Optical tracking equipment detection platform

Abstract

The invention relates to the technical field of optical detection, in particular to an optical tracking equipment detection platform which comprises five supporting trusses fixed to the top face of the platform and parallel light pipes fixed to the supporting trusses, detection points are arranged on the top face of the platform, and the parallel light pipes are fixed to the supporting trusses. The five supporting trusses surround the periphery of the detection point, the four supporting trusses are each fixedly provided with a parallel light pipe, the four parallel light pipes are distributed in the four directions of a target object in the mode of four different overlook and look-up angles, and the parallel light pipes are distributed in the other supporting truss in the mode of four different look-up and look-down angles. The light photoelectric tracking equipment detection platform is distributed at the multi-dimensional height of a target object in a top view and bottom view manner, and can complete the azimuth precision test of the detection point target object, so that the detection precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of optical detection technology, and in particular to an optical tracking device detection platform. Background Art

[0002] The optoelectronic tracking device is one of the main equipment of the measurement and control system. Its main function is to stably track various missiles, spacecraft and other targets, and accurately provide the angular position data of the above targets. Therefore, the angular measurement accuracy of the optoelectronic tracking device is one of the key technical indicators. The existing detection platform relies on a group of optoelectronic trackers to implement signal detection on the ground objects. This detection method has poor detection effect. When a group of optoelectronic trackers is based on multi-angle detection, the detection time is long, the internal light source is continuously powered on for a long time, and the heat fed back to the lens by the optical signal is large. When the temperature exceeds 20℃±5℃, the optical material of the lens will be unstable, which will affect the accuracy of the optical signal feedback. Summary of the invention

[0003] In order to solve the above problems, the present invention provides the following technical solutions to solve at least one of the above technical problems:

[0004] An optical tracking device detection platform comprises a platform, a supporting truss fixed on the top surface of the platform, and a collimator fixed on the supporting truss. A detection point is arranged on the top surface of the platform, and the supporting trusses are in five locations, and the five supporting trusses surround the periphery of the detection point, wherein a collimator is fixed on each of four supporting trusses, and the collimators at four locations are at four different azimuth angles relative to the detection point, and five collimators are fixed from top to bottom on the other supporting truss, and the five collimators face the detection point at different downward or upward angles; the collimator comprises an external middle tube, a primary mirror assembly arranged at the front end of the middle tube, a secondary mirror assembly arranged in the middle tube, a light source arranged in the middle tube, and also comprises a light source arranged in the middle tube and An expansion tube is located at the rear side of the secondary mirror assembly, and an exhaust mechanism is arranged on the rear side of the middle tube, the exhaust mechanism includes an exhaust pipe fixed on the rear end of the middle tube, and also includes a driving rod installed in the expansion tube, one end of the driving rod is connected to the front end of the expansion tube, and the other end of the driving rod is connected to the rear end of the exhaust pipe, and an air port is arranged at the rear end of the middle tube, and the air port is connected to the front and rear of the exhaust pipe. The secondary mirror assembly includes a back plate fixed in the middle tube, a secondary mirror tube installed in the middle of the back plate, and a secondary mirror fixed in the secondary mirror tube, a clamping cavity is formed between the back plate and the rear end of the middle tube, the expansion tube and the light source are located in the clamping cavity, the light source is aligned with the secondary mirror tube, the tube cavity of the secondary mirror tube is coaxial with the air port, and the primary mirror assembly includes a pointing laser installed on the front side thereof.

[0005] As a further preferred embodiment, the expansion tubes are two, one above and one below, and a driving rod is installed in both expansion tubes. A pressing plate is fixed on the outside of the driving rod, and the pressing plate is located at the outer end of the exhaust pipe and close to the outer end of the exhaust pipe.

[0006] As a further preferred embodiment, a cone thorn seat is installed on one surface of the pressing sheet facing the expansion tube, a through hole is provided on the cone thorn seat, and a sealing port is provided on a side of the expansion tube facing the cone thorn seat. When the cone thorn seat is inserted into the sealing port, the sealing port is opened by the conical surface, and external air enters the exhaust pipe through the through hole.

[0007] As a further preferred embodiment, a fan is fixed on the driving rod, and an air inlet end of the fan is connected to an outer end of the conical seat. When the conical seat is inserted into the sealing port, the fan is turned on and air is injected into the exhaust pipe through the sealing port.

