CN110017899B - Apparatus for complex surface color detection system - Google Patents
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- CN110017899B CN110017899B CN201910240991.3A CN201910240991A CN110017899B CN 110017899 B CN110017899 B CN 110017899B CN 201910240991 A CN201910240991 A CN 201910240991A CN 110017899 B CN110017899 B CN 110017899B
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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Abstract
The device for the complex surface color detection system comprises an industrial camera, a color acquisition platform body, a computer and a data processing module, wherein the industrial camera is placed on a camera support frame, and the color acquisition platform body comprises a motor, a belt pulley, a slide rail, a slide block, a gear, a connecting rod, a transparent rod, a lighting body, an aluminum profile, a light diffusion plate, a gusset plate, black shading cloth, a camera support frame and a guide rail; and in the computer and the data processing module, color acquisition is carried out once on the formed color, corresponding grids after forming are compared according to the grids divided before the IMD diaphragm is formed, and color information in the corresponding grids is compared for detecting whether the surface color of the product meets the standard color requirement. The invention can accurately collect the color of the complex surface of the product, can collect the color on the complex surface and the color on the plane, has large color measuring area, can be operated by non-professional persons, improves the efficiency and has less manual control in the operation process.
Description
Technical Field
The invention relates to the field of color detection, in particular to a device for a complex surface color detection system.
Background
The pattern color on the surface of the product is an important component of the product. The color detection of the complex surface of the product is also one of the contents of the product detection. The device of the complex surface color detection system can accurately collect the pattern color of the complex surface of the product, can also quickly detect data mainly for detecting the pattern color of the complex surface of the product, has low price, can be generally operated by production personnel who do not train the color, and can not subjectively influence the color difference result of the product, so the device of the complex surface color detection system has higher practical application value.
The existing color detection system devices detect planar colors, and no special color detection device for detecting colors on complex surfaces exists. For example, chinese patent application No. CN106686374A discloses a method for detecting color saturation of a screen, and a detection device thereof is specifically for detecting the color saturation on the screen; the utility model discloses a chinese utility model patent that application number is CN203024866U discloses a detect color detection device of printing ink printing, the sample that awaits measuring is put on color detection device, the light source of light source portion shines out, shine the sample that awaits measuring through light source spotlight back light source, the staff can detect the proofreading at the colour effect under the light source of this colour temperature, the reverberation that the sample that awaits measuring produced simultaneously comes signal conversion processing part through light source portion and carries out signal conversion to reach and detect conclusion and data. The color detection device disclosed by the invention is specially used for detecting the color saturation of the screen, detects the color on a plane, cannot detect the color information of a complex surface, is complicated to operate, and has great operation difficulty for non-professionals; above-mentioned utility model patent detects for the printing ink color, and the reflected light that the detection mode produced for receiving ink for the receiving terminal detects the printing ink color through the computer, and what it detected also is the color on the plane, can't detect the color information on complicated surface, and its detection device part is more, and the cost is higher, and the operation is comparatively complicated.
Disclosure of Invention
In order to overcome the defects of more components, higher cost and more complex operation of the conventional color detection device, the invention provides the device for the complex surface color detection system, which not only can accurately acquire the planar color of a product, but also can detect the color on the complex surface of the product, meanwhile, the acquired complex surface color information can be subjected to standardized comparison with the planar standard color, whether the surface color of the product meets the standard color requirement is detected, the color measurement area is large, and meanwhile, the device is simple and easy to operate.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the device for the complex surface color detection system comprises an industrial camera, a color acquisition platform main body, a computer and a data processing module, wherein the industrial camera is placed on a camera support frame;
the color acquisition platform main body comprises a motor, a belt pulley, a sliding rail, a sliding block, a gear, a connecting rod, a transparent rod, a lighting body, an aluminum profile, a light diffusion plate, a gusset plate, black shading cloth, a camera support frame and a guide rail; the camera support frame is connected with the sliding block through a belt pulley and a motor, and the vertical height of the camera support frame is adjusted through the motor; the light-diffusing plate is connected with the transparent slender rod, the transparent slender rod is connected with the sliding rail through a motor and a sliding block, and the light-diffusing plate is controlled to rotate on the vertical surface in a small range through the motor; the product to be detected is positioned in the center of the light diffusion plate, the illuminator is fixed on the mounting bracket through the gusset plate in the light transmission experiment, the camera is placed on the camera support frame, and the black shading cloth wraps the mounting bracket;
in the computer and the data processing module, color acquisition is carried out once on the formed color, corresponding grids after forming are compared according to the grids divided before the IMD diaphragm is formed, and color information in the corresponding grids is compared for detecting whether the surface color of the product meets the standard color requirement.
