2556 results about "Ultraviolet" patented technology

The invention relates to a layered drug-loading microneedle patch as well as a preparation method and application thereof. The preparation method of the layered drug-loading microneedle patch comprises the following steps: S1, dissolving a drug and a soluble high-molecular polymer in a solvent according to a mass ratio of (2: 1)-(1: 12) to form a needle tip solution, then filling a needle tip cavity of a microneedle mold with the needle tip solution, drying, and removing redundant drug residues on the surface to form a drug-loading needle tip layer; and S2, filling a mold containing the drug-loading needle tip layer with a photocurable polymer, performing ultraviolet curing for 10-30 seconds under the wavelength of 365-405 nm, and then performing demolding to form a substrate layer, thereby obtaining the layered drug-loading microneedle patch. According to the method, one-time filling of the needle tip part is successfully achieved by combining needle tip auxiliary material proportion optimization, meanwhile, the curing process is rapid, the medicine utilization rate and the process stability are remarkably improved, the medicine stability is good, and the method is suitable for industrial production.

The invention belongs to the technical field of material and coating corrosion tests, and relates to a whole sea area atmospheric environment comprehensive simulation test system, which adopts an integrated structural design, and performs integrated coupling of various environmental test simulation capabilities on the basis of a single-function test box. The device has the test capabilities of metal material corrosion acceleration test, organic composite material and coating aging evaluation and the like, can simulate the global marine atmospheric environment and coupling of multiple factors such as air temperature, humidity, salt mist and ultraviolet irradiation, can perform comprehensive test evaluation on the whole-sea-area marine atmospheric environment of typical materials, avoids the problem of inconvenient operation of corrosion tests, and has a wide application prospect. The device can be used for corrosion and ultraviolet aging tests of conventional marine atmospheric environment corrosion media, polar regions, tropical regions and other extreme marine atmospheric environments, and material corrosion tests for simulating marine splash zones, tidal range zones and the like. The device is simple in structure and convenient to operate, and coupling of multiple factors of high and low temperature, humidity, salt mist, ultraviolet illumination and periodic infiltration can be achieved.

The invention discloses a multi-mode intelligent inspection system and device for an oil field gathering and transportation station yard, and belongs to the technical field of oil field gathering and transportation station yard inspection. The multi-mode intelligent inspection system comprises a data acquisition module, an abnormity judgment module, a station yard model simulation analysis module and a decision analysis and execution module; comprising a vibration camera sensor, a temperature camera sensor, a pressure camera sensor, a flow camera sensor, a liquid level camera sensor, a gas camera sensor, an ultraviolet flame camera sensor, an infrared thermal imaging camera sensor, a visible light camera sensor and a depth camera sensor and is used for collecting process equipment, environment states and personnel operation behavior data of a current oil field gathering and transportation station and recording the data collected by the sensors in a near-field edge server and a cloud server; the time difference of data acquisition is eliminated through a space-time alignment algorithm, and a time sequence health vector in a unified format is generated. According to the multi-mode intelligent inspection system and device for the oil field gathering and transportation station yard, multi-mode inspection can be carried out on the oil field gathering and transportation station yard based on the type of the oil field gathering and transportation station yard, and typical anomalies are recognized and processed.

The invention relates to the technical field of ballast water treatment, in particular to a ballast water treatment-ultraviolet cooperative control method and system based on multi-parameter feedback, and the method comprises the steps: collecting turbidity, pressure gradient, ultraviolet light transmittance and biological activity data in real time through multiple types of sensors arranged at an inlet of a filter unit, the surface of a filter screen and an ultraviolet reactor; a composite control model fusing hydromechanics and optical characteristics is constructed, and closed-loop cooperation of aperture dynamic adjustment, ultraviolet dose compensation and directional backwashing is realized. The method is characterized in that an electrostriction filter screen is adopted to realize local aperture gradient control so as to balance flux and precision; an ultraviolet dose dynamic compensation algorithm is designed, and the irradiation efficiency is enhanced and improved in combination with a vortex flow field; and establishing a linkage optimization mechanism of the backwashing period and the service life of the equipment. A real ship verifies that the method can effectively reduce comprehensive energy consumption, can adapt to water quality fluctuation of different sea areas in the world, and meets the long-acting compliance requirement of the IMOD-2 standard.

