CN117249407A - Lighting device and lighting method based on combination of flat lens, concave lens and convex lens - Google Patents

Abstract

The utility model belongs to the technical field of indoor lighting, and discloses a lighting device and a lighting method based on a combination of a flat lens, a concave lens and a convex lens, wherein the lighting device comprises a plurality of lighting parts and a plurality of light-transmitting parts; the lighting part consists of a concave lens array arranged on the natural light incidence side and a convex lens array arranged on the natural light emergence side; the light-transmitting part is a flat lens array and is arranged among the plurality of lighting parts; the light collecting regions transmitted by the plurality of light collecting portions and the light transmitting regions transmitted by the plurality of light transmitting portions are alternately arranged. The utility model can make the natural light incident from the window in daytime diffuse to each part in the house, make full use of the natural light to carry out indoor lighting, and simultaneously can present outdoor scenery, i.e. outdoor scenery can be seen by indoor personnel, and the visual image of the outdoor scenery is not displaced or is biased to be still in the position of the scene in situ. The utility model can save energy, reduce emission and improve the energy utilization rate. The device is environment-friendly and pollution-free, and does not need energy supply during use.

Description

Lighting device and lighting method based on combination of flat lens, concave lens and convex lens

Technical Field

The utility model belongs to the technical field of indoor lighting, and particularly relates to a lighting device and a lighting method based on a combination of a flat lens, a concave lens and a convex lens.

Background

At present, energy is a material foundation for survival and development of human society, and the global energy supply is in a shortage dilemma at the present stage, so that a series of serious consequences are brought to global economic development, and even war can be possibly caused, and therefore, the energy has a particularly important strategic position in national economy. The related data show that the global building energy consumption accounts for 41% of the total energy consumption, the building energy consumption accounts for higher and higher proportion along with the acceleration of the urban process, and the data published in the related aspects of China show that the building energy consumption accounts for 46% of the total energy consumption in China in 2021, and the illumination in the building energy consumption accounts for about 30% of the building energy consumption. Among the various illumination sources, natural light from the sun does not require cost and is pollution-free, and even if a small portion of artificial illumination is replaced with natural light, a large amount of energy can be saved.

The indoor daytime of building is that the indoor position near the south-facing window and curtain wall is directly irradiated by sunlight, the illuminance is high, the indoor position far from the south-facing window and curtain wall is insufficient, and the indoor position near the north-facing room can not see the sun even all the year round. Therefore, in the utilization of natural light, how to fully collect the natural light and enable the natural light to be introduced into a room has very important significance.

To solve the above problems, using windows, curtains, blinds, etc., technicians have developed various technologies for introducing sunlight into a room to provide illumination, among which more common and easy technologies are: natural light which cannot be used for illuminating the whole room originally can be more effectively used for illuminating the room by leading the light to the whole region in the south direction and even to the north direction through a certain device. At present, technicians have developed various technologies for guiding natural light into the room to provide indoor illumination, but the problems of low light utilization rate, uneven lines, glare generation, invisible outdoor scenery and the like exist, and practical application of the indoor natural light acquisition technology is limited. In order to solve the above problems, U.S. patent application US20180095196A1 and the like is published, U.S. patent US20170284619A1 and the like is issued, and chinese patent CN114321818a and the like is published, chinese patent CN201320558849 and the like is issued, and the above technology is a structured or microstructured light transmission device with conventional size, but the above technology cannot solve the problems of low light utilization rate, uneven light, glare generation and invisible outdoor scenery at the same time, and still limits the practical application of natural light collection technology.

Therefore, it is a matter of urgent need for those skilled in the art to collect natural light while keeping outdoor scenes visible.

Through the above analysis, the problems and defects existing in the prior art are as follows: the existing mode of guiding natural light into the room has the problems of low light utilization rate, uneven light, glare generation and invisible outdoor scenery, and limits the practical application of the natural light acquisition technology.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides a lighting device and a lighting method based on a combination of a flat lens, a concave lens and a convex lens.

The utility model is realized in that a lighting device based on a combination of a flat lens, a concave lens and a convex lens comprises:

a plurality of lighting parts and a plurality of light-transmitting parts;

the lighting part consists of a concave lens array arranged on the natural light incidence side and a convex lens array arranged on the natural light emergence side;

the light-transmitting part is a flat lens array and is arranged among the plurality of lighting parts;

the light collecting regions transmitted by the plurality of light collecting portions and the light transmitting regions transmitted by the plurality of light transmitting portions are alternately arranged.

