Sky lamp

Technical Field

The application relates to the technical field of lighting, in particular to a sky lamp.

Background

The sky lamp is used as a novel lamp form, and provides a more comfortable light environment for people in the office environment of a high-rise building by simulating the sunlight and the blue sky effect of the nature, so that people are more happy

In the existing sky light, a light source is mostly directly arranged at the light incident side of a scattering layer, and in order to enable light beams emitted by the light source to be refracted to the scattering layer, the interval between the light source and the scattering layer needs to be set to be large; in addition, in order to enable the light beam to uniformly irradiate the scattering layer, a certain thickness needs to be reserved between the light source and the scattering layer, and finally the thickness of the whole sky lamp is thick, the occupied space is large, and the sky lamp is thicker and is not beneficial to installation.

SUMMERY OF THE UTILITY MODEL

The application provides a sky lamp to the thickness that exists among the solution prior art is thick leads to occupation space big and be unfavorable for the technical problem of installation.

In order to solve the above problems, the embodiment of the present application provides a technical solution that: a sky lamp comprises an LED lamp source, a light guide plate, a reflecting plate and a Rayleigh scattering plate; the light guide plate is provided with a reflection side and a light-emitting side which are oppositely arranged, and the light guide plate is also provided with a light-in side connected between the reflection side and the light-emitting side; the LED lamp source is arranged on the light incident side of the light guide plate, the reflecting plate is arranged on the reflecting side of the light guide plate, and the Rayleigh scattering plate is arranged on the light emergent side of the light guide plate; the rayleigh scattering plate is doped with scattering particles, and is used for rayleigh scattering light beams emitted from the light emitting side to emit blue light beams.

According to the sky lamp that this application embodiment provided, through the light guide plate, the setting of rayleigh scattering board and reflecting plate, and locate the side income light side of light guide plate with the LED lamp source, locate the reflecting side of light guide plate with the reflecting plate, locate the light-emitting side of light guide plate with the rayleigh scattering board, then can carry out homogenization treatment with the light beam that the LED lamp source sent through the light guide plate, make the light beam of inciting into the rayleigh scattering board can evenly distributed, thereby make the distance between light guide plate and the rayleigh scattering board can be littleer, in addition whole sky lamp sets up into side income light formula structure, thereby make the thickness of whole sky lamp set up littleer, not only save cost, simultaneously also be convenient for install, can directly replace panel light and cupboard lamp etc.. In addition, through cooperation of the light guide plate and the Rayleigh scattering plate, the blue effect of the light beam emitted from the Rayleigh scattering plate is better, and the customer experience is better.

In a possible design, the distance between the light guide plate and the rayleigh scattering plate ranges from 5mm to 50 mm.

In one possible design, a side of the rayleigh scattering plate facing the light guide plate is a frosted surface, and a side of the rayleigh scattering plate facing away from the light guide plate is a polished surface.

In one possible design, the rayleigh scattering plate includes a plurality of plate layers doped with scattering particles, and the plate layers are sequentially laminated and attached.

In one possible design, the number of plies ranges from 1 to 5.

In one possible design, the plate layer includes a transparent plate and a number of scattering particles incorporated into the transparent plate;

the scattering particles in the transparent plates of all layers are arranged in the same way;

or the scattering particles in the transparent plates of all layers are arranged differently.

In one possible design, the scattering particles have a diameter in the range of 10nm to 500 nm.

In one possible design, the thickness of the rayleigh scattering plate ranges from 2mm to 5 mm.

In a possible design, the light guide plate is rectangular, and the two opposite light incident sides of the light guide plate are provided with strip-shaped LED light sources.

In one possible design, the light guide plate is rectangular, and the four light incident sides of the light guide plate are provided with strip-shaped LED light sources.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a sky light provided by an embodiment of the present application;

fig. 2 is a schematic structural view of the rayleigh scattering plate of fig. 1.

