Objective lens turret for microscope, and microscope

Abstract

An objective lens turret for a microscope, and a microscope. The objective lens turret for a microscope comprises a base (1) and a turntable (2) rotatably connected to the base (1), wherein the base (1) is provided with a light passage hole (11), the turntable (2) is provided with a plurality of objective lens assembly holes (21), and the light passage hole (11) can directly face any objective lens assembly hole (21). The objective lens turret further comprises a rotating connector (3) fixedly connected to the turntable (2), a driving unit (7) arranged coaxially with the rotating connector (3) and configured to drive the rotating connector (3) to rotate, a grating scale (4) fixedly connected to the rotating connector (3), and a grating scale reading head (5) fixedly connected to the base (1) and arranged on the periphery of the grating scale (4), wherein the driving unit (7) drives the rotating connector (3) to rotate and drives the grating scale (4) to rotate, and the grating scale reading head (5) is configured to measure the angle of rotation of the grating scale (4). The synchronous rotation of the grating scale (4) and the turntable (2) can be realized by means of the rotating connector (3), and the grating scale reading head (5) can measure the angles of rotation of the grating scale (4) and the turntable (2) to allow the objective lens assembly holes (21) to be positioned such that an objective lens and the light passage hole (11) directly face each other, full closed-loop feedback of the position can be realized, and the positioning accuracy is higher.

Description

A microscope objective stage and microscope Technical Field

[0001] This invention belongs to the field of microscope technology, and particularly relates to a microscope objective stage and microscope. Background Technology

[0002] A microscope is an optical instrument used to observe tiny objects. Through the optical design of the objective lens, light from the observed sample can be focused to form a clear image. Whether observing the same sample or different samples, different magnification effects may be required; therefore, related technologies include microscope objective stages. During observation, the stage can be rotated to select and change objectives with different magnifications. However, in the microscope objective stages of related technologies, the positioning unit uses a mechanical positioning method where a spring fits into a groove, which cannot achieve precise positioning.

[0003] Therefore, it is necessary to provide a new microscope objective stage. Technical issues

[0004] The purpose of this invention is to provide a microscope objective stage that can solve the technical problem of inability to achieve precise positioning in related technologies. Technical solutions

[0005] The technical solution of the present invention is as follows:

[0006] A first aspect provides a microscope objective stage, including a base and a turntable rotatably connected to the base. The base has a light-transmitting hole, and the turntable has a plurality of objective mounting holes, the light-transmitting hole being directly aligned with any of the objective mounting holes. The microscope objective stage further includes a rotating connector fixedly connected to the turntable, a drive unit coaxially arranged with the rotating connector and used to drive the rotating connector to rotate, a grating ruler fixedly connected to the rotating connector, and a grating ruler reading head fixedly connected to the base and disposed on the outer periphery of the grating ruler. The drive unit drives the rotating connector to rotate and causes the grating ruler to rotate, and the grating ruler reading head is used to detect the rotation angle of the grating ruler.

[0007] Furthermore, in some embodiments, the driving unit includes a magnet coaxially sleeved outside the rotating connector and fixedly connected to the rotating connector, and a coil disposed on the outer periphery of the magnet and fixedly assembled to the base. The coil is used to drive the magnet to rotate and drive the rotating connector to rotate.

[0008] Furthermore, in some embodiments, the base includes a main body connected to the turntable and a cover portion protruding from the main body portion away from the turntable. The light-transmitting hole penetrates the cover portion and the main body portion. The main body portion also has a connecting hole penetrating the main body portion. The cover portion also has a connecting cavity communicating with the connecting hole. The connecting hole and the connecting cavity are both isolated from the light-transmitting hole. The rotating connector passes at least partially through the connecting hole and extends into the connecting cavity. The grating ruler and the grating ruler reading head are located within the connecting cavity.

[0009] Furthermore, in some embodiments, the outer periphery of the base is provided with a first limiting groove with an opening facing the turntable, and the outer periphery of the turntable is provided with a second limiting groove with an opening facing the base. The first limiting groove and the second limiting groove are opposite to each other and spaced apart to form a limiting space; the microscope objective stage also includes a support member disposed in the limiting space.

