168 results about "Led illumination" patented technology

The invention provides a focusing method, device and equipment. The method comprises the following steps: determining pixel offset between a red channel image and a green channel image of a tissue slice; the red channel image and the green channel image are a red channel image and a green channel image of a tissue slice in a ghosting image captured by the color image sensor when a red light filter, a green light filter and double optical wedges in the focusing module are modulated at the same time; determining an out-of-focus distance according to the pixel offset and a preset corresponding relation; the preset corresponding relation is the corresponding relation between the pixel offset and the defocus distance; and focusing according to the out-of-focus distance. According to the method provided by the embodiment of the invention, the problem that positive and negative defocusing directions cannot be distinguished through a single-frame image in a phase shift detection automatic focusing technology based on image monochromatic double-hole modulation is solved, and the problem of time waste caused by high-speed switching of an illumination light source in an automatic focusing technology based on red-green double-LED illumination is solved; and meanwhile, the problem that a phase shift detection automatic focusing technology based on pupil segmentation images is relatively small in focusing range is solved.

The invention relates to the technical field of intelligent lighting control, and discloses an LED lighting energy-saving control system based on data judgment, which comprises a data sensing module, a scene recognition module, a strategy storage module and a driving control module, the data sensing module is used for collecting personnel dynamic behavior information and environment illumination intensity information in an illumination area; the scene recognition module outputs a corresponding scene recognition signal by receiving, fusing and analyzing the sensing data; a mapping relation table is stored in the strategy storage module; and the driving control module queries the mapping relation table through the scene identification signal to obtain the illumination control parameter of the target, and converts the illumination control parameter into an instruction signal for driving the LED lamp. According to the invention, through multi-dimensional data fusion and scene adaptive control, refined energy saving of the lighting system is realized on the premise of ensuring comfort.

The invention discloses an LED lamp energy-saving control system and method, and relates to the technical field of LED illumination. The LED lamp energy-saving control system comprises a fault positioning module, an operation state analysis module and an environment adaptability evaluation module. According to the method, the change condition of PWM adjusting parameters of the LED lamp in the PWM dynamic dimming process is monitored in real time, fault positioning and prompting are carried out based on the change condition of the PWM adjusting parameters, then the external interference condition of the LED lamp in the PWM dynamic dimming process is analyzed, and finally the influence degree of the luminous efficiency of the LED lamp in the fault positioning process is analyzed. Therefore, the fault positioning efficiency of the LED lamp in the dynamic dimming process is improved, and the problem that the relevance between the fault positioning efficiency and the light emitting efficiency of the LED lamp in the dynamic dimming process is not high in the prior art is solved.

A smart home monitoring device is configured to plug into an electrical outlet and includes a multi-sensor array, excluding audio and video sensors, for monitoring environmental conditions, behavioral patterns, and odor-related indicators within a monitored environment. The device includes Bluetooth Low Energy communication with angle-of-arrival capability to enable sub-meter asset tracking, and supports home automation control through programmable automation frameworks such as IFTTT or Node-RED to initiate safety responses. The system further provides multi-tiered burglar detection through correlated event analysis across multiple sensor inputs, and generates health-related risk indicators based on detected patterns. Visual indicators, including multi-color LED illumination and blinking patterns, are used to communicate alert types and severity levels. The system enables non-intrusive monitoring while supporting proactive safety, security, and health management.

The invention provides an LED outdoor light pollution suppression system and method in combination with a generative adversarial network, and relates to the field of intelligent illumination. In an outdoor LED illumination scene, a cloud teacher model and a local student model are organically combined through a cold start mechanism and real-time online guidance, so that the LED outdoor light pollution suppression efficiency is improved. And adaptive control of multi-target constraints such as illumination uniformity, energy consumption, glare index and the like in a variable environment is realized. In addition, cold start is carried out in different scenes through the model snapshot library, new snapshots are solidified when the performance is excellent, and a cumulative evolutionary mechanism is formed. Thus, when the system encounters a similar scene again, the existing excellent snapshots can be loaded immediately, the algorithm efficiency is improved, and the scheme robustness and the long-period self-adaptive capacity are enhanced.

