Dual-path spectral correction imaging color brightness meter

Abstract

The application discloses a double-path spectral correction imaging color brightness meter for meeting the measurement requirements of different measurement environments and precisions. The application comprises a shell, a control module, an internal spectrometer, a light processing module, a rotating disc, a lens, a first optical fiber, a second optical fiber and a light splitting assembly; the rotating disc and the light splitting assembly are arranged on the shell, and an interface is arranged on the shell; the interface and the light splitting assembly are connected through the first optical fiber, the internal spectrometer and the light splitting assembly are connected through the second optical fiber, and the interface is used for being connected with an external spectrometer; a shooting lens and a reflecting prism are arranged on the rotating disc; when the rotating disc is rotated to be coaxial with the shooting lens and an incident light beam, the incident light beam reaches the light processing module through the shooting lens; when the rotating disc is rotated to be coaxial with the reflecting prism and the incident light beam, the incident light beam is reflected by the reflecting prism to form an outgoing light beam coaxial with the light splitting assembly, and the light splitting assembly is used for introducing the outgoing light beam into the first optical fiber and / or the second optical fiber.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of color brightness measurement equipment, and particularly relates to an imaging color brightness meter with double-path spectral correction. BACKGROUND

[0002] The imaging color brightness meter is an important optical measurement tool, which measures and quantifies the color brightness characteristics of an object by capturing and analyzing the spectral information reflected or emitted by the object, and is widely used in scientific research, industrial quality control, environmental monitoring and consumer product detection.

[0003] At present, the imaging color brightness meters on the market are mainly divided into two categories, namely, an imaging color brightness meter with an external high-precision spectrometer and an imaging color brightness meter with a built-in miniature spectrometer. The imaging color brightness meter with an external high-precision spectrometer can provide extremely high measurement accuracy by connecting a high-precision spectral analysis device, but it has obvious disadvantages in portability due to its large size and heavy weight. The imaging color brightness meter with a built-in miniature spectrometer realizes portability by miniaturizing and integrating the spectrometer into the imaging color brightness meter, but the measurement range of the miniature spectrometer is often small due to the limitations of size and power consumption, and the measurement accuracy under low brightness conditions is poor.

[0004] In some occasions where both high-precision measurement and portability are required, the imaging color brightness meter with an external high-precision spectrometer and the imaging color brightness meter with a built-in miniature spectrometer need to be carried at the same time to meet the measurement requirements of different measurement environments and measurement accuracies, which increases the user's carrying burden and also increases the measurement cost and complexity.

[0005] Therefore, the present application provides an imaging color brightness meter with double-path spectral correction to solve the above technical problems. CONTENT OF THE PRESENT INVENTION

[0006] In order to solve the above technical problems, the present application provides an imaging color brightness meter with double-path spectral correction, which can meet the measurement requirements of different measurement environments and accuracies.

[0007] The first aspect of the present application provides an imaging color brightness meter with double-path spectral correction, comprising:

[0008] a shell, a control module, an internal spectrometer, a light processing module, a rotating disc, a lens, a first optical fiber, a second optical fiber and a light splitting assembly;

[0009] The control module, the internal spectrometer and the light processing module are arranged in the shell, and the control module is electrically connected with the internal spectrometer and the light processing module respectively; the lens is arranged on the shell, and the lens is used for transmitting an incident light beam, the incident light beam is transmitted into the shell along the lens, and an optical path connection is formed between the lens and the light processing module; the rotating disc and the light splitting assembly are arranged on the shell, and the rotating disc is located between the lens and the light processing module; an interface is arranged on the shell, and the measurement accuracy of the external spectrometer is higher than that of the internal spectrometer; the interface and the light splitting assembly are connected through the first optical fiber, the internal spectrometer and the light splitting assembly are connected through the second optical fiber, and the interface is used for connecting with an external spectrometer.

