Objective lens converter integrated with liquid distribution function and microscope

Abstract

The invention provides an objective lens converter integrated with a liquid distribution function and a microscope. The objective lens converter comprises a fixed disc and a rotating disc rotatably arranged on the fixed disc, and a plurality of objective lenses are arranged on the rotating disc at intervals. A first liquid channel capable of being communicated with an external pump body is arranged on a fixed disc, a second liquid channel communicated with a liquid storage tank on an objective lens is arranged on a rotating disc, and the rotating disc can rotate on the fixed disc in a sealed mode. The second liquid channel synchronously rotates to the position corresponding to the first liquid channel to achieve communication, and due to the fact that the pipeline between the second liquid channel and the liquid storage tank synchronously rotates along with the rotating disc, the situation that the pipeline is wound is avoided; the first liquid channel is connected with the external pump body through the pipeline, the weight of the objective lens converter is not increased, the structure is simple, and maintenance is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of liquid immersion microscope objective lenses, and in particular to an objective lens converter and a microscope with integrated liquid distribution function. Background Art

[0002] In the field of microscopic imaging, various automatic scanning systems have been developed in the industry, in which the sample and the objective lens move relative to each other, the objective lens automatically focuses, and scans without human intervention. At present, in some microscopic imaging fields, oil-immersion or water-immersion objective lenses are required for observation, but the existing objective lenses do not have the function of liquid distribution, so liquid needs to be supplied to the objective lenses through an external liquid supply system. However, the existing liquid supply system for the objective lens has the following shortcomings:

[0003] 1. Liquid is supplied to the objective lens through a pipeline alone. When liquid is supplied to multiple special objective lenses through pipelines, the pipelines are easily entangled due to the need to rotate and switch the objective lenses;

[0004] 2. If the liquid supply system is directly installed on the objective lens converter, the objective lens converter will be heavy, complex in structure and difficult to maintain, and the liquid storage capacity is limited and there is no liquid discharge function, so large-area scanning cannot be achieved. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an objective lens converter and a microscope with integrated liquid dispensing function to solve the above-mentioned problem.

[0006] The present invention adopts the following scheme:

[0007] The present application provides an objective lens converter with integrated liquid distribution function, comprising a fixed disk, a rotating disk rotatably arranged on the fixed disk, and a plurality of objective lenses arranged at intervals on the rotating disk;

[0008] The fixed disk is provided with a first liquid channel that can communicate with an external pump body; the rotating disk is provided with at least one second liquid channel; and a rotating seal of an end surface is formed between the fixed disk and the rotating disk;

[0009] At least one of the objective lenses is provided with an outer shell, and a liquid storage tank with an upper opening is formed between the outer shell and at least the upper observation end of the objective lens; the second liquid channel is connected to the liquid storage tank through a pipeline; when the rotating disk is rotated to rotate the objective lens with the liquid storage tank to the observation position, the second liquid channel is exactly connected to the first liquid channel in a sealed manner.

[0010] Furthermore, an overflow groove connected to the opening is formed on the outer side of the liquid storage tank; the first liquid channel includes a first liquid inlet channel and a first liquid outlet channel; the second liquid channel includes a second liquid inlet channel and a second liquid outlet channel; the second liquid inlet channel is connected to the liquid storage tank through a pipeline; the second liquid outlet channel is connected to the overflow groove through a pipeline; a first sealing ring is arranged on the outer periphery of the upper ends of the first liquid inlet channel and the first liquid outlet channel; between the fixed disk and the rotating disk, a second sealing ring and a third sealing ring are coaxially arranged on the outer and inner sides of the first sealing ring.

[0011] Furthermore, a liquid level sensor is also arranged in the overflow tank.

[0012] Furthermore, it also includes a sealing conductive member and a rotating connecting member; an overflow groove connected to the opening is formed on the outer side of the liquid storage tank; the first liquid channel includes a first liquid inlet channel and a first liquid outlet channel; the sealing conductive member is sealingly connected to the fixed disk, and a third liquid inlet channel and a third liquid outlet channel connecting the first liquid inlet channel and the first liquid outlet channel are arranged therein; the rotating connecting member is connected to the rotating disk, and the cover is arranged outside the sealing conductive member, and realizes a side rotation seal with the sealing conductive member; the second liquid channel includes a fourth liquid inlet channel and a fourth liquid outlet channel arranged on the side wall of the rotating connecting member; when the rotating disk is rotated to rotate the objective lens with the liquid storage tank to the observation position, the fourth liquid inlet channel and the fourth liquid outlet channel are just sealed and connected with the third liquid inlet channel and the third liquid outlet channel.

