Illumination device, illumination system and illumination method for breeding

Abstract

The invention relates to an illumination device, an illumination system and an illumination method for breeding. The illumination device comprises a light-emitting plate, a light-emitting plate and a light-emitting lamp, wherein the light-emitting plate is provided with light-emitting lamp beads capable of emitting first light; the light conversion plate is provided with a first position opposite to the light-emitting plate and a second position far away from the light-emitting plate, and when the light conversion plate is located at the first position, the light conversion plate is configured to be capable of exciting second light with the wavelength larger than that of the first light under irradiation of the first light, the light conversion plate is controlled to be converted between the first position and the second position, so that the first light and the mixed light of the first light and the second light selectively irradiate on the cultivated organism. By controlling the light conversion plate to be converted between the first position and the second position, the spectrum of irradiation light can be conveniently and accurately changed, the illumination requirements of organisms in different growth periods are met, and the survival rate and growth rate of cultivation are increased.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting devices, and specifically to a lighting device, a lighting system, and a lighting method for aquaculture. Background Art

[0002] A lighting apparatus (i.e., Lighting Apparatus) refers to a device or system that can generate, regulate, and output light, which can provide the required lighting conditions for a specific environment or target, and is widely used in many fields such as aquaculture, ocean engineering, modern agriculture, plant factories, biomedicine, etc.

[0003] Taking the aquaculture field as an example, the lighting apparatus can provide suitable lighting conditions for organisms (such as aquatic products like fish, shrimps, crabs, etc.), optimize the aquaculture environment, promote their growth, development, and reproduction, and help increase production and improve quality. Currently, the lighting apparatus mainly includes various types such as fluorescent lamps, high-pressure sodium lamps, metal halide lamps, and LED lamps. Among them, the fluorescent lamp has the characteristics of high luminous efficiency and long lifespan, but the spectral tunability is poor; the high-pressure sodium lamp and the metal halide lamp are suitable for large-scale farms, but the energy consumption is high, and the spectral tunability is also poor; the LED lamp has the advantages of high luminous efficiency, long lifespan, and spectral tunability, and can provide light of a specific wavelength according to the growth needs of different organisms to promote the growth of organisms.

[0004] The prior art usually adopts the following two methods to adjust the spectrum of the LED lamp: one is to encapsulate phosphors of different colors in the LED lamp beads, and when the light emitted by the LED lamp beads passes through the phosphors, part of it is absorbed and converted into light of other wavelengths; the other is to prepare LED light-emitting chips of different colors. However, encapsulating phosphors in the LED lamp beads will cause the heat generation of the LED lamp to increase, which will not only reduce the service life of the phosphors, but also cause color deviation. In addition, the full width at half maximum (i.e., Full Width at Half Maximum, abbreviated as FWHM) of the emitted light of the phosphors is relatively wide, and precise spectral regulation cannot be achieved, resulting in a low utilization rate of light of a specific wavelength by organisms. In addition, only the blue light of the LED light-emitting chip has a good emission half-width and service life, which also cannot meet the actual needs of aquaculture.

[0005] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0006] In order to solve or to a certain extent improve the technical problem in the prior art that it is difficult to accurately adjust the spectrum of the lighting device for aquaculture, the present invention provides a lighting device for aquaculture. The lighting device includes: a light-emitting plate provided with light-emitting beads capable of emitting a first light; and a light conversion plate having a first position opposite to the light-emitting plate and a second position away from the light-emitting plate, and when in the first position, the light conversion plate is configured to be able to excite a second light with a wavelength greater than that of the first light under the irradiation of the first light, wherein by controlling the conversion of the light conversion plate between the first position and the second position, the first light, the mixed light of the first light and the second light can be selectively irradiated on the organisms in aquaculture.

