WO2023164807A1 - Skylight - Google Patents

Abstract

Provided is a skylight, comprising: a first light source (10), used for emitting a first light ray (11); a light homogenizing element (20), arranged on a light emitting side of the first light source (10) and used for homogenizing the first light ray (11) entering the light homogenizing element (20); a light focusing element (30), arranged on a light emitting side of the light homogenizing element (20) and used for converging the first light ray (11) entering the light focusing element (30) from the light homogenizing element (20); a second light source (40), which is a point light source and is used for emitting a second light ray (41); and a window plate (50), which is used for scattering and transmitting the first light ray (11) emitted from the light focusing element (30) when the first light source (10) emits light and the second light source (40) does not emit light, so as to make a light emitting surface of the skylight show a blue sky scene, and is used for scattering and transmitting the second light ray (41) emitted from the second light source (40) when the first light source (10) does not emit light and the second light source (40) emits light, so as to make the light emitting surface of the skylight have a moon pattern. As for the skylight, the internal structure design of the skylight can be optimized, and difficulty of developing and designing the internal layout of the skylight can be reduced.

Description

a sky light technical field

The application belongs to the technical field of lamps, in particular to a sky lamp.

Background technique

The sky light is a new type of lamp, which can simulate the sun and the blue sky, making people feel like they are under the outside sky. When the sky light is installed indoors, it is equivalent to installing a skylight, which can provide people in the room with a A more comfortable light environment makes people feel happy.

In order to make the sky light more realistically connected with the outdoors, the existing sky light can not only simulate sunlight and blue sky, but also simulate the moon. In related technologies, the sky lamp achieves the effect of simulating the moon by adding a movable pattern plate near the light source. However, the above-mentioned implementation method will cause too many components to be installed near the light source, which will cause damage to the structural design and layout of the components near the light source. Restrictions increase the difficulty of structural design of sky lights.

technical problem

The present application provides a sky light, which can optimize the internal structure design of the sky light and reduce the difficulty of developing and designing the internal layout of the sky light.

technical solution

In order to solve the above problems, the technical solution provided by the embodiment of the present application is: a sky lamp, comprising a first light source for emitting first light; The first light entering the uniform light element is subjected to uniform light treatment; the light concentrating element is arranged on the light output side of the light uniform element, and is used for converging the The first light; the second light source, which is a point light source, is used to emit the second light; the window plate, when the first light source emits light and the second light source does not emit light, is used to control the light emitted from the light concentrating element The first light is scattered and transmitted so that the light emitting surface of the sky light shows a blue sky scene; when the first light source is not emitting light and the second light source is emitting light, it is used to The second light emitted by the light source is scattered and transmitted, so that the light emitting surface of the sky lamp has a moon pattern.

In a possible design, the first light source is a point light source, and when the first light source is emitting light and the second light source is not emitting light, the window plate will A light is scattered and transmitted, so that the light emitting surface of the sky light has a blue sky scene and a sun pattern.

In a possible design, when the first light source and the second light source are emitting light at the same time, the window plate responds to the first light emitted from the light concentrating element and the light emitted from the second light source. The second light is scattered and transmitted, so that the light-emitting surface of the sky light has a blue sky scene and a sun pattern.

In a possible design, the light-emitting surface of the first light source is rectangular, the uniform light element has a cuboid structure, and the value range of the length L of the uniform light element is: 3D≤L≤5D, wherein, D is the diagonal length of the light emitting surface of the first light source.

In a possible design, the sky light further includes a first reflective element, and the first reflective element is used to reflect the first light emitted from the light concentrating element to the window plate, or use for reflecting the second light emitted from the second light source to the window plate.

In a possible design, a driving element is provided on the first reflecting element, and the driving element is used to drive the first reflecting element to rotate so as to change the position of the moon pattern in the sky light. position on the light emitting surface.

In a possible design, a second reflective element is provided between the light concentrating element and the first reflective element and between the second light source and the first reflective element, and the second reflective element for reflecting the first light emitted from the light concentrating element to the first reflective element, or for reflecting the second light emitted from the second light source to the first reflective element .

In a possible design, the sky lamp further includes a plurality of pattern plates, each of the pattern plates is provided with a different moon phase figure, and each of the pattern plates can be replaceably applied to the second light source Between the second reflective element, different moon patterns can be presented on the light-emitting surface of the sky light.

In a possible design, the condensing element includes a plurality of condensing lenses arranged in parallel at intervals along the optical path, and the condensing lenses are used to control the light output angle of the first light source within 5 degrees to 45 degrees. between.

