94results about How to "Improve refraction effect" patented technology

The invention relates to a wide-angle LED light source, comprising a base, an LED light-emitting chip and a lens. The LED light-emitting chip and the lens have the same central axis. The lens comprises a lower lens and an upper lens. The upper surface of the lower lens is a plane, and the lower surface thereof is hollowly formed to be a first cavity with a concave spherical surface along the central axis. The external surface of the upper lens is a curved surface, the included angle between the target line of each point on the curved surface and the incident ray of the point is smaller than or equal to 90 degrees. The middle of the upper lens is hollowly formed to be a semi-ellipsoidal second cavity along the central axis. A first ray diffusing surface is formed at the joint of the lower lens and the second cavity. The inner surface of the upper lens is a second ray diffusing surface, and the external surface of the upper lens is a third ray diffusing surface. The lens of the wide-angle LED light source provided in the invention has three ray diffusing surfaces so as to greatly improve refraction effect and light utilisation rate.

An organic-inorganic hybrid composition comprising inorganic fine particles having a refractive index of from 1.90 to 3.00, and a thermoplastic resin having a functional group capable of forming a chemical bond with the inorganic fine particles at one or more polymer chain terminals and having a number average molecular weight of from 1,000 to 500,000. The composition has high refraction properties and excellent transparency.

A simulated balloon display is designed to be attached to a real estate “tent sign” or used in conjunction with any other promotional presentation. A silhouette cluster made of thin translucent colored plastic mimics the appearance of free-floating balloons while avoiding the handling problems and expense involved with helium inflated balloons.

The invention relates to an LED light-emitting module processing method which comprises the steps of: respectively welding at least one LED and two or more conductive terminals on a circuit substrate of a light source module to form electrical connection, integrally forming an accommodating cup part outside the circuit substrate in a covering and ejecting mode and respectively forming openings for exposing the LEDs and the conductive terminals in the upper side and the lower side of the accommodating cup part; and carrying out secondary package on the surfaces of the tops of the accommodating cup part and the LEDs in a covering and ejecting mode to form a lens with preset shape, wherein the lens can be directly secondarily packaged and formed on the accommodating cup part and the LEDs to ensure that the inside of the lens does not have clearance so that the phenomena of refraction and light attenuation because lights passes through different media can be decreased for improving the intensity of illumination of the LEDs through projecting bright lights towards the lens and then being capable of ensuring that the light source module generates a planar light source uniformly and outwards emitting lights.

The invention relates to the technical field of display and discloses an optical film making method, an optical device, a display substrate and a display device. The display device comprises a light emitter and an optical film, wherein the optical film is used for refracting light emitted by the light emitter to the light outlet side, improving light output efficiency, optical spectrum stability and the display brightness of a product and reducing the power consumption. An uneven structure is formed on the surface of the optical film through multiple times of curing and a micro-molding process, the light refracting effect is improved, and micro-stress, micro-cracks, micro-peaks and other undesirable phenomena produced by the micro-molding process can be eliminated.

A problem to be solved by the present invention is to provide an aqueous urethane resin composition capable of forming a film, a coating film, or the like which has high refractive performance at a level usable for, for example, optical application and which satisfy excellent adhesion to various substrates and excellent blocking resistance. The present invention relates to an aqueous urethane resin composition including a urethane resin (A) and an aqueous medium (B), wherein the urethane resin (A) is produced by reacting a polyether-ester polyol (a1-1) with a polyisocyanate (a2), the polyether-ester polyol (a1-1) being produced by reacting an alkylene oxide adduct of a bisphenol compound with an aromatic polycarboxylic acid.

A manufacture method of a light guide plate comprises the following steps of providing a substrate; forming first order dots, wherein the first order dots are formed by utilizing different positions of a laser on the substrate; forming at least one second order dot so as to form a mold insert, wherein the second order dots are formed in the first order dots by utilizing the laser, and the radius of each second order dot is smaller than that of each first order dot; and utilizing the mold insert to form the light guide plate, wherein the power of the laser forming the second order dots is 55%-85% of the power of the laser forming the first order dots. The dots can be manufactured to be two-order or multiple-order dots, depend on a processing power range of the laser, and the range is larger, the more formed dot orders are. The light guide plate manufactured by means of the manufacture method has high outgoing light brightness and good outgoing light uniformity.

