CN116123474A - Lighting device and method based on flat lens, fresnel 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 method based on a flat lens, a Fresnel 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 first Fresnel concave lens array, a second Fresnel convex lens array and a light-transmitting material array; the light-transmitting part is a flat lens array and is arranged among the plurality of lighting parts; the light collecting regions through which the plurality of light collecting portions transmit and the light transmitting regions through which the plurality of light transmitting portions transmit are alternately arranged. According to the utility model, natural light incident from the window in daytime is dispersed to each part in the house, indoor lighting is carried out by fully utilizing the natural light, and meanwhile, outdoor scenery can be presented, namely, outdoor scenery can be seen by indoor personnel, and the visual image of the outdoor scenery is not shifted or is biased to be still in the position of the scene in situ; energy conservation and emission reduction can be realized, and the energy utilization rate is improved; environmental protection and no pollution, and no energy supply is needed during the use.

Description

Lighting device and method based on flat lens, fresnel 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 method based on a combination of a flat lens, a Fresnel 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 flat lens, a Fresnel concave lens and a convex lens.

The utility model is realized in such a way that a lighting device based on a flat lens, a Fresnel 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 first Fresnel concave lens array, a second Fresnel convex lens array and a light-transmitting material array;

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

the light collecting regions through which the plurality of light collecting portions transmit and the light transmitting regions through which the plurality of light transmitting portions transmit are alternately arranged.

Further, the focal point of the single Fresnel convex lens of the second Fresnel convex lens array is located at the center of the single complete Fresnel concave lens corresponding to the first Fresnel concave lens array, so that light rays are diffused to an indoor space.

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

Further, the second Fresnel convex lens array of the lighting part is unequal to the first Fresnel concave lens array unit in size, and the size of the second Fresnel convex lens array meets the requirement that divergent light beams corresponding to the first Fresnel concave lens are collected and converged;

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

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

The lighting part is arranged on the inner side or the outer side or the inner side and the outer side of the light-transmitting material array, and the light-transmitting material array is made of transparent materials which are 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 is fiber and nano composite material.

Further, 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 from the normal direction of the flat lens between the first fresnel concave lens array and the fresnel convex lens array of the light collecting portion.

The light-transmitting lens is characterized by further comprising a protective plate, wherein the protective plate is transparent or is used for diffuse reflection of the light-collecting part, the light-collecting part and the light-transmitting part are positioned on the outer side or the inner side of the flat lens and have light transmittance, and the light-collecting part and the light-transmitting part can be 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 on the plurality of the lighting units;

the light diffusion portion forms a light diffusion region including the lighting region and diffusing from the lighting region from a direction of a normal to a plane lens of the lighting device.

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 flat lens, a fresnel concave lens and a convex lens of a lighting device based on a flat lens, a fresnel concave lens and a convex lens, the lighting method based on a flat lens, a fresnel concave lens and a convex lens comprising:

the first Fresnel concave lens array of the lighting part is arranged on the outdoor side of the natural light incident surface and used for conducting the incident outdoor natural light so as to lead the natural light to be dispersed,

and step two, the second Fresnel convex lens array of the lighting part is arranged on the indoor side of the natural light emergent surface. The first Fresnel concave lens is used for transmitting natural light of the first Fresnel concave lens in a 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:

according to the natural light lighting device, natural light incident from a window in the daytime can be dispersed to all parts in a room, indoor lighting can be performed by fully utilizing the natural light, and outdoor scenery can be displayed, namely outdoor scenery can be seen by indoor personnel, and the visual image of the outdoor scenery is not shifted or is 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 natural light entering the window, disperse the light to all directions indoors, fully utilize the natural light to carry out indoor lighting, save energy and reduce emission, improve the energy utilization rate and make outdoor scenes visible.