[0010] The rotating disc is provided with a shooting lens and a reflecting prism, and the rotating disc is controlled to rotate; when the rotating disc is coaxial with the shooting lens and the incident light beam, the incident light beam reaches the light processing module through the shooting lens; when the rotating disc is coaxial with the reflecting prism and the incident light beam, the incident light beam is reflected by the reflecting prism to form an outgoing light beam coaxial with the light splitting assembly, and the light splitting assembly is used for introducing the outgoing light beam into the first optical fiber and / or the second optical fiber.

[0011] Optionally, the light splitting assembly is an optical fiber plug and a fixing seat, the fixing seat is fixed on the shell, the optical fiber plug is fixed on the fixing seat, and the optical fiber plug is coaxial with the outgoing light beam.

[0012] The first optical fiber and the second optical fiber are arranged in the optical fiber plug, the first optical fiber and the second optical fiber are tangent, and the tangent point is aligned with the axis of the outgoing light beam.

[0013] Optionally, the core diameter of the first optical fiber is greater than that of the second optical fiber.

[0014] Optionally, the first optical fiber and the second optical fiber are single-core optical fibers.

[0015] Optionally, the light splitting assembly is a light splitter, the first optical fiber is connected with the output end of the light splitter, the second optical fiber is connected with the output end of the light splitter, the input end of the light splitter extends outwards to a third optical fiber, the third optical fiber is coaxial with the outgoing light beam, and the light splitter is used for guiding the outgoing light beam into the first optical fiber and the second optical fiber at the same time.

[0016] Optionally, the light splitting assembly comprises a track and a position switching seat, the track is arranged on the shell, the position switching seat is arranged on the track, the first optical fiber and the second optical fiber are arranged side by side on the position switching seat, and the position switching seat is controlled to move along the track, so that the first optical fiber or the second optical fiber is coaxial with the emergent light beam.

[0017] Optionally, the track is a straight track, and the straight track is perpendicular to the emergent light beam.

[0018] Optionally, the light splitting assembly is a beam splitter, and the beam splitter comprises a reflection state and a refraction state, and the beam splitter is controlled to switch between the reflection state and the refraction state, in the reflection state, the emergent light beam reaches the second optical fiber after being reflected by the beam splitter, and in the refraction state, the emergent light beam reaches the first optical fiber after being refracted by the beam splitter.

[0019] From the above technical solutions, the present application has the following effects:

[0020] The present application sets an interface on the shell, which can be externally connected to an external optical spectrum instrument, and the measurement accuracy of the external optical spectrum instrument is higher than that of the internal optical spectrum instrument built in the shell. The light splitting assembly is arranged on the shell. When the incident light beam forms the emergent light beam through the reflecting prism, the emergent light beam is coaxial with the light splitting assembly. The light splitting assembly is connected to the interface through the first optical fiber and connected to the internal optical spectrum instrument through the second optical fiber. The emergent light beam can be introduced into the first optical fiber or the second optical fiber through the light splitting assembly. Therefore, the present application can select internal optical spectrum instruments or external optical spectrum instruments with different accuracies through the light splitting assembly under different measurement environment and measurement accuracy requirements, so as to meet the measurement requirements of different measurement environments and measurement accuracies. When dealing with different measurement accuracies, it is no longer necessary to carry an imaging color brightness meter with an externally connected high-precision optical spectrum instrument and an imaging color brightness meter with a built-in miniature optical spectrum instrument, thereby reducing the carrying burden. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 FIG. 1 is a schematic diagram of an imaging color brightness meter with double-path spectrum correction according to the present application;

[0023] Figure 2 FIG. 2 is another schematic diagram of an imaging color brightness meter with double-path spectrum correction according to the present application;

[0024] Figure 3 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0025] Figure 4 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0026] Figure 5 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0027] Figure 6 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0028] Figure 7 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0029] Figure 8 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0030] Figure 9 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0031] Figure 10 Another schematic diagram of a dual-path spectral correction imaging color brightness meter according to the present application;

[0032] Wherein, the shell 01, control module 02, internal spectrometer 03, light processing module 04, rotating disc 05, the first optical fiber 06, the second optical fiber 07, the beam splitter 08, the interface 09, the shooting lens 10, the measurement plate 11, the reflection prism 12, the drive motor 13, the optical fiber plug 14, the fixed seat 15, the light splitter 16, the third optical fiber 17, the track 18, the position switching seat 19, the lens 20. DETAILED DESCRIPTION

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings, and are used only to illustrate the relative positional relationship between the components or constituent parts, and do not particularly limit the specific installation orientation of the components or constituent parts.

