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148results about How to "No chromatic aberration" patented technology

Low-carbon water granite paint

The invention relates to a low-carbon water granite paint which comprises 30-60 parts of composition A, 10-30 parts of composition B, 15-30 parts of composition C and 0.2-1.2 parts of thickener D. Compared with natural stone, the low-carbon water granite paint has the following advantages: 1. light dead weight: the low-carbon water granite paint can not increase the load to buildings, can be applied to the basal plane of the external wall without the risk of shedding, and is very suitable for external thermal insulation; 2. strong simulation sensation: the low-carbon water granite paint can be compounded to simulate various types of granite without color difference; 3. the low-carbon water granite paint is free from the restrictions of the complex basal plane, can be easily used for construction, and can completely cover the wall without seams; 4. the pointing construction can sufficiently display the tactile sensation of the decoration design of the dry-hanging stone; and 5. the surface of the coating can be treated to enhance the pollution resistance and weather resistance, thereby reducing the maintenance. Compared with the traditional real stone paint, the low-carbon water granite paint has the following advantages: 1. material saving and light dead weight as compared with the real stone paint simulated granite; 2. simple construction: the low-carbon water granite paint can be sprayed by only a single gun, but the real stone paint simulated granite needs to be sprayed by multiple guns; 3. the effect of the low-carbon water granite paint is more similar to the natural stone than the real stone paint simulated granite; and 4. when the low-carbon water granite paint is used for large-area construction, people can not feel color difference of uneven color dots caused by using the real stone paint simulated granite.
Owner:ZHONGSHAN TAILAI PAINT CHEM

Spray coloring stack dying process for cotton woven fabrics

The invention relates to a spray coloring stack dying process for cotton woven fabrics, Gray fabrics are dyed by adopting a reactive dye, an accelerating agent and an alkaline agent. The spray coloring stack dying process for cotton woven fabrics is characterized in that pre-processed gray fabrics are wound to two parallel fabric guide rollers, wherein one end of the gray fabrics is wound on the first fabric guide roller, and the other end of the gray fabrics is wound on the second fabric guide roller so that the gray fabrics between the two fabric guide rollers are in a flat condition; and spray heads are arranged on the front or/ and the back of the flat gray fabrics opposite to the gray fabrics, and are used for applying a reactive dye water solution, an accelerating agent water solution and an alkaline agent water solution to the gray fabrics. In the process, the cotton woven fabrics and the dyeing solutions are in the ultralow proportion in weight of 1:1 to 1:1.5, the dye, and the accelerating agent and the alkaline agent are applied in a continuous and circular spray mode, and are stacked in a container in a temperature controlled condition so that more than 90% of the dye can be in linking reaction with the cotton fibers sufficiently. The spray coloring stack dying process for cotton woven fabrics has the advantages of high dyeing efficiency, low exhaust, no color differences among the front, middle and back parts as well as the left, middle and right parts, and flat dyed fabrics without color embossing.
Owner:常熟市精晟达诚金属制品有限公司

Efficient printing and dyeing equipment

The invention discloses efficient printing and dyeing equipment. The equipment comprises a shell, a stirring box and a water pump are fixedly connected to the two sides of the top of the shell respectively, and a first supporting plate is fixedly connected to the left side of the shell; a second supporting plate and a third supporting plate are fixedly connected to the top and bottom of the rightside of the shell respectively, and a first rolling cylinder and a second rolling cylinder are movably connected into the first supporting plate and the second supporting plate through hinge pins respectively. According to the efficient printing and dyeing equipment, through arrangement and cooperation of a first motor, stirring blades, a first electric heating wire, a water outlet pipe, a first connection pipe, a first spraying nozzle, a second connection pipe, a third connection pipe, a second spraying nozzle, a second electric heating wire and liquid discharging holes, the printing and dyeing equipment conducts efficient printing and dyeing and can make dye density more uniform, color difference of printed and dyed fabric or unstable coloring at partial portions cannot be caused, the quality of the fabric cannot be influenced, and the equipment helps people to use the fabric.
Owner:SUZHOU RUIRI TEXTILE SCI & TECH