[0007] Those skilled in the art can understand that the lighting device for aquaculture of the present invention includes a light-emitting plate and a light conversion plate. Among them, light-emitting beads capable of emitting a first light are provided on the light-emitting plate. The light conversion plate has a first position opposite to the light-emitting plate and a second position away from the light-emitting plate. When in the first position, the first light emitted by the light-emitting plate irradiates on the light conversion plate, so that the light conversion plate can excite a second light with a wavelength greater than that of the first light. Therefore, by controlling the conversion of the light conversion plate between the first position and the second position, the first light or the mixed light of the first light and the second light can be timely selected to irradiate on the organisms in aquaculture, which can not only conveniently and accurately change the spectrum of the irradiated light, meet the lighting needs of organisms in different growth periods, improve the survival rate and growth rate of aquaculture, but also avoid the light conversion plate being always in an excited state, and improve the service life of the light conversion plate.

[0008] In a preferred technical solution of the above lighting device for aquaculture, the light-emitting beads are LED beads, and the wavelength range of the first light is 365nm - 460nm. LED beads have many advantages such as high luminous efficiency, low energy consumption, long service life, small volume, light weight, concentrated wavelength, and high color purity.

[0009] In a preferred technical solution of the above lighting device for aquaculture, a plurality of the LED beads are arranged on the light-emitting plate at intervals; and / or the output power of the LED beads is adjustable; and / or the light-emitting plate includes a control chip in communication connection with the LED beads. Arranging a plurality of LED beads on the light-emitting plate at intervals can improve the uniformity of the first light. Setting the output power of the LED beads to be adjustable can adjust its output power according to actual needs, and better meet the differentiated lighting needs of different organisms. Setting a control chip in communication connection with the LED beads on the light-emitting plate can conveniently control the turning on, turning off and output power of the LED beads, and improve the control accuracy.

[0010] In the preferred technical solution of the above-mentioned lighting device for aquaculture, the light conversion plate includes a substrate and quantum dots embedded in the substrate, wherein the quantum dots include at least one of green light quantum dots, yellow light quantum dots and red light quantum dots. Quantum dots have the quantum confinement effect. When blue light (or ultraviolet light) irradiates on the quantum dots, the quantum dots absorb the blue light (or ultraviolet light) illumination, and the internal electrons are excited to high energy levels. Subsequently, when the electrons transition back to low energy levels, they will release energy in the form of photons and emit light of specific wavelengths, such as green light, yellow light and red light, thereby enriching the wavelength range of the second light.

[0011] In the preferred technical solution of the above-mentioned lighting device for aquaculture, the mass ratio between the green light quantum dots and the substrate is greater than or equal to 0.125% and less than or equal to 2%; and / or the mass ratio between the yellow light quantum dots and the substrate is greater than or equal to 0.125% and less than or equal to 2%; and / or the mass ratio between the red light quantum dots and the substrate is greater than or equal to 0.125% and less than or equal to 2%. Through the above settings, appropriate addition amounts of each quantum dot can be ensured, guaranteeing the luminous efficiency and luminous intensity of the second light.

[0012] In the preferred technical solution of the above-mentioned lighting device for aquaculture, the green light quantum dots, the yellow light quantum dots and the red light quantum dots are all arranged in the same substrate. Arranging the green light quantum dots, the yellow light quantum dots and the red light quantum dots in the same substrate can not only simplify the complexity of components and manufacturing costs, but also better perform optical coupling with the first light, improve the luminous efficiency and reduce energy consumption.

[0013] In the preferred technical solution of the above-mentioned lighting device for aquaculture, the light conversion plate includes at least three substrates, and one corresponding to each of the green light quantum dots, the yellow light quantum dots and the red light quantum dots is respectively provided in at least three substrates. Arranging the green light quantum dots, the yellow light quantum dots and the red light quantum dots on the corresponding substrates can reduce the interference between different quantum dots, improve the flexibility of manufacturing and enhance the stability of the system.

[0014] In the preferred technical solution of the above-mentioned lighting device for aquaculture, the wavelength range of the second light emitted by the green quantum dots is 510 nm - 550 nm; and / or the wavelength range of the second light emitted by the yellow quantum dots is 560 nm - 600 nm; and / or the wavelength range of the second light emitted by the red quantum dots is 610 nm - 650 nm; and / or the green quantum dots, the yellow quantum dots and the red quantum dots are made of the same material. Through the above settings, the second light can have an appropriate wavelength range to meet the different lighting needs of different organisms. In addition, the green quantum dots, yellow quantum dots and red quantum dots are selected to be made of the same material, which can simplify the processing technology and reduce the performance differences caused by material differences.

