30results about How to "Good light transmission performance" patented technology

A transparent glass ceramics of RE-doped oxyfluoride is proportionally prepared from SiO2, Al2O3, EnF2, MF2 and ReF3, where M is 2-valence alkali-earth metal ion chosen from Mg, Ca, Sr, and Ba and Re is 3-valence RE ion chosen from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, through high fusing and heat treating. It can be extensive used in laser, luminous and optical communication field.

The invention discloses a method for using a recrystallization method to prepare a lead-halide perovskite nanowire. The method comprises the step of dropwise adding a poor solvent and a polar aprotic solvent in a spin coating process of preparation of APbI3 perovskite through a one-step method to prepare the lead-halide perovskite nanowire. The preparing method has the advantages that the operation is simple and convenient, and the reaction time can be saved. One-dimensional perovskite nanocrystalline film prepared through the one-step method is uniform in length and good in coverage degree, and can be used as a candidate material for an optical detector and a laser device. Compared with pure perovskite, the perovskite nanowire has a better optical conduction capability, and can be used in devices like an optical conductor and the laser device.

The invention discloses a projection imaging method and system based on red, green and blue LED light sources, belonging to the field of optical projection imaging. The method comprises the following steps of: forming a three-color rectangular primary color light beam by using a red LED light source module, a green LED light source module and a blue LED light source module; respectively and directly radiating a three-color LCD liquid crystal imaging plate to form a three-primary-color imaging light beam by using the three-color rectangular primary color light beam; and synthesizing the three-primary-color imaging light beam into colored imaging light rays through a three-primary-color light synthesizing module, and projecting and imaging through an imaging lens module. All LED light rays are converged at a center of a sphere to form a high-brightness convergent point light source by using the geometrical theory that the diameter of the sphere passes through the center of the sphere and the crown concave surface of the sphere as a base plate of the LED light source modules, and the technical problem of short-distance convergence of an LED matrix light source is solved. Compared with the prior art, a projector manufactured with the method has the characteristics of low color temperature, small quantity of infrared rays and ultraviolet rays, no damageable parts such as electrodes, filaments and the like, no light loss caused by a spectroscope, high brightness, long service life and the like.

The ion exchange effect between a cation-containing polymeric material Nafion film modified glassy carbon electrode and cations in ruthenium terpyridine is used to immobilize ruthenium terpyridine to the surface of the electrode and dope the Nafion film with multi-walled carbon nano-tubes and zinc oxide nano-particles. The promotion effect of amido groups on the electrochemiluminescence of ruthenium terpyridine realizes histamine detection. The method using the MWCNTs/ZnO/Nafion compound film modified electrode to immobilize the ruthenium terpyridine has the advantages of reduction of the use amount of the ruthenium terpyridine, reduction of the cost of experiments, reduction of harms to environment and improvement of the stability and the repeated utilization rate of the experiments. The electrochemiluminescence sensing method used for histamine detection also has the advantages of wide application range, low detection limit and good stability and repeatability, and can be applied to detection of histamine in a practical sample.

The invention belongs to the technology of processing of artificial stone materials and especially relates to a colorized three-color energy-storage luminescent composite wood-grain stone material and a preparation method of the same. The stone material includes following components, by weight: 4.5-7% of glass sand (which is granules after glass waste materials crushed), 12.5-15.5% of epoxy resin, 0.26-0.65% of a curing agent, 0.3-0.7% of a coupling agent, 4-6% of luminescent stone powder comprising three colors, wherein each color accounts for 1/3 of the total amount, 1.5-2.5% of titanium dioxide and the balance being a wood-grain stone waste material, wherein the granularity distribution of the glass sand is 2-70 meshes and the granularity distribution of the wood-grain stone waste material is 4-325 meshes. The cured moulded stone material is dried at 65-80 DEG C. The stone material is good in night luminescent effect, is high in strength, is colorful, is free or radiation pollution and is low in production cost.

The invention relates to a preparation method of a nanometer light-converting shed plastic film for kiwifruits, wherein the preparation method sequentially comprises: modified master batch preparationand nanometer light-converting shed plastic film synthesis. According to the present invention, the nanometer light-converting shed plastic film prepared by the method has characteristics of good gloss and good uniformity, can inhibit the deliquescence of light-converting agents, has a prolonged service life, and still has a good light-converting effect after use for 9 months, wherein the conversion emission spectrum is maximally close to the absorption spectrum of kiwifruits, such that the sunlight absorption and utilization of kiwifruits is enhanced, the phenomenon of infrared radiation isavoided, and the temperature difference between day and night in the shed is low so as to increase the yield of red-fleshed kiwifruits, wherein the yield is up to 5102 kg/mu, and the yield is increased by 28.13%; and the fruit quality is improved, the soluble sugar content is 14.86%, the titratable acid content reaches 2.89%, and the vitamin C content reaches 2098.52 mg/kg.