[0034] And, the above-mentioned partial terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in this application can be understood according to the specific circumstances.

[0035] In addition, the terms "mounting", "setting", "provided with", "connection", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] In addition, the structure, proportion, size, etc. drawn in the drawings attached in this application are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and do not have technical substantive significance, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and the purpose that can be achieved by this application, still should fall within the scope of the technical content disclosed by this application.

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely in the following combined with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0038] The present application provides a dual-channel spectral correction imaging color brightness meter, which is used to meet the measurement requirements of different measurement environments and precision, and reduce the carrying burden. The specific implementation process of the present application is described as follows.

[0039] Please refer to Figures 1 to 10 The first aspect of the present application provides a dual-channel spectral correction imaging color brightness meter, which comprises:

[0040] The shell 01, the control module 02, the internal spectrometer 03, the light processing module 04, the rotating disc 05, the lens 20, the first optical fiber 06, the second optical fiber 07 and the light splitting assembly;

[0041] The control module 02, the internal spectrometer 03 and the light processing module 04 are arranged in the shell 01, and the control module 02 is electrically connected with the internal spectrometer 03 and the light processing module 04 respectively; the lens 20 is arranged on the shell 01, and the lens 20 is used for transmitting an incident light beam, the incident light beam is transmitted into the shell 01 along the lens, and the lens 20 is connected with the light processing module 04 in an optical path; the rotating disc 05 and the light splitting assembly are arranged on the shell 01, and the rotating disc 05 is located between the lens 20 and the light processing module 04, and the shell 01 is provided with an interface 09, and the measurement accuracy of the external spectrometer is higher than that of the internal spectrometer 03; the interface 09 is connected with the light splitting assembly through the first optical fiber 06, the internal spectrometer 03 is connected with the light splitting assembly through the second optical fiber 07, and the interface 09 is used for connecting with the external spectrometer;

[0042] The rotating disc 05 is provided with a shooting lens 10 and a reflecting prism 12, and the rotating disc 05 is controlled to rotate, when the rotating disc 05 rotates to be coaxial with the shooting lens 10 and the incident light beam, the incident light beam passes through the shooting lens 10 and reaches the light processing module 04; when the rotating disc 05 rotates to be coaxial with the reflecting prism 12 and the incident light beam, the incident light beam is reflected by the reflecting prism 12 to form an outgoing light beam coaxial with the light splitting assembly, and the light splitting assembly is used for introducing the outgoing light beam into the first optical fiber 06 and / or the second optical fiber 07

[0043] The rotating disc 05 is provided with a measuring plate 11, the measuring plate 11 is equal in size to the shooting lens 10, the reflecting prism 12 is fixed on the measuring plate 11, and the measuring plate 12 is parallel to the rotating disc 05. The reflecting prism 12 is in the area of the measuring plate 11, and the mirror surface of the reflecting prism 12 is at an acute angle with the measuring plate 11, so that when the incident light beam irradiates on the mirror surface, the incident light beam can be reflected at other angles (the reflected light beam is the outgoing light beam).

[0044] The shell 01 is provided with a space, the internal spectrometer 03, the light processing module 04 and the control module 02 are arranged in the space and connected with the shell 01 respectively, and a driving motor 13 is further arranged in the space, and the rotating disc 05 is arranged in front of the shell 01 and movably connected with the shell 01, wherein the front refers to the light entering direction of the incident light beam, the driving motor 13 is connected with the rotating disc 05, the driving motor 13 can drive the rotating disc 05 to rotate, and the driving motor 13 and the rotating disc 05 can be connected through a belt or a gear.

