Optical axis corrector for medical magnifying glass

Abstract

The invention provides a medical magnifying glass optical axis calibration instrument, and belongs to the technical field of lens calibration, the medical magnifying glass optical axis calibration instrument comprises a support frame, a fixed seat is arranged at the center of the bottom of the support frame, a deflection assembly, a transverse moving assembly and a longitudinal moving assembly are arranged at the bottom end of the fixed seat, and a laser transmitter is arranged right above the fixed seat. An optical sensor is arranged on the left side of the laser transmitter, the laser transmitter and the optical sensor are both fixedly installed at the top end of the supporting frame, a controller is fixedly installed on the right side wall of the supporting frame, and a central control system is arranged in the controller; the transverse moving assembly is installed above the longitudinal moving assembly, the deflection assembly is installed above the transverse moving assembly, and the fixing base is installed above the deflection assembly. According to the invention, the problem of high-precision and automatic calibration of the optical axis of the medical magnifier in multiple dimensions is solved, and stable and convenient real-time adjustment is realized.

Description

Technical Field

[0001] The invention relates to the technical field of lens correction equipment, in particular to an optical axis corrector for a medical magnifying glass. Background Art

[0002] During medical examinations and surgeries, medical magnifiers are widely used to magnify small target areas to help medical staff observe details. However, in actual use, medical magnifiers may cause optical axis deviation due to multiple adjustments or changes in the operating environment, thus affecting the observation effect. Traditional medical magnifiers usually rely on manual adjustment or fixed brackets to correct the optical axis, but this method has defects such as cumbersome operation and difficulty in ensuring adjustment accuracy. Especially after long-term use, the problem of optical axis deviation becomes more obvious, which brings inconvenience to medical staff's diagnosis and operation.

[0003] In the prior art, some optical devices use electronic or mechanical adjustment mechanisms to improve the stability of the optical axis, but these devices are usually complex in structure and large in size, making it difficult to adapt to the application requirements of portable medical magnifiers. In addition, traditional correction instruments are mostly general-purpose and lack special designs for medical magnifiers, resulting in insufficient correction accuracy and unable to meet the high requirements of surgery and precision inspection. Therefore, there is an urgent need for an optical axis corrector designed specifically for medical magnifiers to achieve convenient and accurate optical axis adjustment and ensure efficient application in medical scenarios. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is to achieve high-precision, automated calibration of the optical axis of a portable medical magnifier to ensure its stability and accuracy in long-term use and in a variety of environments.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a medical magnifying glass optical axis corrector, comprising a support frame, a fixed seat is arranged at the center of the bottom of the support frame, a deflection assembly, a lateral movement assembly and a longitudinal movement assembly are arranged at the bottom of the fixed seat, a laser emitter is arranged just above the fixed seat, an optical sensor is arranged on the left side of the laser emitter, and the laser emitter and the optical sensor are both fixedly installed on the top of the support frame, a controller is fixedly installed on the right side wall of the support frame, and a central control system is arranged inside the controller;

[0008] The transverse moving assembly is installed above the longitudinal moving assembly, the deflection assembly is installed above the transverse moving assembly, and the fixing seat is installed above the deflection assembly.

[0009] As a preferred solution of the medical magnifying glass optical axis corrector described in the present invention, a longitudinal moving groove is opened at the center of the bottom of the support frame, and the longitudinal moving assembly includes a longitudinal moving plate slidably connected in the longitudinal moving groove, a first electric cylinder is arranged at the front end of the longitudinal moving plate, and the first electric cylinder is fixedly installed on the front side of the bottom of the support frame, a first telescopic rod is movably connected inside the first electric cylinder, and the rear end of the first telescopic rod is fixedly connected to the front wall of the longitudinal moving plate.

[0010] As a preferred solution of the medical magnifying glass optical axis corrector described in the present invention, the lateral moving component includes baffles fixedly installed on the front and rear sides of the top of the longitudinal moving plate, a lateral moving groove is arranged between the two baffles, a lateral moving plate is slidably connected in the lateral moving groove, a second electric cylinder is arranged at the left end of the lateral moving plate, and the second electric cylinder is fixedly installed at the top of the longitudinal moving plate, a second telescopic rod is movably connected inside the second electric cylinder, and the right end of the second telescopic rod is fixedly connected to the left side wall of the lateral moving plate.

