Light Storage Lighting Device Based on the Combination of Long Afterglow Materials and Solar Panels

Abstract

The present invention discloses a light storage lighting device based on a combination of long afterglow materials and solar panels, which includes a collection module, a light storage cavity module, a circuit module, a focusing module, and a light storage cavity cover. Among them, the surface of the optical element group of the collection module that participates in light reflection is attached with a highly reflective film, the inner wall of the light storage cavity cylinder is pasted with a highly reflective film, the long afterglow material is coated on the highly reflective film, and only the highly reflective film is pasted on the bottom surface of the light storage cavity cylinder. In the light collection stage of the device of the present invention, the collection module is docked with the light storage cavity module, and external light is introduced by the collection module, and the light energy is stored with the help of the long afterglow material and the solar panel; in the storage stage, the light storage cavity module is docked with the light storage cavity cover to reduce the overflow of internal light energy; in the lighting stage, the light storage cavity module is docked with the focusing module, so that the diode is located at the focal point of the convex lens, and the diode light and the continuously highly intense afterglow light of the re-excited long afterglow material are focused through the optical element group, so that the device emits parallel light with a relatively strong light intensity and can be used for lighting.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy-storing lighting devices, and relates to an energy-storing lighting device based on the combination of long-afterglow materials and solar panels. Background Art

[0002] Due to its unique luminescent properties and the characteristics of green energy conservation, long-afterglow materials have broad development prospects and are widely used in low-light lighting fields such as safety passage signs and home decoration. Its luminescence principle is that the material is excited by external energy. Due to its unique metastable structure, electrons absorb energy and transition, resulting in population inversion and forming continuous afterglow luminescence. However, due to problems such as too fast afterglow decay and weak light intensity of long-afterglow materials, it is difficult to meet the lighting needs of daily life when used alone. Considering the above factors, the present invention adopts a combination of long-afterglow materials and solar cells, with the solar cell as the main energy storage and the long-afterglow material as the auxiliary to design an energy-storing lighting device to achieve green and environmentally friendly sunlight storage. The device focuses sunlight with an external optical unit and stores the energy in the long-afterglow material coated on the inner wall of the energy storage cavity and the solar panel. When in use, the light energy of the light-emitting diode and the afterglow of the material act together to provide lighting to increase the light intensity. Summary of the Invention

[0003] The purpose of the present invention is to provide an energy-storing lighting device based on the combination of long-afterglow materials and solar panels, which solves the problems of low utilization of light energy, large loss, and insufficient lighting effect existing in existing solar energy-storing lighting devices.

[0004] The technical solution adopted by the present invention is that an energy-storing lighting device based on the combination of long-afterglow materials and solar panels includes five parts: a collection module, an energy storage cavity module, a circuit module, a focusing module, and an energy storage cavity cover.

[0005] The structure of the collection module is that it includes a semi-concave mirror, a plane reflector A, a plane reflector B, and a light outlet. The upper part of the collection module device is spherical shell-shaped, the lower part of the collection module device is cylindrical, and a high-reflection film is attached to the surface participating in reflection by the external optical unit. A light outlet is opened in the bottom plate of the cylindrical lower part of the collection module device, and an internal thread A is provided along the mouth edge of the cylindrical lower part of the collection module device.

[0006] The energy-storing lighting device based on the combination of long-afterglow materials and solar panels of the present invention is further characterized in that:

[0007] The structure of the light storage cavity module is as follows: it includes a light storage cavity cylinder, which is in the shape of a cylinder with an open upper end and a closed bottom. An external thread A is provided on the outer edge of the open upper end of the light storage cavity cylinder; a highly reflective film is pasted on the inner wall of the light storage cavity cylinder, and a long afterglow material mixed with varnish is applied on the highly reflective film. Only the highly reflective film is pasted on the bottom surface of the light storage cavity cylinder; a plastic rod is vertically fixed at the central position of the upper surface of the bottom surface of the light storage cavity cylinder. An LED in the circuit module is inserted through the upper part of the plastic rod. The LED is fixed on the central axis of the cylinder, facing the opening of the light storage cavity module for light output. The light emission color of the LED is the same as the afterglow color of the long afterglow material; a through wire hole is opened on the side wall of the light storage cavity cylinder.

