Probe launching lens module based on performance simulation test of laser range finder

Abstract

The utility model discloses a kind of probe emission lens module based on laser range finder performance simulation test, including light source, crosshair reticle scale plate, focal length adjusting objective and emission lens group arranged in order according to simulated light path emission direction;Light source is adjusted light axis deflection angle by fine adjustment mechanism, is calibrated under the indication of crosshair reticle scale plate;Focal length adjusting objective and emission lens group spacing adjustable, can change beam expansion ratio;It is also provided with illumination unit to provide illumination support for crosshair reticle scale plate.This module solves the calibration and beam expansion ratio adjustment problem in the performance simulation test of prior art.Fine adjustment mechanism makes light source calibration accurate, guarantee simulation test accurate and reliable;Spacing adjustable design makes beam expansion ratio change flexibly, satisfy different test needs;Illumination unit makes observation clearer, improve calibration and test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of laser rangefinder testing technology, and in particular to a probe transmitting lens module based on laser rangefinder performance simulation testing. Background Technology

[0002] Simulation testing of laser rangefinders is a crucial inspection method. It allows for the evaluation and verification of various performance indicators of laser rangefinders without requiring actual and complex outdoor measurements. Traditional laser rangefinder testing typically relies on real-world environmental testing. However, real-world environments contain numerous uncontrollable factors, such as weather, terrain, and target characteristics, which can interfere with the test results, making it difficult to accurately assess the true performance of the laser rangefinder. Simulation testing, on the other hand, can accurately simulate various real-world measurement scenarios with different distances and reflectivities by constructing specific optical environments and target object models.

[0003] In the simulation testing of laser rangefinders, the performance of the transmitting lens module is a key factor determining the overall system testing accuracy. In-depth analysis revealed that existing technical solutions have significant limitations in several aspects:

[0004] Firstly, in terms of beam control, traditional transmitting lens systems use a fixed magnification beam expander objective lens design. This rigid configuration cannot flexibly adjust the beam divergence angle parameters according to the actual needs of different ranging scenarios, resulting in poor system adaptability.

[0005] Secondly, regarding the observation reference, the lack of illumination on the reticle significantly reduces the visual discernibility of the crosshairs in low-light environments or under complex lighting conditions, directly impacting the operator's alignment accuracy and work efficiency. These technical deficiencies collectively limit the performance and reliability of laser rangefinders in various application scenarios. Utility Model Content

[0006] The purpose of this invention is to propose a probe transmitting lens module for laser rangefinder performance simulation testing. This module aims to solve the problems existing in the current technology for laser rangefinder simulation testing and provide strong support for more accurate and efficient simulation testing.

[0007] To achieve the above objectives, this utility model discloses a probe transmitting lens module based on laser rangefinder performance simulation testing. Its key features include: a light source, a crosshair reticle, a focal length adjustment objective, and a transmitting lens group arranged sequentially according to the simulated optical path emission direction; the light source achieves fine adjustment of the optical axis deflection angle through a fine-tuning mechanism to complete calibration under the guidance of the crosshair reticle; the distance between the focal length adjustment objective and the transmitting lens group is adjustable, thereby changing the beam expansion ratio; an illumination unit is also provided relative to the crosshair reticle to provide illumination support.

[0008] Furthermore, both the light source and the cross-shaped reticle can be detachably mounted in the mounting holes provided in the mounting base, and the optical axis of the light source passes through the center of the cross-shaped reference line of the cross-shaped reticle.

[0009] Furthermore, the focal length adjustment objective lens is mounted in the internal threaded sleeve via an external threaded retainer, and its mounting position can be controlled by rotating the external threaded retainer.

[0010] Furthermore, the transmitting lens assembly is fixed in place by means of a pressure ring.

[0011] Furthermore, the probe emitting lens module also includes a first lens barrel and a second lens barrel, which are coaxially and detachably connected by mounting screws to form a light guide channel; a mounting base is provided at the first end of the first lens barrel, and a focal length adjustment objective lens and an emitting lens group are respectively provided at the first and last ends of the second lens barrel.

