170 results about "Light attenuation" patented technology

The invention provides a liquid crystal display lightening parameter self-adaptive calibration method, and relates to the technical field of image display. The method comprises the following steps: firstly, establishing a characteristic matrix and a parameter library of liquid crystal molecules, and dynamically correcting according to a real-time working state; and based on the characteristic matrix and the parameter library, executing pixel-level forward prediction on the input image, and generating a color error distribution diagram by solving a coupling solution of a liquid crystal molecule dynamic response differential equation and a backlight attenuation compensation equation. And taking the error distribution diagram as input, obtaining a gradient optimization direction of the calibration parameter mapping diagram through back propagation calculation, and iteratively approaching the optimal pixel value compensation amount in each frame period. And injecting a test pulse into the characteristic pixel point, capturing a voltage response curve through a sampling circuit, and converting the voltage response curve into a real-time correction value mapping graph. And finally, carrying out weighted fusion on the real-time correction value mapping graph and the pixel value compensation amount to generate a calibration parameter mapping graph. The self-adaptive calibration of the display parameters is improved, and the display consistency and the color accuracy are effectively improved.

The invention discloses a light attenuation assembly, an optical module, an optical device and related equipment. The light attenuation assembly comprises a half-wave plate, a first polarization beam splitter and a second polarization beam splitter which are sequentially arranged along a light path. The half-wave plate is used for converting the first linearly polarized light into second linearly polarized light, and the second linearly polarized light can be decomposed into third linearly polarized light and fourth linearly polarized light of which the polarization directions are perpendicular to each other; the first polarization beam splitter is used for dividing incident second linearly polarized light into third linearly polarized light and fourth linearly polarized light, reflecting the third linearly polarized light to the second polarization beam splitter, and transmitting and filtering the fourth linearly polarized light at the same time; and the second polarization beam splitter is used for reflecting and outputting the third linearly polarized light and transmitting and filtering the residual fourth linearly polarized light. Through the light attenuation assembly, the quality of the output laser beam can be improved.

The invention relates to the technical field of street lamp monitoring and control, and particularly discloses an intelligent street lamp monitoring and control system and method based on the Internet of Things. Comprising an edge calculation module, a multi-modal data fusion module, an edge processing module, a health prediction module and the like. The method comprises the following steps: collecting and preprocessing multi-dimensional data of a street lamp, and generating a multi-modal feature vector by using a Kalman filtering algorithm; outputting a reference PWM duty ratio through the reinforcement learning Q network, and obtaining an optimal PWM duty ratio in combination with light attenuation compensation analysis; constructing a residual life prediction model based on the long-short-term memory network, predicting the residual service life of the street lamp, and determining the optimal operation power in combination with the power consumption time period; and executing corresponding control operation on the street lamps based on the optimal PWM duty ratio and the optimal operation power, and monitoring and displaying abnormal street lamps at the same time. Intelligent monitoring and accurate control of the street lamp are realized, illumination quality and energy conservation are considered, the service life can be pre-judged, timely maintenance is realized, and the intelligent and efficient management of the urban street lamp is improved.

The invention discloses a control system for detecting light attenuation and self-compensation of an LED heating lamp panel, and relates to the field of semiconductor wafer heating and cleaning, the system collects illumination data of the LED heating lamp panel through a spectrum detection unit, a main control unit compares real-time illumination data with target illumination data, and then the input power of the lamp panel is adjusted to realize self-compensation; the temperature detection unit and the current detection unit respectively monitor the temperature of the lamp panel and the current of the power supply loop, and stop the self-compensation operation in case of abnormality; after illumination collection or power adjustment is completed every time, the lamp panel enters a zero-power input stage to be cooled; after the self-compensation is completed, the main control unit transmits the adaptive power value to the equipment upper computer so as to update the process parameters; according to the system, automatic detection and accurate compensation of light attenuation of the LED heating lamp panel are achieved, manual intervention is not needed, the stability of the light power density of the LED heating lamp panel is guaranteed, the equipment loss is reduced, and the wafer cleaning quality and the production efficiency are improved.