The invention discloses a chitosan flexible transparent conductive film based on a silver nanowire conductive network. Through electrostatic layer-by-layer self-assembly of silver nanowires on the surface of a chitosan film, the chitosan flexible transparent conductive film, which has excellent light transmittance performance, conductivity, adherence performance and biodegradability, is obtained.The chitosan flexible transparent conductive film has a huge application value in fields of optoelectronic devices and wearable devices and the like.

The invention discloses a coating for fruit bagging and a preparation method thereof. The coating is composed of the following components in parts by weight: 6-8 parts of guar gum, 10-20 parts of soy isolate protein, 14-18 parts of emulsified wax, 3-5 parts of calcium stearate, 5-15 parts of silicon dioxide, 2-4 parts of tween, 4-6 parts of potassium chloride, 6-8 parts of liquid chlorine dioxide, 6-10 parts of ammonium hydroxide, 1-3 parts of de-foaming agent, 20-40 parts of water-soluble fluoride resin and 20-30 parts of hydrogen peroxide. The invention aims to provide the coating for fruit bagging. The coating is excellent in light transmittance performance, high in waterproof property and nontoxic.

The invention provides a high-transparency cover glaze. The cover glaze is prepared from the following raw materials: potassium feldspar, albite, indium hydroxide and barium phosphate. The cover glaze has excellent light transmission performance and also has excellent mechanical properties.

The invention discloses thermoplastic polyurethane capable of carrying out optical transmission, and a preparation method thereof, wherein the thermoplastic polyurethane is prepared from the followingraw materials by mass: 30-45% of polyisocyanate, 44-63% of polyester polyol and 4-11% of a chain extender. According to the invention, through the synergetic cooperation of various raw materials andthe molecular weight of the used polyester polyol, the particles having a diameter of less than 3000 [mu]m are introduced into TPU in a preferred embodiment, so that the results accidentally show thatthe haze, the yellowness index, the crystallization temperature, the melt volume flow rate and the like of the prepared TPU are all within the range, and the TPU has excellent light transmission capacity, can achieve long-distance light transmission, and can be prepared into light guide materials including light guide fibers or light guide films.

The invention discloses a multifunctional led lamp comprising a lampshade and a mounting plate; the top surface of the lampshade is connected with the mounting plate through screws; one end of the lampshade is connected with an acrylic plate in an embedded manner; a foaming plate is adhered to the top surface of the mounting plate; the outer wall of the lampshade is detachably connected with a dust cover; both ends of the acrylic plate are fixedly connected with supporting plates; the upper surfaces of the supporting plates are detachably connected with mosquito traps; the lower surface of thesupporting plate is connected with an electric push rod through screws; felt cloth is adhered to one end of the electric push rod; and a sealing ring is adhered to one end of the inner wall of the lampshade. According to the multifunctional led lamp in the invention, phototaxis insects such as mosquitoes can be effectively attracted to the inner cavities of the mosquito traps to be killed, the mosquitoes are prevented from entering the inner cavity of the lampshade to affect lighting, and the felt cloth is pushed to be adhered to the surface of the acrylic plate through the electric push rod,so that the dust adsorbed on the surface of the acrylic plate can be cleaned, and the multifunctional led lamp is convenient and practical.

The invention relates to a full-optical-fiber electro-optical modulation system. The full-optical-fiber electro-optical modulation system comprises an ionic liquid, platinum electrodes, wires, a DC stabilized power supply, a double tapered optical fiber and a U-shaped groove, wherein the platinum electrodes are vertically placed at the two sides of the inner wall of the U-shaped groove and are connected with the DC stabilized power supply through the wires; a double tapered optical fiber tapered area is partially placed between the two platinum electrodes in the U-shaped groove; and the U-shaped groove internally contains the ionic liquid. The distributing states of negative ions and positive ions in the ionic liquid can have a certain change along with the strength and direction of an external electric field, thereby changing the transmission characteristic of the ionic liquid; and the spectrum shape of an evanescent wave transmitted on the surface of the tapered optical fiber can change under the effect of the environmental factor, so that the spectrum shape of an optical signal transmitted by the tapered optical fiber changes. According to the full-optical-fiber electro-opticalmodulation system, the external electric field is controlled by changing the strength and direction of voltage applied to the platinum electrodes in the system, and the modulation characteristic of optical switch, electro-optical modulation and the like can be obtained.

