41results about How to "Good brightness" patented technology

This disclosure presents systems for x-ray illumination that have an x-ray brightness several orders of magnitude greater than existing x-ray technologies. These may therefore useful for applications such as trace element detection or for micro-focus fluorescence analysis.

The higher brightness is achieved in part by using designs for x-ray targets that comprise a number of microstructures of one or more selected x-ray generating materials fabricated in close thermal contact with a substrate having high thermal conductivity. This allows for bombardment of the targets with higher electron density or higher energy electrons, which leads to greater x-ray flux.

The high brightness/high flux x-ray source may then be coupled to an x-ray optical system, which can collect and focus the high flux x-rays to spots that can be as small as one micron, leading to high flux density.

The invention discloses a display device using quantum dot fluorescent powder, which mainly comprises a luminous unit and a color filter. The luminous unit is provided with a luminous chip and multiple quantum dot fluorescent powder and generates colored light, and the emission spectrum is provided with a first blue light peak wavelength, a first green light peak wavelength, and a first red light peak wavelength. The color filter is arranged on a luminous path of the luminous unit, so that the colored light emitted by the display device penetrates the color filter, and the transmission spectrum is provided with a second blue light peak wavelength, a second green light peak wavelength, and a second red light peak wavelength. The first blue light peak wavelength, the first green light peak wavelength and the first red light peak wavelength are respectively matched with the second blue light peak wavelength, the second green light peak wavelength and the second red light peak wavelength so as to improve the expression of the display device of colors. The display device using the quantum dot fluorescent powder has better color expression and brightness.

The invention discloses an exposure control method for a human face image acquisition system under a near-infrared condition. The method is combined with a human face image information entropy and a human face image motion-blur extent to carry out exposure control, and comprises the following steps: a), using the human face image information entropy as an optimal human face image brightness judgment value, and determining the exposure time for optimal human face brightness through finding the maximum value of the human face image information entropy; b), estimating the human face image motion-blur extent through being combined with cepstrum and the interframe movement distance of a human face; c) adjusting the exposure time according to the human face image motion-blur extent. The exposure control method can be applicable to the human face image acquisition system under the near-infrared condition, can overcome the image degradation phenomenon of the human face image acquisition system due to illumination variation and motion blur effectively, improves the quality of the acquired human face images, and ensures the stability and the accuracy of human face image processing analysis.

The invention discloses an aluminum alloy wheel finishing process, which comprises the steps of: aslant pouring and immersing aluminum alloy blank subjected to thermal processing in a rotating container filled with a grinding material and a grinding agent, forming a medium flow in the front of the wheel through the rotation of the wheel and the relative movement of the container, and carrying out regular and efficient grinding and polishing processing on the front of the wheel and window parts by the medium flow, and finally realizing a mirror polishing effect with extremely excellent surface consistency. By adopting the process, the problems of poor appearance quality in tradition mechanical polishing and low efficiency of a vibration finishing process are overcome, the labor intensity of workers is greatly reduced, the labor environment of the workers is improved, the efficiency is 5-6 times that of the tradition polishing process and vibration finishing, and great cost advantage is achieved.

The invention relates to a super small colored LED display unit of embed serial driven control chip in the field of the production and technology of LED display apply. It is characterized in that the super small print circuit plate is formed by a serial transmitting driven control chip, a red LED light, a blue LED light, a green LED light and a plurality of resistances; the super small print circuit can finish any amount of serial connecting. The embed serial transmitting driven control chip provides the RGB brightness independent adjustment to each image element and connects the LED light and the driving part on the super small print circuit plate.

The invention provides a face light source backlight module and a liquid crystal display panel. The face light source backlight module comprises a Mini LED substrate, a plurality of Mini LED chips arranged on the Mini LED substrate at intervals and a fluorescent film covering the Mini LED chips, wherein a plurality of microstructures are arranged on the surface, away from one side of the Mini LEDchips, of the fluorescent film so that the Mini LED chips can achieve large-angle light emergence, the light mixing uniformity of the face light source backlight module is improved, the purpose of saving an optical film to achieve uniform light mixing is achieved, accordingly the penetration and brightness of a face light source are improved, and meanwhile thinning design of the face light sourcebacklight module is facilitated.

The invention discloses a halogen-free low-smoke flame-retardant cable material, comprising, by weight, 75-90 parts of polyvinyl chloride, 0.5-4 parts of a smoke inhibitor, 5-10 parts of expansible graphite, 3-8 parts of a plasticizer, 16-20 parts of a filling agent, and 1-3 parts of an antioxidant. By modifying the various additives, especially using the expansible graphite, low-smoke property and flame retardance of the material herein are greatly improved, and mechanical strength of the material is partly improved.

