Lighting device and microscope

Abstract

The present invention relates to an illumination device and a microscope, wherein the illumination device comprises: a first support portion extending along a first direction; a condenser lens arranged on the first support portion; a first sliding member fixedly arranged on the first support portion; a first aperture lens arranged on the condenser lens; a first adjusting device connected to the first aperture lens and used to adjust the aperture size of the first aperture lens; a second driving assembly used to drive the first adjusting device to rotate along the circumference of the first aperture lens to adjust the aperture size of the first aperture lens; an illumination light source, wherein the illumination light source and the condenser lens are arranged at intervals; a second aperture lens arranged on the illumination light source; a second adjusting device used to adjust the aperture size of the second aperture lens; and a third driving assembly used to drive the second adjusting device to rotate along the circumference of the second aperture lens to adjust the aperture size of the second aperture lens. After the illumination device of the present invention is installed on a microscope, the microscope can be precisely focused and a clear image can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of microscopes, and in particular to an illumination device and a microscope. Background Art

[0002] A microscope is an optical instrument composed of one lens or a combination of several lenses. It is widely used in the fields of medical care, biological testing, metallographic testing, and integrated circuit testing. Generally, a sample is placed on a stage, and the sample is observed by moving the stage, such as along the X and Y directions.

[0003] For example, a Chinese patent document with publication number CN104423027A discloses a microscope including a recording unit, which has a magnifying imaging optical unit and an image module for recording multiple images of a sample at a first image frequency, and a digital evaluation unit, the recorded images are provided to the digital evaluation unit, and the digital evaluation unit performs predetermined image processing based on the recorded images, and as a result, generates multiple output images at a second image frequency, which is less than or equal to the first image frequency, and can be transferred to the output unit for representation. Summary of the invention

[0004] The object of the present invention is to provide a novel lighting device, which is installed on a microscope, and comprises: a first support portion, which extends along a first direction; a condenser, which is arranged on the first support portion; a first sliding member, which is fixed to the first support portion and extends along the first direction; a second sliding member, which is connected to the condenser, and the second sliding member and the first sliding member cooperate with each other, and the second sliding member and the first sliding member can slide relative to each other in the first direction; a first driving assembly, which is arranged on the first support portion and is used to drive the condenser to move relative to the first support portion along the first direction; a first diaphragm, which is arranged on the condenser and is coaxial with the lens of the condenser; a first adjusting device, which is connected to the first diaphragm and is coaxial with the lens of the condenser; and a first adjusting device, which is connected to the first diaphragm. The first diaphragm is connected to the first adjusting device and is used to adjust the aperture size of the first diaphragm; the second driving component is connected to the first adjusting device and is used to drive the first adjusting device to rotate along the circumference of the first diaphragm to adjust the aperture size of the first diaphragm; the illumination light source is provided on the first supporting portion, and along the first direction, the illumination light source and the condenser are arranged at intervals; the second diaphragm is provided on the illumination light source to be coaxially arranged with the lens of the illumination light source; the second adjusting device is connected to the second diaphragm and is used to adjust the aperture size of the second diaphragm; the third driving component is connected to the second adjusting device and is used to drive the second adjusting device to rotate along the circumference of the second diaphragm to adjust the aperture size of the second diaphragm.

[0005] The lighting device of the present application can electrically control the height of the condenser in the first direction, so that the microscope can present a good imaging effect under different objective lens magnifications; the aperture size of the first aperture in the condenser is electrically controlled by the second driving component, and the aperture size of the second aperture in the lighting light source is electrically controlled by the third driving component. It is easy to use, has a high degree of automation, and improves the efficiency of aperture diameter change.

[0006] Optionally, the second driving component includes:

[0007] A second connecting member, the second connecting member is arranged around the condenser in a manner of being rotatable along the circumferential direction;

[0008] A first motor is spaced apart from the condenser and installed on a support portion fixedly installed relative to the condenser, wherein a first output shaft of the first motor extends along the first direction;

[0009] A first synchronous wheel, fixedly mounted on the first output shaft;

[0010] A first synchronous belt, one end of which is sleeved on the second connecting piece, and the other end of which is sleeved on the first synchronous wheel, wherein the first adjusting device extends radially out of the second connecting piece and into the first synchronous belt to be fixedly connected with the first synchronous belt;

[0011] The first limiting portion can limit the first synchronous belt from moving along the first direction during rotation.