[0011] As a preferred solution of the medical magnifying glass optical axis corrector described in the present invention, the deflection assembly includes a fixed table fixedly mounted on the top of the transverse moving plate, a rotating platform is rotatably connected to the center of the fixed table, a stepper motor is fixedly mounted on the rear end of the fixed table through a mounting seat, an output end of the stepper motor is connected to a rotating shaft through a coupling transmission, and a front end of the rotating shaft passes through the rear side wall of the fixed table and extends to the interior of the fixed table and is fixedly connected to the rear side wall of the rotating platform.

[0012] As a preferred solution of the medical magnifying glass optical axis corrector of the present invention, the fixing seat is fixedly installed at the center of the top of the rotating platform.

[0013] As a preferred solution of the medical magnifying glass optical axis corrector described in the present invention, the central control system includes a data processing module, a signal receiving module, a control signal sending module and a feedback analysis module, and the data processing module is used to receive and process feedback data from the optical sensor and laser transmitter.

[0014] As a preferred solution of the medical magnifying glass optical axis corrector of the present invention, the signal receiving module is respectively connected to the optical sensor and the laser transmitter for receiving the optical axis offset data and the optical axis reference signal in real time.

[0015] As a preferred solution of the medical magnifying glass optical axis corrector of the present invention, the control signal sending module is respectively connected to the first electric cylinder, the second electric cylinder and the stepping motor for sending correction instructions.

[0016] As a preferred solution of the medical magnifying glass optical axis corrector described in the present invention, the feedback analysis module is electrically connected to the data processing module through a wire, and is used to analyze the optical axis correction state in real time. When the correction reaches a preset value, a locking instruction is sent to the control signal sending module to maintain the position of the fixed seat in the calibration state.

[0017] As a preferred solution of the medical magnifying glass optical axis corrector described in the present invention, the central control system is connected to the laser emitter and the optical sensor in a two-way communication manner to continuously detect the optical axis offset through a feedback analysis module, and adjust the frequency and amplitude of the calibration instructions according to the detection results.

[0018] Beneficial effects of the present invention:

[0019] 1. Through the coordinated work of the data processing module, signal receiving module and feedback analysis module of the central control system, the present invention can efficiently detect and process the offset information of the optical axis, automatically send correction instructions, and ensure the precise alignment of the optical axis. This real-time feedback and intelligent adjustment design enables the equipment to meet the precise observation needs in medical scenarios and improves the efficiency and accuracy of calibration.

[0020] 2. The present invention adopts a combined structure of lateral and longitudinal moving components and deflection components, supports multi-directional automatic adjustment of the optical axis, and modularly designed controllers, sensors, laser transmitters and other components make the device compact and small in size, convenient for portable use in environments such as operating rooms. In addition, through two-way communication, the central control system can monitor the optical axis status in real time, dynamically adjust the calibration parameters according to feedback information, and ensure calibration stability in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1It is a three-dimensional diagram of the overall structure of the present invention;

[0023] Figure 2 A top sectional view of the present invention;

[0024] Figure 3 is a side sectional view of the present invention;

[0025] Figure 4 It is a control principle block diagram of the central control system of the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 to Figure 3 , is the first embodiment of the present invention, which provides a medical magnifying glass optical axis corrector, including: a support frame 1, a fixed seat 2 is arranged at the center of the bottom of the support frame 1, and the bottom end of the fixed seat 2 is sequentially installed with a longitudinal moving component 5, a lateral moving component 4 and a deflection component 3 to realize a multi-directional adjustment function; a laser emitter 6 is arranged just above the fixed seat 2, and an optical sensor 7 is installed on the left side of the laser emitter 6, both of which are fixed on the top of the support frame 1 for setting and real-time monitoring of the optical axis reference; a controller 8 is fixedly installed on the right side wall of the support frame 1, and a central control system 801 is arranged inside the controller 8 for receiving and processing optical axis offset signals and sending correction instructions to realize automatic calibration of the optical axis.

[0031] Specifically, the lateral moving assembly 4 is installed above the longitudinal moving assembly 5, and is used to achieve the lateral position adjustment of the optical axis of the magnifying glass, so as to accurately calibrate the optical axis in the left and right directions. The longitudinal moving assembly 5 is located at the bottom of the support frame 1, and slides through the longitudinal moving plate 501 to adjust the front and rear position of the optical axis. The deflection assembly 3 is installed above the lateral moving assembly 4, and the angle adjustment of the optical axis is achieved by controlling the rotating platform to ensure that the optical axis can be accurately aligned in different directions. Such an arrangement can achieve multi-dimensional adjustment of the optical axis, making the correction process more flexible and comprehensive.