[0015] In the preferred technical solution of the above-mentioned lighting device for aquaculture, the substrate is made of PS or PC, and the quantum dots are made of CdTe, CdSe, InP, InAs, CsPbBr3 or CsPbBr x / I 3-x 。

[0016] In the preferred technical solution of the above-mentioned lighting device for aquaculture, the lighting device further includes a robotic arm for driving the light conversion plate to switch between the first position and the second position. The setting of the robotic arm can conveniently control the switching of the light conversion plate between the first position and the second position.

[0017] To solve or improve to a certain extent the technical problem that the lighting device for aquaculture in the prior art is difficult to accurately adjust the spectrum, the present invention provides an illumination system. The illumination system includes: at least one lighting device according to the above; and a photovoltaic panel, the photovoltaic panel is electrically connected to the light-emitting panel of the lighting device. Therefore, the illumination system of the present invention can conveniently and accurately change the spectrum of the irradiated light, meet the lighting needs of organisms at different growth stages, and improve the survival rate and growth rate of aquaculture. In addition, the setting of the photovoltaic panel can conveniently convert solar energy into electrical energy, thereby providing low-cost and clean energy for the lighting device.

[0018] In the preferred technical solution of the above illumination system, the illumination system further includes a storage battery electrically connected to the photovoltaic panel, and the storage battery is connected in parallel with the lighting device. The setting of the storage battery can store the surplus electrical energy generated by the photovoltaic panel to better provide electrical energy for the lighting device or other electrical equipment.

[0019] To solve or to a certain extent improve the technical problem in the prior art that it is difficult to accurately adjust the spectrum of the lighting device for aquaculture, the present invention provides a lighting method. The lighting method uses the lighting device for aquaculture described in any one of the above or the lighting system described in any one of the above, and the lighting method includes: obtaining the growth period of the organisms being cultured; based on the growth period, selectively controlling the lighting device to irradiate the organisms with the first light or a mixed light of the first light and the second light, wherein the wavelength of the second light is greater than the wavelength of the first light. Therefore, the lighting method of the present invention can flexibly irradiate light of different wavelengths according to the growth period of the organisms being cultured, meet the lighting needs of the organisms in different growth periods, and improve the survival rate and growth rate of aquaculture.

[0020] In a preferred technical solution of the above lighting method, the organisms are aquatic products, vegetables or fruits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, in which:

[0022] Figure 1 is a schematic structural diagram of the first embodiment of the lighting device for aquaculture of the present invention;

[0023] Figure 2 is a schematic structural diagram of the second embodiment of the lighting device for aquaculture of the present invention;

[0024] Figure 3 is a schematic structural diagram of the embodiment of the lighting system of the present invention;

[0025] Figure 4 is a schematic flow diagram of the embodiment of the lighting method of the present invention.

[0026] LIST OF REFERENCE NUMERALS:

[0027] 1. Lighting system; 10. Lighting device; 11. Light-emitting panel; 111. LED lamp beads; 12. Light conversion panel; 12a. First light conversion panel; 12b. Second light conversion panel; 12c. Third light conversion panel; 121. Substrate; 122. Quantum dots; 1221. Green light quantum dots; 1222. Yellow light quantum dots; 1223. Red light quantum dots; 13. Robot arm; 20. Photovoltaic panel; 30. Energy storage battery. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0029] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0030] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] In order to solve or to a certain extent improve the technical problem that it is difficult to accurately adjust the spectrum of the lighting device 10 for aquaculture in the prior art, the present invention provides a lighting device 10 for aquaculture. The lighting device 10 includes: a light-emitting panel 11, on which light-emitting lamp beads capable of emitting first light are provided; and a light conversion panel 12, the light conversion panel 12 having a first position opposite to the light-emitting panel 11 and a second position away from the light-emitting panel 11, and when in the first position, the light conversion panel 12 is configured to be able to excite second light with a wavelength greater than the first light under the irradiation of the first light. Among them, by controlling the conversion of the light conversion panel 12 between the first position I and the second position II, the mixed light of the first light, the first light and the second light can be selectively irradiated on the organisms in aquaculture.