The invention discloses a preparation method of water-based floor paint and a construction process of the water-based floor paint and belongs to the field of floor materials. The preparation method of the water-based floor paint comprises the following steps: adding 10-30 parts of deionized water, 15-40 parts of titanium dioxide, 0.4-0.8 part of a dispersing agent and 0.2-0.5 part of a defoaming agent, and dispersing for 30-50 minutes at a high speed; adding 30-60 parts of waterborne acrylic resin, 1-3 parts of color paste, 0.3-0.6 part of a defoaming agent, 0.5-1 part of a flattening agent, 0.5-1 part of a wetting agent and 2-5 parts of a thickening agent and dispersing for 10-30 minutes at a middle speed; and stopping dispersing to prepare the water-based floor paint. Compared with the prior art, a hydroxyl acrylic emulsion is mixed with hydroxyl acrylic dispersion according to any ratio, so that the water-based floor paint is relatively high in brightness, abradability, flexibility and color retaining rate; the relatively high color retaining rate and the weather resistance are achieved; the water-based floor paint is non-toxic, harmless and environmentally friendly; the harm to the human health caused by organic solvents is avoided; the complete environmental protection effect of construction and application can be implemented.

The invention discloses a double-color burnt-out sofa fabric technology, and specific steps comprise: preparing raw materials, warping, putting on a machine, weaving, checking, shaping at high temperature, napping, performing pre-lustring treatment, performing pre-shaping treatment, performing burnt-out treatment, performing water processing, performing dyeing treatment, performing dewatering treatment, shaping and drying, shearing, performing post-lustring treatment, shaping a finished product, combining, and rolling and packaging. Fluff of a sofa fabric produced by the technology is upright, and is good in brightness. The fabric is smooth and soft in hand feeling, good in strength, and is durable.

The present invention provides a color-mixing light-emitting diode module. According to the present invention, a first light-emitting chip and two second light-emitting chips are disposed on a holder. The first light-emitting chip emits red light and the plurality of second light-emitting chips emit white light. The red light and the white light are mixed, giving mixed light with high color rendering and brightness. Objects illuminated by the mixed light will exhibit colors closest to their original colors as perceived by eyes. Furthermore, by arranging the first and second light-emitting chips in matrix, the color rendering of the light-emitting diode module can be adjusted and improved.

The invention discloses a method for arranging five LEDs with three basic colors. The arrangement has the following characteristics: each LED is evenly and regularly distributed at equal distances, and the entire display screen is composed of RGBGR square arrays as basic units, and its constituent elements Form a square, with one LED in the center, the order of orientation is R in the upper left, G in the upper right, B in the center of the square array, G in the lower left, R in the lower right, and five adjacent LEDs form a RGBGR square array , and take this as the basic unit, spread out and arrange evenly and regularly on the display screen, and at the same time, there is a B in the middle of any two adjacent RGBGR square matrices, and the distance between B and B is equidistant, so , and added a GRBRG square matrix. This arrangement method prominently solves the selection range of LED materials, satisfies the application of high, medium and low-end display screens in the existing display market, and flexibly adapts to the different needs of users for plug-in and chip light-emitting diodes. At the same time, it also The method of five-light arrangement can be used to improve the display effect of single-color, double-color and full-color according to different quality LED materials. Only the flexible changes in the matching of materials can meet the needs of the market.

A spread illuminating apparatus includes a point light source; a light guiding plate having a light incident face on which the point light source is mounted, and a light output face. The light incident face has light incident prisms diffusing light emitted from the point light source into a planar space substantially parallel with the light output face. The light incident prisms include: a first prism portion including a plurality of first prisms convex relative to the light incident face; and a second prism portion including a second prism convex relative to the light incident face, the second prism portion being placed next to the first prism portion in a longitudinal direction of the light incident face. The first prism partially overlaps another first prism adjacent thereto, and the vertex of each first prism is set higher than the vertex of the second prism relative to the light incident face.

