Adaptive centering device for collecting lens

Abstract

The utility model discloses a condenser self-adaptive centering device, which is applied to a microscope, and comprises a condenser, an adjusting cylinder and a deflector rod, the condenser is sleeved in the adjusting cylinder, the outer ring wall of the lens cylinder of the condenser is provided with a first mounting hole, the adjusting cylinder is arranged on the microscope, and the outer ring wall of the adjusting cylinder is provided with a curved groove; the deflector rod penetrates through the curved groove to be connected with the first mounting hole, the deflector rod drives the condenser to move in the optical axis direction when sliding along the curved groove, and a damping grease layer is further arranged between the adjacent side walls of the condenser and the adjusting cylinder. The device is helpful for improving the adjusting precision and stability of the collecting lens, and enables the overall operation of the microscope to be more convenient and the observation imaging effect to be better.

Description

Technical Field

[0001] The utility model belongs to the technical field of microscopes, and in particular relates to a self-adaptive centering device for a condenser. Background Art

[0002] A microscope is a precision optical instrument that uses optical principles to magnify and image tiny objects that are indistinguishable to the human eye, allowing for the observation of fine structural information. It is widely used in fields such as medicine, biology, physics, and pathology, becoming an indispensable tool in scientific research and medical diagnosis. The main components of a microscope include the eyepiece, objective lens, and stage. The rational design and configuration of these components enable the microscope to achieve high-resolution imaging under various observation conditions.

[0003] However, the condenser adjustment scheme in the prior art, such as the Chinese patent application number 201521092072.X, discloses a condenser bracket device for a microscope, wherein a through hole is formed on the bracket and a rack is installed, and the condenser lifting hand wheel and the rack are meshed with each other. The condenser bracket device for the microscope also includes a limit pin, a spring, and a screw. A groove is formed in the bracket, and a limit pin and a spring are provided in the groove. The upper portion of the limit pin is connected to the top of the workbench and is locked to the bracket by a screw thread in the middle. The lower portion of the limit pin and the spring are mutually connected. By adopting a structure in which the screw thread in the middle of the limit pin is connected to the bracket, it is convenient for users to operate and adjust. By the upper portion of the limit pin being connected to the top of the workbench and the lower portion of the limit pin being mutually connected with the spring, the limit pin is lifted due to the action of the spring, and the condenser lifting hand wheel is adjusted. When the front end surface of the condenser is to be at the same height as the workbench surface, after tightening the screw, the height position of the fixed workbench is fixed, thereby greatly reducing the error between them. This complex mechanical structure not only increases production costs and the risk of failure, but also takes up a large amount of space, resulting in a larger device, and is cumbersome to assemble and adjust. Furthermore, existing microscopes generally lack adjustment accuracy and stability, which affects the observation of samples under test. They are also difficult to transport and switch between use modes, limiting their scope of application and making their operation complex. Utility Model Content

[0004] The purpose of the present invention is to solve the above problems and propose a condenser adaptive centering device, which helps to improve the adjustment accuracy and stability of the condenser, and makes the overall operation of the microscope more convenient and the observation imaging effect better.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model proposes a condenser adaptive centering device, which is applied to a microscope. The condenser adaptive centering device includes a condenser, an adjustment tube and a shift rod. The condenser is sleeved in the adjustment tube. The outer ring wall of the tube of the condenser is provided with a first mounting hole. The adjustment tube is installed on the microscope and the outer ring wall of the adjustment tube is provided with a curved groove. The shift rod passes through the curved groove and is connected to the first mounting hole. When the shift rod slides along the curved groove, the condenser is driven to move along the optical axis. A damping grease layer is also provided between adjacent side walls of the condenser and the adjustment tube.

[0007] Preferably, the torsional value of the damping grease layer is 6 gf.cm to 10 gf.cm, the height along the optical axis is 10 mm to 12.5 mm, and the weight is 90 mg to 180 mg.

[0008] Preferably, the microscope further comprises a microscope body, a lifting platform and an objective lens conversion unit, the lifting platform comprises a stage, the stage and the objective lens conversion unit are both mounted on the microscope body, and the adjustment cylinder is mounted on and below the stage.

[0009] Preferably, the lifting platform further includes a bracket and an adjusting unit, the stage is connected to the adjusting unit via the bracket, and the adjusting unit is connected to the microscope body and is used to drive the stage to move up and down.

