Multi-optical-axis optical system detection device

Abstract

The application discloses a multi-optical-axis optical system detection device, and belongs to the technical field of photoelectricity. The multi-optical-axis optical system detection device comprises a light-emitting component, a light-guiding component and an image position detector. The device is applied to the detection of a multi-optical-axis optical system. An operator can preset a reference coordinate value in the image position detector, and obtain a first position coordinate value and a second position coordinate value when the detection device is in a first detection state and a second detection state respectively. Thus, the relative positions of the emitting optical axis and the receiving optical axis of the multi-optical-axis optical system can be obtained through the relationship among the first position coordinate value, the second position coordinate and the reference position coordinate. By using the detection device, the operator does not need to observe with naked eyes, the efficiency and the precision of the detection of the multi-optical-axis optical system are effectively improved, the detection cost is reduced, and the detection of different types of multi-optical-axis optical systems can be adapted.

Description

Technical Field

[0001] This application relates to the field of optoelectronic technology, and in particular to a multi-axis optical system detection device. Background Technology

[0002] Optoelectronic systems are an important component of measurement and control instruments, consisting of an optical system that performs optical transformation and a photodetector that performs photoelectric conversion. The light emitted by the object being measured is transformed by the optical system into structured beams in the form of converging beams, diverging beams, or parallel beams. After forming optical information, it is received by the photodetector and converted into electrical signals for processing.

[0003] Currently, multi-axis optical systems (e.g., lidar) include multiple different measuring devices. In order to improve the accuracy of multi-axis optical systems in detecting the object being tested, it is necessary to ensure that the parallelism of the optical axes of different measuring devices is maintained within a certain accuracy.

[0004] Therefore, there is an urgent need for a device to detect multi-axis optical systems. Summary of the Invention

[0005] This application provides a multi-axis optical system detection device. It solves the problem of detecting multi-axis optical systems in the prior art. The technical solution is as follows:

[0006] On one hand, a multi-axis optical system detection device is provided, which is applied to a multi-axis optical system and has a first detection state and a second detection state; the multi-axis optical system detection device includes:

[0007] Light-emitting components, light-guiding components, and image position detectors;

[0008] The light-passing port of the multi-axis optical system faces the light guide component. When the multi-axis optical system detection device is in the first detection state, the multi-axis optical system is used to emit a first light beam to the light guide component. The light guide component is used to guide the first light beam to the image position detector. The image position detector obtains a first position coordinate value based on the first light beam.

[0009] When the multi-axis optical system detection device is in the second detection state, the light-emitting component is used to emit a second beam to the light guide component, the light guide component is used to guide the second beam to the multi-axis optical system, the multi-axis optical system is used to reflect the second beam to the light guide component, the light guide component is used to guide the second beam to the image position detector, and the image position detector obtains a second position coordinate value based on the second beam.

[0010] The image position detector has a reference coordinate value. The relative position between the transmitting optical axis and the receiving optical axis of the multi-axis optical system is determined by the difference between the first position coordinate value and the reference coordinate value, and the difference between the second position coordinate value and the reference coordinate value.

[0011] Optionally, the position of the multi-axis optical system in the optical path of the multi-axis optical system detection device is the target position;

[0012] The multi-axis optical system detection device further includes: a first reflective element, wherein after the first reflective element is located at the target position, the reflective surface of the first reflective element faces the light guide assembly; the light-emitting assembly is used to emit a third beam of light to the light guide assembly, the light guide assembly is used to guide the third beam of light to the reflective surface of the first reflective element, the first reflective element is used to reflect the third beam of light back to the light guide assembly, the light guide assembly is used to guide the third beam of light to the image position detector, and the image position detector obtains the reference coordinate value based on the third beam of light.

[0013] Optionally, the light guide assembly includes: a first functional lens group and a second functional lens group, wherein the first functional lens group is located on the light-emitting side of the light-emitting component and the light-incident side of the image position detector, and the second functional lens group is located on the light-emitting side of the first functional lens group.