In a possible design, the light uniform element is a light uniform rod, and the first light emitted by the first light source undergoes at least three total reflections in the light uniform rod.

In a possible design, the dodging rod is a solid dodging rod or a hollow dodging rod.

In a possible design, the window plate is a Rayleigh scattering plate, and a plurality of nano-scattering particles are evenly distributed in the Rayleigh scattering plate, and the particle diameter of the nano-scattering particles ranges from 10 nm to 500 nm.

In a possible design, the second light source is disposed on an extension surface of the installation surface of the first light source.

In a possible design, the power of the second light source is smaller than the power of the first light source.

In a possible design, the power range of the second light source is 3W-15W.

In a possible design, the first light source and the second light source include any one of high color temperature white light spectrum, low color temperature white light spectrum, full sunlight spectrum, infrared band and ultraviolet band.

Beneficial effect

According to the sky lamp provided by the embodiment of the present application, during the daytime, people can turn on the first light source so that the first light source emits light and the second light source does not emit light. After homogenizing and concentrating light treatment, it enters the window plate, and the short-wavelength light in the first light entering the window plate will undergo Rayleigh scattering with the scattering particles inside the window plate, making the light-emitting surface of the sky light show a blue sky scene . When night falls, people can turn off the first light source and turn on the second light source, so that the second light source emits light and the first light source does not emit light. At this time, because the second light source is a point light source, people can see A light source similar to the shape of a full moon can make the light-emitting surface of the sky light have a moon pattern. By controlling the first light source to emit light or the second light source to emit light, the sky light can not only simulate the blue sky scene, but also simulate the moon scene at night, so that the sky light can have a more realistic sense of connection with the outside, and effectively solve the problem of fog and haze 1. The feeling of oppression that people cannot go to outdoor activities in rainy weather.

The sky lamp provided by the embodiment of the present application has the advantages of simple structure and easy implementation. By adding a second light source to make the light-emitting surface of the sky lamp have a moon pattern, the internal structure design of the sky lamp can be made more flexible, that is, it can be designed according to the actual situation. Need to adjust the position of the second light source, so that the second light source can be set far away from the first light source, not close to the first light source, avoiding the situation of setting a large number of components near the first light source, so as to optimize the internal structure design of the sky light, Reduce the difficulty of developing and designing the internal layout of the sky light, and at the same time provide convenience for the internal structure layout of the sky light.

Description of drawings

Fig. 1 is a schematic diagram of the optical path structure of the sky lamp provided by an embodiment of the present application when the first light source emits light and the second light source does not emit light;

Fig. 2 is a schematic diagram of the optical path structure of the sky lamp provided by an embodiment of the present application when the first light source does not emit light and the second light source emits light;

Fig. 3 is a schematic diagram of the optical path structure of the sky lamp provided by an embodiment of the present application when the first light source and the second light source emit light at the same time;

Fig. 4 is a schematic structural view of the light-emitting surface of the first light source of the sky lamp provided by an embodiment of the present application;

Fig. 5 is a schematic diagram of the relationship between the window plate of the sky lamp provided by an embodiment of the present application and the light spot directed to the window plate;

Fig. 6 is a schematic diagram of the optical path structure of the sky lamp provided by another embodiment of the present application when the first light source emits light and the second light source does not emit light;

Fig. 7 is a schematic diagram of the optical path structure of the sky lamp provided by another embodiment of the present application when the first light source does not emit light and the second light source emits light;

Fig. 8 is a schematic diagram of the light path structure of the sky lamp provided by another embodiment of the present application when the first light source and the second light source emit light at the same time;

Fig. 9 is a schematic diagram of the optical path structure of the sky lamp provided by another embodiment of the present application when the first light source emits light and the second light source does not emit light;

Fig. 10 is a schematic diagram of the optical path structure of the sky lamp provided by still another embodiment of the present application when the first light source does not emit light and the second light source emits light.

Reference signs:

10. First light source; 11. First light; 12. High color temperature light source; 13. Low color temperature light source; 20. Uniform light element; 30. Concentrating element; 40. Second light source; 41. Second light; Window plate; 60, first reflective element; 61, second reflective element; 62, third reflective element; 70, drive element; 80, pattern plate.

Embodiments of the present invention

In order to make the purposes, 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 in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

In the description of the embodiments of the present application, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it may be directly connected, or indirectly connected through an intermediary, and may be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of the present application, it should be understood that the orientation or positional relationship (if any) indicated by the terms "inner", "outer", "upper", "bottom", "front", and "rear" are Based on the orientation or positional relationship shown in Figure 1, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot understood as a limitation of the application.

