23 results about "Color quality" patented technology

The safe and efficient color plating device comprises a control table and an electroplating pool, a cover is hinged to the upper portion of the electroplating pool, and a temperature sensor, a concentration sensor, a cathode clamping part and an anode clamping part are fixedly installed in the electroplating pool. A heating device for heating an electroplating solution in the electroplating tank is fixedly mounted at the bottom of the electroplating tank, a liquid outlet is formed in the bottom of the electroplating tank, a sealing cover is arranged at the liquid outlet, and an exhaust port is formed in the upper part of the side wall of the electroplating tank; the console comprises a shell, a CPU module and a power supply device are arranged in the shell, a display screen, a power switch, a keyboard and a heating switch are embedded in the surface of the shell, the temperature sensor, the concentration sensor, the display screen, the heating device, the keyboard and the power supply device are all connected with the CPU module, and the power supply device is connected with the cathode clamping part, the anode clamping part and the power switch. The heating device is connected with the heating switch. According to the utility model, the plating quality, the plating safety and the plating efficiency are improved.

The utility model discloses an LED light source structure comprising a substrate, the substrate is connected with a light emitting unit and a first light blocking ring surrounding the outer side of the light emitting unit, and the light emitting unit comprises a purple light LED wafer, a blue light LED wafer, an ultraviolet light LED wafer, a red light generating structure and an infrared light generating structure. The surface of the blue light LED wafer is provided with first fluorescent powder or first fluorescent conversion glue capable of converting part of blue light into yellow light, purple light, blue light, yellow light, ultraviolet light, red light and infrared light are integrated, the light source structure can generate wider spectral distribution, and the color quality and the color rendering index of light are improved. The lighting quality can be improved, and the requirements of specific application fields such as plant growth lamps, special lighting in medical equipment and the like can be met. Through the design of the multi-wavelength LED wafer combination, spectral components are controlled more accurately, so that the energy conversion efficiency is optimized, unnecessary energy loss is reduced, higher luminous efficiency is achieved, and meanwhile energy consumption is reduced.

The invention discloses an on-line real-time monitoring and testing system and method for color difference of a colored film. The method comprises the following steps: acquiring a film image by adopting an optical detection module; the reflection calibration module compensates transmissivity fluctuation of the thin film through a reflection plate located below the thin film, and provides a calibration reference by means of a standard material and a calibration plate with the same height; the motion synchronization module realizes synchronization of high-precision camera acquisition and film motion so as to eliminate motion blur, and adjusts the light source intensity of the optical detection module based on the real-time light transmittance feedback of the film; and the data processing module dynamically updates a conversion matrix from RGB to LAB by using the data of the calibration plate so as to compensate system temperature excursion, obtain an E threshold value and generate a color difference distribution thermodynamic diagram. According to the invention, the problem of inaccurate chromatic aberration measurement caused by factors such as film light transmittance fluctuation, system temperature excursion and motion blur in the prior art is solved, real-time and accurate monitoring and rapid analysis of the film chromatic aberration in the production process are realized, and the method is suitable for film color quality control in a high-speed continuous production scene.

The invention discloses a laser transfer paper gravure cursor recognition system which comprises a transfer equipment body, a visual detection system and a central control system, and the transfer equipment body is sequentially provided with an unwinding unit, a plurality of transfer color cells and a winding unit in the paper feeding direction of a printing material. The visual detection system comprises at least one first visual detection device and a second visual detection device, and the first visual detection device is installed behind a transfer printing color group serving as a reference and used for capturing an original pattern on a printing material and a reference color pattern transferred by the reference color group in real time. The second visual inspection device is arranged behind the last transfer printing color group and in front of the winding unit and is used for detecting the overprinting precision and color quality of a final transfer printing finished product; the visual detection system is in signal connection with the central control system to form a closed-loop control loop; a storage module is arranged in the central control system and used for storing standard pattern data.

