CN217423130U - Sky lamp - Google Patents

Abstract

The application provides a sky light, which comprises a first light source, a second light source and a third light source, wherein the first light source is used for emitting first light; the light homogenizing element is arranged on the light emitting side of the first light source and used for homogenizing the first light rays entering the light homogenizing element; the light condensing element is arranged on the light emitting side of the light homogenizing element and is used for condensing the first light rays entering the light condensing element from the light homogenizing element; the second light source is a point light source and is used for emitting second light; the window plate is used for scattering and transmitting the first light emitted from the light-condensing element when the first light source emits light and the second light source does not emit light, so that the light-emitting surface of the skylight is in a blue sky scene; and when the first light source does not emit light and the second light source emits light, the LED is used for scattering and transmitting the second light emitted from the second light source so as to enable the light emitting surface of the sky lamp to have a moon pattern. The application provides a sky lamp can optimize the inner structure design of sky lamp, reduces the degree of difficulty of the inside overall arrangement development design of sky lamp.

Description

Sky lamp

Technical Field

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

Background

The skylight is a novel lamp, can simulate sunlight and blue sky, makes people just as if real putting under the external sky, when the skylight was installed indoor, just is equivalent to having installed a skylight, can provide a more comfortable luminous environment for indoor people, makes people's mood joyful.

In order to make the sky lamp have a sense of reality of communicating with the outdoor, the existing sky lamp can simulate the sun light and the blue sky and can also simulate the moon. In the related art, the skylight achieves the effect of simulating the moon by adding the movable pattern plate near the light source, however, the realization mode can cause too many components arranged near the light source, so that the structural design and the layout of the components near the light source are limited, and the structural design difficulty of the skylight is increased.

SUMMERY OF THE UTILITY MODEL

The application provides a sky lamp can optimize the inner structure design of sky lamp, reduces the degree of difficulty of the inside overall arrangement development design of sky lamp.

In order to solve the above problems, the embodiment of the present application provides a technical solution that: a sky light comprises a first light source for emitting a first light; the light homogenizing element is arranged on the light emitting side of the first light source and used for homogenizing the first light rays entering the light homogenizing element; the light condensing element is arranged on the light emitting side of the light homogenizing element and is used for condensing the first light rays entering the light condensing element from the light homogenizing element; the second light source is a point light source and is used for emitting second light; a window plate for scattering and transmitting the first light emitted from the condensing element when the first light source emits light and the second light source does not emit light, so that a light emitting surface of the sky lamp appears as a blue sky scene; and when the first light source does not emit light and the second light source emits light, the first light source is used for scattering and transmitting second light emitted from the second light source so that the light emitting surface of the sky light has a moon pattern.

In one possible design, the first light source is a point light source, and the window plate scatters and transmits the first light emitted from the condensing element when the first light source emits light and the second light source does not emit light, so that the light emitting surface of the sky lamp is a blue sky scene and has a sun pattern.

In one possible design, when the first light source and the second light source emit light simultaneously, the window plate scatters and transmits the first light emitted from the condensing element and the second light emitted from the second light source, so that the light emitting surface of the sky lamp is a blue sky scene and has a sun pattern.

In a possible design, the light emitting surface of the first light source is rectangular, the light homogenizing element is of a cuboid structure, and the value range of the length L of the light homogenizing element is as follows: l is not less than 3D and not more than 5D, wherein D is the diagonal length of the luminous surface of the first light source.

In one possible design, the skylight further includes a first reflective element for reflecting the first rays exiting from the light-concentrating element to the window plate or for reflecting the second rays exiting from the second light source to the window plate.

In one possible design, a driving element is disposed on the first reflective element, and the driving element is configured to drive the first reflective element to rotate so as to change a position of the moon pattern on the light-emitting surface of the sky light.

In a possible design, a second reflecting element is arranged between the light-gathering element and the first reflecting element and between the second light source and the first reflecting element, and the second reflecting element is used for reflecting the first light rays emitted from the light-gathering element to the first reflecting element or reflecting the second light rays emitted from the second light source to the first reflecting element.

