A color experiment device and a color imaging system having the same

Abstract

The present application provides a color experiment device and a color imaging system with the device. The device comprises a housing part, a light source part, a light path part, a standard colorimeter and a color imaging probe; the light source part comprises a three-color light source and a three-color light source entrance arranged on the housing part; the light path part is arranged inside the housing part, and is used for mixing the three-color light source and separating the mixed light to obtain a first part of light and a second part of light; the standard colorimeter is arranged at a first position of the housing part, and is used for obtaining the first part of light and determining a first chromaticity coordinate for representing the color of the first part of light based on the first part of light; the color imaging probe is arranged at a second position of the housing part, and is used for obtaining the second part of light and determining a second chromaticity coordinate for representing the color of the second part of light based on the second part of light; and a chromaticity conversion parameter between the second chromaticity coordinate and the first chromaticity coordinate is used for correcting the detection imaging result of the color imaging probe. The system comprises the color experiment device.

Description

Technical Field

[0001] This invention belongs to the field of electron microscopy technology, specifically relating to a color experimental apparatus and a color imaging system having the apparatus. Background Technology

[0002] A scanning electron microscope (SEM) utilizes electron imaging, similar to how optical microscopes use visible light for imaging. Because the wavelength of electrons is much shorter than the wavelength of light, the resolution of an electron microscope is higher than that of an optical microscope. It has become a powerful and versatile tool for materials characterization, widely used in materials science, metallurgy, mineralogy, and biology. The main components of an SEM are: an electron optics system, a signal collection and processing system, an image display and recording system, a vacuum system, and a power and control system. The working principle of an SEM is that it bombards the sample surface with a finely focused electron beam. Through the interaction between electrons and the sample, different signals are generated, including cathodoluminescence, secondary electrons, and backscattered electrons. These different signals characterize different morphological features of the sample, allowing for the observation and analysis of the sample surface or fracture morphology.

[0003] Cathodoluminescence (CL) is one of the many signals generated when an electron beam bombards a sample surface. It is produced by electron transitions at band gaps or defect sites caused by the electron beam, resulting in the emission of ultraviolet, visible, or infrared light. By mounting a cathodoluminescence probe on a scanning electron microscope (SEM), combining cathodoluminescence with the SEM, nanometer-level spatial resolution can be achieved due to the extremely small electron beam spot. Typically, after the cathodoluminescence probe acquires the signal, it is displayed as a grayscale image in the software. Different grayscale levels in the image reflect both the brightness variations of the sample and the signal intensity variations. However, cathodoluminescence grayscale images only reflect signal intensity variations and do not reflect the emission wavelength information of the sample.

[0004] Users in the geological field have further needs in cathodoluminescence imaging. When observing geological samples, they not only want to observe the light and dark information of the samples but also the color information corresponding to the emission wavelengths, i.e., color imaging. Color imaging plays an important role in mineral analysis, indicating changes in mineral composition and facilitating the observation of chemical imprints and growth zoning. It provides new assistance in oil and gas exploration, geological geochronology analysis, and mineral growth research.

[0005] However, in existing technologies, the color coordinates of the cathodoluminescence signal after conversion are generally obtained in the CIE-XYZ (color system) space, which cannot produce a true RGB color image (a color standard in the industry). Therefore, a color calibration device is required for calibration. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by providing a color experimental apparatus and a color imaging system having the apparatus.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a color experimental device, comprising: a housing, a light source, an optical path, a standard colorimeter, and a color imaging probe; wherein, the light source includes a tri-color light source and a tri-color light source inlet disposed on the housing; the tri-color light source inlet is used to allow the tri-color light source to enter the interior of the housing; the optical path is disposed inside the housing; the optical path is used to mix the tri-color light source and separate the mixed light to obtain a first part of light and a second part of light; the standard colorimeter is disposed at a first position on the housing away from the tri-color light source inlet; the standard colorimeter is used to acquire the first part of light and determine a first chromaticity coordinate based on the first part of light to characterize the color of the first part of light; the color imaging probe is disposed at a second position on the housing away from the tri-color light source inlet, different from the first position; the color imaging probe is used to acquire the second part of light and determine a second chromaticity coordinate based on the second part of light to characterize the color of the second part of light; the chromaticity conversion parameter between the second chromaticity coordinate and the first chromaticity coordinate is used to correct the detection imaging result of the color imaging probe.