[0008] The light storage cavity cylinder is configured with a light storage cavity cover. The inner surface of the light storage cavity cover is also coated with a long afterglow material, and an internal thread C is provided on the mouth edge of the light storage cavity cover.

[0009] The structure of the circuit module is as follows: it includes a solar panel, a charging component, a battery pack, a control switch, and an LED. The LED is arranged on the plastic rod, and the other components are fixed on the outer side wall surface of the cylinder of the light storage cavity cylinder; the solar panel is connected to the battery pack through the charging component, and the battery pack is additionally connected to the LED through the control switch.

[0010] The structure of the focusing module is as follows: it includes a cylindrical lens group frame, and an internal thread B is provided on the edge of one end of the lens group frame; a convex lens A, a convex lens B, and a concave lens are respectively arranged in the positioning grooves of the inner circle of the lens group frame. The optical centers of all the lenses are coaxial with the central axis of the light storage cavity cylinder, and the LED in the light storage cavity cylinder is located at the focal position of the convex lens A.

[0011] The convex lens A and the convex lens B are 3 cm apart. The concave lens is located in front of the focal point of the convex lens B, and is one focal length of the concave lens away from the focal point of the convex lens B, that is, the right focal points of the concave lens and the convex lens B coincide.

[0012] The beneficial effects of the present invention are as follows: The method of combining a solar panel and a long afterglow material is used for energy storage, with electric energy as the main and the electronic transition energy of the material as the auxiliary. They complement each other and jointly provide lighting; during lighting, on the one hand, the scattering of the light energy of the LED is restricted, and on the other hand, the light emitted by the LED to the surrounding area re-excites the long afterglow material to continuously emit high-intensity afterglow light, reducing the energy storage loss while also enhancing the lighting light intensity during use. Compared with the current circuit powered solely by a solar cell, the light storage capacity is more, and the lighting light intensity during lighting is also stronger, increasing by about 16%. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the lighting state of the light storage lighting device according to Embodiment 1 of the present invention;

[0014] Figure 2Schematic diagram of the collection module in the energy storage lighting device of the present invention;

[0015] Figure 3 Combined schematic diagram of the energy storage cavity module and the circuit module in the energy storage lighting device of the present invention;

[0016] Figure 4 Schematic diagram of the circuit module in the energy storage lighting device of the present invention;

[0017] Figure 5 Schematic diagram of the focusing module in the energy storage lighting device of the present invention;

[0018] Figure 6 Schematic diagram of the energy storage cavity cover in the energy storage lighting device of the present invention;

[0019] Figure 7 Schematic diagram of the optical path for the collected light to enter the energy storage cavity cylinder;

[0020] Figure 8 Schematic diagram of the reflection and transmission of light on the wall surface of the energy storage cavity cylinder coated with long afterglow material;

[0021] Figure 9 Schematic diagram of the focusing module of the energy storage lighting device in Embodiment 2 of the present invention;

[0022] Figure 10 Schematic diagram of the lighting state of the energy storage lighting device in Embodiment 2 of the present invention.

[0023] In the figure, 101. Semi-concave mirror; 102. Plane reflector A; 103. Plane reflector B; 104. Light outlet; 201. Solar panel; 202. Charging component of model TP4056; 203. Battery pack; 204. Control switch; 205. Light-emitting diode; 301. Energy storage cavity cylinder; 302. Bottom surface of the energy storage cavity cylinder; 303. Plastic rod; 401. Energy storage cavity cover; 501. Convex lens A; 502. Convex lens B; 503. Concave lens; 504. Lens group frame. Specific implementation manners

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation manners.

[0025] Refer to Figure 1 , the overall structure of the energy storage lighting device of the present invention is that it includes five parts: a collection module, an energy storage cavity module, a circuit module, a focusing module, and an energy storage cavity cover,

[0026] Refer to Figure 2, the structure of the collection module includes a semi-concave mirror 101, a plane mirror A 102, a plane mirror B 103, and a light outlet 104. The upper part of the collection module device (semi-concave mirror 101) is spherical, and the lower part is cylindrical. A highly reflective film is attached to the surfaces participating in light reflection of the external optical unit (the concave surface of the semi-concave mirror 101, the light-emitting surfaces of the plane mirror A 102 and the plane mirror B 103). An outlet 104 is opened in the bottom plate of the cylindrical lower part of the collection module device, and an internal thread A is provided along the edge of the cylindrical lower part of the collection module device; the plane mirror A 102 and the plane mirror B 103 are both arranged at a position slightly below a predetermined distance behind the optical center of the semi-concave mirror 101; through the design of the positions and reflection angles of the three mirrors, the converged external light is emitted from the light outlet 104 and filled into the lower light storage cavity module.