[0014] Wherein, the first functional lens group is used to guide the light beam emitted by the light-emitting component to the second functional lens group, the second functional lens group is used to guide the light beam to the multi-axis optical system, and is used to guide the light beam reflected from the multi-axis optical system and the light beam emitted from the multi-axis optical system to the first functional lens group, and the first functional lens group is also used to guide the light beam reflected from the multi-axis optical system and the light beam emitted from the multi-axis optical system to the image position detector.

[0015] Optionally, the light-emitting components include a halogen lamp and a laser, wherein the light-emitting side of the halogen lamp faces the first functional mirror group, the light-emitting side of the laser faces the first functional mirror group, the laser is used to emit the second light beam, and the halogen lamp is used to emit the third light beam.

[0016] Optionally, the first functional lens group includes a dichroic filter and a beam splitter, wherein the halogen lamp, the dichroic filter, and the beam splitter are arranged sequentially, and the dichroic filter is located on the light-emitting side of the laser, and the beam splitter is located on the light-incident side of the image position detector;

[0017] The arrangement direction of the halogen lamp, the color separator, and the beam splitter is perpendicular to the arrangement direction of the laser and the color separator, and also perpendicular to the arrangement direction of the image position detector and the beam splitter.

[0018] Optionally, the multi-axis optical system detection device further includes an aperture located between the halogen lamp and the dichroic filter.

[0019] Optionally, the second functional mirror group includes: a second reflecting element and an off-axis parabolic mirror, the second reflecting element being located on the light-emitting side of the first functional mirror group, and the reflecting surface of the second reflecting element facing the reflecting surface of the off-axis parabolic mirror, the reflecting surface of the off-axis parabolic mirror facing the reflecting surface of the first reflecting element, or the light-passing port of the multi-axis optical system.

[0020] Optionally, the image position detector includes: an imaging detector, and / or, a camera module; wherein, when the image position detector includes the imaging detector and the camera module, the imaging detector determines a corresponding position coordinate value based on one of the first beam and the second beam, and the camera module determines a corresponding position coordinate value based on the other of the first beam and the second beam.

[0021] Optionally, the multi-axis optical system detection device further includes a control motherboard, which is electrically connected to the light-emitting component and the image position detector respectively.

[0022] Optionally, the multi-axis optical system detection device further includes: a protective shell, the protective shell having a mounting cavity, the light-emitting component, the light-guiding component and the image position detector being mounted in the mounting cavity, and the mounting cavity being capable of accommodating the multi-axis optical system.

[0023] The beneficial effects of the technical solutions provided in this application include at least the following:

[0024] A multi-axis optical system detection device may include a light-emitting component, a light-guiding component, and an image position detector. This device is used for detecting multi-axis optical systems. An operator can preset reference coordinate values ​​during image position detection. When the multi-axis optical system detection device is in a first detection state, the multi-axis optical system emits a first light beam. This first beam passes through the light-guiding component and is directed to the image position detector, where a first position coordinate value is obtained. Then, when the multi-axis optical system detection device switches to a second detection state, a second light beam is emitted through the light-emitting component. This second beam is guided by the light-guiding component to the multi-axis optical system, and after reflection by the multi-axis optical system, it passes through the light-guiding component and is directed to the image position detector (i.e., the second beam returns along the original path), where a second position coordinate value is obtained. Thus, the relative positions of the emitting and receiving optical axes of the multi-axis optical system can be obtained through the relationship between the first, second, and reference position coordinates. This testing device eliminates the need for operators to observe with the naked eye, effectively improving the efficiency and accuracy of testing multi-axis optical systems, reducing testing costs, and adapting to the testing of different types of multi-axis optical systems. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a multi-axis optical system detection device provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of another multi-axis optical system detection structure provided in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the structure of another multi-axis optical system detection device provided in the embodiments of this application;

[0029] Figure 4 This is a schematic diagram of the structure of another multi-axis optical system detection device provided in the embodiments of this application;

[0030] Figure 5 This is an optical path diagram of a multi-axis optical system detection device in the first detection state, provided in an embodiment of this application.

[0031] Figure 6This is a schematic diagram of the structure of a multi-axis optical system detection device provided in another embodiment of this application.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0034] In related technologies, lasers are typically used to ablate photosensitive target paper to create ablation spots, thus determining the position of the emission optical axis of a multi-axis optical system. However, this method is prone to errors due to deviations in visual observation. Furthermore, the same location on the photosensitive target paper can only be illuminated by a laser once during operation, necessitating frequent replacement or relocation of the target paper. Moreover, visual observation is highly subjective and prone to significant errors, leading to varying results depending on the operator.

