25 results about "Green yellow" patented technology

The invention belongs to the technical field of fluorescent polymer materials, and particularly discloses bifuran polyamide with high quantum yield and capable of emitting yellow-green wavelength light as well as a preparation method and application of the bifuran polyamide. The method comprises the following steps: dissolving a bifuranoyl chloride monomer in an organic solvent to obtain an organic phase; adding an alkaline aqueous solution into the organic phase to form a phase interface, then adding a diamine monomer, and stirring to carry out an interfacial polymerization reaction; and after the reaction is finished, filtering, precipitating, washing and drying to obtain the bifuran polyamide. The bifuran polyamide is prepared by regulating and controlling the main chain structure and chain rigidity and flexibility of the polymer through a diamine monomer with a specific molecular structure, the emission wavelength of the amorphous bifuran polyamide can reach 540-552 nm under exciting light of 480 nm, red shift is performed to 565-568 nm after crystallization, long-wavelength yellow-green light emission, high-quantum-yield light emission and good biocompatibility are achieved, and the bifuran polyamide can be applied to the field of organic light emitting devices, such as organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices and the like. The application of the bio-based polyamide in the field of biological imaging is expanded.

The utility model provides a light source device and a lamp. A containing groove is formed in a support of the light source device. The first blue light chip is arranged on the groove bottom of the accommodating groove, and the first blue light chip is used for emitting blue light of which the peak wavelength is a; the second blue light chip is arranged on the groove bottom of the containing groove, the second blue light chip and the first blue light chip are arranged in a spaced mode, the second blue light chip is used for emitting blue light with the peak wavelength being b, and b is larger than a; the first fluorescent structure covers the first blue light chip; the second fluorescent structure covers the second blue light chip and the first fluorescent structure, and the second fluorescent structure comprises yellow-green fluorescent powder; according to the invention, a regional excitation structure can be formed, light of different colors can be excited in a targeted manner to complement spectrum deficiency, and the overall color rendering index can be improved; meanwhile, mutual absorption loss between different fluorescent structures is reduced through dual-wavelength hierarchical excitation and physical isolation of the fluorescent structures, and optimization of light extraction efficiency is facilitated.

The application discloses an aggregation-induced emission metal organic framework, a preparation method thereof and fluorescent / colorimetric dual-mode intelligent detection for trace HCl. 2+ The aggregation-induced emission metal organic framework is prepared by providing Zn(NO3)3.6H2O as Zn 2+ , imidazole-2-formaldehyde and an AIE molecule HDBB as organic ligands, and through a solvothermal method to obtain ZIF-90-HDBB, which can change the aggregation state fluorescence from yellow green to orange red after being contacted with HCl gas; the ZIF-90-HDBB is uniformly loaded on cellulose filter paper to obtain a paper-based sensor for portable detection of HCl, and through combination with a color recognition APP of a smart phone, the HCl can be rapidly and sensitively detected on site in a fluorescent / colorimetric dual mode. Since the HDBB molecule is prone to protonation under acidic conditions, the fluorescence color changes, and therefore the material can be accurately and efficiently used for detection of acidic gas, and the material can be recycled.

To provide a vacuum cleaner provided with a suction port body for reducing the feeling of incompatibility of light emitted to a surface to be cleaned and improving the visibility of dust on the surface to be cleaned.SOLUTION: The suction port body 20 of the vacuum cleaner 1 includes an irradiation part 202 for irradiating a surface to be cleaned with light. The illumination unit 202 includes a toning LED (LED221) that emits light adjusted to include wavelengths of green and white, and the toning LED is adjusted by mixing a blue LED with a yellow-green phosphor and a yellow phosphor.SELECTED DRAWING: Figure 10

The invention relates to the technical field of marking adhesives, in particular to an aircraft high-temperature-resistant torque marking adhesive and a preparation method and application thereof.The aircraft high-temperature-resistant torque marking adhesive is prepared from, by mass, 50%-60% of Dynasyl SIVO 140, 1%-2% of magnesium lithium silicate, 2%-3% of hydrophilic vapor-phase silicon dioxide, 35%-41% of filler, 1%-2% of mildew preventive and 1%-2% of europium-doped silicate fluorescent powder. The water-based inorganic sol-gel resin DynasylanSIVO 140 based on a silane technology is used as an adhesive, can resist the high temperature of 1000 DEG C, does not crack, and can be cured at room temperature; meanwhile, europium-doped silicate fluorescent powder is added into the components of the marking glue, so that yellow-green fluorescence can be displayed under the irradiation of 365nm ultraviolet light, the visibility of tiny cracks is improved, and the detection sensitivity is improved; in addition, the airplane high-temperature-resistant torque marking adhesive is prepared according to the mass percent, can meet the technical index of the enterprise standard BMS8-45 of the Boeing company, and has high efficiency and reliability.