[0008] In one specific embodiment, the optical path section includes: a first optical path channel, a first beam splitter, a second beam splitter, and a third beam splitter; wherein, the first optical path channel is disposed inside the housing section along a first longitudinal axis of the housing section; the first beam splitter, the second beam splitter, and the third beam splitter are disposed inside the housing section and spaced apart along the first optical path channel; the first beam splitter and the second beam splitter together are used to mix the three-color light source entering the housing section, and the third beam splitter is used to separate the mixed light.

[0009] In one specific embodiment, the optical path section includes a first plano-convex lens disposed inside the housing section and arranged along the first optical path channel, the first plano-convex lens being disposed between the second beam splitter and the third beam splitter.

[0010] In one specific embodiment, the three-color light source inlet includes: a first color light source inlet, a second color light source inlet, and a third color light source inlet. The first beam splitter is disposed near the first color light source inlet and the second color light source inlet. The first beam splitter is used to mix the first color light source entering the interior of the housing through the first color light source inlet and the second color light source entering the interior of the housing through the second color light source inlet.

[0011] In one specific embodiment, the second beam splitter is disposed near the entrance of the third color light source and between the first beam splitter and the first plano-convex lens. The second beam splitter is used to mix the third color light source that enters the interior of the housing through the third color light source entrance with the mixed first color light source and the second color light source.

[0012] In one specific embodiment, the first color light source inlet is arranged along the first longitudinal axis of the housing portion, the second color light source inlet is arranged along the first transverse axis of the housing portion, and the third color light source inlet is arranged along the second transverse axis of the housing portion.

[0013] In one specific embodiment, both the second color light source inlet and the third color light source inlet are located on the first side of the housing portion.

[0014] In one specific embodiment, the optical path section includes a first light-diffusing film disposed inside the housing section and arranged along the first optical path channel, the first light-diffusing film being disposed between the third beam splitter and the standard colorimeter.

[0015] In one specific embodiment, the standard colorimeter is arranged along the first longitudinal axis of the housing portion.

[0016] In one specific embodiment, the optical path section further includes a second light-diffusing film disposed inside the housing section and arranged along the first optical path channel, the second light-diffusing film being disposed between the third beam splitter and the color imaging probe.

[0017] In one specific embodiment, the color imaging probe is arranged along the third transverse axis.

[0018] In one specific embodiment, the color imaging probe is disposed on the second side of the housing portion.

[0019] In one specific embodiment, the three-color light source inlet includes a light source inlet for the first color light source, the second color light source, and the third color light source to enter the interior of the housing portion together, and the light source inlet is arranged along the second longitudinal axis of the housing portion.

[0020] In one specific embodiment, the optical path section includes: a second optical path channel and a fourth beam splitter; wherein, the second optical path channel is disposed inside the housing section along a second longitudinal axis of the housing section; the second optical path channel is used to mix the first color light source, the second color light source, and the third color light source that enter the housing section through the light source inlet; the fourth beam splitter is disposed inside the housing section and along the second optical path channel; the fourth beam splitter is used to separate the mixed light.

[0021] In one specific embodiment, the optical path section includes a second plano-convex lens disposed inside the housing section and arranged along the second optical path channel, the second plano-convex lens being disposed between the light source inlet and the fourth beam splitter.

[0022] In one specific embodiment, the optical path section includes a third light-diffusing film disposed inside the housing section and arranged along the second optical path channel, the third light-diffusing film being disposed between the fourth beam splitter and the standard colorimeter.

[0023] In one specific embodiment, the standard colorimeter is arranged along the second longitudinal axis of the housing portion.

[0024] In one specific embodiment, the optical path section further includes a fourth light-diffusing film disposed inside the housing section and arranged along the second optical path channel, the fourth light-diffusing film being disposed between the fourth beam splitter and the color imaging probe.

[0025] In one specific embodiment, the color imaging probe is arranged along the fourth transverse axis.

[0026] In one specific embodiment, the tri-color light source includes red, green, and blue primary color light sources.

[0027] In one specific embodiment, the chromaticity conversion parameters include a conversion matrix and / or coordinate conversion coefficients.

[0028] A color imaging system, including the aforementioned color experimental apparatus.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. The standard colorimeter of the color experimental device of the present invention determines the first chromaticity coordinates based on the first part of the light, and the color imaging probe determines the second chromaticity coordinates based on the second part of the light. The chromaticity conversion parameters between the second chromaticity coordinates and the first chromaticity coordinates can be used to correct the detection and imaging results of the color imaging probe, thereby obtaining a true RGB color image. This makes the color finally synthesized by the color imaging probe conform to the true emission wavelength. It is simple, efficient, accurate, reliable, and quick.