A vehicular camera includes a camera housing having a front housing portion and a rear housing portion. The front housing portion includes a plurality of optical elements, a CMOS imager, and an imager printed circuit board. The CMOS imager is at a first side of the imager printed circuit board. The plurality of optical elements is held in position relative to the CMOS imager by an adhesive, whereby the imaging array at the outer side of the CMOS imager is devoid of the adhesive. The adhesive is formed by curing an adhesive material that is curable via exposure of the adhesive material to ultraviolet (UV) light. The adhesive maintains the position of the plurality of optical elements with respect to the CMOS imager during use of the vehicular camera assembly on a vehicle equipped with the vehicular camera assembly. The back housing portion is joined at the front housing portion.

The invention relates to the technical field of solar cell module packaging, in particular to a packaging structure for a perovskite-back contact crystalline silicon laminated solar cell and a preparation method of the packaging structure. The packaging structure comprises a front light conversion glass layer, a perovskite top cell layer, an infrared light-transmitting adhesive film layer, a back contact crystal silicon bottom cell layer, an adhesive film layer and a packaging bottom plate which are arranged in sequence, and butyl rubber surrounding the perovskite top cell layer, the infrared light-transmitting adhesive film layer, the back contact crystal silicon bottom cell layer and the adhesive film layer is arranged between the front light conversion glass layer and the packaging bottom plate, and the near infrared transmittance of 780 nm to 1100 nm in the infrared transparent adhesive film layer is 93% to 100%. According to the packaging structure based on the front light conversion glass layer and the infrared light-transmitting adhesive film layer, regulation and control of short-wave ultraviolet and near-infrared spectrums are considered, and the photoelectric property and reliability of the perovskite-crystalline silicon four-terminal laminated device are remarkably improved.

The invention discloses a transformer oil leakage detection method and device based on polarization-ultraviolet fusion imaging, and the device comprises a housing, a support, a camera, an environment induction device, an overall controller, a power supply, a polaroid rotating wheel assembly, a lens seat assembly, and an image processor. And the motor driver, the illumination intensity sensor, the ultraviolet irradiance sensor, the image processor and the power supply are electrically connected with the integral controller respectively. According to the invention, a multi-angle polarization image and a non-polarization image in the same field of view can be acquired, and then polarization characteristics contained in an oil stain fluorescence signal are extracted and effectively distinguished from non-polarization characteristics of background light; in the daytime mode, the transformer oil leakage detection device can identify a target area with relatively high polarization intensity, and through image fusion enhancement processing, non-target background signals are significantly suppressed, and the fluorescence significance of an oil leakage characteristic area is improved.

The invention provides a vertical structure ultraviolet photoelectric detector and a preparation method thereof. The ultraviolet photoelectric detector is of a vertical structure, the design facilitates light absorption of the ultraviolet photoelectric detector, the light utilization rate of the ultraviolet photoelectric detector is improved, and compared with a horizontal structure, the transmission distance is shortened, and the cost is low; the ultraviolet photoelectric detector provided by the invention has a relatively high switching ratio of light and dark current and relatively small dark current, and also has a very high response speed under the condition of keeping the switching ratio of light and dark current and the dark current; a PN junction is formed between the nickel oxide hole transport layer and the beta-phase gallium oxide single crystal, so that the ultraviolet photoelectric detector has self-driving performance; in the manufacturing process, the substrate is used as a supporting frame, and the extraction electrode is packaged in one step through the conductive adhesive tape, so that 3-5 photoetching steps of a traditional horizontal structure are omitted, the process is simplified, and the process manufacturing is simpler.