The sky lamp provided by the embodiment of the present application can make the light-emitting surface of the sky lamp present a moon pattern by adding a second light source, which avoids the situation where a large number of components are placed near the first light source, reduces the difficulty of structural design, and optimizes the structure of the sky lamp. Internal structure design.

The sky light provided by the embodiments of the present application can be applied to indoor lighting places such as office buildings, hospitals, stations or airports, but is not limited thereto. Fig. 1 is a schematic diagram of the optical path structure of the sky lamp provided by an embodiment of the present application when the first light source emits light and the second light source does not emit light. Fig. 2 is a schematic diagram of the optical path structure of the sky lamp provided by an embodiment of the present application when the first light source does not emit light and the second light source emits light. Fig. 3 is a schematic diagram of the optical path structure of the sky light provided by an embodiment of the present application when the first light source and the second light source emit light simultaneously. Fig. 4 is a schematic structural view of the light-emitting surface of the first light source of the sky light provided by an embodiment of the present application. Fig. 5 is a schematic diagram of the relationship between the window plate of the sky light provided by an embodiment of the present application and the light spots incident on the window plate. As shown in FIGS. 1-5 , the sky light provided by the embodiment of the present application includes a first light source 10 , a uniform light element 20 , a light concentrating element 30 , a second light source 40 and a window plate 50 .

Wherein, the first light source 10 is used to emit the first light ray 11 to the surrounding space, and the uniform light element 20 is arranged on the light emitting side of the first light source 10, and is used for receiving the first light ray 11 emitted by the first light source 10, and uniform light entering The first light 11 of the element 20 is uniformly treated so that the light color of the first light 11 is evenly distributed without chromatic aberration. The light concentrating element 30 is arranged on the light emitting side of the light uniform element 20, and is used for receiving the first light 11 emitted from the light uniform element 20, and converging the first light 11 entering the light concentrating element 30, reducing the light emitted from the light uniform element 20. The light exit angle of the light beam formed by the first light 11. That is, the uniform light element 20 and the light concentrating element 30 are sequentially arranged on the optical path of the first light source 10, so that the first light 11 emitted from the first light source 10 is processed by the light uniform element 20 and the light concentrating element 30 and then enters the window plate. 50.

The second light source 40 is a point light source for emitting the second light 41 to the surrounding space. Here, the first light source 10 and the second light source 40 are disposed separately, and will not affect each other's light paths. The window plate 50 is located in the outgoing direction of the first light 11 emitted from the light concentrating element 30 and the second light 41 emitted from the second light source 40 , and is used to control the first light 11 or the second light 41 entering the window plate 50 for scattering and transmission.

As shown in Figure 1, when the first light source 10 emits light and the second light source 40 does not emit light, the window plate 50 scatters and transmits the first light 11 emitted from the light concentrating element 30, so that the light emitting surface of the sky light is blue. sky scene.

Specifically, the window plate 50 is a Rayleigh scattering plate, and the inside of the Rayleigh scattering plate contains many scattered scattering particles whose size is smaller than one-tenth of the incident wavelength. The blue light emitting surface of the sky light is mainly simulated by the Rayleigh scattering phenomenon. Rayleigh scattering, also known as "molecular scattering", is an optical phenomenon. When the particle size is much smaller than the wavelength of the incident light (less than one tenth of the wavelength), the scattered light intensity in all directions is inconsistent. The frequency of the incident wavelength is proportional to the fourth power, resulting in more blue light scattering, so the sky appears blue.

That is to say, when light passes through the window plate 50, the scattering particles inside the window plate 50 will Rayleigh scatter the short-wavelength light (blue light) in the light, and the scattered short-wavelength light (blue light) will cover the entire sky light. The light-emitting surface makes the light-emitting surface of the sky light show a blue sky scene, and the long-wavelength light in the light will pass through the window plate 50, forming an illumination spot similar to sunlight on the wall or floor, so that the sky light can simulate Sun light and blue sky scene.

As shown in FIG. 2, when the first light source 10 is not emitting light and the second light source 40 is emitting light, the window plate 50 scatters and transmits the second light 41 emitted by the second light source 40, so that the light emitting surface of the sky lamp has a moon pattern. . Because the second light source 40 is a point light source, people can see a circular light source when looking at the light-emitting surface of the sky lamp. In addition, because the power of the second light source 40 is set low, the scattered light in the second light 41 The short-wavelength light intensity and brightness are low, and it is not easy to see blue on the light-emitting surface of the sky light, that is, the light-emitting surface of the sky light tends to be black except for the light source. At this time, the light-emitting surface of the sky light can be seen The circular light source on the screen is like seeing the moon.

