Optical detection device

Abstract

The present application relates to the technical field of optical detection, and particularly relates to an optical detection device, comprising: an objective lens, a polarized light detection component, a tube lens component and a camera arranged in sequence along an optical axis direction; the tube lens component comprises a plurality of tube lenses, the plurality of tube lenses are arranged along a direction perpendicular to the optical axis, one of the plurality of tube lenses is arranged in a light beam path between the objective lens and the camera, and the tube lens located in the light beam path is switchable; the polarized light detection component comprises a plurality of optical elements, one of the plurality of optical elements is arranged in the light beam path, and the optical element located in the light beam path is switchable. The present application is at least beneficial to realize switching of the plurality of tube lenses and switching of the plurality of optical elements.

Description

Technical Field

[0001] This invention belongs to the field of optical detection technology, and in particular relates to an optical detection device. Background Technology

[0002] Currently, with the development of optical technology, optical inspection systems using large numerical aperture lenses and TDI (Time Delay and Integration) cameras have been widely used in optical inspection technologies in related fields. Due to the large size and weight of the lenses, how to reasonably set the positions of various components in the optical inspection system and how to switch between different magnification lenses have become urgent problems to be solved in the design of optical inspection systems. Summary of the Invention

[0003] In view of this, the present invention aims to provide an optical detection device that at least facilitates the switching of multiple tube mirrors and multiple optical elements.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] This invention provides an optical detection device, comprising: an objective lens, an analyzer assembly, a lens assembly, and a camera arranged sequentially along the optical axis; the lens assembly includes multiple lenses arranged perpendicular to the optical axis, one of which is disposed in the beam path between the objective lens and the camera, and the lens in the beam path is switchable; the analyzer assembly includes multiple optical elements, one of which is disposed in the beam path, and the optical element in the beam path is switchable.

[0006] In some embodiments, the optical inspection device further includes a base, an objective lens, an analyzer assembly, and a tube lens assembly disposed on the base, and a camera disposed on the base via a camera mount.

[0007] In some embodiments, the endoscope assembly further includes an endoscope support and an endoscope switching motor. Multiple endoscopes are mounted on the endoscope support, and the endoscope switching motor is used to drive the endoscope support to move along the arrangement direction of the endoscopes, so as to switch any endoscope into the beam path.

[0008] In some embodiments, the endoscope is mounted on the endoscope support via a first adjustment structure. The first adjustment structure can move the endoscope to adjust its position along the optical axis, its pitch angle relative to the optical axis, and its yaw angle relative to the optical axis.

[0009] In some embodiments, the first adjustment structure comprises a tube lens mounting plate and a mounting bracket, the tube lens mounting plate is arranged on the tube lens bracket, the tube lens is arranged on the side of the tube lens mounting plate away from the tube lens bracket through the mounting bracket, and the mounting bracket is movable along the optical axis direction relative to the tube lens mounting plate to realize the position adjustment of the tube lens along the optical axis direction relative to the tube lens bracket.

[0010] In some embodiments, the tube lens mounting plate has oppositely arranged first and second axial screw seats, and the first and second axial screw seats are respectively located on the opposite sides of the mounting bracket in the optical axis direction, the first axial screw is assembled on the first axial screw seat, and the second axial screw is assembled on the second axial screw seat; wherein the opposite sides of the mounting bracket in the optical axis direction are respectively in contact with the free ends of the first and second axial screws, the first axial screw is rotated, and the second axial screw is correspondingly rotated to move the mounting bracket along the optical axis direction relative to the tube lens mounting plate.

[0011] In some embodiments, the tube lens bracket has a support base, and the first adjustment structure further comprises an adapter plate, the tube lens mounting plate is arranged on the support base through the adapter plate, and the tube lens mounting plate is rotatable relative to the adapter plate along the axial direction of the tube lens mounting plate to realize the yaw angle adjustment of the tube lens relative to the optical axis.

[0012] In some embodiments, the inclination angle of the adapter plate relative to the support base is adjustable to realize the pitch angle adjustment of the tube lens relative to the optical axis; the adapter plate is a rectangular plate, four corners of the adapter plate are used as pitch adjustment seats, the pitch adjustment seats have pitch adjustment screw holes for assembling pitch adjustment assemblies; the pitch adjustment assembly comprises a body, a spherical washer and a pitch screw, the body has a mounting hole, the pitch screw is assembled in the mounting hole to connect the body and the support base, the spherical washer is sleeved on the outer circle of the pitch screw and located between the body and the support base, the spherical washer is a semicircular structure protruding towards the body, and one side of the body towards the spherical washer has an arc-shaped recess matched with the spherical washer; the outer circle of the body has a first thread matched with the pitch adjustment screw hole, and the body is assembled in the pitch adjustment screw hole through the first thread; the body is rotated to adjust the inclination angle of the adapter plate relative to the support base.

[0013] In some embodiments, the polarization detection assembly further comprises a first rotary motor and a rotating wheel, the rotating wheel is connected with the first rotary motor, and a plurality of optical elements are arranged on the rotating wheel in a spaced manner; the first rotary motor drives the rotating wheel to rotate to switch the optical elements in the light beam path.

[0014] In some embodiments, the polarization detection assembly further comprises a polarization detection base and a connecting part, the polarization detection base is arranged on the base, and the first rotary motor is connected with the polarization detection base through the connecting part.

[0015] In some embodiments, the polarization component further comprises a second rotating motor, the plurality of optical elements comprises at least one polarizing optical element, the polarizing optical element is mounted on the rotating wheel by the second rotating motor, and the second rotating motor can drive the polarizing optical element to rotate along an axis of the polarizing optical element.