The embodiment of the utility model discloses a light source module, a lamp and a lighting system, and relates to the technical field of electronics. The light source module comprises a first light emitting unit used for emitting controlled first color temperature white light; the second light emitting unit is used for emitting controlled second color temperature white light; the third light emitting unit is used for emitting controlled first color light; and the fourth light emitting unit is used for emitting controlled second color light, the first color temperature white light, the second color temperature white light, the first color light and the second color light are used for light mixing to obtain target color temperature white light, the first color light is long-wave red light, and the second color light is yellow-green light. According to the light source module, the lamp and the lighting system, the color band range of the target color temperature white light can be expanded, meanwhile, the color deviation of the target color temperature white light is reduced, and the overall light quality is improved.

The invention relates to the technical field of environment-friendly high polymer materials and functional coatings, and discloses yellow-green fluorescent water-borne epoxy resin for photovoltaic aluminum profiles and a preparation method of the yellow-green fluorescent water-borne epoxy resin. The method comprises the following steps: S1, synthesizing fluorescent dihydric alcohol (NTDI-Diol), S2, synthesizing a fluorescent dicarboxylic acid chain extender (CA-Fluo), S3, taking the CA-Fluo as a chain extender, carrying out ring-opening addition reaction with epoxy resin, and carrying out composite hydrophilic modification and phase inversion emulsification, so as to prepare the waterborne epoxy resin with low-temperature rapid curing, high flexibility and intrinsic fluorescence function. According to the invention, the synergism of technical characteristics and effects is realized through molecular structure design, and the coating can be hard-dried at 5 DEG C for 36 hours, has fluorescence performance and excellent salt fog resistance, is suitable for high-end industrial coating of photovoltaic aluminum profiles and the like, and has a good application prospect.

The application belongs to the technical field of nonlinear optical crystal and semiconductor functional crystal material, and relates to a growth method of lithium-rich yellow-green LiInSe2 single crystal and application thereof. The method comprises the following steps: S1, placing non-equimolar yellow-green LiInSe2 polycrystalline material in a pBN crucible with a seed crystal section, and then placing the pBN crucible in a quartz crucible, sealing the quartz crucible after vacuumizing to form a sealed double-crucible system; S2, completely melting the yellow-green LiInSe2 polycrystalline material by low-temperature overheating in a rotating state; S3, lowering the sealed double-crucible system from a high-temperature zone and passing through a temperature gradient zone to enter a low-temperature zone in a rotating state, and then pulling back the whole to re-enter the high-temperature zone after cooling; repeating the lowering-pulling back multiple times to complete the cycle of melting-recrystallization; and S4, cooling to room temperature to obtain the lithium-rich yellow-green LiInSe2 single crystal. The lithium-rich yellow-green LiInSe2 single crystal prepared by the method has significant advantages in single crystal rate, process robustness, crystallization quality and detection performance.

The invention discloses a method for detecting the content of ferrous iron impurities in a lithium supplementing material and application of the method, and belongs to the technical field of lithium ion battery pre-lithiation. According to the technical scheme, the method comprises a lithium ferrite pretreatment step and a potassium permanganate titration step, the lithium ferrite pretreatment step comprises the following steps: adding lithium ferrite into concentrated hydrochloric acid for dissolving, carrying out suction filtration after dissolving to obtain a clear yellow green liquid, and then diluting to obtain a to-be-titrated liquid. The invention provides the method for detecting the content of the ferrous iron impurity in the lithium supplementing material, the detection method is simple and rapid to operate, has an important promotion effect on the detection of the purity of lithium ferrite, can also be used for analyzing and guiding the modification of the lithium ferrite material, and has important significance on improving the performance of the material.