[0032] By setting the above positional relationship, the order of the lateral moving component, the longitudinal moving component and the deflection component is arranged, so that the fixed seat 2 can be flexibly adjusted in multiple directions, providing a more accurate optical axis alignment effect. This setting can not only achieve high-precision multi-axis calibration, but also reduce the tediousness of manual adjustment through the drive of the electric cylinder, so that the correction instrument can automatically align the optical axis, meeting the requirements of convenience and accuracy in medical scenarios.

[0033] Furthermore, a longitudinal moving groove 101 is provided at the center of the bottom of the support frame 1 so that the longitudinal moving plate 501 can slide in the groove to ensure the stability and accuracy of the longitudinal movement. The longitudinal moving assembly 5 includes a longitudinal moving plate 501 slidably connected in the longitudinal moving groove 101, and a first electric cylinder 502 is provided at the front end thereof. The first electric cylinder 502 is fixed to the front side of the bottom of the support frame 1 and is fixedly connected to the front wall of the longitudinal moving plate 501 through a first telescopic rod 503. The first electric cylinder 502 is used to drive the first telescopic rod 503 to move the longitudinal moving plate 501 forward and backward along the longitudinal moving groove 101 to achieve longitudinal calibration of the optical axis.

[0034] Furthermore, the transverse moving assembly 4 includes baffles 401 fixedly mounted on the front and rear sides of the top of the longitudinal moving plate 501, and the baffles 401 provide boundary restrictions for the transverse moving groove 402 to ensure the stability and accuracy of the transverse movement. A transverse moving plate 403 is slidably connected in the transverse moving groove 402 to achieve the fine-tuning function of the optical axis in the horizontal direction. A second electric cylinder 404 (model: SMC-MXH10) is provided at the left end of the transverse moving plate 403, which is fixedly mounted on the top of the longitudinal moving plate 501 and is internally connected to a second telescopic rod 405. The right end of the second telescopic rod 405 is fixedly connected to the left side wall of the transverse moving plate 403, and the transverse calibration of the optical axis is achieved through telescopic operation to ensure the flexible adjustment of the magnifying glass in the horizontal direction.

[0035] Furthermore, the deflection assembly 3 is mounted on the top of the transverse moving plate 403 to achieve precise adjustment of the optical axis angle. The assembly includes a fixed platform 301, which is fixedly mounted on the top of the transverse moving plate 403. The center of the fixed platform 301 is rotatably connected to a rotating platform 302, which provides the ability to rotate around the axis so that the optical axis can fine-tune the angle to align with the target. The rear end of the fixed platform 301 is fixedly mounted with a stepper motor 304 (model: NEMA-17) through a mounting seat 303. The output end of the stepper motor 304 is connected to a rotating shaft 305 through a coupling. The front end of the rotating shaft 305 penetrates the rear side wall of the fixed platform 301 and extends to the inside, and is fixedly connected to the rear side wall of the rotating platform 302. The rotation adjustment of the platform is achieved through the precise control of the stepper motor 304, thereby achieving precise angle calibration of the optical axis.

[0036] The fixed seat 2 is located at the top center of the rotating platform 302 and is fixedly mounted on the rotating platform to support and stabilize the entire optical axis calibration system. Such a structural layout enables the fixed seat to achieve multi-dimensional movement and rotation adjustment in the longitudinal, lateral and angular directions. The longitudinal and lateral movement components are driven by the first electric cylinder 502 (model: SMC-CJ2B16) and the second electric cylinder 404, respectively, to provide stable telescopic functions, thereby achieving precise optical axis position control. The stepper motor in the deflection assembly ensures high precision of angle adjustment. This setting combination not only improves the accuracy of optical axis correction, but also greatly reduces the tediousness of manual operation, realizes automatic alignment of the optical axis, and meets the needs of fast, accurate and convenient optical axis calibration in medical scenarios.