[0010] Furthermore, in some embodiments, the turntable includes a mounting portion connected to the base and a connecting groove extending from the mounting portion away from the base. The connecting groove communicates with the connecting hole and its opening faces the connecting hole. One end of the rotating connector near the turntable is fixed in the connecting groove. The plurality of objective lens mounting holes are disposed in the mounting portion and surround the connecting groove. The microscope objective lens turntable also includes a damping device located in the connecting groove and sleeved on the outer periphery of the rotating connector.

[0011] Furthermore, in some embodiments, the drive unit is disposed within the connecting groove and located between the grating ruler and the damping device.

[0012] Furthermore, in some embodiments, the microscope objective stage further includes a grating encoder disposed within the connecting cavity and fixed to the base; the grating encoder is used to read the rotation angle data of the grating and feed it back to an external controller.

[0013] Furthermore, in some embodiments, the microscope objective stage further includes a boss fixedly connected to the base on the side opposite to the turntable, the boss being provided with a mounting hole communicating with the light-transmitting hole, and the boss being used for connecting to external devices.

[0014] Furthermore, in some embodiments, the grating ruler and the rotating connector are connected by screws, a tongue-and-groove joint, or welding.

[0015] Furthermore, in some embodiments, the turntable and the rotating connector are connected by screws, a tongue-and-groove joint, or welding.

[0016] Furthermore, in some embodiments, the grating ruler reading head and the base are connected by screws, a tongue-and-groove joint, or welding.

[0017] A second aspect of the present invention provides a microscope, including a plurality of objectives and an objective stage as described above, wherein the plurality of objectives are detachably connected to a plurality of objective mounting holes. Beneficial effects

[0018] The beneficial effects of this invention are as follows: In this invention, the turntable can rotate relative to the base, so that the light-transmitting hole on the base can be aligned with any one of the objective lens mounting holes on the turntable. Thus, when an objective lens is mounted in the objective lens mounting hole, an optical path can be formed between the light-transmitting hole and the objective lens to achieve the magnification function of the objective lens. Furthermore, multiple objective lens mounting holes can be matched with different objective lenses, thereby meeting the needs of different magnification effects. In addition, the drive unit can drive the rotating connector to rotate, thereby driving the turntable to rotate, achieving automation. Moreover, the grating ruler and the rotating connector are fixedly connected; therefore, the rotating connector enables synchronous rotation of the grating ruler and the turntable. Simultaneously, a grating ruler reading head is fixedly connected to the base. Therefore, when the drive unit drives the grating ruler and the turntable to rotate synchronously through the rotating connector, the grating ruler reading head can detect the rotation angle of the grating ruler and the turntable, thereby enabling the positioning of the objective lens mounting hole on the turntable, ultimately ensuring that the objective lens and the light-transmitting hole are aligned. Compared with mechanical positioning methods in related technologies, the embodiments of the present invention can achieve full closed-loop feedback of position and have higher positioning accuracy. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural diagram of the microscope objective stage according to an embodiment of the present invention;

[0020] Figure 2 is a cross-sectional view of the microscope objective stage along line A-A in Figure 1 according to an embodiment of the present invention;

[0021] Figure 3 is a three-dimensional exploded view of the microscope objective stage according to an embodiment of the present invention.

[0022] In the diagram: 1. Base; 11. Light-transmitting hole; 12. Main body; 121. Connecting hole; 13. Cover; 131. Connecting cavity; 14. First limiting groove; 15. Boss; 151. Mounting hole; 2. Turntable; 21. Objective lens mounting hole; 22. Mounting part; 23. Connecting groove; 24. Second limiting groove; 3. Rotating connector; 4. Grating ruler; 5. Grating ruler reading head; 51. Reading head signal line; 6. Grating ruler encoder; 7. Drive unit; 71. Magnet; 72. Coil; 73. Power line; 8. Damping device; 9. Support. Embodiments of the present invention

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to Figures 1 to 3. The first aspect of the present invention provides a microscope objective stage, including a base 1 and a turntable 2 rotatably connected to the base 1. The base 1 has a light-transmitting hole 11, and the turntable 2 has a plurality of objective mounting holes 21. The light-transmitting hole 11 can be directly aligned with any objective mounting hole 21. The objective stage also includes a rotating connector 3 fixedly connected to the turntable 2, a drive unit 7 coaxially arranged with the rotating connector 3 and used to drive the rotating connector 3 to rotate, a grating ruler 4 fixedly connected to the rotating connector 3, and a grating ruler reading head 5 fixedly connected to the base 1 and disposed on the outer periphery of the grating ruler 4. The drive unit 7 drives the rotating connector 3 to rotate and drives the grating ruler 4 to rotate. The grating ruler reading head 5 is used to detect the rotation angle of the grating ruler 4.