Further, the focal point of a single convex lens in the convex lens array of the lighting part is located at the center of a corresponding single concave lens in the concave lens array, so that light rays are diffused to an indoor space.

Further, the focal point of a single convex lens in the convex lens array of the lighting part is located behind the focal point of a corresponding single concave lens in the concave lens array, so that light rays are diffused to an indoor space.

Further, the convex lens array of the lighting part is unequal to the concave lens array unit in size, and the convex lens size meets the requirement of collecting and converging the corresponding concave lens divergent light beams;

the convex lens array of the lighting part is a partial lens array, and the unit structure of the convex lens array is a light passing part of a single convex lens;

the convex lens array of the lighting part and the concave lens array are arranged in a staggered mode, and the staggered quantity is the clear aperture size of a single concave lens of the convex lens array.

Further, a transparent material is arranged between the concave lens array and the convex lens array, and the transparent material is the same as the material of the lighting part and the light-transmitting part;

the transparent material is inorganic ceramic and organic high polymer with visible light transparency more than 85 percent and fiber and nano composite material.

Further, in the normal direction of the flat lenses between the concave lens array and the convex lens array of the lighting section, the lighting area and the light transmitting area are arranged in a linear or curved stripe shape, a square grid shape or other non-periodic arbitrary patterns.

Further, the outer side or the inner side and the outer side of the flat lens are provided with a protective plate, the protective plate is transparent or is used for a diffuse reflection part of a lighting part, and the lighting part and a light transmission part are arranged on one side or the middle of the protective plate.

Further, the light diffusion unit diffuses light emitted from the plurality of the lighting units or light incident to the plurality of lighting units;

the light diffusion portion forms a light diffusion region including a lighting region and diffusing more than the lighting region from a normal direction of the flat lens.

Further, a plurality of lighting strips of an elongated shape or a square shape, the plurality of lighting strips including: the strip having a plurality of the light collecting portions and a plurality of the light transmitting portions is alternately arranged in at least one direction of the inner side or the outer side or the inner and outer sides of the transparent material.

Another object of the present utility model is to provide a lighting method based on a combination of a flat lens, a concave lens and a convex lens, the lighting method based on a combination of a flat lens, a concave lens and a convex lens comprising:

step one, a concave lens array of a lighting part is arranged on the outer side of an outdoor and used for transmitting incident outdoor natural light so as to lead the natural light to be dispersed,

and secondly, the convex lens array is arranged on the indoor side and used for conducting natural light of the concave lens in the room, so that the light is focused and then diverged into the room.

In combination with the technical scheme and the technical problems to be solved, the technical scheme to be protected has the following advantages and positive effects:

first, aiming at the technical problems in the prior art and the difficulty in solving the problems, the technical problems solved by the technical proposal of the utility model are analyzed in detail and deeply by tightly combining the technical proposal to be protected, the results and data in the research and development process, and the like, and some technical effects brought after the problems are solved have creative technical effects. The specific description is as follows:

the utility model provides a natural light lighting device and a natural light lighting method based on a combination of a flat lens, a concave lens and a convex lens, which can efficiently collect natural light entering a window, disperse the light to all directions indoors, fully utilize the natural light to perform indoor lighting, save energy, reduce emission, improve energy utilization rate and enable outdoor scenes to be visible.

The utility model can make the natural light incident from the window in daytime diffuse to each part in the house, make full use of the natural light to carry out indoor lighting, and simultaneously can present outdoor scenery, i.e. outdoor scenery can be seen by indoor personnel, and the visual image of the outdoor scenery is not displaced or is biased to be still in the position of the scene in situ. The utility model can save energy, reduce emission and improve the energy utilization rate. The device is environment-friendly and pollution-free, does not need energy supply during use, can be used as an accessory to be applied to building windows and curtain walls, and can also be directly used as curtains, shutters and indoor partitions, so that natural light enters the indoor space and outdoor scenery can be presented.

Secondly, the technical scheme is regarded as a whole or from the perspective of products, and the technical scheme to be protected has the following technical effects and advantages:

the utility model can efficiently collect the natural light incident on the window, and disperse the light to all directions indoors, and can also present outdoor scenery, thus being light, thin, easy to produce in mass production, environment-friendly and pollution-free.

