19 results about "Colorimeter" patented technology

A colorimetry device includes a support base having a support surface for supporting a measurement target and a carriage to which a colorimeter is detachably attached and that is configured to move in a first direction, which is a direction along the support surface, and in a second direction, which is a direction along the support surface and which intersects the first direction, the colorimeter being configured to measure color of the measurement target, wherein the carriage includes, on an inner wall of an accommodation section that accommodates the colorimeter, a contact surface that is in contact with a side surface of the colorimeter when the colorimeter is attached or detached and a friction coefficient μ1 between the contact surface and the side surface of the colorimeter is smaller than a friction coefficient μ2 between the housing of the carriage and the side surface of the colorimeter.

The application discloses a kind of color measurement equipment and its support and control method, it is related to the technical field of color measurement equipment, support includes: support table, installation bracket, first drive unit, detection unit and control unit, support table has the sample placement part to be measured;Installation bracket is set on support table, and installation bracket can be close to or away from the sample placement part to be measured along the first direction;Installation bracket has the mounting structure for installing colorimeter probe;First drive unit is set in installation bracket;First drive unit is configured to drive mounting structure to move along the first direction;Detection unit is set in installation bracket;Detection unit is configured to detect the pressure that colorimeter probe receives;Control unit is electrically connected with detection unit;Control unit is configured to control the operating state of first drive unit based on the pressure that colorimeter receives.The application can prevent the sample to be measured from being deformed under pressure, improve the accuracy of color measurement data.

This application provides a method and system for measuring the performance of a light source, which improves the convenience of measuring optical performance. The method includes: acquiring a first image; the first image is an image of the brightness detection area when a first attenuator and a first filter are placed directly in front of the lens; performing brightness analysis based on the first image to obtain a brightness calculation result; acquiring a second image, a third image, and a fourth image; the second image is an image of the chromaticity detection area when the first filter and the second attenuator are placed directly in front of the lens; the third image is an image of the chromaticity detection area when the second filter and the second attenuator are placed directly in front of the lens; the fourth image is an image of the chromaticity detection area when the third filter and the second attenuator are placed directly in front of the lens; performing chromaticity analysis based on the second image, the third image, and the fourth image to obtain a chromaticity calculation result; and combining the brightness calculation result and the chromaticity calculation result to obtain a light source performance measurement result.

The application discloses a kind of chromaticity instrument measurement display product chromaticity coordinate area determination method, including (1) chromaticity coordinate stability determination;(2) chromaticity target area optimization;(3) chromaticity target area attribution determination optimization;Traditional stability determination mode is single dimension, CIE1931 original chromaticity coordinate is provided in the form of discrete data with 1nm as wavelength interval, sampling interval is larger, precision is limited, traditional attribution determination is large in amount of calculation for chromaticity diagram of data point dense, according to covariance matrix construction minimum chromaticity ellipse, the spatial distribution characteristics of point set is determined by analysis chromaticity coordinate stability;Original chromaticity point is fitted using piecewise polynomial interpolation, and the coordinate precision is optimized to 0.01nm, two-stage rapid determination strategy is used, first based on polar angle realizes candidate sector preliminary screening, then in the local candidate sector obtained by preliminary screening, accurate determination is carried out using local ray method, and target area positioning of chromaticity coordinate is completed.

The utility model discloses a constant temperature control's double optical path colorimeter, include: light source and reference light path module, including setting up light source subassembly, spectroscope, first temperature detection spare and first photodiode, reference light path passageway and sample light path passageway's first heat conduction spare and first heating piece, and first photodiode sets up in reference light path passageway, colorimeter cell module, detection light path module, including setting up detection light path passageway and second temperature detection spare's second heat conduction spare and second heating piece, and detection light path passageway is provided with second photodiode, temperature control circuit is connected with first, second heating piece and first, second temperature detection spare. Through the device provided by the utility model, through constant temperature control can reduce light intensity fluctuation, wavelength drift, dark current growth and sensitivity drift, improve detection accuracy, through double optical path design synchronous reference signal real -time offset light intensity attenuation or fluctuation of light source subassembly brings the influence, promotes detection stability.

This utility model relates to the field of color measurement technology for colorimeters, and discloses a device for reducing inter-stage differences in multispectral colorimeters. The device includes a base, with a three-axis traveling mechanism fixedly connected to the upper surface of the base. A mounting bracket is fixedly connected to one side of the Z-axis mover of the three-axis traveling mechanism, and a holder for supporting the colorimeter is fixedly connected to one side of the mounting bracket. A rotating shaft is rotatably connected inside the holder, with both ends of the shaft passing through the holder. A micro motor for rotating the shaft is fixedly connected to the upper surface of the holder. This utility model, through the three-axis traveling mechanism and the slotted photoelectric sensor, achieves automatic, rapid, and continuous measurement of multiple standard color cards, completely avoiding problems such as positioning errors, inconsistent pressure, and recording errors caused by manual operation, ensuring high consistency and repeatability of the calibration process.