[0027] Refer to Figure 3 , the structure of the light storage cavity module includes a light storage cavity cylinder 301, which is cylindrical with an open upper end and a closed bottom. An external thread A is provided along the outer edge of the open upper end of the light storage cavity cylinder 301; a highly reflective film is pasted on the inner wall of the light storage cavity cylinder 301, and a long afterglow material with a certain thickness and mixed with varnish is applied on the highly reflective film. Only a highly reflective film is pasted on the bottom surface 302 of the light storage cavity cylinder; a slender plastic rod 303 is vertically fixed at the axial center position of the upper surface of the bottom surface 302 of the light storage cavity cylinder. An LED 205 in the circuit module is passed through the upper part of the plastic rod 303. The LED 205 is fixed on the central axis of the cylinder, facing the opening of the light storage cavity module to emit light. The emission color of the LED 205 is the same as the afterglow color of the long afterglow material; a through wire hole is opened on the side wall of the light storage cavity cylinder 301. After leading out the wire of the LED 205, sealant is injected and long afterglow material is attached to fill the gap of the wire hole.

[0028] Refer to Figure 6 , a certain thickness of long afterglow material is also applied on the inner surface of the light storage cavity cover 401, and an internal thread C is provided along the edge of the light storage cavity cover 401.

[0029] Refer to Figure 4 , the structure of the circuit module includes a solar panel 201, a charging component 202 of model TP4056, a battery pack 203, a control switch 204, and an LED 205. The LED 205 is arranged in the plastic rod 303, and the rest of the components are fixed on the outer side wall surface of the light storage cavity cylinder 301; the solar panel 201 is connected to the battery pack 203 through the charging component 202 of model TP4056, and the battery pack 203 is additionally connected to the LED 205 through the control switch 204.

[0030] Refer to Figure 1 , Figure 5 , Figure 9, the structure of the focusing module is as follows: it includes a cylindrical lens group frame 504. In the positioning grooves on the inner circle of the lens group frame 504, a convex lens A501, a convex lens B502, and a concave lens 503 are respectively arranged. The optical centers of the above three lenses are coaxial with the central axis of the light storage cavity cylinder 301. The light-emitting diode 205 in the light storage cavity cylinder 301 is located at the focal position of the convex lens A501. The convex lens A501 and the convex lens B502 are about 3 cm apart. The concave lens 503 is located in front of the focal point of the convex lens B502, and the distance from the focal point of the convex lens B502 is the focal length of a concave lens 503, that is, the right focal points of the concave lens 503 and the convex lens B502 coincide; an internal thread B is provided along the port edge at one end of the lens group frame 504.

[0031] The device of the present invention is overall wrapped with an outer shell on the periphery to ensure the stability of each module.

[0032] The working principle of the present invention is as follows: A highly reflective film is pasted on the surface of the outer optical unit of the collection module that participates in light reflection. Through the design of the angular positions of the three mirror surfaces, the external light entering from the collection port is converged and emitted from the light exit port and filled into the light storage cavity module connected below. The internal thread A along the bottom port edge of the semi-concave mirror 101 of the collection module can be docked and assembled with the external thread A of the light storage cavity cylinder 301 of the light storage cavity module. The area of the light exit port of the collection module is relatively smaller than the area of the receiving port, and the overflow of afterglow light in the light storage cavity module can be reduced during the light storage process after assembly;

[0033] The upper opening of the light storage cavity cylinder 301 of the light storage cavity module is provided with an external thread A to ensure its stable docking with the collection module, the light storage cavity cover, and the focusing module, and to freely switch between the light storage mode and the lighting mode. A highly reflective film is pasted on the inner wall of the light storage cavity module to avoid the absorption of photons by the inner wall and reduce the light storage efficiency. Then, a long afterglow material mixed with varnish is evenly coated with a certain thickness, and a highly reflective film is pasted on the bottom surface to enhance the light intensity of the light emitted during lighting. The light-emitting diode 205 in the circuit module passes through the plastic rod 303 in the light storage cavity module. The light-emitting color of the light-emitting diode 205 is the same as the afterglow color of the long afterglow material. The light-emitting diode 205 emits light towards the opening of the light storage cavity module during lighting; The charging component 202 of the TP4056 model is used to control the charging and discharging process of the solar panel 201 to the battery pack 203 (lithium battery). The red and green indicator lights respectively represent the charging and fully charged states of the device. The control switch 204 is used to control the operation of the light-emitting diode 205;