The ultra-thin module comprises a light guide plate, first light source assemblies for illuminating the light guide plate are arranged on the two sides of the light guide plate; the second light source assembly is arranged on one end face of the light guide plate, the side wall of the second light source assembly is provided with a light guide line, and the lower surface of the light guide plate protrudes downwards to form a protruding block matched with the light guide line so as to supplement a light source to the middle of the light guide plate; the first reflecting film is fixed on the lower surface of the light guide plate to reflect light to a preset direction; a rubber frame; through the arrangement of the light guide wire, the convex block, the second mounting block, the second light source and the second light guide piece, the device can well reduce the condition of low brightness of a backlight center caused by light attenuation under the condition that the display screen is thin, so that the light supplementing effect is achieved, and in the later use process, the brightness of the display screen is improved. The brightness of the center and the edge of the display screen can be controlled to be switched on and off respectively, and energy consumption is reduced.

The invention relates to the technical field of mine lighting, in particular to an intelligent mining intrinsically safe LED lighting lamp strip and a lighting system.The lamp strip comprises an insulation assembly, a plug-in assembly and a lighting assembly, and the system comprises a production judgment module, a light attenuation judgment module, a lighting regulation and control module, a regulation and control detection module, a shadow judgment module and a shadow compensation module; the system predicts a high-dust working condition through vibration analysis and evaluates light attenuation by fusing dust concentration and coal rock absorbance; regulating and controlling the brightness and spectrum of the lamp strip according to the evaluation result; the regulation and control effect is verified through closed-loop detection; identifying a dynamic shadow area based on the equipment pose and the light field distribution; and finally, in combination with the gas concentration safety constraint, performing safety-first local compensation or brightness-first overall brightening on the shadow area. The problems that instantaneous light attenuation caused by cooperation of dust outbreak at the moment of cutting and strong light absorption of a coal wall cannot be effectively handled, and dynamic shielding shadow caused by movement of a huge machine body of mining equipment cannot be effectively handled are solved.

The invention provides an exposure system and photoetching equipment. The exposure system comprises a light source; the detection module is used for collecting a light intensity signal of the light source and sending the light intensity signal to the control module; and the control module is used for receiving the light intensity signal and controlling the light source to reach the set light intensity according to the light intensity signal. Thus, in the exposure system, the light source, the detection module and the control module form a closed-loop control system, the control module adjusts the light intensity of the light source according to the real-time light intensity collected by the detection module, so that real-time light attenuation compensation of the light source is realized, and the exposure system can adaptively adjust the output light intensity of the light source.

The application provides a light information processing method and device, electronic equipment, computer program product and computer readable storage medium; the method comprises: acquiring real light information corresponding to a real scene; acquiring virtual light information corresponding to a virtual scene; comparing and calculating the virtual light information and the real light information to obtain light difference information; performing light attenuation calculation based on the light difference information to obtain configuration parameters of at least one supplementary light source, wherein the supplementary light source is used for supplementary lighting; matching each supplementary light source configuration parameter with a lamp database to obtain a target lamp corresponding to each supplementary light source in the lamp database; taking each target lamp and the configuration parameter corresponding to each target lamp as configuration information, and performing scene light synchronization based on the configuration information. Through the application, the accuracy of synchronizing the light between the virtual scene and the real scene can be improved.

Even if the lens device does not retain information about light attenuation, it generates information about the T-value of the lens device. [Solution] The processing device 7 obtains information regarding the F-number of the lens device L attached to the interchangeable lens imaging device C from the lens device, obtains information regarding the light intensity attenuation of the lens device, and generates information regarding the T-number of the lens device using the information regarding the F-number and the information regarding the light intensity attenuation.