Drawings

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

FIG. 2 is a schematic diagram of the structure of a Fresnel convex lens and a Fresnel concave lens according to an embodiment of the present utility model;

fig. 3 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. 4 is an enlarged partial cross-sectional view of FIG. 3 in accordance with an embodiment of the present utility model;

fig. 5 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. 6 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. 7 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 air medium;

fig. 8 is a sectional view of an arrangement variation example 1 of a first fresnel concave lens and a second fresnel convex lens of a lighting section provided by an embodiment of the present utility model;

fig. 9 is a sectional view of a variation example 2 of the arrangement of the first fresnel concave lens and the second fresnel convex lens of the lighting section provided by the embodiment of the present utility model;

fig. 10 is a sectional view of an arrangement variation example 3 of a first fresnel concave lens and a second fresnel convex lens of a lighting section provided by an embodiment of the present utility model;

fig. 11 is a cross-sectional view of a variation example 4 of the arrangement of the first fresnel concave lens and the second fresnel convex lens of the lighting section provided by the embodiment of the present utility model;

fig. 12 is a cross-sectional view of a variation example 5 of the arrangement of the first fresnel concave lens and the second fresnel convex lens of the lighting section provided by the embodiment of the present utility model, in which the number N1, N2, N3 of convex lenses is 1 or more and the lens distances L1, L2, L3 are 0 or more;

fig. 13 is a cross-sectional view of a variation example 6 of the arrangement of the first fresnel concave lens and the second fresnel convex lens of the lighting section provided by the embodiment of the present utility model, showing that the lens distances L1, L2, L3 may be different from example 5;

fig. 14 is a cross-sectional view of a first fresnel concave lens and a second fresnel convex lens of the lighting section according to the 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. 15 is a cross-sectional view of a first fresnel concave lens and a second fresnel convex lens modification 2 of a lighting section provided in an embodiment of the present utility model, in which a part of the lighting section fresnel concave lens and fresnel convex lens are respectively provided as fresnel concave lenses or fresnel convex lenses, and a part thereof are respectively provided as flat lenses;

fig. 16 is a view showing the overall structure of a lighting device of modification 1 according to the embodiment of the present utility model;

fig. 17 is a view showing the overall structure of a lighting device according to variation 2 provided in the embodiment of the present utility model;

fig. 18 is a diagram showing the overall structure of a lighting device according to variation 3 provided in the embodiment of the present utility model;

fig. 19 is a view showing the overall structure of a lighting device according to modification 4 of the present embodiment;

fig. 20 is a view showing the overall structure of a lighting device of modification 5 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 6 provided in the embodiment of the present utility model;

fig. 22 is a diagram showing the overall structure of a lighting device according to variation 7 provided by the embodiment of the present utility model;

fig. 23 is a view showing the overall structure of a lighting device of modification 8 according to the embodiment of the present utility model;

fig. 24 is a view showing the overall structure of a lighting device of modification 9 according to the embodiment of the present utility model;

fig. 25 is a view showing the overall structure of a lighting device according to a modification 10 of the present utility model;

fig. 26 is a view showing the overall structure of the lighting device of modification 11 according to the embodiment of the present utility model;

fig. 27 is a view showing the overall structure of a 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, the lighting device based on a flat lens, a fresnel concave lens and a convex lens provided by the embodiment of the utility model is provided with a plurality of lighting parts 1, wherein the lighting parts 1 adopt natural light lighting devices based on a combination of a first fresnel concave lens and a second fresnel convex lens, the first fresnel concave lens array is arranged on the outdoor side, and the second fresnel convex lens array is arranged on the indoor side; and a light transmitting portion 3 provided between the plurality of lighting portions, the lighting device including: a lighting area through which light is transmitted through the lighting portion, and a light transmission area through which light is transmitted through the light transmitting portion composed of the flat lens, the lighting area and the light transmission area being alternately arranged.

The lighting part comprises a front ideal lens and a rear ideal lens which are respectively a first Fresnel concave lens array and a second Fresnel convex lens array, the first Fresnel concave lens array is used for collecting outdoor natural light, the second Fresnel convex lens array is used for refracting and deflecting the incident natural light into a room, the natural light in the incident room is diffused into each corner of the room in the daytime, 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 can be transmitted to the transparent material arranged on the indoor side by the two lens arrays arranged on the natural light side, or can be transmitted to the two lens arrays arranged on the indoor side by the transparent material array arranged on the natural light side, preferably, the light is transmitted by the first Fresnel concave lens array, the middle air medium and the second Fresnel convex lens array, more preferably, the light is transmitted by the first Fresnel concave lens array, the middle transparent material array and the second Fresnel convex lens array which are made of the same material, and is transmitted to the middle transparent material by the first Fresnel concave lens array and then transmitted to the second Fresnel convex lens array,

preferably, in the lighting device, the first fresnel concave lens array of the lighting part faces towards the incident direction of the natural light, and the first fresnel concave lens array forms an acute angle with the incident natural light.