Further, the aluminum profile is used for constructing a support of the color acquisition platform main body with the length of 78cm, the width of 65cm and the height of 110cm through gusset plates.
Furthermore, the motor and the sliding blocks are connected with 4 sliding blocks through two connecting rods, so that the movement in the X-axis and Y-axis directions can be realized; the 4 sliding blocks realize the movement in the X-axis direction and the Y-axis direction through 4 belt pulleys; the 4 belt pulleys are connected with the motors through gears, and the rotation in the X-axis direction and the Y-axis direction is realized by driving the two motors.
The light diffusion plate is connected with the transparent thin rod and placed at a position with the height of 52 cm; the transparent slender rod is connected with the sliding rail through a motor and a sliding block, the light-diffusing plate is controlled to rotate on the vertical surface in a small range through a driving motor, and meanwhile the driving motor controls the plane of the light-diffusing plate to rotate around the Z axis.
The illuminating body is placed at the position with the height of 20cm through the gusset plate in a light transmission experiment, and the positions are respectively arranged at the front, the back, the left and the right; the illuminating bodies were placed at a height of 70cm in a reflection experiment through gussets, one at each of the front, rear, left, and right sides.
Furthermore, in the computer and the data processing module, when the surface color of the product is collected, the device can perform a light transmission experiment and a reflection experiment in consideration of the influence of light source irradiation on the surface ink color of the product. In a reflection experiment, a camera is placed on a camera support frame, the camera support frame is positioned above the surface of a product, four illuminators are positioned around a diffusion plate and are positioned at a position with a height of 70cm, an included angle of about 45 degrees is formed between an illumination light source and the product to be measured, the surface of the product to be measured is positioned on a white balance plate, a computer can control a motor to change the plane angle of the diffusion plate and the surface position of the product to be measured, and can control the motor to change the positions of the camera on a horizontal plane and a vertical plane and control the motor to change the lens angle of the camera (so that the camera can shoot the surface of the product to be measured), when the complex surface of the product is measured, all parameters of the camera need to be determined, the surface of the product is subjected to grid division and all grid central points are determined according to the aperture and the depth, the curvature is large, the corresponding depth of field is also large, the corresponding grid is small), the computer calculates a color acquisition measurement strategy according to the camera parameters and the grid information on the surface of the product to be detected, the control system obtains control data from the computer to control the motor to change the position of the camera on the horizontal plane and the vertical plane, and simultaneously controls the motor to change the angle of the plane of the light diffusion plate, so that the optical axis of the camera is aligned to the grid central point of the area to be detected (the optical axis and the normal line of the area to be detected can form a certain angle), the color of the complex surface of the product to be detected can be acquired, and black. The camera can be connected to the smart phone through a wireless mode, the camera is controlled through the smart phone to shoot continuously, the color of the complex surface of the product to be detected is collected (the camera is prevented from vibrating when a user presses a shutter, so that the color collection of the complex surface of the product is influenced), the camera can also be connected with a computer through a data line, and collected pictures are transmitted into the computer through the data line. The computer retrieves the picture color data from the camera and performs further analysis processing.
