CN112577020A

CN112577020A - Multi-sense organ sky lamp

Info

Publication number: CN112577020A
Application number: CN202011593027.8A
Authority: CN
Inventors: 章琳; 戴露莹; 程洛林
Original assignee: CETHIK Group Ltd
Current assignee: CETHIK Group Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-03-30

Abstract

The invention discloses a multi-sensory sky lantern which comprises an LED module, a collimating lens group, a compound eye lens group, a moon magic lens group and a window plate, wherein the LED module, the collimating lens group, the compound eye lens group and the window plate are sequentially distributed along a light path. The invention has high optical efficiency, can realize blue sky, sun and moon modes and has good sensory effect.

Description

Multi-sense organ sky lamp

Technical Field

The application belongs to the technical field of lamps and lanterns, concretely relates to sense organ sky lamp.

Background

Sky light, a light fixture, uses LED light sources. In the display of the sky light, the LED light is collimated and then emitted from the window at a small angle, and the light source can be similar to the sun in the light beam range. The window is generally square, the window presents blue, adopts the rayleigh scattering board or adopts the scheme that blue light enters the light guide plate from the side.

The existing sky lamp can simulate sunlight and blue sky. Array LEDs are generally adopted, and the LEDs are changed into approximately parallel light after passing through a TIR lens and then pass through an array fly eye lens to form a square-like light spot to be irradiated on a window. In order to compress the size of a part of the sky lamp, a large reflector is needed on the light path. This makes the overall skylight solution complicated in light path, with many optical elements, and requires an array of LED lenses. And because the length of the LED array is required to be equal to that of the blue sky light window, and the length of the fly eye lens array is also required to be equal to that of the blue sky light window, the assembly is more complex and the cost is high.

In the implementation of a sky light, array LEDs are also adopted in the prior art, light emitted by each LED is collimated by a lens and a reflector and then irradiates an array prism, and the parallel LEDs are refracted by the prism to form parallel light which is emitted vertically. However, the scheme requires that the light beam is very collimated, so that the optical efficiency is very low, and an array prism structure is adopted, so that the uniformity is poor, the edge is blurred and unclear, the light spots have colored edges, and meanwhile, the adopted array prism can cause bright lines on the emergent surface, so that the effect of the sky light is poor.

Disclosure of Invention

An object of the application is to provide a sense organ sky lamp, optics is efficient, and can realize blue sky, sun and moon mode, and the sense organ is effectual.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides a multi-sensory sky lantern, multi-sensory sky lantern includes LED module, collimating lens group, compound eye lens group, moon magic lamp group and the window board that distributes in proper order along the light path, LED module, collimating lens group, compound eye lens group and window board are fixed mounting, moon magic lamp group is portable installation, moon magic lamp group's removal route is for removing to non-illumination scope by the illumination zone, perhaps removes to the illumination scope by non-illumination scope, the light path scope behind the illumination scope is through compound eye lens group, non-illumination scope is the scope beyond the light path behind the compound eye lens group.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Preferably, the surface of the window plate is rectangular, and the aspect ratio of the effective light emitting size of the LED module matches with the aspect ratio of the window plate.

Preferably, the collimating lens group includes two collimating lenses, and at least one of the two collimating lenses is an aspheric lens.

Preferably, the fly-eye lens group includes two fly-eye lenses, one surface of each fly-eye lens is a plane, the other surface of each fly-eye lens is a square lens unit arranged in an array, the plate surface of the window plate is rectangular, and the length-width ratio of each square lens unit is matched with the length-width ratio of the window plate; the two fly-eye lenses are placed in a mode of being opposite to each other, in the same direction or in the opposite direction.

Preferably, when the two fly-eye lenses are placed oppositely, the surfaces of the two fly-eye lenses close to each other are attached to each other.

Preferably, a plurality of reflectors are arranged between the window plate and the moon slide show group.

Preferably, the window plate is a transparent plate, and titanium dioxide nanoparticles are uniformly distributed in the transparent plate;

or, the window plate is a light guide plate, blue light LED modules are uniformly arranged on two opposite sides or peripheral sides of the light guide plate, and microparticles for light scattering are uniformly distributed in the light guide plate.

Preferably, the group of moon slides includes a moon slide with a moon pattern and a diffusion plate with a light diffusion effect, wherein the diffusion plate is closer to the fly's eye lens group with respect to the moon slide.

The utility model provides a many sense organs sky lantern adopts the mode that collimating lens and fly's eye lens combined together, effectively improves optical efficiency to realize the switching of two kinds of modes of sun and moon through mobilizable moon slide mount and show, promote user's sense organs effect. The whole skylight has high optical efficiency, simple design, less optical elements and low manufacturing cost.

