305 results about "Diode array" patented technology

The invention discloses an output conversion system and method for a UPS (Uninterrupted Power Supply), and the system comprises a main power input end which is connected with a bridge rectifier through a first electromagnetic relay; the energy storage module comprises a super capacitor group and a parallel lithium battery group, and is coupled with the bus capacitor through a bidirectional DC / DC converter; the input end of the multi-path regulation and control module is connected with the bus voltage sensor, and the output end is connected with the switching execution unit through a second electromagnetic relay group; the dynamic switching unit comprises an I-GBT matrix and a reverse blocking diode array which are respectively connected with the inverter and the bypass circuit in parallel; and the real-time monitoring module is provided with a current harmonic analysis unit and a load break variable detection unit, and the output end of the real-time monitoring module is connected with the ADC port of the central processor. According to the invention, systematic improvement is realized in three dimensions of electric energy quality guarantee, equipment reliability and dynamic response capability through an original multi-path regulation and control architecture and a deep cooperative intelligent control strategy.

The invention belongs to the technical field of optical devices, and provides a single photon avalanche diode array, a receiving sensor and a laser radar, at least two SPAD units are arranged in an array, a microlens converges incident light to the corresponding SPAD unit, a back metal grid connects the SPAD unit and a corresponding external electrode, a first dielectric layer is arranged between the microlens and the SPAD unit, and a second dielectric layer is arranged between the microlens and the SPAD unit. The second dielectric layer is arranged between the SPAD units and the front metal wiring layer, and the front metal wiring layer is electrically connected with the corresponding SPAD units through contact metal wires. The deep groove isolation columns are arranged between the adjacent SPAD units, and the metal filling structures are arranged between the deep groove isolation columns and the back metal grids, so that self-excitation photons generated when the SPAD units are excited by incident light can be isolated, the self-excitation photons are prevented from entering the adjacent SPAD units through grid gaps, the probability of photon crosstalk is reduced, and the optical crosstalk of the device is reduced.

The invention discloses a construction method of a gout compound decoction fingerprint as well as the fingerprint and application thereof, and belongs to the technical field of analysis and detection. The construction method of the fingerprint spectrum comprises the following steps: taking a test solution prepared from the gout compound decoction; the test solution is subjected to HPLC-SPD detection, so that the fingerprint spectrum of the gout compound decoction is obtained, and the HPLC detection conditions are that a C18 chromatographic column is used, a C18 chromatographic column is used, a C18 chromatographic column is used, a C18 chromatographic column is used, and a C18 chromatographic column is used for detecting the fingerprint spectrum of the gout compound decoction. An aqueous solution containing 0.1%-0.2% of phosphoric acid is used as a mobile phase A, and acetonitrile is used as a mobile phase B for gradient elution; the flow velocity is 0.8-1 mL / min, the column temperature is 25 DEG C, the sample injection volume is 5-10 [mu] L, and a diode array detector is 190-400 nm full-wave band scanning. The chemical components in the gout compound decoction are comprehensively and systematically analyzed, and a basis is provided for quality control and in-depth study of a pharmacodynamic material basis.

The invention discloses an optical interconnection system which comprises a light source, a transmission medium and a photoelectric detector. The light source adopts a micro resonant cavity light-emitting diode array, and the transmission medium adopts a multi-core plastic optical fiber. An optical signal output by the micro resonant cavity light emitting diode array is transmitted to the photoelectric detector through the multi-core plastic optical fiber and is converted into an electric signal through the photoelectric detector. The light source of the optical interconnection system provided by the embodiment of the invention adopts the micro resonant cavity light-emitting diode array, the transmission medium adopts the multi-core plastic optical fiber, and good balance among low power consumption, high stability and high parallelism can be achieved through component optimization.