In one possible design, the skylight further includes a plurality of pattern boards, each of the pattern boards having a different moon phase pattern thereon, each of the pattern boards being interchangeably applied between the second light source and the second reflective element to present a different moon pattern on the light-emitting surface of the skylight.

In one possible design, the light-condensing element includes a plurality of light-condensing lenses arranged in parallel at intervals along the optical path, and the light-condensing lenses are used for controlling the light-emitting angle of the first light source to be between 5 degrees and 45 degrees.

In a possible design, the light uniformizing element is a light uniformizing rod, and the first light emitted by the first light source is totally reflected at least three times in the light uniformizing rod.

According to the sky lamp that this application embodiment provided, during the daytime, people can open first light source, make first light source luminous and second light source not luminous, and the first light of first light source outgoing carries out dodging spotlight processing after passing through dodging component and spotlight element in proper order and incides the window board, and the light of the short wavelength in the first light that incides into the window board can take place the rayleigh scattering with the inside scattering particle of window board, makes the light-emitting face of sky lamp appear blue sky scene. When the night screen falls down, 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 the moment, because the second light source is a point light source, people can see the light emitting source similar to a full moon shape on the light emitting surface of the sky lamp, and the light emitting surface of the sky lamp can have moon patterns. The sky lamp can simulate blue sky scenes and moon scenes at night by controlling the first light source to emit light or the second light source to emit light, so that the sky lamp has more sense of reality with outdoor communication, and the problem that people cannot feel suffocating in outdoor activities in haze and rainy days is effectively solved.

The sky lamp that this application embodiment provided has simple structure, advantages such as easy implementation, make the play plain noodles of sky lamp have moon pattern through increasing the second light source, can make the inner structure design of sky lamp become more nimble, can adjust the position of second light source according to actual demand, make the second light source can keep away from first light source setting, needn't be adjacent first light source, the condition of setting up a large amount of components and parts near having avoided first light source, thereby can optimize the inner structure design of sky lamp, reduce the degree of difficulty of the inner layout development design of sky lamp, also can facilitate for the inner structure layout of sky lamp simultaneously.

Drawings

Fig. 1 is a schematic view of an optical path structure of a skylight provided in an embodiment of the present application when a first light source emits light and a second light source does not emit light;

fig. 2 is a schematic view of an optical path structure of a skylight when a first light source does not emit light and a second light source emits light according to an embodiment of the present disclosure;

fig. 3 is a schematic view of an optical path structure of a sky light provided in an embodiment of the present application when a first light source and a second light source emit light simultaneously;

fig. 4 is a schematic structural diagram of a light emitting surface of a first light source of a sky light according to an embodiment of the present application;

FIG. 5 is a schematic view of a skylight window plate in relation to a spot of light directed toward the window plate according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of an optical path structure of a skylight with a first light source emitting light and a second light source not emitting light according to another embodiment of the present disclosure;

FIG. 7 is a schematic view of an optical path structure of a skylight when a first light source does not emit light and a second light source emits light according to another embodiment of the present disclosure;

fig. 8 is a schematic view of an optical path structure of a skylight when a first light source and a second light source emit light simultaneously according to another embodiment of the present disclosure;

FIG. 9 is a schematic view of an optical path structure of a skylight with a first light source emitting light and a second light source not emitting light according to yet another embodiment of the present disclosure;

fig. 10 is a schematic view of an optical path structure of a skylight according to yet another embodiment of the present application when a first light source does not emit light and a second light source emits light.

Reference numerals:

10. a first light source; 11. a first light ray; 12. a high color temperature light source; 13. a low color temperature light source; 20. a light uniformizing element; 30. a light condensing element; 40. a second light source; 41. a second light ray; 50. a window plate; 60. a first reflective element; 61. a second reflective element; 62. a third reflective element; 70. a drive element; 80. a pattern plate.