The invention relates to the field of color master batches, and discloses a color master batch with good colorability and high weather resistance as well as a preparation method and application of the color master batch, and the color master batch comprises the following components: polyolefin-based resin, core-shell structure carbon black particles, a hyperbranched dispersant, a grafted ultraviolet absorbent, a CeO2 / TiO2 composite photocatalytic additive and a dynamic cross-linking agent; the preparation method comprises the following steps: S1, carrying out functional modification treatment on the core-shell structure carbon black particles; s2, synthesizing a hyperbranched dispersant; s3, preparing a grafting type ultraviolet absorbent; s4, preparation of a CeO2 / TiO2 composite photocatalytic auxiliary agent; s5, premixing all the components; s6, performing double-screw dynamic cross-linking extrusion molding; and S7, cooling and granulating. The thermal stability of the color master batch is effectively improved by introducing the dynamic cross-linking agent and the ultraviolet absorbent, and the dynamic cross-linking agent forms a three-dimensional network structure by cross-linking resin molecules, so that the color master batch has better stability under a high-temperature condition.

The invention relates to a composite cable, and relates to the technical field of cables, the composite cable comprises a conductor layer, a composite insulating layer, a waterproof layer, a weather-proof sheath layer and an armor layer from inside to outside in sequence, the conductor layer comprises at least six tinned copper conductors, the tinned copper conductors are symmetrically arranged in a regular hexagon shape, dielectric elastomers are filled among the conductors, and the dielectric elastomers are arranged between the tinned copper conductors. The composite insulating layer comprises an inner shielding layer, a main insulating layer and an outer shielding layer from inside to outside, the waterproof layer is a fluororubber extruded layer, the weather-proof sheath layer comprises a bonding transition layer and a weather-proof functional layer, and the armor layer is of a stainless steel band spiral wrapping structure. The composite cable can meet the requirement for high performance in a harsh environment and can show excellent performance under the extreme conditions of low voltage, large day and night temperature difference, strong ultraviolet rays, sand and dust abrasion, acid rain corrosion and the like.

The invention relates to the technical field of transmission, transformation and distribution equipment inspection, and discloses a remote control transmission, transformation and distribution unmanned aerial vehicle inspection system, which comprises a task planning module, a data acquisition module, an obstacle avoidance decision module, a data processing module and a fault prediction module, by integrating the task planning module, the data acquisition module, the obstacle avoidance decision-making module, the data processing module and the fault prediction module, efficient and accurate routing inspection of the transmission, transformation and distribution equipment is realized, the task planning module adopts a weighted task planning algorithm, and according to equipment distribution and routing inspection requirements, the routing inspection efficiency is improved. According to the method, the optimal flight path of the unmanned aerial vehicle is automatically planned, the inspection area and precision are set in combination with the equipment type, the inspection efficiency and accuracy are improved, the data acquisition module carries various sensors, visible light images, infrared thermal imaging, ultraviolet imaging, laser radar, sound and electromagnetic multi-mode data of equipment can be comprehensively acquired, and the inspection efficiency and accuracy are improved. And an information basis is provided for subsequent data processing and analysis.

The invention relates to a high-efficiency near-ultraviolet heat exciton compound with circular polarization property and application of the high-efficiency near-ultraviolet heat exciton compound in preparation of a circular polarization organic electroluminescent device, and belongs to the technical field of organic photoelectric materials. The organic electroluminescent material is a high-efficiency near-ultraviolet heat exciton compound with circular polarization property, nine pairs of near-ultraviolet enantiomers are successfully designed and synthesized by combining chiral group binaphthol with fluorene with high luminous efficiency, and the nine pairs of near-ultraviolet enantiomers all show obvious circular polarization luminous property and high fluorescence quantum yield. The electroluminescent devices prepared based on the nine pairs of near ultraviolet enantiomers all show near ultraviolet emission, and the external quantum efficiency is 3.9%, 3.1%, 4.5%, 7.5%, 6.3%, 5.0%, 10.3%, 9.2% and 11.6% respectively. A new visual angle is provided for developing a near ultraviolet heat exciton material with circular polarization luminescence and high efficiency at the same time, and 3D and wide color gamut display can be directly achieved in the future.

The invention relates to the technical field of electronics, in particular to a dynamic threat spectrum library construction method based on a gallium oxide solar blind antenna detection module. According to the method, through cooperative acquisition and analysis of a gallium oxide solar blind antenna detection module and a radio frequency signal, a low-altitude target is accurately positioned by utilizing the low-noise characteristic of solar blind ultraviolet detection, the signal response speed is effectively improved, the target positioning capability and speed in a complex environment are improved, and the target positioning accuracy is improved through protocol feature extraction and dynamic fingerprint construction. Identity recognition and behavior tracking of a threat source are achieved, a closed-loop optimization mechanism is formed, the system has the continuous self-adaptive active detection capability, and the protection level of an existing low-altitude defense system from passive defense to active early warning is effectively upgraded.