Preferably, the lighting part in the lighting device adopts an ideal lens based on a front array form and a rear array form of a flat lens, a Fresnel concave lens and a Fresnel convex lens combination, the ideal lens is a first Fresnel concave lens array and a second Fresnel convex lens array respectively, the first Fresnel concave lens mirror surface and the second Fresnel convex lens mirror can be alternately arranged to form an array combination by adopting lens mirror surfaces and plane mirror surfaces, outdoor sceneries can be observed through the plane mirror surfaces indoors, and outdoor natural light can be efficiently collected through curved mirror surfaces to enter natural light of a window.

Preferably, the focal length of a single Fresnel convex lens in the second Fresnel convex lens array of the lighting part in the lighting device is 1-5 times that of a single concave lens in the first Fresnel concave lens array.

Preferably, the focal point of a single fresnel convex lens in the second fresnel convex lens array of the lighting part falls at the center of a corresponding single complete fresnel concave lens in the first fresnel concave lens array, so that light rays are diffused to an indoor space.

Preferably, the focal point of a single fresnel convex lens in the second fresnel convex lens array of the lighting part falls behind the focal point of a corresponding single complete fresnel concave lens in the first fresnel concave lens array, so that light rays are diffused into the indoor space.

Preferably, the first fresnel concave lens array and the second fresnel convex lens array of the lighting part are different in size, and the second fresnel convex lens is different in size, so that all divergent light beams corresponding to the first fresnel concave lens are collected and converged.

Preferably, the second fresnel convex lens array of the lighting part is a partial lens array, and the unit structure of the second fresnel convex lens array is the light transmitting part of a single convex lens in the second fresnel convex lens array.

Preferably, the first fresnel concave lens array and the second fresnel convex lens array of the lighting part are arranged in a staggered manner, and the staggered amount is the clear aperture size of a single convex lens in the second fresnel convex lens array.

In the lighting device, the lighting area and the light transmitting area may be arranged in a linear stripe or curved stripe, a checkered pattern, or a non-periodic array, as viewed from the normal direction of the flat lens array.

Preferably, in the lighting device, the lighting area or the light-transmitting area may be irregularly arranged in a circular shape, a polygonal shape, an elliptical shape or other special shapes, etc. when viewed from the normal direction of the flat lens array.

In the lighting device, the light transmittance of the light transmitting portion may be not more than the light transmittance of the lighting portion.

Preferably, in the lighting device, the lighting device 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.

Preferably, in the lighting device, the lighting device 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.

Preferably, in the lighting device, the total thickness of the light-transmitting portion may be not smaller than the total thickness of the lighting 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.

Preferably, in the lighting device, 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.

Preferably, in the lighting device, 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.

Preferably, the lighting device may include a transparent plate provided on the inner side or the outer side or the inner and outer sides of the lighting device.