[0010] Preferably, the adjustment unit includes a transmission mechanism, a slide rail, a first adjustment seat, several V-shaped strips, several ball bearings and several bead separators. The microscope body is provided with a first slide groove and a first groove that are interconnected. The slide rail is built into the first slide groove and driven up and down by the transmission mechanism. The slide rail is also connected to the bracket. The first adjustment seat is built into the first groove. A third V-shaped groove is respectively provided on the two opposite side walls of the slide rail. A second V-shaped groove opposite to one of the third V-shaped grooves is provided on the microscope body. A first V-shaped groove opposite to the other third V-shaped groove is provided on the first adjustment seat. The V-shaped strips are arranged in each V-shaped groove one by one. The ball bearings are respectively arranged between the two oppositely arranged V-shaped strips and limited by the bead separators. A plurality of screw holes are also provided on the microscope body. The first adjustment seat is adjusted by screws passing through the screw holes, thereby adjusting the verticality and damping of the slide rail.

[0011] Preferably, the objective lens conversion unit includes an adapter, a connecting seat, a converter and several objective lenses. A first through hole for receiving the adapter is provided on the microscope body, a second through hole for receiving the connecting seat is provided on the adapter, and a third through hole is provided on the connecting seat. The converter is connected to the lower end of the connecting seat, and each objective lens is connected to the converter. The first through hole, the second through hole and the third through hole are all coaxially arranged with the objective lens currently in use.

[0012] Preferably, the microscope body is further provided with an integrally connected handle located on the upper side.

[0013] Preferably, the microscope also includes a circuit control module, which includes a knob coding switch, a display panel, an upper light source, a lower light source, a battery and a power interface board, and the knob coding switch, the upper light source, the lower light source, the battery and the power interface board are all electrically connected to the display panel.

[0014] Preferably, the microscope also includes a lower light source centering unit, which includes a mounting seat and a second adjustment seat. The second adjustment seat is provided with a coaxial annular conical groove, and the mounting seat is provided with a plurality of annularly distributed second mounting holes. The lower light source is installed on the second adjustment seat. The second adjustment seat is sleeved in the mounting seat and is centered by means of a screw passing through the second mounting hole, and the screw is in contact with the inclined line of the annular conical groove.

[0015] Preferably, the microscope further comprises a light collecting mirror which is mounted on the microscope body, and the light emitted by the lower light source passes through the light collecting mirror and the condenser in sequence to reach the sample to be tested.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1) The adaptive centering device for the condenser achieves stable and precise adjustment through the coordinated design of damping grease, a lever, and a curved groove. This helps to simplify the structure and improve the accuracy of condenser adjustment, ensuring the coaxiality of the optical axis and the sample to be measured, and improving the observation and imaging effect.

[0018] 2) The microscope's lifting platform utilizes a V-groove and ball bearing system. Adjusting the first adjustment seat adjusts the verticality and damping of the slide rail, effectively improving the stability and accuracy of the stage's lift. This ensures that the sample under test maintains good stability during up and down movement, thereby improving the reliability of observation results, meeting the needs of high-precision experiments, and reducing the difficulty of production and assembly.

[0019] 3) Compared to the prior art where the microscope body and the converter are threadedly connected, this objective lens conversion unit allows the operator to quickly and conveniently switch the tilt direction of the converter, thereby improving the flexibility of the microscope and supporting the operator's efficiency and convenience in conducting experiments under different conditions;

[0020] 4) Compared with existing fixed lower light source designs, this microscope achieves precise alignment of the light source with the microscope optical axis through the lower light source centering unit, solving the problem of optical axis deviation caused by the fixed light source in the existing technology. The position of the lower light source can be easily adjusted by adjusting the screw, ensuring that the light is evenly concentrated on the sample to be tested, optimizing lighting conditions, and facilitating later disassembly and maintenance. The structure is simpler and easier to operate.

[0021] 5) The handle of the microscope body adopts a crossbeam structure with fixed ends, and a stress dispersion structure is designed at the part where the crossbeam connects to the microscope body. That is, a variable radius fillet design is adopted. This takes into account both aesthetics and ergonomic design. The force exerted on the handle can be evenly transmitted to the microscope body, avoiding stress concentration, thereby improving the strength and stability of the connection part and ensuring that the overall structure of the microscope remains stable during long-term use. In addition, the fusion of the handle and the microscope body enables integrated production, which simplifies the assembly process, improves production efficiency and reduces production costs.

