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1848results about "Energy efficient lighting" patented technology

Intelligent lamp pole welding device and method based on wind-solar hybrid street lamp production

The invention discloses an intelligent lamp pole welding device and method based on wind-solar hybrid street lamp production, and relates to the technical field of welding devices. By arranging the welding slag grinding and removing mechanism, the position of the lamp pole can be limited from multiple angles, it is guaranteed that the position of the lamp pole cannot shake, meanwhile, the position of a grinding wheel is limited, it is guaranteed that a flat and smooth plane can be formed in a grinding area, welding slag and burrs can be ground immediately after a welding seam is welded, and the welding quality is improved. Secondary cleaning of a welding seam is not needed; when the partition plate units in the multiple positions are subjected to acting force of the outer wall of the lamp pole, the partition plate units can adaptively ascend and descend according to the acting force of the opposite partition plate units in different positions of the arc-shaped face of the lamp pole, so that the bottom ends of the partition plate units jointly form an outline matched with the arc-shaped face of the lamp pole. Therefore, a relatively closed space can be formed in the polishing area of the lamp post, polishing dust is isolated in the closed space, and the situation of dust splashing is further avoided.
Owner:JIANGSU HONGZHONG ELECTRIC GRP CO LTD

LED corn lamp with embedded heat dissipation structure

The invention relates to the technical field of lighting devices, in particular to an LED corn lamp with an embedded heat dissipation structure, the LED corn lamp comprises a lamp holder and a lamp shell, a plurality of lamp bodies which are circumferentially distributed at equal intervals are arranged on the outer wall of the lamp holder, each lamp body is formed by linearly arranging a plurality of lamp beads at equal intervals, a heat conduction frame is welded to the outer wall of the lamp shell, and the heat conduction frame is welded to the lamp shell. And a transparent cover is sleeved on the outer side area of the lamp shell, which is positioned on the heat conducting frame. According to the LED lamp, through the arranged first heat dissipation mechanism, after the temperature in the lamp rises, expansion liquid is heated to expand, a first piston drives a second piston to move upwards, and therefore external cold air is sucked into the lamp shell, and the heat dissipation effect is achieved; and the first transmission shaft drives the second transmission shaft to rotate, so that the gear drives the heat dissipation fan to rotate quickly, the effect of blowing air to the outer wall of the lamp shell for heat dissipation is achieved, and the situation that extra electric power is needed for driving heat dissipation is avoided.
Owner:HANDAN MEITUO ELECTROMECHANICAL EQUIPMENT CO LTD

Fluorescent powder material based on double perovskite structure and preparation method and application thereof

The invention is suitable for the technical field of inorganic luminescent materials, and provides a fluorescent powder material based on a double-perovskite structure and a preparation method and application thereof. The general chemical formula of the fluorescent powder is Ca2AlNbO6: xEu < 3 + >, wherein x is a molar fraction of 0.06 to 0.30; the excitation spectrum coverage range of the fluorescent powder under the condition of monitoring the emission wavelength of 615 nm is 260-500 nm, and the emission main peak is located at 615 nm; when x is equal to 0.18, the quantum efficiency under the excitation of 396nm ultraviolet light is greater than or equal to 91%, and the red light emission ratio is greater than or equal to 85%. According to the invention, Ca2AlNbO6 double perovskite is taken as a substrate, and a red fluorescent powder material with wide-spectrum excitation and high quantum efficiency is designed through Eu < 3 + > high-concentration doping and local symmetry regulation and control design engineering, so that the characteristics of high quantum efficiency, efficient red light emission, wide-spectrum excitation and excellent concentration quenching resistance are realized.
Owner:JILIN JIANZHU UNIVERSITY

Beta-sialon phosphor and light emitting device

A europium-doped β-sialon phosphor, in which, when the ratio of an aluminum element at a depth of 8 nm from the surface of the phosphor, which is obtained by X-ray photoelectron spectroscopy, is indicated by P8 [at %], and the ratio of an aluminum element at a depth of 80 nm from the surface of the phosphor is indicated by P80 [at %], P8 / P80≤0.9 is satisfied. A light emitting device containing this β-sialon phosphor.
Owner:DENKA CO LTD

