Method and device for rapidly detecting polarization vector of polarized light

Abstract

The embodiment of the invention relates to the technical field of polarization measurement, in particular to a polarized light polarization vector rapid detection method and device, and the device comprises four polarized light polarization vector detection channels, a fixing and leveling base, a level gauge, a direction indication prism and a liquid crystal display panel, each polarized light polarization vector detection channel is composed of a wide-spectrum optical filter, a microarray polarization device, a collecting lens assembly, a photoelectric detector and a signal processing assembly. The four polarized light polarization vector detection channels respectively correspond to four polarization vector directions; during detection, the polarized light polarization vector rapid detection device is arranged in a light beam range of polarized light to be detected, the four polarized light polarization vector detection channels respectively carry out signal processing and vector resolving on received light signals, and finally the polarized light polarization vector of the polarized light to be detected is led out through the azimuth indication prism. And displaying through the liquid crystal display panel. The device can realize rapid and high-precision polarized light polarization vector detection.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of polarization measurement technology, and in particular to a method and device for quickly detecting the polarization vector of polarized light. Background Art

[0002] Light, as a transverse electromagnetic wave, consists of intertwined electric and magnetic fields. The vibration direction of the light vector is perpendicular to the direction of wave propagation. Therefore, the light vector is not symmetrically distributed in a plane perpendicular to the wave line, but rather is biased in a specific direction. This is the polarization property of light. Simply put, when the magnitude and direction of the light vector exhibit regular variations, such light is called polarized light. Based on its polarization properties, polarized light can be further divided into linear polarization, circular polarization, elliptically polarized light, and vector polarization.

[0003] The polarization vector of polarized light is a mathematical tool used to quantitatively describe the polarization state of a beam of polarized light. It is not a physical entity itself, but a vector that represents the electric field vibration direction and relative phase relationship. It can provide information such as vibration direction, amplitude ratio, and phase difference.

[0004] In scenarios such as aerospace, ocean navigation, and industrial measurement, detecting and calibrating the polarization vector of polarized light is essential, directly impacting the ability to perform related tasks. The accuracy and efficiency of polarization vector detection are crucial. Currently, the most commonly used polarization vector detection methods use rotating polarization devices. These devices have complex structures, long detection times, and low accuracy, making them incapable of meeting the requirements for high accuracy and efficiency. Summary of the Invention

[0005] In order to solve the above technical problems, the embodiments of the present application propose a method and device for rapid detection of the polarization vector of polarized light, which is not affected by the energy of the polarized light to be measured and the detection environment, does not require the rotation of the detection device, and can achieve rapid and high-precision detection of the polarization vector of polarized light. It can well adapt to scenarios with high detection accuracy and high detection efficiency requirements.

[0006] In the first aspect, an embodiment of the present application proposes a polarization vector rapid detection device for polarized light, comprising four polarized light polarization vector detection channels, a fixing and leveling base, a level, an azimuth indicating prism and a liquid crystal display panel, wherein each polarized light polarization vector detection channel is composed of a wide-band filter, a micro-array polarization device, a condenser assembly, a photodetector and a signal processing assembly; the four polarized light polarization vector detection channels correspond to four polarization vector directions, each polarization vector direction is fixed at an interval of 45°, and the micro-array polarization devices of the four polarized light polarization vector detection channels are micro-polarization arrays in the 0° direction, 45° direction, 90° direction and 135° direction respectively; during detection, the polarized light polarization vector rapid detection device is placed within the light beam range of the polarized light to be measured to ensure that the four polarized light polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured, and the four polarized light polarization vector detection channels each perform signal processing and vector solution on the received optical signal, and finally the polarized light polarization vector of the polarized light to be measured is led out through the azimuth indicating prism and displayed through the liquid crystal display panel.

[0007] Optionally, during detection, after receiving the optical signal, each polarization vector detection channel of polarized light filters out stray light signals outside the corresponding spectrum band of the polarized light to be measured through a wide-band filter, and then performs polarization analysis through a micro-array polarization device, converts the signal into an energy signal and irradiates the condenser lens assembly. After being converged by the condenser lens assembly, the signal is received by the photodetector and signal processing assembly for signal processing and polarization vector solution.