[0008] As a further preferred embodiment, an expansion thread is provided in the length direction of the expansion tube, and a memory alloy is wound inside the expansion tube along the expansion thread. The lengths of the two expansion tubes are consistent, the lengths of the expansion threads on the two expansion tubes are consistent, and the winding lengths of the memory alloy on the two expansion tubes are consistent.

[0009] As a further preference, two upper and lower conduits are fixed to the rear end of the middle cylinder, and the upper and lower parts of the driving rod are slidably fitted in the two conduits. The conduits are metal tubes, and the outer ends of the conduits are longer than the rear end of the middle cylinder.

[0010] As a further preference, an air duct is opened on the back plate of the secondary mirror assembly, one end of the air duct is communicated with the clamp cavity, and the other end is communicated with the cavity where the primary mirror assembly is located, and a plurality of the air ducts are opened in a circular array, and the plurality of the air ducts surround the periphery of the secondary mirror tube and are close to the secondary mirror tube.

[0011] As further preferred, the primary mirror assembly includes a three-leaf plate, a middle portion of which is provided with an assembly hole, the primary mirror assembly also includes a primary mirror fixed in the assembly hole, the primary mirror and the secondary mirror are on the same axis, three channels communicating with the inner cavity of the middle cylinder are formed on the three-leaf plate, and the pointing laser is installed on the front side of the primary mirror.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The light source in each collimator emits light, which is magnified by the secondary mirror and irradiated onto the primary mirror, and then emitted to the target object by the primary mirror. Since the four supporting trusses are arranged at the four directions of the target object, and the collimators on the four supporting trusses are distributed at the four directions of the target object in four different overlooking and upward viewing angles, and on another supporting truss, they are distributed at the multi-dimensional height of the target object in the overlooking and upward viewing angles, the optical photoelectric tracking equipment detection platform can complete the azimuth accuracy test of the detection point target object, thereby improving the detection accuracy.

[0014] 2. The collimator also has an automatic heat dissipation function. The heat generated by the light source is fed back to the clamping cavity between the back plate and the rear end of the middle tube. When the temperature in the clamping cavity reaches 20℃±5℃, it will affect the optical surfaces of the primary mirror and the secondary mirror. At this time, the memory alloy is heated and elongated, and the heat is discharged from the clamping cavity to the exhaust pipe through the air port. At the same time, the expansion tube is heated and elongated. The thrust generated by the expansion tube being heated and elongated and the memory alloy being heated and elongated drives the driving rod to be dragged forward, and the pressing piece is dragged forward by the driving rod, and the cone thorn seat is dragged forward by the pressing piece. The conical tip of the cone thorn seat penetrates into the sealing port and drags the exhaust pipe forward. As the exhaust pipe is compressed and the tip of the cone thorn seat penetrates into the sealing port, the heat in the exhaust pipe is released outward from the through hole. As the exhaust pipe is compressed forward, the heat in the clamping cavity is rapidly discharged outward until the temperature in the clamping cavity drops. The secondary mirror is always protected by low temperature, and the optical surface of the secondary mirror will not be deformed, ensuring that the detection accuracy is not affected by temperature.

[0015] 3. When the exhaust pipe is compressed forward, in addition to releasing part of the hot air outward through the through holes on the cone seat, part of the heat in the cavity will also be released forward through the airway. This part of the hot air continues to be released forward to the outside of the collimator through the channel on the three-leaf plate, and the primary mirror and the pointing laser are installed on the front side of the collimator. When this part of the heat reaches the primary mirror and the pointing laser in the form of squeezed exhaust, it will be released forward through the channel. Therefore, it will not affect the primary mirror and the pointing laser. The heat in the cavity is released through the front and rear channels, which improves the exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of an optical tracking device detection platform provided by an embodiment of the present invention under a first viewing angle;

[0017] Figure 2 A schematic diagram of an optical tracking device detection platform under a second viewing angle provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of only one set of collimators in an optical tracking device detection platform provided by an embodiment of the present invention;

[0019] Figure 4For the implementation mode of the present invention, Figure 3 A schematic diagram of the structure after being cut open from another perspective;

[0020] Figure 5 For the implementation mode of the present invention, Figure 4 The enlarged schematic diagram of the A part is shown;

[0021] Figure 6 For the implementation mode of the present invention, Figure 4 The schematic diagram from another perspective after the section is introduced;

[0022] Figure 7 It is a schematic diagram of the planar structure after being cut apart in an embodiment of the present invention;

[0023] Figure 8 For the implementation mode of the present invention, Figure 7 The enlarged schematic diagram of the B part is shown;

[0024] Fig. 9 It is a plan view schematically showing an expansion tube with a sealed opening at one end in accordance with an embodiment of the present invention.