According to the sky light provided by the embodiment of the present application, during the daytime, people can turn on the first light source 10 to make the first light source 10 emit light and the second light source 40 not emit light. The element 20 and the light concentrating element 30 are subjected to homogenization and light concentrating treatment and then enter the window plate 50, and the short-wavelength light in the first light 11 incident on the window plate 50 will undergo Rayleigh scattering with the scattering particles inside the window plate 50, Make the light-emitting surface of the sky light show a blue sky scene. When night falls, people can turn off the first light source 10 and turn on the second light source 40, so that the second light source 40 emits light and the first light source 10 does not emit light. Seeing a light source similar to the shape of a full moon on the light-emitting surface can make the light-emitting surface of the sky light have a moon pattern. By controlling the first light source 10 to emit light or the second light source 40 to emit light, the sky lamp can not only simulate the blue sky scene, but also simulate the moon scene at night, so that the sky lamp can have a more realistic sense of being connected to the outside, and effectively solve the problem of Foggy, rainy weather people can not go outdoors feel oppressed.

The sky lamp provided by the embodiment of the present application has the advantages of simple structure and easy implementation. By adding the second light source 40 to make the light emitting surface of the sky lamp have a moon pattern, the internal structure design of the sky lamp can be made more flexible, that is, according to Adjust the position of the second light source 40 according to actual needs, so that the second light source 40 can be set far away from the first light source 10, and does not have to be close to the first light source 10, avoiding the situation of setting a large number of components near the first light source 10, so that the sky can be optimized The internal structure design of the lamp reduces the difficulty of developing and designing the internal layout of the sky lamp, and at the same time provides convenience for the internal structure layout of the sky lamp.

As shown in FIG. 1 , in the embodiment of the present application, the first light source 10 is also a point light source. When the first light source 10 emits light and the second light source 40 does not emit light, the window plate 50 is opposite to the first light source emitted from the light concentrating element 30. The light 11 is scattered and transmitted, so that the light emitting surface of the sky light has a blue sky scene and a sun pattern. Here, the sun pattern can be understood as the sun image that the indoor personnel can see on the light-emitting surface of the sky light with the outline of the sun and glow like the sun.

By setting the first light source 10 as a point light source, the indoor personnel can not only see the simulated blue sky but also the simulated sun when looking at the sky lamp, that is, the light-emitting surface of the sky lamp can be presented with the existing blue color. The sky also has the visual effect of the sun pattern, which enhances the realism of the sky light, so that people in indoor activities can experience the feeling of the connection between indoor and outdoor spaces, effectively enhance the sense of extension of the indoor space, and approximate the scene of sunlight entering the room from the window, which can Let the indoor staff feel happy and cheerful.

As shown in FIG. 3 , in the embodiment of the present application, when the first light source 10 and the second light source 40 emit light at the same time, the window plate 50 reacts to the first light 11 emitted from the light concentrating element 30 and the light emitted from the second light source 40 . The second light 41 is scattered and transmitted, so that the light emitting surface of the sky light has a blue sky scene and a sun pattern. That is, by adding the second light source 40, the light-emitting surface of the sky light has a sun pattern, that is to say, the light-emitting surface of the sky light can have a sun pattern and a moon pattern by adding the second light source 40, so that the sky light can be like Like a real skylight, you can see the sun hanging in the blue sky during the day and the moon hanging in the night sky at night, which makes the sky light more realistic and connected with the outside, and makes people feel better.

Optionally, in the embodiment of the present application, the second light source 40 is arranged on the extension surface of the installation surface of the first light source 10. Through the above arrangement, it is beneficial to the internal structural layout of the sky light, ensuring that people can The glowing second light source 40 is seen.

Through the above two methods, the light-emitting surface of the sky lamp can have the effect of blue sky and have a sun pattern at the same time. When the first light source 10 is a point light source, the effect of having a sun pattern can be realized by the first light source 10 itself, that is, people When in use, only need to turn on the first light source 10 to make the first light source 10 emit light and the second light source 40 not emit light, so that the light emitting surface of the sky light can present a blue sky effect and have a sun pattern. When the first light source 10 is not a point light source, the effect of the sun pattern is realized by adding the second light source 40, that is, when people use it, they need to turn on the first light source 10 and the second light source 40 at the same time, so that the first light source 10 Only by emitting light simultaneously with the second light source 40 can the light emitting surface of the sky light present a blue sky effect and have a sun pattern.

