303 results about "Artificial light" patented technology

The invention belongs to the technical field of building envelope photo-thermal performance detection, and particularly relates to a spray type light-transmitting roof photo-thermal performance detection device and a detection method thereof. The spray type light-transmitting roof photo-thermal performance detection device comprises an external environment simulation device which comprises an external environment box and an artificial light source, and the artificial light source is installed in the external environment box; the light-transmitting roof test piece is mounted on the lower side wall of the external environment box; the spraying device comprises a nozzle, and the nozzle is located below the artificial light source and above the light-transmitting roof test piece; the heat metering device comprises a heat metering box and a plurality of detection sensors; the air supply and return system is used for circularly conveying airflow into the heat metering device; the water supply and return system is used for supplying water to the air supply and return system; the control system is used for controlling the external environment simulation device, the heat metering device, the air supply and return system, the water supply and return system and the spraying device. According to the invention, the photo-thermal performance of the light-transmitting roof under the spraying condition can be accurately evaluated.

The invention discloses a fishery underwater image enhancement method based on a multi-branch joint correction network, and the method comprises the steps: carrying out the denoising of an original underwater image through a minimum image segmentation noise separator, and obtaining a brightness channel and a color channel; secondly, decoupling a brightness channel to obtain intrinsic characteristic information and brightness information, and designing a brightness correction network to eliminate brightness degradation of the image; and performing multi-scale feature extraction on the corrected brightness channel, and performing wavelet transform on the brightness channel to a frequency domain to obtain an enhanced brightness channel. And carrying out difference operation on the two brightness channels before and after brightness correction, and then carrying out binarization processing to obtain an artificial light source illumination area mask. And finally, carrying out artificial light source illumination area mask-guided color restoration on the color channel, outputting an enhanced color channel, fusing the enhanced color channel with an enhanced brightness channel, and outputting an enhancement result. According to the method, detail reduction and color calibration of the underwater image can be effectively realized.

The invention discloses a tunnel detection method based on a color image, and relates to the technical field of tunnel detection, and the method comprises the following steps: obtaining color image data in a tunnel, and carrying out the illumination condition calibration of the image data, so as to recognize the illumination change caused by natural light, an artificial light source and a light source fault. According to the method, through illumination calibration, adaptive color correction and dynamic contrast enhancement technologies, the problems of image color distortion and detail loss under the complex illumination condition of the tunnel are solved, accurate extraction of color features and clear presentation of details of each region are ensured, and the robustness and precision of defect detection are remarkably improved. In combination with edge detection, color feature extraction, shape analysis and a machine learning algorithm, automatic application of a multi-modal identification technology is realized, misjudgment areas are automatically filtered, a defect detection report with high confidence is generated, and the defect detection report comprises crack length, leakage area and deformation classification. Accurate and comprehensive data support is provided for tunnel safety assessment and maintenance decision.

The invention relates to the technical field of totally-closed artificial light plant factory planting, in particular to a totally-closed artificial light plant factory tomato seedling raising method, which is characterized in that each stage and each link in the whole cycle process of tomato growth are accurately controlled, and the tomato seedling raising efficiency is improved. Comprising the steps of nutrient solution management, irrigation frequency management and seedling raising environment temperature control in the stages of seed treatment, substrate preparation, sowing and germination acceleration, seedling raising and the like. The selection of a planting light source in the seedling raising stage is obtained through creative labor on the basis of a large amount of experimental data; the formula of the nutrient solution is also obtained on the basis of tomato characteristics and a large amount of experimental data in combination with creative labor; and the technical prejudice of conventional means is overcome, and the temperature condition of low-temperature treatment is adopted. All the technical means are organically combined and mutually influenced and promoted, and the technical problem of excessive growth of tomatoes in an artificial light environment can be effectively solved.

The invention discloses a plant growth environment regulation and control method, device and system and a storage medium. The method comprises the following steps: acquiring multi-dimensional plant growth data; obtaining a growth prediction model according to the multi-dimensional plant growth data; acquiring environmental parameter data of illumination intensity, temperature and humidity and carbon dioxide concentration in real time; when the environmental parameter data fluctuates severely, an early warning mechanism is triggered, and the working parameters of the artificial light source, the humidifying equipment and the ventilation equipment are automatically adjusted according to the feedback of the growth prediction model. By means of the technical scheme, the growth quality and yield of plants can be effectively improved, manual intervention is reduced, and the planting cost is reduced.