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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited 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, when used in the orientation or positional relationship indicated in FIG. 1, are used solely for the purpose of facilitating a description of the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

The sky lamp that this application embodiment provided makes the play plain noodles of sky lamp can present moon pattern through increasing the second light source, has avoided near the condition that sets up a large amount of components and parts of first light source, can reduce the structural design degree of difficulty to optimize the inner structure design of sky lamp.

The sky light provided by the embodiment of the application can be applied to indoor lighting places such as office buildings, hospitals, stations or airports, but is not limited to the indoor lighting places. Fig. 1 is a schematic view of an optical path structure of a skylight when a first light source emits light and a second light source does not emit light according to an embodiment of the present disclosure. Fig. 2 is a schematic view of an optical path structure of a skylight when a first light source does not emit light and a second light source emits light according to an embodiment of the present disclosure. Fig. 3 is a schematic view of an optical path structure of a sky light provided by an embodiment of the present application when a first light source and a second light source emit light simultaneously. Fig. 4 is a schematic structural diagram of a light emitting surface of a first light source of a sky light according to an embodiment of the present application. Fig. 5 is a schematic view of a window plate of a skylight and a light spot directed to the window plate according to an embodiment of the present disclosure. As shown in fig. 1 to 5, the sky light provided by the embodiments of the present application includes a first light source 10, a light unifying element 20, a light condensing element 30, a second light source 40, and a window plate 50.

The first light source 10 is configured to emit a first light 11 to a surrounding space, and the light uniformizing element 20 is disposed on a light emitting side of the first light source 10, and configured to receive the first light 11 emitted from the first light source 10 and perform light uniformizing processing on the first light 11 entering the light uniformizing element 20, so that light color of the first light 11 is uniformly distributed without color difference. The light condensing element 30 is disposed on the light emitting side of the light homogenizing element 20, and is configured to receive the first light 11 emitted from the light homogenizing element 20, condense the first light 11 entering the light condensing element 30, and reduce the light emitting angle of the light beam formed by the first light 11 emitted from the light homogenizing element 20. That is, the dodging element 20 and the condensing element 30 are sequentially disposed 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 dodging element 20 and the condensing element 30 and then enters the window plate 50.

The second light source 40 is a point light source for emitting a second light 41 to the surrounding space. Here, the first light source 10 and the second light source 40 are separately provided, and do not affect the optical paths of each other. The window plate 50 is positioned in the emission direction of the first light rays 11 emitted from the light condensing element 30 and the second light rays 41 emitted from the second light source 40, and serves to scatter and transmit the first light rays 11 or the second light rays 41 incident to the window plate 50.

As shown in fig. 1, when the first light source 10 emits light and the second light source 40 does not emit light, the window plate 50 diffuses and transmits the first light 11 emitted from the condensing element 30 so that the light emitting surface of the skylight appears a blue sky scene.

Specifically, the window plate 50 is a rayleigh scattering plate containing a large number of scattering particles dispersed therein and having a particle size smaller than one tenth of the incident wavelength. The light emitting surface of the skylight is blue, and the blue light emitting surface is mainly realized through the simulation of a Rayleigh scattering phenomenon. Rayleigh scattering, also known as "molecular scattering," is an optical phenomenon in which when the particle size is much smaller than the wavelength of the incident light (less than one tenth of the wavelength), the intensity of the scattered light in all directions is not uniform, and the intensity is proportional to the fourth power of the frequency of the incident wavelength, causing more light scattering in the blue, and thus the sky appears a blue scene.

That is to say, when light passes through the window plate 50, the scattering particles inside the window plate 50 perform rayleigh scattering on the light (blue light) with short wavelength in the light, the scattered light (blue light) with short wavelength is distributed over the whole light emitting surface of the skylight, so that the light emitting surface of the skylight is blue sky scene, the light with long wavelength in the light penetrates through the window plate 50, and illumination spots similar to sunlight irradiation are formed on the wall or the floor, so that the skylight can simulate the sunlight and the blue sky scene.

