CN217878279U - Optical module and holder measuring system - Google Patents

Abstract

The application discloses an optical module and a holder measuring system, which comprise a mounting plate, a zooming module, a laser module and a first screw; the mounting plate is provided with a first mounting hole, a second mounting hole and a plurality of first through holes, the zooming module is provided with a zooming lens, and the zooming module is fixed on the mounting plate and extends to the first mounting hole; a laser port of the laser module is arranged towards the second mounting hole, and a first sealing ring is abutted between the laser module and the mounting plate; first screw extends in first through-hole and first screw and laser module threaded connection, and the cover is equipped with first spring on the first screw, and first spring butt is between mounting panel and laser module. Only need through not hard up or the first screw of screwing, first spring will extend or shorten, and the laser module takes place the angle change under the elastic force effect of first spring to the projection angle of adjustment laser mouth, the adjustment method of this application is simple and convenient, do benefit to and carry out batch production.

Description

Optical module and holder measuring system

Technical Field

The application relates to the technical field of cloud platforms, especially, relate to an optical module and cloud platform measurement system.

Background

When the optical module is installed on the support, the relative position relation between the optical module and the support needs to be adjusted, mainly the calibration of each optical axis of the optical module, so that when the support is installed on the holder, the optical module can be matched with the structure of the holder, and the holder has better imaging quality.

However, in the prior art, each optical axis of the optical module usually needs to be detached and loosened to perform multiple adjustments, and the adjustment method is particularly complicated and difficult to perform mass production. Therefore, it is desirable to provide an optical module that is easy to adjust.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application provides an optical module and a pan/tilt measurement system to alleviate the problem of tedious optical axis adjustment operation.

In a first aspect, an embodiment of the present application provides an optical module, including a mounting plate, a zoom module, a laser module, and a first screw. The mounting plate is provided with a first mounting hole, a second mounting hole and a plurality of first through holes, the zooming module is provided with a zooming lens, the zooming module is fixed on the mounting plate, and the zooming lens extends to the first mounting hole; the laser module is connected to the mounting plate and provided with a laser port, the laser port is arranged towards the second mounting hole, and a first sealing ring is abutted between the laser module and the mounting plate; first screw extend in first through-hole just first screw with laser module threaded connection, the cover is equipped with first spring on the first screw, first spring butt in the mounting panel with between the laser module.

According to some embodiments of the present application, the optical module further comprises an infrared module and a second screw. The mounting plate is further provided with a third mounting hole and a plurality of second through holes, the infrared module is connected to the mounting plate and provided with an infrared lens, and the infrared lens is arranged towards the third mounting hole; the second screw extends in the second through-hole just the second screw with infrared module threaded connection, the cover is equipped with the second spring on the second screw, second spring butt in the mounting panel with between the infrared module.

According to some embodiments of the application, the optical module further comprises a second sealing ring abutting between the infrared module and the mounting plate.

According to some embodiments of the present application, the zoom module further includes a zoom main body and a zoom bracket, the zoom lens is fixed to the zoom main body, the zoom bracket is fixedly connected to the mounting plate, and the zoom main body is fixed to the zoom bracket.

According to some embodiments of the application, the infrared module still includes infrared main part and infrared support, infrared camera lens is fixed in the infrared main part, infrared support with the mounting panel is connected, the infrared module is fixed in the infrared support.

According to some embodiments of the application, along the axial direction perpendicular to the first through hole, the inner wall of the first through hole is convexly provided with a first limiting table. The first limiting table comprises a first abutting surface and a first limiting surface which are oppositely arranged, the first abutting surface is arranged facing the laser module, and the first limiting surface is arranged away from the laser module; the first spring extends into the first through hole and abuts against the first abutting surface, and a nut of the first screw is arranged in the first through hole and abuts against the first limiting surface.