[0031] 2. The color experimental device of the present invention is provided with a first beam splitter and a second beam splitter, which enables the three color light sources entering the housing through the first color light source inlet, the second color light source inlet and the third color light source inlet to be uniformly mixed.

[0032] 3. The color experimental device of the present invention is provided with a second optical path channel, which enables the three-color light sources entering the housing through the light source inlet to be mixed uniformly.

[0033] 4. The color experimental device of the present invention is equipped with a third beam splitter and a fourth beam splitter. Both the third beam splitter and the fourth beam splitter can split the mixed light to the standard colorimeter and the color imaging probe, which is simple, efficient, accurate and reliable.

[0034] 5. The color experimental device of the present invention is provided with a first plano-convex lens and a second plano-convex lens. Both the first plano-convex lens and the second plano-convex lens can collimate the mixed light and turn it into parallel light, and the collimation effect is good, which makes it easier for the corresponding parallel light to be separated by the third beam splitter or the fourth beam splitter.

[0035] 6. The color experimental device of the present invention is provided with a first light-diffusing film and a second light-diffusing film. The first light-diffusing film can make the first part of the light entering the standard colorimeter after being separated by the third beam splitter more uniform, and the second light-diffusing film can make the second part of the light entering the color imaging probe after being separated by the third beam splitter more uniform.

[0036] 7. The color experimental device of the present invention is provided with a third light-diffusing film and a fourth light-diffusing film. The third light-diffusing film can make the first part of the light entering the standard colorimeter after being separated by the fourth beam splitter more uniform, and the fourth light-diffusing film can make the second part of the light entering the color imaging probe after being separated by the fourth beam splitter more uniform.

[0037] 8. The color experimental device of the present invention has a simple structure, is easy to use, and has a wide range of applications. Attached Figure Description

[0038] Figure 1 A schematic diagram of the structure of a specific embodiment of the color experimental apparatus of the present invention is shown from a first angle;

[0039] Figure 2 A second-angle structural schematic diagram of a specific embodiment of the color experimental apparatus of the present invention is shown;

[0040] Figure 3 A cross-sectional schematic diagram of a specific embodiment of the color experimental apparatus of the present invention is shown;

[0041] Figure 4A schematic diagram of the structure of the color experimental apparatus of the present invention from a first angle is shown in another specific embodiment.

[0042] Figure 5 A second-angle structural schematic diagram of another specific embodiment of the color experimental apparatus of the present invention is shown;

[0043] Figure 6 A cross-sectional schematic diagram of another specific embodiment of the color experimental apparatus of the present invention is shown.

[0044] Among them, 10-housing part; 101-first side; 102-second side; 20-light source part; 201-first color light source inlet; 202-second color light source inlet; 203-third color light source inlet; 204-fourth color light source inlet; 30-optical path part; 301-first optical path channel; 302-first beam splitter; 303-second beam splitter; 304-third beam splitter; 305-first plano-convex lens; 306-first homogenizing film; 307-second homogenizing film; 308-second optical path channel; 309-fourth beam splitter; 310-second plano-convex lens; 311-third homogenizing film; 312-fourth homogenizing film; 40-standard colorimeter; 50-color imaging probe. Detailed Implementation

[0045] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0046] The directional terms used in this invention, such as "inner," "longitudinal," and "lateral," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustrating and understanding this invention, and not for limiting it.

[0047] like Figures 1-6 As shown, the color experimental apparatus of the present invention includes: a housing 10, a light source 20, an optical path 30, a standard colorimeter 40, and a color imaging probe 50. Among them,

[0048] The light source unit 20 includes a tri-color light source and a tri-color light source inlet provided on the housing unit 10. The tri-color light source inlet is used to allow the tri-color light source to enter the interior of the housing unit 10.

[0049] The optical path section 30 is disposed inside the housing section 10. The optical path section 30 is used to mix the three-color light sources and separate the mixed light to obtain a first part of light and a second part of light.

[0050] A standard colorimeter 40 is disposed at a first position away from the entrance of the tri-color light source in the housing 10. The standard colorimeter is used to acquire a first portion of light (transmitted light) and determine a first chromaticity coordinate to characterize the color of the first portion of light based on the first portion of light.