This invention discloses an online multi-angle colorimeter, belonging to the field of colorimeter technology. Its key technical features include: a light source module containing multiple LED light sources arranged at preset angles towards the measurement area; a receiver module positioned at a fixed angle to receive reflected light signals; an optical system connecting the light sources and the receiver module, guiding the light path and filtering out non-measured light; a data processing unit electrically connected to the receiver module, used to convert light signals and calculate color difference values; a housing for fixing the modules and providing a non-contact measurement gap; preferably, the illumination angle includes multiple specific angles, and the receiver module is configured to receive light at a single angle; a height compensation device is provided inside the housing; the optical system includes a beam splitter prism and a filter group; a communication module is included; the LED light sources employ a uniformly distributed LED array; an automatic calibration module is included; and the housing uses a NEMA 4 protection rating enclosure. This invention enables non-contact online measurement, improving measurement efficiency and automation.

A colorimeter 1 that measures a chromaticity of a measured object A comprises: a first light source unit 11 that emits first irradiation light having a first spectrum S1; a second light source unit 12 that emits second irradiation light having a second spectrum S2 different from the first spectrum S1; an integrating sphere 61 that has irradiation light including the first irradiation light and the second irradiation light incident thereon; a light receiver 20 that detects measured light resulting from irradiation of the measured object A with the irradiation light emitted from the integrating sphere 61; and a controller 50 that calculates an optical spectrum of the measured light based on a detection signal of the measured light. A superimposed spectrum S of the first spectrum S1 and the second spectrum S2 corresponds to a reference spectrum S0 of a standard light source as reference for calculating the chromaticity.

Possess: multiple color sensing part (51) ~ (54), including multiple color filter (511) ~ (541) and receive the light of multiple light receiving sensor (512) ~ (542) through each color filter (511) ~ (541); Multiple signal processing circuit (61) ~ (64) correspond to each of the multiple color sensing part, input from each color sensing part (51) ~ (54) signal, have integral function; Operation part (7), the output from each signal processing circuit (61) ~ (64) is operated. Multiple color sensing part (51) ~ (54) includes the color sensing part with the spectral sensitivity corresponding to the X component, Y component, Z component of the color matching function, the second color sensing part (52), (53) with the spectral sensitivity corresponding to the Y component is multiple. Each signal from the second color sensing part (52), (53) is processed in the corresponding signal processing circuit (62), (63), and is added in the operation part (7).

This suppresses misalignment of the colorimeter relative to the measurement location. [Solution] The measuring guide is an opening provided at the bottom of the main body of the device, which is an opening for taking in light arriving from the object to be measured into the main body of the device, and an incident light processing unit for processing the light incident through the opening, and is a measuring guide for aligning the opening of the colorimeter equipped with the colorimeter with the measurement part of the object to be measured, and comprises a frame that forms the outer circumference of a recess into which the bottom fits, and a sheet material that is transparent and forms the bottom surface of the recess, wherein the sheet material has a window portion that is in position with the opening when the bottom is fitted into the recess.

The utility model discloses a periscope formula spectrum colorimeter, including shell, color wheel disc, intelligent camera and camera lens, and color wheel disc rotation is connected in the front side of shell, and intelligent camera is coaxial with camera lens and is arranged, and intelligent camera is in the back side of shell, and periscope one end is equipped with the light entrance mirror, and the other end is equipped with the light exit mirror, periscope is integrated on color wheel disc, and effective utilization space has solved the shortcoming that traditional imaging colorimeter has no spectrum diagram. The imaging colorimeter of integrated spectrometer can carry out data calibration to the measured sample at the test site, so that the data measured by the imaging colorimeter is more accurate, and convenient to use. The spectrum diagram is obtained through the operation analysis in the spectrometer, the spectrum data and the image are fused, the multispectral data cube or color analysis report is generated, and the spectral characteristics (such as reflectivity, radiation intensity) of the target are obtained.

The utility model discloses a self-centering optical path receiving device, which relates to the technical field of optical precision instruments and comprises a colorimetric pool, a light inlet module and a receiving module. The colorimetric pool is provided with a first mounting opening and a second mounting opening which are opposite; the light inlet module is fixedly arranged at the first mounting opening; the receiving module comprises a photoelectric lens assembly, a photoelectric fixing assembly and a closed hoop; the photoelectric lens assembly is fixedly arranged at the second mounting opening, the photoelectric fixing assembly is provided with a plurality of connecting rings which are arranged on the circumferential side wall and penetrate through the adjusting gap, and the adjusting gap comprises a first axial gap, a circumferential gap and a second axial gap which are communicated in sequence; the end, away from the circumferential gap, of the second axial gap extends to the end, close to the photoelectric lens assembly, of the connecting ring. The closed hoop sleeves the outer side of the connecting ring; the photoelectric lens assembly is provided with a connecting column, and one end of the connecting column penetrates through the connecting ring. The automatic centering device can quickly and automatically center, and the accuracy is improved.