The invention discloses a coding LED illumination light source and an active hyperspectral imaging system, and effectively overcomes the defects of insufficient luminous flux and low signal-to-noise ratio in the current active hyperspectral imaging system based on the LED illumination light source. The system comprises an LED control module, an LED light-emitting module, a heat dissipation module, a focusing and dodging module, an imaging lens, an image detector, a computer and the like. The method is characterized in that coding illumination is carried out through a plurality of LEDs with different wavelength combinations based on a spectrum calculation principle, the illumination intensity of the active hyperspectral imaging system is multiplied, and the signal-to-noise ratio and the sampling speed of the system are improved. The invention provides a novel active hyperspectral imaging mode which can effectively meet the application requirements in different scenes such as high-resolution microscopic hyperspectral imaging and video-level high-speed hyperspectral imaging.

The invention discloses an LED lighting control system based on wireless networking, and relates to the technical field of lighting control, node position parameters Pos are obtained through calculation, so that a spatial relation table Srt is generated and updated, the spatial relation of a lamp can be automatically updated after nodes are newly added, nodes are replaced or the environment is changed, and manual coordinate reconfiguration is not needed; the uniformity evaluation module accurately identifies a space region with insufficient illumination or excessive illumination by calculating an illumination uniformity coefficient Luc, an over-bright ratio Ovl and a dark ratio Drk, and generates a region set Seg, so that a problem is positioned to a specific region coordinate; and finally, the illumination uniformity is issued to corresponding nodes in the node set Set through wireless networking to execute dimming, so that automatic optimization of the illumination uniformity is completed under the condition of not depending on manual intervention. The system dynamically adapts to changes of a space structure and use conditions, and long-term stable and energy-saving illumination uniformity control is achieved.

The invention discloses a preparation method of a low-blue-light LED panel lamp, and belongs to the technical field of LED illumination. According to the method, through blue light chip screening, composite fluorescent powder system optimization, multi-layer optical structure design and heat dissipation coordinated regulation and control, the radiation power proportion of the blue light wave band (430-460 nm) is smaller than or equal to 5%, meanwhile, it is guaranteed that the color rendering index Ra is larger than or equal to 85, and the lighting effect is larger than or equal to 100 lm / W. The core innovation of the LED lamp is that the double-effect eye protection layer of quantum dot doped silica gel and cerium yttrium aluminum garnet composite fluorescent powder is adopted, and the optical matching design of the micro-nano texture light guide plate and the gradual change type diffusion film is combined, so that the technical problems that an existing low-blue-light LED lamp is low in lighting effect, poor in color rendering property, uneven in blue light filtering and the like are solved. The blue light hazard level of the prepared LED panel lamp reaches RG0 level, and the LED panel lamp is suitable for long-time close-range illumination scenes such as classrooms, offices and bedrooms and has wide application prospects.

The utility model discloses an illumination adjusting device, and relates to the technical field of illumination adjusting devices, the illumination adjusting device comprises a cultivation rack, a cultivation tray, a light gathering plate, an illumination adjusting plate, an LED illumination plate, a spacing rod, a mounting box and a sunshade net, the outer wall of the spacing rod is provided with a storage motor, the inner wall of the mounting box is provided with an adjusting thread groove, and the storage motor is connected with the storage motor. An adjusting threaded rod is mounted on the inner wall of the adjusting threaded groove, an extrusion plate is mounted on the outer wall of the adjusting threaded rod, and a sunshade net is arranged on the inner wall of the mounting box. By installing the shading mechanism, one end of a shading net is moved into the mounting box, then an adjusting threaded rod is rotated to move in an adjusting threaded groove, an extrusion plate moves, the shading net is fixed into the mounting box, the shading net and an LED illumination plate move synchronously, and the distance is fixed due to the fact that the length of a distance rod is fixed. If the illumination intensity is reduced, the illumination intensity can be reduced, and the LED lamp can be used according to different requirements.

