23results about How to "Small color difference" patented technology

The utility model relates to the technical field of backlight of display equipment, and provides a CSP backlight source and a display device. The CSP backlight comprises: a substrate comprising a light emitting circuit; the light-emitting packaging part is arranged on the substrate, electrically connected with the light-emitting circuit and comprises a blue light chip and a red-green fluorescence conversion layer which are sequentially stacked from bottom to top, and the red-green fluorescence conversion layer at least covers the blue light chip and is used for converting and mixing light emitted by the blue light chip so as to emit white light; the light-emitting packaging piece is manufactured through a chip scale package (CSP) technology; the diffusion reflection layer covers the light-emitting packaging piece in a gapless mode, the diffusion reflection layer comprises a cup-shaped diffusion part and a reflection part arranged on the periphery of the diffusion part, and the diffusion powder concentration of the central area of the diffusion part is larger than that of the edge area of the diffusion part; and the lens covers the diffusion reflection layer in a gapless manner.

The invention provides a method for reducing chromatic aberration through chemical galvanization, a chemical galvanization device and chemical galvanization equipment, and relates to the technical field of semiconductor manufacturing, and the method comprises the following steps: after zinc replacement of a wafer is completed in a bath solution of a chemical galvanization bath, opening a bath cover of the chemical galvanization bath, and hoisting the wafer; the partition plate extends out to separate the water injection nozzle from the tank liquid; the wafer is located between the water spraying opening and the partition plate, and ionized water sprayed by the water spraying opening is sprayed to the wafer; and after spraying is completed, the tank cover is closed, the air injection devices on the two sides of the partition plate conduct N2 blowing drying on the partition plate, and after drying is completed, the partition plate is retracted. Compared with the prior art, the device and the method for chemical galvanization replacement can further reduce chromatic aberration; a new zinc replacement tank and related equipment do not need to be purchased, and the zinc replacement tank can be put into production and use only by slightly transforming an existing tank body and adding a water and air spraying device, a partition plate and a transmission device.

Embodiments of the present application provide a projection lens and a projection device. The projection lens comprises, in order from the magnification side to the demagnification side: a first lens group with negative focal power, a second lens group with positive focal power, a diaphragm, a third lens group with negative focal power, and a fourth lens group with positive focal power. The projection lens only comprises one aspherical lens, the aspherical lens is located in the first lens group, and the materials of the lenses comprised in the projection lens are all glass materials.

The invention belongs to the technical field of projection optical lenses, and discloses a projection lens which can form a lens structure with a long back focal length through three lens groups which are respectively used for focusing, zooming and fixing, can obtain higher brightness and contrast through the lens structure with the long back focal length, and is more beneficial to heat dissipation. On the basis, continuous zooming can be achieved through the first zoom lens set, the second zoom lens set and the third zoom lens set which independently move along the optical axis, and meanwhile under the condition that the back focal length is long or the length of the lens is fixed, through the design in the aspects of back focal length control, lens materials and / or lens gluing and the like, continuous zooming can be achieved. The problems of chromatic aberration and difficult light correction caused by a long back focal length lens structure can be solved in the aspects of aberration, chromatic aberration and the like, the contrast ratio and the brightness are better improved, and the purposes of long back focal length, high brightness, low chromatic aberration, low distortion, large aperture and high imaging quality of the projection lens are finally achieved.

This invention provides a radiation-resistant fluorophosphate glass and its preparation method, relating to the field of glass preparation technology. The fluorophosphate glass, by weight, comprises the following raw materials: Ba(PO3)2 30-48 parts, Sr(PO3)2 6-12 parts, Al(PO3)3 10-16 parts, AlF3 4-8 parts, MgF2 4-8 parts, BaF2 4-10 parts, SrF2 6-10 parts, LiF1-4 parts, and Ce-Gd@LaF3 nanocomposite 0.5-2.0 parts. The Ce-Gd@LaF3 nanocomposite is prepared by the following method: a Ce-Gd co-doped nanocomposite is synthesized using Ce(NO3)3·6H2O and Gd(NO3)3·6H2O, and then LaF3 is coated onto the surface of the Ce-Gd co-doped nanocomposite to obtain the Ce-Gd@LaF3 nanocomposite. A method for preparing a radiation-resistant fluorophosphate glass includes Ce-Gd co-doped nanocomposite synthesis, LaF3 coating, and melting of the co-doped fluorophosphate glass. This invention provides a radiation-resistant fluorophosphate glass with excellent radiation resistance, mechanical properties, and optical properties.