[0008] Optionally, after the detection is completed, the liquid crystal display panel will display the calculated azimuth angle of the polarization vector of the polarized light to be measured in real time in the format of degrees / minutes / seconds.

[0009] Optionally, the fixed and leveling base is used to support four polarized light polarization vector detection channels, a level, an azimuth indicating prism and a liquid crystal display panel. Before the detection begins, the fixed and leveling base is adjusted until the level is in the middle position to ensure that the entire polarized light polarization vector rapid detection device is in a horizontal state.

[0010] In the second aspect, an embodiment of the present application proposes a method for rapid detection of polarization vector of polarized light, which is implemented based on a rapid detection device for polarization vector of polarized light as described in the first aspect above. The method includes: placing the rapid detection device for polarization vector of polarized light in the optical path of the polarized light to be measured, ensuring that the four polarization vector detection channels of polarization vector of polarized light can effectively receive the optical signal of the polarized light to be measured; adjusting the fixing and leveling base until the level is in the middle position, so that the entire rapid detection device for polarization vector of polarized light is in a horizontal state; powering on the rapid detection device for polarization vector of polarized light, and after the detection is completed, the polarization vector of the polarized light to be measured is drawn out by the azimuth indicating prism, and the azimuth angle of the polarization vector of the polarized light to be measured is displayed in real time through the liquid crystal display panel in the format of degrees, minutes and seconds. .

[0011] Optionally, after the detection is completed, the method further includes: setting up a photoelectric autocollimation theodolite at a position facing the azimuth indicating prism of the polarization vector rapid detection device of polarized light, ensuring that the measuring axis of the photoelectric autocollimation theodolite is at the same height as the azimuth indicating prism and can be aligned with the azimuth indicating prism, and recording the measured azimuth angle value of the photoelectric autocollimation theodolite to the azimuth indicating prism as ; Based on the calculated azimuth angle of the polarization vector of the polarized light to be measured , the measured azimuth angle value of the azimuth indicating prism by the photoelectric autocollimation theodolite , and the fixed azimuth angle between the normal direction of the prism and the 0° direction of the micro-polarization array , calculate the azimuth angle value of the polarization vector of the polarized light to be measured relative to the zero position of the photoelectric autocollimation theodolite ;in, .

[0012] Optionally, the photoelectric autocollimation theodolite is supported by a theodolite fixing bracket, and the height of the theodolite fixing bracket is continuously adjusted to ensure that the measuring axis of the photoelectric autocollimation theodolite is at the same height as the azimuth indicating prism.

[0013] Optionally, the azimuth angle of the polarization vector of the polarized light to be measured is , is solved by the following steps: Obtain the azimuth angle between the polarization vector of the polarized light to be measured and the micro-polarization array in the 0° direction , and the azimuth angle of the micro-polarization array in the 45° direction , and the azimuth angle of the micro-polarization array with the 90° direction , and the azimuth angle with the micro-polarization array in the 135° direction ; judge Is it satisfied ; If satisfied, take Otherwise, judge Is it satisfied ; If satisfied, take Otherwise, judge Is it satisfied ; If satisfied, take Otherwise, judge Is it satisfied ; If satisfied, take Otherwise, confirm Solving failed.

[0014] Optionally, confirm After the solution fails, the method further includes: re-placing the polarization vector rapid detection device of polarized light in the optical path of the polarized light to be measured, re-adjusting the fixing and leveling base, re-energizing the polarization vector rapid detection device of polarized light, and re-testing until the solution can be successfully calculated. .

[0015] Optionally, the angle between the polarization vector of the polarized light to be measured and the azimuth angle of the micro-polarization array in the 0° direction is , calculated using the following formula: ; in, is the inverse tangent function, 、 、 、 They represent the optical signal energy of the polarized light to be measured passing through the micro-polarization array in the 0°, 45°, 90°, and 135° directions, respectively.