It is worth mentioning that the sky light provided by the embodiment of the present application also includes components such as a housing (not shown in the figure), a control unit (not shown in the figure), a power supply unit (not shown in the figure), and the first The light source 10, the uniform light element 20, the light concentrating element 30 and the second light source 40 are all arranged in the casing, and the control device includes a main control board built in the casing and a control terminal (such as a remote control or a mobile terminals, etc.), the power supply device can provide electric energy for the first light source 10, the second light source 40, and the control device. People can turn on or off the first light source 10/second light source 40 through the control device, so that the light emitting surface of the sky light has a sun pattern or a moon pattern.

As shown in Figures 1-3, in the embodiment of the present application, the sky lamp further includes a first reflective element 60, which is used to reflect the first light 11 emitted from the light-collecting element 30 to the window plate 50, Or for reflecting the second light 41 emitted from the second light source 40 to the window plate 50 . By arranging the first reflective element 60, the direction of the first light 11 emitted by the light concentrating element 30 and the direction of the second light 41 emitted by the second light source 40 can be turned, so that the emitted first light 11 and the second light 41 are at a specific angle. Entering the window plate 50 is beneficial to reduce the size of the sky light, so that the staff can install the sky light conveniently and quickly.

Further, as shown in FIGS. 1-3, in the embodiment of the present application, a drive element 70 is provided on the first reflective element 60, and the drive element 70 is used to drive the first reflective element 60 to rotate to change the pattern of the moon in the sky. The position on the light emitting surface of the lamp. By setting the driving element 70, the indoor personnel can rotate the first reflective element 60 at any time to adjust the position of the moon pattern on the light-emitting surface of the sky lamp, so that the position of the moon pattern in the sky can be changed, thereby making the sky lamp more realistic. Improve the user experience of indoor personnel. Of course, the position of the sun pattern on the light-emitting surface of the sky light can also be changed by rotating the first reflective element 60 here.

The embodiment of the present application does not make any restrictions on the specific form of the driving element 70, as long as it can drive the first reflective element 60 to rotate. For example, the driving element 70 can be a driving device that can realize rotation such as a motor or a motor. All forms should be included in the scope of protection of this application.

Specifically, as shown in FIGS. 1-3 , in the embodiment of the present application, a second reflective element is also provided between the light concentrating element 30 and the first reflective element 60 and between the second light source 40 and the first reflective element 60 61 , the second reflective element 61 is used to reflect the first light 11 emitted by the light concentrating element 30 to the first reflective element 60 , or to reflect the second light 41 emitted by the second light source 40 to the first reflective element 60 . By adding the second reflective element 61, the light paths of the first light 11 and the second light 41 can be bent twice, so that the light paths can be further compressed to further reduce the size of the sky light.

As shown in Figures 1-3, in the embodiment of the present application, the sky lamp also includes a plurality of pattern plates 80, and each pattern plate 80 is provided with different moon phase figures (such as gibbous moon, crescent moon, first quarter moon or last quarter moon). moon, etc.), each pattern plate 80 can be replaced between the second light source 40 and the second reflective element 61, so as to present different moon patterns on the light-emitting surface of the sky lamp. By setting the pattern plate 80, the shape of the moon pattern can be changed with the change of the moon phase, so that indoor personnel can better experience the feeling that the indoor and outdoor spaces are connected, and enhance the indoor personnel's experience of the sky light.

At this time, the power of the second light source 40 is lower than that of the first light source 10 , so that the illumination effect of the second light source 40 is different from that of the first light source 10 .

Optionally, in the embodiment of the present application, the power of the second light source 40 ranges from 3W to 15W. That is to say, the power of the second light source 40 can be any value between 3W and 15W. For example, the power of the second light source 40 can be set to 3W, 10W or 15W, so that people can see the light source similar to the full moon while avoiding After the second light 41 enters the window plate 50, the light emitting surface of the sky light presents a blue sky scene.

Specifically, the graphics on the pattern plate 80 are light-transmitting areas, and the non-graphic areas are light-shielding areas. A plurality of pattern plates 80 are movably installed outside the optical path of the second light source 40 and the third reflective element 62. When people need to change the moon pattern on the sky lamp, the pattern plates 80 of different shapes can be moved by driving devices such as motors. Between the light path between the second light source 40 and the third reflective element 62 , the light emitting surface of the sky light presents a moon pattern corresponding to the pattern on the pattern plate 80 .