[0051] The color imaging probe 50 is positioned at a second location on the housing 10, away from the entrance of the three-color light source, different from the first location. The color imaging probe is used to acquire a second portion of light (reflected light) and determine second chromaticity coordinates to characterize the color of the second portion of light based on this second portion of light. A chromaticity conversion parameter between the second chromaticity coordinates and the first chromaticity coordinates is used to correct the detection and imaging results of the color imaging probe.

[0052] Given three-color light sources, the optical path unit 30 mixes the three colors and separates the mixed light to obtain a first part of light and a second part of light with the same illuminance and color coordinates. The first part of light is acquired by a standard colorimeter, and the second part of light is acquired by a color imaging probe. The standard colorimeter determines the first chromaticity coordinates (standard values) representing the color of the first part of light based on the first part of light. The color imaging probe determines the second chromaticity coordinates (actual acquired values) representing the color of the second part of light based on the second part of light. The chromaticity conversion parameter (calibration coefficient) between the second and first chromaticity coordinates can be used to correct the detection and imaging results of the color imaging probe, thereby obtaining a true RGB color image. This ensures that the color synthesized by the color imaging probe conforms to the true emission wavelength band, and is simple, efficient, accurate, reliable, and time-saving.

[0053] In a specific embodiment, such as Figure 3 As shown, the optical path section 30 includes: a first optical path channel 301, a first beam splitter 302, a second beam splitter 303, and a third beam splitter 304. Among them,

[0054] The first optical path channel 301 is disposed inside the housing portion 10 along the first longitudinal axis of the housing portion 10.

[0055] A first beam splitter 302, a second beam splitter 303, and a third beam splitter 304 are disposed inside the housing portion 10 and arranged at intervals along the first optical path channel 301. The first beam splitter 302 and the second beam splitter 303 together mix the three-color light sources entering the housing portion 10. The third beam splitter 304 separates the mixed light. The first beam splitter 302 and the second beam splitter 303 enable uniform mixing of the three-color light sources, while the third beam splitter 304 separates the mixed light, facilitating the acquisition of the separated light by a standard colorimeter and a color imaging probe.

[0056] In a specific embodiment, such as Figure 3As shown, the optical path section 30 includes a first plano-convex lens 305 disposed inside the housing section 10 and arranged along the first optical path channel 301. The first plano-convex lens 305 is disposed between the second beam splitter 303 and the third beam splitter 304. The first plano-convex lens 305 can collimate the mixed light and turn it into parallel light with good collimation effect, thereby facilitating the separation of parallel light by the third beam splitter 304.

[0057] In a specific embodiment, such as Figures 1-3 As shown, the three-color light source inlets include: a first-color light source inlet 201, a second-color light source inlet 202, and a third-color light source inlet 203. A first beam splitter 302 is positioned near the first-color light source inlet 201 and the second-color light source inlet 202. The first beam splitter 302 is used to mix the first-color light source entering the housing portion 10 through the first-color light source inlet 201 and the second-color light source entering the housing portion 10 through the second-color light source inlet 202. The first beam splitter 302 enables uniform mixing of the first-color light source and the second-color light source.

[0058] In a specific embodiment, such as Figure 1 , Figure 3 As shown, the second beam splitter 303 is positioned near the third color light source inlet 203 and between the first beam splitter 302 and the first plano-convex lens 305. The second beam splitter 303 is used to mix the third color light source entering the housing portion 10 through the third color light source inlet 203 with the mixed first and second color light sources. The second beam splitter 303 enables uniform mixing of the third color light source with the mixed first and second color light sources.

[0059] In a specific embodiment, such as Figure 1 , Figure 3 As shown, the first color light source inlet 201 is arranged along the longitudinal axis of the housing portion 10, the second color light source inlet 202 is arranged along the first transverse axis of the housing portion 10, and the third color light source inlet 203 is arranged along the second transverse axis of the housing portion 10, which facilitates the entry of the three color light sources and their thorough and uniform mixing.

[0060] In a specific embodiment, such as Figures 1-3 As shown, the second color light source inlet 202 and the third color light source inlet 203 are both provided on the first side 101 of the housing portion 10, which facilitates the entry and mixing of the second color light source and the third color light source.