[0016] The present application proposes a method for rapid detection of polarization vectors of polarized light. A rapid detection device for polarized light polarization vectors consisting of four polarized light polarization vector detection channels, a fixing and leveling base, a level, an azimuth indicating prism, and a liquid crystal display panel is designed to achieve the task of detecting polarized light polarization vectors. During detection, the wide-band filter, micro-array polarization device, condenser lens assembly, photodetector, and signal processing assembly of each polarized light polarization vector detection channel are placed within the beam range of the polarized light to be measured, ensuring that the four polarized light polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured. The wide-band filter filters out stray light signals outside the corresponding spectral band of the polarized light to be measured. The micro-array polarization device converts the optical signal into an energy signal after polarization analysis and irradiates it to the condenser lens assembly. After being converged by the condenser lens assembly, it is received by the photodetector and signal processing assembly for signal processing and polarization vector solution. Finally, the polarization vector of the polarized light to be measured is drawn out through the azimuth indicating prism and displayed on the liquid crystal display panel. The device is not affected by the energy of the polarized light to be measured and the detection environment. There is no need to rotate the detection device. It has high detection accuracy and fast detection speed. The detection device has a simple structure, easy assembly, and a relatively simple operation process. It can well adapt to scenarios with high detection accuracy and high detection efficiency requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related technologies, the following is a brief introduction to the drawings required for use in the embodiments of the present application or the description of the related technologies. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 is a longitudinal cross-sectional view of a device for rapid detection of polarization vector of polarized light provided by one embodiment of the present application; Figure 2 1 is a top view of a device for rapid detection of polarization vector of polarized light provided by one embodiment of the present application; Figure 3 This is a schematic diagram of a micro-polarization array of a micro-array polarizer for four polarization light polarization vector detection channels provided by an embodiment of the present application; Figure 4 This is a schematic diagram of a process for detecting a polarized light polarization vector using a polarized light polarization vector rapid detection device, provided by an embodiment of the present application; Figure 5 is a flow chart of a fast method for polarization vector of polarized light provided by another embodiment of the present application; Figure 6 Another embodiment of the present application provides that the azimuth angle of the polarization vector of the polarized light to be measured is Schematic diagram of the solution process. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the various embodiments of the present application, many technical details are proposed to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can be implemented. The division of the following embodiments is only for the convenience of description and should not constitute any limitation on the specific implementation of the present application. The various embodiments can be combined with each other and referenced to each other under the premise of no contradiction.

[0020] An embodiment of the present application proposes a device for rapid detection of polarization vector of polarized light. The implementation details of the device for rapid detection of polarization vector of polarized light proposed in this embodiment are described in detail below. The following content is only the implementation details provided for easy understanding and is not necessary for implementing this solution.

[0021] A longitudinal cross-sectional view of a polarization vector rapid detection device for polarized light proposed in this embodiment can be shown as follows: Figure 1 As shown, its top view can be as Figure 2 shown.

[0022] The detection device includes four polarized light polarization vector detection channels (respectively, a first polarized light polarization vector detection channel 1, a second polarized light polarization vector detection channel 2, a third polarized light polarization vector detection channel 3 and a fourth polarized light polarization vector detection channel 4), a fixing and leveling base 5, a level 6, an azimuth indicating prism 7 and a liquid crystal display panel 8. Each polarized light polarization vector detection channel is composed of a wide-band filter, a micro-array polarization device, a condenser lens assembly, a photodetector and a signal processing component. Taking the first polarized light polarization vector detection channel 1 as an example, its specific components include a wide-band filter 11, a micro-array polarization device 12, a condenser lens assembly 13 and a photodetector and a signal processing component 14.

[0023] The four polarization vector detection channels correspond to four polarization vector directions, each of which is fixed at 45° intervals. The micro-array polarization devices of the four polarization vector detection channels are micro-polarization arrays in the directions of 0°, 45°, 90°, and 135°. Figure 2 、 Figure 3As shown, the microarray polarization device of the first polarized light polarization vector detection channel 1 is a micropolarization array in the 0° direction, the microarray polarization device of the second polarized light polarization vector detection channel 2 is a micropolarization array in the 45° direction, the microarray polarization device of the third polarized light polarization vector detection channel 3 is a micropolarization array in the 90° direction, and the microarray polarization device of the fourth polarized light polarization vector detection channel 4 is a micropolarization array in the 135° direction.