For example, when the moon in the outside world is a full moon, people only need to turn on the second light source 40 so that the first light source 10 does not emit light and the second light source 40 emits light. Since the second light source 40 is a point light source, the light emitting surface of the sky lamp appears Out of a circle, that is, a moon pattern similar to the shape of a full moon, and when the external moon is in the shape of the last quarter moon, the indoor personnel can control the driving device such as a motor through the control device to move the pattern plate 80 similar to the shape of the last quarter moon to the second light source 40 and the light path of the third reflective element 62, after the second light 41 emitted from the second light source 40 passes through the pattern plate 80 similar in shape to the last quarter moon, the light emitting surface of the sky lamp presents a shape similar to the last quarter moon. moon pattern.

In the embodiment of the present application, the first light source 10 and the second light source 40 include any one of high color temperature white light spectrum, low color temperature white light spectrum, full sunlight spectrum, infrared band and ultraviolet band. Color temperature is a unit of measurement that expresses the color components contained in light. During the day, the color temperature of sunlight is constantly changing. For example, the color temperature before sunrise is blue, the color temperature after sunrise is orange, the color temperature at noon is white, and the color temperature at night is yellow. Through the above settings, the sky light can better simulate the lighting effect of sunlight, make the sky light more realistic, and improve the experience of indoor personnel. In addition, the color temperature of the first light source 10 and the second light source 40 should be selected according to the requirements of the application environment to ensure human health and safe wavelength bands.

Optionally, in the embodiment of the present application, the first light source 10 and the second light source 40 are LED light sources. The LED light source has a simple structure and can make the sky light achieve better lighting effect.

Optionally, in the embodiment of this application, the LED light source can be COB (Chip on board, chip-on-board package) or CSP (Chip scale package, chip size package) packaging method can make the LED light source smaller and thinner.

As shown in Figure 4, in the embodiment of the present application, the first light source 10 is an LED light source array, in which the high color temperature light source 12 (the square part filled with stripes in Figure 4) and the low color temperature light source 13 (the blank square in Figure 4 Partial) arrays are arranged alternately, at this time, the light-emitting surface of the first light source 10 is rectangular, and the length of the diagonal line of the light-emitting surface of the first light source 10 is D.

As shown in Figures 1-3, in the embodiment of the present application, the dodging element 20 is a dodging rod, and the first light 11 emitted by the first light source 10 undergoes at least three total reflections in the dodging rod, so that The first light 11 emerging from the inside can be sufficiently mixed to form an illumination spot with uniform light color.

As shown in Figures 1-4, in the embodiment of the present application, the light-emitting surface of the first light source 10 is rectangular, the uniform light element 20 is a cuboid structure, and the value range of the length L of the uniform light element 20 is: 3D≤L≤ 5D, wherein, D is the diagonal length of the light emitting surface of the first light source 10 . That is to say, the length L of the homogenizing element 20 is at least three times the length D of the diagonal line of the light emitting surface of the first light source 10 , and at most five times the length of the diagonal line D of the light emitting surface of the first light source 10 . By setting the length L of the homogenizing element 20 within this range, the first light 11 entering the homogenizing element 20 can be totally reflected at least three times in the homogenizing element 20 while reducing the size of the homogenizing element 20, so that Form a light spot with uniform light color.

Specifically, in the embodiment of the present application, the dodging rod has two ends distributed along the axial direction, wherein the end face of the end close to the first light source 10 is the light incident surface of the dodging rod, and the end face of the end far away from the first light source 10 is the dodging face. On the light emitting surface of the rod, the first light 11 emitted by the first light source 10 will enter the light uniform rod from the light incident surface of the light uniform rod, and will be completely reflected in the light uniform rod for many times to achieve the optical effect of uniform light color, and then from the uniform light The stick comes out of the shiny side.

Optionally, in the embodiment of the present application, the homogenization rod can be a hollow homogenization rod formed by splicing four planar high-reflection mirrors, or a solid homogenization rod composed of solid high-temperature-resistant optical glass.

Optionally, in the embodiment of the present application, the material of the dodging rod is high temperature resistant optical plastic, optical glass or metal with reflective properties. The optical plastic can be PC (Polycarbonate, polycarbonate) or PMMA (Polymethyl methacrylate, polymethyl methacrylate), etc., the optical glass can be quartz glass or K9 glass, etc., and the metal with reflective properties can be aluminum.