[0012] Furthermore, the fine-tuning mechanism includes at least four fine-tuning screws evenly distributed along the circumference of the first lens barrel. The fine-tuning screws extend radially inward through threaded holes opened on the wall of the first lens barrel, and their ends abut against the mounting base to achieve optical axis deflection compensation.

[0013] Furthermore, the lighting unit includes a laterally arranged LED light and a power cable.

[0014] Furthermore, a mounting plate is also provided on the second lens barrel, and the mounting plate has leveling screw holes and mounting screw holes.

[0015] Furthermore, a reinforcing plate is also abutting between the barrel wall of the second lens tube and the mounting plate.

[0016] Compared with the prior art, the significant advantages of this utility model are:

[0017] (1) In terms of beam control, this module features a unique design that allows for adjustable spacing between the focal length adjustment objective and the transmitting lens group, enabling flexible changes in the beam expansion ratio. This means that in different ranging scenarios, the beam divergence angle parameter can be precisely adjusted according to actual needs, greatly improving the system's adaptability and testing accuracy. For example, in simulating a test scenario of close-range, high-reflectivity targets, the beam expansion ratio can be reduced to make the beam more focused and obtain more accurate test data; while in simulating a long-range, low-reflectivity target, the beam expansion ratio can be increased to allow the beam to cover a wider area and ensure comprehensive testing.

[0018] (2) Regarding optical axis calibration, this module is equipped with a fine-tuning mechanism. The light source can achieve fine-tuning of the optical axis deflection angle through the fine-tuning mechanism, and the calibration is completed under the guidance of the crosshair reticle. This design avoids the tedious operation of manually adjusting the position of the reticle in traditional mechanical methods, and can quickly and accurately make the emitted optical axis meet the coaxiality requirements, effectively improving calibration efficiency and calibration accuracy. Whether in a high-precision testing environment in the laboratory or in a rapid testing scenario on site, optical axis calibration can be completed quickly, ensuring the reliability of test results;

[0019] (3) Regarding the observation reference, this module incorporates an illumination unit to address the lack of illumination on the reticle. This illumination unit includes side-mounted LED lights and power cables, providing illumination support for the crosshair reticle. Even in low-light environments or under complex lighting conditions, it significantly improves the visual recognition of the crosshairs, thereby enhancing the operator's alignment accuracy and work efficiency, and ensuring accurate simulation testing in various environments.

[0020] (4) In terms of structural design, this module adopts a method in which the first and second lens barrels are coaxially and detachably connected by mounting screws to form a light guide channel. This detachable structural design not only facilitates the assembly and disassembly of the module and makes daily maintenance and upkeep easier, but also allows for quick replacement of the corresponding lens barrel or internal components in case of component damage, reducing maintenance costs and time. At the same time, the reinforcing plate abuts against the wall of the second lens barrel and the mounting plate, enhancing the stability and reliability of the entire module structure, enabling it to maintain good performance under different usage environments and working conditions;

[0021] (5) Regarding ease of installation, the mounting plate on the second lens barrel has leveling screw holes and mounting screw holes. The leveling screw holes allow for easy horizontal adjustment of the module, ensuring it remains level during installation, which helps improve test accuracy. The mounting screw holes allow the module to be securely installed on the required test equipment or platform, making the installation process simple and quick, further improving the efficiency of building the entire simulation test system. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the internal structure of the probe transmitting lens module in Embodiment 1 (I);

[0024] Figure 2 This is a schematic diagram (II) of the internal structure of the probe transmitting lens module in Embodiment 1;

[0025] Figure 3 This is a front view of the probe transmitting lens module in Embodiment 1;