This invention belongs to the field of wastewater treatment technology in the petrochemical industry, specifically relating to a pretreatment system and process for phenol-containing wastewater. The pretreatment system for phenol-containing wastewater includes an inlet pipeline, a coagulation zone, a flocculation zone, a sedimentation zone, and an effluent tank, sequentially connected along the wastewater flow direction. The effluent tank is connected to the coagulation zone via a return pipeline. A first online colorimeter for monitoring the inlet color value is installed on the inlet pipeline, and a second online colorimeter for monitoring the effluent color value is installed on the effluent tank. Both the first and second online colorimeters are connected to a DCS remote control system, which adjusts the return ratio of the return pipeline based on the monitored inlet and effluent color values. The treatment system and process of this invention have good treatment effects on phenol-containing wastewater from the petrochemical industry, achieving a removal rate of over 95% for suspended solids and asphaltenes, and a COD removal rate of over 10%.

This utility model discloses an optical performance calibration device suitable for an imaging luminance colorimeter, comprising: a mounting component, a moving component, and a calibration component. The moving component is disposed within the mounting component for adjusting the calibration interval, and the calibration component is disposed on the moving component for adjusting the height for calibration. The moving component includes a mounting frame, an imaging luminance colorimeter, a slide rail, a screw, a slider, a first gear, a mounting box, a round rod, a second gear, and a first motor. The mounting frame is disposed within the mounting component, and the imaging luminance colorimeter is fixedly mounted on the top of the mounting frame. The slide rail is disposed within the mounting component, the screw is rotatably mounted within the slide rail, and the slider is slidably mounted within the slide rail. The screw and the slider are threadedly connected. The optical performance calibration device for an imaging luminance colorimeter provided by this utility model has the advantages of rotational linkage, alignment calibration of the imaging luminance colorimeter at different distances, and convenient operation by personnel.

A color measurement apparatus to which a colorimeter that measures a color of a patch of a color measurement target is configured to be attached includes a support base that supports the color measurement target, a carriage that supports the colorimeter, a scanning mechanism portion that causes the carriage to perform scanning on the support base, and a control portion that controls the scanning mechanism portion, in which the carriage includes a support portion that has an opening portion that exposes a color measurement portion from the carriage in a state in which the colorimeter is supported, and a first measurement portion and a second measurement portion that are provided to interpose the opening portion, and the control portion specifies a position of the patch by measurement results of a measured portion by the first measurement portion and the second measurement portion.

This application relates to the field of textile visual inspection technology, and in particular to a method and system for detecting color deviation in whitening fabrics based on virtual target color calibration. The method includes acquiring sample images of multiple calibration samples under fixed imaging conditions and obtaining the true Lab value of a colorimeter for each calibration sample; performing fabric area extraction and color conversion processing on each sample image to obtain camera imaging Lab data; establishing a color mapping model based on the camera imaging Lab data and the true Lab value of the colorimeter; obtaining the true Lab value of the colorimeter corresponding to the target color reference and determining the virtual target color based on the color mapping model; acquiring online images of the whitening fabric to be tested and determining the camera imaging Lab data to be tested; and determining the color deviation direction, degree of color deviation, and detection result based on the camera imaging Lab data to be tested and the virtual target color. This application achieves stable detection results that can characterize the color deviation direction and degree of the fabric while balancing detection range and cost.

A colorimetry device includes a support base having a support surface for supporting a measurement target and a carriage to which a colorimeter is detachably attached and that is configured to move in a first direction, which is a direction along the support surface, and in a second direction, which is a direction along the support surface and which intersects the first direction, the colorimeter being configured to measure color of the measurement target, wherein the carriage includes, on an inner wall of an accommodation section that accommodates the colorimeter, a contact surface that is in contact with a side surface of the colorimeter when the colorimeter is attached or detached and a friction coefficient μ1 between the contact surface and the side surface of the colorimeter is smaller than a friction coefficient μ2 between the housing of the carriage and the side surface of the colorimeter.

This utility model relates to the field of color difference detection technology, and in particular to a solid powder color difference detection device. Addressing the problem that existing devices cannot effectively detect multiple solid powders simultaneously, thus affecting the efficiency of detection operations when performing multiple solid powder detection tasks, the following solution is proposed: It includes a main body; an outer frame rotatably mounted on the top of the main body; two hydraulic rods, Hydraulic Rod 1 and Hydraulic Rod 2, are fixedly installed inside the main body; a top rod is fixedly installed on Hydraulic Rod 1; a lifting rod is fixedly installed on Hydraulic Rod 2; an inner frame is rotatably mounted on the lifting rod; a housing is fixedly installed between Hydraulic Rod 1 and Hydraulic Rod 2; and a motor is fixedly installed inside the housing. This utility model allows for simultaneous detection of solid powders in four collection trays using multiple colorimeters, effectively increasing detection efficiency. Furthermore, the multiple collection trays can be operated independently, facilitating the recycling of solid powders.