[0061] In a specific embodiment, such as Figure 3As shown, the optical path section 30 includes a first light-diffusing film 306 disposed inside the housing section 10 and arranged along the first optical path channel 301. The first light-diffusing film 306 is disposed between the third beam splitter 304 and the standard colorimeter 40. The first light-diffusing film 306 enables the first portion of light entering the standard colorimeter 40 after being separated by the third beam splitter 304 to be more uniform.

[0062] In a specific embodiment, such as Figures 1-3 As shown, the standard colorimeter 40 is arranged along the first longitudinal axis of the housing portion 10, which facilitates the standard colorimeter 40 in receiving the first portion of light separated by the third beam splitter 304.

[0063] In a specific embodiment, such as Figure 3 As shown, the optical path section 30 also includes a second light-diffusing film 307 disposed inside the housing section 10 and arranged along the first optical path channel 301. The second light-diffusing film 307 is disposed between the third beam splitter 304 and the color imaging probe 50. The second light-diffusing film 307 enables the second portion of light entering the color imaging probe 50 after being separated by the third beam splitter 304 to be more uniform.

[0064] In a specific embodiment, such as Figures 1-3 As shown, the color imaging probe 50 is arranged along the third transverse axis, which facilitates the color imaging probe 50 in receiving the second part of the light after it has been separated by the third beam splitter 304.

[0065] In a specific embodiment, such as Figures 1-3 As shown, the color imaging probe 50 is disposed on the second side 102 of the housing 10, which facilitates the installation and use of the color imaging probe 50 and improves the aesthetics of the color experimental setup.

[0066] In a specific embodiment, such as Figures 4-6 As shown, the three-color light source inlet includes a light source inlet 204 for allowing the first color light source, the second color light source, and the third color light source to enter the interior of the housing portion 10 together. The light source inlet 204 is arranged along the second longitudinal axis of the housing portion 10. The first color light source, the second color light source, and the third color light source can all enter the interior of the housing portion 10 together through the light source inlet 204, which is simple and efficient.

[0067] In a specific embodiment, such as Figure 6 As shown, the optical path section 30 includes: a second optical path channel 308 and a fourth beam splitter 309. Among them,

[0068] The second optical path channel 308 is disposed inside the housing portion 10 along the second longitudinal axis of the housing portion 10. The second optical path channel 308 is used to mix the first color light source, the second color light source, and the third color light source that enter the housing portion 10 through the light source inlet 204.

[0069] The fourth beam splitter 309 is disposed inside the housing portion 10 and along the second optical path channel 308. The fourth beam splitter 309 is used to separate the mixed light.

[0070] The second optical path channel 308 enables the first color light source, the second color light source, and the third color light source that enter the housing 10 through the light source inlet 204 to be uniformly mixed. Furthermore, the fourth beam splitter 309 enables the mixed light to be separated, thereby facilitating the acquisition of the separated light by the standard colorimeter 40 and the color imaging probe 50.

[0071] In a specific embodiment, such as Figure 6 As shown, the optical path section 30 includes a second plano-convex lens 310 disposed inside the housing section 10 and arranged along the second optical path channel 308. The second plano-convex lens 310 is positioned between the light source inlet 204 and the fourth beam splitter 309. The second plano-convex lens 310 can collimate the mixed light and convert it into parallel light with good collimation effect, thereby facilitating the separation of parallel light by the fourth beam splitter 309.

[0072] In a specific embodiment, such as Figure 6 As shown, the optical path section 30 includes a third light-diffusing film 311 disposed inside the housing section 10 and arranged along the second optical path channel 308. The third light-diffusing film 311 is disposed between the fourth beam splitter 309 and the standard colorimeter 40. The third light-diffusing film 311 enables the first portion of light entering the standard colorimeter 40 after being separated by the fourth beam splitter 309 to be more uniform.

[0073] In a specific embodiment, such as Figures 4-6 As shown, the standard colorimeter 40 is arranged along the second longitudinal axis of the housing portion 10, which facilitates the standard colorimeter 40 in receiving the first portion of light separated by the fourth beam splitter 309.

[0074] In a specific embodiment, such as Figure 6 As shown, the optical path section 30 also includes a fourth light-diffusing film 312 disposed inside the housing section 10 and arranged along the second optical path channel 308. The fourth light-diffusing film 312 is disposed between the fourth beam splitter 309 and the color imaging probe 50. The fourth light-diffusing film 312 enables the second portion of light entering the color imaging probe 50 after being separated by the fourth beam splitter 309 to be more uniform.