[0016] In some embodiments, the camera base comprises a base body and a camera adjusting component, the base body is arranged on the base, and the camera is arranged on the base body by the camera adjusting component; the camera adjusting component can drive the camera to move to adjust the position of the camera along the optical axis, the rotation of the camera along the optical axis, the position of the camera in a plane perpendicular to the optical axis, and the yaw angle of the camera relative to the optical axis.

[0017] In some embodiments, the camera adjusting component comprises a camera support and a first adjusting plate, the camera is arranged on the camera support, the camera support is arranged on the first adjusting plate, one side of the camera support is provided with a first rotating screw seat and a second rotating screw seat arranged oppositely, the first rotating screw seat is used for assembling a first rotating screw, and the second rotating screw seat is used for assembling a second rotating screw; the first adjusting plate is provided with a rotating adjusting stopper between the first rotating screw seat and the second rotating screw seat; wherein the opposite sides of the rotating adjusting stopper are in contact with the free ends of the first rotating screw and the second rotating screw respectively, the first rotating screw is rotated, the second rotating screw is correspondingly rotated, the camera support is rotated relative to the first adjusting plate along the optical axis, and the camera is rotated along the optical axis.

[0018] In some embodiments, the camera adjusting component further comprises a second adjusting plate, the first adjusting plate is arranged on the second adjusting plate, one side of the first adjusting plate is provided with a yaw adjusting screw seat, the yaw adjusting screw seat is provided with a rotating adjusting stopper, and the yaw adjusting screw seat is used for assembling a yaw adjusting screw, the free end of the yaw adjusting screw abuts against the second adjusting plate, the yaw adjusting screw is rotated, the first adjusting plate is inclined relative to the second adjusting plate, and the yaw angle adjustment of the camera is realized.

[0019] In some embodiments, the camera adjusting component further comprises a moving motor and a motor support, the opposite sides of the moving motor are connected with the camera support and the motor support respectively, and the moving motor is used to drive the camera support to move relative to the motor support along the direction of the optical axis to realize the position adjustment of the camera along the optical axis.

[0020] In some embodiments, the camera adjusting component further comprises a third adjusting plate, the motor support is arranged on the third adjusting plate, the third adjusting plate is arranged on the base body, the third adjusting plate is provided with a short-side adjusting screw seat, the short-side adjusting screw seat is used for assembling a short-side adjusting screw, the free end of the short-side adjusting screw is connected with the motor support, and the short-side adjusting screw is rotated to drive the motor support to move relative to the third adjusting plate along a first direction perpendicular to the optical axis.

[0021] In some embodiments, the base body has a first long-side adjusting screw seat and a second long-side adjusting screw seat, the first long-side adjusting screw seat is used for assembling a first long-side adjusting screw, the second long-side adjusting screw seat is used for assembling a second long-side adjusting screw, and the first long-side adjusting screw seat and the second long-side adjusting screw seat are located on opposite sides of the third adjusting plate; the third adjusting plate has a first abutting portion and a second abutting portion, a free end of the first long-side adjusting screw is in contact with the first abutting portion, a free end of the second long-side adjusting screw is in contact with the second abutting portion, rotating the first long-side adjusting screw and correspondingly rotating the second long-side adjusting screw enables the third adjusting plate to move relative to the base body in a second direction perpendicular to the optical axis, and a plane in which the first direction and the second direction lie is a plane perpendicular to the optical axis.

[0022] Compared with the prior art, the application can achieve the following beneficial effects:

[0023] In the optical detection device provided by the embodiment of the application, the plurality of tube lenses behind the objective lens are switched to switch the tube lens with the required magnification into the beam path of the optical detection device, and the required optical element can be selected from the plurality of optical elements to be switched into the beam path of the optical detection device, which is beneficial to improving the adaptability of the optical detection device to different working conditions. In addition, the tube lens is provided with a multi-dimensional adjusting mechanism, which can realize multi-dimensional angle adjustment or multi-dimensional position adjustment of the tube lens. The camera is also provided with a corresponding multi-dimensional adjusting mechanism, which can realize multi-dimensional angle adjustment or multi-dimensional position adjustment of the camera. In addition, in the optical detection device provided by the embodiment of the application, not only is the multi-dimensional adjusting mechanism arranged in the limited space, but also the adjustment in each dimension is relatively independent, coupling is reduced, and the assembly and adjustment process of each component in the optical detection device is relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and serve as an appositive explanation of the illustrative embodiments of the present application and their description, and do not constitute improper limitations of the present application. In the drawings:

[0025] Figure 1 FIG. 1 is a structural schematic diagram of an optical detection device according to an embodiment of the present application;

[0026] Figure 2 FIG. 2 is another structural schematic diagram of an optical detection device according to an embodiment of the present application;

[0027] Figure 3 FIG. 3 is a structural schematic diagram of a polarized light detection assembly according to an embodiment of the present application;

[0028] Figure 4A structural schematic view of the tube mirror assembly according to the embodiment of the present application in one perspective view;

[0029] Figure 5 A partial enlarged structural schematic view of the tube mirror assembly according to the embodiment of the present application;

[0030] Figure 6 A structural schematic view of the tube mirror assembly according to the embodiment of the present application in another perspective view;

[0031] Figure 7 A top view of the tube mirror assembly according to the embodiment of the present application;

[0032] Figure 8 A sectional view of the partial structure of the tube mirror assembly according to the embodiment of the present application;

[0033] Figure 9 A structural schematic view of the pitch adjusting assembly according to the embodiment of the present application;

