Imaging system adjusting device

Abstract

The utility model discloses an imaging system adjusting device, which comprises a bottom plate, and a collimator module, an optical test module and an imaging module which are sequentially arranged at intervals along the length direction of the bottom plate, the optical test module is used for assisting in correcting the imaging definition of the imaging module, and the imaging module comprises a lens and a camera. Deviation correction between the center line of the optical axis of the lens and the center of the chip of the camera can be realized through the collimator module. According to the invention, the Sammer angle between the camera and the lens can be accurately tested, and the adjustment of the posture of the camera is completed, so that the high-precision requirement between the camera and the lens is met.

Description

Technical Field

[0001] The present application relates to the technical field of imaging equipment, and in particular to an imaging system adjustment device. Background Art

[0002] The 3D automated optical inspection equipment used in SMT technology is a complex system involving many fields such as light, machinery, electricity, and computing. SMT is a surface mounting technology and is currently the most common technology and process in the electronic assembly industry. One of the solutions used by 3D automated optical inspection equipment is to project a series of structured light stripes by a projection optical machine, and then use an imaging system to collect the stripe pattern modulated by the object to be tested, and use an algorithm to solve the three-dimensional contour of the object to be tested, and then complete the test. However, the precision adjustment between the camera and the lens in the existing technology is relatively rough and cannot meet the requirements of high-precision adjustment. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide an imaging system adjustment device that can accurately test the Sham angle between the camera and the lens and complete the adjustment of the camera posture to meet the high-precision requirements between the camera and the lens.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] On the one hand, an imaging system adjustment device is provided, comprising: a base plate, and a collimator module, an optical test module and an imaging module arranged in sequence along the length direction of the base plate, wherein the optical test module is used to assist in correcting the imaging clarity of the imaging module, the imaging module comprises a lens and a camera, and the collimator module is used to correct the deviation between the optical axis center line of the lens and the chip center of the camera. The offset of the collimator module is adjusted by the parallel light emitted by the collimator module, so that the parallel light and the optical axis center line of the lens are in a coaxial or parallel state, and then, under the premise that the imaging module clearly images the optical test module, the offset between the optical axis center line of the lens and the chip center of the camera is observed, and the posture of the camera is adjusted according to the offset, so that the optical axis center line of the lens coincides with or is near the chip center of the camera, so as to achieve the purpose of accurately adjusting the posture of the lens and the camera.

[0006] Furthermore, the imaging module also includes a first adjustment mechanism and a second adjustment mechanism, wherein the first adjustment mechanism is used to adjust the position of the lens in the X-axis direction, the Y-axis direction and the Z-axis direction, and the second adjustment mechanism is used to adjust the position of the camera in the X-axis direction, the Y-axis direction and the Z-axis direction. The deviation between the optical axis center line of the lens and the chip center of the camera is corrected by adjusting the movement of the lens or the camera to achieve the purpose of precise adjustment.

[0007] Furthermore, the first adjustment mechanism includes a Z-axis adjustment member, and the second adjustment mechanism includes a Y-axis adjustment member, wherein the Z-axis adjustment member is used to adjust the position of the lens in the Z-axis direction, and the Y-axis adjustment member is used to drive the camera to move in the Y-axis direction. By adjusting the position of the lens in the Z-axis direction and the position of the camera in the Y-axis direction respectively, the purpose of correcting the deviation of the optical axis center line of the lens and the chip center of the camera is achieved.

[0008] Furthermore, the first adjustment mechanism also includes an X-axis adjustment member, and the X-axis adjustment member is used to adjust the distance between the lens and the camera in the X-axis direction.

[0009] Furthermore, the imaging module also includes an angle adjustment component, two sides of which are respectively connected to the lens and the camera, and the angle adjustment component is used to adjust the angle between the lens and the camera.

[0010] Furthermore, the angle adjustment assembly includes a first fixing plate, a second fixing plate and a rotation adjustment plate, the lens is mounted on the first fixing plate, the camera is mounted on the second fixing plate, the first fixing plate is rotationally connected to one side of the rotation adjustment plate, and / or the second fixing plate is rotationally connected to the other side opposite to the rotation adjustment plate. The angle between the camera and the lens can be adjusted by rotating the adjustment plate to meet the Sham imaging principle for clear imaging.

[0011] Furthermore, the X-axis adjustment member is disposed on the rotation adjustment plate, and a power end is connected to the first fixed plate, so as to drive the first fixed plate to move along the X-axis direction.

[0012] Furthermore, the camera is movably mounted on the second fixed plate, the Y-axis adjustment member is mounted on the second fixed plate, and the power end is connected to the camera for driving the camera to move along the Y-axis direction.