The invention discloses an environment art immersive collaborative design system based on multi-source data fusion, belongs to the technical field of computer data processing, and particularly relates to an immersive display system based on data processing and intelligent control. According to the system, real-time positions, flowing speeds and staying states of audiences are collected through the people flow interaction behavior recognition module, a display space is divided into a plurality of subareas, and space-time corresponding control over light and shadow and a sound field is achieved; a three-dimensional illumination matrix is established, and local shadow and brightness attenuation are compensated in combination with illumination attenuation dynamic calculation and an adaptive enhancement mechanism; the sound environment analysis module constructs a three-dimensional sound pressure distribution model, and realizes sound field equalization and local compensation according to sound absorption attenuation calculation and a sound pressure correction strategy. The system realizes synchronous response of light, sound and audience behaviors through multi-source data fusion and dynamic feedback adjustment, improves the space immersion, reduces the no-load energy consumption of equipment, and is suitable for various scenes such as night games in scenic spots, garden display, cultural performance and the like.

The invention relates to the technical field of image recognition, in particular to an intelligent recognition method and system for benthonic animals and a storage medium. The method comprises the following steps: acquiring underwater image sets of different water depths of a target area by using a preset underwater camera; determining the illumination attenuation of different water depths according to the pixel gray level change conditions of the underwater image sets of different water depths, and correcting the underwater image set of the target water depth according to the illumination attenuation of different water depths to obtain a target underwater image set; performing minimum observation unit segmentation on the target underwater image set, and dividing benthonic animal candidate image areas according to a segmentation result; and according to the edge feature change condition of the benthonic animal candidate image region, identifying a benthonic animal target image region, binding the benthonic animal target image region with a target water depth, and summarizing to generate a benthonic animal water depth distribution report. According to the method, the influence of illumination, noise and background interference is effectively reduced, and the recognition precision and environmental adaptability of the benthonic animals are improved.

This application provides a key parameter testing system and method for fiber-optic single-photon avalanche diodes (SPADs). The system uses a testing module to drive multiple SPADs under test, generates laser trigger signals based on parameter testing requests, and acquires pulse parameters for each SPAD under test under different testing modes with and without light source illumination. A laser generation module generates an initial pulse signal based on the laser trigger signal; a laser adjustment and transmission module adjusts the light attenuation value of the initial pulse laser and separates it into multiple test light sources with equal laser power; a control module monitors the laser power of the laser generation module and configures the laser adjustment parameters of the laser adjustment and transmission module; and the system determines the key parameters of each SPAD under test based on the pulse parameters. The system provided in this application can quickly detect the key parameters of multiple SPADs while ensuring detection accuracy, and the parameter testing process is simple and intuitive.

A non-foaming aqueous composition is applied to a fabric substrate to provide a non-foaming light-attenuating coating in the resulting coated fabric substrate that produces reduced outdoor light glare. The non-foaming aqueous composition has 5-50% solids and a zero shear viscosity of 100-1000 mPa-sec at 25°C. The composition has: i) 0.1-20 wt% of porous particles, and optionally an opaque colorant; ii) 4-20 wt% of a film-forming binder material that includes at least a chlorinated polymer; iii) 2-12 wt% of a white inorganic particulate filler material having a refractive index (RI) greater than 2 and a median particle size less than 1 pm; and iv) 5-16 wt% of a white low-density particulate hydrated alumina having a median particle size less than or equal to 3 pm. The non-foaming aqueous composition can be applied to a fabric substrate to reduce outdoor light glare without changing indoor light tinting and light blocking properties.