As shown in Figures 1-3, in the embodiment of the present application, the condensing element 30 includes a plurality of condensing lenses arranged in parallel at intervals along the optical path. Between 45 degrees. By controlling the light emission angle of the light beam formed by the first light 11 emitted from the light concentrating element 30 to be between 5 degrees and 45 degrees, it is possible to ensure that the first light 11 emitted from the light concentrating element 30 covers the window while reducing light loss. plate 50.

Specifically, in the embodiment of the present application, the condensing lenses are all plano-convex lenses, and the condensing element 30 includes three plano-convex lenses arranged in parallel at intervals, and the plane of the plano-convex lens closest to the uniform light element 20 is the entrance As for the light surface, the convex arc surface of the plano-convex lens farthest from the uniform light element 20 is the light exit surface of the light concentrating element 30 . The light concentrating element 30 can converge the large-angle light emitted by the uniform light element 20, so as to reduce the light angle of the light beam formed by the first light 11 emitted from the uniform light element 20, and make the volume of the second reflective element 61 matched with it It can be set smaller, which is conducive to further miniaturization of the size of the sky light.

Optionally, in the embodiment of the present application, the light concentrating element 30 is made of high temperature resistant optical plastic material or optical glass material.

As shown in FIG. 5 , in the embodiment of the present application, the light spot of the light collecting element 30 directed to the window plate 50 completely covers the window plate 50, and the window plate 50 is rectangular, and the length L1 and width W1 of the light spot are greater than that of the window plate 50. Length L2 and width W2. Through the above settings, the light spot directed to the window plate 50 can completely cover the window plate 50, so that the entire light emitting surface of the sky light can present a blue sky scene, making the sky light more realistic and improving people's use experience.

Specifically, the window panels 50 are generally rectangular. Of course, in other embodiments, according to actual lighting requirements or interior design requirements, the window panels 50 can also be designed in other shapes, but the rectangle can obtain a larger light emitting surface. In addition, the plurality of nano-scattering particles inside the window plate 50 are uniformly distributed, which can enhance the scattering effect on blue light.

Preferably, in the embodiment of the present application, the particle size range of the nano-scattering particles is 10nm-500nm, and setting the particle size within the range of 10nm-500nm can make the light-emitting surface 51 of the window plate 50 present a better blue sky effect.

Fig. 6 is a schematic diagram of the optical path structure of the sky lamp provided by another embodiment of the present application when the first light source emits light and the second light source does not emit light. Fig. 7 is a schematic diagram of the optical path structure of the sky lamp provided by another embodiment of the present application when the first light source does not emit light and the second light source emits light. Fig. 8 is a schematic diagram of the optical path structure of the sky light provided by another embodiment of the present application when the first light source and the second light source emit light at the same time.

As shown in Figures 6-8, compared to the aforementioned embodiments shown in Figures 1-5, in this embodiment, the sky light only includes the first reflective element 60, and only setting the first reflective element 60 can reduce light loss and improve The luminous efficiency of light.

Optionally, as shown in FIGS. 6-8 , the pattern plate 80 can be replaceably applied between the second light source 40 and the first reflective element 60 to present different moon patterns on the light-emitting surface of the sky light.

Fig. 9 is a schematic diagram of the optical path structure of the sky lamp provided by still another embodiment of the present application when the first light source emits light and the second light source does not emit light. Fig. 10 is a schematic diagram of the optical path structure of the sky lamp provided by still another embodiment of the present application when the first light source does not emit light and the second light source emits light.

As shown in FIGS. 9-10 , compared to the embodiment shown in FIGS. 1-8 , in this embodiment, the sky light further includes a third reflective element arranged between the second light source 40 and the first reflective element 60 62. At this time, the second reflective element 61 is only used to reflect the first light 11 emitted from the light concentrating element 30 to the first reflective element 60, and the second light 41 emitted from the second light source 40 passes through the third reflective element 62 reflected to the first reflective element 60. By adding the third reflective element 62 to separately reflect the second light 41 emitted from the second light source 40 , the volume of the second reflective element 61 can be set smaller, which is beneficial to further miniaturization of the sky light.