[0035] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a multi-axis optical system detection device provided in an embodiment of this application. The multi-axis optical system detection device can be applied to multi-axis optical systems, specifically to detect the relative positions of the transmitting and receiving optical axes within the system. The device may have a first detection state and a second detection state. For example, the multi-axis optical system may include a lidar or an infrared thermal imager.

[0036] The multi-axis optical system detection device may include: a light-emitting component 100, a light-guiding component 200, and an image position detector 300.

[0037] The light-passing port of the multi-axis optical system 001 can face the light guide component 200 in the multi-axis optical system detection device. When the multi-axis optical system detection device is in the first detection state, the multi-axis optical system 001 can be used to emit a first light beam to the light guide component 200. The light guide component 200 can be used to guide the first light beam to the image position detector 300. The image position detector 300 can obtain a first position coordinate value P1 based on these first light beams. It should be noted that the first position coordinate value P1 can be the coordinate position of the emission optical axis in the multi-axis optical system.

[0038] When the multi-axis optical system detection device is in the second detection state, the light-emitting component 100 in the multi-axis optical system detection device can be used to emit a second beam of light from the light-guiding component 200, which can then guide the second beam of light to the multi-axis optical system 001. The multi-axis optical system 001 can then reflect the second beam of light back to the light-guiding component 200, which can then guide the second beam of light to the image position detector 300. The image position detector 300 can obtain a second position coordinate value P2 based on the second beam. It should be noted that when the multi-axis optical system detection device is in the second detection state, the multi-axis optical system 001 is in a stopped working state, and the second position coordinate value P2 can be the coordinate position of the receiving optical axis in the multi-axis optical system 001. It should also be noted that only the propagation path of the second beam is shown in the figure; the propagation direction of the first beam is opposite to that of the second beam.

[0039] The image position detector 300 in the multi-axis optical system detection device can have a reference coordinate value P0. The relative positions between the emission and receiving optical axes of the multi-axis optical system are determined by the difference between the first position coordinate value P1 and the reference coordinate value P0, and the difference between the second position coordinate value P2 and the reference coordinate value P0. In one optional implementation, the multi-axis optical system detection device can be configured to determine the relative positions between the emission and receiving optical axes of the multi-axis optical system using the difference between the first position coordinate value P1 and the reference coordinate value P0, and the difference between the second position coordinate value P2 and the reference coordinate value P0. In another optional implementation, after the image position detector 300 obtains the three coordinate values, the operator can manually determine the relative positions between the emission and receiving optical axes of the multi-axis optical system based on these three coordinate values.

[0040] In this embodiment, a multi-axis optical system detection device is used for the detection of a multi-axis optical system 001. An operator can preset a reference coordinate value P0 in the image position detector 300. When the multi-axis optical system detection device is in the first detection state, the multi-axis optical system 001 emits a first light beam. The first light beam passes through the light guide component 200 and is directed towards the image position detector 300, where it obtains a first position coordinate value P1. Then, when the multi-axis optical system detection device switches to the second detection state, a second light beam is emitted through the light-emitting component 100. The second light beam is guided by the light guide component 200 to the multi-axis optical system 001, and after reflection from the multi-axis optical system 001, it passes through the light guide component 200 and is guided to the image position detector 300 (i.e., the second light beam returns along the original path), where it obtains a second position coordinate value P2. Thus, the relative positions of the transmitting and receiving optical axes of a multi-axis optical system can be obtained through the relationship between the first position coordinate value P1, the second position coordinate value P2, and the reference coordinate value P0. Using this detection device, no visual observation by the operator is required, effectively improving the efficiency and accuracy of multi-axis optical system detection, reducing detection costs, and adapting to the detection of different types of multi-axis optical systems.

