97results about How to "High sharpness" patented technology

An ink set includes at least two aqueous inks A and B with different colors, the inks A and B used in an inkjet recording method in which the inks A and B are superimposed for formation of a color image, wherein the ink A contains water-dispersible colorant A1 free of a surfactant-based dispersant, and anionic compound A2, and wherein the ink B contains water-dispersible colorant B1 containing a surfactant-based dispersant.

The invention discloses an image sharpening device used to sharpen original images. The image sharpening device comprises a low-pass filter, a high-pass filter, an edge detector, a sharpening parameter generating unit and an operation unit. The low-pass filter and the high-pass filter as well as the edge detector respectively receive the original image and respectively output a low-frequency image, a high-frequency image and a plurality of edge detection values correspondingly. The sharpening parameter generating unit receives the plurality of edge detection values and respectively outputs a plurality of corresponding sharpening parameters. The operation unit adjusts the high-frequency image according to the sharpening parameters, outputs the adjusted high-frequency image, and combines the adjusted high-frequency image with the low-frequency image to obtain the output image with a sharpened image.

A method of adjusting exposure settings for a digital camera includes searching at least a portion of the field of view of the camera for pixels having a flesh tone. The flesh tone pixels are analyzed to identify at least one flesh tone spot. Spot metering of the field of view of the camera is carried out such that at least one flesh tone spot is given greater weight than the rest of the field of view. Then, the exposure settings are adjusted based on the spot metering.

A light sensing apparatus comprises a first base plate, a light emitting diode, a light sensing unit and a driving element electrically connected with the light sensing unit. The invention relates an arraying relation between the light emitting diode and the light sensing unit on the first base plate.

Disclosed is a method for forming a composite layer, in which a mixture of the inorganic particles and the thermoplastic resin are flame sprayed to a substrate at a temperature of not less than the glass transition point of the thermoplastic resin and not more than melting point of the inorganic particles, wherein the mixture comprises 85-99% by weight of the inorganic particles and 15-1% by weight of the thermoplastic resin, total weight of the mixture being 100% by weight.

The invention discloses a preparing method of a nickel tungsten base band used for a coated conductor. A powder metallurgic method is adopted to prepare a Ni-5at%W pre alloy rod according to the atomic ratio of Ni to W which is equal to 95 to 5; the pre alloy rod is melted for two times in a vacuum electric arc furnace to obtain nickel tungsten cast ingot; after forging, hot rolling and cold rolling, Ni-5at%W alloy strip is obtained, and one time of destressing intermediate annealing is added into the cold rolling process; the continuous recrystallization annealing is carried out on the Ni-5at%W alloy strip to obtain the nickel tungsten base band with cubic texture. The powder metallurgic method and the vacuum electric arc furnace are adopted for the melting by the invention to prepare the nickel tungsten cast ingot. The evenness of the alloy distribution is improved. Processes of forging, hot rolling, cold rolling and continuous recrystallization annealing are adopted to obtain the nickel tungsten base band with the cubic texture with high sharpness. The alloy base band has high tensile strength and yield strength. The width and the length of the alloy base band can reach to the practical application requirement for the preparation of practical coated conductor long band.

A method is disclosed for producing signals representative of an image of a scene including the following steps: providing an image sensor with a lenticular lens pattern thereon, and projecting the image onto the image sensor via the lenticular lens pattern, the image sensor having a pixel element pattern and the lenticular lens pattern having diamond shaped lenticles and being diagonally oriented with respect to the horizontal scanning direction of the pixel element pattern; and producing image-representative signals by reading out signals from the pixel elements of the image sensor.

An inkjet printing system comprises an inkjet printer and an inkjet ink comprising water, a self-dispersing carbon black pigment, and a water soluble polymer containing carboxylate groups, wherein:

the carbon black pigment comprises greater than 11 weight % volatile surface functional groups; and

the ink also contains an organic base having a pKa>7.5 and an optional inorganic base in combined amounts sufficient to provide alkaline equivalents of at least 150% of the acid equivalents of the water soluble polymer;

provided the equivalents of the organic base are greater than or equal to the equivalents of the inorganic base.