[0032] Figure 1 is a schematic structural diagram of the first embodiment of the lighting device for aquaculture of the present invention. As Figure 1As shown, in one or more embodiments, the lighting device 10 of the present invention includes a light-emitting plate 11 and a light conversion plate 12. Among them, the light-emitting plate 11 has a plate-shaped body with a substantially rectangular, square, circular or other suitable shape. The plate-shaped body can be processed by an injection molding process using PS (i.e., polystyrene), PC (polycarbonate) or other suitable resin materials, so as to have good mechanical properties, heat resistance and corrosion resistance. Light-emitting lamp beads are provided on the light-emitting plate 11. When the light-emitting lamp beads are powered on, they can emit first light. In one or more embodiments, the light-emitting lamp beads are LED lamp beads 111, which have many advantages such as high luminous efficiency, low energy consumption, long service life, small size, light weight, concentrated wavelength, and high color purity. Alternatively, the light-emitting lamp beads can also be set as OLED lamp beads or other suitable types. In one or more embodiments, the wavelength range of the first light is 365nm - 460nm. For example, 365nm, 370nm, 380nm, 390nm, 400nm, 410nm, 420nm, 430nm, 440nm, 450nm, 460nm, etc. In one or more embodiments, 7 LED lamp beads 111 are arranged at intervals on the light-emitting plate 11. Alternatively, the number of LED lamp beads 111 can also be set to other suitable numbers more or less than 7, such as 6, 8, etc. The setting of multiple LED lamp beads 111 can improve the uniformity of the first light. In one or more embodiments, the output power of the LED lamp beads 111 is adjustable to better meet the different lighting needs of different organisms. The output power of the LED lamp beads 111 can be achieved by adjusting the forward current or by using pulse width modulation dimming and other methods. In one or more embodiments, the light-emitting plate 11 further includes a control chip (not shown in the figure) that forms a communication connection with the LED lamp beads 111, so as to conveniently control the turning on, turning off and output power of the LED lamp beads 111 and provide control accuracy.

[0033] As Figure 1 shown, in one or more embodiments, the light conversion plate 12 has a first position I opposite to the light-emitting plate 11 and a second position II far from the light-emitting plate 11. When the light conversion plate 12 is in the first position, the light conversion plate 12 can be excited to emit second light under the irradiation of the first light. Among them, the wavelength of the second light is greater than the wavelength of the first light. In this way, by controlling the conversion of the light conversion plate 12 between the first position I and the second position II, the first light or the second light can be flexibly selected to irradiate on the cultured organisms, so as to accurately change the spectrum of the irradiated light, meet the lighting needs of the organisms in different growth periods, and improve the survival rate and growth rate of the culture. In addition, when not needed, the light conversion plate 12 can be switched to the second position II far from the light-emitting plate 11, which can avoid the light conversion plate 12 being always in the excited state and improve the service life of the light conversion plate 12.