Disclosed is a light emitting display device including a substrate having first to fourth subpixels, first to fourth anodes provided respectively on the first to fourth subpixels, an emission unit provided on the first to fourth anodes, the emission unit including two or more blue stacks and a phosphorescent stack including at least a yellowish green emission layer and a green emission layer, a cathode provided on the emission unit, a red filter and a color conversion layer provided between the substrate and the first anode, a green filter provided between the substrate and the second anode, and a blue filter provided between the substrate and the third anode, wherein the first anode has a first thickness, and at least one of the second to fourth anodes has a second thickness greater than the thickness of the first anode.

The application discloses a kind of transmission type three-layer composite structure fluorescent ceramic for laser illumination and a preparation method thereof, and the fluorescent ceramic is three-layer composite structure from top to bottom in turn (Re 1‑x Ce x )3Al5O 12 Yellow-green fluorescent layer, transparent high-thermal-conductivity heat-dissipation layer, (A 1‑y Ce y )3(Al 1‑z B z )5O 12 Red fluorescent layer. The preparation method comprises the following steps: placing yellow-green fluorescent ceramic obtained by dry pressing into the bottom of a copper mold, pouring magnesium-aluminum spinel molten liquid into the preheated copper mold, placing red fluorescent ceramic above the molten liquid, and placing the composite structure material obtained after cooling in a muffle furnace for crystallization treatment to obtain the composite structure fluorescent ceramic of yellow-green fluorescent layer / transparent high-thermal-conductivity heat-dissipation layer / red fluorescent layer. The method can realize good connection and combination between different ceramic matrices, and has the advantages of simple process and low cost. The obtained transmission type composite structure fluorescent ceramic can maintain higher luminous intensity at high temperature, and excellent color rendering property can be obtained.

The application relates to a fishery lighting LED light source, which comprises a support, a first blue light LED chip, a second blue light LED chip, a bonding wire and fluorescent glue, a bowl cup is arranged on the support; the first blue light LED chip and the second blue light LED chip are arranged at the bottom of the bowl cup and are connected in series, wherein the first blue light LED chip is connected with a conductive part one through the bonding wire, and the second blue light LED chip is connected with a conductive part two through the bonding wire; the bowl cup is filled with the fluorescent glue, the fluorescent glue covers the whole functional area, the first blue light LED chip, the second blue light LED chip and all the bonding wires; the fluorescent glue comprises silicon A glue, silicon B glue, green fluorescent powder, yellow-green fluorescent powder and red fluorescent powder; the fishery lighting LED light source is prepared through the blue light chip and specific fluorescent powder, a double-wave-peak spectrum with good continuity is formed, the peak spectrum band has high sensitivity to the cone cells of marine fishes, has strong penetration in seawater and has good gathering effect on the marine fishes.

The preparation method of a phosphorescent group 7H-indole [2,3-c] quinoline series derivative with light response belongs to the field of organic intelligent materials. Several organic phosphorescent materials with NBCz as the core provided in the application can realize a color change from green or yellow-green afterglow to orange-yellow afterglow under the influence of different light activation times of a 365nm ultraviolet lamp, so as to achieve light-induced phosphorescent color change-stimulative response, and therefore can be widely applied to anti-counterfeiting, data encryption and sensing applications. The organic phosphorescent material with NBCz as the core has the following advantages: (1) simple and easy-to-follow synthesis route; (2) simple light activation condition; (3) large stokes shift, and remarkable effect.

The application discloses a kind of high efficiency high thermal stability high color rendering index composite fluorescent ceramic for solid-state lighting and a preparation method thereof.The composite fluorescent ceramic has a three-layer composite structure, which comprises, from top to bottom, a red fluorescent film, a high light efficiency yellow-green fluorescent ceramic as a substrate, and a copper heat sink.The preparation method comprises the following steps: preparing the high light efficiency yellow-green fluorescent ceramic by batching, tabletting and vacuum sintering; mixing red fluorescent glass powder with an organic binder to obtain a fluorescent glass colloid; spin-coating the fluorescent glass colloid on the surface of the high light efficiency yellow-green fluorescent ceramic, and placing it in an oven for heat preservation to obtain a composite fluorescent glass-ceramic; and fixing the composite fluorescent glass-ceramic on the copper heat sink after sintering.The method can realize good connection and compounding between different ceramic substrates and the copper heat sink, and has the advantages of simple process, low cost and industrial production.The prepared composite fluorescent ceramic has the characteristics of high light efficiency, high thermal stability and high color rendering index.