The invention belongs to the technical field of photo-thermal performance detection of building envelope structures, and particularly relates to a light-transmitting roof photo-thermal performance detection device under various meteorological conditions and a detection method of the light-transmitting roof photo-thermal performance detection device. The invention discloses a light-transmitting roof photo-thermal performance detection device under various meteorological conditions. The device comprises a heat metering device, an air supply and return system, a water supply and return system, a control system and an external environment simulation device, wherein the external environment simulation device comprises an external environment box and an artificial light source; the light-transmitting roof test piece is installed on the lower side wall of the external environment box, and the external environment simulation device and the spraying device are used for simulating the environment conditions of different steady-state meteorological conditions and dynamic meteorological conditions under the spraying condition; the spraying device comprises a nozzle; a first light source radiation intensity sensor, a second light source radiation intensity sensor and a first illuminance sensor are further arranged in the outer environment box. According to the invention, the photo-thermal performance of the light-transmitting roof under the spraying condition can be accurately evaluated.

The invention relates to the field of heliostat calibration, and discloses a scheduling method for calibrating heliostats through cooperation of artificial light sources and cameras in a large-scale heliostat field, and the method comprises the following steps: determining the heliostat range covered by each camera, determining the heliostat range covered by each artificial light source, and determining the heliostat range covered by each camera; the method comprises the following steps: determining the center and size of a light spot in an image shot by a camera when the heliostats are calibrated, determining the heliostats which can be calibrated in the coverage range of each artificial light source-camera combination, regarding each effective calibration combination as a node to construct an undirected graph, dividing the nodes into a plurality of groups through a graph grouping algorithm, and ensuring that the nodes in the same group are not connected with each other, therefore, all combinations in the same group can execute calibration in parallel. According to the method disclosed by the invention, the problem of affiliation misjudgment caused by light spot interference between heliostats is solved, possible shadow and shielding problems are avoided, dynamic scheduling of the artificial light source and the camera is realized, and invalid operation time is shortened.

The invention discloses a compressor rotor assembly defect detection method and system based on machine vision, and relates to the technical field of defect detection.During operation of the system, sensors are arranged on the periphery of a detection station, the real-time brightness of natural light and an artificial light source in a workshop is collected, a programmable LED lamp array is arranged above a rotor detection area, and the real-time brightness of the rotor detection area is detected; the method comprises the following steps: dynamically adjusting the brightness and color temperature of an LED, forming a controllable optical domain, shooting two paths of images, synchronously obtaining a visible light HDR image and a near-infrared image, outputting preliminary fusion data, caching a synchronous frame to an annular buffer area, and if the ambient light fluctuation is still severe, fusing, balancing and enhancing the multi-exposure visible light and near-infrared image through a rapid HDR fusion algorithm to obtain a high-definition image. The method comprises the steps that firstly, a high-robustness preprocessing graph is obtained, concentricity CEM, gap unevenness AGF and texture deviation TDM are extracted from the preprocessing graph, feature fusion output is carried out, according to an environment self-adaption threshold fusion index, a defect level is output, and correction or alarm is triggered.

Implementations of the disclosed subject matter provides a system having an artificial light source disposed at a distance from earth or other celestial body, where the artificial light source is configured to project one or more beams of light onto the earth or other celestial body. The system may include a photovoltaic array disposed in an area on the earth or other celestial body that is 200 m-20 km or more in any one dimension that is configured to receive the projected one or more beams of light and is configured to convert the received one or more beams of light into electricity.

Aspects of seaweed bioreactor apparatus, methods, and systems are described. One aspect is a method comprising: scaling a seaweed biomass and a culture medium in a light-transmitting vessel located in a light-controlling enclosure; and sampling or harvesting the seaweed biomass without unsealing the light-transmitting vessel by: causing, with a controller, a light source to output an artificial light into the light-controlling enclosure that illuminates the seaweed biomass; outputting, with a sensor in communication with the controller, sensory data associated with the culture medium; modifying, with the controller, at least one of the artificial light or the culture medium responsive to the sensory data; intermittently mixing and cutting, with the controller, the seaweed biomass in the light-transmitting vessel; and removing a portion of the seaweed biomass from the light-transmitting vessel and the light-controlling enclosure. Related seaweed bioreactor apparatus, methods, and systems also are described.

