173results about How to "High refractive index" patented technology

The invention relates to a glass bead, in particular to a high-refractive-index large-particle-size glass bead for road marking and a spheroidizing forming preparation method of the high-refractive-index large-particle-size glass bead. The material comprises the following components in parts by weight: 30 to 40 parts of titanium dioxide, 30 to 40 parts of silicon dioxide, 10 to 15 parts of barium nitrate, 10 to 15 parts of zirconium nitrate, 5 to 7 parts of zinc oxide, 3 to 5 parts of boric acid, 3 to 5 parts of calcium fluoride, 5 to 110 parts of Nb2O5 and 5 to 15 parts of a La2O3-ZrO2 compound. According to the invention, calcination is carried out at 900 DEG C for 12 hours, which is helpful for improving the thermal stability and mechanical strength of the glass beads, so that the glass beads can be used for a long time in a severe outdoor environment and are not easy to damage. And at the high temperature of 1300 DEG C and the spraying speed of 75 m / s, through precise intersection of the two nozzles in the combustion chamber, precise control over the melting and forming process of the glass beads is ensured, and therefore the high-quality high-refractive-index glass beads are obtained. The Nb2O5 and La2O3-ZrO2 compound is added, so that the refractive index of the glass beads is improved, and a relatively high yield is maintained.

The invention provides a fluorene-containing amine compound and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials. The fluorene-containing amine compound disclosed by the invention has relatively high hole transport capacity and proper HOMO energy level, and when the fluorene-containing amine compound is applied to a hole transport layer or an electron blocking layer of an organic electroluminescent device, the luminous efficiency of the device is effectively improved, and the service life of the device is effectively prolonged; the fluorene-containing amine compound provided by the invention has a relatively high refractive index, and when the fluorene-containing amine compound is applied to a covering layer of the organic electroluminescent device, the luminous efficiency is effectively improved, so that the luminous efficiency of the organic electroluminescent device is further improved, and the service life of the organic electroluminescent device is further prolonged. In conclusion, the fluorene-containing amine compound provided by the invention can be widely applied to the fields of panel display, illumination light sources and the like, and has a good application prospect.

The invention relates to the technical field of liquid silicone rubber, in particular to high-refractive-index low-haze addition type liquid silicone rubber and a preparation method thereof, and the high-refractive-index low-haze addition type liquid silicone rubber is prepared from vinyl silicone oil, a catalyst, an inhibitor, a cross-linking agent, hydrophobic white carbon black, a white carbon black surface treating agent and the like. According to the method, by regulating and controlling the surface state of the white carbon black and the refractive index of the silicone oil, the addition type liquid silicone rubber with high refractive index, high light transmittance and low haze at the same time is realized, and the addition type liquid silicone rubber is good in mechanical property and fluidity, can adapt to continuous extrusion production, and is suitable for large-scale production. After vulcanization, the Shore A hardness is 50-53, the light transmittance is 94% or above, the haze is lower than 3%, the refractive index reaches 1.54 or above, and the polyurethane resin can be applied to the fields of optical devices, LED packaging and the like.

The invention provides a preparation method of an antireflection film of a semiconductor laser, and belongs to the technical field of semiconductor lasers. The problem that a film layer falls off in an existing anti-reflection film preparation process is solved. Comprising the following steps: pretreatment cleaning before bar coating: vacuumizing a chamber of reaction magnetic control equipment to a vacuum degree of 10 <-6 > Torr grade, turning on a heating lamp to heat the chamber to a set temperature, starting an ion source, introducing a proper amount of plasma gas into the ion source, introducing a proper amount of plasma gas into the chamber to enable the vacuum degree of the chamber to reach a 10 <-3 > Torr grade, and then cleaning; in the process steps of plating the silicon nitride thin film and the aluminum oxide thin film, a chamber is kept at a certain temperature, and then the vacuum degree of the chamber is reduced during film plating; and the performance of the laser is stably improved while the production yield of the semiconductor laser is improved.