The present technology comprises a single-aperture snapshot multi-spectral imaging device generally consisting of at least a color camera, a customized Octa-Band optical filter, a motorized zoom lens, and an 8-wavelength multi-color LED illumination system. The present technology also comprises a method about designing time sequences and combinations of LED illuminations, along with an unmixing algorithm for 8 MSI images generation. According to the present device and method, it is capable of fast multi-spectral image acquisition speed (<100 milliseconds), fast post-processing speed based on adopting a single aperture system without disparity correction calculation, adjustable FOVs, smaller form factors and lower costs, and high precision of spectral information.

The invention belongs to the technical field of polymer light diffusion plates, and relates to a micro-nano composite structure polymer light diffusion plate and a preparation method and application thereof.The preparation method comprises the following steps that S1, an aluminum substrate is sequentially subjected to high-strength oxidation, denudation, mild oxidation and chambering treatment; constructing an aluminum oxide substrate with a micron pit and ordered nano gradient hole composite structure; s2, nickel is deposited on the aluminum oxide substrate through electrochemical deposition; further modifying fluorosilane to obtain a flexible reusable nickel template; s3, coining a flexible reusable nickel template on the polymer plate, or spin-coating the pre-polymerized precursor on the surface of the polymer plate and then coining; and after curing, stripping the flexible reusable nickel template to obtain the polymer light diffusion plate with the micro-nano composite structure. The micro-nano composite structure polymer light diffusion plate prepared by the invention has relatively high total light transmittance and diffusion light transmittance, has efficient radiation cooling and super-hydrophobic antifouling capabilities, and is used in LED illumination display and / or heat dissipation.

A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are various diffusion surfaces placed on the sidewall surface of the cylindrical opening, as well as its upper planar surface and the exit surface of the lens. Lunes can also be configured on the sidewall surfaces of the cylindrical opening. The combination of lunes, diffusion elements, and the overall configuration of the lens provides improved color mixing and output brightness using three interactions in a first portion of light and two interactions in a second portion of light. Those interactions includes two refractions either with an intermediate reflection or not, all of which are necessary to achieve the improved performance of the multi-color LED illumination device and lens hereof.

The invention discloses an LED lighting electricity consumption abnormity monitoring method and system based on the Internet of Things, and relates to the technical field of intelligent lighting and energy-saving control. The system comprises a power utilization detection terminal, a wireless communication module, a data management platform, a front-end display terminal and an early warning module, and the power utilization detection terminal integrates a current sensor, a voltage sensor, an illuminance sensor and a control module and is used for collecting real-time power utilization information and environmental parameters of LED lighting equipment; the wireless communication module is used for uploading the collected data to a remote server; the data management platform analyzes the collected data, compares the data with an energy-saving threshold value set by the system, and judges whether an abnormal power consumption condition exists or not; the early warning module sends alarm information through instant messaging means such as a nailing interface, and assists operation and maintenance personnel in positioning abnormal equipment in time and taking energy-saving optimization measures. The system has the characteristics of energy conservation, high efficiency, intelligent monitoring and timely early warning, and is suitable for various indoor and outdoor LED illumination application scenes.

The application relates to the technical field of isotope detection, in particular to an isotope abundance and ratio detection device and method based on molecular emission spectrum. The device comprises a computer and a long-pulse laser unit, an optical path transmission unit, an LED illumination focusing unit, a three-dimensional displacement table and a spectrometer connected with the computer. The existing viewpoint considers that long-pulse laser is not conducive to micro-area excitation and high-resolution spectrum acquisition due to its wide pulse width, and is less applied in isotope subtle spectral line difference identification. The application breaks through the molecular emission cascade mechanism, enhances the signal intensity, realizes the possibility of micro-area high-resolution isotope molecular detection, generates plasma by in-situ laser ablation, induces molecular emission spectrum, realizes rapid, accurate and real-time in-situ detection of the isotope abundance and ratio in the sample. The device has few optical elements, simple structure and convenient optical path adjustment, and is conducive to miniaturization and on-site application promotion.