Drawings

FIG. 1 is a schematic view of a multi-sensor sky light of the present application;

FIG. 2 is a schematic view of a multisensory skylight of the present application in a sun mode;

FIG. 3 is a schematic structural diagram of a fly-eye lens;

FIG. 4 is a schematic view of the installation of a fly-eye lens assembly according to the present application;

FIG. 5 is a schematic view of a multi-sensory skylight with reflectors added according to the present application;

fig. 6 is a schematic structural diagram of an embodiment of a window plate according to the present application.

In the drawings: 1. an LED module; 2. a collimating lens group; 3. a compound eye lens group; 4. a window plate; 5. a diffusion plate; 6. the moon slides.

Detailed Description

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 only a part of the embodiments of the present application, and not all of the 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

As shown in fig. 1, in an embodiment, a multi-sensory sky lantern is provided, and the multi-sensory sky lantern of this embodiment includes an LED module 1, a collimating lens group 2, a fly-eye lens group 3, a moon slide group, and a window plate 4, which are sequentially distributed along an optical path.

The LED module 1, the collimating lens group 2, the compound eye lens group 3 and the window plate 4 are fixedly installed, the moon slide lens group is movably installed, and the moving path of the moon slide lens group moves from the illumination range to the non-illumination range or from the non-illumination range to the imaging range. The illumination range in this embodiment is understood as a range of a light path after passing through the fly-eye lens group, and the non-illumination range is understood as a range other than the light path after passing through the fly-eye lens group 3.

The multi-sensor sky lamp provided by the embodiment takes the LED module as a luminous source, and the light emitted by the LED module is changed into square light spots through the collimating lens group and the fly-eye lens group, and then the multi-sensor sky lamp is used for presenting a sun mode, a blue sky mode or a moon mode. When the sky lantern of the application is required to be in a sun mode, the moon lantern slide group is moved out of the light path, as shown in fig. 2; when the sky light of the application needs to be in a moon mode, the light intensity of the LED module is reduced, and the moon slide mount group is moved into the light path, as shown in fig. 1, so that the sun mode and the moon mode can be simply switched.

In one embodiment, in order to obtain a more effective presentation of the moon, the set of moon slides includes a moon slide 6 with a moon pattern and a diffuser plate 5 with a light diffusion effect, wherein the diffuser plate 5 is closer to the fly's eye lens group with respect to the moon slide 6. The diffusion plate can enable the moon lantern slide to be uniformly illuminated and the light rays to be soft. The moon slide 6 and the diffusion plate 5 may be of an integral structure or of a separate structure.

The light from the LED module 1 passes through the diffuser plate 5 and illuminates the moon slide 6, i.e. the moon is visible from the window. After the moon mode is switched to, the brightness of the LED light source needs to be reduced, so that the moon mode presented by the sky lamp is closer to the moon mode in the actual environment.

Of course, in other embodiments, when the requirement on the presentation effect is not high, the moon presentation effect may also be realized by only using the moon slide, and the moon slide may not be within the above-mentioned illumination range, but may be illuminated by other light sources alone.

The movement of the moon slide 6 in the present application may be manually or automatically performed. For example, a rotating shaft is installed at one edge of the moon lantern slide group, a convex sliding block is arranged at the opposite edge of the rotating shaft, a hollow slide way is arranged on a shell of the sky lantern and used as a motion path for limiting the sliding block, the sliding block can be manually moved to realize the switching between the sun mode and the moon mode, a small motor can be connected to the rotating shaft, and the rotating shaft is driven by the motor to rotate to realize the switching between the sun mode and the moon mode.

In order to improve the system efficiency, the surface of the window plate 4 in this embodiment is rectangular, and the aspect ratio of the effective light emitting size of the LED module 1 matches the aspect ratio of the window plate 4. Since the illumination spot is typically larger than the window size and may be at oblique incidence, the aspect ratios are typically not equal, where matching is understood to be similar, which arrangement is advantageous for increasing the optical efficiency of the system.

The collimating lens group 2 in this embodiment includes two collimating lenses, light emitted by the LED module 1 is collimated into approximately parallel light, and at least one of the two collimating lenses is an aspheric lens, which makes the light more collimated and improves the optical efficiency of the whole optical path system.

And the two collimating lenses are preferably made of glass materials so as to ensure the effect of the lenses.

As shown in fig. 3, the fly-eye lens group 3 in this embodiment includes two fly-eye lenses, one surface of each fly-eye lens is a plane, the other surface of each fly-eye lens is a square lens unit arranged in an array, a plate surface of the window plate 4 is a rectangle, and an aspect ratio of the square lens unit matches with an aspect ratio of the window plate 4.