Reference numerals: 10. an LED light source; 20. a light guide plate; 21. a reflective side; 22. a light emitting side; 23. a light incident side; 30. a reflective plate; 40. a Rayleigh scattering plate; 41. a ply layer; 411. a transparent plate; 412. scattering particles; 42. sanding surface; 43. and (4) a smooth surface.

Detailed Description

In order to make the objects, 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 drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be understood that the terms "inner," "outer," "upper," "bottom," "front," "back," and the like, if any, refer to the orientation or positional relationship shown in FIG. 1, which is used for ease of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

It should be noted that the same reference numerals are used to denote the same components or parts in the embodiments of the present application, and for the same parts in the embodiments of the present application, only one of the parts or parts may be given the reference numeral, and it should be understood that the reference numerals are also applicable to the other same parts or parts.

As shown in fig. 1, the present embodiment provides a skylight including an LED light source 10, a light guide plate 20, a reflector 30, and a rayleigh scattering plate 40.

The light guide plate 20 has a reflection side 21 and a light exit side 22 which are oppositely arranged, the light guide plate 20 further has a light entrance side 23 connected between the reflection side 21 and the light exit side 22, the LED light source 10 is arranged on the light entrance side 23 of the light guide plate 20, the reflection plate 30 is arranged on the reflection side 21 of the light guide plate 20, and the rayleigh scattering plate 40 is arranged on the light exit side 22 of the light guide plate 20.

Referring to fig. 1, the upper side of the light guide plate 20 is a reflection side 21, the lower side of the light guide plate 20 is a light exit side 22, and four side surfaces of the light guide plate 20 are light entrance sides 23.

The light guide plate 20 is formed by printing light guide points on the top surface of an optical acrylic plate by using laser engraving, V-shaped cross grid engraving and UV screen printing techniques, using an optical acrylic/PC plate and then using a high-tech material with a very high refractive index and no light absorption. The optical acrylic sheet is used for absorbing the light coming out of the LED lamp source 10 to stay on the surface of the optical acrylic sheet, when the light beam irradiates each light guide point, the reflected light can be diffused towards each angle, and then the reflected light is damaged and is emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The purpose of the reflective plate 30 is to reflect the light exposed from the top surface of the light guide plate 20 back into the light guide plate 20, so as to improve the utilization efficiency of the light; under the condition of equal area brightness, the luminous efficiency is high and the power consumption is low.

The rayleigh scattering plate 40 is doped with scattering particles 412, and the rayleigh scattering plate 40 is configured to rayleigh scatter the light beam emitted from the light exit side 22 of the light guide plate 20 to emit a blue light beam.

The rayleigh scattering plate 40 performs a rayleigh scattering action on the light flux emitted from the light guide plate 20. Among them, rayleigh scattering refers to a scattering phenomenon. When the size of the scattering particles 412 in the rayleigh scattering plate 40 is much smaller than the wavelength of the incident light (less than one tenth of the wavelength), the intensity of the scattered light in each direction is different, and the intensity is proportional to the fourth power of the frequency of the incident light, resulting in more light scattering in the blue color, and thus the sky appears blue. This phenomenon is called rayleigh scattering.

The rayleigh scattering plate 40 is manufactured to have the same effect as a blue sky by adding a certain amount of scattering particles 412 to optical plastic or optical glass material to increase scattering of blue light by utilizing the principle of rayleigh scattering.

The utility model provides a sky lamp, through light guide plate 20, the setting of rayleigh scattering board 40 and reflecting plate 30, and locate LED lamp source 10 the side income light side 23 of light guide plate 20, locate reflecting plate 30 the reflection side 21 of light guide plate 20, locate the light-emitting side 22 of light guide plate 20 with rayleigh scattering board 40, then can carry out homogenization treatment with the light beam that LED lamp source 10 sent through light guide plate 20, make the light beam of inciding rayleigh scattering board 40 can evenly distributed, thereby make the distance between light guide plate 20 and the rayleigh scattering board 40 can be littleer, in addition whole sky lamp sets up into the side and goes into light formula structure, thereby make the thickness of whole sky lamp can set up littleer, not only practice thrift the cost, the installation of also being convenient for simultaneously, can directly replace panel light and cupboard lamp etc.. In addition, through cooperation of the light guide plate 20 and the rayleigh scattering plate 40, the blue color effect of the light beam emitted from the rayleigh scattering plate 40 is better, and the customer experience is better.