[0075] In a specific embodiment, such as Figures 4-6 As shown, the color imaging probe 50 is arranged along the fourth transverse axis, which facilitates the color imaging probe 50 in receiving the second part of the light after it has been separated by the fourth beam splitter 309.

[0076] In one specific embodiment, the chromaticity conversion parameters include a transformation matrix and / or coordinate transformation coefficients. By utilizing matrix transformation and / or coordinate transformation coefficients, the actual acquired values ​​detected by the color imaging probe can be calibrated to standard values, thereby obtaining a true RGB color image, ensuring that the color synthesized by the color imaging probe ultimately conforms to the true emission wavelength.

[0077] In one specific embodiment, the three-color light source includes red, green, and blue primary color light sources, which can be easily mixed to form the desired light.

[0078] When using the color experimental device of the present invention, a standard colorimeter is used to determine the first chromaticity coordinates based on the first part of the light, and a color imaging probe is used to determine the second chromaticity coordinates based on the second part of the light. The chromaticity conversion parameters between the second and first chromaticity coordinates can be used to correct the detection and imaging results of the color imaging probe, thereby obtaining a true RGB color image. This ensures that the color synthesized by the color imaging probe conforms to the true emission wavelength. The device is simple, efficient, accurate, reliable, and easy to use.

[0079] Based on the above embodiments, the present invention also proposes a color imaging system, including the aforementioned color experimental apparatus.

[0080] The color imaging probe of the color imaging system of the present invention can detect color cathode fluorescence signals in real time, has efficient optical acquisition and dispersion capabilities, and can correct the detection and imaging results of the color imaging probe by using the chromaticity conversion parameters between the second chromaticity coordinates and the first chromaticity coordinates of the color experimental device, thereby presenting a color image that reflects the emission band of the sample. It is simple, efficient, accurate, reliable and quick.

[0081] The scope of protection of this invention is not limited to the embodiments described above. Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its scope and spirit. If these modifications and variations fall within the scope of the claims of this invention and their equivalents, then the intent of this invention also includes these modifications and variations.

Claims

1. A color experimental apparatus, characterized in that, include: The system comprises a housing (10), a light source (20), an optical path (30), a standard colorimeter (40), and a color imaging probe (50); among which, The light source unit (20) includes a tri-color light source and a tri-color light source inlet disposed on the housing unit (10); the tri-color light source inlet is used to allow the tri-color light source to enter the interior of the housing unit (10); The optical path section (30) is disposed inside the housing section (10); the optical path section (30) is used to mix the three-color light sources and separate the mixed light to obtain a first part of light and a second part of light; The standard colorimeter (40) is disposed at a first position away from the entrance of the tri-color light source in the housing (10); the standard colorimeter (40) is used to acquire the first portion of light and determine a first chromaticity coordinate for characterizing the color of the first portion of light based on the first portion of light; The color imaging probe (50) is disposed in the housing (10) at a second position different from the first position, away from the entrance of the three-color light source; the color imaging probe (50) is used to acquire the second part of the light and determine the second chromaticity coordinates for characterizing the color of the second part of the light based on the second part of the light; the chromaticity conversion parameter between the second chromaticity coordinates and the first chromaticity coordinates is used to correct the detection imaging result of the color imaging probe (50); The optical path section (30) includes: a first optical path channel (301), a first beam splitter (302), a second beam splitter (303), and a third beam splitter (304); wherein, The first optical path channel (301) is disposed inside the housing portion (10) along the first longitudinal axis of the housing portion (10); The first beam splitter (302), the second beam splitter (303), and the third beam splitter (304) are disposed inside the housing part (10) and arranged at intervals along the first optical path channel (301); the first beam splitter (302) and the second beam splitter (303) together are used to mix the three-color light source entering the housing part (10), and the third beam splitter (304) is used to separate the mixed light.

2. The color experimental apparatus according to claim 1, characterized in that, The optical path section (30) includes a first plano-convex lens (305) disposed inside the housing section (10) and arranged along the first optical path channel (301). The first plano-convex lens (305) is disposed between the second beam splitter (303) and the third beam splitter (304).

3. The color experimental apparatus according to claim 2, characterized in that, The three-color light source inlets include: a first color light source inlet (201), a second color light source inlet (202), and a third color light source inlet (203). The first beam splitter (302) is disposed near the first color light source inlet (201) and the second color light source inlet (202). The first beam splitter (302) is used to mix the first color light source entering the interior of the housing part (10) through the first color light source inlet (201) and the second color light source entering the interior of the housing part (10) through the second color light source inlet (202).

