128 results about "Led array" patented technology

The application provides a kind of steel band surface defect multispectral fusion high-speed detection device and detection method, belong to steel band surface defect detection technical field, including foundation and main support, the main support is door type structure, across the both sides of steel band production equipment, bottom is connected with foundation using embedded bolt.The application is irradiated to steel band surface by LED array light source respectively using white, ultraviolet light and red light source, and the image of steel band surface after being irradiated by different light sources is collected using CCD camera respectively, so that when image recognition is carried out, the image of white light source is identified according to the brightness of reflected light, the defect of different depth is identified, the image of ultraviolet light source is identified by shortening wavelength to break through diffraction limit, the resolution and contrast of surface defect detection are improved;The image of red light source enhances the color development effect of small scratch on metal surface;Through the image recognition of different light colors, the detection and recognition accuracy can be effectively improved, and the influence of sundries and reflection on detection result is reduced.

This utility model discloses a visible light communication transmitting device, relating to the field of visible light communication technology. The visible light communication transmitting device includes a format conversion circuit, a bandwidth expansion circuit, a level bias circuit, and a modulation and LED array circuit connected in sequence. The input terminal of the format conversion circuit receives a high-speed differential electrical signal, and the output terminal outputs a serial electrical signal. The input terminal of the bandwidth expansion circuit receives the serial electrical signal, and the output terminal outputs an inverted high-speed signal. The input terminal of the level bias circuit receives the inverted high-speed signal, and the output terminal outputs a forward high-speed signal. The input terminal of the modulation and LED array circuit receives the forward high-speed signal, and the output terminal outputs visible light. This utility model can reduce the hardware cost of the device while ensuring a large bandwidth for the visible light communication device.

The application discloses a kind of precision detection equipment of capacitor metallized film, it is related to detection tool technical field, including positioning plate;The application is matched between support assembly and visual component, the detection of film precision and defect is realized;Through the cooperation between visual camera, fill light and LED array board, the surface defects such as scratch and stain on the top surface of film are detected, and the light transmission defects such as pinhole and impurity inside film can also be detected, to realize the comprehensive detection of surface and internal defects;Through parameter calibration unit, according to the actual parameters of film, combined with equipment basic parameters and preset correction coefficient, the key detection parameters are calculated, when detecting different specifications of film, parameter calibration unit automatically calculates optimal parameter and compares with current setting value, obtains adjustment amount and is wirelessly transmitted to control terminal to prompt operator to adjust, if still not up to standard after adjustment, it is prompted again, until parameter setting meets the requirements.

A portable lighting device capable of being used in multiple use configurations, defined by distinct positions and distinct states, to provide the user of the lighting device with greater operating flexibility, including the ability to be worn on an article of clothing. The portable lighting device includes a housing having an integral securement recess, an adjustable, deployable lighting element including a flexible LED array affixed to a flexible backing support member, and a coupling support extending from a central portion and that is pivotably coupled to the front portion of the housing. An electronics package includes a power source contained within the housing and operably coupled to said lighting element. An attachment means extends from the housing and is adapted to removably connect with an article of closing worn by a user of the device. Depending upon the particular need for illumination, the lighting element can be adjusted and deployed into a variety of states and positions.

The application discloses a method for transferring Micro-LED based on chemical dynamic bond stamping, and the Micro-LED transfer method is realized by a polyborosiloxane (PBS) polymer stamp containing a dynamic boron-oxygen bond, a Micro-LED array chip based on a weakened structure and a target hetero-substrate based on glue spraying adhesion treatment. The application utilizes the property that the polyborosiloxane (PBS) polymer stamp exhibits a viscous flow state under low pressure stress stimulation and exhibits a solid state under high peeling stress, realizes a high switching ratio of the grabbing force of the Micro-LED, and thus realizes efficient pickup and placement of the Micro-LED. The transfer method is simple and fast, has the characteristics of high-efficiency transfer of wafer-level small-size Micro-LED chips, and has a very broad application prospect in the fields of Micro-LED display, flexible optoelectronics and photoelectric information communication.