[0034] One end of the lens group frame 504 is provided with an internal thread B along the inner wall, which can be sleeved correspondingly with the external thread A of the light storage cavity module. When the aggregation module is docked with the light storage cavity module for illumination, the optical center of the convex lens is on the same axis as the light storage cavity cylinder 301, and the light-emitting diode 205 in the light storage cavity cylinder 301 is at the focal position of the convex lens, so as to ensure that the outgoing light in the light storage cavity cylinder 301 is mainly parallel light as much as possible, thereby ensuring good illumination effect within a certain illumination range; the internal thread C at the mouth edge of the light storage cavity cover 401 is docked with the external thread A of the light storage cavity cylinder 301 of the light storage cavity module during light storage.

[0035] Refer to Figure 7 、 Figure 8 , in the case of the reflection and transmission of the light on the wall surface coated with the long-afterglow material on the inner surface of the light storage cavity cylinder 301, the intensity attenuation formula of the light in the medium is: I″1 = I′1e -∝d (1)

[0036] wherein, I′1 is the incident light intensity of the light on the surface of the medium, ∝ is the light attenuation coefficient in the medium, and d is the propagation distance of the light after entering the medium.

[0037] The refraction formula of the light is: sini1 = n2sini2 (2)

[0038] The Fresnel-Kirchhoff diffraction formula is:

[0039]

[0040] The reflection coefficient and transmission coefficient (r s1 、r s2 、r s3 、t s1 、t s2 、t s3 ) of the s light at the three interfaces are expressed as follows:

[0041]

[0042]

[0043]

[0044]

[0045]

[0046]

[0047] When the incident light intensity is I0, the reflection light intensity and transmission light intensity (I 1s 、I′ 1s ) of the s light are expressed as follows:

[0048]

[0049]

[0050] I 0s = I0 / 2 (7)

[0051] The reflection coefficients and transmission coefficients (r p1 、r p2 、r p3 、t p1 、t p2 、t s3 ) of p-light at the three interfaces are expressed as follows:

[0052]

[0053]

[0054]

[0055]

[0056]

[0057]

[0058] When the incident light intensity is I0, the reflected light intensity and transmitted light intensity (I 1p 、I′ 1p ) of p-light are expressed as follows:

[0059]

[0060]

[0061] I op = I 0 / 2 (11)

[0062] Accordingly, by using the calculation module, through the existing program and the above calculation and derivation process, substituting the incident angle i1 of the converging light, the incident light intensity I0, the refractive index n2 of the long afterglow material, the refractive index n3 of the device wall, and the attenuation coefficient ∝ of the light in the long afterglow material, the light intensity when the light enters the light storage cavity cylinder 301 is I0, and the magnitudes of the reflected and transmitted light intensities after multiple reflections on the wall surface of the light storage cavity cylinder 301 can be calculated. Through the Fresnel-Kirchhoff diffraction formula, the light intensity distribution in the light storage cavity cylinder 301 can be obtained.

[0063] The operation processes of the three assembly methods of the device of the present invention are as follows:

[0064] 1) During the light receiving process, the collection module is assembled and connected with the light storage cavity module, and the solar panel 201 and the light collecting port of the collection module are oriented toward the light direction to achieve maximum light storage.

[0065] 2) During the light storage process, the collection module is removed and replaced with the light storage cavity cover 401 which is assembled and connected with the light storage cavity module.

[0066] 3) During the lighting release process, the light storage cavity cover is removed, replaced with a focusing module assembled and connected to the light storage cavity, and the control switch 204 of the circuit module is turned on to achieve combined lighting of the light of the light emitting diode 205 and the afterglow light.

[0067] Example 1

[0068] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The structure of this embodiment includes five parts, namely, a collection module, a light storage cavity module, a circuit module, a focusing module, and a light storage cavity cover. The working modes are divided into a receiving process, a storage process, and a lighting release process. The light storage cavity module is assembled with the collection module, the light storage cavity cover, and the focusing module by threaded connection, so as to realize the switching among the three working modes.