In the light transmission experiment, four illuminants are positioned around a light diffusion plate and are placed at the position with the height of 20cm, an included angle of about 45 degrees is formed between an illumination light source and the light diffusion plate at the position with the position 32cm below the light diffusion plate, the surface of a product to be detected is placed on a white balance plate, a computer can control a motor to change the plane angle of the light diffusion plate and the surface position of the product to be detected through a control system, and simultaneously can control the motor to change the positions of a camera on a horizontal plane and a vertical plane and control the motor to change the lens angle of the camera (so that the camera can shoot the surface of the product to be detected), when the complex surface of the product is measured, all parameters of the camera need to be determined, the surface of the product is subjected to grid division and all grid central points are determined according to the aperture and the depth of field of the camera (when the surface is subjected, the corresponding grids are small), the computer calculates a color acquisition measurement strategy according to camera parameters and grid information on the surface of a product to be detected, the computer controls the motor to change the position of the camera on the horizontal plane and the vertical plane through the control system, and simultaneously controls the motor to change the angle of the plane of the light scattering plate, so that the optical axis of the camera is aligned to the grid central point of the area to be detected (the optical axis and the normal line of the area to be detected can form a certain angle), the color of the complex surface of the product to be detected is acquired, and black shading cloth (which is used for reducing background light). The camera can be connected to the smart phone through a wireless mode, the camera is controlled through the smart phone to shoot continuously, the color of the complex surface of the product to be detected is collected (the camera is prevented from vibrating when a user presses a shutter, so that the color collection of the complex surface of the product is influenced), the camera can also be connected with a computer through a data line, and collected pictures are transmitted into the computer through the data line. The computer retrieves the picture color data from the camera and performs further analysis.
The invention has the following beneficial effects: can be accurate must gather the color on the complicated surface of product or the plane, the color information that the complicated surface was gathered can be with the standard color of plane and do standardized contrast, detect whether product surface color reaches standard color requirement, and the color measurement area is big, and non-professional person can operate generally, can effectively reduce cost in business, improves work efficiency.
Drawings
FIG. 1 is a schematic diagram of the subject matter of an apparatus for a complex surface color detection system.
Fig. 2 is a schematic view of a camera support stand and motor.
Fig. 3 is a schematic diagram of the principle of detecting the surface of a product.
FIG. 4 is a schematic diagram of the main body of the device equipped with black cloth for complex surface color detection system.
FIG. 5 is a schematic diagram of an arrangement of a complex surface color detection system.
In the figure, 1-aluminum section bar, 2-connecting rod, 3-sliding block, 4-motor and sliding block assembly parts, 5-illuminator, 6-gear, 7-belt pulley, 8-motor, 9-camera supporting frame, 10-gusset plate, 11-camera, 12-light diffusion plate, 13-transparent rod, 14-motor and sliding block assembly parts, 15-sliding rail, 16-product to be tested, 17-black shading cloth, 18-computer and data processing module, 19-curved surface normal, 20-optical axis, 21-grid and 22-grid central point.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 5, the apparatus for a complex surface color detection system includes an industrial camera, a color collection platform main body, a computer and a data processing module, wherein the industrial camera is placed on a camera support frame, and forms a whole complex surface color collection apparatus with the color collection platform main body.
The color acquisition platform main part comprises a motor, a belt pulley, a sliding rail, a sliding block, a gear, a connecting rod, a transparent rod, a lighting body, an aluminum profile, a light diffusion plate, a gusset plate, black shading cloth, a camera support frame, a product to be detected, a guide rail and a computer.
The color acquisition platform body with the length of 78cm, the width of 65cm and the height of 110cm is constructed by the aluminum profile through the gusset plates; the camera support frame is connected with the sliding block through a belt pulley and a motor, and the vertical height of the camera support frame can be adjusted by controlling the motor through a computer; the motor and the sliding blocks are connected with the 4 sliding blocks through the two connecting rods, so that the movement in the X-axis direction and the Y-axis direction can be realized; the 4 sliding blocks realize the movement in the X-axis direction and the Y-axis direction through 4 belt pulleys; the 4 belt pulleys are connected with the motors through gears, and the two motors can be controlled by a computer to realize the rotation in the X-axis and Y-axis directions; the light diffusion plate is connected with the transparent thin rod and placed at a position with the height of 52 cm; the transparent slender rod is connected with the sliding rail through a motor and a sliding block, the computer can drive the motor to control the light-diffusing plate to rotate on the vertical plane in a small range, and meanwhile, the motor is driven to control the plane of the light-diffusing plate to rotate around the Z axis; the product to be tested is fastened at the center of the light-diffusing plate; the illuminating bodies are placed at the positions with the height of 20cm through the gusset plates in a light transmission experiment, and the positions are respectively one (four in total) on the front, back, left and right sides; the illuminators were placed at a height of 70cm in the reflection experiment through gussets, one at each of the front, back, left, and right (four in total).