As shown in fig. 2, when the first light source 10 does not emit light and the second light source 40 emits light, the window plate 50 scatters and transmits the second light 41 emitted from the second light source 40, so that the light emitting surface of the sky light has a moon pattern. The second light source 40 is a point light source, so that people can see the circular light-emitting source when looking at the light-emitting surface of the sky lamp, and in addition, the power of the second light source 40 is set to be low, so that the light intensity and brightness of the short wavelength scattered in the second light ray 41 are low, blue is not easy to see on the light-emitting surface of the sky lamp, namely, the light-emitting surface of the sky lamp tends to be black except for the light-emitting source, and at the moment, the circular light-emitting source on the light-emitting surface of the sky lamp is seen as if a moon is seen.

According to the skylight provided by the embodiment of the application, in 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 do not emit light, the first light rays 11 emitted by the first light source 10 are subjected to uniform light condensation treatment sequentially through the uniform light element 20 and the light condensation element 30 and then enter the window plate 50, and the light with the short wavelength in the first light rays 11 entering the window plate 50 and the scattering particles inside the window plate 50 generate rayleigh scattering, so that the light emitting surface of the skylight is in a blue sky scene. When the night screen 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, at the moment, because the second light source 40 is a point light source, people can see a light emitting source similar to a full moon shape on the light emitting surface of the sky lamp, and the light emitting surface of the sky lamp can 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 light can simulate blue sky scenes and moon scenes at night, so that the sky light has more sense of reality with outdoor communication, and the problem that people cannot feel oppressed feeling of outdoor activities in haze and rainy days is effectively solved.

The sky lamp that this application embodiment provided has simple structure, advantages such as easy implementation, make the play plain noodles of sky lamp have moon pattern through increasing second light source 40, can make the inner structure design of sky lamp become more nimble, can adjust the position of second light source 40 according to actual demand, make second light source 40 can keep away from first light source 10 and set up, needn't be close to first light source 10, the condition of setting up a large amount of components and parts near first light source 10 has been avoided, thereby can optimize the inner structure design of sky lamp, reduce the degree of difficulty of the inner layout development design of sky lamp, also can provide convenience for the inner structure layout of sky lamp simultaneously.

As shown in fig. 1, in the embodiment of the present application, the first light source 10 is also a point light source, and 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 condensing element 30, so that the light emitting surface of the skylight has a blue sky scene and has a sun pattern. The sun pattern is understood to mean that the person in the room can see a sun image on the light-emitting surface of the sky light, which has the outline of the sun and emits light like the sun.

Through setting first light source 10 to the pointolite, can make indoor personnel not only can see the simulated blue sky when seeing the sky lamp, can also see the simulated sun, can make the play plain noodles of sky lamp present the visual effect of existing blue sky again having the sun pattern promptly, promote the sense of reality of sky lamp, make indoor active personnel can experience the communicating sensation in indoor outdoor space, effectively strengthen the indoor space and extend the sense, and similar sunshine gets into indoor scene from the window illumination, can let indoor personnel mood become joyful, bright.

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 simultaneously, the window plate 50 diffuses and transmits the first light 11 emitted from the condensing element 30 and the second light 41 emitted from the second light source 40, so that the light emitting surface of the sky lamp appears in a blue sky scene and has a sun pattern. That is, the light-emitting surface of the sky lamp is provided with the sun pattern by adding the second light source 40, that is, the light-emitting surface of the sky lamp is provided with the sun pattern and the moon pattern by adding the second light source 40, so that the sky lamp can see the sun hung in the blue sky in the daytime and the moon hung in the night in the same way as a real skylight, the sky lamp has a reality sense of being communicated with the outdoor space, and the experience sense of people is better.

Optionally, in this embodiment of the application, the second light source 40 is disposed on an extension surface of the mounting surface of the first light source 10, which is beneficial to the layout of the interior structure of the skylight, and ensures that people can see the second light source 40 emitting light on the light emitting surface of the skylight.