[0025] In the figure: 1. platform; 2. supporting truss; 3. collimator; 4. detection point; 5. middle tube; 6. primary mirror assembly; 7. secondary mirror assembly; 8. light source; 9. expansion tube; 10. exhaust mechanism; 11. exhaust pipe; 12. drive rod; 13. air port; 14. back plate; 15. secondary mirror tube; 16. secondary mirror; 17. clamping cavity; 18. pressing sheet; 19. cone thorn seat; 20. through hole; 21. sealing port; 22. memory alloy; 23. conduit; 24. airway; 25. three-leaf plate; 26. assembly hole; 27. primary mirror; 28. channel; 29. ​​fan; 30. pointing laser. DETAILED DESCRIPTION

[0026] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0027] In one embodiment, if Figure 1-Figure 9 As shown: This embodiment provides an optical tracking device detection platform, including a platform 1, a support truss 2 fixed on the top surface of the platform 1, and a collimator 3 fixed on the support truss 2. A detection point 4 is arranged on the top surface of the platform 1, and there are five support trusses 2, and the five support trusses 2 surround the periphery of the detection point 4, wherein four support trusses 2 are each fixed with a collimator 3, and the four collimators 3 are at four different azimuth angles relative to the detection point 4, and another support truss 2 is fixed with five collimators 3 from top to bottom, and the five collimators 3 face the detection point 4 at different downward or upward angles;

[0028] like Figure 4 , Figure 6 As shown, the collimator 3 includes an external middle tube 5, a primary mirror assembly 6 arranged at the front end of the middle tube 5, a secondary mirror assembly 7 arranged in the middle tube 5, a light source 8 arranged in the middle tube 5, and an expansion tube 9 arranged in the middle tube 5 and located at the rear side of the secondary mirror assembly 7. An exhaust mechanism 10 is arranged at the rear side of the middle tube 5. The exhaust mechanism 10 includes an exhaust pipe 11 fixed to the rear end of the middle tube 5, and also includes a driving rod 12 installed in the expansion tube 9, one end of the driving rod 12 is connected to the front end of the expansion tube 9, and the other end of the driving rod 12 is connected to the exhaust pipe 11. The rear end of the air pipe 11 and the rear end of the middle tube 5 are provided with an air port 13, and the air port 13 is connected to the exhaust pipe 11 front to back. The secondary mirror assembly 7 includes a back plate 14 fixed in the middle tube 5, a secondary mirror tube 15 installed in the middle of the back plate 14, and a secondary mirror 16 fixed in the secondary mirror tube 15. A clamping cavity 17 is formed between the back plate 14 and the rear end of the middle tube 5. The expansion tube 9 and the light source 8 are located in the clamping cavity 17. The light source 8 is aligned with the secondary mirror tube 15. The tube cavity of the secondary mirror tube 15 is coaxial with the air port 13. The primary mirror assembly 6 includes a pointing laser 30 installed on the front side thereof.

[0029] The expansion tubes 9 consist of two upper and lower tubes. A driving rod 12 is installed in both expansion tubes 9 . A pressing piece 18 is fixed to the outside of the driving rod 12 . The pressing piece 18 is located at the outer end of the exhaust pipe 11 and is close to the outer end of the exhaust pipe 11 .

[0030] A conical seat 19 is installed on one side of the pressing sheet 18 facing the expansion tube 9, and a through hole 20 is opened on the conical seat 19. A sealing opening 21 is provided on the side of the expansion tube 9 facing the conical seat 19. When the conical seat 19 is inserted into the sealing opening 21, the sealing opening 21 is opened by using the conical surface, and at the same time, external air enters the exhaust pipe 11 through the through hole 20.