[0013] Furthermore, two rotating adjustment plates are provided, one of which connects the top of the first fixing plate and the top of the second fixing plate, and the other of which connects the bottom of the first fixing plate and the bottom of the second fixing plate. By providing two rotating adjustment plates, the purpose of stabilizing the adjustment angle can be achieved.

[0014] Furthermore, two X-axis adjustment members are provided, and the two X-axis adjustment members are respectively provided on the two rotating adjustment plates, and the power ends of the two X-axis adjustment members are connected to the first fixed plate. Providing two X-axis adjustment members can better adapt to the scheme of providing two rotating adjustment members, ensuring the accuracy of adjusting the distance between the camera and the lens in the X-axis direction.

[0015] Furthermore, the rotating adjustment plate is provided with an arc-shaped through hole on one side relative to the first fixed plate, and the top end of the first fixed plate is movably mounted on the arc-shaped through hole; and / or the rotating adjustment plate and the second fixed plate are rotatably connected via a rotating shaft. The first fixed plate can rotate relative to the rotating adjustment plate, and the second fixed plate can also rotate relative to the rotating adjustment plate. Through the two rotating connections, more different angles can be adjusted to ensure clear imaging.

[0016] Furthermore, the imaging module also includes a translation mechanism, and the translation mechanism is used to drive the lens and the camera to move synchronously along the X-axis direction and / or synchronously along the Y-axis direction.

[0017] Furthermore, the translation mechanism includes a fixed frame and a translation adjustment component, the lens and the camera are both mounted on the fixed frame, the fixed frame is mounted on the bottom plate through the translation adjustment component, and the translation adjustment component is used to drive the fixed frame to move along the X-axis direction, and / or to drive the fixed frame to move along the Y-axis direction. The camera and the lens can be driven to move as a whole through the translation adjustment component, which is convenient for adjusting the specific position of the imaging module in the X-axis direction and the Y-axis direction, thereby ensuring clear imaging of the imaging module.

[0018] Furthermore, the imaging module also includes a reflective component, which is mounted on the fixing frame, and a reflective surface of the reflective component is vertically distributed to a center line of an optical axis of the lens.

[0019] Furthermore, the optical test module includes a rotating member, a mounting member, and an optical test board, wherein the rotating member is mounted on the bottom plate, the mounting member is rotatably mounted on the rotating member, and the optical test board is mounted on the mounting member and is vertically distributed with respect to the bottom plate. The rotation of the optical test board is controlled by the rotating member and the mounting member, so that the optical test board has different tilt angles relative to the lens, so as to meet the imaging effect inspection and Sham angle measurement of different Sham angle imaging systems.

[0020] Furthermore, through holes for the light of the collimator module to pass through are correspondingly provided on the mounting piece and the optical test board, so as to avoid interference of the optical test board and the mounting piece with the direct radiation of the parallel light.

[0021] Furthermore, the collimator module can move along the X-axis direction, the Y-axis direction and the Z-axis direction respectively.

[0022] Furthermore, the collimator module includes a collimator and an adjustment mechanism, the adjustment mechanism connects the base plate and the collimator, and the adjustment mechanism is used to drive the collimator to move along the X-axis direction, the Y-axis direction and the Z-axis direction respectively. The offset of the collimator module is adjusted by the adjustment mechanism to ensure that the parallel light emitted by the collimator module is parallel to the optical axis center line of the lens.

[0023] Further, the adjustment mechanism includes a first adjustment member, a second adjustment member and a third adjustment member, the first adjustment member is installed on the base plate, the second adjustment member is installed on the first adjustment member, the third adjustment member is installed on the second adjustment member, the collimator is movably installed on the third adjustment member, the first adjustment member is used to drive the second adjustment member to move along the Y-axis direction, the second adjustment member is used to drive the third adjustment member to move along the Z-axis direction, and the third adjustment member is used to drive the collimator to move along the X-axis direction.

[0024] Furthermore, the collimator is a self-collimating collimator equipped with a graticule, and the graticule is a crosshair.

[0025] The beneficial effects of the present application are as follows: when the optical test module and the lens are not in a vertical state, in order for the imaging module to obtain clear image information of the optical test module, the angle between the lens and the camera is adjusted through an angle adjustment component. After the angle adjustment is completed, the position of the center line of the optical axis of the lens and the center of the camera chip is further tested and adjusted. Specifically, parallel light is emitted by the collimator module. After the parallel light is reflected back by the reflector and received by the collimator module, the collimator module calculates and displays the offset angle of the light source relative to the reflector, so as to adjust the offset of the parallel light emitted by the collimator module so that The offsets in the X-axis and Y-axis directions are both zero to ensure that the parallel light emitted by the collimator module is parallel to the optical axis center line of the lens. Then, by adjusting the lens, the imaging module can clearly image the optical test module. At the same time, the pixel coordinates of the center of the parallel light emitted by the collimator module in the camera are observed to calculate the offset of the optical axis center line of the lens relative to the center of the camera chip. At the same time, the position of the camera on the Z-axis and Y-axis is adjusted by the Z-axis adjustment member and the Y-axis adjustment member so that the chip center of the camera coincides with the optical axis center line of the lens, or the optical axis center line of the lens is within a certain range around the chip center. This application uses an actual light beam as a reference to truly test the deviation between the optical axis center line of the lens and the camera chip center. The test is convenient and accurate, and the adjustment of the camera posture is completed to meet the high-precision requirements between the camera and the lens. After obtaining a clear image, the Sham angle between the camera and the lens can be measured by measuring equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present application is further described in detail below based on the drawings and embodiments.