[0022] 6) The integrated knob coding switch can simultaneously realize the switching and brightness adjustment of the upper light source and the lower light source, which greatly simplifies the operation complexity of the operator and improves the convenience of use. The operator can easily adjust the brightness through the knob coding switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded view of the condenser self-adaptive centering device of the utility model;

[0024] Figure 2 This is a schematic diagram of the area covered by the damping grease layer of the condenser adaptive centering device of the utility model;

[0025] Figure 3 This is a cross-sectional view of the condenser self-adaptive centering device of the utility model;

[0026] Figure 4 It is a structural diagram of the microscope of the utility model;

[0027] Figure 5 This is the main view of the microscope of the utility model;

[0028] Figure 6 This is a schematic diagram of the assembly of the microscope body of the utility model and the lifting platform without the stage;

[0029] Figure 7 For this utility model Figure 6 The main view;

[0030] Figure 8 For this utility model Figure 7 AA section view;

[0031] Figure 9 For this utility model Figure 8 A partial enlarged view of FIG1;

[0032] Figure 10 This is a schematic diagram of the assembly of the microscope body and the objective lens conversion unit of the present invention;

[0033] Figure 11 For this utility model Figure 10 BB cross-sectional view;

[0034] Figure 12 For this utility model Figure 11 Partial enlarged view II;

[0035] Figure 13 This is a right side view (in tilted position) of the microscope after removing the converter decorative cover;

[0036] Figure 14 This is a right side view (inward tilted state) of the microscope after removing the converter decorative cover;

[0037] Figure 15 This is a structural diagram of the lower light source centering unit of the utility model;

[0038] Figure 16 This is a structural diagram of the circuit control module of the utility model.

[0039] Explanation of reference numerals: 1. microscope body; 2. lifting platform; 3. focusing unit; 4. objective lens conversion unit; 5. light collecting lens; 6. circuit control module; 7. lower light source centering unit; 11. handle; 21. stage; 22. bracket; 23. adjustment unit; 231. slide rail; 232. first adjustment seat; 233. V-shaped bar; 234. ball bearing; 235. first V-shaped groove; 236. second V-shaped groove; 237. third V-shaped groove; 238, bead separator; 239, screw hole; 31, condenser; 32, adjustment tube; 33, lever; 34, damping grease layer; 311, first mounting hole; 321, curved groove; 41, adapter seat; 42, connecting seat; 43, converter; 44, objective lens; 61, rotary coding switch; 62, display panel; 63, upper light source; 71, mounting seat; 72, second adjustment seat; 73, lower light source; 721, annular conical groove. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the art of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0042] like Figure 1-16 As shown, a condenser adaptive centering device is applied to a microscope. The condenser adaptive centering device includes a condenser 31, an adjustment tube 32 and a lever 33. The condenser 31 is sleeved in the adjustment tube 32. The outer ring wall of the tube of the condenser 31 is provided with a first mounting hole 311. The adjustment tube 32 is installed on the microscope and the outer ring wall of the adjustment tube 32 is provided with a curved groove 321. The lever 33 passes through the curved groove 321 and is connected to the first mounting hole 311. When the lever 33 slides along the curved groove 321, it drives the condenser 31 to move along the optical axis. A damping grease layer 34 is also provided between the adjacent side walls of the condenser 31 and the adjustment tube 32.

[0043] For ease of explanation, the following Figure 4 The directions shown are explained as follows, that is, the up and down direction is the Z direction, the front and back direction is the Y direction, the left and right direction is the X direction, the up, front and right side are the positive directions, and the down, back and left side are the negative directions.

[0044] Among them, the condenser self-adaptive centering device is Figure 1 The central focusing unit 3, whose primary function is to adjust the focus position and intensity of the light source through the condenser 31, thereby improving the image quality of the sample under microscope observation, comprises an adjustment barrel 32, the condenser 31, and a lever 33. The condenser 31 is inserted into the adjustment barrel 32, which has a curved groove 321 in its wall. The lever 33 passes through the groove 321 of the adjustment barrel 32 and is threadedly connected to the first mounting hole 311 of the condenser 31's lens barrel.