[0034] Figure 10 A structural schematic view of the camera base and the camera according to the embodiment of the present application in one perspective view;

[0035] Figure 11 A structural schematic view of the camera adjusting assembly and the camera according to the embodiment of the present application in one perspective view;

[0036] Figure 12 A sectional view of the partial structure of the camera adjusting assembly according to the embodiment of the present application;

[0037] Figure 13 A structural schematic view of the camera adjusting assembly and the camera according to the embodiment of the present application in another perspective view;

[0038] Figure 14 A structural schematic view of the camera base and the camera according to the embodiment of the present application in another perspective view;

[0039] Figure 15 A structural schematic view of the partial structure of the polariscope assembly according to the embodiment of the present application in one perspective view;

[0040] Figure 16 A structural schematic view of the partial structure of the polariscope assembly according to the embodiment of the present application in another perspective view. DETAILED DESCRIPTION

[0041] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and do not constitute a limitation on the present application.

[0042] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0045] The present application will be described in detail below with reference to the drawings and embodiments.

[0046] Reference Figures 1 to 14The optical detection device provided by the embodiment of the present application comprises: an objective lens 1, a polarized detection assembly 3, a tube lens assembly and a camera 2 arranged in sequence along an optical axis AA1; the tube lens assembly comprises a plurality of tube lenses 4, the plurality of tube lenses 4 are arranged along a direction perpendicular to the optical axis AA1, one of the plurality of tube lenses 4 is arranged in a light beam path between the objective lens 1 and the camera 2, and the tube lens 4 located in the light beam path is switchable; the polarized detection assembly 3 comprises a plurality of optical elements 32, one of the plurality of optical elements 32 is arranged in the light beam path, and the optical element 32 located in the light beam path is switchable.

[0047] In the embodiment, the magnifications of the plurality of tube lenses 4 in the tube lens assembly can be different, and the tube lens 4 with a required magnification can be switched into the light beam path between the objective lens 1 and the camera 2 according to the use requirement. In some examples, the tube lens assembly can comprise two tube lenses 4, and in other examples, the tube lens assembly can comprise three or four tube lenses 4.

[0048] In some embodiments, referring to Figure 1 and Figure 2 , the optical detection device further comprises a first housing 21 and a second housing 22, part of the polarized detection assembly 3 is arranged in a first containing cavity surrounded by the first housing 21 and extends from the first containing cavity to a second containing cavity surrounded by the second housing 22, the first containing cavity and the second containing cavity are in communication with each other, and the tube lens assembly is arranged in the second containing cavity.

[0049] In some embodiments, referring to Figures 1 to 2 , the optical detection device further comprises a base 10, the objective lens 1, the polarized detection assembly 3 and the tube lens assembly are arranged on the base 10, and the camera 2 is arranged on the base 10 through a camera base.

[0050] In some embodiments, referring to Figure 1 and Figure 2 , the optical axis AA1 has an included angle with respect to the horizontal direction and the vertical direction, that is, the optical axis AA1 is arranged obliquely, and it can be understood that, when the optical axis AA1 is arranged obliquely, it is difficult to achieve the arrangement of the objective lens 1, the polarized detection assembly 3, the tube lens assembly and the camera 2 along the optical axis AA1, the alignment of each structure and the switching of the tube lens 4, and the optical detection device provided by the embodiment of the present application achieves the arrangement of the objective lens 1, the polarized detection assembly 3, the tube lens assembly and the camera 2 along the oblique optical axis AA1 through the mounting structure of the base 10 and the like, and simultaneously achieves the switching of the tube lens 4, thereby ensuring that the optical detection device has strong practicability.

[0051] In some examples, the objective lens 1 can be arranged on the base 10 by using the pin positioning combined with the screw fixing. In some examples, a handle for moving the optical detection device can be arranged on the base 10.

[0052] In some embodiments, referring toFigure 4 and Figure 5 The tube lens assembly further comprises a tube lens holder 46 and a tube lens switching motor 45, a plurality of tube lenses 4 are arranged on the tube lens holder 46, and the tube lens switching motor 45 is used to drive the tube lens holder 46 to move along the arrangement direction of the tube lenses 4, so as to switch any tube lens 4 into the light beam path. The switching of the tube lens 4 is realized by the tube lens switching motor 45, which is conducive to reducing the switching difficulty of the tube lens 4.

[0053] In some examples, the tube lens holder 46 is connected to the base 10 through the tube lens switching motor 45.

[0054] In some embodiments, the tube lens 4 is arranged on the tube lens holder 46 through a first adjusting structure, and the first adjusting structure can drive the tube lens 4 to move, so as to make the tube lens 4 perform position adjustment along the optical axis AA1 direction, pitch angle adjustment relative to the optical axis AA1, and yaw angle adjustment relative to the optical axis AA1. The first adjusting structure is a multi-dimensional adjusting mechanism of the tube lens 4. Through the first adjusting structure, multi-dimensional angle adjustment or multi-dimensional position adjustment of the tube lens 4 can be realized. In this way, the position or angle of the tube lens 4 can be adjusted in real time during assembly, so that the cooperation of the tube lens 4 with other components meets the requirements.

[0055] In some embodiments, referring to Figures 4 to 5 The first adjusting structure comprises a tube lens mounting plate 42 and a mounting bracket 41, the tube lens mounting plate 42 is arranged on the tube lens holder 46, the tube lens 4 is arranged on the side of the tube lens mounting plate 42 away from the tube lens holder 46 through the mounting bracket 41, and the mounting bracket 41 is movable relative to the tube lens mounting plate 42 along the optical axis AA1 direction, so as to realize the position adjustment of the tube lens 4 relative to the tube lens holder 46 along the optical axis AA1 direction.