Single-stand-column vertical-axis photovoltaic tracking system of integrated street lamp and control method of single-stand-column vertical-axis photovoltaic tracking system

The invention discloses a single-stand-column vertical-axis photovoltaic tracking system of an integrated street lamp and a control method of the single-stand-column vertical-axis photovoltaic tracking system, and belongs to the field of solar photovoltaic power generation technologies and smart city infrastructures. Comprising a rotatable photovoltaic module support structure installed on a single stand column, an LED street lamp lighting device, a transmission mechanism based on a stepping motor, an orientation detection module integrated with a magnetic sensor and a gyroscope, an embedded tracking control system, an energy management system and a cloud platform management system. High-precision sun tracking is realized through closed-loop control of astronomical algorithm and sensor fusion, and functions of automatic north finding and motor out-of-step correction are realized; the system safety is improved by adopting a dual-threshold control regionalization cooperation gale protection strategy; high-capacity photovoltaic and street lamp functions are integrated to guarantee all-weather illumination. The distributed photovoltaic application scene is expanded, the service life of the system is prolonged, the problem that a traditional solar street lamp is low in lighting rate is solved, and the multifunctional and intensive development requirements of smart city infrastructures are met.
Owner:SHENZHEN HUAJIE ELECTRICAL TECH

High-stability multi-cavity liquid-cooled street lamp

The high-stability multi-cavity liquid-cooled street lamp comprises a shell, a lighting unit is arranged in the shell, a heat absorption assembly is arranged at the position corresponding to the lighting unit, and a first cavity and a second cavity are formed in the heat absorption assembly; a mounting base is further arranged in the shell, and a cooling box filled with cooling liquid, a liquid pumping mechanism arranged between the cooling box and the heat absorption assembly and a switching mechanism in transmission connection with the liquid pumping mechanism are arranged on the mounting base; the lighting unit has a low-power mode and a high-power mode; in the low-power mode, the switching mechanism enables the cooling liquid to circulate between the first cavity and the cooling box; in a high-power mode, the switching mechanism enables the cooling liquid to circulate among the first cavity, the second cavity and the cooling box; heat dissipation is matched with the working mode of the street lamp, heat is effectively dissipated in time, energy consumption is reduced, the stable performance of the street lamp is improved, and the service life of the street lamp is prolonged.
Owner:GUANGDONG DOPDEA ENERGY TECH CO LTD

Red fluorescent material excited by blue light, LED device and fluorescent ceramic

The invention relates to a red fluorescent material excited by blue light, an LED device and fluorescent ceramic. The chemical formula of the red fluorescent material is La (2-x) MgNbO6.5: xEu < 3 + >, wherein x is more than or equal to 0.01 and less than or equal to 0.1. The preparation method comprises the following steps: weighing lanthanum oxide, magnesium oxide, niobium oxide and europium oxide raw materials according to a stoichiometric ratio, grinding and uniformly mixing; sintering the uniformly mixed powder in a muffle furnace at high temperature, and cooling to room temperature to obtain the red fluorescent material. Compared with the prior art, the novel oxide-based red fluorescent powder prepared by the invention can emit positive red light of which the central wavelength is 616nm under the excitation of 465nm blue light, and can be used for white light LED (Light Emitting Diode) luminescent devices and fluorescent ceramics.
Owner:SHANGHAI INST OF TECH

Maintenance method and system of solar power generation street lamp

The invention discloses a maintenance method and system of a solar power generation street lamp, and relates to the maintenance method and system of the solar power generation street lamp. The method comprises the following steps: acquiring detection data of each solar power generation street lamp in a target area within a preset duration and environmental data of the target area; judging whether the solar power generation street lamps in the target area are in a shielding state or not based on the detection data and the environmental data, wherein the shielding state is used for representing the shielding degree of the solar power generation street lamps by trees in the target area; and if it is determined that the solar power generation street lamp in the target area is in the shielding state, generating a maintenance suggestion corresponding to the shielding state. By implementing the technical scheme provided by the invention, the maintenance suggestion corresponding to the shielding state can be automatically generated, so that the maintenance personnel can reasonably plan the maintenance work, the maintenance efficiency is improved, and the waste of maintenance resources is avoided.
Owner:HUBEI JIFANG TECH CO LTD

