Microscope objective lens turntable and microscope

Abstract

The present invention provides a microscope objective turret and a microscope. The microscope objective turret includes a base and a turntable rotatably connected to the base. The base is provided with a light-through hole, and the turntable is provided with a plurality of objective lens assembly holes. The light-through hole can be directly opposite to any objective lens assembly hole. The objective lens turret also includes a rotating connector fixedly connected to the turntable, a driving 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 reader fixedly connected to the base and arranged on the periphery of the grating ruler. The driving unit drives the rotating connector to rotate and drives the grating ruler to rotate, and the grating ruler reader is used to detect the rotation angle of the grating ruler. The synchronous rotation of the grating ruler and the turntable can be achieved by the rotating connector. The grating ruler reader can detect the rotation angle of the grating ruler and the turntable, and can realize the positioning of the objective lens assembly hole so that the objective lens and the light-through hole are directly opposite. Full closed-loop feedback of the position can be achieved, and the positioning accuracy is higher.

Description

[Technical field]

[0001] The invention belongs to the technical field of microscopes, and in particular relates to a microscope objective lens turntable and a microscope. [Background technology]

[0002] A microscope is an optical instrument used to observe tiny objects. Through the optical design of the objective lens, the light of the observed sample can be converged to form a clear image. Whether it is the same observation sample or different observation samples, there may be a need for different magnification effects. Therefore, a microscope objective turret is provided in the related art. When observing, the objective lens of different magnifications can be selected and replaced by rotating the turret. However, for the microscope objective turret in the related art, the positioning unit adopts a mechanical positioning method in which a spring is embedded in a groove, which cannot achieve precise positioning.

[0003] Therefore, it is necessary to provide a new microscope objective lens turret. [Summary of the invention]

[0004] The purpose of the present invention is to provide a microscope objective lens turret that can solve the technical problem that accurate positioning cannot be achieved in the related art.

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

[0006] A first aspect provides a microscope objective turret, comprising a base and a turntable rotatably connected to the base, the base being provided with a light-through hole, the turntable being provided with a plurality of objective lens assembly holes, the light-through hole being directly opposite to any of the objective lens assembly holes; the characteristic being that the microscope objective turret further comprises a rotating connection fixedly connected to the turntable, a driving unit coaxially arranged with the rotating connection and used for driving the rotating connection to rotate, a grating scale fixedly connected to the rotating connection, and a grating scale reader fixedly connected to the base and arranged on the periphery of the grating scale, the driving unit drives the rotating connection to rotate and drives the grating scale to rotate, and the grating scale reader is used for detecting the rotation angle of the grating scale.

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

[0008] Further, in some embodiments, the base includes a main body portion connected to the turntable and a covering portion protruding from the main body portion away from the turntable, the light-through hole passes through the covering portion and the main body portion, the main body portion also has a connecting hole passing through the main body portion, the covering portion also has a connecting cavity connected to the connecting hole, and the connecting hole and the connecting cavity are both isolated from the light-through hole; the rotating connecting member at least partially passes through the connecting hole and penetrates into the connecting cavity, and the grating scale and the grating scale reader are located in the connecting cavity.

[0009] Further, in some embodiments, a first limiting groove opening toward the turntable is formed on the outer peripheral side of the base, and a second limiting groove opening toward the base is formed on the outer peripheral side of the turntable, and the first limiting groove and the second limiting groove are arranged opposite to each other and spaced apart to form a limiting space; the microscope objective turntable also includes a support member arranged in the limiting space.

[0010] Further, 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 is connected to the connecting hole and the opening faces the connecting hole, the end of the rotating connecting member close to the turntable is fixed in the connecting groove, the plurality of objective lens assembly holes are arranged on the mounting portion and around the connecting groove; the microscope objective lens turntable also includes a damping device located in the connecting groove and sleeved on the outer peripheral side of the rotating connecting member.

[0011] Further, in some embodiments, the driving unit is disposed in the connecting groove and is located between the grating scale and the damping device.

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

[0013] Furthermore, in some embodiments, the microscope objective turret further includes a boss fixedly connected to a side of the base facing away from the turntable, the boss is provided with a mounting hole communicating with the light through hole, and the boss is used to connect to an external device.

[0014] Furthermore, in some embodiments, the grating ruler and the rotating connecting member are screw-connected, concave-convex-fittedly connected, or welded.