[0034] Continue to refer to Figure 1 , in one or more embodiments, the light conversion plate 12 includes a substrate 121 and quantum dots 122 embedded in the substrate 121. The substrate 121 can be rectangular, square, circular or other suitable shapes. The material of the substrate 121 can be, but is not limited to, PS or PC. The material of the quantum dots 122 includes, but is not limited to, CdTe (i.e., cadmium telluride), CdSe (i.e., cadmium selenide), InP (i.e., indium phosphide), InAs (i.e., indium arsenide), CsPbBr3 (i.e., an inorganic perovskite composed of cesium, lead and bromine elements) or CsPbBr x / I 3-x (i.e., a mixed halide perovskite composed of cesium, lead, bromine and iodine elements), etc. The quantum dots 122 can be embedded in the substrate 121 by a melt coextrusion process or other suitable methods. The quantum dots 122 include at least one of green light quantum dots 1221, yellow light quantum dots 1222 and red light quantum dots 1223. In one or more embodiments, the wavelength range of the second light emitted by the green light quantum dots 1221 is 510nm - 550nm, for example, 510nm, 520nm, 530nm, 540nm, 550nm, etc. In one or more embodiments, the wavelength range of the second light emitted by the yellow light quantum dots 1222 is 560nm - 600nm, for example, 560nm, 570nm, 580nm, 590nm, 600nm, etc. In one or more embodiments, the wavelength range of the second light emitted by the red light quantum dots 1223 is 610nm - 650nm, for example, 610nm, 620nm, 630nm, 640nm, 650nm, etc. In one or more embodiments, the materials of the green light quantum dots 1221, yellow light quantum dots 1222 and red light quantum dots 1223 are the same, which can simplify the processing technology and reduce the performance differences caused by material differences. When the same material is used, the green light quantum dots 1221, yellow light quantum dots 1222 and red light quantum dots 1223 can be prepared by changing the particle size. Specifically, the particle size of the yellow light quantum dots 1222 is larger than that of the green light quantum dots 1221 and smaller than that of the red light quantum dots 1223. In one or more embodiments, the mass ratio between the green light quantum dots 1221 and the substrate 121 is greater than or equal to 0.125% and less than or equal to 2%. In one or more embodiments, the mass ratio between the yellow light quantum dots 1222 and the substrate 121 is greater than or equal to 0.125% and less than or equal to 2%. In one or more embodiments, the mass ratio between the red light quantum dots 1223 and the substrate 121 is greater than or equal to 0.125% and less than or equal to 2%. Through the above settings, appropriate addition amounts of the respective quantum dots 122 can be obtained, ensuring the luminous efficiency and luminous intensity of the second light.

[0035] Continue to refer to Figure 1, in one or more embodiments, the green quantum dots 1221, yellow quantum dots 1222, and red quantum dots 1223 are all arranged within the same substrate 121. In this way, not only can the complexity and manufacturing cost of components be simplified, but also better optical coupling with the first light can be achieved, improving the luminous efficiency and reducing energy consumption.

[0036] Continue to refer to Figure 1 , in one or more embodiments, the lighting device 10 of the present invention further includes a robotic arm 13 for driving the light conversion plate 12 to switch between a first position and a second position. The specific structure of the robotic arm 13 is not limited, as long as it can conveniently control the light conversion plate 12 to switch between the first position and the second position. For example, the robotic arm 13 includes a driving motor and a lead screw connected to the driving motor, and one end of the lead screw is connected to the light conversion plate 12.

[0037] Figure 2 is a schematic structural diagram of a second embodiment of the lighting device for aquaculture of the present invention. As Figure 2 shown, in one or more embodiments, the lighting device 10 of the present invention includes a light emitting plate 11 and three light conversion plates 12 spaced apart from each other. Based on Figure 2In the orientation shown, the three light conversion plates 12 include a first light conversion plate 12a12, a second light conversion plate 12b12, and a third light conversion plate 12c12 that are sequentially spaced apart along the direction close to the light-emitting plate 11 (i.e., the direction from bottom to top). Each of the first light conversion plate 12a12, the second light conversion plate 12b12, and the third light conversion plate 12c12 has a substrate 121, and a green light quantum dot 1221, a yellow light quantum dot 1222, and a red light quantum dot 1223 are respectively provided on each substrate 121. That is, the green light quantum dot 1221 is provided on the first light conversion plate 12a12; the yellow light quantum dot 1222 is provided on the second light conversion plate 12b12; and the red light quantum dot 1223 is provided on the third light conversion plate 12c12. It should be noted that the arrangement positions of the green light quantum dot 1221, the yellow light quantum dot 1222, and the red light quantum dot 1223 on the first light conversion plate 12a12, the second light conversion plate 12b12, and the third light conversion plate 12c12 can also be adjusted, which will not be elaborated here. Arranging the green light quantum dot 1221, the yellow light quantum dot 1222, and the red light quantum dot 1223 on the corresponding substrates 121 respectively can reduce the interference between different quantum dots 122, improve the manufacturing flexibility, and enhance the stability of the system. Alternatively, the light conversion plates 12 can also be set to 4, 5, or other appropriate numbers, and the green light quantum dot 1221, the yellow light quantum dot 1222, and the red light quantum dot 1223 are separately provided in these light conversion plates 12. In addition, each light conversion plate 12 can be switched between the corresponding first position I and second position II through a suitable driving mechanism (such as a robotic arm 13) so as to flexibly adjust the irradiation of the first light or the second light with different wavelengths on the organism.