Preferably, the lighting device according to one 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 Fresnel concave lens and the Fresnel 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 Fresnel concave lens and the Fresnel 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 lighting part arranged from the lighting area is an ideal lens in two array forms based on the combination of a Fresnel concave lens and a Fresnel convex lens, and the ideal lens is a first Fresnel concave lens array and a second Fresnel convex lens array respectively, wherein the first Fresnel concave lens array is used for diverging natural light emitted outdoors, and the Fresnel convex lens array is used for focusing and re-diverging the light of the first Fresnel concave lens array indoors. The light can be transmitted to the transparent material arranged on the indoor side through the two lens arrays arranged on the outdoor side, can be diffused to the middle transparent material through the first Fresnel concave lens and focused and diffused to the indoor side through the second Fresnel convex lens array, or can be transmitted to the two Fresnel lens arrays arranged on the indoor side through the transparent material array arranged on the outdoor side; the number of the flat lenses, the Fresnel concave lenses and the Fresnel convex lens combinations of the Fresnel convex lens array is more than or equal to 1, the distance among the flat lenses, the Fresnel concave lenses and the Fresnel convex lens combinations is more than or equal to 0, and the perspective rate of transparent materials in a lighting area is adjusted by adjusting the distance among the flat lenses, the Fresnel concave lenses and the Fresnel convex lens combinations, 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 first Fresnel concave lens and a second Fresnel convex lens, the first Fresnel concave lens array, the second Fresnel convex lens array and the plane mirror surface array are alternately arranged to form an array combination, outdoor natural light can efficiently collect natural light entering a room through the lens mirror surface of the lighting part, and the plane lens of the light transmitting part is used for presenting outdoor scenery.

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 device is characterized by being of a film, a thin film and a plate shape, 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.

According to the utility model, natural light incident from the device in daytime can be dispersed to each indoor corner, indoor illumination is performed by fully utilizing the natural light, indoor personnel can see outdoor sceneries, energy is saved, emission is reduced, and the energy utilization rate is improved.

In order to solve the above problems, a light transmitting portion composed of a flat lens is provided between the light collecting portions, and the light transmitting portion can be seen from the room.

The utility model provides a lighting device capable of transmitting outdoor scenery, which can transmit natural light to indoor and simultaneously can present outdoor scenery.

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. The utility model provides a lighting device based on flat lens, fresnel concave lens and convex lens, its characterized in that, lighting device based on flat lens, fresnel concave lens and convex lens includes:

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

the lighting part consists of a first Fresnel concave lens array, a second Fresnel convex lens array and a light-transmitting material array;

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

the light collecting regions through which the plurality of light collecting portions transmit and the light transmitting regions through which the plurality of light transmitting portions transmit are alternately arranged.

2. The lighting device of claim 1, wherein the focal point of the single fresnel convex lens of the second fresnel convex lens array is located at the center of the single complete fresnel concave lens corresponding to the first fresnel concave lens array, so that the light is diffused into the indoor space.

3. The lighting device of claim 1, wherein the focal point of a single convex lens in the second fresnel convex lens array of the lighting part is located behind the focal point of a single complete fresnel lens corresponding to the first fresnel concave lens array, so that the light is diffused into the indoor space.

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

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

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

5. The lighting device based on the flat lens, the Fresnel concave lens and the convex lens according to claim 1, wherein the lighting part is arranged on the inner side or the outer side or the inner and the outer sides of a light-transmitting material array, and the light-transmitting material array is made of transparent materials which are 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 is 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, a square or other non-periodic arbitrary pattern from the normal direction of the flat lens between the first fresnel concave lens array and the fresnel convex lens array of the lighting section.

7. The lighting device of claim 1, further comprising a protective plate, wherein the protective plate is transparent or is a diffuse reflection part for the lighting part, is positioned on the outer side or the inner side of the flat lens, has light transmittance, and the lighting part and the light transmittance can be arranged on one side or the middle of the protective plate.

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

the light diffusion portion forms a light diffusion region including the lighting region and diffusing from the lighting region from a direction of a normal to a plane lens of the lighting device.

9. The flat lens, fresnel concave lens and convex lens based lighting device of claim 1, wherein the plurality of lighting slats of an elongated shape or a square shape comprises: 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, fresnel concave lens and convex lens based lighting method for implementing the flat lens, fresnel concave lens and convex lens based lighting device of any one of claims 1 to 9, characterized in that the flat lens, fresnel concave lens and convex lens based lighting method comprises:

the first Fresnel concave lens array of the lighting part is arranged on the outdoor side of the natural light incident surface and used for conducting the incident outdoor natural light so as to lead the natural light to be dispersed,

and step two, the second Fresnel convex lens array of the lighting part is arranged on the indoor side of the natural light emergent surface. The first Fresnel concave lens is used for transmitting natural light of the first Fresnel concave lens in a room, so that the light is focused and then diverged into the room.

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