[0024] During detection, the polarization vector rapid detection device of polarized light is placed within the light beam range of the polarized light to be measured to ensure that the four polarized light polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured. The four polarized light polarization vector detection channels each perform signal processing and vector solution on the received optical signal, and finally the polarization vector of the polarized light to be measured is drawn out through the azimuth indicating prism 7 and displayed through the liquid crystal display panel 8.

[0025] The following is a detailed introduction to the various components of the polarization vector rapid detection device for polarized light proposed in this embodiment.

[0026] Taking the first polarized light polarization vector detection channel 1 as an example, during detection, the first polarized light polarization vector detection channel 1 receives the optical signal of the polarized light to be measured, filters out the stray light signal outside the corresponding spectrum band of the polarized light to be measured through a wide-band filter, and then converts it into an energy signal after being polarized by a micro-array polarization device. The signal is irradiated to the condenser assembly, and after being converged by the condenser assembly, it is received by the photodetector and signal processing assembly for signal processing and polarization vector solution.

[0027] After the detection and calculation are completed, the LCD panel will display the calculated azimuth angle of the polarization vector of the polarized light to be measured in real time in the format of degrees / minutes / seconds. .

[0028] In one example, the azimuth angle of the polarization vector of the polarized light to be measured is displayed in real time on the LCD panel. It is 42 degrees 28 minutes 27 seconds (42°28′27″).

[0029] It should be noted that The calculation basis is the output of the four polarization vector detection channels, that is, the azimuth angle between the polarization vector of the polarized light to be measured and the micro-polarization array in the 0° direction. , and the azimuth angle of the micro-polarization array in the 45° direction , and the azimuth angle of the micro-polarization array with the 90° direction and the azimuth angle of the micro-polarization array with a 135° direction .

[0030] The fixing and leveling base 5 serves as the base of the entire polarized light polarization vector rapid detection device, and is used to support four polarized light polarization vector detection channels, a level 6, an azimuth indicating prism 7, and a liquid crystal display panel 8. Before the detection begins, the fixing and leveling base 5 needs to be adjusted until the level is in the middle position to ensure that the entire polarized light polarization vector rapid detection device is in a horizontal state, thereby effectively ensuring that the final calculated azimuth angle of the polarized light polarization vector of the polarized light to be measured is correct. precision.

[0031] In order to use the polarization vector rapid detection device to detect the polarized light to be measured (the specific process of the detection can be as follows Figure 4 As shown), another embodiment of the present application proposes a method for rapid detection of polarization vector of polarized light, which is implemented based on a device for rapid detection of polarization vector of polarized light as described above. The following is a detailed description of the implementation details of the method for rapid detection of polarization vector of polarized light proposed in this embodiment. The following content is only the relevant implementation details provided for the convenience of understanding and is not necessary for the implementation of this solution. The specific process of the method for rapid detection of polarization vector of polarized light proposed in this embodiment can be as follows: Figure 5 Shown, including: S1, placing the polarization vector rapid detection device of polarized light in the optical path of the polarized light to be measured, ensuring that the four polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured.

[0032] In the specific implementation, Figure 4 As shown, after completing the design and assembly of the polarization vector rapid detection device for polarized light, it is necessary to place the polarization vector rapid detection device in the optical path of the polarized light to be measured, ensuring that all four polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured. The polarized light to be measured can be generated by the polarized light generating device to be measured.

[0033] S2, adjust the fixing and leveling base until the level is in the middle position, so that the entire polarization vector rapid detection device for polarized light is in a horizontal state.

[0034] In a specific implementation, whether the polarization vector rapid detection device of polarized light can be in a horizontal state will directly affect the azimuth angle of the polarization vector of the polarized light to be measured that is finally solved. Therefore, after placing the polarization vector rapid detection device of polarized light in the optical path of the polarized light to be measured, it is necessary to continuously adjust the fixing and leveling base until the level is in the middle position, so that the entire polarization vector rapid detection device of polarized light is in a horizontal state.

[0035] S3, power on the polarization vector rapid detection device for polarized light. After the detection is completed, the polarization vector of the polarized light to be measured is drawn out by the azimuth indicating prism, and the calculated azimuth angle of the polarization vector of the polarized light to be measured is displayed in real time in the format of degrees, minutes and seconds on the liquid crystal display panel. .