A photochemical reactor can include a plurality of flow cells whose illuminated internal surfaces coincide with a Φ = Φ * iso-flux boundary. Identical cells can be connected by short, small-diameter interconnects to form a cell chain of pitch p, and multiple chains can be arranged in parallel to meet throughput while maintaining residence-time and pressure-drop limits. Each cell can be illuminated by opposed, orthogonally oriented LEDs in 2-LED, 4-LED, or 6-LED topologies. In some embodiments, 6-LED illumination can be provided by a wireless cube LED apparatus having six emitters on orthogonal faces, a centrally located receiver coil, rectifier, and current driver. The cube can insert into keyed pockets that set optical standoff δ and orientation. A controller can sweep a transmitter frequency to select an operating frequency f_T* that maximizes received power for the installed receiver-coil geometry.

The utility model relates to the technical field of test tools, in particular to an electrostatic discharge tester fixing tool, which is characterized in that a portal frame is fixed on a base, a vertical lifting sliding table is arranged below the portal frame in a sliding manner, a horizontal product carrying plate is connected to the vertical lifting sliding table, and the product carrying plate is used for placing a product to be tested; a first clamping plate is fixed to the portal frame, a first support plate is vertically fixed to the first clamping plate, a second support plate is vertically fixed to the first support plate, a second clamping plate is connected to the inner side of the second support plate through an adjusting screw, and the position of the second clamping plate corresponds to the position of the first clamping plate. An ESD experimental instrument is clamped and fixed between the second clamping plate and the first clamping plate; the portal frame is connected with an LED lighting assembly used for lighting a product. Compared with the prior art, the fixing jig for the ESD tester has the advantages that by arranging a clamping structure for an ESD experimental instrument, the handheld operation fatigue can be effectively relieved, the product carrier plate can horizontally move and lift, the accurate alignment of an instrument gun head and a product can be favorably realized through the LED illumination and the magnifying glass, and the working efficiency is improved.

Dual Function Orthodontic Bracket with LED illumination

The invention discloses a direct-current-bias-free high-power LED visible light signal transmission method and system, and relates to the technical field of optical communication, and the method comprises the steps: carrying out 64QAM-OFDM modulation and IQ modulation on original audio and video data, carrying out AC coupling peak-to-peak value extraction and DC component filtering, and then carrying out single-power-supply amplification and pre-equalization; and a driving positive voltage signal is generated to drive a high-power LED to emit light, and an optical communication signal is generated. Through a low-loss alternating-current coupling transmission mode, the modulated real signal peak-to-peak value is subjected to coupling transmission and single positive power supply amplification, so that the signal is changed into positive voltage to control the LED light intensity and form an LED optical communication signal, direct-current voltage does not need to be introduced into a digital domain, the problem of bandwidth reduction is avoided, and the signal transmission efficiency is improved. The direct-current bias voltage of the LED can be kept stable, the LED works in a linear modulation area, bandwidth expansion is carried out through the pre-equalization circuit, and the functions of LED illumination and high-speed communication can be considered.

The early-warning communicator comprises an early-warning communicator body, an inclined section is arranged on the surface of the upper end of the early-warning communicator body, a camera is fixedly connected to the surface of the inclined section of the early-warning communicator body, and an LED illumination lamp is arranged on the outer surface of the inclined section of the early-warning communicator body. A microphone and a loudspeaker are arranged on the outer surface of the early warning communicator body, a starting switch is arranged on the outer surface of the lower end of the early warning communicator body, a signal amplifier is fixedly connected to the inner side surface of the early warning communicator body, and an antenna is arranged at the upper end of the signal amplifier. The antenna extends to the outer side of the upper end of the early warning communicator body, a storage battery is fixedly connected to the inner side surface of the early warning communicator body, the illumination assembly and the camera are obliquely distributed, wireless signal transmission is achieved, a signal amplifier is arranged in the early warning communicator body, communication type signals and image signals are conveniently transmitted, and the functionality of elevator early warning communication is improved.

Solar Powered Music Player with LED Illumination

The invention belongs to the field of preparation and application of organic high-temperature phosphorescent materials, and particularly relates to an ionic organic high-temperature phosphorescent material as well as a preparation method and application thereof. The ionic organic high-temperature phosphorescent material has the following characteristics: (1) the raw materials are easily available, the synthesis is simple, the aqueous phase preparation is realized, and the environment-friendly and pollution-free effects are realized; (2) different subject and object materials are selected, and high-temperature long-afterglow luminescence is realized through pairwise doping; and (3) the material is compounded with an LED device, so that LED stroboflash is eliminated, and the harm of LED illumination to human eyes is reduced. It can be expected that the ionic organic high-temperature phosphorescent material will be a novel long-afterglow material with huge commercial potential.