The utility model relates to a kind of device of pulse laser pulse sub-string, including pulse laser, laser attenuation device, laser beam-reducing device, laser polarization device, wave sheet, Pockels cell, output mirror, waveform detection device, and output mirror is to the waveform detection device output first light beam and to the original light path reflection second light beam;Laser polarization device side is also configured full mirror;Pockels cell is connected with high-voltage pulse generator, pulse laser is also connected with digital delay pulse signal generator, and digital delay pulse signal generator is used to send synchronization signal to high-voltage pulse generator to control high-voltage pulse generator to generate voltage pulse when pulse laser emits laser beam reaches Pockels cell.This application realizes the stable control and output of pulse sub-string by the electro-optic modulation characteristics of Pockels cell, compared with traditional method of improving laser repetition frequency, implementation is simple, and use component is less, while guaranteeing stability, reduce cost.

This invention discloses a method for retrieving global ocean optical attenuation coefficients based on remote sensing reflectance. It obtains the remote sensing reflectance at any wavelength below the sea surface and the ratios related to inherent optical quantities using satellite-provided remote sensing data. For clear seawater and relatively clear coastal seawater, the QAA_v5 algorithm is used to obtain the absorption and backscattering coefficients at any wavelength; for turbid coastal seawater, the QAA-RGR algorithm is used. Different models for solving the scattering coefficients are used for different sea areas. The global ocean optical attenuation coefficient is obtained by adding the absorption and scattering coefficients. This invention divides the global ocean into regions and provides models for solving the absorption and scattering coefficients for different regions. It can directly calculate the optical attenuation characteristics of different sea areas using satellite-provided data, improving the reliability of solving the optical attenuation coefficient and enabling dynamic monitoring of the variation of the global ocean optical attenuation coefficient.

The application provides a pressure-sensitive paint image light attenuation compensation method, device, equipment and medium, and relates to the technical field of image processing. The method compensates the light attenuation of the mean image corresponding to the image of the measured object based on the attenuation rate of the pressure-sensitive paint under the action of the light source, can compensate the normal attenuation of the pressure-sensitive paint to the mean image, improves the accuracy of the mean image, and further improves the accuracy of the pressure field.

The utility model discloses an LED energy-saving lamp tube in the technical field of LED lamp tubes, which comprises an LED lamp tube, a heat dissipation mechanism arranged behind the LED lamp tube, a control mechanism arranged between the heat dissipation mechanism and the LED lamp tube, lamp bins arranged at the left end and the right end of the LED lamp tube, a first air inlet bin fixedly installed at the rear end of each lamp bin, a first heat dissipation fan installed inside each first air inlet bin, and a second air inlet bin fixedly installed inside each first heat dissipation fan. The left end of the first air inlet bin is fixedly connected with an air blowing pipeline, the air blowing pipeline is communicated with the first air inlet bin, the right end of the SMA spring body is fixedly provided with a push block, the LED energy-saving lamp tube is additionally provided with a heat dissipation mechanism and a control mechanism, and the heat dissipation mechanism achieves efficient heat diffusion through a double-fan pressurization air channel and a directional flow guide design; the junction temperature of the LED chip is pressed below a light attenuation threshold value; the control mechanism depends on accurate temperature-sensitive triggering and passive driving characteristics of an SMA spring body, the energy consumption of the system is remarkably reduced while the heat dissipation efficiency is guaranteed, and the inherent contradiction between heat dissipation and energy consumption of the closed LED lamp is solved through cooperation of the control mechanism and the SMA spring body.

The utility model discloses an adjustable light-emitting diode (LED) fish gathering lamp with a wide-angle lighting and forced air cooling structure, which comprises a lamp body shell, a lamp arranged in the lamp body shell, a heat dissipation fan, a wide-angle lens arranged at the bottom of the lamp body shell and used for increasing the lighting range, and a light diffusion plate arranged at the bottom of the lamp body shell. A heat dissipation air channel used for enhancing the heat dissipation effect is arranged in the lamp body shell, an adjustable installation part is arranged on one side of the lamp body shell, the illumination intensity and the illumination range are optimized, 165-degree wide-angle illumination is adopted to cover a fishing boat operation area, and the illumination uniformity is greatly improved. And a heat dissipation air channel is optimized, and forced air cooling is adopted, so that the junction temperature of the LED is greatly reduced, and light attenuation is delayed. The fishing boat has the functions of being adjustable in installation and convenient to adjust, adjustment at any time in daily use is facilitated, and various installation modes of the installation part are suitable for various fishing boat scenes.