Since the illumination spot will be suitably larger than the window, it is ensured that the window is illuminated. In this embodiment, the aspect ratio is matched, so that the less light is blocked by the window, the higher the optical efficiency, and similarly, the matching is understood to be similar.

As shown in fig. 4, the two fly-eye lenses are placed in a manner of being opposite to each other, in the same direction, or in opposite directions. The embodiment is preferably placed in a back-to-back mode, and the size is the smallest and the optical efficiency is the highest when the two are placed in the back-to-back mode. And when the two fly-eye lenses are placed in a back-to-back manner, the surfaces of the two fly-eye lenses close to each other are attached to each other, namely the fly-eye lens group can also be a single fly-eye lens, and the two surfaces of the single fly-eye lens are both composed of array square units.

In order to make the skylight suitable for being installed and used in various occasions, the window plate and the optical axis of the present embodiment may be perpendicular to each other, or may present a certain included angle. As shown in fig. 5, a plurality of reflective mirrors are disposed between the window plate and the moon slide show group. The light path is continuously changed through the plurality of reflectors, the size in the height direction or the length direction can be compressed while the light effect is normally presented, and the overall size of the whole lamp is reduced. In order to reduce reflection losses, it is preferable to select mirrors with high reflection effects, so as to ensure a reduced volume while still having a high optical efficiency.

The window plate in this embodiment is a transparent plate, and titanium dioxide nanoparticles are uniformly distributed in the transparent plate. The titanium dioxide nanoparticles scatter blue light more strongly than yellow light, so that the window plate appears blue.

As shown in fig. 6, the window plate may also be a light guide plate, blue LED modules are uniformly arranged on two sides or around the light guide plate, the blue LED modules are tightly attached to the side wall of the light guide plate, and blue light emitted by the blue LED modules enters the light guide plate through the side wall. The blue light entering the light guide plate satisfies the total reflection condition for the upper and lower surfaces of the light guide plate, so that the blue light is not emitted from the surface of the light guide plate, but is transversely conducted along the light guide plate.

The light guide plate is internally provided with micron-sized scattering particles (diffusion particles), when blue light touches the micron particles, the light is randomly scattered, and part of the light does not meet the total reflection condition and penetrates through the surface of the light guide plate to be emitted, so that the light guide plate is blue. Because the length and width of the light guide plate are far larger than the thickness of the light guide plate, the probability that the emergent light meets the scattering particles is far smaller than that of the side blue LED module.

It should be noted that, in order to obtain a better moon mode, the window plate in this embodiment preferably adopts a transparent plate material with nanoparticles distributed therein, and the window plate hardly presents color under the condition of weak illumination intensity; of course, the light guide plate may be selected to turn off or reduce the illumination of the blue LED modules disposed on both sides or around the light guide plate.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a multi-sensory sky lantern which characterized in that, multi-sensory sky lantern includes LED module, collimating lens group, compound eye lens group and the window board that distributes in proper order along the light path, LED module, collimating lens group, compound eye lens group and window board are fixed mounting, moon light lens group is movable installation, moon light lens group's removal route is for removing to non-illumination scope by the illumination zone, perhaps removes to the illumination zone by non-illumination scope, the light path scope behind the illumination zone is through compound eye lens group, non-illumination scope is the scope beyond the light path behind compound eye lens group.

2. The multi-sensorial skylight of claim 1, wherein a panel surface of the window panel is rectangular, and wherein an aspect ratio of an effective light emitting dimension of the LED module matches an aspect ratio of the window panel.

3. The multi-sensory skylight of claim 1, wherein said collimating lens group comprises two collimating lenses, and at least one of said two collimating lenses is an aspheric lens.

4. The multi-sensory skylight of claim 1, wherein said fly-eye lens set comprises two fly-eye lenses, one side of said fly-eye lenses is a flat surface, the other side of said fly-eye lenses is a square lens unit arranged in an array, a plate surface of said window plate is a rectangle, and an aspect ratio of said square lens unit matches an aspect ratio of said window plate; the two fly-eye lenses are placed in a mode of being opposite to each other, in the same direction or in the opposite direction.

5. The multi-sensory sky light of claim 4 wherein said fly's eye lenses lie against each other on sides of the fly's eye lenses that are adjacent to each other.

6. The multi-sensorial skylight of claim 1, wherein a plurality of reflectors are provided between the window panel and the set of moon slides.

7. The multi-sensory skylight of claim 1, wherein said window panel is a transparent sheet, and wherein titanium dioxide nanoparticles are uniformly distributed within said transparent sheet;

8. The multi-sensory sky light of claim 1 wherein the set of moon slides includes a moon slide with a moon pattern and a diffuser plate with a light diffusing effect, wherein the diffuser plate is closer to the fly's eye lens set than the moon slide.