Drawings

Fig. 1 is a schematic structural diagram of a lighting device based on a combination of a flat lens, a concave lens and a convex lens according to an embodiment of the present utility model;

fig. 2 is an overall sectional view of a variation example 1 of a lighting portion along the up-down direction of the outside of a transparent material provided by an embodiment of the present utility model;

FIG. 3 is an enlarged partial cross-sectional view of FIG. 2 in accordance with an embodiment of the present utility model;

fig. 4 is an overall sectional view of a variation example 2 of a lighting portion along the up-down direction of the inside of a transparent material provided by an embodiment of the present utility model;

fig. 5 is an overall sectional view of a variation example 3 in which lighting sections provided by the embodiment of the present utility model are respectively arranged in the up-down direction of the inside and outside of a transparent material;

fig. 6 is an overall sectional view of a variation example 4 in which a lighting portion provided by an embodiment of the present utility model is arranged in the up-down direction of an intermediate air medium;

fig. 7 is a sectional view of an arrangement variation example 1 of a concave lens and a convex lens of a lighting section provided by an embodiment of the present utility model;

fig. 8 is a sectional view of a variation example 2 of the arrangement of the concave lens and the convex lens of the lighting section provided by the embodiment of the present utility model;

fig. 9 is a sectional view of an arrangement variation example 3 of a concave lens and a convex lens of a lighting section provided by an embodiment of the present utility model;

fig. 10 is a cross-sectional view of a variation example 4 of the arrangement of the daylighting portion concave lens and convex lens provided by the embodiment of the utility model;

fig. 11 is a sectional view of a variation example 5 of the arrangement of concave lenses and convex lenses of a lighting section provided by an embodiment of the present utility model, in which the number of convex lenses N1, N2, N3 is 1 or more and the lens distances L1, L2, L3 are 0 or more;

fig. 12 is a cross-sectional view of a variation example 6 of the arrangement of the concave lens and the convex lens of the lighting part provided by the embodiment of the present utility model, showing that the lens distances L1, L2, L3 may be different from example 5;

fig. 13 is a sectional view of a concave lens and convex lens modification 1 of a lighting section provided in an embodiment of the present utility model, illustrating a case where the concave lens and the convex lens of the lighting section are all provided as a concave lens or a convex lens for lighting;

fig. 14 is a sectional view of a concave lens and convex lens modification 2 of a lighting portion provided in an embodiment of the present utility model, in which a part of the concave lens and convex lens of the lighting portion are provided as a concave lens and a convex lens, respectively, and a part thereof is provided as a flat lens, respectively;

fig. 15 is a view showing the overall structure of a lighting device of modification 1 according to the embodiment of the present utility model;

fig. 16 is a view showing the overall structure of a lighting device of modification 2 according to the embodiment of the present utility model;

fig. 17 is a view showing the overall structure of a lighting device of modification 3 according to the embodiment of the present utility model;

fig. 18 is a diagram showing the overall structure of a lighting device according to modification 4 of the present embodiment;

fig. 19 is a view showing the overall structure of a lighting device of modification 5 according to the embodiment of the present utility model;

fig. 20 is a view showing the overall structure of a lighting device of modification 6 according to the embodiment of the present utility model;

fig. 21 is a view showing the overall structure of a lighting device according to variation 7 provided in the embodiment of the present utility model;

fig. 22 is a view showing the overall structure of a lighting device of modification 8 according to the embodiment of the present utility model;

fig. 23 is a view showing the overall structure of a lighting device of modification 9 according to the embodiment of the present utility model;

fig. 24 is a diagram showing the overall structure of a lighting device according to variation 10 provided by the embodiment of the present utility model;

fig. 25 is a view showing the overall structure of a lighting device of modification 11 according to the embodiment of the present utility model;

fig. 26 is a view showing the overall structure of the lighting device of modification 12 according to the embodiment of the present utility model;

in the figure: 1. a lighting part; 2. a transparent material; 3. a light transmitting portion; 4. and a protective plate.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

1. The embodiments are explained. In order to fully understand how the utility model may be embodied by those skilled in the art, this section is an illustrative embodiment in which the claims are presented for purposes of illustration.