[0026] The following numbers are labeled in the diagram: 1-Light source, 2-Cross-shaped reticle, 3-Focus adjustment objective lens, 4-Emitting lens group, 5-Illumination unit, 6-Mounting base, 7-Mounting hole, 8-External threaded retaining ring, 9-Internal threaded sleeve, 10-Pressure ring, 11-First lens barrel, 12-Second lens barrel, 13-Fine adjustment screw, 14-LED illumination lamp, 15-Power cable, 16-Mounting plate, 17-Leveling screw hole, 18-Mounting screw hole, 19-Reinforcing plate, 20-Mounting screw. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Please see Figure 1As an embodiment of this application, a probe emitting lens module for laser rangefinder performance simulation testing is provided. It includes a light source 1, a crosshair reticle 2, a focal length adjustment objective lens 3, and an emitting lens group 4 arranged sequentially according to the simulated optical path emission direction. The light source 1 uses a fine-tuning mechanism to fine-tune the optical axis angle, thereby completing calibration under the guidance of the crosshair reticle 2. The distance between the focal length adjustment objective lens 3 and the emitting lens group 4 is adjustable, thereby changing the beam expansion ratio. An illumination unit 5 is also provided relative to the crosshair reticle 2 to provide illumination support. This probe emitting lens module has the advantages of high precision and high stability in performance simulation testing. Through the fine-tuning of the optical axis angle of the light source 1 and the adjustability of the beam expansion ratio, different laser ranging scenarios can be accurately simulated, providing a more realistic and reliable testing environment for laser rangefinder performance testing. The presence of the fine-tuning mechanism of the light source 1 makes the optical axis calibration more accurate, effectively reducing measurement errors and improving the accuracy of test results. The flexible adjustment of the beam expansion ratio allows for adaptation to various ranging ranges and accuracy requirements, enhancing the applicability and comprehensiveness of the tests. The illumination unit 5 is also of great significance. Its illumination support makes the crosshair reticle 2 more clearly visible, facilitating accurate observation and judgment by the operator. In actual testing, the clear indication of the crosshair reticle 2 helps to complete calibration quickly and accurately, improving testing efficiency.

[0030] like Figure 2As shown, in specific implementation, both the light source 1 and the crosshair reticle are detachably mounted in the mounting holes 7 of the mounting base 6, and the optical axis of the light source 1 passes through the center of the crosshair reference line of the crosshair reticle. This detachable assembly method makes maintenance and replacement of the light source 1 and the crosshair reticle more convenient. When the light source 1 malfunctions or needs performance upgrades, it can be quickly removed from the mounting base 6 for repair or replacement without affecting other components. If the crosshair reticle's accuracy is affected or it is damaged, it can also be easily replaced, ensuring the normal operation of the entire module. The optical axis of the light source 1 passing through the center of the crosshair reference line of the crosshair reticle ensures the accuracy and stability of light emission. In laser rangefinder performance simulation testing, precise light emission is key to obtaining accurate measurement results. Through this design, light can propagate along a predetermined optical path, reducing light deviation and scattering, and improving the accuracy of the simulation test. Simultaneously, this precise light emission also enhances the reliability of the entire probe lens module, enabling stable testing under different environmental conditions. Furthermore, this mounting method of the light source 1 and the cross-shaped reticle improves the assembly efficiency of the entire module. During production, installers can accurately position the light source 1 and the cross-shaped reticle using the mounting holes 7 on the mounting base 6, quickly completing the assembly work and reducing production costs and cycle time. Moreover, due to its relatively simple structure, it is also convenient for operators to inspect and adjust during subsequent use, ensuring that the module is always in optimal working condition.

[0031] In this embodiment, the focus-adjusting objective lens 3 is installed within the internally threaded sleeve 9 via an external threaded retainer 8, and its installation position can be controlled by rotating the external threaded retainer 8. The transmitting lens assembly 4 is assembled and fixed using a pressure ring 10. This installation method facilitates the installation and adjustment of the focus-adjusting objective lens 3 and the transmitting lens assembly 4. For the focus-adjusting objective lens 3, rotating the external threaded retainer 8 allows for precise control of its position within the internally threaded sleeve 9, thereby flexibly adjusting the focus to adapt to different simulation test requirements. For example, when simulating ranging scenarios at different distances, the focus can be quickly and accurately adjusted according to the actual situation to ensure the accuracy of the test. The transmitting lens assembly 4 is assembled and fixed using the pressure ring 10, ensuring its stable installation and preventing positional displacement due to vibration or other factors during testing, which could affect the test results. Simultaneously, this installation structure design also facilitates module maintenance and upgrades. When the focus-adjusting objective lens 3 or the transmitting lens assembly 4 malfunctions and requires repair or replacement, operators can easily disassemble and install it. For the focus adjustment objective lens 3, it can be removed simply by rotating the external threaded retainer 8; for the transmitting lens assembly 4, the corresponding operation can be performed by removing the retaining ring 10. This greatly shortens maintenance time and reduces maintenance costs. Moreover, when it is necessary to upgrade the module's performance, it is also relatively easy to replace the focus adjustment objective lens 3 or the transmitting lens assembly 4 with a more advanced one, improving the performance of the entire probe transmitting lens module. In addition, this installation method also enhances the overall stability of the module. The fit between the external threaded retainer 8 and the internal threaded sleeve 9, as well as the fixation of the transmitting lens assembly 4 by the retaining ring 10, ensures a tight connection between the various components, reducing errors caused by loosening. In complex testing environments, such as those with vibration or temperature changes, this stable installation structure ensures the module's continuous and stable operation, providing reliable support for laser rangefinder performance simulation testing, ensuring the accuracy and reliability of test results, and further enhancing the value of the probe transmitting lens module in practical applications.