[0025] In this embodiment of the invention, the turntable 2 can rotate relative to the base 1, so that the light-transmitting hole 11 on the base 1 can be directly aligned with any one of the objective lens mounting holes 21 on the turntable 2. Thus, when an objective lens is mounted in the objective lens mounting hole 21, an optical path can be formed between the light-transmitting hole 11 and the objective lens to achieve the magnification function of the objective lens. Furthermore, multiple objective lens mounting holes 21 can be matched with different objective lenses, thereby meeting the needs of different magnification effects. In addition, the drive unit 7 can drive the rotating connector 3 to rotate, thereby driving the turntable 2 to rotate through the rotating connector 3, achieving automation. Moreover, the grating ruler 4 and the rotating connector 3 are fixedly connected; therefore, the synchronous rotation of the grating ruler 4 and the turntable 2 can be achieved through the rotating connector 3. Simultaneously, a grating ruler reading head 5 is fixedly connected to the base 1. Therefore, when the drive unit 7 drives the grating ruler 4 and the turntable 2 to rotate synchronously through the rotating connector 3, the grating ruler reading head 5 can detect the rotation angle of the grating ruler 4 and the turntable 2, thereby enabling the positioning of the objective lens mounting hole 21 on the turntable 2, ultimately ensuring that the objective lens and the light transmission hole 11 are aligned. Compared with the mechanical positioning method in related technologies, this embodiment of the invention can achieve full closed-loop position feedback and has higher positioning accuracy.

[0026] Furthermore, the embodiments of the present invention do not limit the method of fixing and assembling the grating ruler 4 and the rotating connector 3. Exemplarily, the grating ruler 4 and the rotating connector 3 are connected by screws, a male-female joint, or welding.

[0027] The embodiments of the present invention do not limit the method of fixing and assembling the turntable 2 and the rotating connector 3. Exemplarily, the turntable 2 and the rotating connector 3 are connected by screws, a male-female joint, or welding.

[0028] The embodiments of the present invention do not limit the method of fixing and assembling the grating ruler reading head 5 and the base 1. Exemplarily, the grating ruler reading head 5 and the base 1 are connected by screws, a tongue-and-groove joint, or welding.

[0029] Furthermore, in some embodiments, the drive unit 7 includes a magnet 71 coaxially sleeved outside the rotating connector 3 and fixedly connected to the rotating connector 3, and a coil 72 disposed on the outer periphery of the magnet 71 and fixedly assembled on the base 1. The coil 72 is used to drive the magnet 71 to rotate and drive the rotating connector 3 to rotate.

[0030] Specifically, coil 72 can be energized, generating a magnetic field. When energized, coil 72 is fixed and interacts with magnet 71, driving magnet 71 to rotate. This, in turn, drives rotating connector 3 to rotate, which in turn drives turntable 2 and grating ruler 4 to rotate synchronously. Grating ruler reading head 5 can then detect the rotation angle, enabling positioning of the objective lens mounting hole 21 on turntable 2, ultimately ensuring the objective lens and light transmission aperture 11 are aligned. Furthermore, by coaxially sleeved magnet 71 outside the rotating connector, the overall space is improved, making the structure more compact and reducing size.

[0031] Furthermore, in some embodiments, the base 1 includes a main body 12 connected to the turntable 2 and a cover 13 protruding from the main body 12 away from the turntable 2. The light-transmitting hole 11 penetrates the cover 13 and the main body 12. The main body 12 also has a connecting hole 121 penetrating the main body 12. The cover 13 also has a connecting cavity 131 communicating with the connecting hole 121. The connecting hole 121 and the connecting cavity 131 are both isolated from the light-transmitting hole 11. The rotating connector 3 passes at least partially through the connecting hole 121 and extends into the connecting cavity 131. The grating ruler 4 and the grating ruler reading head 5 are located in the connecting cavity 131.