[0012] Optionally, the first limiting portion comprises: a plurality of first rollers arranged at intervals along the circumferential direction, each of the first rollers being mounted on a first rotating shaft in a manner rotatable along the circumferential direction, the first rotating shaft extending along the first direction and being mounted on the condenser;

[0013] A first recess is formed on the outer peripheral surface of each first roller, and the second connecting member is disposed around the plurality of first rollers and is located in all the first recesses;

[0014] When the first synchronous belt drives the second connecting member to rotate along the circumferential direction, each first roller rotates along the circumferential direction relative to the first rotating shaft.

[0015] Optionally, one end of the first synchronous belt sleeved on the second connecting member is located in at least a portion of the first recess, and at least a portion of the first recess restricts the first synchronous belt from moving along the first direction during rotation.

[0016] Optionally, the first limiting portion further includes: a second recess provided on the outer circumferential surface of the second connecting member, one end of the first synchronous belt sleeved on the second connecting member is located in the second recess, and the second recess limits the first synchronous belt from moving along the first direction during rotation.

[0017] Optionally, the second connecting member is a first sheet metal member, and two ends of the first sheet metal member are butt-jointed and fixed and then disposed around the condenser.

[0018] Optionally, the support portion fixedly mounted relative to the condenser includes:

[0019] A second supporting portion, wherein the second supporting portion is connected to the condenser and the second sliding member respectively;

[0020] The fourth supporting portion is fixedly arranged on the second supporting portion, and the first motor is installed on the fourth supporting portion.

[0021] Optionally, the third driving assembly includes:

[0022] a third connecting member, the third connecting member being arranged around the second adjusting device and being capable of rotating synchronously with the second adjusting device;

[0023] A second motor is spaced apart from the illumination light source and installed on a support portion fixedly installed relative to the illumination light source, and a second output shaft of the second motor extends along the first direction;

[0024] A second synchronous wheel, fixedly mounted on the second output shaft;

[0025] A second synchronous belt, one end of which is sleeved on the third connecting member, and the other end of which is sleeved on the second synchronous wheel;

[0026] The second limiting portion can limit the second synchronous belt from moving along the first direction during rotation.

[0027] Optionally, the second limiting portion includes: a third recess provided on the outer circumferential surface of the third connecting member, one end of the second synchronous belt sleeved on the third connecting member is located in the third recess, and the third recess limits the second synchronous belt from moving along the first direction during rotation.

[0028] Optionally, the third connecting member is a second sheet metal member, and two ends of the second sheet metal member are butt-jointed and fixed and then disposed around the second adjusting device.

[0029] Optionally, the support portion fixedly mounted relative to the illumination light source includes: a fifth support portion fixedly mounted on the first support portion, the illumination light source being disposed on the fifth support portion, and the second motor being mounted on the fifth support portion.

[0030] Optionally, along a second direction, the first driving assembly and the first sliding member are respectively located on opposite sides of the first supporting portion, and the second direction is a direction perpendicular to the first supporting portion.

[0031] Optionally, along the third direction, the maximum width of the first driving assembly is less than or equal to the width of the first supporting portion, and the first direction, the second direction and the third direction are perpendicular to each other.

[0032] Optionally, it also includes: a second supporting part and a first connecting member, the second supporting part is respectively connected to the condenser and the second sliding member, the first connecting member is respectively attached to the second supporting part and the driving part of the first driving component, and the first connecting member can move relative to the first driving component along the first direction.

[0033] Optionally, the first connecting member includes a first part, a second part and a third part connected in sequence, wherein the first part of the first connecting member is attached to the part of the driving part of the first driving assembly facing away from the first supporting part, and the third part of the first connecting member is attached to the part of the second supporting part facing the first supporting part.