[0013] Furthermore, a bearing member is arranged between the top of the sealing conductive member and the rotary connecting member.

[0014] Furthermore, it is characterized in that it also includes a driving mechanism, which includes a driving disk arranged around the outer peripheral side of the rotating disk and a shifting rod driven by a motor; grooves adapted to the shifting rod are arranged at intervals on the outer peripheral wall of the driving disk.

[0015] Furthermore, it also includes a limiting spring piece; a plurality of spherical protrusions are evenly distributed along the circumferential direction on the lower end surface of the rotating disk; one end of the limiting spring piece is fixed on the fixed disk, and the other end is supported under the spherical protrusion; a positioning groove matching the spherical protrusion is provided on the limiting spring piece, and two guide inclined surfaces are provided on both sides of the positioning groove.

[0016] Furthermore, the positioning groove is in a concave triangular shape.

[0017] Furthermore, a magnet is arranged on the specific groove, and a Hall limit sensor is arranged on the lever.

[0018] The present invention also provides a microscope, comprising an objective lens converter, wherein the objective lens converter is the objective lens converter with integrated liquid dispensing function.

[0019] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0020] The present invention provides an objective lens converter with an integrated liquid distribution function, wherein a first liquid channel which can be connected to an external pump body is arranged on a fixed disk, a second liquid channel which is connected to a liquid storage tank on the objective lens is arranged on a rotating disk, and the rotating disk can be sealed and rotated on the fixed disk, and when an eyepiece which needs to be immersed in liquid is rotated to an observation position, the second liquid channel is synchronously rotated to a position corresponding to the first liquid channel to achieve communication, because a pipeline between the second liquid channel and the liquid storage tank is synchronously rotated with the rotating disk, winding of the pipeline is avoided; and the first liquid channel is connected to an external pump body through a pipeline, and the weight of the objective lens converter is not increased, and the structure is simple and maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic structural diagram of an objective lens converter with integrated liquid dispensing function according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the exploded structure of an objective lens converter with integrated liquid dispensing function according to an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the cross-sectional structure of an objective lens converter with integrated liquid distribution function according to an embodiment of the present invention Figure 1 ;

[0025] Figure 4 Schematic diagram of the cross-sectional structure of an objective lens converter with integrated liquid distribution function according to an embodiment of the present invention Figure 2 ;

[0026] Figure 5 is a schematic structural diagram of an objective lens converter with integrated liquid dispensing function according to another embodiment of the present invention;

[0027] Figure 6 is a schematic cross-sectional structural diagram of an objective lens converter with integrated liquid dispensing function according to another embodiment of the present invention;

[0028] Figure 7It is a schematic structural diagram of a rotary connector of an objective lens converter with integrated liquid distribution function according to another embodiment of the present invention;

[0029] Figure 8 The schematic diagram of the assembly structure of the drive mechanism of the objective lens converter with integrated liquid dispensing function according to the embodiment of the present invention is as follows Figure 1 ;

[0030] Fig. 9 The schematic diagram of the assembly structure of the drive mechanism of the objective lens converter with integrated liquid dispensing function according to the embodiment of the present invention is as follows Figure 2 ;

[0031] Fig.10 It is a cross-sectional schematic diagram of a partial assembly structure of a drive mechanism of an objective lens converter with integrated liquid dispensing function according to an embodiment of the present invention;

[0032] Icons: fixed disk 1, rotating disk 2, objective lens 3, outer shell 4, liquid storage tank 5, overflow tank 6, first liquid inlet channel 7, first liquid outlet channel 8, second liquid inlet channel 9, second liquid outlet channel 10, first sealing ring 11, second sealing ring 12, third sealing ring 13, sealing chamber 14, sealing conductive part 15, rotary connecting part 16, bearing part 17, third liquid inlet channel 18, third liquid outlet channel 19, fourth liquid inlet channel 20, fourth liquid outlet channel 21, driving disk 22, motor 23, lever 24, groove 25, limiting spring piece 26, spherical protrusion 27, positioning groove 28, base 29. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0034] Example

[0035] Combination Figures 1 to 10 As shown, this embodiment provides an objective lens 3 converter with integrated liquid distribution function, comprising a fixed disk 1, a rotating disk 2 rotatably arranged on the fixed disk 1, and a plurality of objective lenses 3 arranged at intervals on the rotating disk 2;

[0036] The fixed disk 1 is provided with a first liquid channel that can be connected to an external pump body; the rotating disk 2 is provided with at least one second liquid channel; a rotating seal of the end surface is formed between the fixed disk 1 and the rotating disk 2;

[0037] An outer shell 4 is provided on at least one of the objective lenses 3, and an upper opening liquid storage tank 5 is formed between the outer shell 4 and at least the upper observation end of the objective lens 3; the second liquid channel is connected with the liquid storage tank 5 through a pipeline; when the rotating disk 2 is rotated to rotate the objective lens 3 with the liquid storage tank 5 to the observation position, the second liquid channel is sealed and connected with the first liquid channel.