Double-shell narrow-band red-light fluorescent powder as well as preparation method and application thereof

The invention belongs to the technical field of preparation of fluorescent powder, and particularly relates to double-shell narrow-band red-light fluorescent powder as well as a preparation method and application thereof. The narrow-band red-light fluorescent powder is Mn < 4 + >-doped potassium fluosilicate fluorescent powder, and the narrow-band red-light fluorescent powder is coated with a potassium fluosilicate inner shell layer and a cystine outer shell layer. The preparation method comprises the following steps: mixing a cysteine solution with the narrow-band red-light fluorescent powder, stirring, centrifuging, and drying the precipitate obtained by centrifuging to obtain the double-shell narrow-band red-light fluorescent powder. The surface of the prepared fluorescent powder is provided with the Mn < 4 + >-free potassium fluosilicate inner shell layer and the outer hydrophobic cystine layer, the surface of the core narrow-band red-light fluorescent powder is covered with the double-shell structure, the water resistance and the light-emitting characteristic of the narrow-band red-light fluorescent powder can be remarkably improved, and the wide application prospect is achieved.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE

Multi-layer insulation space power equipment pile head warning lamp capable of being installed without power outage and installation method of multi-layer insulation space power equipment pile head warning lamp

The invention discloses a multi-layer insulation space power equipment pile head warning lamp capable of being installed without power outage and an installation method, and aims to solve the problems that an existing insulation protective cover is fast in aging, poor in insulation, not firm in fixation and incapable of being installed without power outage, and the multi-layer insulation space power equipment pile head warning lamp comprises a cover body, a left sliding block, a right sliding block and two sets of turnover type locking mechanisms. According to the cover body, an inner layer plate, an outer layer plate and a connecting plate form a double-layer structure, a left sliding way and a right sliding way are formed, a sliding block adopts a double-layer insulation design and is matched with a one-way ratchet structure to achieve self-locking, two sets of overturning type locking mechanisms complete mechanical locking of a notch, a pressing rod is driven to operate through an insulating rod during installation, power failure is not needed, and installation is convenient. Fixing is completed through the three steps of positioning, locking and sliding block closing, the protective cover is arranged in a suspended mode, the insulation distance is increased, insulation is stable, wind resistance is high, aging is slow, warning can be achieved, and the protective cover is suitable for protection of various power equipment heads and excellent in practicability.
Owner:JIAXING XINNIU ELECTRIC POWER TECH CO LTD

Preparation method of perovskite blue light illuminant film and white light emitting diode

The invention provides a preparation method of a perovskite cyan light illuminant film and a white light emitting diode, the light emitting surface of the white light emitting diode is provided with the perovskite cyan light illuminant film, and the perovskite cyan light illuminant film can reduce the color temperature of the white light emitting diode. The color rendering index of the white light emitting diode is improved; the perovskite blue light illuminant film absorbs blue light which is emitted by the white light emitting diode and has a wavelength less than 455nm, and compensates for the deficiency of blue light with a wavelength range of 470-520nm; the chemical formula of the cyan light illuminant is CsPb (BrCl) 3: Ba; wherein Ba is a doped barium ion. According to the perovskite blue light illuminant film, the color rendering index of a WLED is improved, and meanwhile blue light emitted by an LED chip is absorbed, so that harm to a human body is reduced.
Owner:WENZHOU XINXIN TAIJING TECH CO LTD

Light-emitting traffic cone

A light-emitting traffic cone includes: a cone body, having a hollow space; a base, connected to the cone body; and a light-emitting assembly, disposed on the base, the light-emitting assembly at least including a light-emitting body and a power supply, the light-emitting body being electrically connected to the power supply, and the light-emitting body being disposed at a position corresponding to the hollow space so that light emitted by the light-emitting body can irradiate into the hollow space. The light-emitting traffic cone can improve a warning effect.
Owner:CIXI SHUANGWEI ROAD FACILITIES CO LTD

1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl)-9H-carbazole and synthesis method thereof