[0037] In summary, the optical axis corrector of the medical magnifying glass of the present invention realizes high-precision automatic calibration of the optical axis through a rationally structured multi-dimensional moving and adjusting component, combined with precise electric cylinders and stepper motor drives. The longitudinal moving component, the lateral moving component and the deflection component cooperate with each other, so that the optical axis of the magnifying glass can be flexibly adjusted in multiple directions to meet different usage requirements. Specifically, the first electric cylinder (SMC-CJ2B16) and the second electric cylinder (SMC-MXH10) provide stable telescopic functions in the longitudinal and lateral directions, respectively, and the stepper motor (NEMA-17) ensures the angle adjustment accuracy of the deflection component, thereby realizing precise positioning and adjustment of the optical axis.

[0038] This design significantly improves the convenience and reliability of the device. It not only reduces the complexity of manual calibration, but also ensures the stability of the optical axis during long-term use and in a variety of environments. The central control system achieves automatic calibration and position locking through real-time monitoring and feedback analysis, further improving the accuracy and durability of the correction effect. The device meets the requirements for high-precision and automated calibration of the optical axis during medical examinations and surgeries. It is suitable for the precise application scenarios of portable medical magnifiers, effectively improving the operating efficiency and observation accuracy of medical staff.

[0039] Example 2

[0040] Reference Figure 1 and Figure 4 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. On the basis of maintaining the multi-dimensional adjustment functions of the longitudinal moving component, the lateral moving component and the deflection component, the structure and connection method of the central control system 801 are further optimized. Each module of the central control system 801 is arranged inside the controller 8, and the modules are electrically connected through wires to ensure the stability of signal transmission; and the control system and the optical sensor 7, the laser transmitter 6, the first electric cylinder 502, the second electric cylinder 404 and the stepper motor 304 are connected wirelessly to meet the distance requirements and simplify the wiring.

[0041] The central control system 801 includes a data processing module 801a, a signal receiving module 801b, a control signal sending module 801c and a feedback analysis module 801d, and each module is connected by wires inside the controller 8. The signal receiving module 801b is paired with the optical sensor 7 and the laser transmitter 6 through wireless connection, and is used to receive the optical axis offset data and the reference signal in real time. The optical sensor 7 detects the current position of the optical axis of the magnifying glass, and the laser transmitter 6 provides a standard optical axis reference. The signal receiving module 801b receives the data of the sensor and the laser transmitter and transmits it to the data processing module 801a.

[0042] The data processing module 801a is the core computing unit of the system. After receiving the data transmitted by the signal receiving module, it analyzes the offset and direction of the optical axis and generates corresponding correction parameters. This module is connected to the feedback analysis module 801d through wires to ensure the real-time data transmission. The calibration parameters after data processing are transmitted to the feedback analysis module to determine whether the current calibration status reaches the preset accuracy.

[0043] The feedback analysis module 801d is electrically connected to the data processing module 801a, and analyzes the optical axis calibration status in real time. When the preset calibration accuracy is reached, the feedback analysis module will send a locking instruction to the control signal sending module 801c, and lock the execution component through a wireless signal to keep the optical axis in a stable calibration state. The control signal sending module 801c communicates with the first electric cylinder 502, the second electric cylinder 404 and the stepper motor 304 through a wireless connection, and sends correction and locking instructions. The first electric cylinder 502 is responsible for longitudinal adjustment, the second electric cylinder 404 controls lateral adjustment, and the stepper motor 304 realizes deflection angle adjustment to ensure the precise alignment of the optical axis of the magnifier.

[0044] In addition, through wireless connection, the central control system 801 can communicate bidirectionally with the laser emitter 6 and the optical sensor 7 to achieve continuous monitoring of the optical axis offset and adjust the frequency and amplitude of the calibration instructions based on real-time feedback, thereby ensuring the persistence and high accuracy of the calibration.

[0045] In summary, the optical axis corrector for medical magnifiers of the present invention realizes high-precision, multi-dimensional optical axis calibration functions through modular design. The modules of the central control system are electrically connected inside the controller through wires to ensure the reliability and stability of signal transmission, while wireless connections are used with external optical sensors, laser transmitters, cylinders, motors and other components to facilitate the layout requirements over long distances, thereby improving the flexibility and portability of the system.

[0046] In summary, the structural design of the present invention simplifies wiring, improves the adaptability of the system, and meets the needs of medical magnifiers in terms of precise calibration and real-time adjustment, making it more suitable for convenient and efficient applications in medical examinations and surgical environments.