The invention discloses an environment adaptive digital display equipment color and brightness adaptive correction system, and relates to the technical field of display equipment control, and the system comprises a first collection module which is used for collecting interference artificial light source data of a target display within a radius R1, and constructing an artificial light interference data set, the analysis module is used for analyzing the artificial light interference data set, the second acquisition module is used for acquiring natural light, and for a target display, the illumination intensity gzd of the real-time natural light and the real-time reflected light intensity fsd are acquired to obtain the natural light interference intensity Itotal. The system acquires the illumination intensity gzd of real-time natural light and the intensity fsd of real-time reflected light, obtains the natural light interference intensity Itotal and acquires interference artificial light source data within the radius R1, and can formulate a targeted correction scheme according to different interference light source types and intensities, adjust the brightness and color of a target display in time, and adapt to the environment.

The invention discloses an artificial light environment for promoting the growth of cereal crop seedlings, the light environment spectrum is composed of blue light and red light, and in terms of light quality spectrum integral percentage, the blue light accounts for 10-25%, and the red light accounts for 90-75%; wherein the peak value of the blue light ranges from 425 nm to 445 nm, and the peak value of the red light ranges from 680 nm to 700 nm. The light environment provided by the invention is mainly used for carrying out light source irradiation treatment in the seedling stage of cereal crops, and the purpose of cultivating strong seedlings is achieved.

The photochemical smog box comprises a box body, an opening is formed in the top of the box body, a cover body matched with the opening is arranged at the top of the box body, a lifting platform, an air inlet pipe and an air outlet pipe are arranged in the box body, the lifting platform can move in the height direction, and a reactor is arranged on the lifting platform; the reactor comprises a reaction chamber defined by materials with light-transmitting characteristics, the air inlet pipe and the air outlet pipe are both communicated with the reaction chamber, an artificial light source is arranged in the box body, when the photochemical smog box serves as an indoor smog box, the cover body covers the box body to form a closed space, the artificial light source is turned on to simulate sunlight, and the photochemical smog box is formed. When simulated light irradiates into the reactor and needs to be used as an outdoor smog chamber, the cover body is opened, and the lifting platform drives the reactor to rise to a preset position, so that the reactor is completely exposed to sunlight, the sunlight cannot be shielded by the side wall of the chamber body, and the actual sunlight is switched to be used as a light source; therefore, an outdoor smog chamber experiment under actual sun illumination can be carried out.

The invention provides a yellow long-afterglow ceramic low-temperature overglaze color pigment as well as a preparation method and application thereof, and belongs to the technical field of ceramic pigments. Noctilucent powder SrAl2O4: Eu < 2 + > and Dy < 3 + > and fluorescent powder Y3Al5O12: Ce < 3 + > or Y3Al5O12: Ce < 3 + > and Gd < 3 + > are combined according to different proportions to form a yellow long-afterglow luminescent pigment, then the yellow long-afterglow luminescent pigment is mixed with a glaze surface combination auxiliary agent, and the low-temperature overglaze color pigment with yellow long-afterglow emission is obtained by utilizing a new principle and technology of energy transfer and reflection-compensation, can be fired on a glaze surface at a relatively low temperature, and has the characteristics of long-afterglow emission and long-afterglow emission. Bright yellow body color is displayed under sunlight or an artificial light source; in the dark, afterglow emission which is adjustable from yellow green to yellow is shown. The yellow long-afterglow ceramic low-temperature overglaze color pigment provided by the invention can improve the unique decorative effect of porcelain, enrich the color of the porcelain and improve the added value of ceramic products, and is a novel luminous pigment with excellent performance.

The invention relates to a controlled environment agriculture for plant cultivation using artificial lights. The artificial lights comprise an array of light emitting diodes fabricated using gallium nitride, each gallium nitride operable over a wavelength of 380 nm to 900 nm. The array of light emitting diodes include at least one integrated drive controller and at least sensor. The controlled environment agriculture includes at least an imaging device and a control module. The control module comprises a machine learning module and an aggregator module configured connected to at least one sensor and at least one imaging device to aggregate various parameters including environmental data, and plant phenotyping data associated with the plants. Based on the aggregated The control module determines the spectral requirements of the plants for optimal growth based on at least one parameter aggregated from at least one sensor, at least one imaging device and a database to adjust the spectral light in the array of light emitting diodes in real time. The control module is associated with a power module for regulating the electrical power required by the array of light emitting diodes to optimize power consumption. In at least one implementation, the control module and the power module are dynamically controlled in real time by implementing machine learning algorithms to automate the controlled environment for agriculture to optimize and control the spectral and power requirements of the array of light emitting diodes.