According to some embodiments of the application, along the axial direction perpendicular to the second through hole, the inner wall of the second through hole is convexly provided with a second limiting table. The second limiting table comprises a second abutting surface and a second limiting surface which are oppositely arranged, the second abutting surface is arranged facing the infrared module, and the second limiting surface is arranged away from the infrared module; the second spring extends into the second through hole and abuts against the second abutting surface, and a nut of the second screw is arranged in the second through hole and abuts against the second limiting surface.

According to some embodiments of this application, optical module still includes wide-angle lens, the fourth mounting hole has still been seted up to the mounting panel, wide-angle lens set up in the fourth mounting hole just wide-angle lens with mounting panel fixed connection.

According to some embodiments of the present application, in a second aspect, the present application further provides a pan-tilt measuring system including the optical module according to the above embodiments.

According to some embodiments of the present application, the pan/tilt head measurement system further comprises a calibration plate on which a zoom center, a laser center, and an infrared center are disposed. The calibration plate is arranged towards the optical module, the zooming center corresponds to the center of the first mounting hole, the laser center corresponds to the center of the second mounting hole, and the infrared center corresponds to the center of the third mounting hole.

The application of optical module and cloud platform measurement system has following beneficial effect for prior art:

by arranging the first spring on the first screw, when the projection angle of the laser module needs to be adjusted, the first spring abutting between the mounting plate and the laser module can be extended or shortened only by loosening or screwing the first screw, the laser module is subjected to angle change under the action of the elastic force of the first spring so as to adjust the projection angle of the laser port, and the projection angle of the laser module and the projection angle of the zooming module can be parallel in such a reciprocating way, so that more accurate distance measurement and speed measurement of the optical module can be realized; in addition, the first flexible sealing ring is abutted between the laser module and the mounting plate, the first sealing ring plays a role in buffering, angle change of the laser module can be well contained, so that the laser module is prevented from directly interfering with the mounting plate, and the laser module is protected. The adjusting method is simple and convenient, and is beneficial to batch production.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 is a schematic diagram of an optical module according to some embodiments of the present disclosure;

FIG. 2 is a schematic structural view of a mounting plate according to some embodiments of the present application;

FIG. 3 is a schematic structural diagram of a zoom module according to some embodiments of the present application;

FIG. 4 is a schematic structural diagram of a laser module according to some embodiments of the present application;

FIG. 5 is an exploded view of an optical module according to some embodiments of the present application;

FIG. 6 is a schematic structural diagram of an infrared module according to some embodiments of the present application

FIG. 7a is a schematic structural view of a mounting plate according to some embodiments of the present application;

FIG. 7b is a schematic structural view of a mounting plate of some embodiments of the present application;

FIG. 7c is a partial enlarged view A of FIG. 7 a;

FIG. 7d is a partial enlarged view B of FIG. 7B;

FIG. 7e is a partial enlarged view C of FIG. 7 a;

FIG. 7f is an enlarged partial view D of FIG. 7 b;

FIG. 8 is a schematic diagram of a calibration plate according to some embodiments of the present application.

The reference numbers in the detailed description are as follows:

100. an optical module;

10. mounting a plate; 11. a first mounting hole; 12. a second mounting hole; 13. a first through hole; 131. a first limit table; 1311. a first butting surface; 1312. a first limit surface; 14. a first mounting surface; 15. a second mounting surface; 16. a third mounting hole; 17. a second through hole; 171. a second limit table; 1711. a second butting surface; 1712. a second limiting surface; 18. a fourth mounting hole;

20. a zoom module; 21. a zoom main body; 22. a zoom lens; 23. a zoom bracket;

30. a laser module; 31. a laser body; 32. a laser port; 33. a first threaded hole;

40. a first screw; 41. a first spring;

50. a first seal ring;

60. an infrared module; 61. an infrared body; 62. an infrared lens; 63. a second threaded hole; 64. an infrared bracket;

70. a second screw; 71. a second spring;

80. a second seal ring;

90. a wide-angle lens;

200. a calibration plate;

210. a zoom center; 220. a laser center; 230. an infrared center.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

During production of the holder, an optical module needs to be installed. The optical module is usually installed on the holder through a support, and when the optical module is installed on the support, the relative position relation between the optical module and the support needs to be adjusted, mainly the calibration of each optical axis of the optical module, so that when the support is installed on the holder, the optical module can be matched with the structure of the holder, and the holder has better imaging quality. However, in the prior art, each optical axis of the optical module generally needs to be detached and loosened to perform multiple adjustments, and the adjustment method is particularly tedious and difficult to perform mass production.