[0036] In a specific implementation, after all preparatory work is completed, the polarization vector rapid detection device of polarized light can be powered on, so that the polarization vector rapid detection device of polarized light enters the working state and starts to detect the polarized light to be measured. After the detection is completed, the polarization vector of the polarized light to be measured is drawn out by the azimuth indicating prism, and the calculated azimuth angle of the polarization vector of the polarized light to be measured is displayed in real time in the format of degrees, minutes and seconds through the liquid crystal display panel. .

[0037] In one example, the azimuth angle of the polarization vector of the polarized light to be measured is The solution process can be as follows Figure 6 As shown, the polarization vector rapid detection device of polarized light needs to obtain the azimuth angle between the polarization vector of the polarized light to be measured and the micro-polarization array in the 0° direction. , and the azimuth angle of the micro-polarization array in the 45° direction , and the azimuth angle of the micro-polarization array with the 90° direction , and the azimuth angle with the micro-polarization array in the 135° direction , next, based on 、 、 、 To perform the calculation.

[0038] First, we need to judge Is it satisfied .

[0039] If satisfied, take Otherwise, judge Is it satisfied .

[0040] If satisfied, take Otherwise, judge Is it satisfied .

[0041] If satisfied, take Otherwise, judge Is it satisfied .

[0042] If satisfied, take Otherwise, confirm Solving failed.

[0043] In one example, after confirming If the solution fails, it is necessary to re-place the polarization vector rapid detection device in the optical path of the polarized light to be measured, readjust the fixing and leveling base, re-power on the polarization vector rapid detection device, and re-test until the solution can be successfully obtained. .

[0044] In one example, the angle between the polarization vector of the polarized light to be measured and the azimuth angle of the micro-polarization array in the 0° direction is , can be calculated by the following formula: ; in, is the inverse tangent function, 、 、 、 They represent the optical signal energy of the polarized light to be measured passing through the micro-polarization array in the 0°, 45°, 90°, and 135° directions, respectively.

[0045] and The calculation method is similar to that of the polarization vector of the polarized light to be measured and the azimuth angle of the micro-polarization array in the 45° direction. , and the azimuth angle of the micro-polarization array with the 90° direction , and the azimuth angle of the micro-polarization array in the 135° direction , can be calculated by the following formula: ; ; .

[0046] S4. Set up a photoelectric autocollimation theodolite at the position facing the azimuth indicating prism of the polarization vector rapid detection device of polarized light. Ensure that the measuring axis of the photoelectric autocollimation theodolite is at the same height as the azimuth indicating prism and can be aligned with the azimuth indicating prism. The measured azimuth angle of the photoelectric autocollimation theodolite to the azimuth indicating prism is .

[0047] In one example, in order to further improve the detection accuracy, a photoelectric autocollimation theodolite is set up at the position opposite to the azimuth indicating prism of the polarization vector rapid detection device of polarized light, ensuring that the measuring axis of the photoelectric autocollimation theodolite is at the same height as the azimuth indicating prism and can be aligned with the azimuth indicating prism. The measured azimuth angle value of the photoelectric autocollimation theodolite to the azimuth indicating prism is recorded as .

[0048] In one example, Figure 4As shown, the photoelectric autocollimation theodolite is supported by a theodolite fixing bracket. By continuously adjusting the height of the theodolite fixing bracket, the measuring axis of the photoelectric autocollimation theodolite is ensured to be at the same height as the azimuth indicating prism.

[0049] S5, based on the calculated azimuth angle of the polarization vector of the polarized light to be measured , the measured azimuth angle value of the azimuth indicating prism by the photoelectric autocollimation theodolite , and the fixed azimuth angle between the normal direction of the prism and the 0° direction of the micro-polarization array , calculate the azimuth angle value of the polarization vector of the polarized light to be measured relative to the zero position of the photoelectric autocollimation theodolite .