The invention discloses 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl)-9H-carbazole and a synthesis method of the 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl) The method comprises the following steps: taking 3-nitrophthalic acid as an initial raw material, reacting trichloroisocyanuric acid with liquid bromine to obtain 1, 2-dibromo-3-nitrobenzene, reducing by stannous chloride to obtain 2, 3-dibromoaniline, carrying out diazotization reaction to obtain 2, 3-dibromophenylhydrazine, reacting with p-tert-butyl cyclohexanone, and reacting by using 2, 3-dichloro-5, 6-dibromophenylhydrazine to obtain 2, 3-dibromophenylhydrazine. The preparation method comprises the following steps: carrying out dehydrogenation on 2, 6-dicyanobenzoquinone to obtain 1, 2-dibromo-6-tert-butyl-9H-carbazole, and finally reacting the 1, 2-dibromo-6-tert-butyl-9H-carbazole with 4-tert-butyl iodobenzene to obtain the 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl)-9H-carbazole. Due to the existence of a bromine atom functional group on the 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl)-9H-carbazole, the further conversion of the compound has expandability, and the compound can be used as a material / drug molecule precursor in the fields of organic light-emitting semiconductors, pharmaceutical chemistry and the like.
Owner:NANJING UNIV OF SCI & TECH

Europium-doped silicate green fluorescent powder as well as preparation method and application thereof

The invention provides europium-doped silicate green fluorescent powder as well as a preparation method and application thereof, and belongs to the technical field of luminescent materials. The green fluorescent powder can generate narrow-spectrum green light with the peak value located at 532 nm under excitation of 450 nm blue light, the full width at half maximum is 46 nm, a white light LED device prepared based on the fluorescent powder has a 110% NTSC color gamut, and it is indicated that the green fluorescent powder has excellent application value in backlight display. The saturation threshold value of the fluorescent powder reaches 21.6 W / mm < 2 > under the excitation of 450nm blue laser, and the lumen at the moment reaches 1157.9 lm. The green fluorescent powder disclosed by the invention has the advantages of high luminous efficiency, narrow full width at half maximum, high light saturation threshold under blue laser excitation, high lumen efficiency and the like, and has application feasibility in the aspect of laser display.
Owner:LANZHOU UNIV

Blue light fluorescent powder with self-activation effect and preparation method thereof

The application belongs to the technical field of fluorescent material synthesis, and particularly relates to a blue fluorescent powder with self-activation effect and a preparation method thereof, the chemical formula of the blue fluorescent powder is Li2Mg2W2O9 or Li2Zn2W2O9; the preparation comprises the following steps: 1) according to the chemical proportion of the fluorescent powder, magnesium / zinc source, lithium source and tungsten source are weighed and uniformly ground; 2) the uniformly ground mixed powder is placed into an alumina crucible, sintering is carried out, and the product is fully reacted after heat preservation for a period of time; 3) the product is uniformly ground again after cooling, and the blue fluorescent powder with self-activation effect is obtained. The application utilizes the special lattice structure of the substrate, and obtains the blue fluorescent powder with self-activation effect under an air atmosphere; the generated product has high purity, simple synthesis conditions, low cost and is easy to be prepared on a large scale; the prepared fluorescent powder has a high internal quantum efficiency of 68.7%, high luminous intensity and unique blue light emission characteristics.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

High color purity multicolor electroluminescent fiber and its preparation method and application

The application belongs to the technical field of intelligent electronic devices, and particularly relates to a high-color-purity multi-color electroluminescent fiber and a preparation method and application thereof. The fiber is prepared by the following steps: preparing lead halide perovskite type nano quantum dots as light conversion particles by a hot injection method, a room temperature supersaturation recrystallization method and the like; grafting and modifying the lead halide perovskite type nano quantum dots on the surface of metal sulfide type electroluminescent particles through a surface ligand to obtain high-color-purity multi-color electroluminescent active material; compounding the light conversion particle modified electroluminescent active material and a transparent thermoplastic elastomer polymer to obtain active slurry, and coating the active slurry on the surface of a conductive fiber through a continuous limited coating process; loading an external electrode on the conductive fiber to obtain the high-color-purity multi-color electroluminescent fiber. The multi-color electroluminescent fiber prepared by the application has various colors and high color purity, and meets the color gamut range required by the luminescent fiber and display fabric.
Owner:FUDAN UNIVERSITY