The utility model belongs to the technical field of detection tools, and particularly discloses a color measurement plastic standard plate which comprises a sample plate and a handle. One side of the template along the thickness direction is provided with a highlight surface, and the other side of the template along the thickness direction is provided with a matte texture surface; the handle is connected with the edge of the template; the sample plate is provided with at least two texture areas on the matte texture surface; a circle with the diameter larger than or equal to 22 mm can be contained in the texture area, so that it is ensured that when a user places the target plate on a detection table of a color quality detection instrument, the texture area overlays the detection view of the color quality detection instrument, and it is ensured that the color measurement result of the instrument is more accurate; secondly, the user can grab the sample plate through the handle, so that the texture area of the sample plate cannot be in contact with the hand of the user in the whole detection process, the situation that the texture area is scratched or grease is brought in due to the fact that the user takes the sample plate can be prevented, the color measurement result of the instrument is more accurate, and the detection efficiency is improved. And the color measurement accuracy of the texture surface of the template is improved.

The present application belongs to the technical field of structural color, and particularly relates to a kind of colloidal photonic crystal ink, a kind of colloidal photonic crystal structural color and a preparation method thereof.The preparation method provided by the present application adjusts the surface tension and viscosity of the colloidal photonic crystal ink, so that it is suitable for pattern printing;then, the preparation method of the colloidal photonic crystal structural color provided by the present application uses a substrate treated by hydrophobic treatment (OTS treatment) on one hand, which can reduce the pinning of three-phase line, promote the inward movement of nanoparticles and promote the ordered and close self-assembly;on the other hand, through the method of inverted evaporation self-assembly, the Marangoni flow is enhanced, the inward movement of nanoparticles is promoted, and the ordered and close self-assembly process is promoted, so that the colloidal photonic crystal micro-dome has a higher height-diameter ratio, thereby improving the brightness and saturation of the structural color, and providing a new method for optimizing the color quality of the structural color.

The invention discloses a remote sensing map compression method, apparatus and device, and a storage medium. The method comprises the steps of converting an image from RGB to HSV; acquiring a color feature map of the remote sensing image by using the main color channel attention module, performing down-sampling and nonlinear transformation, and inputting the color feature map into the subsequent main color channel attention module again for iterative processing; extracting prior color information output by each main color channel attention module; converting the color feature map into a binary compressed file through an encoder; converting the binary compressed file into a feature image through a decoder; after an analysis result of the main color channel attention module on the feature image is coded, priori color information is used for guiding feature correction; performing color detail enhancement and up-sampling iteration processing on the corrected feature image; and converting the finally corrected feature image from HSV to RGB to obtain a restored remote sensing image. According to the method, color information loss in the remote sensing map compression process can be remarkably reduced, and the color quality and compression efficiency of the restored image are improved.

The present application relates to the technical field of light mixing and provides a color light mixing control method and apparatus, and a lamp. The method comprises: acquiring respective source chromaticity coordinates and source brightnesses of a cold white light, a warm white light, and three source color lights; determining a reference white light on the basis of a positional relationship among a target chromaticity coordinate of a target color light, the source chromaticity coordinate of the cold white light, and the source chromaticity coordinate of the warm white light, and the respective source brightnesses of the cold white light and the warm white light; and determining respective actual color power ratios of the cold white light, the warm white light, and the three source color lights on the basis of the target chromaticity coordinate, the reference white light, the source chromaticity coordinates of the three source color lights, a reference brightness, and the respective source brightnesses of the three source color lights. In the present application, because the two white lights have good spectral continuity, a mixed target color light inherits the characteristic of good spectral continuity of the two white lights, so that the color quality of the mixed target color light is better.

The invention belongs to the technical field of intelligent control, and particularly relates to an axle surface electrophoretic coating control method based on artificial intelligence. According to the method, an axle surface image after electrophoresis is collected through machine vision, color features are extracted by using an improved convolutional neural network, and a color uniformity index is generated. In combination with process parameter time sequence data, large-scale sample labeling amplification is realized through semi-supervised clustering and parameter calibration transformation, an incidence relation between process parameters and color uniformity indexes is established, and key process parameters are screened by using mutual information entropy and correlation analysis. And after the uniformity index prediction model is trained, the key parameter control range is taken as a constraint, a genetic algorithm is adopted to optimize the key process parameters, and an optimal parameter combination corresponding to the target color quality is obtained. According to the invention, the intelligent and optimal control of the electrophoretic coating process of the axle surface is realized.