To alleviate the above problem, in a first aspect, an embodiment of the present application provides an optical module 100, as shown in fig. 1, where the optical module 100 includes a mounting plate 10, a zoom module 20, a laser module 30, and a first screw 40.

As shown in fig. 2, the mounting plate 10 is provided with a first mounting hole 11, a second mounting hole 12 and a plurality of first through holes 13. The first mounting holes 11 and the second mounting holes 12 are arranged at intervals, the plurality of second through holes 17 are annularly arranged around the second mounting holes 12, specifically, the number of the second through holes 17 is four, and the four second through holes 17 are annularly arranged around the second mounting holes 12. The mounting plate 10 includes a first mounting surface 14 and a second mounting surface 15, which are oppositely disposed, the first mounting surface 14 can be used for mounting the zoom module 20 and the laser module 30, etc., and the second mounting surface 15 can be a relatively flat end surface.

For the above-mentioned zoom module 20, as shown in fig. 3, the zoom module 20 includes a zoom body 21 and a zoom lens 22, and the zoom lens 22 is disposed at one end of the zoom body 21. The zoom body 21 is fixed on the first surface of the mounting plate 10, and the zoom lens 22 extends into the first mounting hole 11 of the mounting plate 10, in other embodiments, the zoom lens 22 may also be disposed toward the first mounting hole 11 or extend out of the first mounting hole 11.

For the laser module 30, as shown in fig. 4, the laser module 30 includes a laser main body 31 and a laser port 32, the laser port 32 is fixed at one end of the laser main body 31, the laser main body 31 is fixed at the first mounting surface 14 of the mounting plate 10, and the laser port 32 is disposed toward the second mounting hole 12, in other embodiments, the laser port 32 may also extend into the second mounting hole 12, or the laser port 32 extends outside the second mounting hole 12. In order to ensure the stable structure, the laser module 30 generally needs to be locked on the mounting plate 10, and the laser module 30 is easily scratched or even damaged due to the large locking force, so in this embodiment, as shown in fig. 5, a first sealing ring 50 is further abutted between the laser module 30 and the mounting plate 10, and the first sealing ring 50 can play a role in buffering to protect the laser module 30.

Referring to fig. 1, 4 and 5 together for the first screw 40, the laser module 30 is provided with a plurality of first threaded holes 33, and the first threaded holes 33 correspond to the first through holes 13 one to one. The first screw 40 extends into the first through hole 13 and the first screw 40 is threadedly connected with the laser module 30 through the first threaded hole 33. The first spring 41 is sleeved on the first screw 40, the first spring 41 abuts between the mounting plate 10 and the laser module 30, and the first spring 41 provides elastic force for the mounting plate 10 and the laser module 30.

In this embodiment, through set up first spring 41 on first screw 40, when the projection angle of laser module 30 needs to be adjusted, only need through not hard up or the first screw 40 of screwing, the first spring 41 of butt between mounting panel 10 and laser module 30 will extend or shorten, laser module 30 takes place the angular variation under the elastic force effect of first spring 41, with the projection angle of adjustment laser mouth 32, so reciprocal, can make the projection angle of laser module 30 and the projection angle of zooming module 20 parallel, with the more accurate range finding of realization optical module 100 and test the speed, the adjustment method of this application is simple and convenient, do benefit to and carry out batch production.