The invention discloses a modified polyurethane polymer optical material as well as a preparation method and application thereof. The modified polyurethane composition optical material is composed of multi-mercapto mercaptan, isocyanate, a sulfur-containing epoxy compound monomer a and an acrylate quaternary crosslinking curing system, the modified polyurethane composition optical material prepared according to the method has the advantages of high impact resistance and high hardness while maintaining high refractive index optical performance, the visible light transmittance is larger than or equal to 89%, the refractive index is larger than or equal to 1.62, the surface hardness is larger than or equal to 3H, the material is suitable for manufacturing optical components with high requirements for optical and mechanical properties, such as prisms, lenses and protective screens, and a better solution is provided for application of high-end optical components. # imgabs0 #

The invention discloses an optical monomer and a preparation method thereof, a composition, a resin material and a preparation method and application thereof. The optical monomer provided by the invention mainly comprises a hydroquinone group, a benzotriazole group and a long-chain sulfur structure, so that the prepared resin material has high refractive index and good ultraviolet resistance and flexibility. Wherein the benzotriazole group has a very good anti-ultraviolet effect. In addition, the optical monomer contains a long-chain sulfur structure and can rotate freely, so that the flexibility of the polymer is enhanced. Moreover, hydroxyl in the optical monomer can form a hydrogen bond with a base material, the adhesive force is improved, the optical monomer is rich in sulfur elements and benzene ring structures, and due to the high molar refractive index of the optical monomer, the optical monomer has a very high refractive index.

The invention discloses an LED (light-emitting diode) packaging adhesive material and a preparation method thereof, and the LED packaging adhesive material comprises the following components in parts by weight: 100 parts of silicone oil, 1-3 parts of catalyst and 0.1-1 part of inhibitor, the silicone oil contains titanium-zirconium-containing vinyl silicone oil, hydrogen-containing silicone oil and vinyl silicone oil in a weight ratio of 1: (5-12): (2-10). According to the LED packaging adhesive material synthesized by selecting the titanium-zirconium-containing vinyl silicone oil, the hydrogen-containing silicone oil and the vinyl silicone oil with specific types and dosages, phenyl, titanium, zirconium and alkyl in the LED packaging adhesive material are high in uniform distribution degree, a formed three-dimensional network structure is compact and stable, the LED packaging adhesive material has relatively high crosslinking density, and the service life of the LED packaging adhesive material is prolonged. And the high hardness of the LED packaging adhesive material can be improved. In addition, the LED packaging adhesive material provided by the invention has high refractive index and high light transmittance.

The invention relates to the technical field of optical glass manufacturing, in particular to high-refractive-index glass as well as a preparation method and application thereof. The transition metal is less than 4 ppm by mass, and the transition metal comprises one or more of Fe, Cr, Ni, Cu, Mn, Co and V; the oxide is prepared from the following components in mole percent based on the oxide: 17 mol% to 49 mol% of Bi2O3, 2.7 mol% to 15.7 mol% of Nb2O5, 8.5 mol% to 39 mol% of TeO2, 2 mol% to 19.5 mol% of P2O5, 11.3 mol% to 41 mol% of B2O3, 0 mol% to 1 mol% of TiO2, 0 mol% to 1 mol% of Ta2O5, 0 mol% to 1 mol% of WO3 and 0.5 mol% to 16.5 mol% of ZnO, and Bi2O3 / (TeO2 + TiO2 + WO3 + Nb2O5 + Bi2O3) * 100 is more than or equal to 30 and less than or equal to 75. Tests show that when the thickness of the glass is 10 mm, the refractive index of the glass is 2.09-2.35, and the transmittance of the glass with the wavelength lambda 70 smaller than 450 nm is 82.4%-96.8%. The problems that in the prior art, high-refractive-index glass is low in refractive index and light transmittance and low in performance and cost ratio, and the increasingly-developed visual experience and development requirements of head-mounted displays cannot be met are solved.

The invention relates to the technical field of optical resin, and particularly discloses a synthesis process of polysiloxane resin with a low refractive index. The synthesis process comprises the following steps: taking amino double-terminated polydimethylsiloxane and isocyanate as main raw materials, feeding the amino double-terminated polydimethylsiloxane and the isocyanate according to a molar ratio of 1: (1-2), and reacting in an inert gas atmosphere to obtain the low-refractive-index polysiloxane resin. A target product can be obtained through direct reaction in a solvent-free state, the refractive index of the target product is controlled to be 1.41-1.44, the elongation at break can reach 200-400%, and the target product has excellent elasticity; the target product can be directly subjected to subsequent melt extrusion, is more environment-friendly compared with a solvent method, and is more suitable for manufacturing an elastomer multilayer optical film.