The invention discloses a multi-mode reconfigurable diamond solar-blind ultraviolet photoelectric transistor and a preparation method thereof, and aims to solve the problem of separation of sensing, storage and calculation frameworks of an existing artificial vision system. According to the diamond solar blind ultraviolet photoelectric transistor, a terminal is arranged on the surface of a diamond substrate, a first metal film layer is deposited on the upper surface of the diamond substrate to serve as a first contact electrode, the first contact electrode is Schottky contact, and a second contact electrode is a metal probe. The second contact electrode is in needle point contact with the upper surface of the diamond substrate, a second metal film layer is deposited on the lower surface of the diamond substrate to serve as a third contact electrode, and the third contact electrode is Schottky contact. According to the reconfigurable diamond solar blind ultraviolet photoelectric transistor, different functions of an avalanche detector, an optical memory, visual synapse and the like are integrated in one device, and large gain rising of the diamond detector and multi-mode intelligent sensing of a single device are achieved.

The invention discloses a colored photovoltaic module which comprises a transparent colored glaze panel, a transparent bonding layer A, a battery layer, a bonding layer B and a back plate which are sequentially packaged in a stacked mode. The transparent colored glaze panel comprises a glass substrate, a transparent colored coating covering the outer side surface of the glass substrate, and a transparent glaze layer covering the outer side surface of the transparent colored coating; the transparent glaze layer is combined with the transparent colored coating through a covalent bond; the main component of the transparent glaze layer is silicon dioxide. The transparent colored coating of the colored photovoltaic module is positioned on the outer surface of the glass panel of the photovoltaic module, so that the defect of glass texture of a traditional photovoltaic module serving as a building material product is overcome; a transparent glaze layer with silicon dioxide as a main component is further arranged outside the transparent colored coating to serve as a protective layer, the adhesion fastness is high, the excellent performance of high hardness, high transparency, super weather resistance, acid and alkali resistance, scratch resistance and stain resistance is achieved, and the colored coating is effectively protected against color fading, falling off and external erosion such as acid rain, ultraviolet and sand wind.

The invention discloses an ultra-wide-spectrum endoscopic imaging device capable of being used for short-wave infrared fluorescence imaging, which is used for in-vivo minimally invasive imaging and comprises an illumination module, a wide-spectrum image transmission module, an imaging module and an image processing module. The illumination module consists of a light source and a light guide optical fiber, and is used for generating illumination light from ultraviolet to short wave infrared band and transmitting the illumination light to the wide-spectrum image transmission module; the wide-spectrum image transmission module consists of a few-interface optical imaging channel and a light guide illumination channel, and is used for illuminating an imaging target, exciting target fluorescence and collecting image signals from ultraviolet to short-wave infrared bands; the imaging module is composed of an optical filter and an imaging camera, and the imaging camera can be a wide spectral response image sensor or can be formed by combining cameras working in different wavebands and is used for converting optical images in different wavebands into image data; and the image processing module is used for registering and fusing image data of different wavebands in real time and displaying the image data.

The invention relates to the technical field of protective glue, in particular to extreme high and low temperature impact resistant UV (ultraviolet) photocuring electronic protective glue which is prepared from the following raw materials in parts by weight: 30-50 parts of synergistically modified epoxy-urethane acrylate oligomer, 20-35 parts of composite active monomer, 1.5-5 parts of composite photoinitiator and 10-20 parts of core-shell structure inorganic composite filler, 0.6 to 2.2 parts of a silane coupling agent, 0.12 to 1.1 parts of an antioxidant and 0.11 to 1 part of a leveling agent; the preparation method of the synergistically modified epoxy-urethane acrylate oligomer comprises the following steps: reacting resin acid modified epoxy resin with phosphoric acid di (hydroxyethyl acrylate) ester at 80-90 DEG C, and introducing a phosphate group to obtain a phosphate modified epoxy acrylate intermediate; the protection glue unifies rigidity, flexibility and flame retardance on the molecular level through the cooperation of the hybrid oligomer and the core-shell filler, realizes high heat conductivity, strong adhesion and extremely low internal stress, and has extreme temperature impact resistance, long-term damp-heat aging resistance and high-reliability protection performance.