Optionally, as shown in FIGS. 9-10 , the pattern plate 80 can be replaceably applied between the second light source 40 and the third reflective element 62 to present different moon patterns on the light-emitting surface of the sky light.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (16)

A sky light, characterized in that it comprises: The first light source (10), configured to emit the first light (11); A uniform light element (20), arranged on the light exit side of the first light source (10), for performing uniform light treatment on the first light (11) entering the light uniform element (20); A light concentrating element (30), arranged on the light exit side of the light uniform element (20), for converging the first light (11) entering the light concentrating element (30) from the light uniform element (20) ); The second light source (40), which is a point light source, is used to emit the second light (41); The window plate (50), used for controlling the first light (11) emitted from the light-collecting element (30) when the first light source (10) emits light and the second light source (40) does not emit light. ) for scattering and transmission, so that the light emitting surface of the sky light shows a blue sky scene; when the first light source (10) does not emit light and the second light source (40) emits light, it is used to The second light (41) emitted by the second light source (40) is scattered and transmitted, so that the light emitting surface of the sky lamp has a moon pattern. The sky lamp according to claim 1, characterized in that the first light source (10) is a point light source, and when the first light source (10) emits light and the second light source (40) does not emit light, the The window plate (50) scatters and transmits the first light (11) emitted from the light-concentrating element (30), so that the light-emitting surface of the sky light presents a blue sky scene with the sun pattern. The sky lamp according to claim 1, characterized in that, when the first light source (10) and the second light source (40) emit light at the same time, the pair of window plates (50) from the light-collecting element (30) Scattering and transmitting the first light (11) emitted from the second light source (40) and the second light (41) emitted from the second light source (40), so that the light emitting surface of the sky light appears Blue sky scene with sun pattern. The sky lamp according to claim 3, characterized in that, the light-emitting surface of the first light source (10) is rectangular, the uniform light element (20) is a cuboid structure, and the length of the uniform light element (20) is The value range of L is: 3D≤L≤5D, wherein D is the diagonal length of the light emitting surface of the first light source (10). The sky lamp according to any one of claims 1-4, characterized in that, the sky lamp further comprises a first reflective element (60), and the first reflective element (60) is used to The first light (11) emitted by the light element (30) is reflected to the window plate (50), or used to reflect the second light (41) emitted from the second light source (40) to The window panel (50). The sky lamp according to claim 5, characterized in that a driving element (70) is provided on the first reflecting element (60), and the driving element (70) is used to drive the first reflecting element (60) ) to change the position of the moon pattern on the light-emitting surface of the sky light. The sky lamp according to claim 5, characterized in that, between the light concentrating element (30) and the first reflecting element (60) and between the second light source (40) and the first reflecting element A second reflective element (61) is provided between (60), and the second reflective element (61) is used to reflect the first light (11) emitted from the light concentrating element (30) to the The first reflective element (60), or used to reflect the second light (41) emitted from the second light source (40) to the first reflective element (60). The sky lamp according to claim 7, characterized in that, the sky lamp further comprises a plurality of pattern plates (80), each of the pattern plates (80) is provided with different moon phase figures, each of the A pattern plate (80) is replaceably applied between the second light source (40) and the second reflective element (61), so as to present different moon patterns on the light-emitting surface of the sky light. The sky lamp according to any one of claims 1-4, 6-8, characterized in that the condensing element (30) includes a plurality of condensing lenses arranged in parallel at intervals along the optical path, and the condensing lenses It is used to control the light emitting angle of the first light source (10) between 5 degrees and 45 degrees. The sky lamp according to any one of claims 1-4, 6-8, characterized in that, the light uniform element (20) is a light uniform rod, and the first light emitted by the first light source (10) A light (11) undergoes at least three total reflections in the uniform rod. The sky lamp according to claim 10, characterized in that, the light dodging rod is a solid dodging rod or a hollow dodging rod. The sky lamp according to any one of claims 1-4, 6-8, characterized in that the window plate (50) is a Rayleigh scattering plate, and a plurality of nanometers are evenly distributed in the Rayleigh scattering plate. Scattering particles, the particle size range of the nano-scattering particles is 10nm-500nm. The sky light according to any one of Claim 3, characterized in that, the second light source (40) is arranged on an extension surface of the installation surface of the first light source (10). The sky light according to any one of claims 1-4, 6-8, characterized in that, the power of the second light source (40) is smaller than the power of the first light source (10). The sky lamp according to any one of claims 1-4, 6-8, characterized in that the power range of the second light source (40) is 3W-15W. The sky lamp according to any one of claims 1-4, 6-8, characterized in that, the first light source (10) and the second light source (40) include high color temperature white light spectrum, low color temperature white light Any one of spectrum, full spectrum of sunlight, infrared band and ultraviolet band.