[0032] Specifically, the probe emitting lens module also includes a first lens barrel 11 and a second lens barrel 12, which are coaxially and detachably connected by mounting screws 20 to form a light guide channel. A mounting base 6 is provided at the first end of the first lens barrel 11, and a focal length adjustment objective lens 3 and an emitting lens group 4 are respectively provided at the first and last ends of the second lens barrel 12. This design of the first lens barrel 11 and the second lens barrel 12 not only optimizes the light transmission path but also greatly facilitates the assembly and maintenance of the module. In terms of light transmission, the formation of the light guide channel ensures that the light can propagate stably along the predetermined path, reducing light loss and scattering, and improving the transmission efficiency and quality of the light. This is crucial for the performance simulation test of the laser rangefinder, as stable and high-quality light transmission is the foundation for obtaining accurate test results. From an assembly perspective, the coaxial and detachable connection method achieved by the mounting screws 20 makes the assembly process of the first lens barrel 11 and the second lens barrel 12 simple and quick. In the production process, workers can easily connect the two lens barrels together and ensure their coaxiality, guaranteeing the overall accuracy of the module. Meanwhile, this detachable design also facilitates subsequent maintenance. When a component inside the module malfunctions, maintenance personnel can quickly disassemble the lens barrel to repair or replace the faulty component without having to disassemble the entire module extensively, greatly saving maintenance time and costs. Furthermore, the mounting base 6 at the head of the first lens barrel 11 and the focal length adjustment objective lens 3 and the emitting lens group 4 at the head and tail of the second lens barrel 12 respectively form an orderly optical structure. The mounting base 6 provides a stable mounting position for the light source 1 and the crosshair reticle 2, ensuring their relative positional accuracy and thus ensuring the accuracy of light emission. The rational layout of the focal length adjustment objective lens 3 and the emitting lens group 4 allows the light to be emitted in optimal condition after precise focal length adjustment and beam expansion, providing strong support for simulating different laser ranging scenarios.

[0033] Please see Figure 2 and Figure 3In practical applications, the fine-tuning mechanism includes at least four fine-tuning screws 13 evenly distributed along the circumference of the first lens barrel 11. Each fine-tuning screw 13 extends radially inward through threaded holes in the wall of the first lens barrel 11, and its end abuts against the mounting base 6 to achieve optical axis deflection compensation. This fine-tuning mechanism design has several advantages. During use, the fine-tuning screws 13 can precisely adjust the optical axis deflection according to actual needs. Because the fine-tuning screws 13 are evenly distributed along the circumference of the first lens barrel 11, the adjustment force in all directions is uniform during optical axis deflection compensation, avoiding optical axis deviation caused by excessive or insufficient local adjustment. The radial inward extension of the fine-tuning screws 13 and their abutment against the mounting base 6 enables precise control of the position of the mounting base 6. When optical axis deflection occurs, maintenance personnel can rotate the fine-tuning screws 13 to change the force and position of their abutment against the mounting base 6, thereby compensating for the optical axis deflection and ensuring accurate light emission, thus improving the accuracy and reliability of laser ranging. Furthermore, this fine-tuning mechanism is characterized by its ease of operation and high flexibility. Maintenance personnel do not require complex tools or techniques; they can adjust the fine-tuning screw 13 using only simple tools such as a screwdriver. Moreover, the fine-tuning mechanism can quickly respond and make corresponding adjustments under different working environments and usage requirements to adapt to various complex laser ranging scenarios. At the same time, the simple structure of the fine-tuning mechanism makes it easy to maintain and repair, reducing the operating costs and maintenance difficulty of the equipment.