[0015] Furthermore, in some embodiments, the turntable and the rotating connector are screw-connected, concave-convex-fittedly connected, or welded.

[0016] Furthermore, in some embodiments, the grating scale reading head and the base are connected by screws, concave-convex fitting or welded.

[0017] A second aspect of the present invention provides a microscope, comprising a plurality of objective lenses and the objective lens turret as described above, wherein the plurality of objective lenses are detachably connected to the plurality of objective lens assembly holes.

[0018] The beneficial effect of the present invention is that: in the present invention, the turntable can rotate relative to the base, so that the light-through hole on the base can be directly opposite to any one of the objective lens assembly holes on the turntable, so that when the objective lens is assembled in the objective lens assembly hole, an optical path can be formed between the light-through hole and the objective lens to realize the magnification function of the objective lens. In addition, a plurality of objective lens assembly holes can match different objective lenses, thereby meeting the needs of different magnification effects. In addition, the driving unit can drive the rotating connecting member to rotate, so that the turntable can be driven to rotate by the rotating connecting member to realize automation. In addition, the grating ruler and the rotating connecting member are fixedly connected, so that the synchronous rotation of the grating ruler and the turntable can be realized by the rotating connecting member. At the same time, a grating ruler reader is provided and fixedly connected to the base, so that when the driving unit drives the grating ruler and the turntable to rotate synchronously through the rotating connecting member, the grating ruler reader can detect the rotation angle of the grating ruler and the turntable, so that the objective lens assembly hole on the turntable can be positioned, and finally the objective lens and the light-through hole are directly opposite. Compared with the mechanical positioning method in the related art, the embodiment of the present invention can achieve full closed-loop feedback of the position and has higher positioning accuracy.

Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the microscope objective lens turret according to an embodiment of the present invention;

[0020] Figure 2 The microscope objective lens turret of the embodiment of the present invention is Figure 1 Schematic diagram of the cross section of line AA;

[0021] Figure 3 The figure is a schematic diagram of the three-dimensional exploded structure of the microscope objective lens turret according to an embodiment of the present invention.

[0022] In the figure: 1. base; 11. light hole; 12. main body; 121. connecting hole; 13. covering part; 131. connecting cavity; 14. first limiting groove; 15. boss; 151. mounting hole; 2. turntable; 21. objective lens assembly hole; 22. mounting part; 23. connecting groove; 24. second limiting groove; 3. rotating connecting part; 4. grating scale; 5. grating scale reader; 51. reader signal line; 6. grating scale encoder; 7. drive unit; 71. magnet; 72. coil; 73. power line; 8. damping device; 9. support member. [Specific implementation method]

[0023] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0024] See also Figures 1 to 3 The first aspect of the present invention provides a microscope objective turret, comprising a base 1 and a turntable 2 rotatably connected to the base 1, the base 1 is provided with a light hole 11, and the turntable 2 is provided with a plurality of objective lens assembly holes 21, the light hole 11 can be directly opposite to any objective lens assembly hole 21; the objective turret also includes a rotating connection 3 fixedly connected to the turntable 2, a driving unit 7 coaxially arranged with the rotating connection 3 and used to drive the rotating connection 3 to rotate, a grating scale 4 fixedly connected to the rotating connection 3, and a grating scale reader 5 fixedly connected to the base 1 and arranged on the periphery of the grating scale 4, the driving unit 7 drives the rotating connection 3 to rotate and drives the grating scale 4 to rotate, and the grating scale reader 5 is used to detect the rotation angle of the grating scale 4.

[0025] In an embodiment of the present invention, the turntable 2 can rotate relative to the base 1, so that the light hole 11 on the base 1 can be directly opposite to any one of the objective lens assembly holes 21 on the turntable 2. In this way, when the objective lens is assembled in the objective lens assembly hole 21, an optical path can be formed between the light hole 11 and the objective lens to realize the magnification function of the objective lens. In addition, a plurality of objective lens assembly holes 21 can match different objective lenses, thereby meeting the needs of different magnification effects. In addition, the driving unit 7 can drive the rotating connector 3 to rotate, so that the turntable 2 can be driven to rotate by the rotating connector 3 to achieve automation. In addition, the grating ruler 4 and the rotating connector 3 are fixedly connected, so that the synchronous rotation of the grating ruler 4 and the turntable 2 can be achieved by rotating the connector 3. At the same time, a grating scale reader 5 is fixedly connected to the base 1, so when the driving unit 7 drives the grating scale 4 and the turntable 2 to rotate synchronously by rotating the connecting member 3, the grating scale reader 5 can detect the rotation angle of the grating scale 4 and the turntable 2, so as to realize the positioning of the objective lens assembly hole 21 on the turntable 2, and finally make the objective lens and the light hole 11 face each other. Compared with the mechanical positioning method in the related art, the embodiment of the present invention can realize full closed-loop feedback of the position, and the positioning accuracy is higher.