The invention belongs to a photobioreactor in the field of bioengineering, and particularly relates to a photobioreactor system with novel LED spectrum design for microalgae cultivation. Which comprises a reaction tank (used for containing algae liquid and assembling a special spectrum light source transparent pipeline and related equipment), a special spectrum light source transparent pipeline combination acting on a reaction system, and an automatic transparent pipeline cleaning device, and is characterized in that a multi-spectrum light source combination lamp strip is placed in the special spectrum light source transparent pipeline; the multi-spectrum light source combined lamp strip comprises a main light source and an auxiliary light source, and the continuous spectrum design parameters of the main light source are as follows: the peak wavelength is 465-495 nm, the main wavelength is 510-535 nm, and the continuous spectrum range is 380-780 nm; according to the continuous spectrum design of the auxiliary light source, the light absorption peak of the microalgae is used as the peak wavelength, multiple continuous spectrums are formed, and the spectrum range is 380 nm to 780 nm. According to the invention, the problem of spectrum design defects of indoor artificial light culture of microalgae and the problem of wall adhesion of microalgae in a transparent pipeline of a special spectrum light source are solved, the photosynthesis efficiency of microalgae is improved, and the yield of microalgae is increased.

An apparatus, method and computer program product are provided for determining a state of visibility for a road object. In one example, the apparatus receives temporal data, calculates an orientation of a light source with respect to a road object using the temporal data, and predicts a state of visibility for the road object based on the orientation of the light source. In another example, the apparatus determines an artificial light source associated with a road object, receives attribute data associated with the artificial light source, determines a state of the artificial light source using the attribute data, and predicts a state of visibility for the road object based on the state of the artificial light source.

Provided is a photosynthetic plant growth control method capable of effectively regulating the growth of photosynthetic plants. 【Solution means】Irradiation with main light (such as sunlight, artificial light, etc.), which is light stronger than the light compensation point for photosynthesis of the photosynthetic plant to be cultivated, and additional signal light, which has a light intensity smaller than that of the main light, is light weaker than the light compensation point, and the light intensity varies temporally (such as only random vibration light, a combination of random vibration light and periodic vibration light, etc.) are performed. The irradiation of the additional signal light is performed simultaneously with the main light or during a time period when the main light is not irradiated. The additional signal light has a waveform formed so as not to have periodicity, and the action of causing photosynthesis is random vibration light having a lower level than that of additional signal light having periodicity (such as periodic vibration light).

The invention discloses a flagpole illumination control method and a flagpole lamp, and the method comprises the steps: carrying out the time alignment collection of electric signals of all photovoltaic panels under a unified time step, and generating front and back array signals and corresponding intensity sequences; calculating spatial distribution characteristics in the arrangement direction according to the intensity sequence to form a front gradient quantity and a back gradient quantity; comparing the relations between the gradient quantities on the two sides and a first threshold value and a second threshold value within a preset duration, and judging the day and night state; therefore, the light-emitting units of the lighting pieces on the two sides are synchronously turned on or turned off. According to the technical scheme, day and night states can be accurately distinguished under the conditions of artificial light interference and environment shielding, misjudgment and flickering are avoided, and stable visibility of a flag in night illumination is guaranteed.

The invention relates to the technical field of unmanned plant factories, and discloses an unmanned plant factory production method and system, and the method comprises the following steps: S1, a seedling raising stage, S2, a transplanting stage, S3, a plant growth stage, S4, a factory management stage, S5, a plant harvesting stage, S6, a product packaging stage, and S7, a nutrient soil recycling process. By means of indoor planting and laying of the top plate made of the light-transmitting material on the top, the whole plant factory mainly adopts a natural light source for illumination, so that energy consumption is reduced, and potential negative effects of an artificial light source on plant growth are reduced; the difference value between the illumination intensity required by the growth of the plants and the actual illumination intensity is independently detected, and light is independently supplemented to the plants, so that the plants can obtain the optimal illumination condition in any growth stage, the energy utilization efficiency is improved, and the growth environment of the plants is optimized.