In addition, the laser module 30 and the mounting plate 10 are generally rigid components, when the first spring 41 is completely compressed, the laser module 30 abuts against the mounting plate 10, when the laser module 30 adjusts the angle, the mounting plate 10 is difficult to accommodate the angle change of the laser module 30, and the laser module 30 is easy to interfere with the mounting plate 10, which may cause the angle of the laser module 30 to be difficult to adjust, and even cause the laser module 30 to be scratched and damaged; therefore, in the present embodiment, the first sealing ring 50 is abutted between the laser module 30 and the mounting plate 10, and the first sealing ring 50 plays a role of buffering, can well accommodate the angle change of the laser module 30, and can protect the laser module 30.

According to some embodiments of the present application, as shown in fig. 1, optical module 100 further includes an infrared module 60 and a second screw 70.

For the infrared module 60, as shown in fig. 2, the mounting plate 10 is further provided with a third mounting hole 16 and a plurality of second through holes 17; specifically, the number of the second through holes 17 is four, and the four second through holes 17 are annularly arranged around the third mounting hole 16. The infrared module 60 is connected to the mounting plate 10, as shown in fig. 6, the infrared module 60 includes an infrared body 61 and an infrared lens 62, the infrared lens 62 is fixed to one end of the infrared body 61, the infrared body 61 is connected to the first surface of the mounting plate 10, the infrared lens 62 is disposed toward the third mounting hole 16, and the infrared lens 62 may also extend into the third mounting hole 16.

Referring to fig. 1, 5 and 6 together, the infrared module 60 is provided with a plurality of second threaded holes 63, and the second threaded holes 63 correspond to the second through holes 17 one by one. The second screw 70 extends within the second through hole 17 and the second screw 70 is threadedly connected to the laser module 30 through the second threaded hole 63. The second screw 70 is further sleeved with a second spring 71, the second spring 71 abuts between the mounting plate 10 and the infrared module 60, and the second spring 71 provides elastic force to the mounting plate 10 and the laser module 30.

Through set up second spring 71 on second screw 70, when the projection angle of infrared module 60 needs to be adjusted, only need through not hard up or the second screw 70 of screwing, the second spring 71 of butt between mounting panel 10 and infrared module 60 will extend or shorten, infrared module 60 takes place the angular variation under the elastic force effect of second spring 71, with the projection angle of adjustment infrared lens 62, so reciprocal, can make the projection angle of infrared module 60 and zoom module 20 and laser module 30's projection angle parallel, with the more accurate range finding of realization optical module 100 and test the speed.

According to some embodiments of the present application, as shown in fig. 5, the optical module 100 further includes a second sealing ring 80, and the second sealing ring 80 abuts between the infrared module 60 and the mounting board 10.

It can be understood that the infrared module 60 is also a rigid component, the infrared module 60 abuts against the mounting plate 10, the mounting plate 10 is difficult to accommodate the angle change of the infrared module 60, and the infrared module 60 is easy to interfere with the mounting plate 10; therefore, in the present embodiment, by abutting a flexible second seal ring 80 between the infrared module 60 and the mounting plate 10, the second seal ring 80 plays a role of buffering, and can well accommodate the angle change of the infrared module 60.

According to some embodiments of the present application, as shown in fig. 3, the zoom module 20 further includes a zoom bracket 23, the zoom lens 22 is fixed to the zoom main body 21, the zoom bracket 23 is fixedly connected to the mounting plate 10, and the zoom main body 21 is fixed to the zoom bracket 23.

When the optical module 100 is used, the optical module inevitably suffers from the problems of collision, falling and the like, so that the relative position of each optical axis of the optical module 100 is easily deviated, and the measurement accuracy of the optical module 100 is reduced. Therefore, in this embodiment, by providing one zoom bracket 23, the zoom module 20 can be supported and limited well, so as to alleviate the position deviation of the zoom module 20.