Systems and methods for automatically determining parasitic capacitance (PC) correction parameters for a Light Emitting Diode (LED) pixel. When a test trigger signal is received by a PC detector, the PC detector starts a test process to measure the PC correction parameters of the LED pixel coupled to the PC detector. The PC detector determines the PC correction parameter for the corresponding LED pixel based on the detected PC characteristics and stores the PC correction parameter of the LED pixel with respect to a location of the LED pixel in the LED array to facilitate centralized PC correction on the LED pixel based on the PC correction parameter retrieved based on the pixel location.

This invention discloses a method for preparing a series of bismaleimide products, relating to the field of high-performance thermosetting resin monomer synthesis technology. The method includes a pre-reaction of maleic anhydride and aromatic diamine at a molar ratio of 2.0–2.2:1 under nitrogen protection at 60–90°C. The resulting amic acid intermediate is pumped into a twin-screw extruder. Irradiation is performed in the vacuum dehydration ring-closing zone (or imidization zone) using a 365 nm UV LED array, coupled with a 0.3–1.0 wt% benzophenone / triethanolamine photoinitiator system. The ring-closing reaction is completed at 110±5°C and a vacuum of -0.090 to -0.098 MPa, with a total residence time of 30–90 seconds, yielding bismaleimide products with an acid value ≤0.1 mg KOH / g and a ring closure degree ≥98.5%. Rapid product switching for a series of products can be achieved by changing different aromatic diamines. This invention eliminates the use of organic solvents, reduces energy consumption by more than 55%, and has a batch-to-batch acid value variation coefficient of less than 2%, meeting the requirements of electronic-grade packaging materials. Furthermore, the process conditions are fundamentally different from existing technologies, demonstrating significant technological advancements.

This application discloses an optical interconnect system and signal transmission method based on an RC Micro-LED array for use in signal transmission systems. The system includes an optical emitting module, an optical receiving module, an optical path, an optical coupling module, and an optical decoupling module. The optical emitting module outputs a light source control signal based on input data through a signal modulation module. The light source module uses multiple RC Micro-LED light-emitting units to output optical signals. The optical coupling module couples the optical signals into the input optical path for transmission. The optical decoupling module decouples the signals. The optical receiving module acquires the optical signals through a photodetector and converts them into electrical signals. The demodulation module demodulates the electrical signals, and the data processing module outputs the restored data. This application enables low-power, high-bandwidth, and high-speed optical interconnect communication.

This application discloses a wafer-level semiconductor color display integrated chip, its fabrication method, and its application. The integrated chip includes a wafer-level driving carrier, full-color light-emitting units, an insulating dielectric layer, and an electrical connection structure with thermal conductivity. The driving carrier includes multiple independent driving units, and each full-color light-emitting unit includes multiple sub-pixels. Each sub-pixel includes at least three light-emitting units of different colors stacked sequentially. Each driving unit drives a corresponding light-emitting unit. The insulating dielectric layer is distributed between the driving carrier and the full-color light-emitting units, as well as between different semiconductor light-emitting layers within the full-color light-emitting units. The electrical connection structure connects each light-emitting unit to its corresponding driving unit and forms a thermally conductive path to accelerate heat exchange between the integrated chip and the external environment. This application can achieve pixel colorization of micro-LED arrays with direct emission of different colors from inorganic semiconductors, and improve their light extraction efficiency, resolution, and operational stability.