The invention provides a self-adaptive adjustment method and system for light sensation illumination of a hotel environment, and is applied to the field of data processing. According to the method, multiple illumination collection points are arranged in the hotel room, multi-dimensional optical information such as illumination, color temperature and spectral deviation is collected in real time, and the regional synchronism judgment of the illumination change trend is combined, so that misjudgment caused by single-point abnormity, local shielding or reflective interference can be effectively checked, and when the trend is judged not to be synchronized, the judgment result is more accurate. And further introducing a calculation mechanism of an illumination weight, a user-defined illumination state and a natural light contribution value, dynamically identifying an actual influence range of the natural light in a space, and accurately distinguishing action areas of the natural light and the artificial light, so that an illumination suppression strategy is dynamically adjusted, and excessive or insufficient light supplementation is avoided.

The present invention relates to an adhesion device (1) for culturing microalgae that increases the density of microalgae cultures and their biomass productivity. The device comprises a body (2) with an upper opening that contains a culture medium (3), which occupies half of its volume; a plurality of rotary discs (4) as a supporting surface on which the microalgae cells (5) adhere, promoting their growth to form a biofilm, said plurality of discs (4) being fixed to a horizontal rotation shaft (6), which passes through the body (2), and being equally spaced apart, the location of the rotation shaft (6) inside the body (2) being such that said discs remain semi-submerged in the culture medium (3); gas-liquid diffusers for gas transfer and bubbling in the culture medium (3); at least one moisture sensor and at least one temperature sensor for monitoring the moisture and temperature, respectively, of the gas phase inside the body (2) of the device (1); at least one temperature sensor for monitoring the temperature of the culture medium (3); an upper cover (7) on the upper opening of the body (2), which prevents the culture medium (3) and microalgae cells (5) from being exposed to the outside environment; a lighting board (8) arranged between each pair of discs (4) of the plurality of discs (4), being located on the rotation shaft (6) and arranged in slots (71) in the cover (7) so that said lighting boards (8) are not in contact with the inside of the body (2); and an electric motor to provide slow and accurate rotation of the rotation shaft (6), wherein the body (2) and the cover (7) are made of a transparent or translucent material that allows sunlight or artificial light to pass through.

The application provides an outdoor tracking-based photobiomodulation method and device. The method comprises: determining effective outdoor time of a user according to collected light exposure data of the user; determining a light compensation level of the user according to the effective outdoor time and a target effective outdoor time; determining photobiomodulation parameters and simulated light compensation parameters according to the light compensation level; when the user is in a specified light compensation scene, outputting artificial light simulating outdoor natural light characteristics according to the simulated light compensation parameters; and performing photobiomodulation on the user according to the photobiomodulation parameters, preset wavelength red light and near-infrared light. The application can achieve the purpose of a comprehensive system that comprehensively simulates outdoor light environment characteristics and integrates photobiomodulation, and provides a more complete solution for myopia prevention and control.

The present invention provides topical and internal skin preparations containing an extract of soapwort cultivated under artificial light with a specific wavelength range. [Solution] The soapwort of the present invention is cultivated by irradiating it with artificial light having a specific wavelength range, and the extract exhibits excellent collagen production promoting effect, MMP inhibitory effect, hyaluronic acid production promoting effect, cell proliferation promoting effect, and antioxidant effect. Furthermore, topical or internal skin preparations containing these effects are particularly effective and also exhibit excellent safety and stability. The soapwort extract of the present invention can be used not only in the field of beauty, such as preventing skin aging, but also in the field of medicine, such as suppressing functional decline due to aging, and is expected to be applied to cosmetics, foods, quasi-drugs, and pharmaceuticals.

The invention discloses a manufacturing method of an artificial light-transmitting stone embossment, which is realized by the following steps of: mixing bio-based polyurethane resin with aliphatic isocyanate, adding fillers such as polyacrylate, organic silicon, nano silicon dioxide, glass beads and the like, then dispersing, carrying out vacuum defoaming to obtain slurry, and drying to obtain the artificial light-transmitting stone embossment. A layered pouring process is combined with an air pressure impressing technology for forming, the period is shortened through UV-thermal dual curing, and the embossment is manufactured. The bottleneck of a traditional process is broken through, epoxy resin is replaced with bio-based resin, the environment-friendly requirement is met, a diffuse reflection system is formed by nano-silica and glass beads, the light transmittance is larger than or equal to 70%, the surface is glossy, soft and free of glare, the aliphatic isocyanate endows the anti-yellowing characteristic, and compared with a traditional unsaturated polyester and epoxy resin method, the anti-yellowing performance is good. The light transmittance, the weather resistance, the mechanical property and the environmental protection property are remarkably improved, and the light-transmitting and weather-resistant composite material is suitable for high-end building decoration, art relief and other scenes and has the industrial mass production and personalized customization capacity.