[0026] In addition, the embodiment of the present invention does not limit the fixing and assembling method of the grating ruler 4 and the rotating connecting member 3. Exemplarily, the grating ruler 4 and the rotating connecting member 3 are screw-connected, concave-convex-fittedly connected, or welded.

[0027] The embodiment of the present invention does not limit the fixing and assembling method of the rotating disk 2 and the rotating connecting member 3. For example, the rotating disk 2 and the rotating connecting member 3 are screw-connected, concave-convex-fittedly connected, or welded.

[0028] The embodiment of the present invention does not limit the fixing and assembling method of the grating scale reading head 5 and the base 1. Exemplarily, the grating scale reading head 5 and the base 1 are connected by screws, concave-convex fitting or welding.

[0029] Furthermore, in some embodiments, the driving unit 7 includes a magnet 71 coaxially sleeved outside the rotating connection member 3 and fixedly connected to the rotating connection member 3, and a coil 72 arranged on the outer peripheral side of the magnet 71 and fixedly assembled on the base 1, and the coil 72 is used to drive the magnet 71 to rotate and drive the rotating connection member 3 to rotate.

[0030] Specifically, the coil 72 can be energized, and after being energized, the coil 72 generates a magnetic field. The coil 72 is fixed, and the interaction with the magnet 71 can drive the magnet 71 to rotate, thereby driving the rotating connection 3 to rotate, and then driving the turntable 2 and the grating scale 4 to rotate synchronously, so that the grating scale reader 5 can detect the rotation angle, and realize the positioning of the objective lens assembly hole 21 on the turntable 2, and finally realize the alignment of the objective lens and the light hole 11. In addition, by coaxially sleeved the magnet 71 outside the rotating connection, the overall space can be increased to make the structure more compact and reduce the size.

[0031] Furthermore, in some embodiments, the base 1 includes a main body 12 connected to the turntable 2 and a covering portion 13 protruding from the main body 12 away from the turntable 2, the light hole 11 passes through the covering portion 13 and the main body 12, the main body 12 also has a connecting hole 121 passing through the main body 12, the covering portion 13 also has a connecting cavity 131 connected to the connecting hole 121, and the connecting hole 121 and the connecting cavity 131 are both isolated from the light hole 11; the rotating connecting member 3 at least partially passes through the connecting hole 121 and penetrates into the connecting cavity 131, and the grating scale 4 and the grating scale reader 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 is provided with a through connection hole 121, the connection cavity 131 of the cover 13 has an opening, the connection cavity 131 is connected to the connection hole 121 through the opening, and at least part of the rotating connection member 3 penetrates into the connection cavity 131 from the connection hole 121, thereby determining the setting position of the rotating connection member 3 on the base 1. The grating scale 4 and the grating scale reader 5 are located in the connection cavity 131, thereby determining the setting position of the grating scale 4 and the grating scale reader 5 on the base 1. In addition, the grating scale reader 5 leads to a reader signal line 51, so the cover 13 can also be provided with a clearance hole connected to the connection cavity 131, so that the reader 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 both isolated from the light-through hole 11, so that the rotating connecting member 3, the grating scale 4 and the grating scale reader 5 on the base 1 will not affect the light-through hole 11, and the light-through 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 is connected to the connecting hole 121 and the opening faces the connecting hole 121, the end of the rotating connecting member 3 close to the turntable 2 is fixed in the connecting groove 23, and a plurality of objective lens assembly holes 21 are arranged on the mounting portion 22 and around 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 peripheral side of the rotating connecting member 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 be connected to the connecting hole 121 through the opening, so that the rotating connecting member 3 can be partially located in the connecting hole 121 and the connecting cavity 131 and the other part is located in the connecting groove 23 and fixedly connected to the connecting groove 23, thereby determining the setting position of the rotating connecting member 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 setting position of the damping device 8 on the turntable 2. In addition, 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 covering portion 13 away from the connecting hole 121 of the mounting portion 22 is also a closed side, so that 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 connecting member 3 and the damping device 8 are received in the closed receiving space, thereby having a protective effect on the rotating connecting member 3 and the damping device 8.