As shown in fig. 1, a lighting device based on a combination of a flat lens, a concave lens and a convex lens provided by an embodiment of the present utility model has a plurality of lighting parts 1, wherein the lighting parts adopt natural light lighting devices based on a combination of a concave lens and a convex lens, the concave lens array is disposed at the outdoor side, and the convex lens array is disposed at the indoor side; and a light transmitting portion 3 provided between the plurality of lighting portions, the lighting device including: a light collecting region through which light is transmitted through the light collecting portion, and a light transmitting region through which light is transmitted through a light transmitting portion composed of a flat lens, the light collecting region being alternately arranged with the light transmitting region.

The embodiment of the utility model provides a device with good lighting effect, the surface structure of the device is of a common size or a micro size, the properties of the device are films, films and plates, and the device is made of inorganic ceramics, organic high polymers and fiber and nano composite materials with the transparency more than 50 percent, such as glass, polymethyl methacrylate, polycarbonate, styrene-methyl methacrylate copolymer and the like.

The utility model provides a natural light lighting device and a natural light lighting method based on a combination of a flat lens, a concave lens and a convex lens, which can make natural light incident from the device in daytime diffuse to each indoor corner, fully utilize the natural light to carry out indoor illumination, and simultaneously can make indoor personnel see outdoor scenery, thereby saving energy, reducing emission and improving the utilization rate of energy.

In order to solve the above problems, a lighting device of the present utility model has a plurality of lens lighting parts formed on the surface thereof for guiding light into a room, wherein the lenses of the lens lighting parts obstruct the visibility from the room, and a light transmitting part composed of flat lenses is provided between the lighting parts so as to allow the light to be viewed from the room through the light transmitting part.

An object of the present utility model is to provide a lighting device capable of viewing an outdoor scene while transmitting natural light to the indoor and presenting the outdoor scene.

The lighting part comprises a front ideal lens and a rear ideal lens which are respectively a concave lens array and a convex lens array, the concave lens array is used for collecting outdoor natural light, the convex lens array is used for refracting and deflecting the incident natural light into a room, the natural light which enters the room in the daytime is diffused into each corner of the room, the natural light is fully utilized for indoor illumination, energy conservation and emission reduction are realized, and the energy utilization rate is improved.

The light may be transmitted to the transparent material disposed on the indoor side through the two lens arrays disposed on the natural light side, or may be transmitted to the two lens arrays disposed on the indoor side through the transparent material array disposed on the natural light side, and preferably, the light may be transmitted through the concave lens array, the middle air and the convex lens array. More preferably, the light is transmitted by the concave lens array, the intermediate transparent material array and the convex lens array which are made of the same material, transmitted to the intermediate transparent material through the concave lens and then transmitted to the convex lens array,

the lighting part arranged from the lighting area adopts two ideal lenses in an array form based on a concave lens and convex lens combination, namely a concave lens array and a convex lens array, wherein the concave lens array is used for transmitting incident outdoor natural light, and the convex lens is used for transmitting the natural light of the concave lens indoors. The light may be transmitted to the transparent material disposed on the indoor side through the two lens arrays disposed on the outdoor side, or transmitted to the convex lens array through the concave lens to the intermediate transparent material, or transmitted to the two lens arrays disposed on the indoor side through the transparent material disposed on the outdoor side; the convex lens array is used for deflecting incident natural light to an indoor space after refraction, the number of the flat lenses, the concave lenses and the convex lenses is more than or equal to 1, the number of the flat lenses, the number of the concave lenses and the number of the convex lenses can be 1, 2 and 3, the distance between the flat lenses, the distance between the concave lenses and the distance between the convex lenses are more than or equal to 0, a certain value which is more than 0 can be taken, and the transparent material perspective of a lighting area is adjusted by adjusting the distance between the flat lenses, the distance between the concave lenses and the distance between the convex lenses, so that different requirements are met.

The lighting part arranged from the lighting area adopts an ideal lens based on a front array form and a rear array form of a concave lens and a convex lens, the ideal lens is respectively a concave lens array and a convex lens array, the concave lens and the convex lens can be alternatively arranged and are in array combination with a plane mirror surface, outdoor natural light can be efficiently collected and incident into indoor natural light through the lens mirror surface, and the plane lens of the light transmitting part is used for presenting outdoor scenery.

The light collecting region and the light transmitting region are arranged in a linear or curved stripe shape, a square shape or other non-periodic arbitrary pattern as viewed from the normal direction of the flat lens between the concave lens array and the convex lens array of the light collecting portion.