[0027] Figure 1 A three-dimensional diagram of the imaging system adjustment device according to an embodiment of the present application;

[0028] Figure 2 The stereoscopic imaging module described in the embodiment of the present application Figure 1 ;

[0029] Figure 3 The stereoscopic imaging module described in the embodiment of the present application Figure 2 ;

[0030] Figure 4 A side view of the imaging module according to an embodiment of the present application;

[0031] Figure 5 A three-dimensional diagram of the angle adjustment assembly described in an embodiment of the present application;

[0032] Figure 6 It is a three-dimensional schematic diagram of the collimator module described in the embodiment of the present application;

[0033] Figure 7 The three-dimensional optical test module of the embodiment of the present application Figure 1 ;

[0034] Figure 8 The three-dimensional optical test module of the embodiment of the present application Figure 2 .

[0035] In the figure: 1. base plate; 2. collimator module; 201. parallel light tube; 202. adjustment mechanism; 2021. first adjustment member; 2022. second adjustment member; 2023. third adjustment member; 3. optical test module; 301. rotating member; 302. mounting member; 303. optical test board; 304. through hole; 4. imaging module; 401. fixing frame; 402. lens; 403. camera; 404. reflecting member; 405. angle adjustment assembly; 406. X-axis adjustment member; 407. Y-axis adjustment member; 408. translation adjustment assembly; 4051. rotation adjustment plate; 4052. first fixed plate; 4053. second fixed plate. DETAILED DESCRIPTION

[0036] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0037] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the process of rapid development of aviation and aerospace technology, imaging systems play a major role in various tasks. Therefore, how to ensure high-quality imaging effects during the assembly of imaging systems, especially in large-scale production, how to ensure that each imaging system has the same imaging quality and achieve rapid assembly and adjustment is particularly important.

[0040] Since the imaging system often needs to image the object at an angle, according to Sham's law, there must be an angle between the lens and the camera. The angle between the lens and the camera refers to the angle between the lens and the camera plane, which is usually used to describe the angle between the lens and the object when shooting. This angle can be divided into two types: horizontal angle and vertical angle. The horizontal angle refers to the angle between the lens and the camera plane on the horizontal plane, which can be divided into the front angle, side angle and back angle; the vertical angle refers to the angle between the lens and the camera plane on the vertical plane, which can be divided into the horizontal angle, the downward angle and the upward angle. However, due to the existence of the angle, the conventional adjustment scheme will make it impossible to align the center line of the optical axis of the lens with the center of the chip of the camera, resulting in extremely poor imaging effect of the imaging system, which seriously affects its application in related technical fields. Among them, Sham's law, also known as Sham's theorem or Sham's theorem, means that when the extended surfaces of the three planes of the object plane, the image plane and the lens plane intersect in a straight line, a comprehensive and clear image can be obtained. Specifically, this law involves the adjustment of the angle between the camera and the lens, and how to obtain clearer image information by correcting the deviation between the center line of the lens' optical axis and the center of the camera's chip.

[0041] Therefore, this embodiment provides an imaging system adjustment device capable of achieving high-precision adjustment, such as Figure 1-Figure 5 As shown, it includes: a base plate 1, and a collimator module 2, an optical test module 3 and an imaging module 4 which are sequentially arranged at intervals along the length direction of the base plate 1, wherein the optical test module 3 is used to assist in correcting the imaging clarity of the imaging module 4, and the imaging module 4 includes a lens 402 and a camera 403. The collimator module 2 can be used to achieve the deviation correction between the optical axis center line of the lens 402 and the chip center of the camera 403. In this solution, under the premise of ensuring the imaging clarity of the imaging module 4, the collimator module 2 is used to assist in correcting the deviation between the optical axis center line of the lens 402 and the chip center of the camera 403, further ensuring that the imaging clarity of the imaging module 4 meets the high-quality imaging requirements.