The invention relates to the technical field of LEDs, in particular to a water-based microbead light diffusion coating. The coating is prepared from 20-30 parts of water-based polyacrylic acid resin, 15-20 parts of high temperature resistance organic silicon resin, 5-15 parts of a light diffusion agent, 3-7 parts of an emulsifying agent, 1-1.5 parts of a defoaming agent, 2-7 parts of inorganic pigment, 3-5 parts of a thickening agent, 2-4 parts of a dispersing agent, 1-5 parts of a diffusion agent and 5-15 parts of a mixed solvent. According to the water-based microbead light diffusion coating, the problems of LED lamp glare, light pollution and the like are solved, the light source is uniform, soft and full, the light permeability and light scattering performance are good, the cooling effect is good, and the service life is long.

The invention provides a liquid crystal lens, a manufacturing method of the liquid crystal lens, and a display device, and belongs to the technical field of display. The liquid crystal lens comprises a first substrate, a second substrate, a liquid crystal layer, a first transparent electrode layer, a first liquid crystal alignment layer, a second transparent electrode layer and a second liquid crystal alignment layer, wherein the liquid crystal layer is located between the first substrate and the second substrate, the first transparent electrode layer and the first liquid crystal alignment layer are located on the first substrate and are close to one side of the liquid crystal layer, and the second transparent electrode layer and the second liquid crystal alignment layer are located at the portion, close to one side of the liquid crystal layer, of the second substrate. The liquid crystal lens further comprises a flat layer arranged between the first transparent electrode layer and the first liquid crystal alignment layer. According to the liquid crystal lens, the flat layer is formed between the first transparent electrode layer and the first liquid crystal alignment layer, and the first liquid crystal alignment layer moves the position with the weaker lateral electric field, so that liquid crystal dislocation is reduced, and the refraction effect of the liquid crystal lens is improved.

A light guide plate consists of a base plate with a surface set with multiple ripple lattice point for raising optical effect and light evenness of light guide plate. Its preparing method includes shining a laser on different position of base plate to form a ripple lattice point at each position for preparing a model and utilizing said model to form a light guide plate.

The invention discloses anti-suction type station air circulation equipment designed in accordance with living habits of flesh flies. The anti-suction type station air circulation equipment structurally comprises a device body, a control panel, an air exhaust pipeline, a brushing and cleaning mechanism, a filtering net, a flesh fly detecting and repelling mechanism, a flesh fly collecting and trapping mechanism, and a cushion plate. The anti-suction type station air circulation equipment disclosed by the invention has the beneficial effects that by arranging the brushing and cleaning mechanism, a clean cotton strip is mutually matched with a flesh fly scraping and puncturing mechanism, so that the flesh flies on the filtering net can be scraped off and punctured, and the activity ability is lost; the clean cotton strip maintains the cleanliness of the filtering net and the whole equipment so as to avoid attracting more flesh flies; by arranging the flesh fly detecting and repelling mechanism, a physical repelling mechanism is mutually matched with a strong-light illumination lamp to emit out shiny and bright reflective light, so that sight lines of the flesh flies are disturbed, and the flesh flies are panic and automatically fly away from the equipment; and by arranging the flesh fly collecting and trapping mechanism, a flesh fly blocking groove is mutually matched with a flesh fly collecting and killing mechanism, so that the flesh flies can be blocked, and the flesh flies losing the activity ability are uniformly scattered onto a flesh fly sticking plate.

The invention discloses a decoration light guide method, which comprises the following steps of: 1, arranging a plate body, and distributing light guide salient points on the incident surface of the plate body; 2, forming a light guide unit by every 7 adjacent light guide salient points; 3, connecting a plurality of adjacent light guide units in turn, and arranging geometric center points of the light guide units along a continuous cellular structure trajectory in turn; and 4, making the upper parts of the light guide salient points face a light source. The invention also discloses a light guide plate and a lamp for implementing the method. The light guide salient points are scientifically designed and distributed to form a cellular structure, and form the plurality of light guide units with reasonable structures, so dark areas or bright bands can be reduced to generate more uniform scattering plane light source with wider illuminating angle, and patterns with decorative effect can be shown in the plane light source, such as preset light-shaped or graphic glow effect; besides, the light is soft and beautiful and can better exaggerate the atmosphere, so the invention has strong applicability and meets the requirements of various occasions.