The invention discloses optical glass, a prefabricated member thereof, an optical element and an optical instrument, and relates to the technical field of optical glass. The optical glass comprises the following components in percentage by weight: 2 to 15.2 percent of SiO2; 8 to 22 percent of B2O3; la2O3: 40% to 60%; 3 to 18 percent of Y2O3; zrO2: 1%-15%; 2 to 15 percent of Nb2O5; 0 to 9 percent of Gd2O3; znO: 0 to 10%; 0 to 10 percent of Ta2O5; 0 to 6 percent of TiO2; 0 to 10% of RO; 0 to 8% of Rn2O; 0 to 8 percent of WO3; 0 to 5 percent of Al2O3; 0 to 8 percent of Yb2O3; 0 to 5 percent of GeO2; 0-1% of a clarifying agent; (Gd2O3 + ZnO) / Y2O3 is 2.0 or less; the thermal expansion coefficient alpha-30 / 70 DEG C of the optical glass is below 85 * 10 <-7 > / K, and the abrasion degree FA is 75-120. The high-refractive-index optical glass obtained by the invention has relatively low thermal expansion coefficient and excellent abrasion degree.

The invention relates to the technical field of waterproof coiled materials, and discloses an infrared heat reflection type thermoplastic polyolefin waterproof coiled material and a preparation method thereof.The infrared heat reflection type thermoplastic polyolefin waterproof coiled material is prepared from hexachlorocyclotriphosphazene, aminopropyltriethoxysilane, formaldehyde and the like through a series of reactions to obtain hexachlorocyclotriphosphazene silane; the preparation method comprises the following steps: carrying out condensation on hexachlorocyclotriphosphazene, nano far-infrared ceramic powder and rutile titanium dioxide to obtain modified nano far-infrared ceramic powder and modified rutile titanium dioxide, and carrying out reaction on an intermediate product 1 and beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl chloride to obtain the hexachlorocyclotriphosphazene hindered phenol. Finally, polyolefin elastomer, functional titanium dioxide IR-1000, modified nano far-infrared ceramic powder and the like are evenly mixed, melted, plasticized, cooled and shaped, and the infrared heat reflection type thermoplastic polyolefin waterproof coiled material is obtained, and tests prove that the waterproof coiled material prepared through the method has excellent flame retardance, heat aging resistance and mechanical property.

The invention discloses inner-layer quartz sand for a long-service-life single-crystal crucible and a preparation method and application of the inner-layer quartz sand, and one or two of 1-15 ppm of bismuth oxide and antimony trioxide are uniformly doped into the quartz sand through a high-temperature acid doping process. As the antimony oxide and the bismuth oxide are doped in the quartz sand, the viscosity of quartz melt can be reduced, overflow of a large amount of gas generated in the quartz sand melting process is facilitated, and the content of microbubbles in the inner layer of the quartz crucible is reduced, so that the density and the temperature resistance of the inner layer of the quartz crucible are improved, the defects caused by bubbles are reduced, and the service life of the crucible is prolonged.

The present invention provides an organic compound, a mixture, a composition, a light extraction layer material and an organic electronic device. The structure of the organic compound is shown in the general formula (1), and the organic compound can be used as a light extraction layer material in an organic electroluminescent device to improve the light extraction efficiency of the device.

The present application belongs to the field of advanced coating and preparation, and particularly relates to a high-transparent and scratch-resistant multifunctional antistatic coating and a preparation method thereof. The present application provides a high-transparent and scratch-resistant antistatic coating, raw materials of the antistatic coating comprising fluorion-containing silsesquioxane monomer, functional monomer and catalyst; wherein the functional monomer is a crosslinking agent or an anti-crystallization agent. The coating obtained by the present application has a light transmittance of >98% (550 nm); a surface pencil hardness of greater than 9H, no scratches after more than 1000 times of steel wool rubbing; a surface resistivity of about 10 8 ~10 9 Ω / sq, and a fast electrostatic discharge rate.

The application relates to a benzocarbazole capping layer material and a preparation method, an organic electroluminescent device and a display device, and belongs to the technical field of organic luminescent materials. The structural general formula of the capping layer material is general formula 1: The organic EL element of the application uses an organic EL element material with high refractive index, good thin film stability and excellent durability as the material of the cap layer, so that the light extraction efficiency is greatly improved compared with the known organic EL element, and the technical effects of high efficiency and long service life are achieved.