[0034] It is worth mentioning that, in some other embodiments, at least four objective lens fine-tuning screws 13 can be provided in the circumferential direction of the second lens barrel 12. These objective lens fine-tuning screws 13 act on the internal threaded sleeve 9 to compensate for the deflection angle of the focal length fine-tuning objective lens, thereby achieving optical axis calibration. This design of providing objective lens fine-tuning screws 13 on the second lens barrel 12 further improves the adjustment flexibility and accuracy of the entire probe transmitting lens module. In actual testing, the focal length fine-tuning objective lens may deflect due to various factors, thus affecting the light propagation and the accuracy of the simulation test. By providing objective lens fine-tuning screws 13 in the circumferential direction of the second lens barrel 12 and having them act on the internal threaded sleeve 9, the deflection angle of the focal length fine-tuning objective lens can be compensated in a timely manner. The operator can adjust the position of the internal threaded sleeve 9 by rotating the objective lens fine-tuning screws 13 according to the actual situation, thereby changing the angle of the focal length fine-tuning objective lens, allowing the light to propagate accurately along the simulated optical path, reducing measurement errors, and improving the reliability of the test results. The fine-tuning screw 13 on the second lens barrel 12 works in conjunction with the fine-tuning mechanism on the first lens barrel 11 to further improve the optical axis calibration system of the entire module. In complex and ever-changing laser ranging scenario simulation tests, these two fine-tuning mechanisms can work together to precisely adjust the optical axis from different aspects, ensuring high-precision light emission and simulation testing under various conditions. Moreover, this fine-tuning mechanism does not increase the operational difficulty of the module. Maintenance personnel can complete the adjustment work quickly and easily by following certain operating procedures and using simple tools. Furthermore, the design of this fine-tuning mechanism also considers the long-term use and stability of the module. During long-term testing, the module may be affected by factors such as vibration and temperature changes, leading to slight deviations in the optical axis. The fine-tuning mechanisms on the first and second lens barrels 11 can compensate for these deviations in a timely manner, ensuring the module is always in optimal working condition, extending the module's lifespan, reducing the risk of test failure due to optical axis deviation, and providing a more reliable and stable guarantee for laser rangefinder performance simulation testing.

[0035] In specific implementation, the lighting unit 5 includes a side-arranged LED light 14 and a power cable 15. This side-arrangement has unique advantages. The side-arranged LED light 14 can provide illumination support for the crosshair reticle 2 from the side, avoiding the shadows and reflections that may occur with front lighting. During simulation testing, the illumination support makes the lines on the crosshair reticle 2 clearer and sharper, allowing operators to more accurately observe and judge the position and state of the light, thus completing the calibration work more precisely. The power cable 15 provides a stable power supply to the LED light 14. It can reliably transmit electrical energy from the external power source to the LED light 14, ensuring its normal illumination. In addition, as the core component of the lighting unit 5, the LED light 14 has advantages such as energy saving, long lifespan, and high luminous efficiency. During long-term simulation testing, the LED light 14 can continuously and stably emit light, reducing the trouble and cost of frequently replacing the light source 1. Its high luminous efficiency can also reduce energy consumption while providing sufficient brightness, meeting the requirements of energy conservation and environmental protection. The lighting unit 5, consisting of the side-arranged LED lights 14 and the power cables 15, provides reliable lighting support for the probe transmitting lens module in the laser rangefinder performance simulation test, further improving the performance and practicality of the entire module.