This utility model relates to the field of lighting control technology. To address the technical problem of poor control flexibility caused by the incompatibility of existing LED street light ambient lighting systems with ambient light control and remote management, this utility model discloses an IoT-based remote controller for LED street light ambient lighting, including an IoT module, an ambient light circuit, and a power control circuit. The power supply to the ambient light circuit is input through the power control circuit, and the selection of the two LED arrays in the ambient light circuit is controlled by the IoT module U13. The power control circuit controls the power supply status of the ambient light circuit based on the ambient light intensity and the control signal from the IoT module. By integrating the IoT module and a communication antenna, remote control of the LED street light ambient lighting system is achieved, improving the system's intelligent management level. A photodiode is introduced for ambient light sensing, combined with a multi-stage transistor logic control circuit and a thyristor as the main control switch, automatically cutting off the power supply path when the light is strong.

A sensing system for classical string instrument bows includes a device body conforming to a bow's geometry and formed from a semi-rigid or elastic polymer. Three-dimensional structurally integrated force-sensitive resistors (3DSI-FSRs) are printed into or onto the device body at user touch locations to measure applied forces. A sensing module detects forces, bow orientation, and linear and rotational acceleration. A user feedback module may provide haptic vibrations, visual indicators through an LED array or LCD display, and wireless communication for transmitting data to an external device. A removable fastening mechanism may secure the device body to the bow. The system enhances player technique analysis, enables real-time feedback, and provides objective biomechanical data for training, injury prevention, and performance optimization.

The embodiment of the present application relates to the technical field of intelligence toy auxiliary equipment, and discloses an LED puzzle bean positioning indication method and system based on light sensing control, which comprises receiving puzzle bean pattern data, the puzzle bean pattern data comprising light-emitting sequence and light color information of each lamp bead; controlling at least one current lamp bead to emit light to generate light according to the light-emitting sequence and the light color information; the light is conducted from the side of the puzzle close to the LED array to the side of the puzzle facing outward through the transparent peg column to form a light spot, and the spatial position of the light spot and the color of the light spot are used to indicate the placement position of the corresponding color puzzle bean; the real-time illuminance at the current transparent peg column is monitored in real time according to the photosensitive sensor; when it is determined according to the real-time illuminance that the transparent peg column meets the preset shielding condition, a shielding confirmation signal is generated, the current lamp bead is controlled to be extinguished, and the next lamp bead is switched to emit light according to the light-emitting sequence and the light color information until the puzzle creation is completed. The method provided by the present application significantly improves the creation efficiency and accuracy.

This invention relates to the field of visual inspection technology, and particularly to a full-angle layered RGB combined light source, comprising a light source base, a coaxial light source assembly, a first ring light source assembly, a second light source assembly, a third ring light source assembly, a fourth ring light source assembly, and a fifth ring light source assembly. A light source through-hole is provided on the light source base, and the coaxial light source assembly is located directly above the through-hole. The first, second, third, fourth, and fifth ring light source assemblies are sequentially arranged from top to bottom on the opposite side of the light source base opposite the coaxial light source assembly. Each of the coaxial light source assembly, the first, second, third, fourth, and fifth ring light source assemblies employs an independently controlled RGB three-color LED array. This invention improves the accuracy and efficiency of detection while reducing system complexity.

This utility model discloses a cabinet door panel display structure, relating to the field of disinfection cabinet technology. It includes a cabinet door frame, on which a display panel, a circuit board, a control area light shield, and an array area light shield are mounted. The circuit board has a control display panel portion and an LED array display panel portion. The control display panel portion is equipped with a control module and control indicator lights. The LED array display panel portion is equipped with an LED array light group. The control display panel portion is connected to the cabinet door frame via the control area light shield. The LED array display panel portion is connected to the cabinet door frame via the array area light shield. The control area light shield and the array area light shield are spaced apart on a plane parallel to the front surface of the circuit board. The deformation of the control area light shield and the array area light shield can be significantly reduced compared to using a single large light shield, effectively reducing lamp pressure and misalignment during light shielding.