[0050] In the specific implementation, the measured azimuth angle value of the azimuth indicating prism by the photoelectric autocollimation theodolite is obtained. After that, the azimuth angle of the polarization vector of the polarized light to be measured can be calculated. , the measured azimuth angle value of the azimuth indicating prism by the photoelectric autocollimation theodolite , and the fixed azimuth angle between the normal direction of the prism and the 0° direction of the micro-polarization array , calculate the azimuth angle value of the polarization vector of the polarized light to be measured relative to the zero position of the photoelectric autocollimation theodolite , Compared to In terms of It has higher accuracy and is more applicable in some scenarios.

[0051] This embodiment proposes a method for rapid polarization vector detection of polarized light. A rapid polarization vector detection device consisting of four polarization vector detection channels, a fixed and leveling base, a level, an azimuth indicator prism, and a liquid crystal display panel is designed to perform polarization vector detection. During detection, the broadband filter, micro-array polarization device, condenser lens assembly, photodetector, and signal processing component of each polarization vector detection channel are placed within the beam range of the polarized light to be measured, ensuring that all four polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured. The broadband filter filters out stray light signals outside the corresponding spectral band of the polarized light to be measured. The micro-array polarization device performs polarization analysis, converts the optical signal into an energy signal, and irradiates the condenser lens assembly. After convergence by the condenser lens assembly, the light is received by the photodetector and signal processing component for signal processing and polarization vector calculation. Finally, the polarization vector of the polarized light to be measured is extracted through the azimuth indicator prism and displayed on the liquid crystal display panel. The device is not affected by the energy of the polarized light to be measured and the detection environment. There is no need to rotate the detection device. It has high detection accuracy and fast detection speed. The detection device has a simple structure, easy assembly, and a relatively simple operation process. It can well adapt to scenarios with high detection accuracy and high detection efficiency requirements.

[0052] The steps of the various methods above are divided for clarity of description only. During implementation, they can be combined into a single step, or some steps can be broken down into multiple steps. As long as they contain the same logical relationships, they are all within the scope of protection of this application. Adding minor modifications or introducing minor design changes to the algorithm or process, but not changing the core design of the algorithm or process, are also within the scope of protection of this application.

[0053] It is not difficult to find that this embodiment is a method embodiment corresponding to the above-mentioned device embodiment, and this embodiment can be implemented in conjunction with the above-mentioned device embodiment. The relevant technical details and technical effects mentioned in the above-mentioned device embodiment are still valid in this embodiment, and to reduce repetition, they are not repeated here. Accordingly, the relevant technical details mentioned in this embodiment can also be applied to the above-mentioned device embodiment.

[0054] Those skilled in the art will appreciate that the above embodiments are specific embodiments provided for implementing the present application. In actual applications, various changes in form and details may be made without departing from the spirit and scope of the present application. Those skilled in the art will appreciate that improvements and modifications may be made without departing from the principles of the present application, and such improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A polarization vector rapid detection device for polarized light, characterized in that: It includes four polarized light polarization vector detection channels, a fixing and leveling base, a level, an azimuth indicating prism and a liquid crystal display panel. Each polarized light polarization vector detection channel is composed of a wide-band filter, a micro-array polarization device, a condenser lens assembly, a photodetector and a signal processing component. The four polarization vector detection channels correspond to four polarization vector directions, each of which is fixed at 45° intervals. The micro-array polarization devices of the four polarization vector detection channels are micro-polarization arrays in the directions of 0°, 45°, 90°, and 135° respectively. During detection, the polarization vector rapid detection device of polarized light is placed within the beam range of the polarized light to be measured, ensuring that the four polarized light polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured. The four polarized light polarization vector detection channels each perform signal processing and vector calculation on the received optical signal, and finally draw out the polarization vector of the polarized light to be measured through the azimuth indicating prism and display it through the liquid crystal display panel.

2. The device for rapid detection of polarization vector of polarized light according to claim 1, wherein: During detection, after receiving the optical signal, each polarization vector detection channel filters out stray light signals outside the corresponding spectral band of the polarized light to be measured through a wide-band filter. After being polarized by a micro-array polarization device, it is converted into an energy signal and irradiated to the condenser assembly. After being converged by the condenser assembly, it is received by the photodetector and signal processing assembly for signal processing and polarization vector solution.