[0056] In some embodiments, referring to Figure 6 The tube lens mounting plate 42 has oppositely arranged first and second axial screw seats 422 and 424, and the first and second axial screw seats 422 and 424 are respectively located on opposite sides of the mounting bracket 41 in the optical axis AA1 direction. The first axial screw 423 is assembled on the first axial screw seat 422, and the second axial screw 425 is assembled on the second axial screw seat 424. The opposite sides of the mounting bracket 41 in the optical axis AA1 direction are respectively in contact with the free ends of the first and second axial screws 423 and 425. Rotating the first axial screw 423 and the corresponding second axial screw 425 can make the mounting bracket 41 move relative to the tube lens mounting plate 42 along the optical axis AA1 direction. Specifically, the first and second axial screws 423 and 425 can be rotated in a preset direction, so as to make the mounting bracket 41 drive the tube lens 4 to move in the preset direction. The preset direction can be the optical axis direction in which the objective lens 1 points to the camera 2, or the optical axis direction in which the camera 2 points to the objective lens 1.

[0057] In some embodiments, referring to Figure 4 , the mounting bracket 41 has a plurality of first pre-tightening mounting holes 408 penetrating the mounting bracket 41 along the thickness direction of the tube mirror mounting plate 42, and the mounting bracket 41 is fixed on the tube mirror mounting plate 42 by using first pre-tightening screws matched with the first pre-tightening mounting holes 408. In the direction of the optical axis AA1, the size of the first pre-tightening mounting holes 408 is larger than the size of the first pre-tightening screws. In this way, even if the mounting bracket 41 is displaced in the direction of the optical axis, the mounting bracket 41 can be fixed on the tube mirror mounting plate 42 by using the first pre-tightening screws.

[0058] In some embodiments, referring to Figure 5 , the tube mirror bracket 46 has a support base 44, and the first adjustment structure further includes an adapter plate 43, and the tube mirror mounting plate 42 is arranged on the support base 44 through the adapter plate 43, and the tube mirror mounting plate 42 is rotatable relative to the adapter plate 43 along the axial direction of the tube mirror mounting plate 42 to adjust the yaw angle of the tube mirror 4 relative to the optical axis AA1. Wherein, the axial direction of the tube mirror mounting plate 42 refers to the axial direction of the thickness direction of the tube mirror mounting plate 42.

[0059] In some embodiments, referring to Figure 8 , the side of the tube mirror mounting plate 42 facing the adapter plate 43 has a rotating shaft 421, and the side of the adapter plate 43 facing the tube mirror mounting plate 42 has a rotating shaft hole 410 matched with the rotating shaft 421. By arranging the matched rotating shaft 421 and rotating shaft hole 410, the tube mirror mounting plate 42 can be rotated relative to the adapter plate 43, and the rotating structure is relatively simple and does not occupy a large setting space.

[0060] In some embodiments, referring to Figure 6One side of the adapter plate 43 has a first adjusting screw seat 431 and a second adjusting screw seat 432, the first adjusting screw seat 431 is equipped with a first adjusting screw 433, and the second adjusting screw seat 432 is equipped with a second adjusting screw 434; one side of the tube lens mounting plate 42 has a middle blocking piece 421, the first adjusting screw seat 431 and the second adjusting screw seat 432 are respectively arranged on opposite sides of the middle blocking piece 421 in the direction of the optical axis AA1, and the opposite sides of the middle blocking piece 421 in the direction of the optical axis AA1 are respectively in contact with the free end of the first adjusting screw 433 and the free end of the second adjusting screw 434, rotating the first adjusting screw 433 and the corresponding second adjusting screw 434 to rotate the tube lens mounting plate 42 relative to the adapter plate 43 in the axial direction of the tube lens mounting plate 42. The first adjusting screw 433 and the second adjusting screw 434 on both sides of the middle blocking piece 421 form a pair of top structures, rotating one of the first adjusting screw 433 and the second adjusting screw 434 towards the middle blocking piece 421 and rotating the other one away from the middle blocking piece 421, so that the tube lens mounting plate 42 can be rotated relative to the adapter plate 43, and then the tube lens mounting plate 42 drives the tube lens 4 to rotate in the axial direction of the thickness of the tube lens mounting plate 42, so as to adjust the deflection angle of the tube lens 4.

[0061] In some embodiments, the inclination angle of the adapter plate 43 relative to the support base 44 is adjustable to realize the pitch angle adjustment of the tube lens 4 relative to the optical axis AA1.

[0062] In some embodiments, referring to Figure 7 and Figure 9 The adapter plate 43 is a rectangular plate, and four corners of the adapter plate 43 are used as pitch adjusting seats 401, the pitch adjusting seats 401 have pitch adjusting screw holes for assembling pitch adjusting assemblies 402; the pitch adjusting assembly 402 includes a body 4021, a spherical washer 4024 and a pitch screw 4022, the body 4021 has a mounting hole, the pitch screw 4022 is assembled in the mounting hole to connect the body 4021 with the support base 44, the spherical washer 4024 is sleeved on the outer circle of the pitch screw 4022 and located between the body 4021 and the support base 44, the spherical washer 4024 is a semicircular structure protruding towards the body 4021, and one side of the body 4021 towards the spherical washer 4024 has an arc-shaped recess matched with the spherical washer 4024; the outer circle of the body 4021 has a first thread matched with the pitch adjusting screw hole, and the body 4021 is assembled in the pitch adjusting screw hole through the first thread, and rotating the body 4021 to adjust the inclination angle of the adapter plate 43 relative to the support base 44. It should be noted that during the adjustment of the inclination angle of the adapter plate 43, the pitch adjusting assemblies 402 corresponding to the four pitch adjusting seats 401 need to be adjusted accordingly according to the adjustment requirements.