The invention discloses a white PP (polypropylene) alloy with high shading property and a preparation method thereof. The white PP alloy with high shading property is prepared by mixing and performingextrusion pelletization on the following components in parts by weight: 55 to 68 parts of polypropylene resin, 22 to 30 parts of shading filler, 10 to 15 parts of white toner, 0.2 to 0.5 part of antioxidant, 0.2 to 0.5 part of lubricating agent and 0.2 to 0.4 part of light stabilizer. The preparation process is simple and convenient to operate; and the prepared PP alloy has relatively good shading effect and the light-transmitting rate is only 0.1 percent when a plate is 0.5 mm. Meanwhile, a product provided by the invention has high mechanical property and processability, and is particularlysuitable for application of LED light shields, instrument light shields, shading decorative products, light barriers and the like.

Disclosed is an LED chip bonding adhesive, containing transparent optical silica gel at hardness higher or equal to 35Shore D and viscosity coefficient higher or equal to 1.5, AL2O3 which is 10-20% of the weight of the silica gel, and powder and sedimentation retardant which are 2-10%of the weight of the silica gel. By adding nano inorganic particle powder into SILICONE, thermal conductivity and bonding strength of the silicone resin are increased, making the silicone resin have enough bonding strength and thermal conductivity after being solidified; meanwhile, the optical transmission of the LED chip is greatly improved; the LED chip bonding adhesive can make the LED higher in brightness and lower in cost; therefore, the LED chip bonding adhesive is the best substitute material for bonding the chip of a double-electrode LED.

The invention relates to a light-cured 3D printing metal-ceramic composite material part and a preparation method thereof. The preparation method comprises the following steps that after metal powder subjected to surface activation treatment and ceramic powder subjected to surface activation treatment are mixed, a surface curing agent and a surface polymerization initiator are added into the mixture, and a coating step is carried out; a product obtained in the coating step is subjected to aftertreatment, and a core-shell material with the metal powder as a core and a ceramic coating layer as a shell is obtained; a 3D printing thick solution material is prepared from light-cured resin, a photoinitiator, a dispersing agent and the core-shell material; the 3D printing thick solution material is subjected to curing forming through light curing 3D printing equipment, and a light curing 3D printing biscuit is obtained; and the light curing 3D printing biscuit is subjected to degreasing and sintering treatment to obtain the metal-ceramic composite material part. The dispersion and ultraviolet curing characteristics of the metal powder in the photosensitive resin are improved by a simple process, so that the metal-ceramic composite material part with excellent performance is prepared by a light curing 3D printing technology.

The invention discloses a preparation method for a polyhydroxy functional POSS hybrid material. The preparation method is characterized by the following steps: adding reactants, namely, polyethylene glycol derivative PEG (C=CH2) containing unsaturated carbon-carbon double bond at one end, olefinic organism (RHC=CH2), octa-sulfydryl POSS and dissolvent into a reactor; adding radical initiator afterthe added reactants dissolve and uniformly disperse; reacting for 40min-4h under the nitrogen shielding condition at 30-80 DEG C or under an ultraviolet light condition, thereby acquiring the POSS hybrid material; removing the remained radical initiator and unreacted reactants, and drying, thereby acquiring the polyhydroxy functional POSS hybrid material. The preparation method disclosed by the invention has the advantages of simplicity in operation, easily acquired reaction materials, fast reaction and mild reaction condition. The polyhydroxy functional POSS hybrid material prepared according to the invention has the advantages of high biocompatibility, controllable hydrophily and hydrophobicity, controllable form under condensed state, multifunctional reaction group and the like.