[0031] An expansion thread is provided in the length direction of the expansion tube 9, and a memory alloy 22 is wound inside the expansion tube 9 along the expansion thread. The two expansion tubes 9 have the same length, the expansion threads on the two expansion tubes 9 have the same length, and the winding length of the memory alloy 22 on the two expansion tubes 9 is the same.

[0032] Two upper and lower guide tubes 23 are fixed to the rear end of the middle cylinder 5 , and the upper and lower parts of the driving rod 12 are slidably fitted in the two guide tubes 23 . The guide tubes 23 are metal tubes, and the outer ends of the guide tubes 23 are longer than the rear end of the middle cylinder 5 .

[0033] An air duct 24 is provided on the back plate 14 of the secondary mirror assembly 7, one end of the air duct 24 is communicated with the clamp cavity 17, and the other end is communicated with the cavity where the primary mirror assembly 6 is located. A plurality of air ducts 24 are provided in a circular array, and the plurality of air ducts 24 surround the periphery of the secondary mirror tube 15 and are close to the secondary mirror tube 15.

[0034] The primary mirror assembly 6 includes a three-leaf plate 25, an assembly hole 26 is formed in the middle of the three-leaf plate 25, the primary mirror assembly 6 also includes a primary mirror 27 fixed in the assembly hole 26, the primary mirror 27 and the secondary mirror 16 are on the same axis, three channels 28 communicating with the inner cavity of the middle tube 5 are formed on the three-leaf plate 25, and the primary mirror assembly 6 also includes a pointing laser 30 installed on the front side thereof.

[0035] Working principle and effect: The target object is located at the detection point 4. The light source in each parallel light tube 3 emits light, which is magnified by the secondary mirror 16 and irradiated to the primary mirror 27. The primary mirror 27 emits light to the target object. Figure 1 As shown, since the four supporting trusses 2 are arranged at the four orientations of the landmark object, and the parallel light tubes 3 on the four supporting trusses 2 are distributed at the four orientations of the landmark object in four different downward and upward viewing angles, and since on another supporting truss 2, they are distributed at the multi-dimensional heights of the landmark object in downward and upward viewing angles, the optical photoelectric tracking device detection platform can complete the orientation accuracy test of the landmark object (photoelectric tracking device signal) at the detection point 4, thereby improving the detection accuracy.

[0036] In addition, the collimator 3 also has an automatic heat dissipation function, which can ensure that the optical surfaces of the primary mirror 27 and the secondary mirror 16 will not be deformed, ensure that the laser emission light beam coincides with the light beams of the two mirrors and is coaxial, and at the same time ensure that the optical signal is coaxial with the pointing laser 30, thereby improving the optical signal test quality of the detection point 4 mark object.