[0032] Specifically, the main body 12 of the base 1 is connected to the turntable 2, and the main body 12 has a through connecting hole 121. The connecting cavity 131 of the cover 13 has an opening, and the connecting cavity 131 communicates with the connecting hole 121 through the opening. At least a portion of the rotating connector 3 extends into the connecting cavity 131 from the connecting hole 121, thereby determining the installation position of the rotating connector 3 on the base 1. The grating ruler 4 and the grating ruler reading head 5 are located in the connecting cavity 131, thereby determining the installation position of the grating ruler 4 and the grating ruler reading head 5 on the base 1. In addition, the grating ruler reading head 5 has a reading head signal line 51 leading out. Therefore, the cover 13 can also have a clearance hole communicating with the connecting cavity 131, so that the reading head signal line 51 can be exposed to the outside through the clearance hole for connection with the outside. In addition, the connecting hole 121 and the connecting cavity 131 are arranged in isolation from the light-transmitting hole 11, so that the rotating connecting piece 3, the grating ruler 4 and the grating ruler reading head 5 on the base 1 will not affect the light-transmitting hole 11, and the light-transmitting hole 11 can work normally.

[0033] Furthermore, in some embodiments, the turntable 2 includes a mounting portion 22 connected to the base 1 and a connecting groove 23 extending from the mounting portion 22 away from the base 1. The connecting groove 23 communicates with the connecting hole 121 and its opening faces the connecting hole 121. One end of the rotating connector 3 near the turntable 2 is fixed in the connecting groove 23. A plurality of objective lens mounting holes 21 are provided in the mounting portion 22 and surround the connecting groove 23. The microscope objective lens turntable also includes a damping device 8 located in the connecting groove 23 and sleeved on the outer periphery of the rotating connector 3.

[0034] Specifically, the mounting portion 22 of the turntable 2 can be connected to the base 1, and the connecting groove 23 extending from the mounting portion 22 of the turntable 2 can communicate with the connecting hole 121 through the opening, so that the rotating connector 3 can be partially located in the connecting hole 121 and the connecting cavity 131, and the other part located in the connecting groove 23 and fixedly connected to the connecting groove 23, thereby determining the installation position of the rotating connector 3 on the turntable 2 and the base 1. At the same time, the damping device 8 is also located in the connecting groove 23, thereby determining the installation position of the damping device 8 on the turntable 2. Furthermore, the side of the connecting groove 23 of the turntable 2 away from the connecting hole 121 of the mounting portion 22 of the base 1 is a closed side, and the side of the connecting cavity 131 of the cover portion 13 away from the connecting hole 121 of the mounting portion 22 is also a closed side. In this way, the connecting groove 23, the connecting hole 121, and the connecting cavity 131 can be enclosed together to form a closed receiving space, so that the rotating connector 3 and the damping device 8 are received in the closed receiving space, thereby providing protection for the rotating connector 3 and the damping device 8.

[0035] In addition, the objective lens mounting hole 21 is arranged around the connecting groove 23 so that the objective lens mounting hole 21 and the rotating connector 3 do not affect each other. Furthermore, when the rotating connector 3 drives the turntable 2 to rotate, the position of each objective lens mounting hole 21 in the rotation direction can be changed, thereby enabling the rotating turntable 2 to change the objective lens.

[0036] In addition, a damping device 8 is provided in the connecting groove 23 and sleeved on the outer periphery of the rotating connector 3. In this way, when the rotating connector 3 drives the turntable 2 to rotate, the damping device 8 can apply resistance to the rotation process, thereby suppressing vibration and position fluctuation.

[0037] For example, the damping device 8 can be a friction contact type rotary damper or a magnetic non-contact type rotary damper, etc.

[0038] In some specific embodiments, the objective lens mounting hole 21 is provided on the mounting portion 22.

[0039] Furthermore, in some embodiments, the drive unit 7 is disposed within the connecting groove 23 and located between the grating ruler 4 and the damping device 8.

[0040] Specifically, the drive unit 7 is coaxially arranged with the rotating connector 3, and the drive unit 7 is located in the connecting groove 23. At the same time, the drive unit 7 is also located between the grating ruler 4 and the damping device 8. In this way, the relative positions of the base 1, the grating ruler 4, the grating ruler reading head 5, the rotating connector 3, the drive unit 7, the damping device 8 and the turntable 2 can be determined. This allows the grating ruler 4, the grating ruler reading head 5, the rotating connector 3, the drive unit 7 and the damping device 8 to be housed in the closed housing space formed by the base 1 and the turntable 2. This makes the overall structure compact, improves space utilization and reduces size.