In the lighting device, the lighting part concave lens array faces to the incidence direction of natural light, and the concave lens surface and the incidence angle of the natural light form an acute angle.

The lighting part of the lighting device adopts an ideal lens based on a front array form and a rear array form of a flat lens, a concave lens and a convex lens, which are respectively a concave lens array and a convex lens array, the concave lens mirror surface and the convex lens mirror can be alternatively arranged to form an array combination by adopting a lens mirror surface and a plane mirror surface, outdoor scenery can be observed through the plane mirror surface indoors, and outdoor natural light can be efficiently collected through the curved mirror surface and incident into a window.

The focal length of the convex lens in the convex lens array of the lighting part in the lighting device is 1-5 times of that of the concave lens in the concave lens array.

The focal point of a single convex lens in the convex lens array of the lighting part is located at the center of a corresponding single complete concave lens in the concave lens array, so that light rays are diffused to an indoor space.

The focal point of a single convex lens in the convex lens array of the lighting part is located behind the focal point of a corresponding single complete concave lens in the concave lens array, so that light rays are diffused to an indoor space.

The size of the convex lens array of the lighting part is not equal to that of the concave lens array unit, and the size of the convex lens meets the requirement that the divergent light beams of the corresponding concave lens are all collected and converged.

The convex lens array of the lighting part is a partial lens array, and the unit structure of the convex lens array is a light passing part of a single convex lens.

The convex lens array and the concave lens array of the lighting part are arranged in a staggered way, and the staggered amount is the clear aperture size of a single concave lens of the convex lens array.

The size of the convex lens array of the lighting part is different from that of the concave lens array unit, and the size of the convex lens is equal to that of the clear aperture of a single convex lens.

The light collecting region and the light transmitting region may be arranged in a linear stripe or curved stripe, a checkered pattern, or a non-periodic array, or the like, as viewed from the normal direction of the flat lens array.

The lighting areas or light transmitting areas may also be irregularly arranged in a circular, polygonal, elliptical or other special shape, etc. as viewed from the normal direction of the flat lens array.

The light transmittance of the light transmitting portion may be not more than the light collecting portion transmittance.

May further include: and a protective plate which is positioned outside or inside the transparent material and has light transmittance, wherein the light collecting plate is fixed to the light collecting part and the light transmitting part in the light transmission region.

May further include: and a protective plate which is positioned on the inner side and the outer side of the transparent material and has light transmittance, wherein the light collecting plate is fixed on the light collecting part and the light transmittance part.

The total thickness of the light-transmitting portion may be not smaller than the total thickness of the light-collecting portion; preferably, the total thickness of the light transmitting portion is equal to the total thickness of the light collecting portion.

The lighting device may have a plurality of lighting areas extending in a curved shape on the inner side or the outer side or the inner and outer sides of the transparent material, and preferably the lighting device may have a plurality of lighting areas extending in a straight shape on the inner side or the outer side or the inner and outer sides of the transparent material.

The lighting device may further include: and a light diffusion unit that diffuses light emitted from the plurality of lighting units or light incident on the plurality of lighting units.

The lighting device may further include: the light diffusion portion forms a light diffusion region including a lighting region and being wider than the lighting region when viewed from a normal direction of the flat lens.

The lighting device may include a transparent plate provided inside or outside or both inside and outside the lighting device.

Further, the lighting device according to an embodiment of the present utility model may further include: a plurality of lighting slats of elongated or square shape, the plurality of lighting slats comprising: a plurality of lighting slats of elongated or square shape, the plurality of lighting slats comprising: the light-transmitting member is provided with a plurality of light-collecting portions, and at least one direction of the light-transmitting portion is alternately arranged.

The natural light lighting device based on the combination of the flat lens, the concave lens and the convex lens can realize the composition structure of the lighting device with the functions, which can be a visible structure which can be distinguished by human eyes, and preferably adopts a microstructure which cannot be distinguished by human eyes.

The natural light lighting device based on the combination of the flat lens, the concave lens and the convex lens can be used by making a lighting film attached to other transparent materials, and is preferably an independent lighting device with a plurality of lighting parts, transparent materials with light transmittance and a plurality of light transmission parts made of the same material.