The light guide plate 20 is made of high temperature resistant optical plastic, and the material can resist temperature higher than 120 ℃. Because the light guide plate 20 is arranged beside the LED light source 10, the LED light source 10 generates a large amount of heat when emitting light, and the light guide plate 20 is made of a high temperature resistant material, so that the light guide plate 20 has a longer service life and a better light guide effect.

The distance between the light guide plate 20 and the rayleigh scattering plate 40 cannot be too small, which may cause the light beam on the light guide plate 20 to be uniformly incident into the rayleigh scattering plate 40; the distance between the light guide plate 20 and the rayleigh scattering plate 40 cannot be too large, which may cause the light beam emitted from the light guide plate 20 to be easily weakened at the light guide plate 20 and the rayleigh scattering plate 40, resulting in a weak light beam.

The distance between the light guide plate 20 and the Rayleigh scattering plate 40 is set within the range of 5mm-50mm through repeated tests. Experiments prove that when the distance between the light guide plate 20 and the rayleigh scattering plate 40 is in the range of 5mm-50mm, the light coming out of the light guide plate 20 can be uniformly incident on the incident surface (i.e. the upper surface of fig. 1) of the rayleigh scattering plate 40, and finally the effect closer to the real blue sky is presented.

Specifically, the distance between the light guide plate 20 and the rayleigh scattering plate 40 may be 5mm, 10mm, 20mm, 30mm, 40mm, 50mm, or the like, and as long as the distance is within a range of 5mm to 50mm, the effect closer to the real blue sky can be exhibited.

In addition, the thickness of the whole sky light can be controlled by controlling the distance between the light guide plate 20 and the rayleigh scattering plate 40. The thickness of the whole sky light is the whole thickness including the reflection plate 30, the light guide plate 20, the rayleigh scattering plate 40 and the outer frame. This application is through controlling the distance between light guide plate 20 and the rayleigh scattering plate 40 for the final thickness of sky lamp can be within 100mm, and this is at least in the sky lamp more than 180mm for the thickness among the prior art, and the thickness of sky lamp that can significantly reduce reduces, reduces the occupation space of sky lamp, does benefit to the installation of sky lamp, also makes the sky lamp smaller and more exquisite simultaneously, does benefit to and carries the transport.

In one embodiment, the side of the rayleigh scattering plate 40 facing the light guide plate 20 is a frosted surface 42 and the side of the rayleigh scattering plate 40 facing away from the light guide plate 20 is a smooth surface 43.

It should be noted that the frosted surface 42 refers to a surface with an uneven surface, that is, a microstructure is formed on one side of the rayleigh scattering plate 40 facing the light guide plate 20, and the light beam entering the rayleigh scattering plate 40 from the light guide plate 20 is subjected to uniform dispersion processing through the microstructure, so that the light beam entering the rayleigh scattering plate 40 is more uniform, and the effect closer to a real blue sky is finally presented. In addition, since the rayleigh scattering plate 40 is a transparent plate with the scattering particles 412 incorporated therein, the frosted surface 42 may serve to shield the scattering particles 412 so that the scattering particles 412 are not visible from the outside.