The application discloses a printing method, a printer, a device and a storage medium. Material information of a to-be-printed image and current printing medium is acquired first. Then, a color characteristic curve and a color management curve are determined according to the material information. Next, the to-be-printed image is color-corrected according to the material information, the color characteristic curve and the color management curve, so as to obtain a target printing image. Subsequently, a printing operation is performed on the current printing medium according to the target printing image. According to the application, the corresponding color characteristic curve and color management curve are determined according to the material information of the printing medium, so that individual color management for different material printing media can be realized, thereby effectively reducing the color difference between different material areas and greatly improving the consistency and accuracy of colors.

This application relates to a multi-axis reciprocating spraying equipment, which includes a machine body and a gantry module structure. The gantry module structure is connected to a spray gun, and the spray gun is driven to reciprocate along the X, Y, and Z axes by the gantry module structure. A revolution drive assembly is arranged below the machine body and the gantry module structure, and a conversion plate is connected to the revolution drive assembly. The conversion plate is parallel to the Y-axis direction, and fixtures are provided at both ends of the conversion plate for fixing workpieces. The revolution drive assembly drives the conversion plate to rotate, thereby changing the positions of the two ends of the conversion plate. This application realizes parallel operation of workpiece spraying and loading / unloading, resulting in high production efficiency.

The application discloses a micro projection lens and a projection system, which comprise a first lens group, a second lens group and a third lens group from an object side to an image side in sequence; the first lens group comprises at least one aspherical lens, the second lens group comprises at least one aspherical lens, and the third lens group comprises at least one aspherical lens and a group of cemented lenses; the first lens group is used for reducing distortion aberration; the second lens group is used for reducing spherical aberration and reducing the projection size; and the third lens group is used for reducing chromatic aberration. The embodiment of the application can reduce the size and weight of the projection lens, improve the projection quality, and can be widely applied to the field of optical technology.

The present application provides an oil-in-water emulsified cosmetic, which comprises (A) a powder, (B) a water-soluble thickening agent, and (C) a surfactant, the content of the (A) component is 1-30% by mass based on the total amount of the cosmetic, the (A) component contains (A1) a powder treated with an N-acyl acidic amino acid, the (C) component contains (C1) a solid nonionic surfactant with an HLB of less than 7 and (C2) a surfactant with an HLB of 7 or more, and the mass ratio [(C1):(C2)] of the (C1) component to the (C2) component is 1.5:1-30:1.

The application discloses a preparation method and application of colored particles based on electron beam curing, and belongs to the technical field of fine chemical industry. Small-molecule dyes are used as cores, and polymers capable of electron beam radiation curing are used as shells to prepare colored particles, and colored paint prepared from the colored particles is used to spray and color a board. The application has the characteristics of fast curing speed and low energy consumption, avoids the key difficulties of heat curing and light curing in the coloring and curing of the board, and solves the problems of cracking of small-molecule dyes and difficulty in curing in the coloring of textiles by electron beam curing. The application can be widely applied to the coloring of boards, the coating of building materials, and the fields of vehicle paint, wood and textiles. Compared with traditional coloring and curing technologies, the application has the characteristics of short time consumption and low energy consumption.

The application discloses a wide-spectrum high-sensitivity low-illumination lens, which comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and a seventh lens in sequence from an object side to an image side along an optical axis; wherein the second lens and the third lens constitute a cemented lens, the second lens is a biconvex lens with positive refractive power, and the third lens is a biconcave lens with negative refractive power; the first lens, the fifth lens and the sixth lens are lenses with positive refractive power; and the fourth lens and the seventh lens are lenses with negative refractive power. The embodiment of the application reduces the size of the lens, increases the aperture, improves the imaging quality, and can be widely applied to the technical field of optical lenses.

The application provides a kind of dry color protection process of purple Germinatus Bambusae Sinospinosae rich in anthocyanins, and the steps include: selecting fresh and intact purple Germinatus Bambusae Sinospinosae with a length of 25-45 cm, removing the shell, washing with clean water, then absorbing the surface water with clean gauze, cutting into uniform size bamboo shoots, bamboo shoot silk and bamboo shoot strips; at room temperature, immerse the treated purple bamboo shoot samples in different concentrations of color protection solution for 1-10 min, the color protection solution includes 0.1-3.0% CaCl2, 0.1-3.0% L-cysteine, 0.01-2.0% vitamin C, then take out and drain water; dry the purple Germinatus Bambusae Sinospinosae after draining water at a temperature of 50-70℃, after reaching the drying endpoint, take out and cool to room temperature, then vacuum package, put the packaged bamboo shoots into self-sealing aluminum foil bags, and store at room temperature. The purple Germinatus Bambusae Sinospinosae treated by the application can maintain good sensory quality, and the anthocyanin content and activity can be better preserved, ensuring the quality and value of the purple Germinatus Bambusae Sinospinosae.