[0038] It should be noted that the parts not mentioned in the second embodiment can be configured the same as those in the first embodiment, which will not be elaborated here.

[0039] Figure 3 is a schematic structural diagram of an embodiment of the lighting system of the present invention. As Figure 3 shown, in one or more embodiments, the lighting system 1 of the present invention includes a photovoltaic panel 20 and a lighting device 10 for aquaculture according to any of the above embodiments. The lighting device 10 can be 1, 2, 3, or other appropriate numbers. The photovoltaic panel 20 is electrically connected to the light-emitting plate 11 of the lighting device 10 to provide low-cost and clean energy for it. It should be noted that the number, type, and arrangement method of the photovoltaic panel 20 are not limited as long as it can smoothly provide electrical energy for the lighting device 10.

[0040] Continue to refer to Figure 3, in one or more embodiments, the lighting system 1 of the present invention further includes a storage battery 30 electrically connected to the photovoltaic panel 20, and the storage battery 30 is connected in parallel with the lighting device 10. In this way, when the electric energy generated by the photovoltaic panel 20 is excessive, the storage battery 30 can timely store the remaining electric energy to provide electric energy for the lighting device 10 or other electrical equipment when needed.

[0041] Figure 4 is a schematic flowchart of an embodiment of the lighting method of the present invention. As Figure 4 shown, in one or more embodiments, after the lighting method of the present invention starts, step S1 is first executed, that is, obtaining the growth period of the cultured organisms. Then, step S2 is executed, that is, based on the growth period, the lighting device 10 is selectively controlled to irradiate the organisms with a mixed light of the first light and the second light, wherein the wavelength of the second light is greater than the wavelength of the first light. The organisms can be, but are not limited to, aquatic products, vegetables, fruits, etc. It should be noted that the lighting method of the present invention uses the lighting device 10 for aquaculture described in any of the above embodiments or the lighting system 1 described in any of the above items.

[0042] Next, the technical effects of the lighting method of the present invention will be introduced in detail in combination with comparative experiments.

[0043] Example 1:

[0044] Taking Litopenaeus vannamei as an example, Litopenaeus vannamei generally has four growth periods: larval stage, postlarval stage, juvenile stage and adult stage.

[0045] Table 1: Comparative experimental results of Litopenaeus vannamei in the larval stage

[0046] As shown in Table 1, when Litopenaeus vannamei is in the larval stage, by switching the light conversion plate 120 to the second position II, so that the first light (wavelength 450nm) emitted by the light-emitting plate irradiates on Litopenaeus vannamei, the survival rate can be effectively improved. Among them, when the light intensity is 200lx and the daily light duration is 4h, the survival rate of Litopenaeus vannamei in the larval stage increases from 75.31% (without lighting) to 90.28%.

[0047] Table 2: Comparative experimental results of Litopenaeus vannamei in the postlarval stage

[0048] As shown in Table 2, when the white - leg shrimp is in the post - larval stage, by controlling the light conversion plate 12 to be in the first position I and the second position II respectively, the first light (wavelength 450nm) emitted by the light - emitting plate 11 and the mixed light of the first light and the second light excited by the light conversion plate 12 (wavelengths 450nm, 538nm and 625nm; and 450nm, 538nm, 580nm and 625nm) are respectively irradiated on the white - leg shrimp, which can effectively improve its survival rate. Among them, when the light intensity is 2000 lx, the wavelengths of the mixed light are 450nm, 538nm and 625nm respectively, and the daily light - irradiation duration is 8h, the survival rate of the white - leg shrimp in the larval stage increases from 65.21% (without light irradiation) to 88.24%.