Portable laser-induced breakdown spectroscopy analysis device

The invention discloses a portable laser-induced breakdown spectroscopy analysis device. The portable laser-induced breakdown spectroscopy analysis device comprises a laser device, a beam splitting unit, a reflection mirror group, an off axis parabolic mirror and a spectrograph; laser rays emitted by the laser device are transmitted to the reflection mirror group in parallel through the beam splitting unit, and are focused on the surface of a sample to be tested after reflected with the reflection mirror group; signal light rays emitted by the sample to be tested are emitted to the beam splitting unit after reflected with the reflection mirror group; the laser rays and the signal light rays are in coaxial in a light path between the beam splitting unit and the sample to be tested, are reflected to the off axis parabolic mirror through the beam slitting unit, and are transmitted to the spectrograph after reflected with the off axis parabolic mirror, and are connected with a control boxfor spectral analysis and display. By adopting the portable laser-induced breakdown spectroscopy analysis device, the defects existing in a transmission-type non-coaxial spectroscopy analysis device are overcome, meanwhile numerical aperture of focused laser rays is increased, focal spot number is reduced, the energy density of the laser rays acting on the surface of an object is increased, an requirement of an instrument on the energy of the laser device is met, so that the portable laser-induced breakdown spectroscopy analysis device has considerably foreseeable industrial and commercial application value.
Owner:NANJING INST OF ADVANCED LASER TECH

Color television imaging system spatial resolution detecting device

The invention in particular relates to a color television imaging system spatial resolution detecting device. At present, color television spatial resolution is not high in measurement precision and not stable in measurement pattern. The color television imaging system spatial resolution detecting device disclosed by the invention comprises a color object generating module, a collimating parallel optical unit, a detected product and an adjusting platform, wherein the color object generating module comprises a light source, a luminance / chrominance control unit and a target; the collimating parallel optical unit is composed of an off-axis parabolic reflecting collimator relative to the center of a detected article, a semi-reflection mirror and a reflector. Through a test pattern generated by a double-integrating-sphere system adopted in the standard color object generating module and through feedback regulation, the detecting device disclosed by the invention can monitor luminance and chrominance of the test pattern in real time and change color information as required; through the off-axis parabolic reflecting collimator, the device can avoid chromatic aberration; meanwhile, the detecting device avoids a barrier in the central region of the collimator, thus guaranteeing a precision requirement.
Owner:XIAN TECH UNIV

All-weather star sensor optical system

The invention relates to a star sensor optical system, in particular to an all-weather ultra-large diameter broad-spectrum star sensor optical system. The optical system adopts a coaxial three-reflector structure form and comprises a first positive reflector, a second negative reflector, a third planar reflector and a fourth positive reflector, wherein the axis centers of the first positive reflector, the second negative reflector, the third planar reflector and the fourth positive reflector are sequentially arranged on the same straight line, and a diaphragm is arranged on the first positive reflector. The all-weather star sensor optical system resolves two technical problems of an existing star sensor optical system. One is that the existing star sensor optical system can be only used for measuring the outer space and can not achieve all-weather measurement. The other is that the existing star sensor optical system is small in caliber, the detectable limited magnitude is low, and the second-stage optical spectrum is large. The all-weather star sensor optical system is favorable for all-weather use of a star sensor, the caliber of the star sensor optical system is increased, the influence on the imaging quality of the optical system from color difference is avoided, and all-weather star sensor optical system is high in one-time detection probability and observable star magnitude.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Ultra-wide field-of-view off-axis three-reflector optical imaging system

The invention discloses an ultra-wide field-of-view off-axis three-reflector optical imaging system which comprises a main reflector with positive focal power, a second reflector with negative focal power, and a third reflector with positive focal power. The reflecting surface of the main reflector is a spherical surface. The reflecting surfaces of the secondary mirror and the third reflector are flat spherical secondary curved surfaces. The curvature radii of top points of the three reflectors approximately satisfy a flat image field condition. The main reflector generates a real image of a far scene between the main reflector and the second reflector. The second reflector and the third reflector perform relay imaging of the real image on an image plane. An aperture diaphragm is placed on the front focal plane of the third reflector, thereby realizing an image-side telecentric optical path. The main reflector inclines along an X-axis relative to incident main light of a central field-of-view. The second reflector is coaxial with the third reflector. After the main light of the central field-of-view in a meridian plane is reflected by the main reflector, an included angle is formed between the reflected main light and the common symmetric axis of the second reflector and the third reflector. The ultra-wide field-of-view off-axis three-reflector optical imaging system has advantages of ultra-wide field-of-view, intermediate relative aperture, wide working wave band, no image-side telecentric barrier, small object-side distortion, high imaging quality, etc. The ultra-wide field-of-view off-axis three-reflector optical imaging system is suitable for earth imaging observation field of a spatial camera, an imaging spectrometer, etc.
Owner:SUZHOU UNIV