Light capture system based on polybenzyl ether dendrimer as well as preparation method and application of light capture system

The invention discloses a light capture system based on a polybenzyl ether dendrimer as well as a preparation method and application of the light capture system. According to the light capture system, a core mono-cyano ethylene modified polybenzyl ether dendrimer is used as a light acquisition antenna and an energy donor, and a fluorescent dye is used as an energy receptor; the core mono-cyano ethylene modified polybenzyl ether dendrimer and the fluorescent dye are co-assembled in a solution to form a light capture system. The light capture system provided by the invention has excellent aggregation-induced emission performance, obviously enhanced fluorescence and narrower emission band, and can still maintain better energy transfer and ultrahigh antenna effect under a high donor-acceptor ratio; in addition, the preparation process is green and environment-friendly, and the light capture system is stable in structure and can be stored for a long time.
Owner:CHANGZHOU UNIV

A yellow-green fluorescent COFs material, its preparation method and application

The present invention discloses a yellow-green fluorescent COFs material, its preparation method and application, belonging to the fields of covalent organic framework materials and analytical detection. In the present invention, 4,4',4'',4'''-(ethene-1,1,2,2-tetrayl)tetraphenylaldehyde (ETBA) and a flexible organic monomer 4,4'-diaminodiphenyl ether (ODA) with chelating sites are used as raw materials, methanol and acetic acid are added and shaken for dispersion, frozen with liquid nitrogen, evacuated and reacted in a constant temperature oven, the product is collected by filtration, washed with anhydrous N,N-dimethylformamide and tetrahydrofuran respectively, and then centrifuged and washed with anhydrous acetone, the solid product is collected, dried in an oven to obtain yellow ETBA-ODA-COF powder. The present invention regulates the π-π interaction in the COF structure, synthesizes a kind of ETBA-ODA-COF material with yellow-green fluorescence, and can establish a fluorescent nanoprobe to realize the analysis and detection of metal Fe 3+ , Hg 2+ ions and folic acid small molecules.
Owner:YUNNAN UNIV

Preparation method of red light perovskite quantum dot with core-shell structure

The invention provides a preparation method of a red light perovskite quantum dot with a core-shell structure, and belongs to the technical field of quantum dot preparation. According to the method, a CsPbI3 quantum dot coarse solution and a cadmium sulfide precursor solution are mixed, stirred and heated to a certain temperature, cadmium sulfide grows on the surface of the quantum dot in an epitaxial mode, the red light CsPbI3 / CdS core-shell quantum dot is prepared, the formation of a core-shell structure is beneficial to passivation of defects on the surface of the quantum dot, and meanwhile ion migration and Auger recombination of the quantum dot are inhibited. The invention provides a solution for preparing the red light perovskite quantum dot light-emitting diode with high external quantum efficiency, long service life and low efficiency roll-off.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A street lamp pole processing device and processing method

The present invention discloses a street lamp pole processing device and a processing method, including a frame and a pole body, wherein the pole body is placed inside the frame, and both sides of the frame are fixedly connected with fixed vertical plates, and the fixed vertical plates are provided with clamping components inside, and the clamping components are used to clamp the pole body. The present invention can not only press the pole body from both sides by setting two abutment plates, and can adjust the extension length of the clamping plate at the same time, so as to facilitate adaptation to pole bodies of different sizes, but also can set a grinding disc that can revolve and rotate, so as to comprehensively grind the outer wall of the pole body and improve the grinding effect, and can also set a worm gear to adjust the spacing between multiple grinding discs, so as to facilitate adaptation to pole bodies of different sizes and improve the application range of the device.
Owner:JIANGSU MODERN LIGHTING GRP CO LTD

Tungstate-based flexible composite material with multi-mode dynamic color changing characteristic and preparation method of tungstate-based flexible composite material