[0041] In some specific embodiments, the drive unit 7 includes a magnet 71 and a coil 72. The magnet 71 is coaxially sleeved on the outside of the rotating connector 3, and the coil 72 is disposed on the outer periphery of the magnet 71. The magnet 71 and the coil 72 are disposed within the connecting groove 23 of the turntable 2. Furthermore, the coil 72 and the base 1 can be fixedly connected by means of screws, interlocking joints, or welding. In addition, a power line 73 is led out from the coil 72. The power line 73 can be led out to the connecting cavity 131 of the cover portion 13. Simultaneously, a clearance hole can be provided in the cover portion 13, allowing the power line 73 to ultimately be exposed to the outside for electrical connection with the outside.

[0042] Furthermore, in some embodiments, the outer periphery of the base 1 is provided with a first limiting groove 14 with an opening facing the turntable 2, and the outer periphery of the turntable 2 is provided with a second limiting groove 24 with an opening facing the base 1. The first limiting groove 14 and the second limiting groove 24 are opposite to each other and spaced apart to form a limiting space; the microscope objective stage also includes a support member 9 disposed in the limiting space.

[0043] Specifically, the support member 9 is a rigid structure. The first limiting groove 14 and the second limiting groove 24 can be in the shape of an "[", with their openings facing each other, forming a limiting space between the two limiting grooves. The two limiting grooves are spaced apart, so that the limiting space includes the internal space defined by the two limiting grooves and the gap between them. The support member 9 is located within this limiting space. With this configuration, when the drive unit 7 drives the turntable 2 to rotate relative to the base 1, the support member 9 will not interfere with the relative rotation of the turntable 2 and the base 1, while also providing support force, allowing the turntable 2 and the base 1 to rotate stably relative to each other under the support of the support member 9. Because the support member 9 is a rigid structure, compared with the structure using inner ring bearings and outer ring ball bearings in related technologies, the turntable 2 will not produce a radial deflection angle when rotating, which can strictly guarantee positional accuracy, improve structural rigidity, and enhance structural load-bearing capacity.

[0044] Furthermore, in some embodiments, the microscope objective stage also includes a grating encoder 6 disposed in the connecting cavity 131 and fixed to the base 1; the grating encoder 6 is used to read the rotation angle data of the grating ruler 4 and feed it back to the external controller.

[0045] Specifically, the grating ruler 4 rotates synchronously with the turntable 2 via the rotating connector 3. The grating ruler encoder 6 reads the rotation angle data of the grating ruler 4 and feeds the rotation angle data back to the external controller. The controller can determine whether the turntable 2 has rotated to the correct position based on the difference between the actual data and the set data, that is, whether one of the objective lens mounting holes 21 on the turntable 2 has reached the set position. If it has not reached the set position, the drive unit 7 continues to drive the rotation until the objective lens mounting hole 21 reaches the set position. Based on the positioning of the grating ruler 4 and the grating ruler reader 5, further precise positioning of the microscope objective stage can be achieved.

[0046] Furthermore, in some embodiments, the microscope objective stage also includes a boss 15 fixedly connected to the base 1 on the side opposite to the turntable 2. The boss 15 is provided with a mounting hole 151 that communicates with the light-transmitting hole 11. The boss 15 is used to connect to external devices.

[0047] Specifically, the boss 15 can be a dovetail groove, which can be used to match external equipment, enabling the connection between the entire device and the external equipment. Different external equipment can be matched with different bosses 15, thus allowing the microscope objective stage to be matched with different external equipment, improving its practicality.

[0048] Furthermore, in some specific embodiments, a light-transmitting sleeve is provided on the light-transmitting hole 11 to prevent stray light. The light-transmitting sleeve can serve to prevent stray light from entering the optical path. In addition, a boss 15 is provided on the end of the light-transmitting sleeve away from the turntable 2.

[0049] Furthermore, in some embodiments, the turntable 2 is provided with several adapter rings corresponding one-to-one with the objective lens mounting holes 21. Different adapter rings are used to match different objectives, thereby meeting the needs of various magnifications. When it is necessary to change the objective lens, the turntable 2 can be rotated so that the objective lens mounting hole 21 on the turntable 2, which is the target object, is rotated to a set position so that the objective lens mounting hole 21 is aligned with the light transmission hole 11, and then the required adapter ring and objective lens can be replaced.