[0037] The temperature change in the parallel light tube 3 is mainly caused by the light source 8. The heat generated by the light source 8 is fed back to the clamping cavity 17 between the back plate 14 and the rear end of the middle tube 5. When the temperature in the clamping cavity 17 reaches 20°C ± 5°C, it will affect the optical surfaces of the primary mirror 27 and the secondary mirror 16. At this time, the memory alloy 22 is heated and elongated, and the heat is discharged from the clamping cavity 17 to the exhaust pipe 11 through the air port 13. At the same time, the expansion tube 9 is heated and elongated. The thrust generated by the expansion tube 9 being heated and elongated and the memory alloy 22 being heated and elongated drives the driving rod 12 to be dragged forward (toward the back plate 14). The driving rod 12 drags the pressing plate 18 forward, and the pressing plate 18 drags the cone thorn seat 19 forward. The conical tip of the cone thorn seat 19 penetrates into the sealing port 21 and drags the exhaust pipe 11 forward. As the exhaust pipe 11 is compressed forward, the tip of the cone thorn seat 19 penetrates into the sealing port 21, so that the exhaust pipe 11 is compressed forward. The heat in 11 is released outwardly from the through hole 20. As the exhaust pipe 11 is compressed forward, the heat in the clamping cavity 17 is quickly discharged outward until the temperature in the clamping cavity 17 drops. As the temperature in the clamping cavity 17 drops, the memory alloy 22 cools and recovers to become shorter. As the shape of the memory alloy 22 is restored and the length is shortened, the length of the expansion tube 9 is also compressed and shortened. At this time, the driving rod 12 moves backward, and the driving rod 12 drives the pressing plate 18 to move backward, and the pressing plate 18 drives the cone thorn seat 19 to move backward, so that the cone thorn seat 19 leaves the sealing port 21, and the sealing port 21 is closed. The exhaust pipe 11 resumes sealing and recovers to become longer at the same time. When the temperature in the clamping cavity 17 reaches 20℃±5℃ again, the exhaust pipe 11 is exhausted again through the above-mentioned action, and the clamping cavity 17 is cooled again. The secondary mirror 16 is always in a low temperature state, the secondary mirror 16 is always protected by the low temperature, and the optical surface of the secondary mirror 16 will not be deformed. When the exhaust pipe 11 is compressed forward, in addition to releasing part of the hot air outward through the through hole 20 on the cone thorn seat 19, part of the heat in the clamping cavity 17 is also released forward through the air channel 24. This part of the hot air passes through the channel 28 on the three-leaf plate 25 and continues to be released forward to the outside of the collimator 3. The main mirror 27 and the pointing laser 30 are installed on the front side of the collimator 3. When this part of the heat reaches the main mirror 27 and the pointing laser 30 in the form of extruded exhaust, it will be released forward through the channel 28. Therefore, the high temperature will not affect the main mirror 27 and the pointing laser 30. The heat in the clamping cavity 17 is released through the front and rear channels, which improves the exhaust efficiency.

[0038] In another embodiment, if Figure 6As shown, a fan 29 is fixed on the driving rod 12, and the air inlet end of the fan 29 is connected to the outer end of the cone thorn seat 19. When the cone thorn seat 19 is inserted into the sealing port 21, the fan 29 is turned on, and air is injected into the exhaust pipe 11 through the sealing port 21. A temperature sensor is set in the clamping cavity 17, and a controller is installed on the fan 29. When the temperature in the clamping cavity 17 reaches 20℃±5℃, the temperature sensor feeds back a signal to the controller, and the controller controls the fan 29 to rotate. At this time, the expansion tube 9 and the memory alloy 22 become longer, and the driving rod 12 is dragged to drive the pressing sheet 18 to move forward, and the pressing sheet 18 passes the cone thorn seat 19 through the sealing port 21 and pierces the exhaust pipe 11. When the exhaust pipe 11 is compressed and shortened, the fan 29 releases the heat in the clamping cavity 17 forward through the airway 24, and the fan 29 also blows air to the exhaust pipe 11 through the air outlet pipe. As the exhaust pipe 11 is compressed forward, the hot air in the clamping cavity 17 is quickly released forward. After the temperature of the clamping cavity 17 is reduced, the expansion tube 9 and the memory alloy 22 shorten and recover, and the expansion tube 9 pushes the drive rod 12 backward to reset the cone thorn seat 19, so that the cone thorn seat 19 leaves the exhaust pipe 11, the fan 29 will also move away from the exhaust pipe 11, and the air outlet pipe on the fan 29 will also leave the exhaust pipe 11. The fan 29 stops and the blowing stops.

[0039] The above orientation designations do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme, and the orientations are described relatively with reference to the figures. In essence, the specific orientations of the components are described according to their actual installation and actual use as well as the customary orientations of technicians in this field. This is hereby explained.

[0040] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical tracking device detection platform, characterized in that: The invention comprises a platform (1), a supporting truss (2) fixed on the top surface of the platform (1), and a collimator (3) fixed on the supporting truss (2); a detection point (4) is arranged on the top surface of the platform (1); the supporting trusses (2) are five in number, and the five supporting trusses (2) surround the periphery of the detection point (4); a collimator (3) is fixed on each of four supporting trusses (2); the collimators (3) at the four locations are at four different azimuth angles relative to the detection point (4); and five collimators (3) are fixed from top to bottom on the other supporting truss (2). The five collimators (3) face the detection point (4) at different downward or upward viewing angles; the collimators (3) include an external middle tube (5), a primary mirror assembly (6) arranged at the front end of the middle tube (5), a secondary mirror assembly (7) arranged in the middle tube (5), a light source (8) arranged in the middle tube (5), and an expansion tube (9) arranged in the middle tube (5) and located at the rear side of the secondary mirror assembly (7); an exhaust mechanism (10) is arranged at the rear side of the middle tube (5), and the exhaust mechanism (10) includes an exhaust pipe (11) fixed to the rear end of the middle tube (5).