The camera is placed on the camera support, and the black shading cloth wraps the whole color acquisition platform main body.
When the device is used for the complex surface color detection device to collect the surface color of the product, the device can perform a light transmission experiment and a reflection experiment in consideration of the influence of light source irradiation on the surface ink color of the product. In a reflection experiment, a camera is placed on a camera support frame, the camera support frame is positioned above the surface of a product, four illuminators are positioned around a diffusion plate and are positioned at a position with a height of 70cm, an included angle of about 45 degrees is formed between an illumination light source and the product to be measured, the surface of the product to be measured is positioned on a white balance plate, a computer can control a motor to change the plane angle of the diffusion plate and the surface position of the product to be measured, and can control the motor to change the positions of the camera on a horizontal plane and a vertical plane and control the motor to change the lens angle of the camera (so that the camera can shoot the surface of the product to be measured), when the complex surface of the product is measured, all parameters of the camera need to be determined, the surface of the product is subjected to grid division and all grid central points are determined according to the aperture and the depth, the curvature is large, the corresponding depth of field is also large, the corresponding grid is small), the computer calculates a color acquisition measurement strategy according to camera parameters and grid information on the surface of a product to be detected, the computer controls the motor to change the position of the camera on the horizontal plane and the vertical plane through the control system, and simultaneously controls the motor to change the angle of the plane of the light scattering plate, so that the optical axis of the camera is aligned to the grid central point of the area to be detected (the optical axis and the normal line of the area to be detected can form a certain angle), the color of the complex surface of the product to be detected can be acquired, and black shading cloth (which is. The camera can be connected to the smart phone through a wireless mode, the camera is controlled through the smart phone to shoot continuously, the color of the complex surface of the product to be detected is collected (the camera is prevented from vibrating when a user presses a shutter, so that the color collection of the complex surface of the product is influenced), the camera can also be connected with a computer through a data line, and collected pictures are transmitted into the computer through the data line. The computer retrieves the picture color data from the camera and performs further analysis.
In the light transmission experiment, four illuminants are positioned around a light diffusion plate and are placed at the position with the height of 20cm, an included angle of about 45 degrees is formed between an illumination light source and the light diffusion plate at the position with the height of 32cm below the light diffusion plate, the surface of a product to be measured is placed on a white balance plate, a computer can control a motor to change the plane angle of the light diffusion plate and the surface position of the product to be measured, and simultaneously can control the motor to change the positions of a camera on a horizontal plane and a vertical plane and control the motor to change the lens angle of the camera (so that the camera can shoot the surface of the product to be measured), when the complex surface of the product is measured, all parameters of the camera need to be determined, the surface of the product is subjected to grid division and all grid central points are determined according to the aperture and the depth of field of the camera (when the curved surface is subjected to grid division, the, the computer calculates a color acquisition and measurement strategy according to camera parameters and the surface grid information of the product to be detected, controls the motor to change the positions of the camera on the horizontal plane and the vertical plane through the control system, and simultaneously controls the motor to change the angle of the plane of the light scattering plate, so that the optical axis of the camera is aligned to the grid central point of the area to be detected (the optical axis and the normal line of the area to be detected can form a certain angle) to acquire the color of the complex surface of the product to be detected, and black shading cloth (which is used for reducing background light) is covered. The camera can be connected to the smart phone through a wireless mode, the camera is controlled through the smart phone to shoot continuously, the color of the complex surface of the product to be detected is collected (the camera is prevented from vibrating when a user presses a shutter, so that the color collection of the complex surface of the product is influenced), the camera can also be connected with a computer through a data line, and collected pictures are transmitted into the computer through the data line. The computer retrieves the picture color data from the camera and performs further analysis.
In the computer and the data processing module, aiming at the change of colors before and after the IMD film forming, the detection device can be adopted to collect the colors once after the forming, and the color information in the corresponding grids can be compared according to the grids divided before the IMD film forming and the corresponding grids after the forming, so that whether the surface colors of the product meet the standard color requirements can be detected.