[0045] The control module 02 is electrically connected with the driving motor 13, the light processing module 04, the light splitting assembly and the internal spectrometer 03 respectively, and is used to control the light processing module 04, the internal spectrometer 03, the light splitting assembly and the driving motor 13 to operate. The light processing module 04 is used to take a picture of the incident light beam when the shooting lens 10 is coaxial with the incident light beam. The light processing module 04 can obtain the image of the incident light beam and analyze and process the image to obtain the color brightness value in the image. The image sensor and the data processing module are arranged in the light processing module 04, and the image sensor can obtain the image of the incident light beam.

[0046] The angle between the mirror surface of the reflecting prism 12 and the measuring plate 11 is 45 degrees. When the incident light beam reaches the mirror surface, the incident light beam is reflected out, and the incident light beam and the outgoing light beam are perpendicular to each other at this time.

[0047] The lens 20 is aligned with the light processing module 04, and the lens 20 and the light processing module 04 are connected by an optical path. The incident light beam is emitted from the object to be measured, and the lens 20 transmits into the shell 01 (reaches the reflecting prism 12 on the rotating disc 05 or passes through the shooting lens 10 to reach the light processing module 04). The rotating disc 05 is located between the lens 20 and the light processing module 04, and the shooting lens 10 and the reflecting prism 12 are arranged on the rotating disc 05. The rotating disc 05 is controlled to rotate. When the rotating disc 05 rotates to the coaxial position of the shooting lens 10 and the incident light beam, the optical path between the lens 20, the shooting lens 10 and the light processing module 04 is connected, and the incident light beam can reach the light processing module 04 after passing through the shooting lens 10.

[0048] When the rotating disc 05 rotates to the coaxial position of the reflecting prism 12 and the incident light beam, the axis of the incident light beam is aligned with the reflecting prism 12. The incident light beam is irradiated on the mirror surface of the reflecting prism 12, and the outgoing light beam is formed after being reflected by the mirror surface. The outgoing light beam is coaxial with the arrangement direction of the light splitting assembly.

[0049] In addition, two light reduction mirrors are arranged on the rotating disc 05. The two light reduction mirrors have different light transmittances, and each light reduction mirror has the same shape and size as the shooting lens 10.

[0050] The light splitting assembly is arranged on the shell 01 and is coaxial with the outgoing light beam. The light splitting assembly is connected with the interface 09 through the first optical fiber 06 and is connected with the internal spectrometer 03 through the second optical fiber 07. The light splitting assembly has the function of introducing the outgoing light beam into the first optical fiber 06 or the second optical fiber 07, or simultaneously introducing the outgoing light beam into the first optical fiber 06 and the second optical fiber 07. The type of the interface 09 can be an SMA interface or an LC interface.

[0051] In actual use, the internal spectrometer 03 or the external spectrometer is selected for measurement according to the requirement of measurement accuracy or the requirement of measurement environment. If high-precision measurement is not required, the interface 09 on the shell 01 can not be externally connected with the external spectrometer, and only the internal spectrometer 03 built-in can be used for light measurement. When the external spectrometer with higher accuracy is selected, the external spectrometer is connected with the interface 09 on the shell 01, and the outgoing light beam is introduced into the first optical fiber 06 through the light splitting assembly, so as to realize light measurement in the external spectrometer.

[0052] In the embodiment, the interface 09 is arranged on the shell, the external spectrometer can be externally connected with the interface 09, the measurement accuracy of the external spectrometer is higher than that of the internal spectrometer 03 built-in, the light splitting assembly is arranged on the shell 01, the outgoing light beam is coaxial with the light splitting assembly when the outgoing light beam is formed by the reflected light beam of the reflecting prism 12, the light splitting assembly is connected with the interface 09 through the first optical fiber 06, and the light splitting assembly is connected with the internal spectrometer 03 through the second optical fiber 07. The outgoing light beam can be introduced into the first optical fiber 06 or the second optical fiber 07 through the light splitting assembly. Therefore, the application can select the internal spectrometer 03 or the external spectrometer with different accuracies through the light splitting assembly under different measurement environments and measurement accuracy requirements, so as to meet the measurement requirements of different measurement environments and measurement accuracies. When different measurement accuracies are met, the imaging color brightness meter with the externally connected high-precision spectrometer and the imaging color brightness meter with the built-in miniature spectrometer do not need to be carried simultaneously, and the carrying burden can be reduced.