[0041] In summary, this application provides a multi-axis optical system detection device, which may include a light-emitting component, a light-guiding component, and an image position detector. This device is used for detecting multi-axis optical systems. An operator can preset a reference coordinate value in the image position detector. When the multi-axis optical system detection device is in a first detection state, the multi-axis optical system emits a first light beam. The first light beam passes through the light-guiding component and is directed to the image position detector, where a first position coordinate value is obtained. Then, when the multi-axis optical system detection device switches to a second detection state, a second light beam is emitted through the light-emitting component. The second light beam is guided by the light-guiding component to the multi-axis optical system, and after reflection by the multi-axis optical system, it passes through the light-guiding component to the image position detector (i.e., the second light beam returns along the original path), where a second position coordinate value is obtained. Thus, the relative positions of the emitting and receiving optical axes of the multi-axis optical system can be obtained through the relationship between the first position coordinate value, the second position coordinate value, and the reference position coordinate value. This testing device eliminates the need for operators to observe with the naked eye, effectively improving the efficiency and accuracy of testing multi-axis optical systems, reducing testing costs, and adapting to the testing of different types of multi-axis optical systems.

[0042] Optional, please refer to Figure 2 , Figure 2This is a schematic diagram of another multi-axis optical system detection structure provided in this application embodiment. The position of the multi-axis optical system 001 in the optical path of the multi-axis optical system detection device is the target position. The multi-axis optical system detection device may further include: a first reflective element 400, after the first reflective element 400 is located at the target position, the reflective surface of the first reflective element 400 may face the light guide assembly 200. The light-emitting component 100 in the multi-axis optical system detection device may be used to emit a third beam of light to the light guide assembly 200; the light guide assembly 200 may be used to guide the third beam of light to the reflective surface of the first reflective element 400, and the first reflective element 400 may be used to reflect the third beam of light back to the light guide assembly 200; the light guide assembly 200 may also be used to guide the third beam of light to the image position detector 300, and the image position detector 300 may obtain the reference coordinate value P0 based on the third beam of light.

[0043] It should be noted that the method involves using the light-emitting component 100 to emit a third beam, which is guided by the light guide component 200 to the first reflective element, and then reflected by the first reflective element 400, so that the third beam returns along the original path and is then directed towards the image position detector 300 to obtain the reference coordinate value P0. Subsequently, after moving the multi-axis optical system 001 to the target position, the position of the multi-axis optical system 001 needs to be adjusted first, so that the first beam emitted by the multi-axis optical system 001 can still be guided by the light guide component 200 to the image position detector 300. For example, the auxiliary aiming function of the multi-axis optical system can be used to determine a reference point at the light-emitting component 100, and the multi-axis optical system can be aimed at this reference point to determine whether the multi-axis optical system is at the target position.

[0044] In the embodiments of this application, such as Figure 2 As shown, the light guide mirror group 200 in the multi-axis optical system detection device may include: a first functional mirror group 201 and a second functional mirror group 202. The first functional mirror group 201 may be located on the light-emitting side of the light-emitting component 100 and the light-incident side of the image position detector 300, and the second functional mirror group 202 may be located on the light-emitting side of the first functional mirror group 201. The first functional mirror group 201 can be used to guide the light beam emitted by the light-emitting component 100 to the second functional mirror group 202, and the second functional mirror group 202 can be used to guide these light beams to the multi-axis optical system 001. Furthermore, the second functional mirror group 202 can be used to guide the light beam reflected from and emitted by the multi-axis optical system 001 to the first functional mirror group 201, and the first functional mirror group 201 can also be used to guide the light beam reflected from and emitted by the multi-axis optical system 001 to the image position detector 300.

[0045] For example, when the multi-axis optical system detection device is in the first detection state, the multi-axis optical system 001 can first emit a first beam to the second functional lens group 202, the second functional lens group 202 can guide the first beam to the first functional lens group 201, and the first functional lens group 201 can then guide the first beam to the image position detector 300. When the multi-axis optical system detection device is in the second detection state, the light-emitting component 100 can first emit a second beam to the first functional lens group 201, the first functional lens group 201 can guide the second beam to the second functional lens group 202; the second functional lens group 202 can then guide the second beam to the multi-axis optical system 001, the multi-axis optical system 001 can reflect the second beam back to the second functional lens group 202; the second functional lens group 202 can then guide the second beam to the first functional lens group 201, and the first functional lens group 201 can then guide the second beam to the image position detector 300. It should be noted that when the multi-axis optical system detection device includes a first reflective element 400, after the first reflective element 400 is located at the target position, the light-emitting component 100 can first emit a third beam towards the first functional mirror group 201, and the first functional mirror group 201 guides the third beam to the second functional mirror group 202; the second functional mirror group 202 then guides the third beam to the first reflective element 400, and the first reflective element 400 can reflect the third beam towards the second functional mirror group 202; the second functional mirror group 202 then guides the third beam to the first functional mirror group 201, and the first functional mirror group 201 then guides the third beam to the image position detector 300.