[0038] A first liquid channel connected to an external pump body is provided on the fixed disk 1, and a second liquid channel connected to a liquid storage tank 5 on the objective lens 3 is provided on the rotating disk 2. The rotating disk 2 can be sealed and rotated on the fixed disk 1. When the eyepiece that needs to be immersed in liquid is rotated to the observation position, the second liquid channel is synchronously rotated to a position corresponding to the first liquid channel to achieve communication. Since the pipeline between the second liquid channel and the liquid storage tank 5 rotates synchronously with the rotating disk 2, entanglement of the pipeline is avoided; and the first liquid channel is connected to the external pump body through the pipeline, and the weight of the objective lens 3 converter will not be increased. The structure is simple and maintenance is convenient.

[0039] In this embodiment, if Figures 1 to 4 As shown, the rotating disk 2 is provided with a plurality of holes for installing the objective lenses 3 at intervals; the rotating disk 2 is provided on the upper side of the fixed disk 1, and can rotate along the axis of the fixed disk 1 to rotate the objective lenses 3 to be used to the observation position. The following is a specific description taking the case where two objective lenses 3 need to be observed by immersion as an example.

[0040] In this embodiment, the fixed disk 1 is provided with a first liquid inlet channel 7 that can be connected to an external liquid inlet pump body, and a first liquid outlet channel 8 that can be connected to an external liquid outlet pump body; the rotating disk 2 includes two sets of the second liquid channels having a second liquid inlet channel 9 and a second liquid outlet channel 10. The second liquid inlet channel 9 is connected to the liquid storage tank 5 through a pipeline; the second liquid outlet channel 10 is connected to the overflow tank 6 through a pipeline. A first sealing ring 11 is provided on the outer periphery of the upper ends of the first liquid inlet channel 7 and the first liquid outlet channel 8; between the fixed disk 1 and the rotating disk 2, a second sealing ring 12 and a third sealing ring 13 are coaxially provided and are placed on the outer and inner sides of the first sealing ring 11. That is, an annular sealed chamber 14 is formed between the second sealing ring 12 and the third sealing ring 13. When the rotating disk 2 rotates, the second liquid inlet channel 9 and the second liquid outlet channel 10 rotate in the sealed chamber 14 to prevent liquid from overflowing from the sealed chamber 14; when corresponding to the first liquid inlet channel 7 and the first liquid outlet channel 8, the conduction of the entire pipeline is achieved; at this time, the external liquid inlet pump body can be operated to inject liquid into the liquid storage tank 5, and then the upper lens of the objective lens 3 is immersed in liquid.

[0041] In this embodiment, an overflow groove 6 connected to the opening is formed on the outside of the liquid storage tank 5 to prevent the liquid overflowing from the liquid storage tank 5 from directly dripping onto the objective lens 3 or the stage. The liquid in the overflow groove 6 can be discharged through a liquid outlet pump body. Preferably, a liquid level sensor is also provided in the overflow groove 6, which is electrically connected to the liquid outlet pump body. When it is detected that the liquid in the overflow groove 6 is stored to a certain height, the liquid outlet pump body is opened to discharge the liquid in the overflow groove 6.

[0042] The second liquid inlet channel 9 and the second liquid outlet channel 10 of the same group are connected to the liquid storage tank 5 and the overflow tank 6 on the same objective lens 3 through pipelines; the pipelines rotate synchronously with the rotating disk 2 to avoid the situation where the pipelines are entangled. At the same time, the first liquid inlet channel 7 and the first liquid outlet channel 8 are connected to the external pump body through pipelines, which does not increase the weight of the objective lens 3 converter, nor does it increase the rotation burden of the rotating disk 2. The structure is simple and easy to maintain.