[0042] At the same time, the imaging module 4 also includes a first adjustment mechanism and a second adjustment mechanism, wherein the first adjustment mechanism is used to adjust the position of the lens 402 in the X-axis direction, the Y-axis direction and the Z-axis direction, and the second adjustment mechanism is used to adjust the position of the camera 403 in the X-axis direction, the Y-axis direction and the Z-axis direction. The lens 402 and the camera 403 can both move in the three directions of the X-axis, the Y-axis and the Z-axis, that is, the relative position adjustment method of the lens 402 and the camera 403 is diverse, and the relative position adjustment of the lens 402 and the camera 403 can be performed by adjusting the position of the lens 402, or by adjusting the position of the camera 403, so that the deviation between the optical axis center line of the lens 402 and the chip center of the camera 403 can be better corrected.

[0043] Specifically, the lens 402 can move in the Z-axis direction, and / or the camera 403 can move in the Y-axis direction. In the feasible solution, at least three adjustment modes are included, the first is that the lens 402 moves in the Z-axis direction alone, the second is that the camera 403 moves in the Y-axis direction alone, and the third is that the lens 402 can move in the Z-axis direction and the camera 403 can move in the Y-axis direction at the same time, so it can be adaptively selected according to actual design requirements.

[0044] The preferred solution is to correct the deviation between the optical axis center line of the lens 402 and the chip center of the camera 403 by adjusting the movement of the lens 402 and the camera 403, so as to achieve the purpose of precise adjustment. The specific adjustment process is to adjust the lens 402 so that the imaging module 4 can clearly image the optical test board 9, determine the angle between the camera 403 and the lens 402, and then adjust the relative position relationship between the lens 402 and the camera 403 in the Z-axis and Y-axis directions to correct the deviation between the optical axis center line of the lens 402 and the chip center of the camera 403.

[0045] The imaging module 4 also includes a translation mechanism, and the translation mechanism is used to drive the lens 402 and the camera 403 to move synchronously along the X-axis direction as a whole, and / or synchronously move along the Y-axis direction. In addition, the imaging module 4 also includes a reflector 404 and an angle adjustment component 405. The translation mechanism includes a fixed frame 401. The first adjustment mechanism includes an X-axis adjustment component 406 and a Z-axis adjustment component. The second adjustment mechanism includes a Y-axis adjustment component 407. The angle adjustment component 405 is installed on the fixed frame 401, and the lens 402 and the camera 403 are connected on both sides. The angle adjustment component 405 is used to adjust the angle between the lens 402 and the camera 403. The reflector 404 is arranged on the fixed frame 401, and the reflector 404 The reflective surface is perpendicular to the center line of the optical axis of the lens 402, and in the assembly steps, the angle adjustment component 405 is first installed on the fixing frame 401, and then the reflective component 404 is installed on the fixing frame 401. The X-axis adjustment component 406 and the Y-axis adjustment component 407 are both arranged on the angle adjustment component 405. The X-axis adjustment component 406 is used to adjust the distance between the lens 402 and the camera 403 in the X-axis direction, the Y-axis adjustment component 407 is used to drive the camera 403 to move in the Y-axis direction, and the Z-axis adjustment component is used to adjust the position of the lens 402 in the Z-axis direction.

[0046] Based on the above scheme, since the imaging module 4 needs to clearly image the optical test module 3, and the optical axis center line of the optical test module 3 and the lens 402 is not necessarily set vertically, considering the situation that the imaging module 4 needs to tilt the optical test module 3, according to Sham's law, when there is no set angle at the beginning, during the process of clear imaging through the optical test module 3, the angle between the camera 403 and the lens 402 is further adjusted by the angle adjustment component 405 to ensure that the imaging module 4 can clearly image the tilted optical test module 3. After adjusting the angle between the camera 403 and the lens 402, the collimator module 2 emits parallel light, and the parallel light is reflected After the light reflected by the reflector 404 is received by the collimator module 2, the collimator module 2 calculates and displays the offset angle of the light source relative to the reflector 404 to adjust the offset of the parallel light emitted by the collimator module 2 so that the offsets in the X-axis direction and the Y-axis direction are both zero to ensure that the parallel light emitted by the collimator module 2 is parallel to the optical axis center line of the lens 402. It should be pointed out here that the reflective surface of the reflector 404 is perpendicular to the optical axis center line of the lens 402, and the arrangement positions of the reflector 404 and the lens 402 are fixed, and the related setting parameters between the two are also pre-set, so the offset of the parallel light can be calculated according to the installation positions of the reflector 404 and the lens 402. The amount is used to adjust the collimator module 2; after the offset adjustment is completed, the lens 402 is adjusted to make the imaging module 4 clearly image the optical test module 3, and the pixel coordinates of the center of the parallel light emitted by the collimator module 2 in the camera 403 are observed at the same time, so as to calculate the offset of the optical axis center line of the lens 402 relative to the chip center of the camera 403, and at the same time, the position of the camera 403 on the Z axis and the Y axis is adjusted by the Z-axis adjustment member and the Y-axis adjustment member 407. The adjustment described here is the relative position of the camera 403 and the lens 402, not the position of the camera 403 on the Z axis alone, so that the chip center of the camera 403 coincides with the optical axis center line of the lens 402, or the lens 403 is adjusted to the Z axis. The optical axis centerline of the lens 402 is within a certain range around the chip center. In this solution, the actual light beam is used as a reference to truly test the deviation between the optical axis centerline of the lens 402 and the chip center of the camera 403. The test is convenient and accurate. The Sham angle between the camera 403 and the lens 402 can be tested at one time, and the adjustment of the camera 403 posture can be completed to achieve the high-precision requirements between the camera 403 and the lens 402. The test of the Sham angle of the camera 403 and the lens 402 described here is based on the premise that the imaging module 4 has clear imaging, and the Sham angle between the lens 402 and the camera 403 is calculated based on the inclination angle of the optical test template, rather than directly calculating the Sham angle. At the same time, the distance between the lens 402 and the camera 403 in the X-axis direction can also be adjusted by the X-axis adjustment member 406, so that the distance between the lens 402 and the camera 403 is appropriate to ensure clear imaging of the imaging module 4.