The light-emitting surface of the sky lamp can present a blue sky effect and simultaneously has a sun pattern through the two modes, when the first light source 10 is a point light source, the effect of having the sun pattern is realized through the first light source 10, that is, when people use the sky lamp, the light-emitting surface of the sky lamp can present the blue sky effect and has the sun pattern only by turning on the first light source 10 to enable the first light source 10 to emit light and the second light source 40 to not emit light. When the first light source 10 is not a point light source, the effect of having a sun pattern is achieved by adding the second light source 40, that is, when people use the sky lantern, the first light source 10 and the second light source 40 need to be turned on at the same time, so that the first light source 10 and the second light source 40 emit light at the same time, and the light-emitting surface of the sky lantern can be enabled to present a blue sky effect and have a sun pattern.

It should be noted that the skylight provided in the embodiment of the present application further includes a housing (not shown in the figure), a control unit (not shown in the figure), a power supply device (not shown in the figure), and the like, where the first light source 10, the dodging element 20, the light focusing element 30, and the second light source 40 are all disposed in the housing, the control device includes a main control board built in the housing and a control terminal (for example, a remote controller or a mobile terminal, and the like) for controlling mode adjustment of the skylight, and the power supply device can provide electric energy for the first light source 10, the second light source 40, the control device, and the like. One can turn on or off the first/second light sources 10/40 by the control device to make the light-emitting surface of the sky light have a sun pattern or a moon pattern.

As shown in fig. 1-3, in an embodiment of the present application, the skylight further includes a first reflecting element 60, the first reflecting element 60 for reflecting the first rays 11 exiting from the light condensing element 30 to the window plate 50 or for reflecting the second rays 41 exiting from the second light source 40 to the window plate 50. Through setting up first reflection element 60, can turn the direction of the first light 11 of condensing element 30 outgoing and the second light 41 of second light source 40 outgoing, make the first light 11 of outgoing and the second light 41 of outgoing get into window board 50 with specific angle, be favorable to reducing the size of sky lamp to make the staff can convenient and fast install the sky lamp.

Further, as shown in fig. 1 to 3, in the embodiment of the present application, a driving element 70 is disposed on the first reflective element 60, and the driving element 70 is configured to drive the first reflective element 60 to rotate so as to change a position of the moon pattern on the light-emitting surface of the sky light. By arranging the driving element 70, indoor personnel can rotate the first reflecting 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, the sky lamp is more realistic, and the use experience of the indoor personnel is improved. Of course, the position of the sun pattern on the light exit surface of the skylight can also be changed by rotating the first reflective element 60.

The embodiment of the present application does not limit any specific form of the driving element 70, as long as the driving element can drive the first reflecting element 60 to rotate, for example, the driving element 70 may be a driving device capable of rotating, such as a motor or a motor, and all the possible forms should be included in the protection scope of the present application.

Specifically, as shown in fig. 1 to 3, in the embodiment of the present application, a second reflective element 61 is further disposed between the light-condensing element 30 and the first reflective element 60 and between the second light source 40 and the first reflective element 60, and the second reflective element 61 is configured to reflect the first light ray 11 emitted from the light-condensing element 30 to the first reflective element 60 or reflect the second light ray 41 emitted from the second light source 40 to the first reflective element 60. By adding the second reflecting element 61, the light paths of the first light ray 11 and the second light ray 41 can be turned twice, so that the light paths can be further compressed to further reduce the size of the sky light.

As shown in fig. 1 to 3, in the present embodiment, the skylight further includes a plurality of pattern plates 80, each pattern plate 80 is provided with a different moon phase pattern (e.g., crescent, or crescent, etc.), and each pattern plate 80 is alternatively applied between the second light source 40 and the second reflective element 61 to present different shapes of moon patterns on the light emitting surface of the skylight. Through setting up pattern board 80, can make the shape of moon pattern follow the change of moon phase and change, make indoor personnel more experience indoor outdoor space communicating sensation, promote indoor personnel to the experience of sky lamp and feel.

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, the power of the second light source 40 may be any value between 3W and 15W, for example, the power of the second light source 40 may be set to 3W, 10W or 15W, so that people can see the light source similar to a full moon while avoiding the second light 41 entering the window plate 50 and then making the light-emitting surface of the sky light appear a blue sky scene.