The application belongs to the technical field of semiconductor packaging, and particularly relates to a glass-based high-integration packaging COB module, which comprises a glass substrate, LED chip die bonding, a frosted epoxy adhesive layer and a driving PCB board; one side of the glass substrate is a lamp surface wiring pad, and a steel mesh printing tin paste layer is arranged on the surface; the other side is a wiring array pad; TGV glass through holes and multilayer metal wiring are arranged in the glass substrate, and vertical connection of the lamp surface wiring pad and the other side wiring array pad is realized through mutual connection; the glass-based direct display COB module has small pixel spacing and many pixel points in a unit area, can bring higher image resolution and better visual quality; the lamp surface is directly molded and formed by using high-transmittance, anti-dazzle black matte frosted epoxy glue, so that the process is simplified, and the cost is reduced; the product batch ink color is controllable, the consistency is high, and the color difference is small; the COB overall light emitting module can be freely assembled and applied to the scene of curved surface and other special-shaped displays, and the indoor decoration and brightening display effect is enriched.

This invention belongs to the field of ceramic materials and processing technology, and relates to a stable glazed ceramic hot-bent slab and its preparation method. The invention includes a green body and a glaze. The green body adopts a multi-component composite flux system, including 20-25 parts quartz, 18-22 parts calcined kaolin, 18-22 parts potassium feldspar, 22-25 parts sodium feldspar, 8-12 parts wollastonite, 2-3 parts magnesium oxide, 0.2-0.5 parts iron oxide, and 0.1-0.3 parts titanium dioxide. The glaze includes 50-70 parts frit glaze, 0.5-5 parts coloring oxide, 2-6 parts alumina, and 1-4 parts zinc oxide. Through innovative green body and glaze formulations and optimized secondary hot-bending heat treatment processes, this invention achieves a hot-bending temperature ≤1150℃ and a holding time ≤60min. The resulting ceramic hot-bent slab has advantages such as high forming accuracy, no surface cracks, good strength retention, small glaze color difference, and low energy consumption, and has good prospects for industrial application.

The present application relates to a sighting lens, which comprises, in order from the object side to the image side along the optical axis, a first lens with positive refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, a sixth lens with positive refractive power, a seventh lens with positive refractive power, an eighth lens with negative refractive power, and a ninth lens with positive refractive power; the effective focal length F6 of the sixth lens and the effective focal length F of the sighting lens satisfy the following relationship: 0.2 <= F6 / F <= 2.0; the effective focal length F7 of the seventh lens and the effective focal length F of the sighting lens satisfy the following relationship: 0.09 <= F7 / F <= 0.30. The sighting lens of the present application has at least one of the following characteristics: super-telephoto, miniaturization, wide spectrum (430nm-940nm), high resolution, low chromatic aberration, good thermal stability (-30-70 DEG C), total field illumination >=99%, lens chief ray angle CRA <1.0 DEG.

The purpose of the present invention is to provide a coating material that is for formation of a light-diffusing layer and that can be used to obtain a projection screen having excellent balance between high transparency and high video display properties; a film that is for a projection screen and that includes a light-diffusing layer formed using the coating material; and a projection screen. The present invention that achieves the purpose is a coating material that is for formation of a light-diffusing layer of a projection screen and that contains: (A) 100 parts by mass of a base resin; and (B) 0.1-50 parts by mass of fine rare-earth phosphate particles. This coating material may further contain (C) 1-30 parts by mass of a silane-coupling agent, and / or (D) 1-30 parts by mass of a compound having an isocyanate group and a polymerizable functional group excluding an isocyanate group. Component (A) that is a base resin may contain (A1) a polyfunctional poly(meth)acrylate.

The application discloses a kind of dark-field imaging super-structure microscopic imaging device and dark-field imaging method, the device includes illumination module and MIID imaging module, illumination module includes mounting sheet and LED light bar (1) placed in mounting sheet one end, sample in mounting sheet will incident light scatter;From below to above, linear polarization film for modulating light polarization state and quarter-wave plate film are respectively arranged on mounting sheet, and composite dielectric filter film for compressing light bandwidth, if sample is dyed by fluorescence, composite dielectric filter film also plays the role of cutting off excitation light, imaging module receives left-handed polarization state and right-handed polarization state sample dark-field image synthesis complete dark-field image;The application makes mounting sheet act as plane waveguide, does not increase additional light source space, realizes dark-field imaging and dark-field fluorescence imaging in the microscopic imaging system based on super-structure lens, while reducing imaging chromatic aberration, improves resolution.