[0046] Please refer to the following in this application: Figure 3 , Figure 3This is a schematic diagram of another multi-axis optical system detection device provided in this application embodiment. The multi-axis optical system detection device may further include a driving assembly 500, which may include a first driving part 501 and a second driving part 502. The first driving part 501 can be connected to the first reflecting element 400, and the second driving part 500 can be used to connect to the multi-axis optical system 001. During the detection of the multi-axis optical system using the multi-axis optical system detection device, firstly, the first driving part 501 in the driving assembly can drive the first reflecting element 400 to move to the target position. After obtaining the reference coordinate value P0, the first driving part 501 then drives the first reflecting element 400 to move out of the target position, and then the second driving part 502 drives the multi-axis optical system to move to the target position. The multi-axis optical system detection device obtains a first position coordinate value P1 and a second position coordinate value P2 under different detection states. For example, the structures of the first driving unit and the second driving unit can be the same. Taking the first driving unit as an example, the first driving unit may include: a drive motor, a lead screw, and a drive slider sleeved on the lead screw. The output shaft of the drive motor may be connected to the end of the lead screw, and the drive slider may be fixedly connected to the back side of the first reflective element (i.e., the side opposite to the reflective surface of the first reflective element). In this way, the output shaft of the drive motor drives the lead screw to rotate in different directions, thereby causing the drive slider to drive the first reflective element to move along the length direction of the lead screw. In other possible implementations, the first driving unit may also include: a cylinder and a fixed block. The cylinder may have a push rod, and the end of the push rod away from the cylinder may be connected to the back side of the first reflective element. In this way, the extension and retraction movement of the push rod in the cylinder drives the first reflective element to move through the fixed block. In order to achieve stable movement of the fixed block, a strip guide rail may be provided in the first driving unit. The fixed block may be slidably connected to the strip guide rail, and the fixed block may move relative to the strip guide rail. It should be noted that, in other possible implementations, the first driving unit may include: a drive motor, a gear, and a rack. The output shaft of the drive motor may be connected to the gear, the gear may mesh with the rack, and the rack may be connected to the back side of the first reflective element. The extending direction of the rack may be parallel to the extending direction of the first reflective element. The drive motor can drive the gear to rotate, thereby driving the rack and the first reflective element to move.

[0047] Optional, please refer to Figure 4 , Figure 4This is a schematic diagram of another multi-axis optical system detection device provided in this application embodiment. The light-emitting component 100 in the multi-axis optical system detection device may include a halogen lamp 101 and a laser 102. The light-emitting side of the halogen lamp 101 may face the first functional lens group 201, and the light-emitting side of the laser 102 may also face the first functional lens group 201. The laser 102 can be used to emit a second beam, and the halogen lamp 101 can be used to emit a third beam. For example, a filter A can be provided on the light-emitting side of the halogen lamp 101. After passing through the filter A, the beam emitted by the halogen lamp 101 can emit near-infrared light with a wavelength of 3 to 5 micrometers. The laser 102 can emit a beam with the same wavelength as the multi-axis optical system 001.