The utility model belongs to the field of LED illumination, and particularly relates to a heat conduction plastic radiator and an LED lamp. Specifically, the heat-conducting plastic radiator comprises a heat dissipation part and a shell wrapping the heat dissipation part, an LED substrate can be fixed in the heat dissipation part, the heat dissipation part and the shell are both made of heat-conducting plastic, and the heat conductivity coefficient of the heat dissipation part is larger than that of the shell. By means of the specific design of the high-thermal-conductivity plastic material combination structure of the heat dissipation part, the heat dissipation effect of existing insulating thermal-conductivity plastic serving as a radiator is improved, the LED lamp can select an LED substrate with higher power, the structure is simple, the application range is wide, and the heat dissipation effect is better. The scheme provided by the utility model is more suitable for high-salt-mist, humid and acid-base environments such as offshore and chemical raw material exposed production environments. The technical problems that the requirements for salt fog resistance and acid and alkali resistance of the LED lamp in the environment are high, and metal (such as aluminum and copper) cannot be used as a structural material are solved.

The invention discloses a linear dimming type mixed light illumination system and method based on AI fuzzy control, and belongs to the technical field of LED illumination, the system collects information such as ambient brightness, time, human body activity and the like in real time through an environment sensing module, processes data through an AI-driven fuzzy control algorithm, and outputs target color temperature and brightness level through reasoning. And then, accurate mixed light output is realized through color temperature and brightness coordinate conversion and linear dimming driving. In addition, the system also adopts a chromaticity stability feedback and user preference learning mechanism to continuously optimize the dimming and toning effects. The problems of safety problem, light color drift and lack of intelligent adjustment capability caused by stroboflash of digital dimming in the prior art are solved. By introducing a linear dimming mode and applying an AI fuzzy control algorithm, the system can perform dynamic adjustment according to environmental changes and automatically select the most suitable dimming and toning strategy, thereby ensuring that accurate and stable color temperature and brightness are output in different environments.

The invention belongs to the technical field of coating preparation, and provides a high-thermal-conductivity radiation refrigeration heat dissipation coating for an LED illumination module and a preparation method of the high-thermal-conductivity radiation refrigeration heat dissipation coating. The preparation method comprises the following steps: firstly, cooperatively coating a hexagonal boron nitride sheet with dopamine and tannic acid, and performing in-situ deposition of zinc oxide to obtain a sheet-shaped heat-conducting filler with low interface thermal resistance; secondly, hydrothermally generating magnesium silicate by utilizing the lignocellulose template, locally carbonizing in a nitrogen atmosphere, and grafting aminopropyl silane to form a heat-conducting framework; ytterbium-doped calcium titanate hollow spheres are prepared through a citric acid complexation method, an aluminum oxide-phosphate double-layer shell is constructed, three kinds of functional particles are dispersed with methyl-phenyl siloxane resin, a coupling agent and a low-volatility solvent at a high speed according to a set proportion, and the high-thermal-conductivity radiation refrigeration heat dissipation coating of the LED illumination module is obtained after vacuum defoaming.

The application discloses a kind of detection ethinyl estradiol test paper and preparation method thereof, comprising the following steps: (1) preparation Sb2WO6@NiS complex, surface adsorption ethinyl estradiol antibody, i.e. first antibody obtains photo-thermal signal probe;(2) assembly test strip, ethinyl estradiol antigen and second antibody are respectively fixed on detection area and quality control area;(3) after photo-thermal signal probe is mixed with sample liquid to be measured, test strip sample pad end is inserted into the mixed solution and carries out chromatography;(4) detection photo-thermal signal: with near infrared LED illumination detection area and with thermal imaging or temperature measuring equipment acquisition temperature, according to the linear relationship between detection area temperature and sample concentration to be measured quantitative analysis.The application detection mode is flexible, linear range is wide, sensitivity is high, and specificity is good.