The scheme of this embodiment can comparatively accurate must gather the complicated surface color of product, can gather the color on complicated surface and the plane, and color measurement area is big, and non-professional also can operate, raises the efficiency, and artificial control is less in operation process.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.
Claims (10)
1. The device is used for a complex surface color detection system and is characterized by comprising an industrial camera, a color acquisition platform body, a computer and a data processing module, wherein the industrial camera is placed on a camera support frame;
the color acquisition platform main body comprises a first motor, a second motor, a belt pulley, a sliding rail, a first sliding block, a second sliding block, a gear, a connecting rod, a transparent rod, a lighting body, an aluminum profile, a light diffusion plate, a gusset plate, black shading cloth, a camera support frame and a guide rail; the camera support frame is connected with the first sliding block through a belt pulley and a first motor, and the vertical height of the camera support frame is adjusted through the first motor; the light-diffusing plate is connected with the transparent thin rod, the transparent thin rod is connected with the sliding rail through a second motor and a second sliding block, and the light-diffusing plate is controlled to rotate on the vertical surface in a small range through the second motor; the product to be detected is positioned in the center of the light diffusion plate, the illuminator is fixed on the mounting bracket through the gusset plate in the light transmission experiment, the camera is placed on the camera support frame, and the black shading cloth wraps the mounting bracket;
in the computer and data processing module, color acquisition is carried out once on the formed color, corresponding grids after forming are compared according to the grids divided before the IMD membrane is formed, and color information in the corresponding grids is compared for detecting whether the surface color of the product meets the standard color requirement or not;
determining parameters of a camera, performing mesh division on the surface of a product and determining center points of the meshes according to the aperture and the depth of field of the camera, paying attention to the size of the meshes when performing mesh division on a curved surface, dividing the meshes according to the maximum depth of field of the camera, wherein the curvature is large, the corresponding depth of field is also large, the corresponding meshes are small, and a computer calculates a color acquisition measurement strategy according to the parameters of the camera and the mesh information of the surface of the product to be measured;
the computer controls the first motor to change the position of the camera on the horizontal plane and the vertical plane through the control system, and controls the second motor to change the angle of the plane of the light scattering plate, so that the optical axis of the camera is aligned with the central point of the grid of the area to be measured.
2. The apparatus for a complex surface color detection system according to claim 1, wherein the aluminum profile forms a support of the color acquisition platform body with a length of 78cm, a width of 65cm and a height of 110cm by gusset plates.
3. The apparatus for a complex surface color sensing system according to claim 1 or 2, wherein the first motor and the first slider are connected to 4 sliders by two connecting rods to realize the movement in the X-axis and Y-axis directions; the 4 sliding blocks realize the movement in the X-axis direction and the Y-axis direction through 4 belt pulleys; the 4 belt pulleys are connected with the motors through gears, and the rotation in the X-axis direction and the Y-axis direction is realized by driving the two motors.
4. The apparatus for a complex surface color detection system according to claim 1 or 2, wherein the light-diffusing plate is connected to the transparent thin rod and placed at a height of 52 cm; the transparent slender rod is connected with the sliding rail through a second motor and a second sliding block, the second motor is driven to control the light-diffusing plate to rotate on the vertical plane in a small range, and meanwhile the second motor is driven to control the plane of the light-diffusing plate to rotate around the Z axis.
5. An apparatus for a complex surface color detection system according to claim 1 or 2, wherein said illuminating body is placed at a height of 20cm in a light transmission experiment through a gusset plate, one on each of front, rear, left and right sides; the illuminating bodies were placed at a height of 70cm in a reflection experiment through gussets, one at each of the front, rear, left, and right sides.
6. The apparatus for detecting the color of a complex surface according to claim 1 or 2, wherein the computer and the data processing module are configured to perform the transmittance experiment and the reflectance experiment in consideration of the influence of the light source irradiation on the color of the ink on the surface of the product when acquiring the color of the surface of the product.