[0063] In some embodiments, referring to Figure 9 The pitch adjusting assembly 402 further comprises a screw washer 4023, the mounting hole comprises a first through hole 4026 and a second through hole 4025 connected in communication, the first through hole 4026 has a smaller hole diameter than the second through hole 4025, the threaded end of the pitch screw 4022 is located in the second through hole 4025, the free end of the pitch screw 4022 penetrates through the first through hole 4026, the screw washer 4023 is sleeved on the pitch screw 4022 and located at the corner region connecting the second through hole 4025 and the first through hole 4026, which is beneficial to reduce the resistance when the body 4021 rotates.

[0064] In some embodiments, the end of the body 4021 away from the spherical washer 4024 has a notch, and a corresponding adjusting tool is inserted into the notch, so that the adjusting tool can be engaged on the body 4021, and then an external force can be applied to the body 4021 through the adjusting tool to rotate the body 4021, which is beneficial to reduce the adjustment difficulty.

[0065] In some embodiments, referring to Figure 6 Each pitch adjusting seat 401 has a limiting mounting hole for assembling a spring and a limiting piece 403, the limiting piece 403 is connected to the support base 44 through the spring, and the limiting piece 403 and the spring apply a force to the adapter plate 43 in the thickness direction of the adapter plate 43 to limit the adapter plate 43.

[0066] In some embodiments, referring to Figure 6 and Figure 7 The adapter plate 43 has a first notch 406 and a corresponding first positioning piece 404 at opposite ends arranged along the optical axis AA1 direction, the first notch 406 is located between the two pitch adjusting seats 401, the first positioning piece 404 is located on the side of the first notch 406 facing the support base 44, and the first positioning piece is fixed on the support base 44 by a first positioning piece. By setting the first notch 406, the adapter plate 43 and the support base 44 can be fixed without increasing the volume of the adapter plate 43, and the first positioning piece 404 and the first positioning piece for fixing are both arranged in the first notch 406, so as not to occupy too much space.

[0067] In some examples, the first positioning piece can include a pin and a screw, and the first positioning piece 404 can be fixed on the support base 44 by a pin positioning combined with a screw fixing.

[0068] In some embodiments, referring to Figure 6 and Figure 7The adapter plate 43 has a first adjusting screw seat 431 and a second adjusting screw seat 432, one side of the first adjusting screw seat 431 and the second adjusting screw seat 432 has a second notch 407 and a corresponding second positioning piece 405, the second positioning piece 405 is located on the side of the second notch 407 facing the support base 44, and the second positioning piece 405 is fixed on the support base 44 by a second positioning member. In this way, the first adjusting screw seat 431 and the second adjusting screw seat 432 are prevented from protruding from the adapter plate 43, thereby avoiding occupying too much space.

[0069] In some examples, the second positioning member can include a pin and a screw, and the second positioning piece 405 can be fixed on the support base 44 by a combination of pin positioning and screw fixing.

[0070] In some embodiments, with reference to Figure 3 The polarization detection assembly 3 further includes a first rotating motor 31 and a rotating wheel 33, the rotating wheel 33 is connected to the first rotating motor 31, and a plurality of optical elements 32 are arranged on the rotating wheel 33 in a spaced manner, the first rotating motor 31 drives the rotating wheel 33 to rotate, so as to switch the optical elements 32 located in the light beam path.

[0071] In some embodiments, the polarization detection assembly 3 further includes a polarization detection base 35 and a connecting part 36, the polarization detection base 35 is arranged on the base 10, and the first rotating motor 31 is connected to the polarization detection base 35 through the connecting part 36.

[0072] In some embodiments, the polarization detection assembly 3 further includes a second rotating motor 34, the plurality of optical elements 32 include at least one polarizing optical element, the polarizing optical element is installed on the rotating wheel 33 by the second rotating motor 34, and the second rotating motor 34 can drive the polarizing optical element to rotate along the axial direction of the polarizing optical element. In some examples, the polarizing optical element can be adjusted to rotate by 360 degrees along the axial direction of the polarizing optical element.

[0073] In some embodiments, with reference to Figure 15 and Figure 16 The plurality of optical elements 32 include a first optical element 321 and a second optical element 322, the number of the first optical elements 321 can be multiple, and the number of the second optical element 322 can be one, the second optical element 322 is a polarizing optical element, and the first optical element 321 can be a window piece, a filter piece, or an attenuation piece, etc. In some examples, the number of the optical elements 32 is five, including four first optical elements 321 and one second optical element 322, two first optical elements 321 are arranged on each side of the second optical element 322, and the second optical element 322 is installed on the rotating wheel 33 by the second rotating motor 34.

[0074] The rotatable polarizing optical element is arranged on the rotating wheel 33, and the advantage is that the transmission direction can be changed by rotating the polarizing optical element, so that different transmission directions can be selected in different scenes, and light with different polarization directions can be transmitted through the polarizing optical element, thereby avoiding the arrangement of multiple polarizing optical elements with different transmission directions, and facilitating the reduction of the arrangement space of the optical element 32.