The present application relates to a kind of preparation methods of non-iridescent structural color film with infrared anti-fake features. First, the aqueous solution of monodisperse microspheres is configured, then a small amount of MXene and carbon black material is added, and a mixed colloidal particle suspension is obtained. By using spray, spin coating or roll coating method, three-dimensional amorphous photonic crystal film is formed on the surface of the substrate by rapid evaporation of solvent. The black material absorbs light and scatters multiple times in the amorphous photonic structure, improving the color quality of the amorphous photonic crystal film and showing good non-iridescent structural color display. By using the better absorption in the solar spectrum and the extremely low emissivity in the mid-infrared band of MXene material, as well as the optical characteristic difference with carbon black and other materials, the structural color film realizes the thermal anti-fake property. After micro-heating, the hidden information can be read by an infrared camera.

According to the color detection and analysis method in the high-speed printing process, advanced hardware architecture and algorithm are adopted, delay between links is reduced to the maximum extent, and it is ensured that spectrum detection on the surface of a material in the high-speed production process can be completed within extremely short time. The clustering algorithm is adopted to process mass spectral data, spectral information of different areas of a complex surface is quickly classified and analyzed, so that quick and fine changes of color information of different areas of the material surface in the high-speed production process are accurately captured, the color quality deviation problem is found in time, and the production efficiency is improved. And an accurate basis is provided for timely adjustment of a production process, so that the stability of product color quality is guaranteed.

The present invention relates to a vertically stacked microdisplay panel, which includes a back wafer having an upper surface on which a plurality of complementary metal-oxide-semiconductor (CMOS) electrode pads are arranged, a plurality of light-emitting diode (LED) stacks, each of which includes a plurality of light-emitting units and a plurality of bonding layers that are stacked in a vertical direction and is arranged on one of a plurality of CMOS electrode pads, and a common electrode formed on the plurality of LED stacks, wherein each of the plurality of LED stacks, by forming a short path in at least one of the plurality of light-emitting units, allows a current to flow through the light-emitting unit in which the short path is not formed, and emits only a specific color, and the short path has a preset depth and a preset width.According to the present invention, since a color filter is unnecessary despite the adoption of a vertically stacked tandem structure, the color quality of a microdisplay can be significantly improved, and process complexity and productivity can be significantly improved.

The application discloses a component for testing color quality of a flat light guide atmosphere lamp, which comprises a shell, a lens and a light guide plate arranged in the shell, a containing groove is formed in the lower end surface of the shell and used for placing a PCB surface of a flat atmosphere lamp light source module to be detected, a cavity is formed downward in the upper end surface of the shell and communicates with the containing groove, the light guide plate is arranged above the PCB surface and below the cavity and is used for sending light on the PCB surface into the cavity, and the lens is arranged in the cavity and used for receiving the light gathered by the light guide plate and emitting the light from the top end of the cavity to enter an external optical analysis equipment. The application can achieve good collection effect, has more accurate and closer use mode of color spectrum of a real vehicle atmosphere lamp, reduces exposure time of the optical equipment compared with a collection structure based on a traditional reflection principle, and realizes high-speed rhythm test.

This invention relates to the field of light mixing technology, providing a method, apparatus, and luminaire for controlling colored light mixing. The method includes: acquiring the source chromaticity coordinates and source brightness of white light and three source colored lights, wherein the source chromaticity coordinates of the white light are located within a basic color gamut formed by the three source chromaticity coordinates of the three source colored lights; acquiring the target chromaticity coordinates of a target colored light, wherein the target chromaticity coordinates are located within the basic color gamut; and determining the color power ratio of the white light and the three source colored lights based on the target chromaticity coordinates of the target colored light, as well as the source chromaticity coordinates and source brightness of the white light and the three source colored lights, wherein each color power ratio is used to determine the target brightness of the light source output of the corresponding color, so as to mix the target colored light. In this invention, because white light has good spectral continuity, the target colored light obtained by mixing white light continues the characteristic of good spectral continuity of white light, thus resulting in better color quality of the mixed target colored light.