[0036] In this embodiment, a mounting plate 16 is also provided on the second lens barrel 12. The mounting plate 16 has leveling screw holes 17 and mounting screw holes 18. A reinforcing plate 19 abuts between the barrel wall of the second lens barrel 12 and the mounting plate 16. The mounting plate 16 facilitates the installation and fixation of the probe emitting lens module. The leveling screw holes 17 can be used to install leveling screws. By adjusting the leveling screws, the module can be kept in a horizontal state, ensuring the horizontality and accuracy of light emission. In the performance simulation test of the laser rangefinder, the horizontality of light emission is crucial to the accuracy of the test results; even a slight tilt may lead to measurement errors. The mounting screw holes 18 are used to fix the module to the test platform or other equipment, ensuring that the module will not shift during the test, thus improving the stability and reliability of the test. The reinforcing plate 19 abuts between the barrel wall of the second lens barrel 12 and the mounting plate 16, further enhancing the structural strength of the module. It can effectively disperse the external force on the mounting plate 16, reduce stress concentration, and prevent the mounting plate 16 and the second lens barrel 12 from deforming or being damaged during long-term use or vibration. In actual testing environments, the module may be subjected to various vibrations and impacts. The presence of the reinforcing plate 19 is like adding a protective barrier to the module, ensuring the structural integrity and stability of the module, thereby ensuring the accuracy and reliability of the test results.

[0037] In summary, the probe transmitting lens module for laser rangefinder performance simulation testing of this invention demonstrates significant advantages in multiple aspects through its rational structural design and component layout. From the fine-tuning mechanism of the light source 1 and the adjustability of the beam expander, to the setting of the illumination unit 5 and the connection method of the lens barrel, and further to the design of the fine-tuning mechanism and the reinforcing plate 19, every detail contributes to improving the module's accuracy, stability, applicability, and reliability. This module can provide an accurate, realistic, and reliable testing environment for laser rangefinder performance simulation testing, and has significant application value and broad market prospects in the fields of laser rangefinder research and development, production, and quality inspection. It is expected to become an important tool and technical support in the field of laser rangefinder performance simulation testing.

[0038] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A probe transmitting lens module based on laser rangefinder performance simulation testing, characterized in that: The system includes a light source, a crosshair reticle, a focal length adjustment objective, and a emitting lens assembly arranged sequentially according to the simulated optical path emission direction. The light source achieves fine adjustment of the optical axis deflection angle through a fine-tuning mechanism to complete calibration under the guidance of the crosshair reticle. The distance between the focal length adjustment objective and the emitting lens assembly is adjustable, thereby changing the beam expansion magnification. An illumination unit is also provided relative to the crosshair reticle to provide illumination support. 2.The probe lens module based on the performance simulation test of a laser range finder according to claim 1, wherein: Both the light source and the cross-shaped reticle can be detachably mounted in the mounting holes of the mounting base, and the optical axis of the light source passes through the center of the cross-shaped reference line of the cross-shaped reticle. 3.The probe lens module based on the performance simulation test of a laser range finder according to claim 2, characterized in that: The focal length adjustment objective lens is installed in the internal threaded sleeve via an external threaded retainer, and its installation position can be controlled by rotating the external threaded retainer.

4. The probe lens module for simulating the performance of a laser range finder according to claim 3, wherein: The transmitting lens assembly is fixed in place by means of a pressure ring.

5. The probe lens module for performance simulation test based on laser range finder according to any one of claims 2-4, characterized in that: The probe transmitting lens module also includes a first lens barrel and a second lens barrel, which are coaxially and detachably connected by mounting screws to form a light guide channel; a mounting base is provided at the first end of the first lens barrel, and a focal length adjustment objective lens and a transmitting lens group are respectively provided at the first and last ends of the second lens barrel. 6.The probe lens module based on the performance simulation test of a laser range finder according to claim 5, characterized in that: The fine-tuning mechanism includes at least four fine-tuning screws evenly distributed along the circumference of the first lens barrel. The fine-tuning screws extend radially inward through threaded holes opened on the wall of the first lens barrel, and their ends abut against the mounting base to achieve optical axis deflection compensation.

7. The probe launching lens module based on the performance simulation test of the laser range finder according to claim 6, characterized in that: The lighting unit includes side-arranged LED lights and power cables. 8.The probe lens module based on the performance simulation test of the laser range finder according to claim 6 or 7, characterized in that: A mounting plate is also provided on the second lens barrel, and the mounting plate has leveling screw holes and mounting screw holes.

9. The probe launching lens module based on the performance simulation test of the laser range finder according to claim 8, characterized in that: A reinforcing plate is also abutting between the tube wall of the second lens barrel and the mounting plate.

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