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

[0036] In addition, a damping device 8 is provided in the connection groove 23 and is sleeved on the outer peripheral side of the rotating connection member 3. Thus, when the rotating connection member 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] Exemplarily, the damping device 8 may be a friction contact type rotation damping device or a magnetic non-contact type rotation damping device.

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

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

[0040] Specifically, the drive unit 7 is coaxially arranged with the rotating connection member 3, and the drive unit 7 is arranged in the connecting groove 23. At the same time, the drive unit 7 is also located between the grating scale 4 and the damping device 8. In this way, the relative positions of the base 1, the grating scale 4, the grating scale reader 5, the rotating connection member 3, the drive unit 7, the damping device 8 and the turntable 2 can be determined, so that the grating scale 4, the grating scale reader 5, the rotating connection member 3, the drive unit 7 and the damping device 8 are accommodated in the closed accommodation space formed by the base 1 and the turntable 2, which can make the overall structure compact, improve space utilization and reduce size.

[0041] In some specific embodiments, the driving unit 7 includes a magnet 71 and a coil 72, the magnet 71 is coaxially sleeved outside the rotating connector 3, the coil 72 is arranged on the outer peripheral side of the magnet 71, and the magnet 71 and the coil 72 are arranged in the connecting groove 23 of the turntable 2. In addition, the coil 72 and the base 1 can be fixedly connected by means of screw connection, concave-convex matching or welding. In addition, the coil 72 leads to a power line 73. The power line 73 can be led to the connecting cavity 131 of the covering part 13. At the same time, an avoidance hole can be opened in the covering part 13, so that the power line 73 can eventually be exposed to the outside through the avoidance hole for electrical connection with the outside.

[0042] Furthermore, in some embodiments, a first limiting groove 14 opening toward the turntable 2 is formed on the outer peripheral side of the base 1, and a second limiting groove 24 opening toward the base 1 is formed on the outer peripheral side of the turntable 2. The first limiting groove 14 and the second limiting groove 24 are arranged opposite to each other and spaced apart to form a limiting space; the microscope objective turntable also includes a support member 9 arranged 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 a [ shape, with openings facing each other, so that a limiting space is formed between the two limiting grooves, and there is a gap between the two limiting grooves, so that the limiting space includes the internal space defined by the two limiting grooves and the gap between the two limiting grooves, and the support member 9 is located in the limiting space. With such an arrangement, when the driving 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, and can also provide a supporting force, so that the turntable 2 and the base 1 can stably rotate relative to each other under the support of the support member 9. Since the support member 9 is a rigid structure, compared with the structural method of using an inner ring bearing and an outer ring ball support in the related art, the turntable 2 will not generate a deflection angle in the radial direction when rotating, which can strictly ensure the position accuracy, improve the structural rigidity, and improve the structural bearing capacity.

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

[0045] Specifically, the grating ruler 4 rotates synchronously with the turntable 2 by rotating the connecting piece 3, and the grating ruler encoder 6 can read the rotation angle data of the grating ruler 4, and feed back the rotation angle data to the external controller. The controller can judge whether the turntable 2 is rotated in place according to the difference between the actual data and the set data, that is, judge whether one of the objective lens assembly holes 21 on the turntable 2 as the target object reaches the set position. If not, the driving unit 7 continues to drive the rotation until the objective lens assembly hole 21 as the target object 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 lens turntable can be achieved.

[0046] Furthermore, in some embodiments, the microscope objective turret further includes a boss 15 fixedly connected to the side of the base 1 away from the turntable 2, the boss 15 is provided with a mounting hole 151 that passes through the light hole 11, and the boss 15 is used to connect to an external device.

[0047] Specifically, the boss 15 can be a dovetail groove, which can be used to match external equipment to achieve connection between the whole device and the external equipment. Different external equipment can match different bosses 15, so that the microscope objective turret can match different external equipment, improving practicality.