[0050] A second aspect of the present invention provides a microscope, including a plurality of objectives and a microscope objective stage, wherein the objectives are detachably connected to the objective mounting hole 21.

[0051] In this embodiment of the invention, different objectives can be mounted on the same microscope objective stage, thereby meeting the needs of various magnifications. Furthermore, since the objective stage is equipped with a grating ruler 4 and a grating ruler reading head 5, when it is necessary to change objectives, when the turntable 2 is rotated so that the turntable 2 and the grating ruler 4 rotate synchronously, the rotation angle can be detected by the grating ruler reading head 5. This allows the objective mounting hole 21 on the turntable 2, which serves as the target object, to rotate to a preset position, thereby achieving high-precision positioning and meeting practical needs.

[0052] The above are merely embodiments of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. A microscope objective stage, comprising a base and a turntable rotatably connected to the base, wherein the base has a light-transmitting hole, and the turntable has a plurality of objective lens mounting holes, the light-transmitting hole being oriented directly towards any one of the objective lens mounting holes; characterized in that, The microscope objective stage also includes a rotating connector fixedly connected to the turntable, a drive unit coaxially arranged with the rotating connector and used to drive the rotating connector to rotate, a grating ruler fixedly connected to the rotating connector, and a grating ruler reading head fixedly connected to the base and disposed on the outer periphery of the grating ruler. The drive unit drives the rotating connector to rotate and drives the grating ruler to rotate. The grating ruler reading head is used to detect the rotation angle of the grating ruler.

2. The microscope objective stage according to claim 1, characterized in that, The driving unit includes a magnet coaxially sleeved outside the rotating connector and fixedly connected to the rotating connector, and a coil disposed on the outer periphery of the magnet and fixedly assembled to the base. The coil is used to drive the magnet to rotate and drive the rotating connector to rotate.

3. The microscope objective stage according to claim 2, characterized in that, The base includes a main body connected to the turntable and a cover portion protruding from the main body portion away from the turntable. The light-transmitting hole penetrates the cover portion and the main body portion. The main body portion also has a connecting hole penetrating the main body portion. The cover portion also has a connecting cavity communicating with the connecting hole. The connecting hole and the connecting cavity are both isolated from the light-transmitting hole. The rotating connector passes at least partially through the connecting hole and extends into the connecting cavity. The grating ruler and the grating ruler reading head are located within the connecting cavity.

4. The microscope objective stage according to claim 1, characterized in that, The base has a first limiting groove with an opening facing the turntable on its outer periphery, and the turntable has a second limiting groove with an opening facing the base on its outer periphery. The first limiting groove and the second limiting groove are opposite to each other and spaced apart to form a limiting space. The microscope objective stage also includes a support member disposed in the limiting space.

5. The microscope objective stage according to claim 3, characterized in that, The turntable includes a mounting portion connected to the base and a connecting groove extending from the mounting portion away from the base. The connecting groove communicates with the connecting hole and its opening faces the connecting hole. One end of the rotating connector near the turntable is fixed in the connecting groove. A plurality of objective lens mounting holes are provided in the mounting portion and arranged around the connecting groove. The microscope objective lens stage also includes a damping device located in the connecting groove and sleeved on the outer periphery of the rotating connector.

6. The microscope objective stage according to claim 5, characterized in that, The drive unit is disposed in the connecting groove and located between the grating ruler and the damping device.

7. The microscope objective stage according to claim 3, characterized in that, The microscope objective stage also includes a grating encoder disposed in the connecting cavity and fixed to the base; the grating encoder is used to read the rotation angle data of the grating and feed it back to the external controller.

8. The microscope objective stage according to claim 1, characterized in that, The microscope objective stage also includes a boss fixedly connected to the base on the side opposite to the turntable. The boss is provided with a mounting hole communicating with the light-transmitting hole, and the boss is used to connect to external devices.

9. The microscope objective stage according to claim 1, characterized in that, The grating ruler and the rotating connector are connected by screws, a tongue-and-groove fit, or welding; and / or The turntable and the rotating connector are connected by screws, a tongue-and-groove fit, or welding; and / or, The grating ruler reading head and the base are connected by screws, concave-convex fittings, or welding.

10. A microscope, characterized in that, It includes a plurality of objectives and a microscope objective stage as described in any one of claims 1 to 9, wherein the plurality of objectives are detachably connected to the plurality of objective mounting holes.

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