[0034] Optionally, the first driving component includes:

[0035] A first screw rod extending along the first direction;

[0036] The first screw nut is sleeved on the first screw, the first screw nut is connected to the condenser through the first connecting piece, and the first screw nut serves as a driving part of the first driving assembly.

[0037] Optionally, it further includes: a third supporting portion, the third supporting portion is vertically connected to the second supporting portion, and the condenser is arranged on the third supporting portion.

[0038] Optionally, the first motor and the condenser are spaced apart along a third direction, and the third direction is perpendicular to the first direction; one of the second support part and the fourth support part is provided with a first slide groove, and the other is provided with a first bolt hole; the first slide groove extends along the third direction, and is used to be fixedly connected with the first bolt hole by bolts after the fourth support part moves a set distance along the third direction.

[0039] Optionally, the second motor and the lighting light source are spaced apart along the second direction; one of the second motor and the fifth support portion is provided with a second slide groove, and the other is provided with a second bolt hole; the second slide groove extends along the second direction, and is used to be fixedly connected to the second bolt hole by bolts after the second motor moves a set distance along the second direction.

[0040] Optionally, the first motor is a dual-axis motor, and the first motor has a third output shaft, which is located on the opposite side of the first motor as the first output shaft; the lighting device also includes: a first limiter and a first limit piece cooperating with the first limiter, the first limiter is installed on the second support part through a limiter mounting piece, and the first limit piece is arranged on the third output shaft; wherein, the first limit piece can rotate along the circumferential direction by a set angle until it touches the first limiter, and the first motor stops working.

[0041] Optionally, the first motor and the condenser are spaced apart along a third direction, the limiter mounting member and the fourth support portion are spaced apart along the first direction, and the third direction is perpendicular to the first direction; one of the second support portion and the limiter mounting member is provided with a third slide groove, and the other is provided with a third bolt hole; the third slide groove extends along the third direction, and is used to be fixedly connected to the third bolt hole by bolts after the limiter mounting member moves a set distance along the third direction.

[0042] Optionally, one of the limiter mounting member and the first limiter is provided with a fourth slide groove, and the other is provided with a fourth bolt hole; the fourth slide groove is used to be fixedly connected to the fourth bolt hole by bolts after the first limiter moves a set distance along the extension direction of the fourth slide groove; wherein, after the first limiter moves a set distance along the extension direction of the fourth slide groove, the first limiter can be changed to rotate along the circumferential direction to touch the first limiter.

[0043] Optionally, one end of the fifth support portion is connected to the first support portion, and the other end is connected to the limiter mounting mainboard; the second motor is a dual-axis motor, and the second motor has a fourth output shaft, which is located on the opposite side of the second motor as the second output shaft; the lighting device also includes: a second limiter and a second limit member cooperating with the second limiter, the second limiter is installed on the limiter mounting mainboard, and the second limit member is arranged on the fourth output shaft; wherein, the second limit member can rotate along the circumferential direction at a set angle until it touches the second limiter, and the second motor stops working.

[0044] Optionally, one of the fifth support portion and the limiter mounting main board is provided with a fifth slide groove, and the other is provided with a fifth bolt hole; the fifth slide groove extends along the second direction, and is used to be fixedly connected with the fifth bolt hole by bolts after the limiter mounting main board moves a set distance along the second direction.

[0045] Optionally, one of the limiter mounting mainboard and the second limiter is provided with a sixth slide groove, and the other is provided with a sixth bolt hole; the sixth slide groove is used to be fixedly connected with the sixth bolt hole by bolts after the second limiter moves a set distance along the extension direction of the sixth slide groove; wherein, after the second limiter moves a set distance along the extension direction of the sixth slide groove, the second limiter can be changed to rotate along the circumferential direction to an angle that touches the second limiter.

[0046] The present application also provides a microscope, comprising: a stage for placing an observation sample; and the lighting device described in any one of the above items, wherein the condenser is installed between the stage and the lighting light source, and the lighting light source is used to illuminate the observation sample.