[0048] In the embodiments of this application, such as Figure 4 As shown, the first functional lens group 201 may include a dichroic filter 201a and a beam splitter 201b. The halogen lamp 101, dichroic filter 201a, and beam splitter 201b are arranged sequentially, with the dichroic filter 201a located on the light-emitting side of the laser 102 and the beam splitter 201b located on the light-incident side of the image position detector 300. The arrangement direction of the halogen lamp 101, dichroic filter 201a, and beam splitter 201b may be perpendicular to the arrangement direction of the laser 102 and dichroic filter 201a, and may also be perpendicular to the arrangement direction of the image position detector 300 and beam splitter 201b. For example, the light beam emitted by the halogen lamp 101 can pass through the dichroic filter 201a and then illuminate the beam splitter 201b. The beam splitter 201b then reflects the light beam to the second functional mirror group 202, which guides it to the first reflective element 400. The first reflective element 400 reflects the light beam back to the second functional mirror group 202, which then guides it to the beam splitter 201b. After being transmitted through the beam splitter 201b, the light beam is emitted to the image position detector 300. In this application, the beam splitter 201b is mainly used to decompose the incident light beam into monochromatic light of different wavelengths, thereby achieving effective extraction and utilization of optical information. The working principle of the beam splitter is to use dispersive elements (such as triangular prisms or gratings) to decompose white light into monochromatic light of different wavelengths, forming a continuous visible light spectrum. In this application, the multi-axis optical system detection device may further include a variable attenuator B located between the first functional lens group 201 and the image position detector 300. This variable attenuator can reduce the intensity of the light beam incident on the image position detector 300, preventing high-intensity light beams from damaging the image position detector 300. For example, the variable attenuator B may be located between the beam splitter 201b and the image position detector 300.

[0049] For example, please refer to Figure 5 , Figure 5This is an optical path diagram of a multi-axis optical system detection device in a first detection state, as provided in an embodiment of this application. In the first detection state, the multi-axis optical system 001 emits a first beam to the second functional mirror group 202. The second functional mirror group 202 guides the first beam to a beam splitter 201b, which transmits the beam through the beam splitter 201b and then directs it to the image position detector 300. In the second detection state, the second beam emitted by the laser 102 is reflected by a dichroic filter 201a to the beam splitter 201b, and then reflected again by the beam splitter 201b to the second functional mirror group 202. The second functional mirror group 202 guides the second beam to the multi-axis optical system 001, which then reflects the second beam back to the second functional mirror group 202. The second functional mirror group 202 guides the second beam to the beam splitter 201b, which transmits the beam through the beam splitter 201b and then directs it to the image position detector 300. Here, the second functional lens group 202 can collimate the light beam to form a parallel light beam for output, thereby improving the accuracy of the multi-axis optical system detection device in detecting multi-axis optical systems.

[0050] Optional, such as Figure 4 As shown, the multi-axis optical system detection device may further include an aperture 600 located between the halogen lamp 101 and the dichroic filter 201a. This aperture 600 may have a circular aperture, and its function is to improve the beam quality by reducing the beam diameter. Here, the aperture can also be aimed using the auxiliary aiming function of the multi-axis optical system to determine the placement position of the multi-axis optical system 001 within the multi-axis optical system detection device.

[0051] In the embodiments of this application, such as Figure 4As shown, the second functional mirror group 202 may include a second reflecting element 202a and an off-axis parabolic mirror 202b. The second reflecting element 202a may be located on the light-emitting side of the first functional mirror group 201, and the reflecting surface of the second reflecting element 202a may face the reflecting surface of the off-axis parabolic mirror 202b. The reflecting surface of the off-axis parabolic mirror 202b may face the reflecting surface of the first reflecting element 400, or the light-passing port of the multi-axis optical system 001. For example, the second reflecting element 202a may be located on the light-emitting side of the beam splitter 201b, and the arrangement direction of the beam splitter 201b and the second reflecting element 202a may be perpendicular to the arrangement direction of the off-axis parabolic mirror 202b and the first reflecting element 400 or the multi-axis optical system 001. Here, the light beam emitted from the beam splitter 201b can be reflected by the reflecting surface of the second reflecting element 202a to the reflecting surface of the off-axis parabolic mirror 202b, and after being collimated by the off-axis parabolic mirror 202b, it can be reflected to the reflecting surface of the first reflecting element 400, or to the light-passing port of the multi-axis optical system 001. It should be noted that the second reflecting element 202a can be a folding mirror, and the second functional mirror group 202 of this application can also adopt other optical components with collimation and reflection functions. This application embodiment does not specifically limit this.