[0069] In the collection module, the semi-concave mirror 101, the plane reflector A102, the plane reflector B103, and the light outlet 104 are designed with position angles to securely install the corresponding components. External light enters from the collection port, is converged by the semi-concave mirror 101, and is reflected by the plane reflectors A102 and B103 at angles to reduce the range of the illumination area. Finally, it is emitted from the light outlet 104 and enters the light storage cavity module assembled below. At the same time, the light output area of the light storage cavity tube 301 to the outside is reduced during the light storage process, which helps to reduce the overflow of the afterglow light in the light storage cavity module.

[0070] In the circuit module, the TP4056 charging component 202 is used to control the charging and discharging process of the solar panel 201 to the battery pack 203. The red indicator light on the board indicates that the battery is still in the charging state, and the green indicator light indicates that the battery is fully charged. The lighting is controlled by controlling the operation of the light-emitting diode 205 through the control switch 204.

[0071] In the light storage cavity module, a highly reflective film is attached to the inner wall surface of the light storage cavity cylinder 301, and a certain thickness of long afterglow material is evenly attached. While the long afterglow material stores light, it can also effectively avoid the light energy dissipation caused by the absorption of photons by the inner wall. Appropriate corrugated parts can also be added to the inner wall of the light storage cavity cylinder 301 to increase the surface area of the long afterglow material coating layer and store more light energy. The bottom surface 302 of the light storage cavity cylinder is also attached with a highly reflective film to enhance the working light intensity during illumination. The light-emitting diode 205 in the circuit module emits light towards the opening of the light storage cavity module during illumination.

[0072] In this embodiment, the long afterglow material is SrAl2O4:Eu 2+ ,Dy 3+ , and the long afterglow material powder is SrAl2O4:Eu 2+ ,Dy 3+ Combined with K2SiO3 and applied with a mixed varnish. SrAl2O4:Eu 2+ ,Dy 3+ is sensitive to short-wavelength visible light and ultraviolet light, and the peak of the afterglow light is around 520nm. The light emitted by the long afterglow on the inner wall of the light storage cavity cylinder 301 during enclosure is recycled multiple times, which can effectively enhance the light storage performance of the device. The light-emitting diode 205 is selected as a green light-emitting diode, and its emitted light color is the same as the afterglow color of the long afterglow material. The green light generated during the illumination work process is used as a pump source to stimulate the long afterglow material to continuously emit light, which can keep the afterglow light intensity of the long afterglow material at the peak all the time. The two are jointly used for illumination. On the one hand, this limits the scattered overflow of the light energy of the light-emitting diode 205, and on the other hand, it allows the long afterglow material to be re-excited to continuously emit high-intensity afterglow light, reducing the energy storage loss while enhancing the illumination light intensity during use.

[0073] A certain thickness of long afterglow material is also applied to the inner surface of the light storage cavity cover 401, which can effectively prevent the waste of the fluorescence of the long afterglow material during the light storage state during storage, better ensure the light storage effect, and increase the practicability of the device.

[0074] In the focusing module, it includes a cylindrical lens group frame 504 and a convex lens A501. The convex lens A501 is located inside the lens group frame 504. During assembly, the optical center of the convex lens A501 is on the same axis as the light storage cavity cylinder 301, and the light-emitting diode 205 in the light storage cavity cylinder 301 is at the focal position of the convex lens A501, as much as possible to ensure that the light emitted from the light storage cavity cylinder 301 is mainly parallel light, ensuring a good illumination effect within a certain illumination range and enhancing the practicability of the device of the present invention.

[0075] Embodiment 2

[0076] Refer to Figure 9 , Figure 10, on the basis of Embodiment 1, the energy storage lighting device of this embodiment has improved the focusing module. In the improved focusing module, a convex lens A501, a convex lens B502, and a concave lens 503 are sequentially arranged in the cylindrical lens group frame 504. During assembly, the optical centers of the respective lenses are coaxial with the central axis of the energy storage cavity cylinder 301. The light-emitting diode 205 in the energy storage cavity cylinder 301 is located at the focal position of the convex lens A501, and it is ensured as much as possible that the outgoing light in the energy storage cavity cylinder 301 is mainly parallel light. The convex lens A501 and the convex lens B502 are about 3 cm apart. The concave lens 503 is located in front of the focal point of the convex lens B502, and is one focal length of the concave lens 503 away from the focal point of the convex lens B502, that is, the right focal points of the concave lens 503 and the convex lens B502 coincide, so that the parallel light incident on the surface of the convex lens B502 converges, and after being diverged by the concave lens 503, it exits parallel, so as to enhance the illumination light intensity per unit area and increase the practicality of the device, and it has a good application prospect for night lighting.