[0047] In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A three-dimensional diagram showing a lighting device according to an embodiment of the present invention Figure 1 ;

[0049] Figure 2 A three-dimensional diagram showing a lighting device according to an embodiment of the present invention Figure 2 ;

[0050] Figure 3 A three-dimensional diagram showing a lighting device according to an embodiment of the present invention Figure 3 ;

[0051] Figure 4 A side view of a lighting device according to an embodiment of the present invention is shown;

[0052] Figure 5 A three-dimensional diagram showing a lighting device according to an embodiment of the present invention Figure 4 ;

[0053] Figure 6 A schematic diagram showing the connection between the second connecting member and the first synchronous belt in the lighting device according to the embodiment of the present invention is shown;

[0054] Figure 7 A three-dimensional diagram showing a lighting device according to an embodiment of the present invention Figure 5 ;

[0055] Figure 8 A three-dimensional diagram showing a lighting device according to an embodiment of the present invention Figure 6 . DETAILED DESCRIPTION

[0056] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0057] refer to Figures 1 to 6 The present invention provides a lighting device 1, along a first direction ( Figures 1 to 4 The condenser 20 is installed between the stage of the microscope (not shown) and the illumination light source 70, and is used to illuminate the sample placed on the stage of the microscope. Exemplarily, the first direction is the vertical direction. Exemplarily, the illumination device 1 is installed on the microscope by installing the main board 10. The illumination device 1 of the present invention comprises: a first support portion 11, extending along the first direction; Exemplarily, the first support portion 11 is plate-shaped, and the first support portion 11 is vertically connected to the installation main board 10; the above-mentioned condenser 20 is provided on the first support portion 11, and the condenser 20 converges the illumination light and illuminates the sample placed on the stage of the microscope with the illumination light.

[0058] refer to Figures 1 to 3 A first sliding member 21 and a second sliding member 22 are also fixedly disposed on the first supporting portion 11, wherein the first sliding member 21 extends along the first direction, and the second sliding member 22 is connected to the condenser 20. The second sliding member 22 cooperates with the first sliding member 21, and the second sliding member 22 and the first sliding member 21 can slide relative to each other in the first direction, and the condenser 20 is driven to move relative to the first supporting portion 11 along the first direction through the first driving assembly 30 disposed on the first supporting portion 11.

[0059] Therefore, after the condenser 20 is driven to move in the first direction, the distance between the condenser 20 and the stage is changed, so that the microscope can be accurately focused and a clear image can be obtained. The condenser 20 of the present invention automatically moves in the first direction and is easy to use.

[0060] In this embodiment, the first sliding member 21 is a slide rail extending along a first direction. The second sliding member 22 is a slider, and the first sliding member 21 and the second sliding member 22 cooperate with each other. Figure 3As shown, there are two first sliding members 21, which are arranged parallel to each other. The second sliding member 22 is slidably matched with the two first sliding members 21 at the same time, thereby improving the stability of the first sliding member 21 moving along the first direction. In other embodiments, other types of sliding members may be used, such as guide rods and sliding sleeves.

[0061] Exemplarily, along the second direction ( Figures 1 to 4 The first driving assembly 30 and the first sliding member 21 are respectively located on opposite sides of the first supporting portion 11, and the second direction is a direction perpendicular to the first supporting portion 11. Figure 3 The maximum width of the first driving assembly 30 is less than or equal to the width of the first supporting portion 11, and the first direction, the second direction and the third direction are perpendicular to each other. This arrangement makes the lighting device 1 compact. Exemplarily, the third direction is the horizontal direction.

[0062] In this embodiment, the lighting device 1 further includes: a second support portion 12 and a first connecting member 33. Exemplarily, the second support portion 12 is plate-shaped. The second support portion 12 is connected to the condenser 20 and the second sliding member 22, respectively, and the first connecting member 33 is respectively attached to the second support portion 12 and the driving portion of the first driving assembly 30. Exemplarily, the driving portion of the first driving assembly 30 is the first screw nut 32 described later. The first connecting member 33 can move relative to the first driving assembly 30 along a first direction, and exemplary, the first connecting member 33 can move relative to the first screw 31 described later along a first direction.