[0049] Table 3: Comparison experiment results of white - leg shrimp in the juvenile shrimp stage

[0050] As shown in Table 3, when the white - leg shrimp is in the post - larval stage, by controlling the light conversion plate 12 to be in the first position I and the second position II respectively, the first light (wavelength 450nm) emitted by the light - emitting plate 11 and the mixed light of the first light and the second light excited by the light conversion plate 12 (wavelengths 450nm, 538nm and 625nm; and 450nm, 538nm, 580nm and 625nm) are respectively irradiated on the white - leg shrimp, which can effectively improve its relative weight - gain rate. Among them, when the light intensity is 3000 lx, the wavelengths of the mixed light are 450nm, 538nm, 580nm and 625nm respectively, and the daily light - irradiation duration is 20h, the relative weight - gain rate of the white - leg shrimp in the juvenile shrimp stage increases from 223.92% (without light irradiation) to 369.57%.

[0051] Table 4: Comparison experiment results of white - leg shrimp in the adult shrimp stage

[0052] As shown in Table 4, when the white - leg shrimp is in the adult shrimp stage, by converting the light conversion plate 12 to the second position II, the mixed light of the first light (wavelength 450nm) emitted by the light - emitting plate 11 and the second light excited by the light conversion plate 12 (wavelengths 450nm, 538nm and 625nm; 450nm, 538nm and 580nm; and 450nm, 538nm, 580nm and 625nm) are respectively irradiated on the white - leg shrimp, which can effectively improve its relative weight - gain rate. Among them, when the light intensity is 3000 lx, the wavelengths of the mixed light are 450nm, 538nm and 580nm respectively, and the daily light - irradiation duration is 20h, the relative weight - gain rate of the white - leg shrimp in the juvenile shrimp stage increases from 4.46% (without light irradiation) to 33.57%.

[0053] Example 2:

[0054] Taking lettuce as an example, lettuce generally has four growth cycles, namely the germination period, the seedling period, the rosette period, and the product organ formation period. First, sow lettuce seeds in a wet sponge seedling block with an opening at the top (2.5 cm in length, width, and height). Then, place it in a dark environment for 2 days. After the seeds germinate, use the same light intensity (e.g., 200 μmol·m -2 ·s -1 ) and daily light duration (e.g., 16 h), and conduct a comparative experiment on lettuce in the seedling period with different lights.

[0055] Table 5: Comparative experiment results of lettuce and shrimp in the seedling period

[0056] As shown in Table 5, when lettuce is in the seedling period, by controlling the conversion of the light conversion plate 12 between the first position I and the second position II, the first light (wavelength 450 nm) emitted by the light-emitting plate 11, the mixed light of the first light and the second light excited by the light conversion plate 12 (wavelengths 450 nm and 538 nm; 450 nm and 580 nm; 450 nm and 625 nm; 450 nm, 538 nm and 580 nm; 450 nm, 538 nm and 625 nm; 450 nm, 580 nm and 625 nm; and 450 nm, 538 nm, 580 nm and 625 nm) are respectively irradiated on the lettuce, the relative weight gain rate can be effectively increased. Among them, when the light intensity is 200 μmol·m -2 ·s -1 , the daily light duration is 16 h, and the wavelengths of the mixed light are 450 nm, 580 nm and 625 nm respectively, the relative weight gain rate of lettuce in the seedling period increases from 18.36% (without light irradiation) to 69.21%.

[0057] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A lighting device (10) for aquaculture, characterized in that, The lighting device (10) includes: a light-emitting panel (11) provided with light-emitting lamp beads capable of emitting first light rays thereon; and a light conversion panel (12), the light conversion panel (12) having a first position opposite to the light-emitting panel (11) and a second position away from the light-emitting panel (11), and when in the first position, the light conversion panel (12) is configured to be able to excite second light rays with a wavelength greater than that of the first light rays under the irradiation of the first light rays, wherein, by controlling the conversion of the light conversion panel (12) between the first position and the second position, the first light rays and the mixed light rays of the first light rays and the second light rays can be selectively irradiated on the cultured organisms.