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

[0049] Furthermore, in some embodiments, the turntable 2 is provided with a plurality of adapter rings corresponding to the objective lens mounting holes 21, and different adapter rings are used to match different objective lenses, thereby meeting the requirements of various magnifications. When the objective lens needs to be replaced, the turntable 2 can be rotated so that the objective lens mounting hole 21 on the turntable 2 as the target object is rotated to a set position so that the objective lens mounting hole 21 can be directly opposite to the light-through hole 11, and then the required adapter ring and objective lens can be replaced.

[0050] A second aspect of an embodiment of the present invention provides a microscope, including a plurality of objective lenses and a microscope objective lens turret, wherein the objective lenses are detachably connected to the objective lens assembly holes 21 .

[0051] In the embodiment of the present invention, different objective lenses can be installed on the same microscope objective turret, so as to meet the requirements of various magnifications. In addition, since the objective turret is provided with a grating ruler 4 and a grating ruler reader 5, when the objective lens needs to be replaced, when the turntable 2 is rotated so that the turntable 2 and the grating ruler 4 rotate synchronously, the grating ruler reader 5 can detect the rotation angle, so that the objective lens assembly hole 21 on the turntable 2 as the target object can be rotated to a preset position, thereby achieving high-precision positioning and meeting actual needs.

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

Claims

1. A microscope objective lens turret, comprising a base and a turntable rotatably connected to the base, wherein the base is provided with a light-through hole, and the turntable is provided with a plurality of objective lens mounting holes, wherein the light-through hole can be directly opposite to any of the objective lens mounting holes; characterized in that: The microscope objective turret also includes a rotating connection fixedly connected to the turntable, a driving unit coaxially arranged with the rotating connection and used to drive the rotating connection to rotate, a grating scale fixedly connected to the rotating connection, and a grating scale reader fixedly connected to the base and arranged on the periphery of the grating scale. The driving unit drives the rotating connection to rotate and drives the grating scale to rotate, and the grating scale reader is used to detect the rotation angle of the grating scale.

2. The microscope objective turret according to claim 1, characterized in that: The driving unit includes a magnet coaxially sleeved outside the rotating connection member and fixedly connected to the rotating connection member, and a coil arranged on the outer peripheral side of the magnet and fixedly assembled on the base, and the coil is used to drive the magnet to rotate and drive the rotating connection member to rotate.

3. The microscope objective turret according to claim 2, characterized in that: The base includes a main body connected to the turntable and a covering part protruding from the main body away from the turntable, the light-through hole passes through the covering part and the main body, the main body also has a connecting hole passing through the main body, the covering part also has a connecting cavity connected to the connecting hole, the connecting hole and the connecting cavity are both isolated from the light-through hole; the rotating connecting member at least partially passes through the connecting hole and penetrates into the connecting cavity, and the grating scale and the grating scale reader are located in the connecting cavity.

4. The microscope objective lens turret according to claim 1, characterized in that: A first limiting groove opening toward the turntable is formed on the outer peripheral side of the base, and a second limiting groove opening toward the base is formed on the outer peripheral side of the turntable. The first limiting groove and the second limiting groove are arranged opposite to each other and spaced apart to form a limiting space; the microscope objective turret also includes a support member arranged in the limiting space.

5. The microscope objective turret 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 is connected to the connecting hole and opens toward the connecting hole, one end of the rotating connecting member close to the turntable is fixed in the connecting groove, and the plurality of objective lens assembly holes are arranged on the mounting portion and around the connecting groove; the microscope objective lens turntable also includes a damping device located in the connecting groove and sleeved on the outer peripheral side of the rotating connecting member.

6. The microscope objective lens turret according to claim 5, characterized in that: The driving unit is arranged in the connecting groove and located between the grating ruler and the damping device.

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

8. The microscope objective turret according to claim 1, characterized in that: The microscope objective turret also includes a boss fixedly connected to the side of the base away from the turntable, the boss is provided with a mounting hole connected to the light through hole, and the boss is used to connect to an external device.

9. The microscope objective lens turret according to claim 1, characterized in that: The grating ruler and the rotating connecting member are connected by screws, concave-convex fitting or welding; and / or, The rotating disk and the rotating connecting member are connected by screws, concave-convex fitting or welding; and / or, The grating scale reading head and the base are connected by screws, concave-convex fitting or welding.

10. A microscope, characterized in that: It comprises a plurality of objective lenses and a microscope objective lens turret as claimed in any one of claims 1 to 9, wherein the plurality of objective lenses are detachably connected to the plurality of objective lens assembly holes.

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