The invention relates to an improved photoelectric coupler packaging electroplating technology which comprises the following steps that S10, self-repairing microcapsules are dispersed into electroplating liquid, the microcapsules comprise wall materials and core materials, and the core materials comprise vinyl siloxane and chloroplatinic acid catalysts; s20, sequentially forming a nano gradient composite coating structure on the surface of the substrate, wherein the composite coating structure comprises a substrate layer, a transition layer, a main functional layer and a packaging layer; and S30, carrying out micro-area deposition by adopting a light-induced selective electroplating process, wherein the micro-area deposition comprises laser micro-area activation, pulse electroplating deposition and in-situ ultraviolet curing. According to the electroplating process, through the nanometer gradient composite coating structure, the interface stress concentration is reduced through layer-by-layer transition of the material and the thickness, the thermal cycle resistance of the coating is improved, and meanwhile the balance among conductivity, mechanical strength and thermal stability is achieved.

The invention discloses a chip structure capable of simultaneously improving deep ultraviolet LED crystal quality and injection efficiency and a preparation method. The chip structure comprises a substrate, a buffer layer is arranged on the substrate, a multi-quantum well layer is arranged above the buffer layer, an n-type doping layer is arranged on the side face of the multi-quantum well layer, and an n-type contact electrode is arranged above the n-type doping layer. A plurality of p-type doped layer plugs are inserted in the multi-quantum well layer, a p-type doped layer is arranged above the p-type doped layer plugs and the multi-quantum well layer, and a p-type contact electrode is arranged on the p-type doped layer; a passivation layer is arranged on the upper surface of the whole structure, and the thickened metal electrode penetrates through the passivation layer and is located on the n-type contact electrode and the p-type contact electrode. According to the invention, insufficient hole injection in the multi-quantum well layer and the crystal quality of the multi-quantum well layer can be improved at the same time.

The invention discloses a deep ultraviolet LED epitaxial structure, a deep ultraviolet LED device comprising the same and a preparation method, and the epitaxial structure sequentially comprises a sapphire substrate, an AlN nanowire array layer, an AlN intrinsic layer and an AlGaN light-emitting structure layer from bottom to top. The AlGaN light-emitting structure layer further comprises an n-type AlGaN electron injection layer, a quantum well active layer, a p-type AlGaN electron blocking layer and other device structures. According to the invention, the vertically arranged AlN nanowire array is introduced to replace a traditional AlN buffer layer, so that lattice mismatching stress caused by a substrate is significantly released, and the dislocation density of an epitaxial layer is effectively reduced; meanwhile, the introduction of the AlN intrinsic layer further flattens the epitaxial interface and optimizes the lattice quality, thereby providing a high-quality template for the growth of a high-performance AlGaN material. The epitaxial structure is suitable for an LED device in a deep ultraviolet band, and the crystal quality, the electrical property and the luminous efficiency of the device can be improved.

The application discloses a cross-linked ETFE composite film with gradient ultraviolet shielding function and a preparation method and application thereof, and belongs to the technical field of ETFE film preparation. The cross-linked ETFE composite film is composed of three layers of a surface layer, a middle layer and a bottom layer. The surface layer material comprises ETFE resin and fluorinated carbon quantum dots; the middle layer material comprises ETFE resin, allyl-containing comonomer A and phenyl-containing comonomer B; and the bottom layer material comprises ETFE resin and CeO2 nanowires. The fluorinated carbon quantum dots have a particle size of 3-5 nm and contain a -C4F9 structure. The comonomer A is an allyl-containing fluorine olefin monomer, and the comonomer B is a phenyl-containing organic fluorinated compound. Through the synergistic effect of the surface layer self-migration fluorinated carbon quantum dots, the middle layer copolymerization modification and the bottom layer CeO2 nanowires, high light transmittance, full-waveband ultraviolet shielding and long-term weather resistance are achieved.