[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0049] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Medical magnifying glass optical axis correction instrument, characterized by: The invention comprises a support frame (1), wherein a fixed seat (2) is arranged at the center of the bottom of the support frame (1), a deflection assembly (3), a lateral movement assembly (4) and a longitudinal movement assembly (5) are arranged at the bottom end of the fixed seat (2), a laser emitter (6) is arranged directly above the fixed seat (2), an optical sensor (7) is arranged on the left side of the laser emitter (6), and the laser emitter (6) and the optical sensor (7) are both fixedly mounted on the top of the support frame (1), and a controller (8) is fixedly mounted on the right side wall of the support frame (1), and a central control system (801) is arranged inside the controller (8); The transverse moving assembly (4) is installed above the longitudinal moving assembly (5), the deflection assembly (3) is installed above the transverse moving assembly (4), and the fixed seat (2) is installed above the deflection assembly (3).

2. The optical axis corrector for a medical magnifying glass as claimed in claim 1, characterized in that: A longitudinal moving groove (101) is provided at the center of the bottom of the support frame (1); the longitudinal moving assembly (5) comprises a longitudinal moving plate (501) slidably connected in the longitudinal moving groove (101); a first electric cylinder (502) is provided at the front end of the longitudinal moving plate (501); the first electric cylinder (502) is fixedly installed on the front side of the bottom of the support frame (1); a first telescopic rod (503) is movably connected inside the first electric cylinder (502); and the rear end of the first telescopic rod (503) is fixedly connected to the front wall of the longitudinal moving plate (501).

3. The optical axis corrector for a medical magnifying glass as claimed in claim 2, characterized in that: The transverse moving assembly (4) comprises baffles (401) fixedly mounted on the front and rear sides of the top end of the longitudinal moving plate (501); a transverse moving groove (402) is arranged between the two baffles (401); a transverse moving plate (403) is slidably connected in the transverse moving groove (402); a second electric cylinder (404) is arranged at the left end of the transverse moving plate (403); the second electric cylinder (404) is fixedly mounted on the top end of the longitudinal moving plate (501); a second telescopic rod (405) is movably connected inside the second electric cylinder (404); and the right end of the second telescopic rod (405) is fixedly connected to the left side wall of the transverse moving plate (403).

4. The optical axis corrector for a medical magnifying glass as claimed in claim 3, characterized in that: The deflection assembly (3) comprises a fixed platform (301) fixedly mounted on the top of the transverse moving plate (403); a rotating platform (302) is rotatably connected to the center of the fixed platform (301); a stepper motor (304) is fixedly mounted on the rear end of the fixed platform (301) via a mounting seat (303); an output end of the stepper motor (304) is connected to a rotating shaft (305) via a coupling transmission; and a front end of the rotating shaft (305) passes through a rear side wall of the fixed platform (301) and extends to the interior of the fixed platform (301) to be fixedly connected to the rear side wall of the rotating platform (302).

5. The optical axis corrector for a medical magnifying glass as claimed in claim 4, characterized in that: The fixing seat (2) is fixedly mounted at the center of the top end of the rotating platform (302).

6. The optical axis corrector for a medical magnifying glass as claimed in claim 5, characterized in that: The central control system (801) comprises a data processing module (801a), a signal receiving module (801b), a control signal sending module (801c) and a feedback analysis module (801d), wherein the data processing module (801a) is used to receive and process feedback data from the optical sensor (7) and the laser transmitter (6).

7. The optical axis corrector for a medical magnifying glass as claimed in claim 6, characterized in that: The signal receiving module (801b) is respectively connected to the optical sensor (7) and the laser transmitter (6) for communication, and is used for receiving the optical axis offset data and the optical axis reference signal in real time.

8. The optical axis corrector for a medical magnifying glass as claimed in claim 7, characterized in that: The control signal sending module (801c) is respectively connected to communicate with the first electric cylinder (502), the second electric cylinder (404) and the stepping motor (304), and is used to send a correction instruction.

9. The optical axis corrector for a medical magnifying glass as claimed in claim 8, characterized in that: The feedback analysis module (801d) is electrically connected to the data processing module (801a) via a wire and is used to analyze the optical axis correction state in real time. When the correction reaches a preset value, a locking instruction is sent to the control signal sending module (801c) to maintain the position of the fixing seat (2) in a calibrated state.

10. The optical axis corrector for a medical magnifying glass as claimed in claim 9, characterized in that: The central control system (801) is bidirectionally connected to the laser emitter (6) and the optical sensor (7) to continuously detect the optical axis offset through the feedback analysis module (801d) and adjust the frequency and amplitude of the calibration instruction according to the detection result.

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