The invention provides a tungstate-based flexible composite material with a multimode dynamic color change characteristic, which comprises an optical function material and a carrier material, the optical function material is tungstate-based fluorescent powder, and the tungstate-based fluorescent powder comprises Li (1-x) YW2O8: xEu (0% lt; xlt; 10%). According to the tungstate-based flexible composite material with the multimode dynamic color changing characteristic and the preparation method of the tungstate-based flexible composite material, a force-induced and light-induced multimode dynamic light-emitting composite material is prepared by mixing a polydimethylsiloxane solution A and a polydimethylsiloxane solution B in proportion and adding a certain amount of fluorescent powder LiYW2O8: Eu < 3 + >, and the tungstate-based flexible composite material with the multimode dynamic color changing characteristic can be obtained only through simple temperature change. According to the present invention, the change of the light emitting characteristic can be observed according to the temperature of the tungstate fluorescent powder, such as the hand temperature or the environment temperature, such that the temperature change photoluminescence material of the dynamic mechanoluminescence tungstate-based fluorescent powder has characteristics of large temperature change range, good stability, high light emitting efficiency and no environmental pollution, and most importantly, the mechanoluminescence does not need energy charging, and has the self-recovery effect.
Owner:王杉文

Preparation method and application of efficient blue light emission hybrid material

The invention belongs to the technical field of light-emitting hybrid materials, and particularly discloses a preparation method and application of an efficient blue light emitting hybrid material. The preparation method comprises the following steps: dispersing cuprous halide, triphenylphosphine (tpp) and tetraethylammonium halide in N, N-dimethylformamide (DMF) according to a molar ratio of 1: 1: 1 to form a uniform solution, and performing ultrasonic treatment at room temperature to generate luminescent powder; and washing, centrifuging and drying in vacuum to obtain the hybrid material. The highest photoluminescence quantum yield is up to 70%, and the luminescence mechanism is thermally activated delayed fluorescence. The material can be used for a white light LED (CIE coordinate (0.33, 0.33)) and an X-ray scintillator (the light yield is 32537 photons / MeV, and the spatial resolution is 20lpmm <-1 >), and has the characteristics of simple preparation and excellent performance.
Owner:SUN YAT SEN UNIV

Photovoltaic lighting structure for central isolation strip of expressway

The invention relates to the technical field of highway lighting, and particularly discloses a photovoltaic lighting structure for a central isolation strip of an expressway, the photovoltaic lighting structure comprises a plurality of foundation columns fixedly mounted on a highway pavement and a plurality of wave baffles mounted on the foundation columns, and a plurality of light holes are formed in the wave baffles; the lighting mechanism is arranged on the outer side of the outer wall, close to one side of the foundation column, in the wave baffle; the power mechanism is arranged in the middle of the road and can receive airflow flowing power generated when the two-way traffic flow passes through, convert the airflow flowing power and transmit the airflow flowing power to the lighting mechanism. The photovoltaic mechanism is arranged between the power mechanism and the lighting mechanism and used for providing electric energy for the lighting mechanism. The light-transmitting pieces can correspond to the light-transmitting holes in position, light of the lighting mechanism penetrates through the light-transmitting pieces to be projected on the road surface, and a plurality of warning irradiation areas with different distances from the wave baffle are formed. According to the invention, an integrated photovoltaic illumination structure with autonomous energy supply, anti-dazzle and accurate projection warning is realized.
Owner:YIRU ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH (SHANGHAI) CO LTD

Environment-friendly lighting equipment for subway tunnel

The invention relates to the technical field of tunnel lighting, and discloses environment-friendly subway tunnel lighting equipment which comprises a lighting unit, a rotating unit, a dust cleaning unit and a dust collecting unit. Wherein the lighting unit comprises a lamp shell, two fixing plates and a lamp tube, the two fixing plates are both fixed on the lamp shell, the lamp tube is made of a light-transmitting material, the lamp tube is rotatably assembled between the two fixing plates, the two fixing plates and the lamp tube jointly form a lighting space, and a lighting module composed of a light source and a control circuit is arranged in the lighting space. And a temperature sensor is mounted on the control circuit. The motor drives the rotating shaft and the dust removal roller to rotate, the function of automatically cleaning the surface of the lamp barrel is achieved, the bristles on the dust removal roller can continuously brush the surface of the lamp barrel, dust is effectively removed, the lamp barrel is prevented from being covered with the dust, and therefore the light transmission and the lighting effect of the lamp barrel are guaranteed.
Owner:SHENZHEN SMART LIGHTING CO LTD

Energy-saving lighting system and method for generating power by using tunnel piston wind