[0053] In addition, the internal spectrometer can be used for spectral measurement, and the external spectrometer can be externally connected with the interface for spectral measurement, so that the compatibility of high accuracy and portability is realized.

[0054] Please continue to refer to Figure 5 and Figure 6 In an optional embodiment, the light splitting assembly is a fiber plug 14 and a fixing seat 15. The fixing seat 15 is fixed on the shell 01, the fiber plug 14 is fixed on the fixing seat 15, and the fiber plug 14 is coaxial with the outgoing light beam. The fiber plug 14 is sleeved on the first optical fiber 06 and the second optical fiber 07, the first optical fiber 06 and the second optical fiber 07 are arranged in the interior of the fiber plug 14, the first optical fiber 06 and the second optical fiber 07 are tangent, and the tangent point is aligned with the axis of the outgoing light beam.

[0055] A single-core optical fiber can be arranged in the first optical fiber 06, or a bundle composed of a plurality of single-core optical fibers can be arranged in the first optical fiber 06. The second optical fiber 07 is arranged in the same way as the first optical fiber 06.

[0056] In the embodiment, the fixed seat 15 is fixed on the shell 01, the optical fiber plug 14 is fixed on the fixed seat 15, and the arrangement direction of the optical fiber plug 14 is coaxial with the outgoing light beam. One end of the first optical fiber 06 and one end of the second optical fiber 07 are arranged in the optical fiber plug 14 together. The end of the first optical fiber 06 and the end of the second optical fiber 07 are flush. The cross sections of the first optical fiber 06 and the second optical fiber 07 are circular. The end of the first optical fiber 06 and the end of the second optical fiber 07 are tangent to the outer diameter. The tangent point is aligned with the axis of the outgoing light beam. The outgoing light beam is divided into two paths at the tangent point and enters the first optical fiber 06 and the second optical fiber 07 respectively. The information carried by the two light signals in the transmission process is similar.

[0057] In the optional embodiment, the core diameter of the first optical fiber 06 is larger than the core diameter of the second optical fiber 07. In the embodiment, the core diameter of the first optical fiber 06 connected with the interface 09 is set to be larger. When the interface 09 is connected with an external optical spectrometer with higher precision, the external optical spectrometer can be provided with a light signal with higher brightness, thereby reducing signal loss.

[0058] In the optional embodiment, the first optical fiber 06 and the second optical fiber 07 are both single-core optical fibers. The single-core optical fibers can improve the anti-interference ability, effectively resist the interference of the external environment on the light signal, improve the transmission efficiency of the light signal and the measurement accuracy, and simplify the optical path design.

[0059] Please continue to refer to Figure 7 In an optional embodiment, the light splitting assembly is a light splitter 16. The first optical fiber 06 is connected with the output end of the light splitter 16, and the second optical fiber 07 is connected with the output end of the light splitter 16. The input end of the light splitter 16 extends outwardly to form a third optical fiber 17. The third optical fiber 17 is coaxial with the outgoing light beam. The light splitter 16 is used to guide the outgoing light beam into the first optical fiber 06 and the second optical fiber 07 simultaneously.