[0047] As an optional specific implementation scheme, the relative positions of the lens 402 and the camera 403 can be adjusted by adjusting the position of the lens 402 in the X-axis direction and adjusting the position of the camera 403 in the Z-axis direction. That is to say, the relative positions of the lens 402 and the camera 403 can be achieved through different adjustment methods to achieve the purpose of correcting the deviation of the optical axis center line of the lens 402 and the chip center of the camera 403, wherein the position adjustment of the lens 402 can be specifically achieved through the X-axis adjustment member 406.

[0048] In addition, it should be pointed out that the offset of the parallel light can be calculated according to the installation position of the reflector 404 and the lens 402 and used to adjust the collimator module 2. The adjustment of the collimator module 2 described here is when the installation position of the reflector 404 and the lens 402 is not unique. It can be simply understood that there are differences in the installation position of the reflector 404 and the lens 402 in each design scheme, such as the horizontal position spacing of the reflector 404 and the lens 402 is different, or the vertical height spacing is different. In this case, there is no need to limit the installation method of the reflector 404 and the lens 402, but the offset of the collimator module 2 can be adjusted, so that the offset adjustment of the collimator module 2 is adapted to reflectors 404 and lenses 402 with different installation methods, so as to expand the scope of application of the entire adjustment device.

[0049] It is worth mentioning that the optical axis center line of the lens 402 is within a certain range around the chip center of the camera 403, which specifically means that parallel light will form a light spot on the camera 403, and the pixel coordinates of the center point of the light spot on the camera 403 are obtained, and a range value is set according to the actual assembly requirements. The pixel coordinates of the center point are expanded according to the range value to form an area, and the chip center of the camera 403 falls within the area, which means that the optical axis center line of the lens 402 is around the chip center of the camera 403.

[0050] In some embodiments, the translation mechanism further includes a translation adjustment component 408, and the fixed frame 401 is installed on the base plate 1 through the translation adjustment component 408. The translation adjustment component 408 is used to drive the fixed frame 401 to move along the X-axis direction, and / or to drive the fixed frame 401 to move along the Y-axis direction. There are three driving modes of the translation adjustment component 408. The first is to drive the fixed frame 401 to move along the X-axis direction alone, the second is to drive the fixed frame 401 to move along the Y-axis direction alone, and the third is not only to drive the fixed part to move along the X-axis direction, but also to move along the Y-axis direction. The third is a preferred solution. The camera 403 and the lens 402 can be driven to move as a whole through the translation adjustment component 408, which is convenient for adjusting the specific position of the imaging module 4 in the X-axis direction and the Y-axis direction, thereby ensuring the imaging clarity of the imaging module 4.

[0051] In addition, arranging the collimator module 2, the optical test module 3 and the imaging module 4 along a straight line on the bottom plate 1 can save the installation space of the entire device and ensure the relative position alignment between the modules.

[0052] In the above scheme, it should be noted that, in the process of adjusting the lens 402 so that the imaging module 4 can clearly image the optical test module 3, the focus ring of the lens 402 is adjusted specifically to make the camera 403 image clearly; and observing the pixel coordinates of the center of the parallel light in the camera 403 is to directly use the camera 403 to capture the picture, and then obtain the pixel coordinate information by observing the image.