The driving device includes a starting-position adjustment circuit and a pulse-width modulation (PWM) circuit. The starting-position adjustment circuit shifts a PWM counting value according to a starting-position setting to generate an adjusted counting value of a first channel. The starting-position setting is configured to indicate which subframe period in a same display frame period a starting value of the adjusted counting value is located in. The PWM circuit compares grayscale data of the first channel with the adjusted counting value and generates a PWM signal of the first channel according to a comparison result.

A multifunctional, adaptive facial mask delivers cosmetic massage and light therapy in a hands-free format. The mask integrates three elements: (i) internal motion-guiding contours that channel tactile stimulation along anatomically relevant lymphatic paths, (ii) zone-selective actuation using vibration nodes, inflatable micro-bladders, or oscillating pads, and (iii) a flexible Light-Emitting Diode (LED) grid delivering red, near-infrared, and optional blue wavelengths. The soft, medical-grade silicone shell conforms to diverse facial anatomies and maintains a continuous smooth surface that isolates the user from hard mechanics. A microcontroller sequences stimulation across zones (forehead, temple, cheek, nasolabial, jawline, and neck strap) to emulate facial-yoga strokes and lymphatic drainage. Preset modes such as Lift, Recovery, and Glow manage timing, direction, and intensity. Optional enhancements include gentle heat, removable cooling inserts, and low-frequency micro-stimulation. The mask provides an integrated combination of guided internal geometry, sequenced hands-free actuation, and cosmetic light therapy within a flexible, inclusive design.

The invention relates to an optical fiber power 24-path synchronous measurement method and system based on leakage light, and belongs to the technical field of optical fiber communication monitoring. The method comprises the steps that bending force is applied to a to-be-measured optical fiber through a micro-bend clamping coupler, and a leakage light signal is captured through a V-shaped angle positioning structure and a double-photosensitive sensor; and high-precision conversion and amplification of optical-electric signals are realized by combining 24 paths of parallel InGaAs-PIN photodiode arrays and a high-speed logarithmic amplifier. 24 paths of signals are synchronously acquired through an SPI protocol by adopting a master-slave single-chip microcomputer architecture, data processing is performed by combining a moving average filtering algorithm and a voltage-optical power conversion algorithm, and finally real-time monitoring of multi-channel optical power is realized through a data transmission interface. The device supports modular design, has the advantages of being non-invasive, low in additional loss, short in response time and the like, and is suitable for multi-channel online monitoring and maintenance of an optical fiber communication network.

The present invention relates to a micro light emitting diode chip and a display panel, the micro light emitting diode chip comprising: a micro light emitting diode array including a plurality of micro light emitting diodes configured to emit light; and a microlens disposed over the micro light emitting diodes, where adjacent microlenses are spaced apart from each other between the micro light emitting diodes. According to the micro light-emitting diode chip provided by the invention, the current expansion structure is arranged between the micro light-emitting diodes, so that light crosstalk of adjacent micro light-emitting diodes can be avoided; the micro lens can gather light emitted by the micro light-emitting diode, so that the luminance and the luminous efficiency of the micro light-emitting diode display chip are improved.

The embodiment of the invention provides a voltage-controlled oscillator, an oscillator circuit, a chip and electronic equipment, relates to the technical field of communication or radar detection, and can improve the linearity of the voltage-controlled oscillator. The voltage-controlled oscillator comprises a voltage-controlled oscillator resonant cavity, an even harmonic generator circuit and a self-mixing frequency tripler circuit. The voltage-controlled oscillator resonant cavity comprises a voltage transformation diode array and a first-stage mode switching capacitor. The even harmonic generator circuit comprises a group of cross coupling tubes, one end of each cross coupling tube is electrically connected to the two differential ends of the voltage-controlled oscillator, and the even harmonic generator circuit serves as an even harmonic generator and is electrically connected to the self-mixing frequency tripler circuit. The self-mixing frequency tripler circuit comprises a differential unit and a resonant cavity, and one end of the self-mixing frequency tripler circuit is electrically connected to the even harmonic generator circuit. The low-frequency voltage-controlled oscillator and the self-mixing frequency tripler circuit achieve current multiplexing, the even harmonic generator circuit serves as a negative resistor of the oscillator and also serves as an even harmonic generator of the self-mixing frequency tripler, and the linearity of the millimeter wave frequency source is improved.