[0060] In the embodiment, the light splitter 16 is arranged to guide the outgoing light beam into the first optical fiber 06 and the second optical fiber 07 simultaneously. Specifically, the light splitter 16 includes an input end and an output end, which are responsible for guiding the incoming outgoing light beam into the first optical fiber 06 and the second optical fiber 07 simultaneously. The input end of the light splitter 16 is provided with the third optical fiber 17. The arrangement direction of the third optical fiber 17 is coaxial with the outgoing light beam, that is, the outgoing light beam reaches the third optical fiber 17. When the outgoing light beam passes through the third optical fiber 17 and enters the light splitter 16, the light splitter 16 guides the outgoing light beam into the first optical fiber 06 and the second optical fiber 07 simultaneously, thereby ensuring that the information carried by the two light signals in the transmission process is similar. The light splitter 16 can guide the outgoing light beam into the first optical fiber 06 and the second optical fiber 07 simultaneously and accurately, improve the light splitting efficiency, reduce the loss and scattering of the light signal, and ensure the stability and accuracy of the light signal.

[0061] Please continue to see Figure 8 In an alternative embodiment, the light splitting assembly comprises a track 18 and a position switching seat 19, the track 18 is arranged on the housing 01, the position switching seat 19 is arranged on the track 18, the first optical fiber 06 and the second optical fiber 07 are arranged side by side on the position switching seat 19, and the position switching seat 19 is controlled to move along the track 18, so that the first optical fiber 06 or the second optical fiber 07 is coaxial with the outgoing light beam.

[0062] The track 18 is mounted on the housing 01 to provide a smooth and stable movement path for the position switching seat 19. The track 18 can be in the form of a linear guide rail or an arc-shaped guide rail, depending on the application requirements.

[0063] In this embodiment, the first optical fiber 06 and the second optical fiber 07 are independent and fixed on the position switching seat 19 respectively. Through the cooperation of the position switching seat 19 and the track 18, the position of the first optical fiber 06 and the second optical fiber 07 can be moved. Specifically, the position switching seat 19 is controlled to move along the track 18, and the movement of the position switching seat 19 can be manually controlled.

[0064] In an implementable manner, the movement of the position switching seat 19 on the track 18 is in an automatic manner, such as being driven by a stepper motor or a servo motor. The stepper motor or the servo motor is electrically connected to the control module 02 in the housing 01, and control instructions are sent to the stepper motor or the servo motor through the control module 02 to realize control.

[0065] In this alternative embodiment, the track 18 is a straight rail, which is perpendicular to the outgoing light beam. In this embodiment, when the position switching seat 19 moves, the first optical fiber 06, the second optical fiber 07 and the outgoing light beam are always in the same plane, so that the end of the first optical fiber 06 and the end of the second optical fiber 07 can be switched along a direction perpendicular to the outgoing light beam.

[0066] Please continue to see Figures 9 to 10 In an alternative embodiment, the light splitting assembly is a beam splitter 08, which comprises a reflection state and a refraction state. The beam splitter 08 is controlled to switch between the reflection state and the refraction state. In the reflection state, the outgoing light beam reaches the second optical fiber 07 after being reflected by the beam splitter 08. In the refraction state, the outgoing light beam reaches the first optical fiber 06 after being refracted by the beam splitter 08.

[0067] The beam splitter 08 can switch the outgoing light beam between the reflection state and the refraction state by using a special optical coating or structural design. In the reflection state, the beam splitter 08 reflects the outgoing light beam to the second optical fiber 07. In the refraction state, the beam splitter 08 allows the outgoing light beam to pass through and refract to the first optical fiber 06.

[0068] To realize the switching between the reflection state and the refraction state, the optical property of the beam splitter 08 can be changed by an electromagnetic driver or a piezoelectric element. For example, by changing the electric field or the magnetic field inside the beam splitter 08, the refractive index or the optical path length of the beam splitter 08 is changed, thereby realizing the switching between the reflection state and the refraction state. In addition, other ways can also be used to change the optical property of the beam splitter 08, such as changing the temperature of the beam splitter 08 by using thermal effect, thereby changing the refractive index of the beam splitter 08; or moving or rotating the lens by using mechanical device, so as to change the reflection path or the refraction path of the light beam.