The invention relates to a two-dimensional heterojunction photovoltaic cell, and belongs to the field of photovoltaic cells. The two-dimensional heterojunction photovoltaic cell comprises a fixed layer, a two-dimensional material heterojunction and an optical micro cavity, wherein the two-dimensional material heterojunction is arranged in the optical micro cavity, and two ends of the optical microcavity are fixedly connected to the fixed layer. The two-dimensional material heterojunction has the beneficial effects that sunlight irradiates the optical micro cavity, the sunlight in the opticalmicro cavity is reflected by the optical micro cavity, so that the light ray absorption of the two-dimensional material heterojunction is improved, meanwhile, the automatic radiation three-dimensionalangle of the photovoltaic cell is reduced, the automatic radiation loss of the photovoltaic cell is reduced and the efficiency of the photovoltaic cell is improved.

A preparing method includes disposing scan and data wiring on base plate for defining out a picture element region, disposing film transistor (FT) in the picture element region (PER) and connecting it to scan and data wiring, disposing picture element electrode (PEE) in PER corresponding to FT as PEE connected with FT and PEE having a reflection region and penetrating region, covering organic material (OM) on FT and PEE as multiple refractive patterns set on OM layer above penetrating region of PEE.

The invention provides a method for manufacturing meteorite glass. The meteorite glass is manufactured by the following steps: prepared glass meteorite paint is evenly coated on the surface of glass, a PET film which is kneaded into a texture shape is paved on the surface of the glass meteorite paint to ensure that the glass meteorite paint flows with the texture on the PET film, 2 to 3 times of glass brighteners are evenly sprayed on the surface of the meteorite paint which forms the texture shape after natural solidification and drying, then a pearl powder solution is sprayed, the glass meteorite paint is baked for 2 hours in a baking oven with a temperature of between 60 and 70 DEG C, and finally a colorless varnish is sprayed for bottom sealing. The method adopts a process different from that of the prior meteorite glass, particularly the different preparation of the pearl powder solution and the more reasonable control of the baking time, thereby ensuring that the meteorite paint and a glass structure are closer, the brightness of the surface is higher, the refraction effect is good, a meteorite paint layer can not fall off after being placed for a long time, and the brightness and the refraction effect can also not be changed.

The invention relates to the field of coatings, and particularly discloses a heat insulation and heat preservation type reflective coating for a helmet and a preparation method of the heat insulation and heat preservation type reflective coating. The heat insulation and heat preservation type reflective coating for the helmet comprises the following substances in parts by weight: 80-100 parts of matrix emulsion, 6-8 parts of a heat preservation type reflective material, 1-3 parts of polyvinyl alcohol, 3-5 parts of a functional additive, 25-40 parts of water and 1-2 parts of composite filler, the heat preservation type reflective material is hollow glass microsphere particles, the particle size of the hollow glass microsphere particles is 20-150 microns, and the refractive index of the hollow glass microsphere particles is 1.8-2.0. The preparation method comprises the following steps: S1, premixing; s2, performing secondary mixing; and S3, uniformly mixing. The formula of the heat insulation and heat preservation type reflective coating for the helmet is optimized, transmission between external temperature and internal temperature is effectively isolated through the hollow structure of the hollow glass microspheres, and the heat insulation and heat preservation performance of the reflective coating for the helmet is improved.

The invention relates to the technical field of backlight, in particular to a light guide plate, a backlight source module and a display device which are used for solving the problem of non-uniform light rays emitted by the conventional light guide plate due to the distribution design of a light emitting strip in the prior art. The light guide plate in the embodiment of the invention comprises a light guide main body part and a light emitting part positioned on one surface of the light guide main body part, wherein the light emitting part comprises a plurality of optical units arranged in the light guide direction; the lengths of the optical units in the light emitting part in the light guiding direction are unequal; each optical unit corresponding to a position where the light emitting strip is designed is shorter than an optical unit corresponding to a position where the light emitting strip is not designed, and one end surfaces, away from the light incident side of the light guide plate, of the optical units are flush with one another. Therefore, the light guide performances of the optical units at the light incident side of the light guide plate are ensured to be nearly consistent, the uniformity of scattering and reflection is improved, the light guide performances are improved, the light emitting uniformity of the light guide plate is ensured, and the quality of the light guide plate is improved.