The invention relates to the technical field of metallurgical detection and particularly relates to a device for detecting and analyzing steelmaking high-temperature liquid-state furnace slag components on line. The device comprises a rapid furnace slag component analyzer and an optical probe, wherein the rapid furnace slag component analyzer comprises a laser device, a controller, a wave spectrometer and a probe guide tube which are connected with each other through transmission of electrical signals; the optical probe comprises a hollow circular tube and a glass window; the glass window is fixed at one end of the hollow circular tube; the other end of the hollow circular tube is in an opening state. According to the device for detecting and analyzing the steelmaking high-temperature liquid-state furnace slag components on line, an inserted type high-temperature-resistant probe is used and is in direct contact with the furnace slag, so that the furnace slag components can be rapidly analyzed on line; the processes of sampling, cooling and preparing samples are not needed; the high-temperature furnace slag components are directly analyzed; the sampling analysis period is shortened;the requirements on real-time feedback of the furnace slag components and on-line adjustment of the furnace slag components can be met; the analysis time is less than 20 seconds.

The invention discloses a vertical structure LED chip with double-sided transparent electrodes and a preparation method of the vertical structure LED chip. The LED chip structurally sequentially comprises a supporting conductive substrate, a bonding metal layer, a protective metal layer, a reflecting metal layer, a p-surface transparent electrode, an epitaxial layer, a passivation insulating layerand an n-surface transparent electrode from bottom to top; the passivation insulating layer is arranged on the periphery of the epitaxial layer; a first groove is formed by the passivation insulatinglayer and the top of the epitaxial layer; a protrusion matched with the first groove is arranged at the bottom of the n-surface transparent electrode; because a transparent electrode is adopted as the p-surface electrode, stable ohmic contact can be realized, product voltage is stable, light transmission performance is good, and the problem of the unstable voltage of thae traditional vertical structure LED chip is solved; a transparent electrode is adopted as the n-surface electrode, and therefore, current expansion can be greatly improved, the problems of light absorption and light blockingof the n-surface electrode are avoided, brightness is further improved, heating under high current is reduced, a lighting effect is improved, and the problem of the poor current expansion of the traditional vertical structure LED chip is solved.

The invention provides a novel glass door, simple in structure, high in light permeability and higher in quality. The novel glass door comprises a body; two sides of the body are provided with anti-reflection films, respectively; a transparent plastic film is provided outside each anti-reflection film; an electric heating film is provided between each anti-reflection film and the corresponding transparent plastic film. The transparent plastic films and the anti-reflection films are added to the outside of the body, the anti-reflection films are good in light permeability, the transparent plastic films are good in elasticity, breakage of the door is avoided, and strength thereof is improved; the electric heating films added between the anti-reflection films and the transparent plastic films help vaporize fog on the transparent plastic films by heat transfer, allowing convenience for visualization.

The invention discloses an enhanced optical fiber cloth liner for an artificial transparent stone and a preparation method of the enhanced optical fiber cloth liner. The enhanced optical fiber cloth liner comprises a radial optical fiber sheet on which more than two weft glass fiber threads which are inserted into the radial fiber sheet and are used for sewing the radical optical fiber sheet integrally are arranged; the radial optical fiber sheet is formed by arranging more than two radial glass optical fiber beams closely and continuously, the glass optical fiber beams are formed by arranging more than two radial glass optical fiber monofilaments closely and continuously, the diameter of each glass optical fiber monofilament is 30-70 [mu]m and the surface of each glass optical fiber monofilament is provided with a chemical enhancing layer; at least one end of the radial optical fiber sheet is provided with a shaping section which is not more than 50mm long. When the optical fiber cloth liner provided by the invention is used for preparing the transparent stone, the optical fiber cloth liner can be used for directly cutting, therefore, the optical fiber cloth liner is convenient for practical operation, good in light transmittance performance, natural and continuous in light emitting modeling and good in randomness, and the compression resistance and impact strength of the stone can be improved.

The invention discloses a patterned flexible sensor prepared by femtosecond and nanosecond laser and a preparation method thereof. The preparation method comprises the following steps: 1) mixing a polydimethylsiloxane (PDMS) monomer and a curing agent, and spin-coating to prepare a transparent and flexible PDMS substrate; (2) irradiating the PDMS substrate by using oxygen plasma (Plasma); 3) spin-coating silver nanowire slurry on the substrate; 4) applying pressure to the silver nanowire slurry; 5) scanning the silver nanowire slurry on the PDMS substrate by femtosecond laser; (6) nanosecond laser melting is conducted, redundant silver nanowires are beaten away, and a pattern is drawn; and 7) spin-coating PDMS, and packaging the patterned silver nanowire slurry. The method provided by the invention is high in preparation speed and high in precision. The prepared sensor is soft in texture and has excellent light transmission performance and tensile performance.