[0053] Furthermore, if Figure 5As shown, the angle adjustment assembly 405 includes a first fixed plate 4052, a second fixed plate 4053 and a rotation adjustment plate 4051, the lens 402 is mounted on the first fixed plate 4052, the camera 403 is mounted on the second fixed plate 4053, at least one of the first fixed plate 4052 and the second fixed plate 4053 is rotatably connected to the rotation adjustment plate 4051, and a preferred solution is that the first fixed plate 4052 and the second fixed plate 4053 are both rotatably connected to the rotation adjustment plate 4051, the X-axis adjustment member 406 is arranged on the rotation adjustment plate 4051, and the power end is connected to the first fixed plate 4052, and is used to drive the first fixed plate 4052 to move along the X-axis direction, the camera 403 is movably mounted on the second fixed plate 4053, and the Y-axis adjustment member 407 is mounted on the second fixed plate 4053, and the power end is connected to the camera 403, and is used to drive the camera 403 to move along the Y-axis direction. In this solution, the first fixing plate 4052 is fixedly connected to the lens 402, and the second fixing plate 4053 is movably connected to the camera 403. The movably connected here means that the camera 403 can move relative to the second fixing plate 4053. The first fixing plate 4052 and the second fixing plate 4053 are connected respectively by rotating the adjustment plate 4051, that is, the angle between the first fixing plate 4052 and the second fixing plate 4053 can be adjusted by rotating the adjustment plate 4051, and then the angle between the camera 403 and the lens 402 can be adjusted. The rotating adjustment plate 4051 does not need to be directly connected to the first fixing plate 4052. The camera 403 and the lens 402 are touched to prevent damage during the rotation process. The rotating adjustment plate 4051 is mainly used to adjust the angle between the lens 402 and the camera 403 before the parallel light is emitted. After the parallel light is emitted, the adjustment action is mainly achieved through the X-axis adjustment member 406 and the Y-axis adjustment member 407. The X-axis adjustment member 406 can accurately adjust the distance between the camera 403 and the lens 402 in the X-axis direction, and the Y-axis adjustment member 407 can accurately adjust the moving distance of the camera 403 in the Y-axis direction, thereby adjusting the distance between the camera 403 and the lens 402 in the Y-axis direction.

[0054] Furthermore, an arc-shaped through hole is provided on one side of the rotation adjustment plate 4051 relative to the first fixed plate 4052, and the top end of the first fixed plate 4052 is movably mounted on the arc-shaped through hole; the rotation adjustment plate 4051 and the second fixed plate 4053 are rotatably connected via a rotation axis. The first fixed plate 4052 is movable in the arc-shaped through hole, that is, it can rotate relative to the rotation adjustment plate 4051, and the second fixed plate 4053 can rotate relative to the rotation adjustment plate 4051 around the rotation axis. Both the first fixed plate 4052 and the second fixed plate 4053 can rotate relative to the rotation adjustment plate 4051, and the two rotation connections can adjust more different angles to ensure clear imaging.

[0055] As an optional specific implementation scheme, the first fixed plate 4052 and the rotating adjustment plate 4051 are rotatably connected, the second fixed plate 4053 is fixedly connected to the rotating adjustment plate 4051, and the angle adjustment between the lens 402 and the camera 403 is specifically achieved by rotating the first fixed plate 4052.

[0056] As another optional specific implementation scheme, the first fixed plate 4052 is fixedly connected to the rotating adjustment plate 4051, and the second fixed plate 4053 is rotatably connected to the rotating adjustment plate 4051. In this solution, the angle between the camera 403 and the lens 402 is adjusted by rotating the second fixed plate 4053.

[0057] Optionally, two rotating adjustment plates 4051 are provided, one of which is connected to the top of the first fixing plate 4052 and the top of the second fixing plate 4053, and the other of which is connected to the bottom of the first fixing plate 4052 and the bottom of the second fixing plate 4053. Two X-axis adjustment members 406 are also provided, and the two X-axis adjustment members 406 are respectively provided on the two rotating adjustment plates 4051, and the power ends of the two X-axis adjustment members 406 are connected to the first fixing plate 4052. By providing two rotating adjustment members and two corresponding X-axis adjustment members 406 up and down, the purpose of stable angle adjustment is achieved, and the accuracy of the spacing adjustment of the camera 403 and the lens 402 in the X-axis direction is also ensured.

[0058] Specifically, the X-axis adjusting member 406 and the Y-axis adjusting member 407 are both separate cards, and the reflecting member 404 is a reflecting mirror.

[0059] As an optional specific implementation scheme, the X-axis adjustment member 406 and the Y-axis adjustment member 407 can be screw-adjustable, and their driving forces can both be driving motors. The power output ends of the two driving motors are respectively connected to the lens 402 and the camera 403. When the driving motors are in operation, they can accurately drive the lens 402 to move in the X-axis direction and drive the camera 403 to move in the Y-axis direction.