In one embodiment, referring to fig. 2, the rayleigh scattering plate 40 includes a plurality of plate layers 41, scattering particles 412 are doped in each plate layer 41, and the plate layers 41 are sequentially laminated and attached. Specifically, the plate layers 41 may be sequentially stacked by pressing. In this embodiment, the rayleigh scattering plate 40 is divided into a plurality of layers, so that the scattering particles 412 in each layer can be uniformly distributed, and further, the whole rayleigh scattering plate 40 is uniformly distributed, and the layers are obvious, and finally, the light beam distribution of the rayleigh scattering plate 40 is more uniform and closer to the effect of a real blue sky. It is understood that in other embodiments of the present application, when the scattering particles 412 in the rayleigh scattering plate 40 can be uniformly arranged in other manners, only one layer of rayleigh scattering plate 40 may be provided, and is not particularly limited herein.

It should be noted that, the more the number of the layer layers 41 is, the fewer the number of the layer layers of the scattering particles 412 distributed in each layer of the layer 41 is, so that the arrangement of the scattering particles 412 in each layer of the layer 41 is easier to control, the arrangement is more uniform, the arrangement of the whole rayleigh scattering plate 40 is more hierarchical, and the blue light emitted by the rayleigh scattering plate 40 is more effective. However, the larger the number of layers of the plate layer 41, the larger the thickness of the whole rayleigh scattering plate 40 and, ultimately, the whole sky lantern. In addition, when the number of the sheet layers 41 is smaller, the number of the scattering particles 412 distributed in each sheet layer 41 is larger, so that the arrangement of the scattering particles 412 in each sheet layer 41 is less easily controlled and is more non-uniform.

In one embodiment, the number of plies 41 may range from 1 to 5. Specifically, the number of the plate layers 41 may be 1, 2, 3, 4 or 5, wherein when the number of the plate layers 41 is 3 or 4, the blue light emitted from the rayleigh scattering plate 40 is more effective, and the thickness of the whole rayleigh scattering plate 40 is moderate, which does not affect the thickness of the whole sky light.

In one embodiment, referring to fig. 2, the plate layer 41 includes a transparent plate 411 and a plurality of scattering particles 412, and the plurality of scattering particles 412 are respectively doped into the transparent plate 411. However, the scattering particles 412 dispersed in each layer of the plate layer 41 are arranged in the same manner, so that the scattering particles 412 in the finally stacked rayleigh scattering plate 40 are distributed more uniformly, and the plate layers 41 can be manufactured in the same process during the manufacturing, thereby simplifying the manufacturing of the rayleigh scattering plate 40. It is understood that, in other embodiments of the present application, the arrangement of the scattering particles 412 dispersed in each of the laminated layers 41 may be different according to the actual design requirement, and is not limited herein.

The scattering particles 412 may be organic particles, inorganic particles, or metal particles, such as silicone particles, titanium dioxide particles, or aluminum particles, and the like.

In one embodiment, the diameter of the scattering particles 412 is in a range of 10nm to 500nm, so as to ensure that the light beams irradiated onto the scattering particles 412 can generate the rayleigh scattering effect, and can also perform a stronger scattering effect on the blue light band in the light beams to show a blue sky effect.

Specifically, the diameter of the scattering particles 412 may be 10nm, 100nm, 300nm, 500nm, or the like, as long as it is in the range of 10nm to 500 nm.

In one embodiment, the rayleigh scattering plate 40 has a rectangular parallelepiped shape, and the thickness of the rayleigh scattering plate 40 ranges from 2mm to 5 mm. In the embodiment, the thickness of the rayleigh scattering plate 40 is controlled, so that the rayleigh scattering effect of the rayleigh scattering plate 40 on incident light beams is better, and the thickness of the whole sky light can be controlled.

Specifically, the thickness of the rayleigh scattering plate 40 may be set according to the number of layers 41, the arrangement of the scattering particles 412 in each layer 41, the distance between the light guide plate 20 and the rayleigh scattering plate 40, and the like.

Preferentially, the thickness of the rayleigh scattering plate 40 is 2mm, which not only makes the rayleigh scattering plate 40 have better rayleigh scattering effect on the incident light beam, but also makes the thickness of the whole sky light thinner. It is to be understood that, in other embodiments of the present application, the thickness of the rayleigh scattering plate 40 may also be 3mm, 4mm, or 5mm, and the like, and is not particularly limited herein.