The invention discloses a compounded main brightener for preparing a zinc-plating brightener, which comprises the following components in percent by weight: 59-61 percent of salicylic aldehyde, 24-26 percent of formaldehyde and 14-16 percent of 2,4-dichlorobenzaldehyde. The method comprises the following steps of: preparing the components according to the proportion; adding the components into a reaction kettle, and mixing and stirring uniformly; adding alkali liquid with the content of 50 percent according to the proportion of 350-400ml/L; regulating a pH value to 6.3-6.7; heating to 75-85 DEG C; keeping the temperature for 3-4 hours; reducing the temperature to the room temperature and filtering by using a piece of filtering cloth; adding the filtered precipitate material into a drying machine for drying; and adding the filtered precipitate material into a dryer for drying to obtain a finished product. The finished product and a high-temperature carrier are prepared into compounded brightener for sylvite zinc plating, and the compounded main brightener has the advantages of quick polishing, no oxidation, good galvanization and high cladding brightness and is stable and durable without color changing.

The invention involves a resin composite decorative plate, it mainly consists of wood plate and resin coating the plate. Its characteristics are that it is prepared through the following method: daubing ceresin wax on the base seat and frame, wiping until dry; adding accelerator, color paste and curing agent into resin, stirring uniformly, pumping the foam fully; pouring the resin into frame on said base seat plate, laying and forming solidified resin layer; then pouring stirred materials on the solidified resin layer in frame, laying wood plate and curing; pouring stirred materials on the wood plate to making the gap between the wood plate and the frame is full of stirred materials and the a stirred materials layer is formed on the wood plate, laying and curing; then pouring the stirred materials on the solidified layer and covering transparent cladding paper, strickling and curing; putting it into oasthouse drying and demolding. The resin composite decorative plate is completely waterproof, and has high planeness, good brightness and no seams, the surface can beproduced for any pattern, it can be used in architectural and indoor and outdoor decorative areas as decorative sheet materials widely.

The invention discloses an environment-friendly hot-melt marking coating and a preparation method thereof, and belongs to the technical field of environment-friendly hot-melt marking coatings. The environment-friendly hot-melt marking coating is prepared from, by weight, 13-15 parts of modified C5 petroleum resin, 6-8 parts of a pigment, 27-29 parts of quartz sand, 26-28 parts of ground calcium carbonate, 1-3 parts of castor oil, 2-4 parts of polyethylene wax, 1-3 parts of powdered acrylonitrile-butadiene rubber and 20-23 parts of glass beads. The invention also discloses a preparation methodof the environment-friendly hot-melt marking coating. The environment-friendly hot-melt marking coating has the advantages of good fluidity, high compressive strength, short drying time, high softening point, good flexibility, water resistance, acid and alkali resistance, good light reflection performance and the like.

Provided is a fundus camera including: an illumination unit for illuminating an eye to be inspected with light from an observation light source or light from an photographing light source; an photographing unit for guiding reflected light from the eye to an photographing element, to record an image thereof; a calculation unit for calculating an appropriate observation or photographing light intensity based on an illumination light intensity of the illumination unit and an image signal of the photographing element; an automatic light intensity adjustment unit for causing one of the observation and photographing light sources to emit light at the light intensity determined by the calculation unit; and a light intensity adjustment control unit for controlling the automatic light intensity adjustment unit according to any one of the case of acquiring the fundus image and the case of acquiring the anterior ocular image.

The invention discloses water-based propylene marker pen ink and a preparation method thereof. The water-based propylene marker pen ink comprises 10-20% of titanium dioxide, 0-4% of pigment, 5-8% of an interphase modifier, 40-50% of an acrylic resin emulsion film-forming agent and 25-40% of water, wherein the interphase regulator comprises an amphiphilic polymer and a polymer with a moisturizing effect. According to the ink, titanium dioxide and pigment are used, an environment-friendly non-toxic polymer is used as a functional interphase regulator, and a film-forming emulsion is matched, so that the ink which is stable in performance, smooth in water discharging, uniform in distribution and high in color fastness is obtained. The raw materials of the ink are cheap and easily available, the preparation process is simple and feasible, the process and the product are environment-friendly and non-toxic, and the ink does not contain any volatile organic small molecular substances.

The invention discloses a backlight FPC board which includes an FPC board and multiple groups of pads arranged in an array along the length direction of the FPC board. The pads are bonded together through a jump wiring process. Each group of pads includes a pole A and a pole K. The jump wiring process is that the K pole of each pad jumps across an adjacent pad and is connected with the pole A of the next pad through a printed line. The invention further presents a backlight half-finished product which includes a light guide plate, an LED component and a backlight FPC board. The backlight FPC board is connected horizontally to the lower end of the light guide plate. The LED component is adhered to the back of the backlight FPC board through SMT. Solder paste is applied between the LED component and the backlight FPC board. The technical scheme can avoid the flash of backlight caused by the elevation of the LED component due to the fact that the lines absorb the solder paste. The loss ofbacklight brightness is reduced because of the high co-linearity, low line resistance and low current loss of LEDs. The thickness of the FPC board can be effectively controlled. The light effect andoptical brightness of the product can reach the best state.