[0052] Optionally, the image position detector 300 in the multi-axis optical system detection device may include an imaging detector and / or a camera module (not shown in the figure). Wherein, when the image position detector includes an imaging detector and a camera module, the imaging detector can determine the corresponding position coordinate value based on one of the first beam and the second beam, and the camera module can determine the corresponding position coordinate value based on the other of the first beam and the second beam. For example, when the image position detector 300 includes an imaging detector and a camera module, the imaging detector can determine a second position coordinate value P2 based on the second beam, and the camera module can determine a first position coordinate value P1 based on the first beam. Furthermore, when the light-emitting component emits a third beam, the camera module can determine a reference coordinate value P0 based on the third beam.

[0053] In this embodiment, the multi-axis optical detection device may further include a control motherboard (not shown in the figure), which can be electrically connected to the light-emitting component 100 and the image position detector 300 respectively to control the multi-axis optical system detection device to switch between a first detection state and a second detection state. In this case, the control motherboard can control the light-emitting component 100 and the image position detector 300 to turn on or off. For example, after receiving the first position coordinate value, the second position coordinate value, and the reference coordinate value, the control motherboard, according to the pre-stored relational formula:

[0054] The angular deviation value obtained by comparing (P1-P0) / f and (P2-P0) / f can be used to characterize the relative position between the transmitting and receiving optical axes of a multi-axis optical system. For example, the angular deviation value can be greater than or equal to 0 minutes and less than or equal to 15 minutes. When the angular deviation value is within this range, it can be determined that the parallelism between the transmitting and receiving optical axes of the multi-axis optical system is good. It should be noted that f represents the focal length of the multi-axis optical system testing device, which the operator can know before testing the multi-axis optical system.

[0055] Optional, please refer to Figure 6 , Figure 6 This is a schematic diagram of a multi-axis optical system detection device according to another embodiment of this application. The multi-axis optical system detection device may further include a protective housing 700, which may have a mounting cavity a1. The light-emitting component 100, the light-guiding component 200, and the image position detector 300 can all be installed within the mounting cavity a1 of the protective housing 700, and the mounting cavity a1 of the protective housing 700 can accommodate the multi-axis optical system 001. In this case, by providing the protective housing 700, the light-emitting component 100, the light-guiding component 200, and the image position detector 300 in the multi-axis optical system detection device are all housed within the mounting cavity a1 of the protective housing 700, and the protective housing 700 can provide sealed protection for each component.

[0056] In summary, this application provides a multi-axis optical system detection device, which may include a light-emitting component, a light-guiding component, and an image position detector. This device is used for detecting multi-axis optical systems. An operator can preset a reference coordinate value in the image position detector. When the multi-axis optical system detection device is in a first detection state, the multi-axis optical system emits a first light beam. The first light beam passes through the light-guiding component and is directed to the image position detector, where a first position coordinate value is obtained. Then, when the multi-axis optical system detection device switches to a second detection state, a second light beam is emitted through the light-emitting component. The second light beam is guided by the light-guiding component to the multi-axis optical system, and after reflection by the multi-axis optical system, it passes through the light-guiding component to the image position detector (i.e., the second light beam returns along the original path), where a second position coordinate value is obtained. Thus, the relative positions of the emitting and receiving optical axes of the multi-axis optical system can be obtained through the relationship between the first position coordinate value, the second position coordinate value, and the reference position coordinate value. This testing device eliminates the need for operators to observe with the naked eye, effectively improving the efficiency and accuracy of testing multi-axis optical systems, reducing testing costs, and adapting to the testing of different types of multi-axis optical systems.