The invention belongs to the technical field of new energy application, and particularly relates to an energy-saving lighting system utilizing tunnel piston wind to generate electricity, which comprises a guide plate group connected to the top end of the inner wall of a tunnel; the flow guide fin group is connected to the inner wall of the tunnel entrance; the vortex generator is connected to the top end in the tunnel, and an air inlet of the vortex generator is close to the flow guide plate set; the energy storage battery is electrically connected to the vortex generator; the central control unit is electrically connected to the energy storage battery and the vortex generator; the induction illuminating lamp is electrically connected to the central control unit; the laser radar sensor is electrically connected to the central control unit; and the illumination intensity sensor is electrically connected to the central control unit. Compared with the prior art, the tunnel lighting system is simple in structure, high in energy efficiency and intelligent, the maintenance cost is remarkably reduced, the energy efficiency and reliability of the tunnel lighting system are effectively improved, the dependence on a remote power supply is reduced, and the overall energy consumption is reduced.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Method for producing semiconductor nanoparticles, semiconductor nanoparticles, and light-emitting device

Provided is a method of efficiently producing semiconductor nanoparticles that exhibit band-edge emission with a high band-edge emission purity. The method comprises performing a first heat treatment of a first mixture comprising a silver (Ag) salt, an indium (In) salt, a compound having a gallium-sulfur (Ga—S) bond, a first gallium halide, and an organic solvent, to obtain first semiconductor nanoparticles.
Owner:NAT UNIV CORP TOKAI NAT HIGHER EDUCATION & RES SYST +2

High color gamut photoluminescence wavelength converted white light emitting devices

A white light emitting device (backlight) comprises: a Multiple Quantum Well (MQW) dual-wavelength LED; and a narrowband photoluminescence material that generates red light with a peak emission wavelength from about 620 nm to about 660 nm. The MQW dual-wavelength LED comprises at least one first Quantum Well (QW) that generates blue light with a dominant wavelength from 440 nm to 470 nm and at least one second Quantum Well (QW) to generate green light with a dominant wavelength from 520 nm to 540 nm.
Owner:BRIDGELUX INC

Load control device having a capacitive touch surface

A control device configured for use in a load control system to control one or more electrical loads may comprise an actuation member having a front surface defining a touch sensitive surface configured to detect a point actuation along at least a portion of the front surface, a touch sensitive circuit, and a control circuit. The touch sensitive device may comprise one or more receiving capacitive touch pads located behind the actuation member and arranged in a linear array adjacent to the touch sensitive surface. The control circuit may be configured to operate using different filtering techniques based on the state / mode of the control device and / or based on whether the positions of point actuations by a user along the touch sensitive surface indicate a fine tune or gross adjustment by the user. For example, the control circuit may generate an output signal using light / no filtering or using heavy filtering.
Owner:LUTRON TECHNOLOGY COMPANY LLC

Solar photovoltaic integrated LED street lamp

ActiveCN222916249UPhotovoltaic supportsLighting support devicesStreet light controllerLED lamp
The utility model provides a solar photovoltaic integrated light-emitting diode (LED) street lamp, which relates to the field of solar LED street lamps and comprises a supporting assembly, the supporting assembly comprises a base, a vertical rod and a lamp holder, and a lighting assembly and a photovoltaic assembly are installed on the surface of the lamp holder. The illumination assembly comprises a protective cover, an LED lamp, a photosensitive sensor, an infrared sensor, a street lamp controller and a brightness regulator, the illumination assembly is used for providing illumination, and the photovoltaic assembly comprises a photovoltaic panel, a solar controller, a storage battery and an inverter; by arranging the photovoltaic panel, the solar controller, the storage battery and the inverter, the effect of providing electric energy for the lighting assembly is achieved, by arranging the lighting assembly, the effect of providing lighting at night is achieved, and by means of cooperation of the photosensitive sensor, the infrared sensor, the street lamp controller and the brightness regulator, the lighting effect is improved. The illumination brightness of the LED lamp can be adjusted in real time, so that the use of electric energy can be reduced, and the energy-saving and environment-friendly effects are achieved.
Owner:JIANGSU OUWEIDA LIGHTING TECHNOLOGY CO LTD