Specifically, the pattern area on the pattern plate 80 is a light-transmitting area, and the non-pattern area is a light-shielding area. When people need to change the moon pattern on the sky lamp, the pattern plates 80 of different shapes can be moved between the light paths of the second light source 40 and the third reflecting element 62 by a driving device such as a motor, so that the moon pattern corresponding to the pattern on the pattern plate 80 is presented on the light-emitting surface of the sky lamp.

For example, when the external moon shape is a full moon, the user only needs to turn on the second light source 40 to make the first light source 10 not emit light from the second light source 40, because the second light source 40 is a point light source, the light emitting surface of the sky lantern is circular, i.e. a moon pattern similar to the full moon shape, and when the external moon shape is a bottom moon, the indoor user can control a driving device such as a motor through a control device to move the pattern plate 80 similar to the bottom moon shape between the light paths of the second light source 40 and the third reflective element 62, and after the second light 41 emitted from the second light source 40 passes through the pattern plate 80 similar to the bottom moon shape, the light emitting surface of the sky lantern is made to emit a moon pattern similar to the bottom moon shape.

In the embodiment of the present application, the first light source 10 and the second light source 40 include any one of a high color temperature white light spectrum, a low color temperature white light spectrum, a daylight full spectrum, an infrared band, and an ultraviolet band. The color temperature is a unit of measure representing the color component contained in the light. The color temperature of sunlight changes continuously during the day, 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 arrangement, the sky lamp can better simulate the illumination effect of sunlight irradiation, so that the sky lamp has more reality and the experience of indoor personnel is improved. In addition, the color temperature of the first light source 10 and the second light source 40 should be selected to a safe band that ensures the health of a person according to the requirements of the application environment.

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

Optionally, in this embodiment of the application, the LED light source may adopt a COB (Chip on board) or CSP (Chip scale package) packaging manner, so that the LED light source has a smaller volume and is thinner.

As shown in fig. 4, in the embodiment of the present application, the first light source 10 is an LED light source array, wherein the high color temperature light sources 12 (the square portion with stripe filling in fig. 4) and the low color temperature light sources 13 (the blank square portion in fig. 4) are arranged alternately, in which case the light emitting surface of the first light source 10 is rectangular, and the diagonal length of the light emitting surface of the first light source 10 is D.

As shown in fig. 1 to 3, in the embodiment of the present application, the light uniformizing element 20 is a light uniformizing rod, and the first light 11 emitted from the first light source 10 is totally reflected at least three times in the light uniformizing rod, so that the first light 11 emitted from the light uniformizing rod can be sufficiently mixed to form an illumination spot with uniform light color.

As shown in fig. 1 to 4, in the embodiment of the present application, the light emitting surface of the first light source 10 is rectangular, the light homogenizing element 20 is rectangular, and the length L of the light homogenizing element 20 has a value range of: l is not less than 3D and not more than 5D, wherein D is the diagonal length of the light emitting surface of the first light source 10. That is, the length L of the light unifying element 20 is at least 3 times the length D of the diagonal line of the light emitting face of the first light source 10 and at most 5 times the length D of the diagonal line of the light emitting face of the first light source 10. By setting the length L of the light unifying element 20 within this range, the first light 11 entering the light unifying element 20 can be totally reflected at least 3 times in the light unifying element 20 while reducing the size of the light unifying element 20, so as to form an illumination spot with uniform light color.

Specifically, in the embodiment of the present application, the light equalizing rod has two ends distributed along the axial direction, wherein an end surface of the light equalizing rod close to the first light source 10 is a light incident surface of the light equalizing rod, and an end surface of the light equalizing rod far away from the first light source 10 is a light emitting surface of the light equalizing rod, and the first light 11 emitted from the first light source 10 enters the light equalizing rod from the light incident surface of the light equalizing rod, and is emitted from the light emitting surface of the light equalizing rod after being reflected by the light equalizing rod for multiple times to achieve an optical effect of uniform light color.

Optionally, in this embodiment of the application, the light uniformizing rod may be a hollow light uniformizing rod formed by splicing four planar high reflection mirrors, or may be a solid light uniformizing rod formed by solid high temperature resistant optical glass.