[0077] Experimental verification:

[0078] 1) The energy storage lighting conditions of four energy storage cavities with different thicknesses of long afterglow materials coated on the inner wall.

[0079] Four energy storage cavity cylinders 301 with the same specifications and dimensions (20 cm high and 6.5 cm in diameter) are selected. First, a layer of high-reflection film is attached to each inner wall to reduce the light absorption of the cylinder wall, and then different numbers of layers of long afterglow materials are attached for comparative experiments. Each layer of long afterglow material layer is 20 g of powder plus 40 ml of varnish. The chemical formula of the long afterglow material is SrAl2O4:Eu 2+ ,Dy 3+ , K2SiO3. One layer, two layers, three layers, and four layers of long afterglow layers are respectively coated on the inner walls of the four energy storage cavity cylinders 301. The afterglow outgoing light intensity at the opening of the energy storage cavity cylinder 301 is measured when the four energy storage cavity cylinders 301 are irradiated by external light of a certain intensity for a certain time, and the afterglow outgoing light intensity at the opening of the energy storage cavity cylinder 301 after being placed for a period of time after covering the energy storage cavity cover 401. The composition table of the long afterglow materials used in the device, and the afterglow outgoing light intensity data at the cavity opening after the energy storage of the four energy storage cavities with different numbers of long afterglow layers are shown in Tables 1 and 2 below.

[0080] Table 1. Long afterglow materials used in the device of the present invention

[0081]

[0082] Table 2. Outgoing light intensity after the energy storage of the four energy storage cavities with different numbers of long afterglow layers

[0083]

[0084]

[0085] 2) Light intensity at different distances under four different devices.

[0086] Continue to select the light storage cavity tube 301 of the above four-layer long afterglow material for the next experiment. It was found in the research that after adding a light source, the long afterglow material on the inner wall of the light storage cavity tube 301 has a certain improvement on the illumination light intensity. Four groups of experiments were set up for exploration, namely measuring at different distances: 1) the luminous intensity of a single light-emitting diode, 2) the overall luminous intensity of the light-emitting diode after adding the tube (increasing the light storage cavity tube 301), 3) the overall luminous intensity of the light-emitting diode after adding the tube (increasing the light storage cavity tube 301) and applying the long afterglow material on the entire wall surface, 4) the overall luminous intensity of the light-emitting diode after adding the tube (increasing the light storage cavity tube 301), applying the long afterglow material on the side wall surface and sticking a reflective film on the bottom surface. There are a total of four groups of experiments, and the experimental data are shown in Tables 3, 4, 5, and 6 below.

[0087] Table 3. Luminous intensity of a single light-emitting diode at different distances

[0088]

[0089] Table 4. Overall luminous intensity of the light-emitting diode after adding the tube at different distances

[0090]

[0091] Table 5. Overall luminous intensity of the light-emitting diode after adding the tube and applying the long afterglow material on the entire wall surface at different distances

[0092]

[0093] Table 6. Overall luminous intensity of the light-emitting diode after adding the tube, applying the long afterglow material on the side wall surface and sticking a reflective film on the bottom surface at different distances

[0094]

[0095] Through the analysis of the experimental data, it is found that adding the long afterglow material has a certain improvement effect on the overall outgoing light intensity of the device. At the same time, in order to have more light emitted at the opening of the light storage cavity (light storage cavity tube 301) per unit time, a reflective film is pasted on the bottom surface of the light storage cavity tube 301. The light intensity of the fourth group of devices is increased by about 25% compared with the device of the first group of pure light-emitting diodes, and is increased by about 16% compared with the device of the second group without the long afterglow material.

[0096] The device of the present invention can also dope a certain amount of upconversion material in the long afterglow material, which can convert infrared and visible light in the device into ultraviolet light to re-excite the long afterglow material to a greater extent, so as to continuously realize afterglow luminescence with high intensity.