A security floodlight has a light panel mounted in a housing for illuminating an area in proximity to the housing, an array of light emitting diodes (LEDs) mounted in the housing and arranged in a horizontal single row, and a controller configured activate the light panel based on an input signal and to sequentially activate each of the LEDs in the array of LEDs in a rotating sequence only when the light panel is not activated. The input signal may be received from a proximity sensor mounted in the housing that indicates the detection of movement in an area in close proximity to the security floodlight. The rotating sequence simulates operation of a low-light security camera by sequentially illuminating each LED in the array of LEDS in a rotating manner from a first end of the horizontal single row to a second end of the horizontal single row.

Provided is a vehicle lamp capable of illuminating a desired region with a desired brightness without a complicated optical system even when a light source includes one multi-divided LED array. The vehicle lamp includes a light source (multi-divided LED array) (3) configured such that a large number of light emitting elements (micro LEDs (31)) are arranged, the light source (3) selecting a light emitting element to emit light of a desired pattern, a main optical system (2) that projects the light emitted from the light source to form a main light distribution pattern, and an auxiliary optical system (4) that causes the light which has been emitted from the light source (3) and does not directly enter the main optical system (2) to enter the main optical system (2). The light incident from the auxiliary optical system (4) (downward reflecting mirror (41)) to the main optical system (2) forms an auxiliary light distribution pattern in an external region adjacent to the main light distribution pattern.

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

Implementations described herein are related to a diode driver that recirculates residual current from an operating current pulse in an inductor. Such recirculation produces a diagnostic current pulse to a diode array for measuring a voltage drop across a portion of the array. For example, after a controller charges an inductor of a diode driver to deliver operating current pulses to a portion of a diode array for illumination, the controller causes a residual current to remain and recirculate in the inductor. In some implementations, in response to the recirculating current reaching a monitoring threshold, the controller delivers a monitoring pulse to the portion of the diode array to measure a voltage drop across the portion of the diode array. In some implementations, the controller may infer defectivity in the portion of the array from such voltage drop measurements over time.

The invention discloses a compound monitoring method and system based on chromatographic column analysis and a medium, and relates to the technical field of chromatographic detection.The method comprises the steps that a complex matrix sample is taken, and first chromatographic column response distribution of the complex matrix sample is collected through a diode array detector; enhancement strategy optimization is carried out according to adjustable action parameters of the diode array detector, and the diode array detector collects second chromatographic column response distribution of the complex matrix sample under a first enhancement strategy; identifying a difference chromatographic column response distribution of the first chromatographic column response distribution and the second chromatographic column response distribution, and constructing a high-dimensional feature fusion fingerprint; and performing similarity measurement based on the high-dimensional feature fusion fingerprints and a pre-constructed compound feature fingerprint database to obtain a compound detection result. The technical problem of low detection accuracy caused by insufficient chromatographic response information of the compound under a complex matrix condition in the prior art is solved, and the technical effect of improving the detection accuracy of the compound is achieved.

An apparatus includes a light-emitting diode (LED) driver circuit, one or more LEDs of an LED array, and an electronic switching circuit. The LED driver circuit is configured to generate an electric current. The one or more LEDs are electrically connected to the LED driver circuit. The electronic switching circuit is electrically connected to the one or more LEDs and configured to be placed in one of multiple switching configurations. The electronic switching circuit is further configured to direct a portion of the electric current away from the one or more LEDs, such that a remaining portion of the electric current drives the one or more LEDs. The portion of the electric current corresponds to the one of the multiple switching configurations.