[0063] The first connecting member 33 is a sheet metal member, and the first connecting member 33 plays a transitional connection role, so as to avoid the first screw nut 32 and the second support portion 12 from being stuck in the first direction due to non-parallel installation, machining tolerance, etc. after being directly connected. At the same time, the movement stability of the first drive assembly 30 in the first direction is improved, and the movement stability of the first drive assembly 30 in the first direction is improved, so as to achieve high-precision transmission.

[0064] For example, Figure 1 and Figure 2 As shown, the first connecting member 33 includes a first portion 33a, a second portion 33b and a third portion 33c connected in sequence, wherein the first portion 33a of the first connecting member 33 is attached to the portion of the driving portion of the first driving assembly 30 that faces away from the first supporting portion 11, and the third portion 33c of the first connecting member 33 is attached to the portion of the second supporting portion 12 that faces the first supporting portion 11. Exemplarily, the first portion 33a of the first connecting member 33 is attached to the portion of the first screw nut 32 described later that faces away from the first supporting portion 11.

[0065] In addition, the type of the first driving assembly 30 is not limited, and it only needs to be able to drive the second sliding member 22 to move relative to the first sliding member 21 along the first direction, such as a linear motor. Figure 1 , Figure 2 and Figure 4 In this embodiment, the first driving assembly 30 is a screw assembly, including: a first screw 31, extending along the first direction; a first screw nut 32, sleeved on the first screw 31, and the first screw nut 32 is connected to the condenser 20 through the first connecting member 33. That is, the first screw nut 32 serves as the driving part of the first driving assembly 30. Therefore, the first screw 31 and the first screw nut 32 cooperate to convert the circumferential motion into linear motion, and the first screw nut 32 moves relative to the first support portion 11 in the first direction, and drives the condenser 20 to move relative to the first support portion 11 along the first direction.

[0066] In addition, in this embodiment, reference Figure 1 , the first screw rod 31 is supported on the first support portion 11 through the first support member, the first support member is connected to the first support portion 11, and the first screw rod 31 is connected to the output shaft of the motor 37 through the first coupling 36. Among them, the type of the first support member is not limited, and it is sufficient to support the first screw rod 31 on the first support portion 11. In this embodiment, the first support member includes: a first fixed seat 35 and a first support seat 34, and the first fixed seat 35 and the first support seat 34 are respectively connected to the first support portion 11. The first screw nut 32 is located between the first fixed seat 35 and the first support seat 34, and the first fixed seat 35 and the first support seat 34 jointly support the first screw rod 31. In addition, the first fixed seat 35 is located between the first coupling 36 and the motor 37.

[0067] Continue to refer Figure 1 and Figure 3 The lighting device 1 further includes: a third support portion 13, the third support portion 13 is vertically connected to the second support portion 12, and the condenser 20 is arranged on the third support portion 13. The third support portion 13 can move along the first direction relative to the first support portion 11 with the second support portion 12, and then drive the condenser 20 thereon to move along the first direction relative to the first support portion 11, so as to realize the electric control of the height of the condenser 20 in the first direction. Therefore, the microscope can present a good imaging effect under different objective lens magnifications.

[0068] Continue to refer Figures 1 to 3The lighting device 1 of the present invention further includes: a first diaphragm (not shown), which is arranged on the condenser 20 and is coaxially arranged with the lens of the condenser 20. The first diaphragm is a variable aperture diaphragm. A first adjusting device 40 is provided on the condenser 20. The first adjusting device 40 is connected to the first diaphragm and is used to adjust the aperture size of the first diaphragm. Exemplarily, the first adjusting device 40 is an diaphragm adjusting rod. In this embodiment, the first adjusting device 40 is connected to the second driving assembly 50. The second driving assembly 50 is used to drive the first adjusting device 40 to move along the circumference of the first diaphragm ( Figure 1 and Figure 3 The aperture of the first diaphragm can be adjusted by rotating the diaphragm (as shown in the T direction).