The application discloses a kind of silicon wafer cutting broken wire processing method, comprising: after the first wire net broken wire, the silicon rod being cut is lifted;The end section of the first wire net is retained, and the part except the end section on the first wire net is cut off, wherein the length of the end section of the first wire net is less than 0.15 times the length of the silicon rod;Second wire net is formed by the end section of the first wire net, and the end of the silicon rod is cut by the second wire net to polish the diamond wire with the preset line amount value;Through the diamond wire after polishing, rewiring is carried out, the third wire net is formed, and the silicon rod is continuously cut by the third wire net.The silicon rod is continuously cut by the diamond wire after polishing in the embodiment of the application, so that the wear condition of the diamond wire used when the silicon rod is cut twice is basically consistent, and the silicon wafer color difference is reduced.

An optical film and an electronic device including the optical film are disclosed. The optical film includes: a substrate portion; and a plurality of protrusions disposed on a surface of the substrate portion. Each of the plurality of protrusions includes: a first portion extending in a first direction parallel to the thickness direction of the substrate portion; and a second portion connected to the first portion and extending relative to the first direction at a first angle of inclination, wherein the first angle of inclination is an acute angle.

The invention discloses an anti-warping metal spraying-free PC / ABS (Polycarbonate / Acrylonitrile Butadiene Styrene) alloy material and a preparation method thereof. According to the PC / ABS alloy material disclosed by the invention, the PC with high and low melt index is compounded in the components of the PC / ABS alloy material, so that the buckling deformation of the material is reduced, the excellent bending modulus and impact strength of the material are kept, and the rigidity, dimensional stability and processability of the material are remarkably improved; moreover, by adopting the specific talcum powder subjected to surface treatment by the silane coupling agent, the flexibilizer and the lubricant, the rigidity, the dimensional stability and the surface glossiness of the alloy material are further improved, and meanwhile, the spot defect of metal appearance is avoided. In addition, the vacuum degree in the alloy material machining process is optimized, small molecule volatile matter is removed, and the color difference after aging is reduced. The PC / ABS alloy material prepared by the invention not only has a good appearance effect of imitating metal spraying, but also has excellent rigidity, dimensional stability, surface glossiness, flame retardance and ageing resistance.

The application belongs to the technical field of color paste, and discloses a kind of inkjet ink color paste and preparation method thereof, and the application uses cashew phenol polyoxyethylene ether and acrylic copolymer dispersant containing pigment affinity group as dispersant with mass ratio 1: (0.5~1), the cashew phenol polyoxyethylene ether molecular structure contains phenolic hydroxyl and long chain alkyl, which forms π-π stacking effect with permanent yellow aromatic ring, can quickly wet, penetrate, spread on the surface of pigment;Acrylic copolymer dispersant containing pigment affinity group can make pigment deflocculate by steric hindrance stabilization, which can form multi-point strong hydrophobic adsorption and electrostatic adsorption with the surface of coated modified permanent yellow particles, adsorption is firm and not easy to desorb, can long-term inhibit particle aggregation, the combination of the two significantly improves room temperature stability, thermal stability, centrifugal stability, effectively reduces color difference.

The utility model belongs to the technical field of optical imaging, and particularly relates to an optical imaging lens group and an optical lens, and the lens group comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially and coaxially arranged along the light incidence direction, the second lens is a meniscus negative lens of which the concave surface faces the object side; the third lens is a biconcave negative lens; the fourth lens is a meniscus positive lens of which the convex surface faces the image side; the fifth lens is a meniscus positive lens of which the convex surface faces the object side; a diaphragm; the sixth lens is a biconcave negative lens; the seventh lens is a biconvex positive lens; the eighth lens is a biconvex positive lens; the ninth lens is a biconvex positive lens; the tenth lens is a biconvex positive lens; an eleventh lens which is a negative meniscus lens with a concave surface facing the image side; the lens adopts the optical imaging lens group. According to the utility model, clear imaging can be realized, and the advantages of excellent image quality, high imaging resolution, large F number and the like are realized; the method can be adapted to a large-target-surface sensor, and supports long-distance (10m) clear imaging.

The wide-angle lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged from an object plane to an image plane along an optical axis, in the direction from the object plane to the image plane, the first lens is a convex-concave lens and has negative focal power; the second lens is a convex-concave lens and has negative focal power; the third lens has positive focal power; the fourth lens is a biconvex lens and has positive focal power; or the fourth lens is a concave-convex lens and has negative focal power; the fifth lens is a biconvex lens and has positive focal power; the sixth lens is a biconcave lens and has negative focal power; the seventh lens is a biconvex lens and has positive focal power; the eighth lens is a paraxial region convex-concave lens and an off-axial region concave-convex lens, and has negative focal power; the sixth lens and the seventh lens form a balsaming lens. The wide-angle lens has the advantages of large aperture, large target surface, low chromatic aberration, low distortion, high image quality and the like.