The present invention relates to a micro light emitting diode chip and a display panel, the micro light emitting diode chip comprising: a micro light emitting diode array, the micro light emitting diode array comprising a plurality of micro light emitting diodes, the micro light emitting diodes being configured to emit light, and the micro light emitting diodes comprising a light emitting mesa; the micro light-emitting diodes are arranged on the light-emitting table top, the micro lenses are arranged on the micro light-emitting diodes, the side faces of the adjacent micro lenses are separated from each other to form gaps, the bottoms of the gaps are connected, and the bottoms of the gaps are higher than the top of the light-emitting table top. According to the micro light-emitting diode chip provided by the invention, the current expansion structure is arranged between the micro light-emitting diodes, so that light crosstalk of adjacent micro light-emitting diodes can be avoided; the micro lens can gather light emitted by the micro light-emitting diode, so that the luminance and the luminous efficiency of the micro light-emitting diode display chip are improved.

An apparatus includes a light-emitting diode (LED) driver circuit, one or more LEDs of an LED array, and an electronic switching circuit. The LED driver circuit is configured to generate an electric current. The one or more LEDs are electrically connected to the LED driver circuit. The electronic switching circuit is electrically connected to the one or more LEDs and configured to be placed in one of multiple switching configurations. The electronic switching circuit is further configured to direct a portion of the electric current away from the one or more LEDs, such that a remaining portion of the electric current drives the one or more LEDs. The portion of the electric current corresponds to the one of the multiple switching configurations.

Example implementations described herein involve a media adaptor configured to provide electrical / optical and optical / electrical conversion for a multi-mode waveguide (MMWG) interconnect, the media adaptor involving one or more ball grid arrays; and a tail-cut fiber array block (tcFAB) connected to a first array of photodiodes and a second array of laser diodes from direct optical wire (DOW) bonding.

The invention relates to the technical field of emergency protection circuits, and provides an EEG pre-amplification circuit and brain-computer interface equipment. The buffers are connected in parallel, and the corresponding input ends of the buffers are connected with the electrode sensors; the buffer is a four-channel unity gain buffer; the input end of the electrostatic protection diode array is connected with the positive electrode and the negative electrode of a preset power supply, and the input end is further connected between the corresponding input ends of the buffers and the electrode sensor; the first filtering capacitor is connected with the first voltage stabilizing capacitor in parallel, the second filtering capacitor is connected with the second voltage stabilizing capacitor in parallel, the input ends of the first filtering capacitor and the first voltage stabilizing capacitor are connected with the positive electrode of a preset power supply, and the input ends of the first filtering capacitor and the first voltage stabilizing capacitor are connected with a preset grounding end; the input ends of the first filtering capacitor and the first voltage stabilizing capacitor are connected with the negative electrode of the preset power supply, and the input ends are connected with the preset grounding end, so that the power supply noise corresponding to the preset power supply is minimized.

A method for operating a portable photo booth, wherein the portable photo booth comprises a housing, a camera, and a light-emitting diode array which comprises a plurality of individually controllable light-emitting diodes, wherein the light-emitting diode array is controlled according to a control instruction in such a way that the light-emitting diode array at least temporarily assumes a lighting state in which the brightness of at least one first light-emitting diode of the light-emitting diodes differs from the brightness of at least one second light-emitting diode of the light-emitting diodes. The invention also relates to a portable photo booth.

The present invention discloses a polarization camera system that integrates a polarization sensor with a homogeneous dispersive retarder to detect and measure simultaneously the four components of the Stokes vector of polarized light. Unlike existing methods that require complex setups or expensive components, this approach uses a single sensor setup, combining the division of focal plane method with wavelength sensitivity inherent in many camera sensors. The system (1) comprises: a polarization sensor (2) having a polarizer array (2a) and a color channel filter (2b); a photodiode array (2c) configured to measure at least four intensities; a light entrance (4); a microprocessor (5); a first homogeneous dispersive retarder (3). The first homogeneous dispersive retarder is configured to introduce wavelength-dependent retardation δ(λ) to the incident polarized light, so that [δ(λi) ≠ δ(λj)]; and, the microprocessor is configured to calculate a complete Stokes vector of incident polarized light from the measured intensities.