This invention relates to the field of machine vision technology, specifically to a machine vision-based online defect detection method for printed materials. The method includes the following steps: employing a multispectral LED array light source to enhance the contrast of printed surface features by dynamically adjusting the spectral distribution; acquiring high-resolution images using a linear CCD camera; achieving rapid registration of the image with a standard template using an improved SIFT-Net algorithm to address deformation issues during high-speed motion; extracting luminance and chromaticity components from the Lab color space; removing noise using nonlocal mean filtering; predicting equipment wear trends using an LSTM model; and feeding the analysis results back to the production module to obtain an online defect detection solution. This invention solves the problems of poor contrast in traditional printed material detection light sources, insufficient feedback between detection results and the printing press, and the inability to deeply mine defect data to optimize processes and predict equipment wear.

This invention relates to the field of lens coupling, specifically to a coupling system between an adjustable focal length lens array and a Micro-LED array. The system includes a lens array layer and a driving module array layer disposed on one side of the lens array layer. A heat dissipation buffer composite layer is disposed on one side of the driving module array layer, and a Micro-LED array is disposed on one side of the heat dissipation buffer composite layer. Transparent adhesive is used to fill the spaces between the lens array layer, the driving module array layer, the heat dissipation buffer composite layer, and the Micro-LED array. The lens array layer includes multiple lens units. The bottom Micro-LED array substrate and the second heat dissipation buffer composite layer are positioned and connected by a thermally conductive insulating adhesive layer for full bonding. The clearance holes in the composite layer and the Micro-LED emitting units are coaxially positioned with a positioning accuracy of ±0.5μm to ensure optical axis coaxiality. The second heat dissipation buffer composite layer and the third driving module array layer are mechanically positioned using micro-positioning pins and bonded with conductive adhesive.

This invention discloses a rapid thermal treatment device, method, and application for silicon wafer surfaces based on LED light sources. The device includes an LED array light source module, a positioning mechanism, and a drive control unit. The LED array light source module emits light in the 350nm to 850nm wavelength range. The positioning mechanism maintains a working distance of 1-5cm between the emitting surface of the LED array light source module and the surface of the silicon wafer to be treated. The drive control unit is electrically connected to the LED array light source module, ensuring that the light power density irradiated onto the silicon wafer surface is greater than 5W / cm². This invention provides a rapid thermal treatment device, method, and application for silicon wafer surfaces based on LED light sources, reducing thermal damage to silicon wafers.

The application belongs to optical communication system, disclose a kind of interference management method and device in optical communication system, comprising the following steps: S1, the channel state information between each transmitter and receiver in optical communication system is collected in real time, data model is constructed based on channel state information;S2, based on data model, the beam parameter of LED array is dynamically adjusted by adaptive beam forming strategy;S3, interference signal parameter in channel state information is used, and the interference signal of each transmitter is structured alignment processing by interference vector orthogonalization algorithm;S4, set interference suppression evaluation criterion, whether current interference level meets the requirement based on evaluation criterion is judged, if it does not meet the requirement, start dynamic time slot scheduling strategy;S5, the data model of channel state information is updated according to preset period, repeat steps S2-S4, beam parameter, interference orthogonalization parameter and time slot allocation parameter are continuously adjusted by iterative optimization algorithm, realize dynamic adaptive interference management.

A micro LED element, a micro LED display panel, and a display device are provided. The micro LED display panel includes a micro LED chip including a driving layer and a micro LED array disposed on the driving layer, the driving layer being configured to receive signals for driving the micro LED array; a substrate layer disposed on a back surface of the driving layer, the substrate layer including a reception structure not covered by the micro LED chip; and a molded layer disposed on the micro LED chip and the substrate layer, and disposed into the reception structure to collaboratively enclose a periphery of the micro LED chip with the substrate layer, leaving an open region above the micro LED array.