According to the household ornamental fish culture lamp with the size capable of being automatically adjusted, flexible adaptation of the size of the lamp is achieved through a modular splicing lamp shell structure, and the lamp can adapt to fish tanks of different sizes through simple splicing; the illumination distribution uniformity is effectively improved by adopting the micro-structure light uniformizing plate, and the problems that the center of a traditional lamp is too bright and the edge is too dark are solved; an intelligent control system based on a light attenuation model and a spectrum optimization algorithm can automatically calculate and adjust optimal illumination parameters according to parameters such as fish tank depth and biological types, so that growth requirements of different aquatic organisms are ensured; the control parameters are continuously optimized through an adaptive learning mechanism, long-term stable precise illumination management is realized, and a complete intelligent illumination solution is provided for household aquarium fish culture.

The utility model discloses an infrared light-emitting device based on a liquid infrared quantum dot light conversion element, an imager, a diagnosis and treatment instrument and a beauty instrument. The infrared light-emitting device comprises an excitation light source, the liquid infrared quantum dot light conversion element, a light transmitting element, a refrigerating system, a light condensing element and a light guide mechanism. The liquid infrared quantum dot light conversion element is arranged on the side, emitting light, of the excitation light source, and the liquid infrared quantum dot light conversion element, the light transmitting element, the light condensing element and the light guide mechanism are sequentially arranged in the direction away from the excitation light source. The refrigerating system is arranged on the outer side of the liquid infrared quantum dot light conversion element. In the scheme of the utility model, the liquid infrared quantum dot light conversion element adopted by the infrared light-emitting equipment has higher light-emitting efficiency, and the solvent of the liquid infrared quantum dot light conversion element can also play a role in heat dissipation so as to slow down light attenuation. By arranging the refrigerating system, efficient heat dissipation is conducted on the infrared quantum dot solution, light attenuation of the quantum dot light conversion element can be effectively avoided, and stable light output of the infrared light-emitting equipment is achieved.

The utility model discloses an LED lamp bead capable of improving light spots and luminous efficiency, which comprises an LED support, an LED wafer, a lead frame, a red fluorescent sheet and a green fluorescent sheet, the LED wafer is mounted in an inner cavity of the LED support and is connected with the lead frame mounted at the lower end of the LED support through a connecting wire, the red fluorescent sheet is positioned above the green fluorescent sheet, and the red fluorescent sheet is connected with the lead frame through a connecting wire. The red fluorescent sheet and the green fluorescent sheet are both installed on the top of the inner cavity of the LED support and located above the LED wafer, and the red fluorescent sheet and the green fluorescent sheet are connected through transparent adhesive glue. According to the utility model, the structure is simple, the design is reasonable, the blue-light LED wafer is matched with the red fluorescent sheet and the green fluorescent sheet, the problems of low LED luminous efficiency, poor color consistency in batch production and the like can be solved in a fluorescent sheet stacking mode, the light spot problem can be improved, the light attenuation is smaller, and safe illumination and healthy illumination can be realized.

This application relates to an apparatus for testing the ultraviolet (UV) light decay of photovoltaic (PV) cells. The apparatus includes a housing with an internal testing space, a first mounting platform laterally positioned within the testing space to support the bare PV cell to be tested, and a conductive element within the testing space. The two ends of the conductive element are connected to a first electrode and a second electrode of opposite polarity on the bare PV cell, respectively, to short-circuit the PV cell. During testing, a hot carrier cycling effect is formed within the bare PV cell, and the electron-hole kinetic energy excited by UV photons can reach several eV. Some electrons cross the SiNx / Si interface barrier and directly bombard the passivation layer structure, inducing a cascade effect of material damage, thereby improving the accuracy of the test results. Furthermore, since the bare PV cell is tested directly, there is no need to laminate the bare PV cell and glass to form a PV cell, shortening the time required to complete one test and thus improving testing efficiency.