This invention relates to the field of light mixing technology, providing a method, apparatus, and luminaire for controlling colored light mixing. The method includes: acquiring the source chromaticity coordinates and source luminance of cool white light, warm white light, and three source colored lights; determining a reference white light based on the positional relationship between the target chromaticity coordinates of the target colored light, the source chromaticity coordinates of the cool white light and warm white light, and the source luminances of the cool white light and warm white light; and determining the actual color power ratio of the cool white light, warm white light, and the three source colored lights based on the target chromaticity coordinates, the reference white light, the source chromaticity coordinates of the three source colored lights, the reference luminance, and the source luminances of the three source colored lights. In this invention, because the two white lights have good spectral continuity, the mixed target colored light continues the characteristic of good spectral continuity between the two white lights, resulting in better color quality of the mixed target colored light.

The application discloses a kind of semiconductor light emitting device color self-fitting method.The method is according to the principle of semiconductor white light mixing, through color quality diagram, the excitation light characteristics of fluorescent material are drawn, and the ratio of fluorescent material is determined in combination with display index.The method has simple structure, high fitting accuracy, can be directly connected or self-built database, pre-test input parameters, through mathematical fuzzy calculation technology, write in CIE color matching logical relationship, through the linear contrast of coordinate and the mode of experience data combination, automatically calculate and give the ratio meeting the requirements, realize the automatic ratio of fluorescent material.The method is more compatible with the increase of use times, effectively overcomes the problem that the spectrum and color of the matched fluorescent material cannot be completely fitted and synthesized according to the emission spectrum.

A light emitting device comprising: an LED for generating blue light; a green phosphor for generating green light; and a manganese activated fluoride narrowband phosphor for generating red light; wherein a ratio of a maximum intensity in the red region of the spectrum to a minimum intensity in the yellow to orange region of the spectrum is from about 5.0 to about 15.0.

The application discloses a light source color fidelity evaluation method, device and equipment and a storage medium. The method comprises the following steps: obtaining a three-stimulus value set corresponding to each spectral band subset and a reference three-stimulus value set by testing the spectral power distribution and the reference spectral power distribution of a light source in a preset wavelength range, a plurality of spectral band subsets and a plurality of test color samples in each spectral band subset; obtaining a color quality coordinate set corresponding to each spectral band subset and a reference color quality coordinate set based on the color quality coordinates of the test color samples under the test light source and the reference color quality coordinates under the reference light source; and obtaining a color fidelity index of the test light source according to the distance between the color quality coordinates and the reference color quality coordinates of the test color samples in each spectral band subset. The color restoration ability in different bands is accurately evaluated, so that the color development authenticity and the overall color fidelity level of the test light source on each main color gamut can be quantitatively reflected.

The application provides a printed product detection system for color quality detection of a printed product printed by a printing device, characterized in that the system comprises: an image acquisition device for acquiring an image of the printed product to obtain a corresponding target image, the printed product being a paper printed product printed with a predetermined image and at least one detection color bar; a color value extraction unit for extracting a color value of the detection color bar in the target image as a to-be-detected color value; a detection parameter reconstruction unit for reconstructing a corresponding detection parameter as a reconstructed detection parameter according to the to-be-detected color value; a judgment unit for judging whether the reconstructed detection parameter is consistent with a predetermined target parameter, and when the judgment result is no, a printing control unit adjusts a printing parameter of the printing device according to the reconstructed detection parameter and the predetermined target parameter. The width of the detection color bar is 0.2 mm-2 mm. The printed product detection system can quickly and efficiently reconstruct the detection parameter on the basis of the detection color bar with a relatively narrow width, and is energy-saving and environment-friendly.