This invention relates to the field of optical signal demodulation, specifically to a parallel optical signal modulation and demodulation method and system based on MicroLED array optical interconnects, comprising: a data acquisition module for acquiring raw data from the external environment or equipment and converting it into a form suitable for subsequent processing; a data processing module for receiving information from the data acquisition module and preprocessing it; and a data analysis module. The overall architecture of high-speed DSP+MicroLED channels breaks away from the traditional approach of "hundreds of channels, DSP-free, wide but slow." By introducing SerDes and DSP modulation and demodulation, the single-channel rate is increased by an order of magnitude, achieving a total bandwidth of ≥120Gbps with ≤32 channels. Simultaneously, single-channel 10–20Gbps OOK / PAM4 modulation is achieved: clearly defining high-order modulation of MicroLED under GHz-level bandwidth conditions, overcoming the carrier lifetime limitations of MicroLED, and ensuring low bit error rate through pre-emphasis, equalization, and FEC.

This invention discloses a data processing method and system for adaptive MicroLED array capabilities. The method is applied at the transmitting end and includes: acquiring target transmission data; allocating the target transmission data according to a predetermined transmission rate corresponding to each MicroLED channel to obtain channel transmission data corresponding to each MicroLED channel; encoding the corresponding channel transmission data based on a predetermined repetition factor corresponding to each MicroLED channel to obtain encoded transmission data; driving the MicroLEDs of each channel to emit light according to the encoded transmission data, so that the receiving end can convert the received optical signal into an electrical signal and extract electrical data; decoding the received electrical data based on the repetition factor to obtain the corresponding channel transmission data; and merging the data from each channel transmission data to obtain the target transmission data.

A synthetic aperture quantitative phase imaging method based on a hybrid of digital holography and Fourier ptychography. A programmable LED array which is annularly arranged is mounted on an off-axis digital holographic system for providing oblique illumination at varying angles; accurate noise-containing low-frequency information of an object is obtained by means of digital holography and is used as initial estimation; and then, high-frequency information of the object is reconstructed by means of a Fourier ptychographic algorithm based on intensity measurement, so as to realize synthetic aperture quantitative phase imaging. Using the accurate low frequency provided by holography as initial estimation ensures the accuracy of phase retrieval and wavefront aberration reconstruction, without strictly meeting matching illumination conditions, and reduces the number of intensity graphs required by Fourier ptychography; and a non-interferometric phase retrieval method based on Fourier ptychography improves the imaging resolution to an incoherent diffraction limit, and also effectively solves the problem of inherent speckle noise in digital holography.

This invention relates to the field of red light therapy chamber technology, specifically to a red light therapy chamber, a power control and adjustment method, and a system. The system includes a sensing module integrated within the red light therapy chamber, comprising a multispectral imaging component, a three-dimensional depth vision component, and an infrared thermal imaging component; an execution module comprising a high-density array of miniature LED light sources; and a control module connected to the sensing and execution modules, used to construct a three-dimensional digital model and a safe power mapping map based on multidimensional biological characteristics and geometric morphological data, and to dynamically adjust the output parameters of each LED unit in the execution module using a time-division multiplexing sampling mechanism and a hierarchical clustering driven architecture; through real-time perception of skin pigmentation and curvature characteristics via multispectral imaging and three-dimensional vision, dynamically modulating the power distribution of the LED array, and combining dose reciprocity law and pulse driving strategy, to achieve precise photobiological regulation of deep tissues while ensuring epidermal safety.

The application relates to the technical field of far-infrared health-care materials, and discloses a multi-modal excitation wearable far-infrared base material and a preparation method and application thereof. The wearable far-infrared functional base material comprises a functional coating, a light-heat excitation layer and an encapsulation layer which are arranged in layers; the functional coating is a multilayer structure containing functional mineral powder; the functional mineral powder can enhance far-infrared radiation in response to at least two kinds of energy input of light, heat, mechanical friction and humidity; the light-heat excitation layer is integrated with a graphene electrothermal film and an LED array; the emission wavelength of the LED array is configured to excite the functional mineral powder; and the encapsulation layer is a flexible microporous breathable film with a microstructure on the surface to enhance friction. The application greatly improves far-infrared radiation efficiency and energy utilization rate through an innovative light-heat-mechanical friction-humidity multi-modal synergistic excitation system.