The invention relates to the technical field of partial discharge detection, in particular to an ultraviolet partial discharge detection method and device, a storage medium and an ultraviolet sensor, the ultraviolet partial discharge detection method is applied to a gallium nitride ultraviolet sensor, and the ultraviolet partial discharge detection method comprises the following steps: acquiring an initial ultraviolet detection signal and an environmental parameter detection signal, preprocessing the initial ultraviolet detection signal and the environmental parameter detection signal to obtain an actual ultraviolet detection signal and a drift compensation value; when it is determined that the gallium nitride ultraviolet sensor is in a real partial discharge state according to the actual ultraviolet detection signal, compensating the actual ultraviolet detection signal according to the drift compensation value; and acquiring the real ultraviolet partial discharge intensity corresponding to the initial ultraviolet detection signal according to the compensated actual ultraviolet detection signal. Therefore, the detection precision and stability of the ultraviolet signal can be improved, excessive deviation of a detection result caused by interference of environmental factors is avoided, and the occurrence frequency of false alarms is remarkably reduced.

The invention discloses a cooperative control method for filtering and ultraviolet sterilization links in a pure physical ballast water management system. According to the method, based on real-time monitoring of water flow characteristics, filter screen states, water quality parameters and ultraviolet sterilization effects, efficient operation of a ballast water treatment system is achieved through intelligent feedback regulation and control, machine learning optimization, self-adaptive flow velocity adjustment and dynamic energy consumption optimization. According to the method, the ballast water treatment efficiency can be improved by 20%, the energy consumption can be reduced by 15%, meanwhile, the stability and adaptability of the system are enhanced, and the method is suitable for ballast water management of various ships and meets the international environmental protection standard.

The invention relates to the technical field of anti-drag films, and particularly discloses an ultraviolet aging resistant anti-drag film and a preparation process thereof.A hindered amine light stabilizer HALs and a silane coupling agent KH-560 are introduced into substrate TPU resin, the strength, heat resistance and aging resistance of the material are enhanced, then an adhesive layer is formed on a substrate film, and the anti-drag film is prepared. A disulfide bond in the adhesive layer has a reversible fracture-self-repairing function, the fatigue resistance of the material is enhanced, the long-term service life of the material is prolonged, the surface layer is acrylic resin formed through copolymerization, the structure comprises a flexible alkyl chain and a siloxane chain segment, a microstructure is formed through hot rolling, the aerodynamic performance is optimized, and the purpose of reducing frictional resistance is achieved.

The invention relates to a joint detection method and device for insulator defects, electronic equipment and a medium, and the method comprises the steps: obtaining an ultraviolet image of a to-be-detected insulator, carrying out the preprocessing of the ultraviolet image, and obtaining an ultraviolet preprocessing image containing a discharge light spot region; obtaining a visible light image of a to-be-detected insulator, and performing preprocessing and feature value extraction on the visible light image to obtain a visible light preprocessed image and a visible light image feature value; based on the ultraviolet preprocessing image, constructing an ultraviolet discharge spectrum of the insulator, and determining a defect discharge grade according to the ultraviolet discharge spectrum; based on the ultraviolet discharge spectrum and the visible light image feature value, the ultraviolet preprocessed image and the visible light preprocessed image are fused, and a fused image and position information of the insulator defect are obtained; and performing defect identification on the fused image by adopting a pre-trained insulator defect detection deep learning model to obtain an insulator defect grade. According to the invention, the detection accuracy of the degraded insulator is improved.

The invention discloses a high-color-purity near ultraviolet heat exciton compound with circular polarization property and application thereof in preparation of a circular polarization organic electroluminescent device, and belongs to the technical field of organic photoelectric materials. The electroluminescent material disclosed by the invention is a high-color-purity near ultraviolet heat exciton compound with circular polarization property, and two pairs of near ultraviolet enantiomers are successfully designed and synthesized by combining a chiral group binaphthol, a weak donor dibenzothiophene, dibenzofuran and an acceptor cyanophenyl; the compounds show obvious circular polarization luminescence property and high fluorescence quantum yield. The electroluminescent devices prepared based on the enantiomers all show near ultraviolet emission, CIE coordinates are respectively (0.168, 0.040) and (0.166, 0.040), and the external quantum efficiencies are respectively 4.3% and 3.4%. According to the near ultraviolet heat exciton material, a new visual angle is provided for developing the near ultraviolet heat exciton material with circular polarization luminescence and high color purity at the same time, and 3D and wide color gamut display can be directly achieved in the future.