The utility model provides a natural light lighting device and a natural light lighting method based on a combination of a flat lens, a concave lens and a convex lens, which can efficiently collect natural light entering a window, disperse the light to all directions indoors, fully utilize the natural light to perform indoor lighting, save energy, reduce emission, improve energy utilization rate and enable outdoor scenes to be visible.

In order to prove the inventive and technical value of the technical solution of the present utility model, this section is an application example on specific products or related technologies of the claim technical solution.

The utility model can be used as an accessory for building windows and curtain walls, and can also be directly used as curtains, blinds and indoor partitions.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model.

Claims (10)

1. A lighting device based on a combination of a flat lens, a concave lens and a convex lens, characterized in that the lighting device based on a combination of a flat lens, a concave lens and a convex lens comprises:

a plurality of lighting parts and a plurality of light-transmitting parts;

the lighting part consists of a concave lens array arranged on the natural light incidence side and a convex lens array arranged on the natural light emergence side;

the light-transmitting part is a flat lens array and is arranged among the plurality of lighting parts;

the light collecting regions transmitted by the plurality of light collecting portions and the light transmitting regions transmitted by the plurality of light transmitting portions are alternately arranged.

2. The lighting device based on the combination of the flat lens, the concave lens and the convex lens as claimed in claim 1, wherein the focal point of the single convex lens in the convex lens array of the lighting part is located at the center of the corresponding single concave lens in the concave lens array, so that the light is diffused to the indoor space.

3. The lighting device based on the combination of the flat lens, the concave lens and the convex lens as claimed in claim 1, wherein the focal point of the single convex lens in the convex lens array of the lighting part is located behind the focal point of the corresponding single concave lens in the concave lens array, so that the light is diffused to the indoor space.

4. The lighting device based on the combination of a flat lens, a concave lens and a convex lens as claimed in claim 1, wherein the convex lens array of the lighting part is not equal to the concave lens array unit in size, and the convex lens size satisfies the collection and convergence of the corresponding concave lens divergent light beams;

the convex lens array of the lighting part is a partial lens array, and the unit structure of the convex lens array is a light passing part of a single convex lens;

the convex lens array of the lighting part and the concave lens array are arranged in a staggered mode, and the staggered quantity is the clear aperture size of a single concave lens of the convex lens array.

5. The lighting device based on the combination of the flat lens, the concave lens and the convex lens as claimed in claim 1, wherein a transparent material is arranged between the concave lens array and the convex lens array, and the transparent material is the same as the lighting part and the light transmitting part;

the transparent material is inorganic ceramic and organic high polymer with visible light transparency more than 85 percent and fiber and nano composite material.

6. The lighting device of claim 1, wherein the lighting areas and the light-transmitting areas are arranged in a linear or curved stripe-like configuration, a checkered configuration, or other non-periodic arbitrary pattern in the normal direction of the flat lenses between the concave lens array and the convex lens array of the lighting section.

7. The lighting device based on the combination of the flat lens, the concave lens and the convex lens as claimed in claim 1, wherein the outer side or the inner and outer sides of the flat lens are provided with a protection plate, the protection plate is transparent or a diffuse reflection part for the lighting part, and the lighting part and the light transmission part are arranged at one side or the middle of the protection plate.

8. The lighting device based on the combination of the flat lens, the concave lens and the convex lens according to claim 1, further comprising a light diffusing portion for diffusing light emitted from the plurality of belonging lighting portions or light incident to the plurality of lighting portions;

the light diffusion portion forms a light diffusion region including a lighting region and diffusing more than the lighting region from a normal direction of the flat lens.

9. The lighting device based on a combination of a flat lens, a concave lens and a convex lens as claimed in claim 1, wherein a plurality of lighting slats of an elongated shape or a square shape, the plurality of lighting slats comprising: the strip having a plurality of the light collecting portions and a plurality of the light transmitting portions is alternately arranged in at least one direction of the inner side or the outer side or the inner and outer sides of the transparent material.

10. A flat lens, concave lens and convex lens combination-based lighting method for implementing the flat lens, concave lens and convex lens combination-based lighting device of any one of claims 1 to 9, characterized in that the flat lens, concave lens and convex lens combination-based lighting method comprises:

step one, a concave lens array of a lighting part is arranged on the outer side of an outdoor and used for transmitting incident outdoor natural light so as to lead the natural light to be dispersed,

and secondly, the convex lens array is arranged on the indoor side and used for conducting natural light of the concave lens in the room, so that the light is focused and then diverged into the room.