[0075] In some embodiments, the rotating wheel 33 has a plurality of first mounting holes 324 and one second mounting hole 323, the first optical element 321 is opposite to the first mounting hole 324, and the first optical element 321 is arranged on the side of the rotating wheel 33 facing the objective lens 1; the second rotating motor 34 is opposite to the second mounting hole 323, and the second rotating motor 34 is arranged on the side of the rotating wheel 33 facing the camera 2, and the second rotating motor 34 extends from the second mounting hole 323 to the side of the rotating wheel 33 facing the objective lens 1, so that the second optical element 322 is arranged coplanar with the plurality of first optical elements 321, wherein the aperture of the second mounting hole 323 is larger than the aperture of the first mounting hole 324. In some examples, the first mounting hole 324 is circular, and the second mounting hole 323 is irregularly shaped. It should be noted that the shape of the second mounting hole 323 is not limited in the embodiments of the present application, as long as part of the second rotating motor 34 can extend from the second mounting hole 323 to the side of the rotating wheel 33 facing the objective lens 1, and the second optical element 322 is arranged coplanar with the plurality of first optical elements 321.

[0076] In some embodiments, referring to Figure 10 The camera base includes a base body 201 and a camera adjusting assembly. The base body 201 is arranged on the base 10, and the camera 2 is arranged on the base body 201 by the camera adjusting assembly. The camera adjusting assembly can drive the camera 2 to move, so that the camera 2 can be adjusted in position along the optical axis AA1, rotated along the optical axis AA1, adjusted in position in a plane perpendicular to the optical axis AA1, and adjusted in a yaw angle relative to the optical axis AA1.

[0077] In some embodiments, referring to Figure 11 and Figure 12, the camera adjusting assembly comprises a camera support 205 and a first adjusting plate 206, the camera 2 is arranged on the camera support 205, the camera support 205 is arranged on the first adjusting plate 206, one side of the camera support 205 is provided with a first rotating screw seat 215 and a second rotating screw seat 245 arranged oppositely, the first rotating screw seat 215 is used for assembling a first rotating screw 225, and the second rotating screw seat 245 is used for assembling a second rotating screw 235; the first adjusting plate 206 is provided with a rotating adjusting stop piece 236, and the rotating adjusting stop piece 236 is located between the first rotating screw seat 215 and the second rotating screw seat 245; wherein the opposite sides of the rotating adjusting stop piece 236 are in contact with the free ends of the first rotating screw 225 and the second rotating screw 235 respectively, the first rotating screw 225 is rotated, the second rotating screw 235 is correspondingly rotated, the camera support 205 is rotated along the optical axis AA1 relative to the first adjusting plate 206, and the camera 2 is rotated along the optical axis AA1. Wherein the rotating adjusting stop piece 236, the first rotating screw 225 and the second rotating screw 235 constitute a pair of top structures.

[0078] In some embodiments, with reference to Figure 12 , one side of the first adjusting plate 206 towards the camera support 205 is provided with a rotating rotation axis, and one side of the camera support 205 towards the first adjusting plate 206 is provided with a rotation axis groove matched with the rotating rotation axis, so as to facilitate the rotation of the first adjusting plate 206 relative to the camera support 205.

[0079] In some embodiments, with reference to Figure 11 and Figure 12 , the camera adjusting assembly further comprises a second adjusting plate 207, the first adjusting plate 206 is arranged on the second adjusting plate 207, one side of the first adjusting plate 206 is provided with a yaw adjusting screw seat 216, the yaw adjusting screw seat 216 is provided with the rotating adjusting stop piece 236, and the yaw adjusting screw seat 216 is used for assembling a yaw adjusting screw 226, the free end of the yaw adjusting screw 226 abuts against the second adjusting plate 207, the yaw adjusting screw 226 is rotated, the first adjusting plate 206 is inclined relative to the second adjusting plate 207, and the yaw angle adjustment of the camera 2 is realized.

[0080] In some embodiments, with reference to Figure 10 and Figure 13 , the camera adjusting assembly further comprises a moving motor 204 and a motor support 203, opposite sides of the moving motor 204 are connected with the camera support 205 and the motor support 203 respectively, the moving motor 204 is used for driving the camera support 205 to move along the direction of the optical axis AA1 relative to the motor support 203, so as to realize the position adjustment of the camera 2 along the direction of the optical axis AA1.

[0081] In some embodiments, with reference to Figure 13 and Figure 14The camera adjusting assembly further comprises a third adjusting plate 202, the motor support 203 is arranged on the third adjusting plate 202, the third adjusting plate 202 is arranged on the base body 201, the third adjusting plate 202 has a short-side adjusting screw seat 282 for assembling a short-side adjusting screw 292, a free end of the short-side adjusting screw 292 is connected with the motor support 203, and the short-side adjusting screw 292 is rotated to move the motor support 203 relative to the third adjusting plate 202 along a first direction C perpendicular to the optical axis AA1.

[0082] In some embodiments, with reference to Figure 13 and Figure 14 The base body 201 has a first long-side adjusting screw seat 212 for assembling a first long-side adjusting screw 222 and a second long-side adjusting screw seat 232 for assembling a second long-side adjusting screw 242, and the first long-side adjusting screw seat 212 and the second long-side adjusting screw seat 232 are located on opposite sides of the third adjusting plate 202, the third adjusting plate 202 has a first abutting portion 262 and a second abutting portion 252, a free end of the first long-side adjusting screw 222 is in contact with the first abutting portion 262, a free end of the second long-side adjusting screw 242 is in contact with the second abutting portion 252, the first long-side adjusting screw 222 is rotated, and the second long-side adjusting screw 242 is correspondingly rotated to move the third adjusting plate 202 relative to the base body 201 along a second direction B perpendicular to the optical axis AA1, and a plane in which the first direction C and the second direction B are located is a plane perpendicular to the optical axis AA1.