7. The apparatus of claim 6, wherein in the reflection test, the camera support is located above the surface of the product, the four illuminators are located around the diffuser and at a height of 70cm, the illumination source is at an angle of about 45 ° with respect to the product to be measured, the surface of the product to be measured is placed on the white balance plate, the second motor is controlled to change the plane angle of the diffuser and the surface position of the product to be measured, the first motor is controlled to change the position of the camera on the horizontal plane and the vertical plane and the first motor is controlled to change the angle of the lens of the camera, so that the camera can photograph the surface of the product to be measured, when measuring the complex surface of the product, the parameters of the camera are determined, the surface of the product is gridded and the center points of each grid are determined according to the aperture and depth of field of the camera, the color collection measurement strategy is calculated according to the parameters of the camera and the gridding, the control system obtains control data from the computer to control the first motor to change the position of the camera on the horizontal plane and the vertical plane, and simultaneously control the second motor to change the angle of the plane of the light scattering plate, so that the optical axis of the camera is aligned with the central point of the grid of the area to be detected, the color of the complex surface of the product to be detected can be collected, and black shading cloth is covered on the periphery of the product to be detected.
8. The apparatus of claim 7, wherein the camera is connected to a smart phone wirelessly, the camera is controlled by the smart phone to continuously capture the color of the complex surface of the product to be tested, the camera is connected to the computer through a data line, the captured image is transmitted to the computer through the data line, and the computer retrieves the image color data from the camera and performs further analysis processing.
9. The apparatus of claim 6, wherein in the light transmittance experiment, four illuminators are disposed around the diffuser plate at a height of 20cm, and at a position 32cm below the diffuser plate, the illumination source and the diffuser plate form an included angle of about 45 °, the surface of the product to be measured is disposed on the white balance plate, the computer controls the second motor to change the plane angle of the diffuser plate and the surface position of the product to be measured through the control system, and controls the first motor to change the position of the camera on the horizontal plane and the vertical plane and the lens angle of the camera through the control system, so that the camera can photograph the surface of the product to be measured, and when measuring the complex surface of the product, the parameters of the camera need to be determined, the surface of the product is gridded and the center points of each grid are determined according to the aperture and depth of field of the camera, and the computer calculates the color collection and measurement strategy according to the parameters of the camera and the grid information of the surface of the product to be, the computer controls the first motor to change the position of the camera on the horizontal plane and the vertical plane through the control system, and simultaneously controls the second motor to change the angle of the plane of the light scattering plate, so that the optical axis of the camera is aligned to the central point of the grid of the area to be measured, the color of the complex surface of the product to be measured can be collected conveniently, and black shading cloth is covered on the periphery of the product to be measured.
10. The apparatus of claim 9, wherein the camera is connected to a smart phone wirelessly, the camera is controlled by the smart phone to continuously capture the color of the complex surface of the product to be tested, the camera is connected to the computer through a data line, the captured image is transmitted to the computer through the data line, and the computer retrieves the image color data from the camera and performs further analysis processing.
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| CN110044477B (en) * | 2019-04-24 | 2021-05-18 | 中国人民解放军战略支援部队航天工程大学 | Photometric data searching method with similar space observation geometric change rule |
| CN112284524B (en) * | 2020-11-04 | 2023-06-30 | 凯盛光伏材料有限公司 | Object carrying displacement device for uniformity test of photovoltaic simulator |
| CN112345471A (en) * | 2020-11-10 | 2021-02-09 | 深圳拓匠印前科技有限公司 | Hand-held intelligent color measuring instrument |
| CN112964362B (en) * | 2021-03-16 | 2022-11-18 | 浙江蓝谷生命科技有限公司 | Detection apparatus for be used for detecting object surface color based on spectrum appearance |
| CN114659758B (en) * | 2022-03-28 | 2024-02-27 | 武汉精立电子技术有限公司 | VR glasses check out test set |
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| CN101221073A (en) * | 2008-01-08 | 2008-07-16 | 北京大学 | Multifunctional color measuring and viewing system |
| CN104316189A (en) * | 2014-11-03 | 2015-01-28 | 苏州精创光学仪器有限公司 | Online measuring method for color and reflectivity of glass |
| CN208187551U (en) * | 2018-05-07 | 2018-12-04 | 北京大恒图像视觉有限公司 | A kind of printed matter Color Detecting System based on spectrum |
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