Optionally, in the embodiment of the present application, the material of the light homogenizing rod is a high temperature resistant optical plastic, an optical glass, or a metal with a light reflecting property. The optical plastic may be PC (Polycarbonate), PMMA (Polymethyl methacrylate), etc., the optical glass may be quartz glass, K9 glass, etc., and the metal having a light reflecting property may be aluminum, etc.

As shown in fig. 1 to 3, in the embodiment of the present application, the light condensing element 30 includes a plurality of light condensing lenses arranged in parallel at intervals along the light path, and the light condensing lenses are configured to control the light emitting angle of the first light source 10 to be between 5 degrees and 45 degrees. By controlling the light exit angle of the light beam formed by the first light rays 11 emitted from the condensing element 30 to be between 5 degrees and 45 degrees, it is possible to ensure that the first light rays 11 emitted from the condensing element 30 cover the window plate 50 while reducing the light amount loss.

Specifically, in the embodiment of the present application, the condensing lenses are all plano-convex lenses, the condensing element 30 includes three plano-convex lenses arranged in parallel at intervals, a plane of the plano-convex lens closest to the light uniformizing element 20 is an incident plane of the condensing element 30, and an outer convex arc surface of the plano-convex lens farthest from the light uniformizing element 20 is an exit plane of the condensing element 30. The light condensing element 30 can condense the large-angle light emitted from the light homogenizing element 20 to reduce the light emitting angle of the light beam formed by the first light 11 emitted from the light homogenizing element 20, so that the volume of the second reflecting element 61 matched with the light condensing element can be smaller, thereby being beneficial to further miniaturization of the size of the skylight.

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

As shown in fig. 5, in the embodiment of the present application, the light spot of the condensing element 30 directed to the window plate 50 entirely covers the window plate 50, and the window plate 50 has a rectangular shape where the length L1 and the width W1 of the light spot are greater than the length L2 and the width W2 of the window plate 50. Through the arrangement, light spots emitted to the window plate 50 can completely cover the window plate 50, so that blue sky scenes can be presented on the whole light emitting surface of the sky lamp, the sky lamp is more realistic, and the use experience of people is improved.

Specifically, the window plate 50 is generally rectangular, and in other embodiments, the window plate 50 may also be designed in other shapes according to actual lighting requirements or indoor design requirements, and only the rectangle can obtain a larger light exit surface. In addition, the plurality of nano-scattering particles inside the window plate 50 are uniformly distributed, and the scattering effect on blue light can be enhanced.

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

Fig. 6 is a schematic view of an optical path structure of a skylight when a first light source emits light and a second light source does not emit light according to another embodiment of the present disclosure. Fig. 7 is a schematic view of an optical path structure of a skylight in another embodiment of the present application when a first light source is not emitting light and a second light source is emitting light. Fig. 8 is a schematic view of an optical path structure of a skylight when a first light source and a second light source emit light simultaneously according to another embodiment of the present disclosure.

As shown in fig. 6-8, compared to the embodiments shown in fig. 1-5, in the present embodiment, the skylight includes only the first reflective element 60, and the arrangement of only the first reflective element 60 can reduce the light loss and improve the light extraction efficiency.

Alternatively, as shown in fig. 6-8, a pattern plate 80 may be alternatively applied between the second light source 40 and the first reflective member 60 to present different moon patterns on the light emitting surface of the sky light.

Fig. 9 is a schematic view of an optical path structure of a skylight when a first light source emits light and a second light source does not emit light according to yet another embodiment of the present disclosure. Fig. 10 is a schematic view of an optical path structure of a skylight according to yet another embodiment of the present application when a first light source does not emit light and a second light source emits light.

As shown in fig. 9-10, compared to the previous embodiments shown in fig. 1-8, in this embodiment, the skylight further includes a third reflective element 62 disposed between the second light source 40 and the first reflective element 60, in this case, the second reflective element 61 is only used for reflecting the first light ray 11 emitted from the light-gathering element 30 to the first reflective element 60, and the second light ray 41 emitted from the second light source 40 is reflected to the first reflective element 60 by the third reflective element 62. By adding the third reflecting element 62 to reflect the second light ray 41 emitted from the second light source 40 alone, the volume of the second reflecting element 61 can be set smaller, thereby contributing to further miniaturization of the skylight size.