The present application relates to the field of illumination and modified atmosphere combined preservation technology, and discloses a method for preserving litchi and maintaining Vc of litchi by using LED illumination combined with modified atmosphere packaging. The method comprises the following steps: picking fresh litchi, immediately screening out litchi without disease and insect pests and mechanical damage, retaining complete fresh branches and leaves, and precooling the screened litchi; after the precooling of the litchi, the dry end of the litchi is immersed in a nutrient supplement hydrogel, the litchi is placed flat, is packaged by using a fruit and vegetable film, and a slow-release antibacterial sheet is arranged inside; the packaged litchi is placed in a thermostat with an ambient temperature of 4-10 DEG C and a humidity of 85-95% for preservation, and the illumination intensity of white light or red and blue light is 70-90 μmol·m ‑2 ·s ‑1 The present application uses red and blue light combination, white light illumination to promote photosynthesis to form an internal microcirculation system for low-temperature storage for the first time to preserve litchi, effectively prevents loss of nutritional ingredients, and can also increase the vitamin C content of litchi to a certain extent.

An LED illumination apparatus includes a plurality of the LEDs mounted on an LED substrate, a plurality of housings disposed on the LED substrate and each having a projection to be fitted with a corresponding one of a plurality of positioning holes formed in the substrate, a plurality of lenses fixed to the housings, and a cover disposed over the lenses and the housings. Each one of the housings includes connection parts configured to be positioned through fitting between the positioning holes and the projections of an adjacent housing to connect them between the positioning holes and the projections of an adjacent housing connect them together; interconnected housings held in position by the cover.

A multi-waveguide illumination panel has a base sheet with a front surface and an opposing back surface. A plurality of planar optical waveguides is attached to the back surface at distinct locations. Each planar optical waveguide is optically coupled at an edge to a LED source. Light extraction structures are formed in or on a surface of each planar optical waveguide and configured to emit light towards the base sheet. The light extraction structures associated with a first planar optical waveguide define a first two-dimensional pattern, and the light extraction structures associated with a second planar optical waveguide define a second two-dimensional pattern different from the first. The LED sources may be individually controllable. Optional elements include reflective layers covering back surfaces of the waveguides, diffusive layers covering front surfaces of the waveguides, opaque light control layers positioned near the LED sources, and an image print on the base sheet.

The utility model provides a miniature brushless ducted fan with LED (light-emitting diode) illumination, which comprises an outer shell, a lampshade is arranged on the front surface of the outer shell, a through air duct is arranged at the top of the outer shell, and an inverted turbofan is arranged in the air duct. The charging port is formed in the front face of the outer shell, the control switch and the indicator lamp are installed on the top of the outer shell, the lamp panel and the LED lamp beads are installed in the lampshade, the combination of the fan and the lighting function is achieved, the use requirements of a user in different scenes are met, and especially when the fan is used during night travel and outdoor camping, the user can enjoy cooling brought by the fan and can also enjoy the illumination function. According to the miniature brushless ducted fan, the LED lamp beads are distributed in an array mode, different light-emitting patterns can be formed by controlling the light-emitting sequence or brightness of the LED lamp beads, the functionality of the miniature brushless ducted fan is increased, and meanwhile the miniature brushless ducted fan can be made to be more practical.

The invention belongs to the field of fungus cultivation, and particularly relates to a fungus growth regulation and control device based on LED illumination, the fungus growth regulation and control device comprises a goods shelf, the two ends of the goods shelf are fixedly provided with a gear box and a vertical plate respectively; a plurality of groups of regulation and control units for supplementing illumination to the mushroom sticks are arranged between the gear box and the vertical plate; the regulation and control unit comprises a gear rotationally arranged on the inner wall of the gear box and a rack slidably arranged on the inner wall of the gear box, and the gear and the rack are arranged in an engaged mode; a first power source used for controlling the racks to move vertically is fixedly arranged at the top of the goods shelf. The LED lamp tube can be switched and cleaned by controlling the vertical movement of the rack through the meshing effect of the gear and the rack, scattering and interference of condensate water generated due to surface low temperature after a traditional LED lamp tube is switched on and off circularly on the illumination intensity can be reduced, and the acting effect of each illumination period is guaranteed.