[0060] Furthermore, if Figure 7 , Figure 8As shown, the optical test module 3 can rotate relative to the base plate 1, and specifically includes a rotating member 301, a mounting member 302 and an optical test board 303. The rotating member 301 is mounted on the base plate 1, the mounting member 302 is rotatably mounted on the rotating member 301, and the optical test board 303 is mounted on the mounting member 302 and is vertically distributed with respect to the base plate 1. The mounting member 302 is used to carry the optical test board 303, and the optical test board 303 is connected to the rotating member 301 in a vertical manner, so that the optical test board 303 and the base plate 1 maintain a vertical relationship, and then the rotation of the optical test board 303 is controlled by the rotating member 301 and the mounting member 302, so that the optical test board 303 has different tilt angles relative to the lens 402, so as to meet the adaptation of the imaging system to different Sham angles, thereby realizing the imaging effect inspection and Sham angle measurement of imaging systems with different Sham angles, and effectively broadening the application scenarios of the imaging system.

[0061] At the same time, different optical test boards 303 can be replaced according to the use requirements, for example, optical test boards 303 with different heights or widths can be replaced according to the imaging field of view of the imaging module 4 and the height range that needs to be tested. Different test environments also require different optical test boards 303 to match. For example, when testing indoors and outdoors, due to different light conditions, different types of optical test boards 303 may need to be selected to adapt to different light conditions to ensure that the imaging module 4 can correctly capture images; and the parameters of the camera 403, such as focal length, aperture, ISO, etc., may affect the imaging effect. If the parameters of the camera 403 change, the optical test board 303 needs to be replaced to match these parameters to ensure that the camera 403 can obtain the best imaging effect.

[0062] In order to prevent the optical test board 303 and the mounting member 302 from interfering with and blocking the direct radiation of the parallel light, through holes are correspondingly provided on the mounting member 302 and the optical test board 303 for the light of the collimator module 2 to pass through. The parallel light emitted by the collimator module 2 can be irradiated onto the reflector 404 along a straight line and reflected back to be received.

[0063] Preferably, if Figure 6 As shown, the collimator module 2 includes a collimator 201 and an adjustment mechanism 202, wherein the adjustment mechanism 202 connects the base plate 1 and the collimator 201, and is used to drive the collimator 201 to move along the X-axis direction, the Y-axis direction, and the Z-axis direction. The offset of the parallel light is adjusted in three-dimensional space by the adjustment mechanism 202 to ensure that the parallel light emitted by the collimator module 2 is consistent with the optical axis center line of the lens 402 in the X-axis direction and the Y-axis direction, and remains parallel in the Z-axis direction.

[0064] Specifically, the adjustment mechanism 202 includes a first adjustment member 2021, a second adjustment member 2022 and a third adjustment member 2023, wherein the first adjustment member 2021 is mounted on the bottom plate 1, the second adjustment member 2022 is movably mounted on the first adjustment member 2021, the third adjustment member 2023 is movably mounted on the second adjustment member 2022, the collimator 201 is movably mounted on the third adjustment member 2023, the first adjustment member 2021 is used to drive the second adjustment member 2022 to move along the Y-axis direction, the second adjustment member 2022 is used to drive the third adjustment member 2023 to move along the Z-axis direction, the third adjustment member 2023 is used to drive the collimator 201 to move along the X-axis direction, and the collimator 201 is a self-collimating collimator with a graticule installed, and the graticule is a crosshair. In this solution, the self-collimating collimator 201 is used as the core to assist the adjustment mechanism 202 in the three directions of XYZ to achieve the direction adjustment of the optical reference. Among them, the self-collimating collimator 201 is the core part, which is used to emit parallel light, receive parallel light and output offset. The first adjustment member 2021 and the third adjustment member 2023 respectively control the movement of the self-collimating collimator 201 in the Y-axis and X-axis directions, and the second adjustment member 2022 controls the movement in the Z-axis direction to ensure that the parallel light emitted by the self-collimating collimator 201 is consistent with the optical axis center line of the lens 402 in the X-axis direction and the Y-axis direction, and is parallel in the Z-axis direction. At the same time, the crosshair graticule has extremely high precision and can provide high-precision measurement results, which is very important for applications that require high-precision measurement; moreover, the scale on the crosshair graticule is clear and distinct, which is easy to observe and read, so that the operator can quickly obtain accurate measurement data during use.

[0065] In addition, the base plate 1 is capable of providing a high-precision installation platform, which needs to ensure sufficiently high-precision flatness and sufficient strength to ensure the stability of the entire system.

[0066] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0067] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0068] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0069] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. An imaging system adjustment device, characterized in that: include: A base plate (1), and a collimator module (2), an optical test module (3) and an imaging module (4) arranged in sequence and spaced apart along the length direction of the base plate (1), wherein the optical test module (3) is used to assist in correcting the imaging clarity of the imaging module (4), the imaging module (4) comprises a lens (402) and a camera (403), and the collimator module (2) is used to correct the deviation between the optical axis center line of the lens (402) and the chip center of the camera (403).