Manufacturing process for middle-high-voltage etched foil

The invention discloses a manufacturing process for middle-high-voltage etched foil, and relates to the technical field of production of etched foil. In order to solve the problem that etched foil isprone to deforming in the prior art, the manufacturing process comprises the steps of pretreatment, primary foaming corrosion, secondary foaming corrosion, third hole expansion corrosion and aftertreatment for high-purity aluminum foil; in the pretreatment, the aluminum plain foil is put into pretreatment liquid to be soaked for 40-50 seconds; then the aluminum plain foil is washed and then put into primary corrosion mixing liquid with the temperature of 80-90 DEG C, the foil is washed with pure water to be put into 2% of nitric acid liquid with the temperature of 70-80 DEG C, and direct current with the current density of 0.15 A / cm2 is applied for electrolytic corrosion for 500-600 seconds; and the aftertreatment adopts two-stage annealing heat treatment of different temperatures. The pretreatment process is simple, operation is convenient, deformation is avoided, the annealing process is improved in the aftertreatment, the two-stage annealing heat treatment of different temperaturesis adopted, and the bending performance of the etched foil for an aluminum electrolytic capacitor is greatly improved.
Owner:CENT SOUTH UNIV

In-situ polymerization modified graphene and polyester composite chip as well as preparation method and application thereof

The invention provides an in-situ polymerization modified graphene and polyester composite chip as well as a preparation method and an application thereof. The composite chip is prepared from components in percentage by mass as follows: 50%-80% of PTA (purified terephthalic acid), 10%-40% of ethanediol, 0.1%-10% of graphene, 0.1%-1% of a modifier and 0.6%-1% of a catalyst. The in-situ polymerization modified graphene and polyester composite chip has excellent antibacterial, anti-mite, far-infrared and anti-ultraviolet properties, bacteriostasis rate of escherichia coli, staphylococcus aureus and candida albicans reaches 99.9%, anti-mite rate is up to 97.3%, far-infrared temperature rise reaches 0.88, far-infrared radiation temperature rise is up to 3.3 DEG C, a UPF (ultraviolet protectionfactor) is up to 218, and functionality is good. Besides, the prepared in-situ polymerization modified graphene and polyester composite chip is more uniform, spun filaments or short fibers have no chromatic aberration, furthermore, the technology is simple and easy to operate, and the composite chip is low in cost, high in economic benefit and suitable for large-scale industrial production.
Owner:NANTONG QIANGSHENG GRAPHENE TECH CO LTD

Application of triamine base substituted phenol or triamine base substituted thiophenol and micro-etching treating fluid

ActiveCN107022762APrevent the phenomenon of "hair color"Shorten speedElectrochemical responseEtching
The invention relates to micro-etching treating fluid. The micro-etching treating fluid comprises 30.0-60.0 g/L of sulfuric acid, 10.0-20.0 g/L of hydrogen peroxide, 0.1-1.0 g/L of hydrogen peroxide stabilizer, 2.0-5.0 g/L of inhibitor and 1 L of added water. The inhibitor is selected from the triamine base substituted phenol or the triamine base substituted thiophenol. The above micro-etching treating fluid is used for printed circuit board OSP pretreatment, a clean and rough copper surface can be formed, a protection film can be formed in combination with a copper face in the micro-etching process, the copper face electron supplying speed during the copper-gold electrochemical reaction is reduced, accordingly the potential difference between the copper and the gold is reduced, the biting corrosion rate of a copper welding pad is reduced, generation of the galvanic effect is restrained to the maximum degree, the phenomena of the color difference, area reduction or line excessive corrosion or even biting off cannot happen to the copper face connected with the gold face and obtained after micro-etching treatment, and meanwhile the phenomenon of coloring after OSP treatment can be effectively prevented from happening to the copper surface.
Owner:GUANGDONG GUANGHUA SCI TECH +1

Connection fitting of household product

InactiveCN101672314AQuick assemblyAssembly is achieved quicklyBoltsSheet joiningEngineeringScrew thread
The invention relates to a connection fitting of a household product, which comprises a fitting body and a screw, wherein the screw comprises a screw head and a screw rod, and the screw rod is dividedinto a positioning section and a connecting section; a special-shaped channel in a racket shape is arranged on the fitting body and comprises a channel in a racket plate shape and a channel in a racket rod shape; a toothed body with an expansion function is arranged on the peripheral surface of the fitting body to form a first toothed surface, and at least a pair of positioning grooves and at least a pair of clamping strips which extend to two sides are respectively arranged symmetrically in the axial direction of the first toothed surface; two inner side surfaces of the channel in the racketrod shape on the fitting body form a second toothed surface; the distance between the two toothed surfaces is slightly smaller than the external diameter of the positioning section of the screw rod;a pair of inclined third toothed surfaces are formed between the second toothed surface and the back surface of the fitting body; and the integral gradient of each third toothed surface is matched with the external form of the bottom of the screw head, and the junction of each third toothed surface and the second toothed surface is slightly higher than the positioning section of the screw rod. Thefitting body can be fixed without using any screw thread, can be quickly assembled, and has high construction efficiency and firm connection.
Owner:刘家宇
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