The invention provides a monitoring lens, which comprises a first lens group, a second lens group and a diaphragm, and is characterized in that the first lens group sequentially comprises a first lens with negative focal power, a second lens with positive focal power and a third lens with negative focal power from an object side to an imaging plane; the second lens group comprises a fourth lens with positive focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from the object side to the imaging plane; the first lens, the second lens and the fifth lens adopt a glass spherical lens, the third lens, the fourth lens and the sixth lens adopt a plastic aspherical lens, and the optical centers of the lenses are located on the same straight line. According to the invention, three plastic aspherical lenses are adopted, so that the number of lenses is reduced, and the length, the weight and the manufacturing cost of the lenses are reduced; and the aberration of the lens is enabled to be effectively corrected through matching and combining the lenses of different materials, the reasonable focal power and the air gap distribution, and the monitoring lens has the advantages that small focus shift is generated at high and low temperatures and the like.

The present invention relates to an antireflection film comprising a hard coating layer in which a ten-point average roughness (Rz) of the surface irregularities is 0.05 μm to 0.2 μm and an internal haze is 0.5% to 5%; and a low refractive index layer formed on the hard coating layer, and a display device comprising the antireflection film.

An inkjet printing system including an inkjet printer having a printhead and an inkjet ink in an ink tank supplying the inkjet ink to the printhead, wherein the ink tank includes a free ink compartment and a capillary media compartment vented to the atmosphere and in fluid communication with ink in the free ink compartment, and wherein the inkjet ink includes water, a self-dispersing carbon black pigment having greater than 11 weight % volatile surface functional groups, and a surfactant at a concentration of 0.10 weight percent or less, and having a static surface tension of 37.5 dynes/cm or less at 25° C. The system provides high print density and text sharpness when printed onto an ink receiving medium, and provides good performance in a bubbler-type ink tank which reduces the amount of ink trapped in the ink tank.

The invention provides an unmanned aerial vehicle (UAV) camera lens. The camera lens sequentially comprises, from the object side to the imaging plane, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a diaphragm, a sixth lens, a seventh lens, and an eighth lens. The first lens, the second lens and the fourth lens are glass spherical lenses which are meniscus-shaped and concaved toward the imaging plane. The third lens is a glass aspheric lens which is meniscus-shaped and concaved toward the imaging plane. The fifth lens and the sixth lens are biconvex glass spherical lenses. The fifth lens and the fourth lens form an agglutinated lens. The seventh lens is a glass spherical lens which is meniscus-shaped and concaved toward the object side. The eighth lens is a biconvex glass aspheric lens. All the lenses of the UAV camera lens are made of glass. The UAV camera lens can adapt to different temperature occasions. The UAV camera lens has the advantages of good temperature control effect, clear imaging, high sharpness, and high resolution quality. The number of pixels is at least above 12 millions.

The invention relates to an LSPR adjustable gold@silver core-shell nanostar and a preparation method thereof. The gold@silver core-shell nanostar comprises a gold nanostar and a silver shell layer coated on the surface of the gold nanostar, wherein the gold nanostar comprises a gold nanosphere positioned at the core and gold nanospines on the surface of the gold nanosphere. Firstly, a liquid-phasechemical method regulated by seeds is adopted, the concentration of the gold nanosphere in a precursor is regulated, and the regulating effect of a surfactant on the growth of a gold nanostructure isutilized, so that the gold nanostar with adjustable size and the LSPR peak between 587-890 nm is prepared; and a polyhydroxy alcohol reduction method is further adopted, ethylene glycol is used as asolvent and a reducing agent, silver nitrate is used as a silver source, the silver shell layer is coated on the surface of the gold nanostar in situ, the surface enhanced Raman scattering (SERS) activity of the nanostar structure is greatly improved, and meanwhile the morphology and the LSPR interval of the core-shell nanostar are maintained. The LSPR adjustable gold@silver core-shell nanostar provides a new choice of materials for a plasmon-driven solar-chemical energy photocatalytic reaction.

The invention discloses water-based digital printing thermal dye sublimation jet ink and belongs to the technical field of thermal dye sublimation ink. The thermal dye sublimation jet ink is preparedfrom components in percentage by mass as follows: 1%-10% of resin, 5%-50% of color paste, 10%-50% of a solvent, 0.1%-1% of an antibacterial preservative, 0.1%-1% of a pH regulator, 0.1%-3% of a wetting agent and 10%-50% of deionized water. The thermal dye sublimation jet ink has better printing smoothness and stability and high sharpness, the quick drying property is greatly improved, the printingeffect is good, and the applicability to an EPSON MT4114 nozzle is also improved.