A photodetector (90) having an exposure surface (91) has a first photodiode array (1) having a first light entry surface (11) and a second photodiode array (2) having a second light entry surface (21). The first photodiode array (1) has an avalanche photodiode (10). The second photodiode array (2) has a non-amplifying photodiode (10). The first light entry surface (11) and the second light entry surface (21) form sub-surfaces of the exposure surface (91).

The utility model relates to the technical field of light emitting diodes, and discloses a packaging support for a light emitting diode array. Comprising a shell and further comprises a light-emitting diode body arranged in the shell, a lead is arranged at the bottom of the light-emitting diode body, a mounting frame is fixedly connected to the inner wall of the shell, a connecting frame is fixedly connected to the inner wall of the mounting frame, and a guide wheel for protecting the lead is arranged on the inner wall of the connecting frame. According to the utility model, the mounting sleeve is clamped into the mounting seat, so that the effect of arranging and packaging the light-emitting diode bodies is achieved, the light-emitting diode bodies can be conveniently disassembled and overhauled subsequently, the lead is protected through the guide wheel and the protective pad, the lead is prevented from being abraded, heat in the shell can be absorbed through the heat-conducting fins, and the heat-conducting effect is improved. And under the action of the spring and the damper, the protection plate is driven to reset quickly, so that the impact force borne by the shell is reduced.

A CMOS image sensor includes a unit pixel array including a photodiode array, a color filter array, a micro-lens array, and a grid isolation structure laterally separating adjacent color filters. The grid isolation structure includes a first low-n grid, a second low-n grid underlying the first low-n grid, and a metal grid within the second low-n grid, the first low-n grid being narrower than the second low-n grid. The color filter array includes color filter matrixes, all color filter matrixes have the same arrangement pattern. Sizes of color filters in each color filter matrix vary depending on locations of the color filters in the color filter matrix. In an edge portion, a distance between a center of a color filter matrix and a center of a corresponding unit pixel matrix in plan view varies depending on a location of the unit pixel matrix in the CMOS image sensor.

An array device (100) of light emitting and / or light receiving diodes (102) is disclosed, comprising: - a stack of a first semiconductor layer (106) and a second semiconductor layer (108) according to different types of doping; - a plurality of first channels (112) passing through the stack and surrounding a region of the stack in which a plurality of diodes are formed; - a plurality of dielectric portions (114) arranged in the first channels and covering flanking faces of said region over an entire thickness of the second layer and a first part of a thickness of the first layer; - a first conductive portion (116) arranged in the first channels, covering flanking faces of said region over a second part of the thickness of the first layer and forming a first electrode of the diodes of said region; - at least one second channel (118) partially passing through the first layer and separating a portion of the first layer from the diodes of said region.

The embodiment of the application provides a voltage-controlled oscillator, an oscillator circuit, a chip and an electronic device, relates to the technical field of communication or radar detection, and can improve the linearity of the voltage-controlled oscillator. The voltage-controlled oscillator comprises a voltage-controlled oscillator resonant cavity, an even harmonic generator circuit and a self-mixing tripler circuit. The voltage-controlled oscillator resonant cavity comprises a voltage change diode array and a first mode switching capacitor. The even harmonic generator circuit comprises a group of cross-coupled tubes, one end of the group of cross-coupled tubes is electrically connected to differential two ends of the voltage-controlled oscillator, and the group of cross-coupled tubes simultaneously serves as an even harmonic generator and is electrically connected to the self-mixing tripler circuit. The self-mixing tripler circuit comprises a differential unit and a resonant cavity, and one end of the self-mixing tripler circuit is electrically connected to the even harmonic generator circuit. The low-frequency voltage-controlled oscillator and the self-mixing tripler circuit realize current multiplexing, the even harmonic generator circuit serves as an even harmonic generator of the self-mixing tripler in addition to serving as negative resistance of the oscillator, and the linearity of the millimeter wave frequency source is improved.