The invention discloses an isomorphic four-core hollow-core anti-resonance optical fiber for an ultraviolet band photoetching process, which belongs to the technical field of optical fiber communication, and comprises an outer cladding and four isomorphic hollow-core light guide units which are arranged in the outer cladding and are distributed at equal intervals in a rectangular array manner, anti-resonance structures are symmetrically arranged in each isomorphic hollow-core light guide unit in the vertical direction and the horizontal direction, and the anti-resonance structures enclose to form an air fiber core; the anti-resonance structure is formed by nesting a plurality of layers of circular and elliptical anti-resonance tubes. And the four isomorphic hollow-core light guide units respectively work in the wavelength ranges of 280 to 380 nm, 220 to 280 nm, 160 to 220 nm and 100 to 160 nm. The isomorphic four-core hollow-core anti-resonance optical fiber structure provided by the invention has a multi-channel transmission capability, and is suitable for multi-beam parallel transmission in a high-resolution ultraviolet lithography system.

The utility model discloses a high-efficiency deep ultraviolet LED light source which comprises a support, an LED chip, a reflection cup and a light window covering the LED chip and the reflection cup, the support comprises a substrate, an electrode bonding pad arranged on the upper surface of the substrate, a support bonding pad arranged on the lower surface of the substrate and electrically connected with the electrode bonding pad, and a welding layer arranged on the periphery of the electrode bonding pad, the LED chip is welded on the electrode bonding pad, the reflecting cup is annular and surrounds the periphery of the LED chip, the inner side of the reflecting cup is provided with a reflecting surface which is gradually raised from inside to outside, the upper surface of the substrate is also provided with a positioning box dam, and the bottom surface of the reflecting cup is provided with a positioning notch which is mutually matched with the positioning box dam. The utility model has the advantage that the light extraction efficiency is easily improved on the basis of the existing inorganic packaging.

The invention discloses a blade state monitoring device for a wind driven generator and the wind driven generator, and relates to the field of data monitoring, and the blade state monitoring device comprises a device integration multi-mode sensor module, a self-cleaning deicing module, a lightning stroke monitoring module, an edge calculation module, an anti-typhoon monitoring module, an energy supply module and a communication gateway module. Strain, vibration and temperature sensors are arranged at the root, the tip and the surface of the blade, and an icing detector is arranged at the front edge. And deicing is realized through hot air injection and the nano coating. And a lightning sensor and ultraviolet imaging are used for positioning lightning stroke. And an AI chip is arranged in the edge computing node to diagnose damage. The fiber grating sensor monitors typhoon strain. The solar film and the miniature wind driven generator supply power. And the communication module supports LoRaWAN and Beidou short messages. And the far-end intelligent diagnosis module predicts the service life through machine learning and provides maintenance suggestions. The system has the advantages that the blade state is accurately monitored in real time through the integrated multi-mode sensor and module technology, operation safety is guaranteed, the service life of equipment is prolonged, and efficient utilization of clean energy is facilitated.

The invention discloses a high-beam-quality 193nm ultraviolet laser generating device, and relates to the technical field of laser electronics. The device comprises a 1064nm picosecond pumping laser source and a 2053nm picosecond laser source which are used for generating pumping laser; the frequency doubling crystal, the frequency quadruplicating crystal, the 213nm sum frequency crystal and the 193nm sum frequency crystal are used for nonlinear frequency conversion; the temperature control device is used for controlling the temperature of the crystal; the dichroic mirror is used for separating the laser; the cylindrical mirror is used for beam shaping; and a lens for focusing the light beam. According to the device, a 1064nm light source is used for performing quadruplicated frequency to obtain 213nm laser, and the obtained 213nm laser and 2053nm laser are input into a nonlinear frequency conversion module to obtain 193nm laser. The device ensures high power of laser output, has good stability and excellent light beam quality, is simple in structure, and is suitable for the fields of photoetching, spectroscopy, medicine and the like.