[0043] In another embodiment, if Figures 5 to 7As shown, the objective lens 3 converter with integrated liquid distribution function also includes a sealing conductive member 15 and a rotary connecting member 16; an overflow groove 6 connected to the opening is formed on the outer side of the liquid storage tank 5; a first liquid inlet channel 7 connected to an external liquid inlet pump body and a first liquid outlet channel 8 connected to an external liquid outlet pump body are provided on the fixed disk 1; the sealing conductive member 15 is sealed and connected to the fixed disk 1, and a third liquid inlet channel 18 and a third liquid outlet channel 19 connected to the first liquid inlet channel 7 and the first liquid outlet channel 8 are provided therein; The rotary connector 16 is fixedly connected to the rotating disk 2, and is covered outside the sealing conductive member 15, and realizes a lateral rotation seal with the sealing conductive member 15; a bearing member 17 is arranged between the top of the sealing conductive member 15 and the rotary connector 16; two groups of the second liquid channels having a fourth liquid inlet channel 20 and a fourth liquid outlet channel 21 are arranged on the side wall of the rotary connector 16; the fourth liquid inlet channel 20 and the fourth liquid outlet channel 21 are respectively connected to the liquid storage tank 5 and the overflow tank 6 through the pipeline. When the rotating disk 2 is rotated to rotate the objective lens 3 having the liquid storage tank 5 to the observation position, the fourth liquid inlet channel 20 and the fourth liquid outlet channel 21 are just sealed and connected with the third liquid inlet channel 18 and the third liquid outlet channel 19.

[0044] Similarly, the fourth liquid inlet channel 20 and the fourth liquid outlet channel 21 of the same group are connected to the liquid storage tank 5 and the overflow tank 6 on the same objective lens 3 through pipelines; the pipelines rotate synchronously with the rotating disk 2 to avoid the situation where the pipelines are entangled. At the same time, the first liquid inlet channel 7 and the first liquid outlet channel 8 are connected to the external pump body through pipelines, which does not increase the weight of the objective lens 3 converter, nor does it increase the rotation burden of the rotating disk 2. Its structure is simple and easy to maintain.

[0045] Based on the above embodiments, Figures 8 to 10As shown, it further includes a driving mechanism, which includes a driving disk 22 arranged around the outer peripheral side of the rotating disk 2, and a lever 24 driven by a motor 23; grooves 25 adapted to the lever 24 are arranged at intervals on the outer peripheral wall of the driving disk 22. The lever 24 is driven to rotate by the motor 23, and after the lever 24 rotates to engage with the groove 25, it drives the rotating disk 2 to rotate. In this embodiment, it also includes a limiting spring piece 26; a plurality of spherical protrusions 27 are evenly distributed on the lower end surface of the rotating disk 2 along the circumferential direction; one end of the limiting spring piece 26 is fixed on the fixed disk 1, and the other end is received under the spherical protrusion 27; a positioning groove 28 matched with the spherical protrusion 27 is arranged on the limiting spring piece 26, and two sides of the positioning groove 28 have two guiding inclined surfaces. Of course, the spherical protrusion 27 can also be embedded in the ball bearing on the lower end surface of the rotating disk 2 in time, which can better guide the sliding on the guiding inclined surface.

[0046] It should be noted that when each of the spherical protrusions 27 rotates to the positioning groove 28, a corresponding objective lens 3 rotates to the observation position.

[0047] The motor 23 drives the lever 24 to rotate. After the lever 24 pushes the positioning groove disk to rotate, when it rotates to the spherical protrusion 27, it will push up the limiting spring piece 26. At this time, the lever 24 pushes the rotating disk 2 to continue rotating; when the spherical protrusion 27 approaches the positioning groove 28, the lever 24 rotates and gradually disengages from the groove 25, and the driving force gradually decreases. Due to the inertia of the rotating disk 2 itself, the guiding slope of the positioning groove 28, and the elastic pressure of the limiting spring piece 26, the spherical protrusion 27 stably enters the positioning groove 28 to achieve precise positioning. Compared with similar transmission schemes such as gears, it is easier to rotate accurately into place.

[0048] Preferably, the positioning groove 28 is in a concave triangular shape, which has a better guiding effect and enables the spherical protrusion 27 to better enter the positioning groove 28 .

[0049] Of course, in this embodiment, a base 29 is also included to support and fix the fixing seat and fix the objective lens 3 converter on the microscope.

[0050] In other preferred embodiments, a magnet may be further provided in the specific groove 25, and a Hall limit sensor may be provided on the lever 24; when the lever 24 matches with the specific groove 25 to drive the rotating disk 2 to rotate, the Hall limit sensor senses a change in the magnetic field, and the motor 23 stops operating after the lever 24 moves away from the specific groove 25, at which time there is an observation position when the objective lens 3 rotates.