[0083] In some embodiments, with reference to Figure 13 and Figure 14 A side of the third adjusting plate 202 away from the motor support 203 has a guide groove extending along the second direction B, a guide shaft 272 is arranged in the guide groove, and two ends of the guide shaft 272 are fixed on the base body 201, so that the guide shaft 272 can play a guiding role when the third adjusting plate 202 moves relative to the base body 201 along the second direction B.

[0084] The optical detection device provided by the embodiment of the present application can realize switching of the required magnification tube into the beam path of the optical detection device by switching the multiple tube lenses behind the objective lens, and can simultaneously select the required optical element from the multiple optical elements and switch the optical element into the beam path of the optical detection device, thereby improving the adaptability of the optical detection device to different working conditions. In addition, the tube lens is provided with a multi-dimensional adjusting mechanism, which can realize multi-dimensional angle adjustment or multi-dimensional position adjustment of the tube lens. The camera is also provided with a multi-dimensional adjusting mechanism, which can realize multi-dimensional angle adjustment or multi-dimensional position adjustment of the camera.

[0085] It should be understood that the various forms of flow shown above can be re-ordered, added to, or have steps deleted, for example. The steps recited in the present disclosure can be performed in parallel, in series, or in a different order, as long as the desired results of the technology recited in the present disclosure are achieved, and are not limited herein.

[0086] The specific embodiments discussed hereinabove are illustrative of various aspects of the present application. Alterations, modifications, combinations, sub-combinations, and the like are intended to be included within the scope of the present application. Accordingly, although specific embodiments have been described herein, these are not intended to limit the scope of the present application, as claimed.

Claims

1. An optical detection device, characterized in that The optical detection device comprises: an objective lens (1), a polarized light detection assembly (3), a tube lens assembly and a camera (2) arranged in sequence along an optical axis; the tube lens assembly comprises a plurality of tube lenses (4) arranged along a direction perpendicular to the optical axis, one of the plurality of tube lenses (4) is arranged in a light beam path between the objective lens (1) and the camera (2), and the tube lens (4) in the light beam path is switchable, the tube lens assembly further comprises a tube lens support (46) and a tube lens switching motor (45), the plurality of tube lenses (4) are arranged on the tube lens support (46), and the tube lens switching motor (45) is used to drive the tube lens support (46) to move along the arrangement direction of the tube lenses (4) so as to switch any tube lens (4) into the light beam path; the polarized light detection assembly (3) comprises a plurality of optical elements (32), one of the plurality of optical elements (32) is arranged in the light beam path, and the optical element (32) in the light beam path is switchable, the polarized light detection assembly (3) further comprises a first rotating motor (31) and a rotating wheel (33), the rotating wheel (33) is connected with the first rotating motor (31), the plurality of optical elements (32) are arranged on the rotating wheel (33) at intervals, and the first rotating motor (31) drives the rotating wheel (33) to rotate so as to switch the optical element (32) in the light beam path.

2. The optical detection device of claim 1, wherein, The optical detection device further comprises a base (10), the objective lens (1), the polarized light detection assembly (3) and the tube lens assembly are arranged on the base (10), and the camera (2) is arranged on the base (10) through a camera base.

3. The optical detection device of claim 1, wherein, The tube lens (4) is arranged on the tube lens support (46) through a first adjusting structure, the first adjusting structure can drive the tube lens (4) to move so as to make the tube lens (4) perform position adjustment along the optical axis direction, pitch angle adjustment relative to the optical axis and yaw angle adjustment relative to the optical axis.

4. The optical detection device of claim 3, wherein, The first adjusting structure comprises a tube lens mounting plate (42) and a mounting support (41), the tube lens mounting plate (42) is arranged on the tube lens support (46), the tube lens (4) is arranged on a side of the tube lens mounting plate (42) away from the tube lens support (46) through the mounting support (41), and the mounting support (41) is movable relative to the tube lens mounting plate (42) along the optical axis direction so as to realize position adjustment of the tube lens (4) relative to the tube lens support (46) along the optical axis direction.

5. The optical detection device of claim 4, wherein, The tube lens mounting plate (42) has oppositely arranged first and second axial screw seats (422) and (424), the first and second axial screw seats (422) and (424) are respectively located on opposite sides of the mounting support (41) in the optical axis direction, a first axial screw (423) is assembled on the first axial screw seat (422), and a second axial screw (425) is assembled on the second axial screw seat (424). The installation support (41) is in contact with the free end of the first axial screw (423) and the free end of the second axial screw (425) on opposite sides in the direction of the optical axis, and rotating the first axial screw (423) and the second axial screw (425) correspondingly to move the installation support (41) along the direction of the optical axis relative to the tube mirror installation plate (42).

6. The optical detection device of claim 4, wherein, The tube mirror support (46) has a support base (44), and the first adjusting structure further comprises an adapter plate (43), and the tube mirror installation plate (42) is arranged on the support base (44) through the adapter plate (43), and the tube mirror installation plate (42) is rotatable relative to the adapter plate (43) in the axial direction of the tube mirror installation plate (42) to adjust the yaw angle of the tube mirror (4) relative to the optical axis.