The invention discloses a Wuyi narcissus baking color quality intelligent discrimination method and system based on a near infrared spectrum optimized by a genetic algorithm. The near infrared spectrum of a Wuyi narcissus raw tea sample at the wave band of 400-4000 cm <-1 > is collected, in combination with CIE-Lab chromaticity parameters, Savitzky-Golay smooth filtering and multiple scatter correction combined preprocessing is adopted to eliminate noise interference, key characteristic wavelengths are screened by using a genetic algorithm to construct a wavelength-chromaticity incidence matrix, and the wavelength-chromaticity incidence matrix is used for detecting the wavelength-chromaticity of the Wuyi narcissus raw tea. Partial least squares regression (PLS) and a support vector machine (SVM) are coupled to construct a GA-PLS-SVM hybrid prediction model, and accurate inversion of baking intensity and time parameters is realized. The model calibration set L * / a * / b * prediction R is larger than or equal to 0.90, the verification set R is larger than or equal to 0.85, 82.3% of baking process deviation can be recognized online, and the rock tea standardized production efficiency and the process control precision are remarkably improved.

The application discloses a kind of based on color quality coordinate measurement obtains the method for obtaining film thickness.The present application uses optical fiber light guide, grating and surface array detection mode, obtains the spectral signal of sample, according to the conversion relationship of reflectance spectrum and color quality coordinate, the color quality coordinate of sample to be measured is calculated.The complete mapping relationship of color quality coordinate and thickness of film is obtained by theoretical calculation, and the color quality coordinate in the color quality coordinate of theoretical mapping relationship is compared with actually measured color quality coordinate, so the thickness information of film sample can be accurately obtained.The present application overcomes the shortcomings that wavelength scanning needs to rotate grating or prism in the measurement process in traditional spectral color measurement mode, realizes single full-spectrum measurement, and shortens the time required for measurement.At the same time, compared with wavelength interval in traditional measurement, the present application uses denser spectrum acquisition, so that the color information is more accurately obtained, and the thickness information of nanometer film is quickly and accurately obtained.

The present application relates to the technical field of light mixing. Provided are a light mixing control method and apparatus for color light, and a lamp. The method comprises: acquiring respective source chromaticity coordinates and respective source luminance of white light and three types of source color light, wherein the source chromaticity coordinates of the white light are located within a basic color gamut formed by means of using the three sets of source chromaticity coordinates of the three types of source color light as vertices; acquiring target chromaticity coordinates of target color light, wherein the target chromaticity coordinates are located within the basic color gamut; and on the basis of the target chromaticity coordinates of the target color light, and the respective source chromaticity coordinates and respective source luminance of the white light and the three types of source color light, determining respective color power ratios of the white light and the three types of source color light, wherein each color power ratio is used for determining target luminance outputted by a light source of a corresponding color, in order to obtain the target color light by means of mixing. In the present application, since white light has good spectral continuity, target color light obtained by means of light mixing involving the white light inherits the feature of good spectral continuity of the white light, thereby achieving better color quality of the target color light obtained by means of mixing

The present invention relates to a vertically stacked micro display panel, characterized by comprising: a back surface wafer having a plurality of CMOS electrode pads arranged on the upper surface thereof; a plurality of LED stacks each including a plurality of light emitting portions and a plurality of bonding layers stacked in a vertical direction, the plurality of LED stacks being arranged on the plurality of CMOS electrode pads; and a common electrode formed on the plurality of LED stacks, each of the plurality of LED stacks forming a short-circuit channel in at least one of the plurality of light-emitting portions such that current flows to the light-emitting portion in which the short-circuit channel is not formed, thereby emitting only a specific color, the short-circuit channel having a predetermined depth and width. According to the present invention, even if a vertically stacked tandem structure is adopted, a color filter is not required, so that the chromaticity of the micro display panel can be greatly improved, and the process complexity and productivity can be greatly improved.