The invention relates to the field of optical elements, and in particular to an optical filter coated with an ultra-low anti-reflection film and a process thereof, which are used to solve the problem that the anti-reflection film on the existing optical filter coated with the ultra-low anti-reflection film has an unsatisfactory anti-reflection effect and is prone to dust accumulation, thereby causing an adverse effect on the light transmittance of the optical filter; in the process, silica sol, aluminum sol, and carboxylated carbon nanotubes are used as main raw materials, so that the three are reasonably compounded, and modified with a uniform dispersant, and finally an ultra-low anti-reflection impregnation liquid is used to form an ultra-low anti-reflection film on the surface of the optical filter; through the optical filter coated with the ultra-low anti-reflection film and the process thereof of the invention, the ultra-low reflection effect of the filter surface can be achieved, and the light transmittance and imaging quality of the filter are effectively improved. At the same time, the process of the invention is simple, the cost is low, and it has a wide application prospect.

This invention provides a resin that combines high refractive index, high heat resistance, and low birefringence. The cyclic olefin copolymer hydride of this invention is formed by hydrogenating a cyclic olefin copolymer, wherein the cyclic olefin copolymer comprises structural units from 1-naphthylnorbornene and structural units from 2-naphthylnorbornene, and the average internal bulk ratio of 1-naphthylnorbornene to 2-naphthylnorbornene is 50 mol% or more. The cyclic olefin copolymer hydride of this invention is preferably used as a material for optical components such as optical lenses.

The application provides a triarylamine derivative and an organic electroluminescent device thereof, and particularly relates to the technical field of organic electroluminescence. In order to solve the problem of low device performance caused by the covering layer material in the prior art, the application provides a triarylamine derivative and an organic electroluminescent device thereof, which is applied to an organic electroluminescent device as a covering layer material to effectively improve the luminous efficiency and service life of the device. Since the triarylamine derivative has strong rigidity, a suitable glass transition temperature (Tg), good thermal stability and a high refractive index in the molecule, the coupling efficiency of light in the device is increased, the light extraction efficiency is improved, the generation of Joule heat is reduced, and the service performance of the device is improved.

A copolymerized polycarbonate resin containing a repeating unit (X) represented by formula (1) and a repeating unit (Y) represented by formula (2), the copolymerized polycarbonate resin containing 66-83 mass% of the repeating unit (X) represented by formula (1) in 100 mass% of the copolymerized polycarbonate resin. (In formula (1), R1 and R2 each independently represent a hydrogen atom or a methyl group) (in formula (2), R3 to R6 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or a group having 6 to 12 carbon atoms and containing an aryl group, and W represents at least one selected from the group consisting of a single bond, an oxygen atom, a sulfur atom, and a divalent organic group).

The application provides a high-refraction cycloolefin copolymer and a preparation method thereof, and has a structure of formula I. The cycloolefin copolymer can obtain a cycloolefin copolymer resin with high thermal stability due to high steric hindrance of the cycloolefin monomer. The refractive index of the cycloolefin copolymer resin is greatly improved due to R3 and R4 on the cycloolefin monomer, and is first broken through to above 1.70, while maintaining high light transmittance of 91.0-96.0%, extremely low water absorption (<0.01%), and a glass transition temperature of 219 DEG C. The application prepares the cycloolefin copolymer resin with high activity, adjustable molecular weight and glass transition temperature by adjusting the reaction conditions. The copolymer resin has high refractive index, high light transmittance, heat resistance, low birefringence and moisture absorption, excellent fluidity, moldability and dimensional stability.

A light guide member of a waveguide structure of an image display device for guiding image light incident from a display and emitting the image light toward an eye of a user, characterized by being formed of a single crystal composed of lithium niobate. According to the present invention, a light guide member having a high refractive index and a high internal transmittance can be provided.

This invention discloses a dry ice crystal particle, its preparation method, and a ceramic tile, relating to the field of ceramic tile technology. The dry ice crystal particle is prepared from a first flashing frit, a second flashing frit, and a matte frit. Since the dry ice crystal particle is composed of three frits with different refractive indices and firing temperatures, different phases can be formed due to the different firing temperatures of each frit. The differences in light transmittance and refractive index between these phases are then utilized to create a better flashing effect. Simultaneously, the matte glaze serves as a backdrop, further enhancing the display of the flashing effect.

The present invention provides, as a polymer having both a high refractive index and excellent lens moldability, a polymer containing a structural unit represented by formula (1) (excluding a structural unit represented by formula (1a)). ). (In the formula, X each independently represents a methyl group, an ethyl group, a methoxy group, an ethyoxyl group or a hydroxyl group, and n represents an integer of 1-6. > # imgabs0 #

The present invention discloses a sulfur-containing high-refractive photocurable monomer having a chemical structure of the following formula (I) or formula (II): Formula (I) Formula (II) X1 represents a polymerizable group, and X2 is a group with high refractive properties. The structure of the present invention contains a five-membered heterocyclic ring with two sulfur atoms. Compared with the reported thiophenes, thiadiazoles and cyclic trithiocarbonates, the structure has the characteristics of novel structure, colorlessness and high refractive index.