[0045] The condenser 31 is the core component of the condenser adaptive centering device, which can be an existing technical structure, such as a lens barrel and several lenses with a built-in lens barrel, or it can be designed according to actual needs. The condenser 31 is threadedly connected to the lever 33, and the lever 33 passes through the curved groove 321 of the adjustment tube 32 at the same time, and adjusts the upper and lower height positions of the condenser 31 (i.e., the position along the optical axis, such as the Z-axis direction) through a rotational action. The adjustment tube 32 and the damping grease layer 34 work together to adjust the vertical position of the condenser 31. When the operator needs to adjust the focal length of the condenser 31, the lever 33 will rotate along the curved groove 321 of the adjustment tube 32, thereby driving the condenser 31 to rotate, so that the condenser 31 is adjusted in the Z-axis direction to ensure that the light source can be accurately focused on the sample to be measured. This structure ensures the accuracy of the adjustment and makes the microscope imaging clearer. The damping grease layer 34 has a specific viscosity and penetration, providing appropriate resistance to the condenser 31, preventing excessive swing and movement due to inertia during adjustment, which could affect optical axis alignment. The use of damping grease ensures smooth and precise adjustment of the condenser 31, reducing unnecessary deflection. The coordination of the lever 33, the curved groove 321, and the damping grease layer 34 ensures torque balance, ensuring simple operation and preventing optical axis deviation due to improper operation.

[0046] To ensure smooth and precise adjustment of the condenser 31, a layer of viscous and penetrating grease is added to the gap between the condenser 31 and the adjustment cylinder 32. This effectively offsets the torque generated by the rotation of the lever 33, preventing excessive shaking or deviation of the condenser 31 during adjustment, thereby ensuring the coaxiality of the condenser 31 with the microscope's optical axis. While reducing structural complexity, the use of the damping grease layer 34 also reduces the number of components required for the condenser adaptive centering device.

[0047] In one embodiment, the torsional value of the damping grease layer 34 is 6 gf.cm to 10 gf.cm, the height along the optical axis is 10 mm to 12.5 mm, and the weight is 90 mg to 180 mg. Figure 2 As shown, in order to ensure the stability of the condenser 31 during the adjustment process, on the outer surface of the barrel of the condenser 31, for example, starting from 3mm to 5mm from the bottom side of the barrel wall of the condenser 31 that cooperates with the adjustment barrel 32, it is preferred that the distance a between the bottom side of the barrel wall of the condenser 31 that cooperates with the adjustment barrel 32 and the damping grease layer 34 is 5mm, and 10mm to 12.5mm along the axial direction, and the height b of the damping grease layer 34 along the optical axis direction is preferably in the range of 12mm (i.e. Figure 2 90 mg to 180 mg of damping grease is evenly applied in the middle section line area to form a damping grease layer 34. The damping grease layer 34 is formed by damping grease with a torque value of 8 gf.cm, a cone penetration of 347, and a dropping point of 186°C, so that the damping grease is evenly distributed in the gap between the focusing lens 31 and the adjustment cylinder 32 after installation.

[0048] In one embodiment, the microscope also includes a microscope body 1, a lifting platform 2 and an objective lens conversion unit 4, the lifting platform 2 includes a stage 21, the stage 21 and the objective lens conversion unit 4 are both installed on the microscope body 1, and the adjustment tube 32 is installed on the stage 21 and is located below the stage 21.

[0049] In one embodiment, the lifting platform 2 further includes a bracket 22 and an adjusting unit 23 . The stage 21 is connected to the adjusting unit 23 via the bracket 22 . The adjusting unit 23 is connected to the microscope body 1 and is used to drive the stage 21 to move up and down.