The present invention relates to anti-reflective films including: a light-transmitting substrate; a hard coating layer; and a low refractive layer, wherein the low refractive layer includes a first region including a binder resin and high refractive inorganic nanoparticles and a second region including a binder resin and low refractive inorganic nanoparticles, and when polarization ellipticity measured by ellipsometry is fitted to a Cauchy model for each of the first region and the second region, predetermined requirements are fulfilled.

The invention relates to a high-image-quality wide-angle optical camera lens. The high-image-quality wide-angle optical camera lens comprises a lens cone. A diaphragm is arranged at the front end of the lens cone. In a cavity of the lens cone, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens are sequentially arranged behind the diaphragm from outside to inside, and space rings are correspondingly arranged between the adjacent lens. The first lens is a forward focal length lens, the first surface towards the object surface is an oval aspheric surface, and the second surface towards the image surface is a hyperbola aspheric surface. Crescent backward focal length lenses are arranged on the two surfaces of the second lens, and both the surfaces are hyperbola aspheric surfaces. The third lens is a forward focal length lens, the first surface towards the object surface is a hyperbola aspheric surface, and the second surface towards the image surface is an oval aspheric surface. Forward focal length lenses are arranged on the two surfaces of the fourth lens, and both the surfaces of the fourth lens are hyperbola aspheric surfaces. The fifth lens is a backward focal length lens, and both the surfaces of the fifth lens are hyperbola aspheric surfaces. The sixth lens is a backward focal length lens, and both the surfaces of the sixth lens are hyperbola aspheric surfaces.

The invention discloses a directional backlight generation method. The directional backlight generation method comprises the steps of measuring the cycle angle of a micro-column lens array; installing the micro-column lens array on the surface of a liquid crystal displayer panel and fixedly attaching the micro-column lens array to the surface of the liquid crystal displayer panel; dividing the liquid crystal displayer panel into a plurality of areas in the horizontal direction according to the width of each cylindrical surface prism and distributing all pixels to the corresponding areas according to the relative positions of the pixels and the cylindrical surface prisms; establishing an independent coordinate system for each area; constructing a brightness control curve with the interval width equal to the width of each cylindrical surface prism; carrying out integral on the brightness control curve in the width interval of each pixel and regarding the integral results as the brightness values of the corresponding pixels; determining the brightness values of all the pixels to obtain the liquid crystal displayer image of backlight in the current direction. The invention further discloses a directional backlight generation system. According to the directional backlight generation method and system, the micro-column lens array does not need to be inclined, Morie fringes are reduced, and the directionality, the sharpness and the control flexibility of the backlight are greatly improved.

The invention provides a selective etching method and a preparation method of a nano needle tip structure. The selective etching method comprises the following steps that a first material layer and asecond material layer are sequentially formed on a substrate, the isotropic etching selection ratio of the first material layer to the second material layer is larger than 10, the first material layercontains doping elements, and the concentration of the doping elements is linearly increased in the thickness direction of the first material layer; and selective isotropic etching is performed on the first material layer, wherein the etching rate of the selective isotropic etching has a positive linear relationship with the concentration of the doping elements, so as to complete the etching of the outer wall of the first material layer. According to the invention, the positive linear relationship between the etching rate in the etching process and the concentration of the doping elements inthe to-be-etched material is utilized, so that sloped sidewalls opposite to the increasing direction of the concentration is obtained; by the adoption of the selective etching method, the nano needletip structure with high sharpness can be obtained, and the size, the shape and the angle of the needle tip structure can be flexibly adjusted.

The invention provides an image processing method and an apparatus thereof. The image processing method comprises the following steps: determining an edge direction of pixel points to be interpolated in an original image; if an included angle of the edge direction and a horizontal direction is greater than 45 degree, determining first transition interpolation points, generating pixel values of the first transition interpolation points according to the pixel values of at least two original pixel points which are upper and lower adjacent to the first transition interpolation points, and generating the pixel values of the pixel points to be interpolated according to the pixel value of the each first transition pixel point; if the included angle of the edge direction and the horizontal direction is not greater than 45 degree, determining second transition interpolation points, generating the pixel values of second transition interpolation points according to the pixel values of at least two original pixel points which are left and right adjacent to the second transition interpolation points, and generating the pixel values of the pixel points to be interpolated according to the pixel value of the each second transition pixel point. By using the image processing method and the apparatus of the invention, smoothness and sharpness of the image edge after amplification processing can be increased.