The invention provides an ultra-micro calcium bacterium inhibition and haze prevention mask, and solves the problem that masks are poor in haze prevention effect in the prior art. The ultra-micro calcium bacterium inhibition and haze prevention mask comprises a mask main body and ear hanging ropes arranged on two sides of the mask main body, wherein the mask main body comprises a ventilation layer, a bacterium inhibition layer and an outer layer sequentially from the inside outwards, the bacterium inhibition layer is formed by stacking a plurality of bacteriostatic cloths, the bacteriostatic cloths are composed of carriers loaded with ultra-micro calcium far infrared mixed powder, the carries are ramie cloths, the outer layer is a bamboo carbon fiber cloth loaded with nanometer titanium dioxide, and the ventilation layer is a fabric made of ramie. The ultra-micro calcium far infrared mixed powder is added in the bacteriostatic cloths, and after ultra-micro calcium nanoparticles are contacted with water molecules in air, the ultra-micro calcium nanoparticles can instantaneously and continuously release far infrared rays, and thereby catalyze decomposition of harmful organic molecules of formaldehyde, benzene, acetaldehyde and the like, promote sedimentation of suspended solids in the air, and achieve the purpose of purifying the air.

A color LED lamp bundle string embedded in with serial transmitting - driving control chip includes a red LED lamp, a blue lamp, a green lamp, serial transmitting - driving control chip and resistance. It is featured as using said chip to control lamp display, forming a line of lamp bundle string by a numbers of above said lamp bundle strings, cascading lines of lamp bundle strings for preparing any desired length of rope lamp bundle string.

The invention belongs to the field of garden and park landscaping, and particularly relates to a processing reagent of a plant material for landscape decoration, and a preparation method thereof. Theprocessing reagent is prepared from the following raw materials: polyacrylate emulsion, titanium dioxide, water-based acrylic resin emulsion, ethanol, an organic silicon defoamer, a dispersing and thickening agent, a film forming auxiliary agent, a wetting agent, a multifunctional aid, a preservative, a concentrated organic dye, water-based essence and water. According to the invention, the raw materials used in the formula of the plant material processing reagent for landscape decoration are non-toxic and meet the requirements of the international environmental protection standard; the reagent is simple in processing process and low in raw material cost; and the plant material processed by adopting the reagent is soft in texture, fresh in odor, rich in elasticity in touch, bright and lasting in color and luster, has the characteristics of uniform coloring, good color fastness, water resistance, mildew resistance, abrasion resistance and the like, and can be used for processing commonplant materials such as herbs, woody plants, cladonia rangiferina, moss and the like, and the processed plant material is widely applied to various indoor and outdoor landscape decoration projects.

Disclosed is a light guide plate for backlights which comprises a transparent thermoplastic resin substrate whose one side serves as the light-emitting surface. The transparent thermoplastic resin substrate has less than 20 bright dots having a size of not less than 0.1 mm<2> in an area of 319*150 mm.

The invention provides a water-based environmentally-friendly color-changing artistic coating and a preparation method thereof, and relates to the technical field of coating preparation. The water-based environmentally-friendly color-changing artistic coating is composed of the following components in parts by weight: 50-60 parts of an acrylic emulsion, 60-70 parts of deionized water, 6-8 parts oflow-viscosity cellulose, 7-9 parts of ethylene glycol, 8-10 parts of photosensitive color masterbatches, 4-6 parts of fluorescent powder, 2-4 parts of titanium dioxide, 1-3 parts of mica sand powder,4-5 parts of a dispersing agent, 4-6 parts of an antifoaming agent, 3-5 parts of a leveling agent, 2-4 parts of a wetting agent, 5-7 parts of a brightener and 4-5 parts of a film-forming auxiliary agent. According to the invention, through addition of photosensitive raw materials for preparation of the artistic coating, the prepared artistic coating has a color changing function; the color of a coating layer can be changed under the irradiation of sunlight; the requirements of a user requiring color change can be met; thus, the application range of the artistic coating is wider.

Provided are an oil-soluble compound represented by a specific chemical formula, a photosensitive resin composition containing the same, and a color filter manufactured by using the photosensitive resin composition.