The present disclosure relates to an LED assembly, an LED filament and an LED lamp, the LED assembly comprising: at least one first blue light LED chip, the at least one first blue light LED chip having a peak emission wavelength between 445 nm and 465 nm; the first blue light LED chip has a peak emission wavelength ranging from 465 nm to 480 nm, the second blue light LED chip has a peak emission wavelength ranging from 465 nm to 480 nm, and the first blue light LED chip and the second blue light LED chip are combined to form an LED packaging body; the peak emission wavelength of the yellow-green fluorescent powder ranges from 510 nm to 535 nm, and the yellow-green fluorescent powder is coated on the surface of the LED packaging body. Through the mode, the peak emission wavelength of the blue light of the LED assembly is dispersed in the range of 445 nm to 465 nm and the range of 465 nm to 480 nm, and the peak intensity of the blue light is reduced in the two ranges, so that on one hand, the harm of the blue light to human eyes is reduced, and on the other hand, the degradation of the lighting effect and the color rendering property of white light is avoided.

The invention relates to the technical field of LED (light-emitting diode) lamp bead packaging technology, and particularly discloses a mosquito-repellent lamp bead packaging adhesive which comprises the following components in parts by mass: 2.1 parts of yellow-green fluorescent powder, 0.005 part of red fluorescent powder and 2.21 parts of double-component adhesive, and the packaging colloid emits a mosquito repelling spectrum under the excitation of blue light with the wavelength of 455nm-460nm emitted by the LED chip. The invention also discloses a mosquito-repellent lamp bead using the packaging adhesive. The invention also discloses a mosquito-repellent lamp bead using the packaging adhesive. According to the invention, the packaging adhesive capable of emitting accurate and efficient mosquito-repelling spectrums is successfully prepared through specific components and accurate proportion, and the prepared mosquito-repelling lamp bead is remarkable in effect, environment-friendly and safe.

Provided is an LED assembly, an LED filament and an LED lamp, where the LED assembly has at least one first blue LED chip having a peak emission wavelength between 445 nm and 465 nm, at least one second blue LED chip having a peak emission wavelength between 465 and 480 nm, and the first blue LED chip and the second blue LED chip are combined to form an LED package, and a yellow-green phosphor having a peak emission wavelength between 510 nm and 535 nm, coated on the surface of the LED package. The peak emission wavelength of blue light of an LED assembly is dispersed within the ranges of 445 nm to 465 nm and 465 nm to 480 nm, and the peak intensity of the blue light is reduced within the two ranges.

An organic light-emitting diode display device includes a first electrode, a first stack emitting blue light, a first charge generation layer on the first stack; a second stack emitting yellow-green light, a second charge generation layer on the second stack, a third stack emitting blue light, and a second electrode on the third stack, wherein at least one of the first stack and the third stack further emits red light, wherein the at least one of the first stack and the third stack includes a first red emitting material layer and a blue emitting material layer, and wherein each of the first red emitting material layer and the blue emitting material layer includes a host and a dopant, and a T1 energy of the host of the blue emitting material layer is greater than a T1 energy of the dopant of the first red emitting material layer.

The application discloses a yellow-green anti-quenching fluorescent water-based epoxy coating and a preparation method and application thereof, and belongs to the field of environment-friendly functional coatings. The coating comprises two components A and B. The component A takes CE-Fluo resin with covalently bonded NTDI fluorophore as the core, and is matched with rutile titanium dioxide and other anti-quenching components. The component B is compounded by a low-temperature curing agent and a BDMA accelerator. The application avoids ACQ quenching through intrinsic fluorescence design, eliminates pigment quenching through rutile titanium dioxide, realizes 5 DEG C fast curing through a low-temperature system, balances mechanical properties through a rigid-flexible combined resin, and the coating has high strength and high toughness, long-acting corrosion resistance and stable yellow-green fluorescence, and is suitable for 6005 aluminum alloy photovoltaic frames and precise instrument housings. The application solves the problems of fluorescent quenching, slow low-temperature curing and mechanical imbalance, realizes single-coating multi-functional integration, is environment-friendly and low in VOC, and is convenient to construct.