[0051] The present invention also provides a microscope, comprising an objective lens 3 converter, wherein the objective lens 3 converter is the objective lens 3 converter with integrated liquid dispensing function.

[0052] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Claims

1. An objective lens converter with integrated liquid distribution function, comprising a fixed disk, a rotating disk rotatably arranged on the fixed disk, and a plurality of objective lenses arranged at intervals on the rotating disk; characterized in that: The fixed disk is provided with a first liquid channel that can communicate with an external pump body; the rotating disk is provided with at least one second liquid channel; and a rotating seal of an end surface is formed between the fixed disk and the rotating disk; At least one of the objective lenses is provided with an outer shell, and a liquid storage tank with an upper opening is formed between the outer shell and at least the upper observation end of the objective lens; the second liquid channel is connected to the liquid storage tank through a pipeline; when the rotating disk is rotated to rotate the objective lens with the liquid storage tank to the observation position, the second liquid channel is exactly connected to the first liquid channel in a sealed manner.

2. The objective lens converter with integrated liquid dispensing function according to claim 1, characterized in that: An overflow groove connected to the opening is formed on the outer side of the liquid storage tank; the first liquid channel includes a first liquid inlet channel and a first liquid outlet channel; the second liquid channel includes a second liquid inlet channel and a second liquid outlet channel; the second liquid inlet channel is connected to the liquid storage tank through a pipeline; the second liquid outlet channel is connected to the overflow groove through a pipeline; a first sealing ring is arranged on the outer periphery of the upper ends of the first liquid inlet channel and the first liquid outlet channel; between the fixed disk and the rotating disk, a second sealing ring and a third sealing ring are coaxially arranged on the outer side and the inner side of the first sealing ring.

3. The objective lens converter with integrated liquid dispensing function according to claim 2, characterized in that: A liquid level sensor is also arranged in the overflow tank.

4. The objective lens converter with integrated liquid dispensing function according to claim 1, characterized in that: It also includes a sealing conductive member and a rotating connecting member; an overflow groove connected to the opening is formed on the outer side of the liquid storage tank; the first liquid channel includes a first liquid inlet channel and a first liquid outlet channel; the sealing conductive member is sealingly connected to the fixed disk, and a third liquid inlet channel and a third liquid outlet channel connecting the first liquid inlet channel and the first liquid outlet channel are arranged therein; the rotating connecting member is connected to the rotating disk, and the cover is arranged outside the sealing conductive member, and realizes a side rotation seal with the sealing conductive member; the second liquid channel includes a fourth liquid inlet channel and a fourth liquid outlet channel arranged on the side wall of the rotating connecting member; the fourth liquid inlet channel and the fourth liquid outlet channel are connected to the liquid storage tank and the overflow groove respectively through pipelines; when the rotating disk is rotated to rotate the objective lens with the liquid storage tank to the observation position, the fourth liquid inlet channel and the fourth liquid outlet channel are just sealed and connected with the third liquid inlet channel and the third liquid outlet channel.

5. The objective lens converter with integrated liquid dispensing function according to claim 4, characterized in that: A bearing member is arranged between the top of the sealing conductive member and the rotary connecting member.

6. The objective lens converter with integrated liquid dispensing function according to any one of claims 1 to 5, characterized in that: It also includes a driving mechanism, which includes a driving disk arranged around the outer peripheral side of the rotating disk and a shifting rod driven by a motor; grooves adapted to the shifting rod are arranged at intervals on the outer peripheral wall of the driving disk.

7. The objective lens converter with integrated liquid dispensing function according to claim 6, characterized in that: It also includes a limiting spring piece; a plurality of spherical protrusions are evenly distributed on the lower end surface of the rotating disk along the circumferential direction; one end of the limiting spring piece is fixed on the fixed disk, and the other end is supported under the spherical protrusion; a positioning groove matching the spherical protrusion is provided on the limiting spring piece, and two guide inclined surfaces are provided on both sides of the positioning groove.

8. The objective lens converter with integrated liquid dispensing function according to claim 7, characterized in that: The positioning groove is in a concave triangular shape.

9. The objective lens converter with integrated liquid dispensing function according to claim 7, characterized in that: A magnet is arranged on the specific groove, and a Hall limit sensor is arranged on the shifting rod.

10. A microscope, comprising an objective lens converter, characterized in that: The objective lens converter is an objective lens converter with integrated liquid dispensing function as described in any one of claims 1 to 9.

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