2. The imaging system adjustment device according to claim 1, characterized in that: The imaging module (4) further comprises a first adjustment mechanism and a second adjustment mechanism, wherein the first adjustment mechanism is used to adjust the position of the lens (402) in the X-axis direction, the Y-axis direction and the Z-axis direction, and the second adjustment mechanism is used to adjust the position of the camera (403) in the X-axis direction, the Y-axis direction and the Z-axis direction.

3. The imaging system adjustment device according to claim 2, characterized in that: The first adjustment mechanism includes a Z-axis adjustment member, and the second adjustment mechanism includes a Y-axis adjustment member (407), wherein the Z-axis adjustment member is used to adjust the position of the lens (402) in the Z-axis direction, and the Y-axis adjustment member (407) is used to drive the camera (403) to move in the Y-axis direction.

4. The imaging system adjustment device according to claim 3, characterized in that: The first adjustment mechanism further comprises an X-axis adjustment member (406), and the X-axis adjustment member (406) is used to adjust the distance between the lens (402) and the camera (403) in the X-axis direction.

5. The imaging system adjustment device according to claim 1, characterized in that: The imaging module (4) further comprises an angle adjustment component (405), the two sides of which are respectively connected to the lens (402) and the camera (403), and the angle adjustment component (405) is used to adjust the angle between the lens (402) and the camera (403).

6. The imaging system adjustment device according to claim 5, characterized in that: The angle adjustment assembly (405) comprises a first fixed plate (4052), a second fixed plate (4053) and a rotation adjustment plate (4051); the lens (402) is mounted on the first fixed plate (4052); the camera (403) is mounted on the second fixed plate (4053); the first fixed plate (4052) is rotationally connected to one side of the rotation adjustment plate (4051); and / or the second fixed plate (4053) is rotationally connected to the other side opposite to the rotation adjustment plate (4051).

7. The imaging system adjustment device according to any one of claims 1 to 6, characterized in that: The imaging module (4) further comprises a translation mechanism, wherein the translation mechanism is used to drive the lens (402) and the camera (403) to move synchronously along the X-axis direction and / or synchronously along the Y-axis direction.

8. The imaging system adjustment device according to claim 7, characterized in that: The translation mechanism comprises a fixed frame (401) and a translation adjustment component (408); the lens (402) and the camera (403) are both mounted on the fixed frame (401); the fixed frame (401) is mounted on the base plate (1) via the translation adjustment component (408); the translation adjustment component (408) is used to drive the fixed frame (401) to move along the X-axis direction, and / or to drive the fixed frame (401) to move along the Y-axis direction.

9. The imaging system adjustment device according to claim 8, characterized in that: The imaging module (4) further comprises a reflective element (404), wherein the reflective element (404) is mounted on the fixing frame (401), and a reflective surface of the reflective element (404) is vertically distributed to a center line of an optical axis of the lens (402).

10. The imaging system adjustment device according to any one of claims 1 to 6, characterized in that: The optical test module (3) comprises a rotating member (301), a mounting member (302) and an optical test board (303); the rotating member (301) is mounted on the base plate (1); the mounting member (302) is rotatably mounted on the rotating member (301); and the optical test board (303) is mounted on the mounting member (302) and is vertically distributed with respect to the base plate (1).

11. The imaging system adjustment device according to claim 10, characterized in that: The mounting member (302) and the optical test plate (303) are correspondingly provided with through holes (304) for light from the collimator module (2) to pass through.

12. The imaging system adjustment device according to any one of claims 1 to 6, characterized in that: The collimator module (2) comprises a collimator (201) and an adjustment mechanism (202), wherein the adjustment mechanism (202) is connected to the base plate (1) and the collimator (201), and the adjustment mechanism (202) is used to drive the collimator (201) to move respectively along the X-axis direction, the Y-axis direction and the Z-axis direction.

13. The imaging system adjustment device according to claim 12, characterized in that: The adjustment mechanism (202) comprises a first adjustment member (2021), a second adjustment member (2022) and a third adjustment member (2023); the first adjustment member (2021) is mounted on the base plate (1); the second adjustment member (2022) is mounted on the first adjustment member (2021); the third adjustment member (2023) is mounted on the second adjustment member (2022); the collimator (201) is movably mounted on the third adjustment member (2023); the first adjustment member (2021) is used to drive the second adjustment member (2022) to move along the Y-axis direction; the second adjustment member (2022) is used to drive the third adjustment member (2023) to move along the Z-axis direction; and the third adjustment member (2023) is used to drive the collimator (201) to move along the X-axis direction.

Images