2. The optical tracking device detection platform according to claim 1, characterized in that: The invention also comprises a driving rod (12) installed in the expansion tube (9), one end of the driving rod (12) is connected to the front end of the expansion tube (9), and the other end of the driving rod (12) is connected to the rear end of the exhaust pipe (11); the rear end of the middle tube (5) is provided with an air port (13), and the air port (13) is connected to the exhaust pipe (11) front to back; the secondary mirror assembly (7) comprises a back plate (14) fixed in the middle tube (5), a secondary mirror tube (15) installed in the middle of the back plate (14), and a secondary mirror (16) fixed in the secondary mirror tube (15); the back plate (14) and the rear end of the middle tube (5) are connected to each other. A cavity (17) is formed between the ends of the primary mirror assembly (6), the expansion tube (9) and the light source (8) are located in the cavity (17), the light source (8) is aligned with the secondary mirror tube (15), the cavity of the secondary mirror tube (15) is coaxial with the air port (13), the primary mirror assembly (6) comprises a pointing laser (30) installed on the front side thereof, the expansion tube (9) comprises two tubes, one above the other, a driving rod (12) is installed in the two expansion tubes (9), a pressing plate (18) is fixed on the outer side of the driving rod (12), and the pressing plate (18) is located at the outer end of the exhaust pipe (11) and close to the outer end of the exhaust pipe (11).

3. The optical tracking device detection platform according to claim 2, characterized in that: The pressing sheet (18) is provided with a conical seat (19) on one side of the expansion tube (9), a through hole (20) is provided on the conical seat (19), and a sealing opening (21) is provided on the side of the expansion tube (9) facing the conical seat (19). When the conical seat (19) is inserted into the sealing opening (21), the sealing opening (21) is opened by the conical surface, and external air is allowed to enter the exhaust pipe (11) through the through hole (20).

4. The optical tracking device detection platform according to claim 3, characterized in that: A fan (29) is fixed on the driving rod (12), and an air inlet end of the fan (29) is connected to the outer end of the conical seat (19). When the conical seat (19) is inserted into the sealing port (21), the fan (29) is turned on and air is injected into the exhaust pipe (11) through the sealing port (21).

5. The optical tracking device detection platform according to claim 4, characterized in that: An expansion thread is provided in the length direction of the expansion tube (9), and a memory alloy (22) is wound inside the expansion tube (9) along the expansion thread. The two expansion tubes (9) have the same length, the expansion threads on the two expansion tubes (9) have the same length, and the winding length of the memory alloy (22) on the two expansion tubes (9) is the same.

6. The optical tracking device detection platform according to claim 5, characterized in that: Two upper and lower conduits (23) are fixed to the rear end of the middle cylinder (5), and the upper and lower parts of the driving rod (12) are slidably fitted in the two conduits (23). The conduits (23) are metal tubes, and the outer ends of the conduits (23) are longer than the rear end of the middle cylinder (5).

7. The optical tracking device detection platform according to claim 6, characterized in that: An air channel (24) is provided on the back plate (14) of the secondary mirror assembly (7), one end of the air channel (24) is communicated with the clamping cavity (17), and the other end is communicated with the cavity where the primary mirror assembly (6) is located, and a plurality of the air channels (24) are provided in a circular array, and the plurality of the air channels (24) surround the periphery of the secondary mirror tube (15) and are close to the secondary mirror tube (15).

8. The optical tracking device detection platform according to claim 7, characterized in that: The primary mirror assembly (6) comprises a three-leaf plate (25), an assembly hole (26) is formed in the middle of the three-leaf plate (25), the primary mirror assembly (6) further comprises a primary mirror (27) fixed in the assembly hole (26), the primary mirror (27) and the secondary mirror (16) are on the same axis, three channels (28) are formed on the three-leaf plate (25) and communicate with the inner cavity of the middle tube (5), and the pointing laser (30) is installed on the front side of the primary mirror (27).

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