Alternatively, as shown in fig. 9-10, a pattern plate 80 may be alternatively applied between the second light source 40 and the third reflective member 62 to present different moon patterns on the light emitting surface of the sky light.

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 skylight, comprising:

a first light source (10) for emitting a first light ray (11);

the dodging element (20) is arranged on the light emitting side of the first light source (10) and is used for dodging the first light (11) entering the dodging element (20);

the light condensing element (30) is arranged on the light outlet side of the light homogenizing element (20) and is used for condensing the first light (11) entering the light condensing element (30) from the light homogenizing element (20);

a second light source (40) which is a point light source and emits a second light (41);

a window plate (50) for scattering and transmitting the first light (11) emitted from the condensing element (30) when the first light source (10) emits light and the second light source (40) does not emit light, so that a light emitting surface of the skylight appears as a blue sky scene; when the first light source (10) does not emit light and the second light source (40) emits light, the second light source is used for scattering and transmitting second light rays (41) emitted from the second light source (40) so that the light emitting surface of the sky light has a moon pattern.

2. A skylight as set forth in claim 1, characterized in that said first light source (10) is a point light source, and said window panel (50) scatters and transmits said first light rays (11) exiting from said light-condensing element (30) when said first light source (10) is emitting light and said second light source (40) is not emitting light, so that said light exit surface of said skylight appears as a blue sky scene and has a sun pattern.

3. A skylight as set forth in claim 1, characterized in that said window panel (50) scatters and transmits said first light rays (11) emanating from said light-concentrating element (30) and said second light rays (41) emanating from said second light source (40) when said first light source (10) and said second light source (40) are simultaneously illuminated to present said light-exiting surface of said skylight as a blue-sky scene with a sun pattern.

4. A skylight as claimed in claim 3, characterized in that said first light source (10) has a rectangular light emitting surface, said light homogenizing element (20) has a rectangular parallelepiped configuration, and said length L of said light homogenizing element (20) has a value ranging from: l is not less than 3D and not more than 5D, wherein D is the diagonal length of the luminous surface of the first light source (10).

5. A skylight according to any of claims 1-4, further comprising a first reflecting element (60), said first reflecting element (60) for reflecting said first light rays (11) exiting from said light-concentrating element (30) to said window panel (50) or for reflecting said second light rays (41) exiting from said second light source (40) to said window panel (50).

6. A skylight lamp as claimed in claim 5, characterized in that said first reflective element (60) is provided with a driving element (70), said driving element (70) being configured to drive said first reflective element (60) to rotate for changing the position of said moon pattern on said light exit surface of said skylight lamp.

7. A skylight according to claim 5, characterized in that a second reflecting element (61) is provided between said light-gathering element (30) and said first reflecting element (60) and between said second light source (40) and said first reflecting element (60), said second reflecting element (61) being adapted to reflect said first light rays (11) exiting from said light-gathering element (30) to said first reflecting element (60) or to reflect said second light rays (41) exiting from said second light source (40) to said first reflecting element (60).

8. A skylight as set forth in claim 7 further comprising a plurality of pattern panels (80), each of said pattern panels (80) having a different moon phase pattern disposed thereon, each of said pattern panels (80) being interchangeably applicable between said second light source (40) and said second reflective element (61) to present a different moon pattern on said light exit surface of said skylight.

9. A skylight according to any of claims 1-4 and 6-8, characterized in that said condensing element (30) comprises a plurality of condensing lenses arranged in parallel at intervals along the light path for controlling the light exit angle of said first light source (10) between 5 and 45 degrees.

10. A skylight lamp as claimed in any of claims 1-4, 6-8, characterized in that said dodging element (20) is a dodging rod, inside which said first light ray (11) exiting said first light source (10) is at least three total reflections.

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