In one embodiment, referring to fig. 1, the light guide plate 20 is rectangular, and four light incident sides 23 are disposed between the reflection side 21 and the light exit side 22 of the light guide plate 20, wherein two of the light incident sides 23 of the light guide plate 20 disposed opposite to each other are provided with the LED light source 10, and the LED light source 10 is in a strip shape. During illumination, light beams emitted by the LED light sources 10 on both sides enter the light guide plate 20, the light guide plate 20 performs uniform processing on the light beams on both sides, and the light beams are reflected by the reflection plate 30, so that the light beams uniformly irradiate the rayleigh scattering plate 40 from the light exit side 22 of the light guide plate 20, and finally appear a sky blue color through the rayleigh scattering action of the rayleigh scattering plate 40. In this embodiment, through the arrangement of the LED light sources 10 on the two opposite sides, the light beams incident into the light guide plate 20 are relatively uniformly distributed, and the brightness of the light beams is stronger, so that the blue light emitted from the rayleigh scattering plate 40 is stronger, and the effect is better.

In another embodiment of the present application, the light guide plate 20 is also rectangular, and four light incident sides 23 are disposed between the reflection side 21 and the light exit side 22 of the light guide plate 20, and the strip-shaped LED light sources 10 are disposed on all the four light incident sides 23 of the light guide plate 20, so that the distribution of the light beams incident into the light guide plate 20 is more uniform, the brightness of the light beams is stronger, and finally the blue light emitted from the rayleigh scattering plate 40 is stronger.

In other embodiments of the present application, the light guide plate 20 may be disposed in a cylindrical shape, a hexagonal prism shape, an octagonal prism shape, or the like according to actual design requirements, and is not limited herein.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A sky lamp is characterized by comprising an LED lamp source, a light guide plate, a reflecting plate and a Rayleigh scattering plate; the light guide plate is provided with a reflection side and a light-emitting side which are oppositely arranged, and the light guide plate is also provided with a light-in side connected between the reflection side and the light-emitting side; the LED lamp source is arranged on the light incident side of the light guide plate, the reflecting plate is arranged on the reflecting side of the light guide plate, and the Rayleigh scattering plate is arranged on the light emergent side of the light guide plate; the rayleigh scattering plate is doped with scattering particles, and is used for rayleigh scattering light beams emitted from the light emitting side to emit blue light beams.

2. A skylight as set forth in claim 1, characterized in that the distance between said light guide plate and said rayleigh scattering plate is in the range of 5-50 mm.

3. A sky light as claimed in claim 1, characterized in that the side of the rayleigh scattering plate facing the light guide plate is frosted and the side of the rayleigh scattering plate facing away from the light guide plate is polished.

4. A sky lamp as set forth in claim 1, wherein said rayleigh scattering plate comprises a plurality of plate layers doped with scattering particles therein, and said plate layers are sequentially laminated and attached.

5. A skylight as set forth in claim 4 wherein said number of slabs is in the range of 1-5.

6. A skylight as set forth in claim 4, characterized in that said sheet layer comprises a transparent sheet and a number of scattering particles incorporated in said transparent sheet;

the scattering particles in the transparent plates of all layers are arranged in the same way;

or the scattering particles in the transparent plates of all layers are arranged differently.

7. A sky lamp as claimed in claim 4, characterized in that said scattering particles have a diameter in the range of 10nm-500 nm.

8. A skylight as set forth in claim 1 wherein said rayleigh scattering plate has a thickness in the range of 2mm-5 mm.

9. A sky light as claimed in any one of claims 1 to 8, wherein said light guide plate is rectangular and both of two oppositely disposed light incident sides of said light guide plate are provided with said LED light sources in the form of strips.

10. A sky light as claimed in any one of claims 1 to 8, wherein said light guide plate is rectangular parallelepiped shaped, and said strip-shaped LED light sources are provided on each of four of said light incident sides of said light guide plate.

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