[0050] In one embodiment, the adjustment unit 23 includes a transmission mechanism, a slide rail 231, a first adjustment seat 232, a plurality of V-shaped bars 233, a plurality of balls 234 and a plurality of bead separators 238. The microscope body 1 is provided with a first slide groove and a first groove that are interconnected. The slide rail 231 is built into the first slide groove and is driven to rise and fall through the transmission mechanism. The slide rail 231 is also connected to the bracket 22. The first adjustment seat 232 is built into the first groove. The two opposite side walls of the slide rail 231 are respectively provided with third V-shaped grooves 237. The microscope body 1 is provided with a first slide groove and a first groove that are interconnected. There is a second V-shaped groove 236 arranged opposite to one of the third V-shaped grooves 237, and a first V-shaped groove 235 arranged opposite to the other third V-shaped groove 237 is provided on the first adjustment seat 232. The V-shaped strips 233 are arranged in each V-shaped groove in a one-to-one correspondence. The balls 234 are respectively arranged between the two oppositely arranged V-shaped strips 233 and are limited by the bead separator 238. A plurality of screw holes 239 are also provided on the microscope body 1. The first adjustment seat 232 is adjusted by screws passing through the screw holes 239, thereby adjusting the verticality and damping of the slide rail 231.

[0051] The purpose of the lifting platform 2 is to adjust the distance between the sample to be measured and the microscope objective lens by controlling the lifting and lowering of the stage 21, thereby obtaining the best imaging effect. The lifting platform 2 includes the stage 21, the bracket 22, and the adjustment unit 23, wherein the adjustment unit 23 includes a transmission mechanism, a slide rail 231, a first adjustment seat 232, a plurality of V-shaped bars 233, a plurality of balls 234, and a plurality of bead separators 238. The slide rail 231 is embedded in the first slide groove, and the first adjustment seat 232 is embedded in the first groove. A third V-shaped groove 237 is respectively formed on the two opposing side walls (such as the left and right side walls) of the slide rail 231. The microscope body 1 is provided with a second V-shaped groove 236 arranged opposite to the third V-shaped groove 237. The first adjustment seat 232 is provided with a first V-shaped groove 235 arranged opposite to the other third V-shaped groove 237. If the first groove is formed on the right side of the first slide groove, then the first V-shaped groove 235 is formed on the left side of the first adjustment seat 232. The slide rail 231 is a moving component driven by a transmission mechanism, used to support the bracket 22 and the stage 21 and achieve their movement in the Z-axis direction (i.e., vertical direction). The transmission mechanism, such as a rack and pinion mechanism, a pneumatic lifting mechanism, a hydraulic lifting mechanism, or an electromagnetic drive mechanism, can achieve smooth and rapid lifting and lowering operations. A third V-shaped groove 237 is provided on both sides of the slide rail 231, which matches the V-shaped bar 233 and achieves smooth sliding through the point contact of the ball bearing 234. The V-shaped bar 233 can achieve a lower roughness and is easy to replace in the event of damage, which is more cost-effective.

[0052] Five balls 234 are used to create point contact between the two pairs of V-shaped bars 233 on either side of the slide rail 231. This design effectively reduces friction and ensures smooth movement of the loading platform 21. The ball bearings 234 are secured within 2.5mm diameter grooves on the 0.5mm thick brass bead plate 238, with a spacing of 4mm between them. This design ensures uniform force on the contact surface between the slide rail 231 and the V-shaped bars 233, allowing the loading platform 21 to move more smoothly.

[0053] The first adjustment seat 232 is installed on the right side of the slide rail 231, and is used to control the damping of the lifting and lowering of the stage 21 and the parallelism of the stage 21 at different heights. Two 2.5mm screw holes are provided on the front side wall corresponding to the first groove on the microscope body 1, which are used to fix the position in the Y direction using GB77 screws, thereby ensuring that the spatial position of the ball 234 in the Y direction remains consistent. In addition, three 3mm screw holes are also opened on the right side wall corresponding to the first groove on the microscope body 1, and the position of the ball 234 in the X direction is adjusted by GB78 screws. When the operator tightens the screws, the pressure on the ball 234 increases, and the friction force also increases accordingly, making the lifting and lowering of the stage 21 more precise and stable.

[0054] Each V-groove cooperates with the V-shaped bar 233, achieving smooth lifting and lowering through point contact of the ball bearings 234. By adjusting the depth of the screws—that is, adjusting the first adjustment seat 232 with five screws—the operator can precisely control the friction during the lifting and lowering of the platform 21, thereby precisely controlling the damping and parallelism of the lifting motion of the platform 21, and thus adjusting the lifting speed and stability of the platform 21. This design simplifies the lifting structure of the platform 21, achieving the same function with fewer parts, reducing the adverse effects of dynamic friction, lowering costs, and simplifying assembly.