The present invention provides a low-radiation anti-fouling coated glass and a preparation method thereof, belonging to the technical field of glass preparation; the preparation process thereof comprises the following steps: preparation of a fluorine-tantalum doped zinc oxide film precursor solution; synthesis of a chain transfer agent; preparation of a modified fluorine-containing copolymer; preparation of a functional film mixed solution; cleaning of a glass substrate; and low-radiation anti-fouling coated glass. The present invention adopts a sandwich structure coating of a zinc oxide film doped with fluorine and tantalum, a silver film, and a zinc oxide film doped with fluorine and tantalum. In the sandwich structure, the silver film is located in the middle layer, and the zinc oxide films doped with fluorine and tantalum are located on both sides. The sandwich structure forms a multilayer film system, which greatly improves the reflectivity of the glass to infrared radiation and achieves a better low-radiation effect. Moreover, the functional film is coated to further achieve a low-radiation effect and increase the anti-fouling ability.

The application discloses a 750-850nm waveband photonic crystal surface emitting laser and a preparation method, and belongs to the field of semiconductor lasers. The application is divided into surface etching and buried photonic crystal layer structures, uses n-GaAs as a substrate, combines surface etching or buried photonic crystal structures, uses amorphous silicon, titanium oxide, GaP or AlGaAs as main materials of a resonant cavity, utilizes large-area in-plane resonance and high coupling with a quantum well active layer, realizes low-loss resonance and optical gain, and realizes a 750-850nm waveband semiconductor laser with high light beam quality, high power and surface emission.

The present invention belongs to the field of semiconductor technology, and specifically relates to an organic compound with 1,3,5-triazine-2,4,6-trione as the core and its application. The organic compound provided by the present invention contains rigid 1,3,5-triazine-2,4,6-trione and benzo five-membered heterocyclic group in spatial structure, and the three substituent groups on the 1,3,5-triazine-2,4,6-trione parent nucleus are cross-spaced to avoid free rotation of the groups, so that the organic compound of the present invention has a higher density and a higher refractive index. The organic compound of the present invention can meet the requirements of the light extraction layer for the thermal stability, film crystallinity and light transmission of the material, and the rigid 1,3,5-triazine-2,4,6-trione and benzo five-membered heterocyclic group improve the thermal stability of the material; high T g Temperature ensures that the material does not crystallize in the thin film state. The compound of the present invention has good application effect and industrialization prospect in OLED light-emitting devices. #imgabs0#

The invention provides an arylamine derivative and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials. The invention aims to solve the technical problems of low luminous efficiency and short service life of an organic electroluminescent device caused by low mobility of a current hole transport material and low refractive index of a covering layer material. The compound provided by the invention has high hole mobility and refractive index, good thermal stability and good film-forming property, and can significantly improve the luminous efficiency and service life of a device, optimize the light extraction effect and block impurities. The organic light-emitting device can be widely applied to the fields of panel display, illumination light sources, flexible OLEDs, electronic paper, organic solar cells, organic photoreceptors or organic thin film transistors, indication boards, signal lamps and the like.

The invention discloses an optical monomer and a preparation method thereof, a resin mixture and application, the molecular structure of the optical monomer takes an aromatic skeleton or an aliphatic skeleton as a center and extends outwards to form a branched chain with a hexa-mercapto functional group, the aromatic skeleton has certain rigidity, the aliphatic skeleton has flexibility, and the molecular structure is uniform. Therefore, the optical monomer has ultrahigh refractive index, high light transmittance and good heat resistance.

Disclosed an optical laminate in which at least two or more optical function layers with visible light transmittance are laminated, wherein the optical function layers include a first function layer that includes at least cerium oxide, has a refractive index in a range of 1.8 or more and 2.6 or less at a wavelength of 550 nm, and has a film thickness in a range of 60 nm or more and 130 nm or less, and a second function layer that is formed in contact with an upper surface of the first function layer, has a refractive index in a range of 1.4 or more and 1.6 or less at a wavelength of 550 nm, and has a film thickness in a range of 80 nm or more and 100 nm or less.