The present invention belongs to the technical field of photothermal performance detection of building envelope structures, and specifically is a spray-type light-transmitting roof photothermal performance detection device and its detection method. The spray-type light-transmitting roof photothermal performance detection device of the present invention comprises: an external environment simulation device, including an external environment box, an artificial light source, and the artificial light source is installed in the external environment box; a light-transmitting roof test piece is installed at the lower side wall of the external environment box; a spray device, including a nozzle, and the nozzle is located below the artificial light source and above the light-transmitting roof test piece; a heat metering device, including a heat metering box and a plurality of detection sensors; a supply and return air system, which is used to circulate airflow into the heat metering device; a supply and return water system, which is used to supply water to the supply and return air system; a control system, which is used to control the external environment simulation device, the heat metering device, the supply and return air system, the supply and return water system and the spray device. The present invention can accurately evaluate the photothermal performance of a light-transmitting roof under spray conditions.

Miniature lighting device characterized in that it consists of one or more elements made entirely or partially of phosphorescent material, wherein these elements absorb energy during exposure to natural or artificial light and release it again in the dark in the form of visible afterglow.

The invention discloses a non-uniform illumination underwater image reply method based on discrete entropy gain, which is applied to the technical field of computer vision and image processing, and aims to solve the problem that an existing method based on image enhancement or a physical model is difficult to give consideration to global brightness balance and local detail reservation. Particularly, the problems of light spot overexposure and gradual change shadow caused by an artificial light source cannot be effectively inhibited are solved; according to the method, an underwater image under non-uniform illumination is modeled by using a vignetting component, a central overexposure region in the modeled vignetting component is constructed by using an exponential term, and an edge shadow region in the modeled vignetting component is constructed by using a polynomial term. Dynamic modeling of exponential term construction is realized through brightness distribution characteristics in the centroid region; optimal modeling of polynomial construction is achieved through discrete entropy minimization, and image attenuation caused by the influence of an extra light source of an underwater medium is effectively recovered through a gain function.

The invention belongs to the technical field of plant factories, and particularly relates to a light environment optimization control method and system and an intelligent illumination regulation and control multi-layer plant factory based on photoelectric agriculture. Light environment optimization control specifically comprises the steps that multi-factor data of a plant growth environment is collected, a photosynthetic rate prediction model based on a least square support vector machine is constructed, and a photosynthetic rate prediction model is constructed; and predicting photosynthetic rate response curves in different light environments. And determining an inflection point of a photosynthetic rate curve through differential operation, and determining an optimal light quality ratio and a light environment regulation strategy based on cost-photosynthetic effect analysis. The factory roof is combined with the photovoltaic panel and the light uniformizing plate, and optimal utilization of natural light and artificial light is achieved. The energy utilization efficiency is improved, the growth efficiency and yield of plants are remarkably improved by precisely regulating and controlling the light environment, and the system is suitable for efficient planting of various plants.

The light energy charging lamp comprises a shell, a circuit board and a rechargeable battery are arranged in the shell, a light source is arranged on the circuit board, the battery is electrically connected with the circuit board and the light source, and a light transmitting area is arranged on the shell corresponding to the light emitting position of the light source. A perovskite photovoltaic panel used for converting light energy into direct current is further arranged in the shell, a solar controller is further arranged on the circuit board, and the solar controller is used for adjusting the voltage and current of the direct current generated by the perovskite photovoltaic panel and storing the voltage and current in the battery so as to achieve automatic charging of the battery. When people use the lamp indoors, the lamp can be charged through weak natural light or an artificial light source, when people use the lamp outdoors, the lamp can be charged through sunlight, and long-time convenient illumination is guaranteed for people. Moreover, due to automatic charging, manual charging operation is omitted, light energy is effectively utilized, and resource waste is reduced. And on the other hand, no charging wire or mains supply is needed for charging, so that carrying and using outside are facilitated.