The invention relates to a light guide plate. The light guide plate comprises a light incidence surface, a light emergence surface, a bottom surface arranged opposite to the light emergence surface and net points arranged on the bottom surface, the net points comprise a first curved surface and a second curved surface, and two flat surfaces located on the first curved surface and the second curved surface, the first curved surface reflects light incident thereto to the light emergence surface with an angle vertical to the light emergence surface, the second curved surface radiates light incident thereto back to the inside of the light guide plate, and the two flat surfaces reflect and radiate light incident thereto to two sides of an initial incidence path of the light incident to the flat surfaces. The light guide plate has the advantages of both having relatively good luminance and uniformity.

The invention relates to a preparation method of a blue green LED luminescent material. The chemical structural formula of the blue green LED luminescent material is M6-x(GayAl1-y)14SiO29:xEu, wherein M is at least one or several of group II alkali earth metal elements, x is not less than 0.001 and not more than 1, and y is not less than 0 and not more than 1. The preparation method comprises the following steps: weighing europium oxide, an M-containing compound, gallium oxide, alumina and silica according to the composition and the stoichiometric ratio of the chemical formula; adding a flux to the above raw materials, carrying out ball-milling mixing on the raw materials and the flux, and screening the obtained mixture by a 120 mesh screen; calcining the screened raw materials in a sintering furnace under the protection of inert gas atmosphere; and serially processing the obtained sintered product to obtain the blue green LED luminescent material. The synthesized target luminescent material has good brightness and good thermal stability, and the color rendering index can reach 95 or more.

An ink set includes a treatment agent containing fumed silica and a bright pigment ink containing a bright pigment and water. The treatment agent or the bright pigment ink contains urethane resin.

The invention discloses high-uniformity optical glass and a preparation method, and relates to the technical field of optical glass, the optical glass has the characteristics of optimal opaqueness, optimal whiteness, optimal brightness and the like, has strong adhesive force, is not easy to generate chemical change, has a very high melting point, also has a relatively good ultraviolet shielding effect, and can be used for preparing optical glass. The boric acid can improve the heat resistance and transparency of the optical glass, improve the mechanical strength and shorten the melting time, and the optical glass is excellent in performance, has the characteristics of high refractive index and high dispersion, has stable optical properties and high optical uniformity, and has the advantages of high temperature resistance, low expansion coefficient, high mechanical strength, good chemical performance and the like; the optical glass is excellent in devitrification performance, devitrification resistance, chemical stability and mechanical performance and high in transmittance, the chromatic aberration of an optical system is improved, the preparation method of the optical glass is simple and easy to implement, and batch production is easy to achieve.

The invention relates to a blue-green LED (light emitting diode) light-emitting material. A chemical structural formula of the material is M6-x(GayAl1-y)14SiO29:xEu, wherein M refers to at least one or more of group-II alkaline-earth metal elements, x is larger than or equal to 0.001 and smaller than or equal to 1, and y is larger than or equal to 0 and smaller than or equal to 1. An emission waveband of the synthesized target light-emitting material is 490-510nm, the deficiency of spectrum at a blue-green light wave band in existing LED packaging is effectively filled, and the synthesized target light-emitting material is high in luminance and heat stability. In addition, after the synthesized target light-emitting material is matched with other light-emitting materials to obtain LED lamps by packaging, a color rendering index can reach 95 or above.

The invention relates to the technical field of polymer microspheres, and discloses a polymer microsphere as well as a preparation method and application thereof. The method comprises the following steps: (1), stirring and mixing silicon-containing methylamine, chloropropene and absolute ethyl alcohol, then carrying out heating reaction in a nitrogen atmosphere, and then carrying out rotary evaporation, cooling, washing, recrystallization, reduced-pressure suction filtration and vacuum drying to obtain a silicon cationic monomer; (2), adding the hydrophilic white carbon black into an ethanol water solution, performing stirring and dispersing, adding a silane coupling agent in a stirring state, performing heating, carrying out condensation reflux, performing cooling to room temperature, stopping stirring, performing washing, and then performing drying to obtain modified white carbon black; and (3), mixing styrene, N-tert-butyl acrylamide, a silicon cationic monomer, the modified white carbon black, a cross-linking agent and 2, 2'-azo (2-methyl propyl amidine) dihydrochloride, and adding water for reaction. The polymer microsphere prepared by the method can be combined with gardenia yellow dye, so that the anti-aging performance of the dye is greatly improved, and a series of indexes after dyeing are also improved.