[0069] It is to be understood that the above description is illustrative of the application and not in any sense limiting of the present application. Numerous modifications as would be apparent to one skilled in the art can be made without departing from the scope of the application and the general principles of embodi ments disclosed herein are intended to be as broad as it is realizable. Accordingly, although the present application has been described in detail with reference to exemplary embodiments, alternatives, modifications, equivalents, and improvements, intended to be encompassed by this application, can be made by those skilled in the art without departing from the spirit and scope of the application.

Claims

1. An imaging color brightness meter with two-path spectral correction, characterized in that, The application relates to a portable optical spectrum analyzer, which comprises a shell, a control module, an internal optical spectrum analyzer, an optical processing module, a rotating disc, a lens, a first optical fiber, a second optical fiber and a light splitting assembly. The control module, the internal optical spectrum analyzer and the optical processing module are arranged in the shell, and the control module is electrically connected with the internal optical spectrum analyzer and the optical processing module respectively; the lens is arranged on the shell and is used for transmitting an incident light beam, the incident light beam is transmitted into the shell along the lens, and the lens is connected with the optical processing module in an optical path; the rotating disc and the light splitting assembly are arranged on the shell, and the rotating disc is located between the lens and the optical processing module; an interface is arranged on the shell, the interface is connected with the light splitting assembly through the first optical fiber, and the internal optical spectrum analyzer is connected with the light splitting assembly through the second optical fiber; and the interface is used for connecting with an external optical spectrum analyzer. A shooting lens and a reflecting prism are arranged on the rotating disc, and the rotating disc is controlled to rotate; when the rotating disc is coaxial with the shooting lens and the incident light beam, the incident light beam reaches the optical processing module through the shooting lens; when the rotating disc is coaxial with the reflecting prism and the incident light beam, the incident light beam is reflected by the reflecting prism to form an outgoing light beam coaxial with the light splitting assembly; and the light splitting assembly is used for introducing the outgoing light beam into the first optical fiber and / or the second optical fiber. The light splitting assembly is an optical fiber plug and a fixing seat, the fixing seat is fixed on the shell, the optical fiber plug is fixed on the fixing seat, and the optical fiber plug is coaxial with the outgoing light beam. The first optical fiber and the second optical fiber are arranged in the optical fiber plug, the first optical fiber is tangent to the second optical fiber, and the tangent point is aligned with the axis of the outgoing light beam.

2. The imaging color brightness meter according to claim 1, characterized in that The core diameter of the first optical fiber is larger than that of the second optical fiber. The first optical fiber and the second optical fiber are single-core optical fibers.

3. The imaging color brightness meter of claim 2, wherein, The light splitting assembly is a light splitter, the first optical fiber is connected with the output end of the light splitter, the second optical fiber is connected with the output end of the light splitter, the input end of the light splitter extends outwards to form a third optical fiber, the third optical fiber is coaxial with the outgoing light beam, and the light splitter is used for simultaneously guiding the outgoing light beam into the first optical fiber and the second optical fiber.

4. The imaging color brightness meter according to claim 2 or 3, characterized in that The light splitting assembly comprises a track and a position switching seat, the track is arranged on the shell, the position switching seat is arranged on the track, the first optical fiber and the second optical fiber are arranged side by side on the position switching seat, and the position switching seat is controlled to move along the track so that the first optical fiber or the second optical fiber is coaxial with the outgoing light beam.

5. The imaging color brightness meter of claim 1, wherein, The track is a straight track, and the straight track is perpendicular to the outgoing light beam.

6. The imaging color brightness meter of claim 1, wherein, ​ 7. The imaging color brightness meter of claim 6, wherein, ​ 8. The imaging color brightness meter of claim 1, wherein, The light splitting component is a beam splitter, the beam splitter includes a reflection state and a refraction state, the beam splitter is controlled to switch between the reflection state and the refraction state, in the reflection state, the exit light beam reaches the second optical fiber after being reflected by the beam splitter, in the refraction state, the exit light beam reaches the first optical fiber after being refracted by the beam splitter.

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