According to some embodiments of the present application, as shown in fig. 6, the infrared module 60 further includes an infrared bracket 64, the infrared lens 62 is fixed to the infrared body 61, the infrared bracket 64 is connected to the mounting plate 10, and the infrared module 60 is fixed to the infrared bracket 64. In this embodiment, by providing one infrared bracket 64, the infrared module 60 can be supported and limited well, so as to alleviate the position deviation of the infrared module 60. The second screw hole 63 may be provided in the infrared holder 64 or in the infrared body 61.

According to some embodiments of the present application, referring to fig. 7a to 7f, a first limiting block 131 is protruded from an inner wall of the first through hole 13 along an axial direction perpendicular to the first through hole 13. The first position-limiting platform 131 includes a first abutting surface 1311 and a first position-limiting surface 1312, which are disposed oppositely, the first abutting surface 1311 faces the laser module 30, and the first position-limiting surface 1312 faces away from the laser module 30. The first spring 41 extends into the first through hole 13 and abuts against the first abutting surface 1311, and the nut of the first screw 40 is disposed in the first through hole 13 and abuts against the first limiting surface 1312.

The first spring 41 extends into the first through hole 13, and the inner wall of the first through hole 13 and the first supporting surface 1311 can limit the first spring 41, so that the first spring 41 can extend and retract along the axial direction of the first spring. The nuts of the first screws 40 are also disposed in the first through holes 13 to prevent the nuts of the first screws 40 from protruding beyond the second mounting surface 15 of the mounting plate 10.

Based on the same concept, according to some embodiments of the present application, please refer to fig. 7a to fig. 7f together, the second limiting platform 171 is protruded from the inner wall of the second through hole 17 along the axial direction perpendicular to the second through hole 17. The second limiting table 171 includes a second supporting surface 1711 and a second limiting surface 1712, which are disposed opposite to each other, wherein the second supporting surface 1711 faces the infrared module 60, and the second limiting surface 1712 faces away from the infrared module 60. The second spring 71 extends into the second through hole 17 and abuts against the second abutting surface 1711, and the nut of the second screw 70 is disposed in the second through hole 17 and abuts against the second limiting surface 1712.

The second spring 71 extends into the second through hole 17, and the inner wall of the second through hole 17 and the second abutting surface 1711 can limit the second spring 71, so that the second spring 71 can extend and retract along the axial direction of the second spring. The nut of the second screw 70 is also disposed in the second through hole 17 to prevent the nut of the second screw 70 from protruding out of the second mounting surface 15 of the mounting plate 10.

According to some embodiments of the present disclosure, as shown in fig. 1, the optical module 100 further includes a wide-angle lens 90, the mounting plate 10 further has a fourth mounting hole 18, the wide-angle lens 90 is disposed in the fourth mounting hole 18, and the wide-angle lens 90 is fixedly connected to the mounting plate 10. The wide-angle lens 90 is a photographing lens having a focal length shorter than that of a standard lens, a viewing angle larger than that of the standard lens, a focal length longer than that of a fisheye lens, and a viewing angle smaller than that of the fisheye lens. The wide-angle digital camera has a short focal length and a wide angle of view, and is suitable for taking pictures of large scenes, such as subjects of buildings, landscapes and the like.

According to some embodiments of the present application, in a second aspect, the present application also provides a pan/tilt head measurement system, including the optical module 100 according to the above embodiments.

In some embodiments, as shown in fig. 8, the pan-tilt measuring system further includes a calibration plate 200, and the calibration plate 200 is provided with a zoom center 210, a laser center 220, and an infrared center 230. The calibration plate 200 is disposed facing the optical module 100, and the zoom center 210 corresponds to the center of the first mounting hole 11, the laser center 220 corresponds to the center of the second mounting hole 12, and the infrared center 230 corresponds to the center of the third mounting hole 16.