[0055] In one embodiment, the objective lens conversion unit 4 includes an adapter 41, a connecting seat 42, a converter 43 and several objective lenses 44. A first through hole for receiving the adapter 41 is provided on the microscope body 1, a second through hole for receiving the connecting seat 42 is provided on the adapter 41, a third through hole is provided on the connecting seat 42, the converter 43 is connected to the lower end of the connecting seat 42, and each objective lens 44 is connected to the converter 43. The first through hole, the second through hole and the third through hole are all coaxially arranged with the objective lens 44 currently in use.

[0056] The objective lens conversion unit 4 is used to connect the converter assembly of the microscope and the microscope body 1, allowing the operator to adjust the tilt direction of the converter assembly as needed, such as to achieve an inward or outward tilt state. The objective lens conversion unit 4 includes an adapter 41, a connecting seat 42 and a converter assembly. The converter assembly includes a converter 43 and a plurality of objective lenses 44. The objective lenses 44 are connected to the bottom of the converter 43 by threads. The adapter 41 is mounted on the microscope body 1 through three threaded holes, and the connecting seat 42 is mounted inside the adapter 41, that is, it is penetrated by the first through hole. The lower end of the connecting seat 42 is an external thread structure and is connected to the converter 43. The first through hole and the second through hole are preferably stepped holes. By manually rotating the connecting seat 42 around the Z axis, the converter assembly can be flexibly switched between the outward and inward tilt states.

[0057] By combining connector 42 with the converter assembly, the converter assembly can be flexibly switched between outward and inward tilt at any time. The converter assembly is secured to the interior of adapter 41 via connector 42. When the operator needs to change the microscope's observation angle, they can quickly adjust the converter assembly's tilt by rotating connector 42, enabling flexible switching for different experimental conditions. This design allows the operator to quickly adjust the microscope's observation angle based on different experimental requirements, ensuring flexibility and significantly improving the microscope's suitability and convenience in various experimental environments.

[0058] It is easy to imagine that the connection base 42 can also be replaced with a magnetic connection device to realize the installation and switching of the converter assembly. This method connects and disconnects the converter assembly through magnetic force, which can provide a fast and convenient switching function.

[0059] In one embodiment, the microscope body 1 is further provided with an integrally connected handle 11 located on the upper side.

[0060] The handle 11 of the microscope body 1 utilizes a crossbeam structure with fixed ends. A stress-dispersing structure, specifically a variable-radius chamfered design, is designed at the connection between the crossbeam and the microscope body 1. This design balances aesthetics and ergonomics, ensuring that forces acting on the handle are evenly transferred to the microscope body 1, avoiding stress concentration at a single point. This improves the strength and stability of the connection, ensuring the stability of the microscope's overall structure during long-term use. Furthermore, the integration of the handle and the microscope body 1 enables integrated production, simplifying the assembly process, improving production efficiency, and reducing costs.

[0061] In one embodiment, the microscope also includes a circuit control module 6, which includes a knob coding switch 61, a display panel 62, an upper light source 63, a lower light source 73, a battery and a power interface board. The knob coding switch 61, the upper light source 63, the lower light source 73, the battery and the power interface board are all electrically connected to the display panel 62.

[0062] The circuit control module 6 is responsible for power management and light source adjustment of the entire microscope, and also provides information display function. This module includes a knob coding switch 61, a display panel 62, an upper light source 63, a lower light source 73, a battery, and a power interface board.

[0063] The display panel 62 is one of the core components of the module. It is directly connected to the knob coding switch 61, the upper light source 63, the lower light source 73, the battery and the power interface board, and is responsible for the brightness control and power supply mode display of the light source. The display panel 62 integrates multiple functions, including: displaying the brightness percentage of the upper light source 63 and the lower light source 73, displaying the battery power and the power supply mode (such as whether to use batteries or external power supply), and the power interface board is used for external power supply. Through the display panel 62, the operator can monitor the working state of the microscope in real time to ensure that the brightness and power supply mode of the light source are within a controllable range. The battery and the knob coding switch 61 are both connected to the display panel 62.