This invention relates to the field of thin film preparation, and discloses a method and system for preparing dimming films based on PET and liquid crystal. The method includes: first, acquiring the transmittance parameters of the PET substrate and the phase transition temperature data of the liquid crystal material; constructing an interlayer framework; forming an activated interface layer on the surface of the PET-liquid crystal composite through plasma treatment; coating a liquid crystal dispersion to obtain a pre-cured film; gradient curing based on its thickness distribution data using an ultraviolet light source to form a dimming functional layer; collecting the transmission spectrum curves of the dimming functional layer under different electric field intensities; calculating the duty cycle value of the liquid crystal molecules; configuring a transparent conductive electrode pattern accordingly; and topologically designing it as a uniquely controlled electrode array. Defect clusters are identified and repaired by calculating the electronic control adjustment value; the dimming attenuation parameters of the repaired film are analyzed; and finally, a PET-liquid crystal composite thin film preparation scheme is formulated. This invention can improve the preparation efficiency of dimming films.

The invention discloses a perovskite quantum dot scintillator as well as a preparation method and application thereof. The chemical formula of the perovskite quantum dot scintillator is CsPb0. 7Sr0. 3Br3, the invention relates to the technical field of preparation of inorganic semiconductor luminescent materials. According to the perovskite quantum dot scintillator, the preparation method and the application thereof, the prepared CsPb0. 7Sr0. 3Br3 perovskite quantum dot scintillator has good stability and plasticity, meanwhile, the complex process and high cost of a film type traditional X-ray scintillator are avoided, the technological process is simplified, large-scale and large-area industrial production is facilitated, and the preparation method is suitable for industrial production. And the B-site doped CsPb0. 7Sr0. 3Br3 perovskite quantum dots have high quantum efficiency and single-index fluorescence decay life, and can better absorb X-rays and convert the X-rays into visible light for emission, so that efficient detection of the X-rays is realized.

A method of obtaining a clear endoscopic image includes emitting light from an endoscope into a body cavity; receiving light reflected from the body cavity at a variable-attenuator, the variable-attenuator comprising a plurality of light attenuating elements that are aligned with a plurality of pixels of at least one the image sensor; controlling the variable-attenuator to attenuate light passing through the plurality of light attenuating elements and into the plurality of pixels of the at least one image sensor; capturing an image with the plurality of pixels of the at least one image sensor.

The utility model discloses a backlight module and a display device, and relates to the technical field of display. The backlight module comprises a back plate, a light bar, a light guide plate and an adhesive assembly, wherein the light bar comprises a light plate and a plurality of light sources arranged on the light plate; the light guide plate comprises a light guide plate body and a plurality of light guide structures arranged on the light inlet side of the light guide plate body at intervals, the light guide structures are inserted between every two adjacent light sources, and the bottom faces of the light guide structures are fixed to the lamp panel in an adhesive mode. The adhesive assembly is arranged on the light incident side of the back plate, the adhesive assembly comprises a first adhesive piece, the first adhesive piece is provided with a back adhesive surface, the first adhesive piece comprises a first horizontal adhesive part and a vertical adhesive part which are formed by bending and are perpendicular to each other, the lamp panel is adhered to the back adhesive surface of the first horizontal adhesive part, and the side surface of the light guide structure is adhered to the back adhesive surface of the vertical adhesive part. The backlight module not only can reduce light attenuation after aging test, but also can avoid image quality abnormity caused by light bar displacement, and the display effect of the backlight module is improved.