4. The color experimental apparatus according to claim 3, characterized in that, The second beam splitter (303) is positioned near the inlet (203) of the third color light source and between the first beam splitter (302) and the first plano-convex lens (305). The second beam splitter (303) is used to mix the third color light source that enters the interior of the housing part (10) through the inlet (203) of the third color light source with the mixed first color light source and the second color light source.

5. The color experimental apparatus according to claim 4, characterized in that, The first color light source inlet (201) is arranged along the first longitudinal axis of the housing portion (10), the second color light source inlet (202) is arranged along the first transverse axis of the housing portion (10), and the third color light source inlet (203) is arranged along the second transverse axis of the housing portion (10).

6. The color experimental apparatus according to claim 4, characterized in that, The second color light source inlet (202) and the third color light source inlet (203) are both located on the first side (101) of the housing portion (10).

7. The color experimental apparatus according to claim 1, characterized in that, The optical path section (30) includes a first light-diffusing film (306) disposed inside the housing section (10) and arranged along the first optical path channel (301). The first light-diffusing film (306) is disposed between the third beam splitter (304) and the standard colorimeter (40).

8. The color experimental apparatus according to claim 7, characterized in that, The standard colorimeter (40) is arranged along the first longitudinal axis of the housing portion (10).

9. The color experimental apparatus according to claim 1, characterized in that, The optical path section (30) further includes a second light-diffusing film (307) disposed inside the housing section (10) and arranged along the first optical path channel (301). The second light-diffusing film (307) is disposed between the third beam splitter (304) and the color imaging probe (50).

10. The color experimental apparatus according to claim 9, characterized in that, The color imaging probe (50) is arranged along the third transverse axis of the housing portion (10).

11. The color experimental apparatus according to claim 9, characterized in that, The color imaging probe (50) is disposed on the second side (102) of the housing (10).

12. The color experimental apparatus according to claim 1, characterized in that, The three-color light source inlet includes a light source inlet (204) for the first color light source, the second color light source and the third color light source to enter the interior of the housing part (10) together, and the light source inlet (204) is arranged along the second longitudinal axis of the housing part (10).

13. The color experimental apparatus according to claim 12, characterized in that, The optical path section (30) includes: a second optical path channel (308) and a fourth beam splitter (309); wherein, The second optical path channel (308) is disposed inside the housing part (10) along the second longitudinal axis of the housing part (10); the second optical path channel (308) is used to mix the first color light source, the second color light source and the third color light source that enter the housing part (10) through the light source inlet (204); The fourth beam splitter (309) is disposed inside the housing portion (10) and along the second optical path channel (308); the fourth beam splitter (309) is used to separate the mixed light.

14. The color experimental apparatus according to claim 13, characterized in that, The optical path section (30) includes a second plano-convex lens (310) disposed inside the housing section (10) and arranged along the second optical path channel (308). The second plano-convex lens (310) is disposed between the light source inlet (204) and the fourth beam splitter (309).

15. The color experimental apparatus according to claim 13, characterized in that, The optical path section (30) includes a third light-diffusing film (311) disposed inside the housing section (10) and arranged along the second optical path channel (308). The third light-diffusing film (311) is disposed between the fourth beam splitter (309) and the standard colorimeter (40).

16. The color experimental apparatus according to claim 15, characterized in that, The standard colorimeter (40) is arranged along the second longitudinal axis of the housing portion (10).

17. The color experimental apparatus according to claim 13, characterized in that, The optical path section (30) further includes a fourth light-diffusing film (312) disposed inside the housing section (10) and arranged along the second optical path channel (308). The fourth light-diffusing film (312) is disposed between the fourth beam splitter (309) and the color imaging probe (50).

18. The color experimental apparatus according to claim 17, characterized in that, The color imaging probe (50) is arranged along the fourth transverse axis of the housing portion (10).

19. The color experimental apparatus according to claim 1, characterized in that, The chromaticity conversion parameters include the conversion matrix and / or coordinate conversion coefficients.

20. The color experimental apparatus according to claim 1, characterized in that, The three-color light source includes red, green, and blue primary color light sources.

21. A color imaging system, characterized in that, Includes the color experimental apparatus according to any one of claims 1 to 20.

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