[0064] The illumination system of the microscope includes two upper and lower light sources (upper light source 63 and lower light source 73). The upper light source 63 is used to illuminate the upper surface of the sample to be tested, while the lower light source 73 illuminates the sample to be tested through the bottom. The switching and brightness adjustment of the upper light source 63 and the lower light source 73 are all adjusted by the knob coding switch 61. For example, by pressing the knob coding switch 61, you can switch to use the upper light source 63 or the lower light source 73, and rotate the knob coding switch 61 to adjust the brightness of the corresponding light source. The brightness range is adjusted according to the needs of the operator to ensure that the sample to be tested can be clearly seen under different light source intensities. This integration not only simplifies the operational complexity of light source adjustment, but also reduces the number of parts, reduces the risk of failure and production costs.

[0065] It is easy to imagine that switching between the upper light source 63 and the lower light source 73 and brightness adjustment can also provide an intuitive operation method through a graphical interface. For example, the operator can directly adjust it through a touch screen, the display panel 62 can be directly a touch screen, or a display screen electrically connected to the display panel 62 can be used as a touch screen for operation.

[0066] In one embodiment, the microscope also includes a lower light source centering unit 7, which includes a mounting seat 71 and a second adjustment seat 72. The second adjustment seat 72 is provided with a coaxially arranged annular conical groove 721, and the mounting seat 71 is provided with a plurality of annularly distributed second mounting holes. The lower light source 73 is installed on the second adjustment seat 72. The second adjustment seat 72 is sleeved in the mounting seat 71 and is centered by a screw passing through the second mounting hole, and the screw is in contact with the inclined line of the annular conical groove 721.

[0067] The lower light source centering unit 7 is used to connect the microscope's lower light source 73 to the microscope body 1, making it easier for assembly workers and operators to adjust the position of the lower light source 73 in the X and Y directions. The module includes a mounting base 71 and a second adjustment base 72, into which the lower light source 73 can be built.

[0068] The mounting base 71 is a key bearing component of the module, which is used to connect the lower light source 73 to the microscope body 1. The mounting base 71 is fixed to the lower wall of the microscope body 1 by three screws, providing stable fixed support. The lower light source 73 is fixed to the second adjustment base 72 using three screws. In order to ensure that the lower light source 73 can be accurately adjusted in the X and Y directions, the side wall of the mounting base 71 is provided with three annular evenly distributed threaded holes for mounting screws, and the chamfer slope of the annular cone groove 721 of the second adjustment base 72 is consistent with the chamfer slope of the screw end, so that these screws can be tightened to the center by rotating the screw. The contact form of the screw end and the second adjustment base 72 is line contact, controlling the precise movement of the lower light source 73 in the X and Y directions. This design provides a convenient adjustment means for the operator, which not only ensures the accuracy of the adjustment, but also reduces the complexity of assembly and operation. It is simple in structure and easy to operate, avoids the problems of complex multi-axis adjustment mechanism and high maintenance cost in the prior art, and provides a more efficient microscope operation experience for the operator. It is easy to understand that when the annular conical groove 721 is not provided on the second adjustment seat 72 , the screw passing through the second mounting hole can also be adjusted by directly pressing against the cylinder wall of the second adjustment seat 72 .

[0069] In one embodiment, the microscope further includes a light collecting lens 5 mounted on the microscope body 1. Light emitted by the lower light source 73 sequentially passes through the light collecting lens 5 and the condenser lens 31 to reach the sample to be tested. The lower light source centering unit 7 uses three screws to precisely adjust the lower light source 73 in the X and Y directions, ensuring that the lower light source 73 is fully aligned with the optical axis of the light collecting lens 5, ensuring that the light is focused on the target area of ​​the sample to be tested.

[0070] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments merely represent specific and detailed examples of the present application and should not be construed as limiting the scope of the present application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, and such modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A condenser adaptive centering device, applied to a microscope, characterized by: The condenser self-adaptive centering device comprises a condenser (31), an adjustment tube (32) and a shifting rod (33); the condenser (31) is sleeved in the adjustment tube (32); a first mounting hole (311) is provided on the outer ring wall of the tube of the condenser (31); the adjustment tube (32) is mounted on a microscope and a curved groove (321) is provided on the outer ring wall of the adjustment tube (32); the shifting rod (33) passes through the curved groove (321) and is connected to the first mounting hole (311); when the shifting rod (33) slides along the curved groove (321), it drives the condenser (31) to move along the optical axis; and a damping grease layer (34) is further provided between adjacent side walls of the condenser (31) and the adjustment tube (32).