7. The optical detection device of claim 6, wherein, The adapter plate (43) is adjustable in the inclination angle relative to the support base (44) to adjust the pitch angle of the tube mirror (4) relative to the optical axis. The adapter plate (43) is a rectangular plate, and four corners of the adapter plate (43) are pitch adjusting seats (401), and the pitch adjusting seat (401) is provided with a pitch adjusting screw hole for assembling a pitch adjusting assembly (402). The pitch adjusting assembly (402) comprises a body (4021), a spherical washer (4024) and a pitch screw (4022), the body (4021) is provided with a mounting hole, the pitch screw (4022) is assembled in the mounting hole to connect the body (4021) and the support base (44), the spherical washer (4024) is sleeved on the outer ring of the pitch screw (4022) and located between the body (4021) and the support base (44), the spherical washer (4024) is a semicircular structure protruding towards the body (4021), and one side of the body (4021) towards the spherical washer (4024) is provided with an arc-shaped recess matched with the spherical washer (4024). The outer ring of the body (4021) is provided with a first thread matched with the pitch adjusting screw hole, and the body (4021) is assembled in the pitch adjusting screw hole through the first thread, and the body (4021) is rotated to adjust the inclination angle of the adapter plate (43) relative to the support base (44).

8. The optical detection device of claim 2, wherein, The polarization detection assembly (3) further comprises a polarization detection base (35) and a connecting part (36), the polarization detection base (35) is arranged on the base (10), and the first rotating motor (31) is connected with the polarization detection base (35) through the connecting part (36).

9. The optical detection device of claim 1, wherein, The polarization detection assembly (3) further comprises a second rotating motor (34), a plurality of the optical elements (32) comprise at least one polarization optical element, the polarization optical element is installed on the rotating wheel (33) through the second rotating motor (34), and the second rotating motor (34) can drive the polarization optical element to rotate in the axial direction of the polarization optical element.

10. The optical detection device of claim 2, wherein, The camera base comprises a base body (201) and a camera adjusting assembly, the base body (201) is arranged on the base (10), the camera (2) is arranged on the base body (201) through the camera adjusting assembly, and the camera adjusting assembly can drive the camera (2) to move, so that the camera (2) is adjusted in position along the optical axis direction, rotated along the optical axis, adjusted in position on a plane perpendicular to the optical axis direction and adjusted in a yaw angle relative to the optical axis.

11. The optical detection device of claim 10, wherein, The camera adjusting assembly comprises a camera support (205) and a first adjusting plate (206), the camera (2) is arranged on the camera support (205), the camera support (205) is arranged on the first adjusting plate (206), one side of the camera support (205) is provided with oppositely arranged first and second rotating screw seats (215 and 245), the first rotating screw seat (215) is used for assembling a first rotating screw (225), and the second rotating screw seat (245) is used for assembling a second rotating screw (235). The first adjusting plate (206) is provided with a rotating adjusting flange (236) between the first and second rotating screw seats (215 and 245). Wherein, the opposite sides of the rotating adjusting flange (236) are in contact with the free ends of the first and second rotating screws (225 and 235) respectively, the first rotating screw (225) is rotated, the second rotating screw (235) is correspondingly rotated, the camera support (205) is rotated relative to the first adjusting plate (206) along the optical axis, and the camera (2) is rotated along the optical axis.

12. The optical detection device of claim 11, wherein, The camera adjusting assembly further comprises a second adjusting plate (207), the first adjusting plate (206) is arranged on the second adjusting plate (207), one side of the first adjusting plate (206) is provided with a yaw adjusting screw seat (216), the yaw adjusting screw seat (216) is provided with the rotating adjusting flange (236), the yaw adjusting screw seat (216) is used for assembling a yaw adjusting screw (226), the free end of the yaw adjusting screw (226) abuts against the second adjusting plate (207), the yaw adjusting screw (226) is rotated, the first adjusting plate (206) is inclined relative to the second adjusting plate (207), and the yaw angle adjustment of the camera (2) is realized.

13. The optical detection device of claim 12, wherein, The camera adjusting assembly further comprises a moving motor (204) and a motor support (203), the opposite sides of the moving motor (204) are connected with the camera support (205) and the motor support (203) respectively, and the moving motor (204) is used for driving the camera support (205) to move relative to the motor support (203) along the direction of the optical axis, so as to realize the position adjustment of the camera (2) along the optical axis direction.

14. The optical detection device of claim 13, wherein, The camera adjusting assembly further comprises a third adjusting plate (202), the motor support (203) is arranged on the third adjusting plate (202), the third adjusting plate (202) is arranged on the base body (201), the third adjusting plate (202) has a short-side adjusting screw seat (282) for assembling a short-side adjusting screw (292), a free end of the short-side adjusting screw (292) is connected with the motor support (203), and the short-side adjusting screw (292) is rotated to move the motor support (203) relative to the third adjusting plate (202) along a first direction perpendicular to the optical axis.

15. The optical detection device of claim 14, wherein, The base body (201) has a first long-side adjusting screw seat (212) for assembling a first long-side adjusting screw (222) and a second long-side adjusting screw seat (232) for assembling a second long-side adjusting screw (242), and the first long-side adjusting screw seat (212) and the second long-side adjusting screw seat (232) are located on opposite sides of the third adjusting plate (202); The third adjusting plate (202) has a first abutting portion (262) and a second abutting portion (252), a free end of the first long-side adjusting screw (222) is in contact with the first abutting portion (262), and a free end of the second long-side adjusting screw (242) is in contact with the second abutting portion (252), the first long-side adjusting screw (222) is rotated, and the second long-side adjusting screw (242) is correspondingly rotated, so that the third adjusting plate (202) is moved relative to the base body (201) along a second direction perpendicular to the optical axis, and a plane in which the first direction and the second direction are located is a plane perpendicular to the optical axis.

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