This invention provides an infrared LED anaerobic pyrolysis separation device and method for retired photovoltaic modules, relating to the field of photovoltaic module recycling technology. The device includes a furnace body, a water absorption tower, an exhaust fan, a control box, an air pump, a conveyor support frame, a continuous conveying device, a vacuum pump, a ceramic catalytic filter unit, an activated carbon adsorption tower, an end-of-pipe treatment tower, an infrared LED array plate, a lifting adjustment rod, a nitrogen fan, and a VOCs absorption tower. The distance between the infrared LED array plate and the roller of the continuous conveying device is adjusted by the lifting adjustment rod. The roller is first heated to form a controlled heat storage layer, and then the roller conducts vertical contact heat transfer to the retired photovoltaic modules. The control box controls oxygen-free access, pyrolysis state identification, segmented waste gas purification, and safe discharge based on oxygen content, furnace pressure, furnace temperature, roller temperature, roller drive current, and exhaust gas detection values, achieving EVA film pyrolysis and deadhesion, as well as the separation of glass, silicon wafers, and metal conductors.

This invention relates to the field of visual inspection technology, and particularly to a method for manufacturing a machine vision polarization plane light source with an integrated liquid crystal tuner, comprising the following steps: S1, arranging white LED chips and infrared LED chips to form an LED array, and then integrating a light-diffusing device coaxial with the LED array to obtain a light source module; S2, first preparing a liquid crystal layer and controlling its thickness using a phase delay formula to obtain a liquid crystal tuner module; S3, setting a main control chip to obtain a control and communication module; S4, preparing an optical housing, and providing a modular slot with adjustable angles within the optical housing, on which the light source module and the liquid crystal tuner module are sequentially installed; S5, fixing the control and communication module within the optical housing, and sealing the gaps in the housing and the wire perforations; S6, performing performance debugging, and obtaining the finished product after passing the test. This invention has the advantages of modular precision fabrication, optical path optimization, real-time polarization calibration, and adaptive temperature control.

This invention relates to the field of display technology, specifically to a display control method and system for a computer LCD monitor. The method includes: acquiring a low dynamic range image, normalizing its brightness, and generating a mask indicating exposure / saturation areas based on a saturation threshold; inputting the image and mask into a high dynamic range reconstruction network to obtain a reconstructed high dynamic range image; combining its color and brightness channels into a tensor input local dimming network to output a backlight prediction image consistent with the display resolution; simulating a diffuser plate based on point spread function convolution and calculating the average brightness of sub-regions according to the LED array to generate a backlight control image; calculating and cropping the transmittance from the reconstructed image and the diffused backlight image to form a grayscale control image for the LCD panel; simultaneously sending the backlight control image and the grayscale control image to drive the backlight module and the LCD panel to achieve high dynamic range display. This invention solves problems in existing computer LCD monitors, such as the difficulty in fully utilizing the backlight local dimming potential of low dynamic range input images, the difficulty in simultaneously achieving bright area saturation and dark area detail, and the high backlight power consumption and susceptibility to halo artifacts while improving contrast.

An LED luminaire comprising an LED array of LED elements and an optical element. The optical element comprises one or more partially reflective or partially transmissive elements positioned normal to the plane of the LED array. In this way, the partially reflective elements create virtual sources or virtual LED elements by reflecting a portion of the light emitted by the LED elements, while allowing the original or "real" LED elements to remain visible by partially transmitting the light.

A head-wearable display device (100) including a micro-LED array (110) operable to emit visible light along a display path (112), a controller (234), a first optical element (120) to receive light and emit light with an increased light beam width, a second optical element (130) to collimate light, and a housing (210).