2. The lighting device (10) for aquaculture according to claim 1, characterized in that, The light-emitting lamp beads are LED lamp beads (111), and the wavelength range of the first light rays is 365 nm - 460 nm.

3. The lighting device (10) for aquaculture according to claim 2, characterized in that a plurality of the LED lamp beads (111) are arranged on the light-emitting panel (11) at intervals from each other; and / or the output power of the LED lamp beads (111) is adjustable; and / or the light-emitting panel (11) includes a control chip that forms a communication connection with the LED lamp beads (111).

4. The lighting device (10) for aquaculture according to any one of claims 1-3, characterized in that, The light conversion panel (12) includes a substrate (121) and quantum dots (122) embedded in the substrate (121), wherein the quantum dots (122) include at least one of green light quantum dots (1221), yellow light quantum dots (1222), and red light quantum dots (1223).

5. The lighting device (10) for aquaculture according to claim 4, characterized in that the mass ratio between the green light quantum dots (1221) and the substrate (121) is greater than or equal to 0.125% and less than or equal to 2%; and / or the mass ratio between the yellow light quantum dots (1222) and the substrate (121) is greater than or equal to 0.125% and less than or equal to 2%; and / or the mass ratio between the red light quantum dots (1223) and the substrate (121) is greater than or equal to 0.125% and less than or equal to 2%.

6. The lighting device (10) for farming according to claim 4, characterized in that, The green light quantum dots (1221), the yellow light quantum dots (1222), and the red light quantum dots (1223) are all arranged in the same substrate (121).

7. The lighting device (10) for aquaculture according to claim 4, characterized in that, The light conversion panel (12) includes at least three substrates (121), and the corresponding one of the green light quantum dots (1221), the yellow light quantum dots (1222), and the red light quantum dots (1223) is respectively provided in at least three substrates (121).

8. The lighting device (10) for aquaculture according to claim 4, characterized in that the wavelength range of the second light rays excited by the green light quantum dots (1221) is 510 nm - 550 nm; and / or the wavelength range of the second light rays excited by the yellow light quantum dots (1222) is 560 nm - 600 nm; and / or The wavelength range of the second light ray excited by the red quantum dots (1223) is 610 nm - 650 nm; and / or The green quantum dots (1221), the yellow quantum dots (1222) and the red quantum dots (1223) are made of the same material.

9. The lighting device (10) for aquaculture according to claim 4, characterized in that, The material of the substrate (121) is PS or PC, and the material of the quantum dots (122) is CdTe, CdSe, InP, InAs, CsPbBr3 or CsPbBr x / I 3-x .

10. The lighting device (10) for aquaculture according to claim 1, characterized in that, The lighting device (10) further includes a robotic arm (13) for driving the light conversion plate (12) to switch between the first position and the second position.

11. A lighting system (1), characterized in that, The lighting system (1) includes: At least one lighting device (10) according to claims 1 - 10; and A photovoltaic panel (20), the photovoltaic panel (20) being electrically connected to the light emitting panel (11) of the lighting device (10).

12. The lighting system (1) according to claim 11, characterized in that, The lighting system (1) further includes an energy storage battery (30) electrically connected to the photovoltaic panel (20), and the energy storage battery (30) is connected in parallel with the lighting device (10).

13. A lighting method, characterized in that, The lighting method uses the lighting device (10) for aquaculture according to any one of claims 1 - 10 or uses the lighting system (1) according to claim 11 or 12, and the lighting method includes: Obtaining the growth stage of the organisms being cultured; Based on the growth stage, selectively controlling the lighting device (10) to irradiate the organisms with the first light ray, or a mixed light of the first light ray and the second light ray, wherein the wavelength of the second light ray is greater than the wavelength of the first light ray.

14. The lighting method according to claim 13, wherein The organisms are aquatic products, vegetables or fruits.

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