An organic light-emitting diode display device includes a first electrode, a first stack emitting blue light, a first charge generation layer on the first stack; a second stack emitting yellow-green light, a second charge generation layer on the second stack, a third stack emitting blue light, and a second electrode on the third stack, wherein at least one of the first stack and the third stack further emits red light, wherein the at least one of the first stack and the third stack includes a first red emitting material layer and a blue emitting material layer, and wherein each of the first red emitting material layer and the blue emitting material layer includes a host and a dopant, and a T1 energy of the host of the blue emitting material layer is greater than a T1 energy of the dopant of the first red emitting material layer.

The utility model discloses yellow-green double-tone light blue double-silver low-emissivity coated glass which comprises a glass substrate, a base dielectric layer, a base second dielectric layer, a first barrier layer, a first functional silver layer, a first dielectric protective layer, a middle dielectric layer, a middle third dielectric layer, a second functional silver layer, a second barrier layer, an upper dielectric layer, an upper second dielectric layer and an outer protective layer are sequentially arranged on one side of the glass substrate from inside to outside; the color cast of the glass surface of the product is light blue, and the film surface is slightly yellow-green, so that a dark-tone glass product is brought to the market, and a building main body is relatively stable and elegant; and the LED lamp has low radiance, is very practical in performance and appearance, and can be popularized to civil buildings.

The invention relates to an illumination light source. The lighting source comprises a light emitting diode and fluorescent glue used for packaging the light emitting diode, the fluorescent glue comprises fluorescent powder and a silica gel composition mixed with the fluorescent powder, the light emitting diode is a blue light chip, the fluorescent powder comprises first red fluorescent powder with the full width at half maximum FWHM smaller than 60 nm and second red fluorescent powder with the full width at half maximum FWHM larger than 60 nm, and the first red fluorescent powder comprises first red fluorescent powder with the full width at half maximum FWHM smaller than 60 nm. The weight ratio of the first red fluorescent powder to the second red fluorescent powder is greater than 4: 1; the fluorescent powder further comprises at least one kind of yellow or yellow-green fluorescent powder, and the emission wavelength of the blue light chip is 420-480 nm. The illumination light source enables a user to perceive enhanced color preference, thereby further improving the sales volume of the illumination device comprising the light source and reducing the cost.

The invention discloses a boron-containing solid-liquid double-state fluorescent polymer material with solvent polarity responsiveness. The boron-containing solid-liquid double-state fluorescent polymer material with solvent polarity responsiveness can emit light in both solid and liquid states, and after the polymer is dissolved in organic solvents with different polarities, the solution fluorescence can be subjected to red shift along with the increase of the polarity of the solvents and can be subjected to red shift from cyan blue to yellow green. The invention also provides a preparation method of the boron-containing solid-liquid double-state fluorescent high polymer material with solvent polarity responsiveness, the synthesis method is simple in process, convenient to operate and low in cost, the application of the material in the field of fluorescence detection is greatly widened, and the material has a good application prospect on the basis of the unique and sensitive fluorescence response characteristic of the material to the solvent polarity. The fluorescent probe shows relatively important application potential in the fields of fluorescence sensing, chemical detection, microenvironment probes and the like, and is expected to be widely applied to the leading edge directions of environment monitoring, biomedical detection and the like.

1. Name of the product in this design: Body of a door handle. 2. Purpose of this design: The overall purpose of the product is for use as a door handle, and the part for which protection is required is the main body of the door handle. 3. The key design features of this product are the shape of the part for which protection is sought. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: The parts covered by yellow-green in the rear view are the parts for which protection is not sought in this case.

The invention relates to the technical field of LED lighting, and provides a manufacturing method of an LED light-emitting structure, which comprises the following steps that: a plurality of chips are arranged on a substrate at intervals, and each group of light-emitting unit comprises a first chip, a second chip and a third chip; coating a high-reflection packaging material on the peripheral side of each chip, and forming a reflecting layer; coating an optical coupling material on the upper surfaces of the first chip and the second chip to form an optical coupling layer; a red fluorescent film and a yellow-green fluorescent film are sequentially attached to the optical coupling layers of the first chip and the second chip, the first chip excites the red fluorescent film to emit red light, and the second chip excites the yellow-green fluorescent film to emit yellow-green light; coating outer-layer cold white fluorescent glue to cover the upper surface of the third chip, and exciting the outer-layer cold white fluorescent glue to emit cold white light by the third chip; a fluorescent powder spraying process is replaced by a film pasting process, red, yellow green and cold white are mixed, and color temperature adjustment of 2000K-20000K is realized.