The invention relates to the technical field of lamps, in particular to an efficient heat dissipation LED lighting lamp which comprises a lamp body and further comprises a grid screen mechanism arranged on the surface of the lamp body, and the grid screen mechanism makes contact with the lamp body; the circulation pipeline is made of heat conduction metal and is designed to be in a ring-in-ring mode, the height of the ring on the outermost side of the circulation pipeline is larger than that of the ring on the middle side, and the circulation pipeline is designed to be arranged on the surface of the grid screen mechanism in a semi-buried mode; the medium storing and conveying mechanism is arranged below the lamp body, and the medium storing and conveying mechanism is connected with a circulating pipeline; the heat-conducting medium in the storage barrel is extracted through the micro pump, enters the box body through the first connecting pipe and the second connecting pipe, then flows into the circulating pipeline, takes away heat gathered by the grid screen body and flows back to the storage barrel, heat exchange is conducted with air in cooperation with the heat-conducting fins at the bottom of the storage barrel, the temperature of the lamp beads is reduced, then light attenuation and color cast are relieved, and the service life is prolonged.

The invention discloses a method for preparing a polyacrylonitrile-coated perovskite quantum dot light-emitting textile film through electrostatic spinning, and belongs to the technical field of quantum dot light-emitting material preparation. The method comprises the following specific steps: co-dissolving a perovskite quantum dot precursor and polyacrylonitrile to obtain a spinning solution; performing electrostatic spinning on the spinning solution to obtain a primary luminous textile film; and finally, carrying out thermal crosslinking treatment on the primary luminous textile film to obtain the polyacrylonitrile-coated perovskite quantum dot luminous textile film. The method is easy and convenient to operate, a thermal injection method and an anti-solvent extraction method do not need to be adopted, large-area preparation of the non-lead light-emitting film can be achieved, and the obtained light-emitting textile film has excellent light-emitting performance (such as high fluorescence quantum efficiency) and environmental stability (such as moisture resistance and light attenuation resistance) and has good application prospects in the fields of display, LED illumination and the like.

The utility model discloses a light-emitting diode (LED) lamp based on a superconductive heat pipe, which comprises a heat conductor, and the heat conductor is a VC uniform temperature plate or a heat pipe. An LED lamp bead is installed on the front portion of the heat conductor in a tightly attached mode and connected with a wire, and an insulating coating is coated between the wire and the outer surface of the heat conductor. And the heat conductor is locally connected with the heat dissipation piece. One end of the heat conductor is embedded into the heat dissipation piece, and a heat dissipation fan is installed at the tail end of the heat dissipation piece. The LED lamp has the technical effects and advantages that the radiating structure is optimally designed, and the heat conductor adopts the VC uniform temperature plate or the heat pipe, so that the radiating effect is greatly improved, the LED lamp bead is continuously kept at a relatively low environment temperature, and the performance of the LED lamp bead cannot be degraded due to long-time heating. Therefore, the service life of the lamp is prolonged, and light attenuation is avoided.

The invention discloses an adjustable phototropism test system, and belongs to the technical field of phototropism test.The adjustable phototropism test system comprises an optical test base and a culture water tank used for testing algae plants, and an adjustable spectrum light source is arranged above the culture water tank; an inner spacer ring, an outer spacer ring and an edge spacer ring which are used for separating a water area in the culture water cabin are fixed at the top end of the culture water cabin through a plurality of mounting seats. Through the arrangement of the light isolation plate and the deviation adjusting assembly, the angle of the light isolation plate can be precisely adjusted through a hydraulic system, three stable areas with different illumination intensities can be created in the culture water cabin, and the phenomenon that illumination in natural water is attenuated along with depth is simulated; researchers are allowed to research behaviors of the same seaweed under different light intensities at the same time or compare preferences of different seaweeds on the light intensities, meanwhile, shimmering of water surface is simulated through a reverse deflection mode, and physiological and behavior responses of the seaweeds under the more real and changing light environment of dynamic light are conveniently researched.