Claims

1. A light storage lighting device based on the combination of long afterglow materials and solar panels, characterized in that: It includes five parts: a collection module, a light storage cavity module, a circuit module, a focusing module, and a light storage cavity cover. The structure of the collection module is as follows: it includes a semi-concave mirror (101), a plane reflector A (102), a plane reflector B (103), and a light outlet (104). The upper part of the collection module device is spherical, and the lower part is cylindrical. A highly reflective film is attached to the surface of the outer optical system that participates in reflection. An optical outlet (104) is opened in the bottom plate of the cylindrical lower part of the collection module device, and an internal thread A is provided along the edge of the cylindrical lower part of the collection module device. The structure of the light storage cavity module is as follows: it includes a light storage cavity cylinder (301). The light storage cavity cylinder (301) is cylindrical with an open top and a closed bottom. An external thread A is provided along the outer edge of the open top of the light storage cavity cylinder (301). The light storage cavity cylinder (301) is equipped with a light storage cavity cover (401). The inner surface of the light storage cavity cover (401) is also coated with a long afterglow material, and an internal thread C is provided along the edge of the light storage cavity cover (401). The structure of the circuit module is as follows: it includes a solar panel (201), a charging component (202), a battery pack (203), a control switch (204), and a light-emitting diode (205). The light-emitting diode (205) is arranged in a plastic rod (303). The solar panel (201), the charging component (202), the battery pack (203), and the control switch (204) are all fixed on the outer side wall of the cylinder of the light storage cavity cylinder (301). The solar panel (201) is connected to the battery pack (203) through the charging component (202), and the battery pack (203) is additionally connected to the light-emitting diode (205) through the control switch (204). The structure of the focusing module is as follows: it includes a cylindrical lens group frame (504), and an internal thread B is provided along the edge of one end of the lens group frame (504). Based on the above module structure, there are the following three assembly methods: 1) During the process of receiving light, assemble and connect the internal thread A of the collection module with the external thread A of the light storage cavity module, and orient the solar panel (201) and the light collecting port of the collection module towards the light source. 2) During the process of storing light, remove the collection module and replace it with the internal thread C of the light storage cavity cover (401) assembled and connected to the external thread A of the light storage cavity module. 3) During the process of releasing illumination, remove the light storage cavity cover (401) and replace it with the internal thread B of the focusing module assembled and connected to the external thread A of the light storage cavity module. Open the control switch (204) of the circuit module to achieve combined illumination of the light emitted by the light-emitting diode (205) and the afterglow light.

2. The light storage lighting device based on the combination of long afterglow materials and solar panels according to claim 1, characterized in that: In the optical storage cavity module, a highly reflective film is pasted on the inner wall of the optical storage cavity cylinder (301), and a long afterglow material mixed with varnish is coated on the highly reflective film. Only a highly reflective film is pasted on the bottom surface (302) of the optical storage cavity cylinder; a plastic rod (303) is vertically fixed at the axial center position of the upper surface of the bottom surface (302) of the optical storage cavity cylinder. An LED (205) in the circuit module is inserted through the upper part of the plastic rod (303). The LED (205) is fixed on the central axis of the cylinder, facing the opening of the optical storage cavity module for light output. The light-emitting color of the LED (205) is the same as the afterglow color of the long afterglow material; a through wire hole is formed in the side wall of the optical storage cavity cylinder (301).

3. The light storage lighting device based on the combination of long afterglow materials and solar panels according to claim 1, characterized in that: In the focusing module, a convex lens A (501) and / or a convex lens B (502) and a concave lens (503) are respectively arranged in the positioning grooves of the inner circle of the lens group frame (504). The optical centers of all the lenses are coaxial with the central axis of the optical storage cavity cylinder (301). The LED (205) in the optical storage cavity cylinder (301) is located at the focal position of the convex lens A (501).

4. The light storage lighting device based on the combination of long afterglow materials and solar panels according to claim 3, characterized in that: The convex lens A (501) and the convex lens B (502) are 3 cm apart. The concave lens (503) is located in front of the focal point of the convex lens B (502), and is one focal length of the concave lens (503) away from the focal point of the convex lens B (502), that is, the left focal point of the concave lens (503) coincides with the right focal point of the convex lens B (502).

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