In this embodiment, a calibration board 200 may be prepared in advance, and the calibration board 200 has the optical center positions of the zoom lens 22, the infrared lens 62 and the laser port 32 (i.e. the zoom center 210, the laser center 220 and the infrared center 230), and the distances between the three (210, 220, 230) and the centers of the three mounting holes (11, 12, 16) on the actual mounting board 10 are the same. During testing, the calibration board 200 is placed at a position 100 m away from the optical module, the projection center of the zoom lens 22 is aligned to the zoom center 210 on the calibration board 200, and the first screw 40 and the second screw 70 are adjusted with the reference, and the laser center 220 and the infrared center 230 of the laser port 32 and the projection center of the infrared lens 62 falling on the calibration board 200 respectively are observed, which indicates that the optical centers of the three are parallel, in this embodiment, the distance of ten m can make the parallelism accuracy reach 0.1 degree, the measurement accuracy of the pan-tilt can be obviously improved, and more accurate distance measurement and speed measurement can be realized.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (10)

1. An optical module, comprising:

the mounting plate is provided with a first mounting hole, a second mounting hole and a plurality of first through holes;

the zooming module is provided with a zooming lens, the zooming module is fixed on the mounting plate, and the zooming lens extends to the first mounting hole;

the laser module is connected to the mounting plate and provided with a laser port, the laser port is arranged towards the second mounting hole, and a first sealing ring is abutted between the laser module and the mounting plate;

first screw, extend in first through-hole just first screw with laser module threaded connection, the cover is equipped with first spring on the first screw, first spring butt in the mounting panel with between the laser module.

2. The optical module of claim 1 further comprising an infrared module and a second screw;

the mounting plate is also provided with a third mounting hole and a plurality of second through holes;

the infrared module is connected to the mounting plate and provided with an infrared lens, and the infrared lens faces the third mounting hole;

the second screw extends in the second through-hole just the second screw with infrared module threaded connection, the cover is equipped with the second spring on the second screw, second spring butt in the mounting panel with between the infrared module.

3. The optical module of claim 2 further comprising a second sealing ring abutting between the infrared module and the mounting board.

4. The optical module of claim 2, wherein the zoom module further comprises a zoom body and a zoom bracket, the zoom lens is fixed to the zoom body, the zoom bracket is fixedly connected to the mounting plate, and the zoom body is fixed to the zoom bracket.

5. The optical module of claim 2, wherein the infrared module further comprises an infrared body and an infrared mount, the infrared lens is fixed to the infrared body, the infrared mount is connected to the mounting plate, and the infrared module is fixed to the infrared mount.

6. The optical module according to any one of claims 2 to 5, wherein a first limiting platform is convexly arranged on the inner wall of the first through hole along an axial direction perpendicular to the first through hole;

the first limiting table comprises a first abutting surface and a first limiting surface which are oppositely arranged, the first abutting surface is arranged facing the laser module, and the first limiting surface is arranged away from the laser module;

the first spring extends into the first through hole and abuts against the first abutting surface, and a nut of the first screw is arranged in the first through hole and abuts against the first limiting surface.

7. The optical module according to claim 6, wherein a second stop is protruded from an inner wall of the second through hole along an axial direction perpendicular to the second through hole;

the second limiting table comprises a second abutting surface and a second limiting surface which are oppositely arranged, the second abutting surface is arranged facing the infrared module, and the second limiting surface is arranged away from the infrared module;

the second spring extends into the second through hole and abuts against the second abutting surface, and a nut of the second screw is arranged in the second through hole and abuts against the second limiting surface.

8. The optical module of any of claims 2-5 further comprising a wide angle lens;

a fourth mounting hole has still been seted up to the mounting panel, wide-angle lens set up in the fourth mounting hole just wide-angle lens with mounting panel fixed connection.

9. A pan-tilt measuring system, characterized in that it comprises an optical module according to any one of claims 2 to 8.

10. A pan and tilt head measurement system according to claim 9, further comprising a calibration plate on which a zoom center, a laser center and an infrared center are provided;

the calibration plate is arranged towards the optical module, the zooming center corresponds to the center of the first mounting hole, the laser center corresponds to the center of the second mounting hole, and the infrared center corresponds to the center of the third mounting hole.

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