2. The condenser adaptive centering device according to claim 1, characterized in that: The damping grease layer (34) has a torsional value of 6 gf.cm to 10 gf.cm, a height along the optical axis direction of 10 mm to 12.5 mm, and a weight of 90 mg to 180 mg.

3. The condenser adaptive centering device according to claim 1, wherein: The microscope further comprises a microscope body (1), a lifting platform (2) and an objective lens conversion unit (4); the lifting platform (2) comprises an objective stage (21); the objective stage (21) and the objective lens conversion unit (4) are both mounted on the microscope body (1); and the adjustment cylinder (32) is mounted on the objective stage (21) and is located below the objective stage (21).

4. The condenser adaptive centering device according to claim 3, wherein: The lifting platform (2) further comprises a bracket (22) and an adjustment unit (23); the stage (21) is connected to the adjustment unit (23) via the bracket (22); the adjustment unit (23) is connected to the microscope body (1) and is used to drive the stage (21) to move up and down.

5. The condenser self-adaptive centering device according to claim 4, characterized in that: The adjustment unit (23) includes a transmission mechanism, a slide rail (231), a first adjustment seat (232), a plurality of V-shaped bars (233), a plurality of ball bearings (234) and a plurality of bead separating pieces (238). The microscope body (1) is provided with a first slide groove and a first groove that are interconnected. The slide rail (231) is built into the first slide groove and is driven to rise and fall by the transmission mechanism. The slide rail (231) is also connected to the bracket (22). The first adjustment seat (232) is built into the first groove. The two opposite side walls of the slide rail (231) are respectively provided with a third V-shaped groove (237). The microscope body (1) is provided with a first groove connected to the first groove. A second V-shaped groove (236) is provided opposite to the third V-shaped groove (237); a first V-shaped groove (235) is provided on the first adjustment seat (232) and is provided opposite to the other third V-shaped groove (237); the V-shaped strips (233) are provided in each V-shaped groove in a one-to-one correspondence; the balls (234) are respectively provided between the two oppositely provided V-shaped strips (233) and are limited by the bead separating piece (238); a plurality of screw holes (239) are further provided on the microscope body (1); the first adjustment seat (232) is adjusted by screws passing through the screw holes (239), thereby adjusting the verticality and damping of the slide rail (231).

6. The condenser self-adaptive centering device according to claim 3, wherein: The objective lens conversion unit (4) comprises an adapter seat (41), a connecting seat (42), a converter (43) and a plurality of objective lenses (44); a first through hole for receiving the adapter seat (41) is provided on the microscope body (1); a second through hole for receiving the connecting seat (42) is provided on the adapter seat (41); a third through hole is provided on the connecting seat (42); the converter (43) is connected to the lower end of the connecting seat (42); each objective lens (44) is connected to the converter (43); and the first through hole, the second through hole and the third through hole are all coaxially arranged with the objective lens (44) currently in use.

7. The condenser self-adaptive centering device according to claim 3, wherein: The microscope body (1) is also provided with an integrally connected handle (11) located on the upper side.

8. The condenser adaptive centering device according to any one of claims 1 to 7, characterized in that: The microscope further comprises a circuit control module (6), wherein the circuit control module (6) comprises a rotary coding switch (61), a display panel (62), an upper light source (63), a lower light source (73), a battery and a power interface board, wherein the rotary coding switch (61), the upper light source (63), the lower light source (73), the battery and the power interface board are all electrically connected to the display panel (62).

9. The condenser self-adaptive centering device according to claim 8, characterized in that: The microscope further comprises a lower light source centering unit (7), the lower light source centering unit (7) comprising a mounting seat (71) and a second adjustment seat (72), the second adjustment seat (72) being provided with a coaxially arranged annular conical groove (721), the mounting seat (71) being provided with a plurality of annularly distributed second mounting holes, the lower light source (73) being mounted on the second adjustment seat (72), the second adjustment seat (72) being sleeved in the mounting seat (71) and being centered by means of a screw passing through the second mounting hole, the screw being in contact with the inclined line of the annular conical groove (721).

10. The condenser self-adaptive centering device according to claim 9, characterized in that: The microscope further comprises a light collecting mirror (5), which is mounted on the microscope body (1). Light emitted by the lower light source (73) passes through the light collecting mirror (5) and the condenser (31) in sequence to reach the sample to be tested.

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