A communication device (22), consisting of at least one semiconducting die (38) and an electronic integrated circuit (EIC) (14A) formed on a first side (34) of the at least one die. The device also has at least one first array of micro-light emitting diodes (micro-LEDs) (50), mounted on a second side (54) of the at least one die that is opposite the first side. The micro-LEDs are electrically connected to the EIC and are configured to transmit outbound optical signals to respective first optical fibers. The device also has at least one second array of photo-diodes (60), mounted on the second side of the at least one die. The photo-diodes are electrically connected to the EIC and are configured to receive inbound optical signals from respective second optical fibers.

The present application relates to the technical field of furniture detection, and relates to a device for detecting the smoothness of the inner wall of a hole in solid wood furniture, comprising a support and a detection unit, the support being used for arranging and adjusting the direction and angle of the detection unit, the detection unit comprising a fiber bundle probe and a main component, the fiber bundle probe being used for emitting light and receiving reflected light of the inner wall of the hole in the solid wood furniture to detect the smoothness, the fiber bundle probe comprising one emitting fiber and a plurality of receiving fibers, the emitting fiber being located at the center and the plurality of receiving fibers being uniformly distributed around the emitting fiber; the main component being connected with the fiber bundle probe and being used for providing a light source and processing reflected light signals, the main component comprising a laser diode, a programmable laser drive circuit, a MEMS micromirror array, a photodiode array and a microprocessor, the present application realizes non-contact detection through emitting and receiving light, completely avoids physical damage to the hole wall of the wood, and is particularly suitable for quality control of high-grade solid wood furniture.

The invention provides a system and method for detecting the content of a corrosion inhibition additive in cooling liquid, specifically, the system comprises a liquid chromatograph, a diode array detector DAD and an electric fog detector CAD which are sequentially connected in series, the liquid chromatograph comprises a mobile phase pump, an automatic sampler and a column oven, and a chromatographic column is arranged in the column oven; wherein the mobile phase pump is used for mixing different mobile phases according to a preset proportion and then conveying the mixed mobile phases to the automatic sample injector; the automatic sample injector is used for injecting the mobile phase from the mobile phase pump into the to-be-detected cooling liquid and flushing the to-be-detected cooling liquid injected with the mobile phase to the chromatographic column; the column oven is used for controlling the column temperature of the chromatographic column; the chromatographic column is used for performing chromatographic separation on the corrosion inhibition additive in the to-be-detected cooling liquid; the DAD is used for detecting the corrosion inhibition additive containing the benzene ring in the cooling liquid to be detected; the CAD is used for detecting the polybasic aliphatic carboxylic acid type corrosion inhibition additive in the cooling liquid to be detected.

The present invention relates to a micro light-emitting diode chip and a display panel, the micro light-emitting diode chip comprising: a micro light-emitting diode array comprising a plurality of micro light-emitting diodes configured to emit light, the micro light-emitting diodes comprising: a light-emitting mesa; an ohmic contact layer disposed under the light emitting mesa; and a top conductive layer disposed on the light-emitting mesa, the top conductive layer comprising a top conductive layer first portion and a top conductive layer second portion, the top conductive layer first portion being located on a top surface of the light-emitting mesa, the top conductive layer second portion being located on a side surface of the light-emitting mesa, the top conductive layer first portion being located on a top surface of the light-emitting mesa, and the top conductive layer second portion being located on a side surface of the light-emitting mesa. And the thickness of the first part of the top conductive layer is greater than that of the second part of the top conductive layer. According to the miniature light-emitting diode chip provided by the invention, the contact resistance between the top conductive layer and the light-emitting mesa can be reduced, and the overall resistance load of the miniature light-emitting diode chip can be reduced.