[0057] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0058] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0059] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A detection device for a multi-axis optical system, characterized in that, The multi-axis optical system detection device is applied to a multi-axis optical system, and the multi-axis optical system detection device has a first detection state and a second detection state. The multi-axis optical system detection device includes: a light-emitting component, a light-guiding component, and an image position detector; The light-passing port of the multi-axis optical system faces the light guide component. When the multi-axis optical system detection device is in the first detection state, the multi-axis optical system is used to emit a first light beam to the light guide component. The light guide component is used to guide the first light beam to the image position detector. The image position detector obtains a first position coordinate value based on the first light beam. When the multi-axis optical system detection device is in the second detection state, the light-emitting component is used to emit a second beam to the light guide component, the light guide component is used to guide the second beam to the multi-axis optical system, the multi-axis optical system is used to reflect the second beam to the light guide component, the light guide component is used to guide the second beam to the image position detector, and the image position detector obtains a second position coordinate value based on the second beam. The image position detector has a reference coordinate value, and the relative position between the transmitting optical axis and the receiving optical axis of the multi-axis optical system is determined by the difference between the first position coordinate value and the reference coordinate value, and the difference between the second position coordinate value and the reference coordinate value. The position of the multi-axis optical system in the optical path of the multi-axis optical system detection device is the target position; The multi-axis optical system detection device further includes: a first reflective element, wherein after the first reflective element is located at the target position, the reflective surface of the first reflective element faces the light guide assembly; the light-emitting assembly is used to emit a third beam of light to the light guide assembly, the light guide assembly is used to guide the third beam of light to the reflective surface of the first reflective element, the first reflective element is used to reflect the third beam of light back to the light guide assembly, the light guide assembly is used to guide the third beam of light to the image position detector, and the image position detector obtains the reference coordinate value based on the third beam of light.

2. The multi-axis optical system detection device according to claim 1, characterized in that, The light guide assembly includes: a first functional lens group and a second functional lens group, wherein the first functional lens group is located on the light-emitting side of the light-emitting component and the light-incident side of the image position detector, and the second functional lens group is located on the light-emitting side of the first functional lens group. Wherein, the first functional lens group is used to guide the light beam emitted by the light-emitting component to the second functional lens group, the second functional lens group is used to guide the light beam to the multi-axis optical system, and is used to guide the light beam reflected from the multi-axis optical system and the light beam emitted from the multi-axis optical system to the first functional lens group, and the first functional lens group is also used to guide the light beam reflected from the multi-axis optical system and the light beam emitted from the multi-axis optical system to the image position detector.

3. The multi-axis optical system detection device according to claim 2, characterized in that, The light-emitting components are a halogen lamp and a laser. The light-emitting side of the halogen lamp faces the first functional mirror group, and the light-emitting side of the laser faces the first functional mirror group. The laser is used to emit the second light beam, and the halogen lamp is used to emit the third light beam.

4. The detection device for a multi-axis optical system according to claim 3, characterized in that, The first functional lens group includes a dichroic filter and a beam splitter. The halogen lamp, the dichroic filter, and the beam splitter are arranged sequentially, with the dichroic filter located on the light-emitting side of the laser and the beam splitter located on the light-incident side of the image position detector. The arrangement direction of the halogen lamp, the color separator, and the beam splitter is perpendicular to the arrangement direction of the laser and the color separator, and also perpendicular to the arrangement direction of the image position detector and the beam splitter.

5. The multi-axis optical system detection device according to claim 4, characterized in that, The multi-axis optical system detection device further includes an aperture located between the halogen lamp and the color separator.

6. The multi-axis optical system detection device according to any one of claims 2 to 5, characterized in that, The second functional mirror group includes: a second reflecting element and an off-axis parabolic mirror. The second reflecting element is located on the light-emitting side of the first functional mirror group, and the reflecting surface of the second reflecting element faces the reflecting surface of the off-axis parabolic mirror. The reflecting surface of the off-axis parabolic mirror faces the reflecting surface of the first reflecting element, or the light-passing port of the multi-axis optical system.

7. The multi-axis optical system detection device according to any one of claims 1 to 5, characterized in that, The image position detector includes: an imaging detector, and / or, a camera module; wherein, when the image position detector includes the imaging detector and the camera module, the imaging detector determines the corresponding position coordinate value based on one of the first beam and the second beam, and the camera module determines the corresponding position coordinate value based on the other of the first beam and the second beam.

8. The multi-axis optical system detection device according to any one of claims 1 to 5, characterized in that, The multi-axis optical system detection device further includes a control motherboard, which is electrically connected to the light-emitting component and the image position detector.

9. The multi-axis optical system detection device according to any one of claims 1 to 5, characterized in that, The multi-axis optical system detection device further includes a protective shell, which has a mounting cavity. The light-emitting component, the light-guiding component, and the image position detector are all mounted in the mounting cavity, and the mounting cavity can be used to accommodate the multi-axis optical system.

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