3. The device for rapid detection of polarization vector of polarized light according to claim 1, wherein: After the test is completed, the liquid crystal display panel will display the calculated azimuth angle of the polarization vector of the polarized light to be tested in real time in the format of degrees / minutes / seconds.

4. The device for rapid detection of polarization vector of polarized light according to claim 1, wherein: The fixing and leveling base is used to support four polarized light polarization vector detection channels, a level, an azimuth indicating prism, and a liquid crystal display panel. Before the test begins, adjust the fixing and leveling base until the level is in the middle position to ensure that the entire polarized light polarization vector rapid detection device is in a horizontal state.

5. A method for rapid detection of polarization vector of polarized light, implemented based on a device for rapid detection of polarization vector of polarized light according to any one of claims 1 to 4, characterized in that: The method comprises: The polarization vector fast detection device is placed in the optical path of the polarized light to be measured, ensuring that the four polarization vector detection channels can effectively receive the optical signal of the polarized light to be measured; Adjust the fixing and leveling base until the level is in the middle position, so that the entire polarized light polarization vector rapid detection device is in a horizontal state; Power on the polarization vector rapid detection device. After the detection is completed, the polarization vector of the polarized light to be measured is drawn out by the azimuth indicating prism, and the azimuth angle of the polarization vector of the polarized light to be measured is displayed in real time on the LCD panel in the format of degrees, minutes and seconds. .

6. A method for rapid detection of polarization vector of polarized light according to claim 5, characterized in that: After the detection is completed, the method further includes: Set up a photoelectric autocollimation theodolite at the position facing the azimuth indicating prism of the polarization vector rapid detection device of polarized light, and ensure that the measuring axis of the photoelectric autocollimation theodolite is at the same height as the azimuth indicating prism and can be aligned with the azimuth indicating prism. The measured azimuth angle of the photoelectric autocollimation theodolite to the azimuth indicating prism is recorded as ; Based on the calculated azimuth angle of the polarization vector of the polarized light to be measured , the measured azimuth angle value of the azimuth indicating prism by the photoelectric autocollimation theodolite , and the fixed azimuth angle between the normal direction of the prism and the 0° direction of the micro-polarization array , calculate the azimuth angle value of the polarization vector of the polarized light to be measured relative to the zero position of the photoelectric autocollimation theodolite ; in, .

7. A method for rapid detection of polarization vector of polarized light according to claim 6, characterized in that: The photoelectric autocollimation theodolite is supported by a theodolite fixing bracket. By continuously adjusting the height of the theodolite fixing bracket, the measuring axis of the photoelectric autocollimation theodolite is ensured to be at the same height as the azimuth indicating prism.

8. The method for rapid detection of polarization vector of polarized light according to claim 5, wherein: The azimuth angle of the polarization vector of the polarized light to be measured , is solved by the following steps: Obtain the azimuth angle between the polarization vector of the polarized light to be measured and the micro-polarization array in the 0° direction , and the azimuth angle of the micro-polarization array in the 45° direction , and the azimuth angle of the micro-polarization array with the 90° direction , and the azimuth angle of the micro-polarization array with respect to the 135° direction ; judge Is it satisfied ; If satisfied, take Otherwise, judge Is it satisfied ; If satisfied, take Otherwise, judge Is it satisfied ; If satisfied, take Otherwise, judge Is it satisfied ; If satisfied, take Otherwise, confirm Solving failed.

9. A method for rapid detection of polarization vector of polarized light according to claim 8, characterized in that: In confirmation After the solution fails, the method further includes: Re-place the polarization vector rapid detection device of polarized light in the optical path of the polarized light to be measured, readjust the fixing and leveling base, re-power on the polarization vector rapid detection device of polarized light, and re-test until the polarization vector can be successfully calculated. .

10. The method for rapid detection of polarization vector of polarized light according to claim 8, wherein: The azimuth angle between the polarization vector of the polarized light to be measured and the micro-polarization array in the 0° direction , calculated using the following formula: ； in, is the inverse tangent function, 、 、 、 They represent the optical signal energy of the polarized light to be measured passing through the micro-polarization array in the 0°, 45°, 90°, and 135° directions, respectively.

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