[0069] Exemplarily, the angle range of the first adjusting device 40 in the circumferential forward or reverse rotation is between 0° and 120°. Exemplarily, the second driving assembly 50 drives the first adjusting device 40 in the circumferential forward rotation to adjust the aperture of the first diaphragm to become larger, and the second driving assembly 50 drives the first adjusting device 40 in the circumferential reverse rotation to adjust the aperture of the first diaphragm to become smaller. Thus, the lighting device 1 of the present invention electrically controls the aperture size of the first diaphragm in the condenser 20 through the second driving assembly 50, is easy to use, has a high degree of automation, and improves the efficiency of diaphragm diameter change.

[0070] Specifically, the lighting device 1 also includes a support portion fixedly mounted relative to the condenser 20. In this embodiment, the support portion fixedly mounted relative to the condenser 20 includes: the aforementioned second support portion 12 and the fourth support portion 14. The fourth support portion 14 is fixedly mounted on the aforementioned second support portion 12. Exemplarily, the fourth support portion 14 is vertically connected to the second support portion 12. Exemplarily, the second support portion 12 and the fourth support portion 14 are integrally formed. Exemplarily, the second support portion 12 and the fourth support portion 14 are independently processed and manufactured, and are respectively connected to the second support portion 12.

[0071] refer to Figures 1 to 4 In this embodiment, the second driving assembly 50 includes: a first motor 51, which is spaced apart from the condenser 20 and installed on a support portion fixedly installed relative to the condenser 20. Exemplarily, the first motor 51 is installed on the fourth support portion 14, and the first output shaft 54 ​​of the first motor 51 extends along the first direction, and the first output shaft 54 ​​is spaced apart from the condenser 20. The lighting device 1 of this embodiment also includes: a second connecting member 53, a first synchronous wheel 58, and a first synchronous belt 57. Among them, the second connecting member 53 is arranged around the condenser 20 in a circumferentially rotatable manner.

[0072] For example, the second connecting member 53 can rotate synchronously with the first adjusting device 40. The first synchronous belt 57 is fixed to the first output shaft 54. One end of the first synchronous belt 57 is sleeved on the second connecting member 53, and the other end is sleeved on the first synchronous wheel 58. Figure 1 and Figure 3 As shown, the first adjusting device 40 extends radially out of the second connecting member 53 and extends into the first synchronous belt 57 to be fixedly connected with the first synchronous belt 57. The second connecting member 53 fastens the first adjusting device 40 so that the first adjusting device 40 can move synchronously with the second connecting member 53.

[0073] Thus, the first motor 51 works, the first synchronous wheel 58 rotates in the circumferential direction, drives the second connecting member 53 to rotate through the first synchronous belt 57, and then the first adjusting device 40 rotates in the circumferential direction to adjust the aperture size of the first aperture in the condenser 20. The first output shaft 54 ​​of the first motor 51 rotates forward or reversely, drives the second connecting member 53 to rotate forward or reversely in the circumferential direction, and the first adjusting device 40 rotates forward or reversely in the circumferential direction along with the second connecting member 53 to change the aperture size of the first aperture in the condenser 20.

[0074] It should be noted that the specific type of the first adjusting device 40 is not limited, as long as it can adjust the aperture size of the first diaphragm. In this embodiment, the first adjusting device 40 has a protrusion protruding out of the condenser 20, the protrusion protrudes out of the second connecting member 53, and extends into the first synchronous belt 57 to be fixedly connected to the first synchronous belt 57.

[0075] Exemplarily, the first motor 51 and the condenser lens 20 are spaced apart along a third direction, and the third direction is perpendicular to the first direction. Figure 7 and Figure 8 As shown, the portion of the fourth support portion 14 that is attached to the second support portion 12 is provided with a first slide groove 141, and the second support portion 12 is provided with a first bolt hole. Exemplarily, the first slide groove 141 is a U-shaped groove. The first slide groove 141 is along the third direction ( Figure 7 The fourth support portion 14 extends in the Y direction and is used to be fixedly connected with the first bolt hole by bolts after the fourth support portion 14 moves a set distance along the third direction. In some possible implementations, the fourth support portion 14 may be provided with a first bolt hole, and the second support portion 12 may be provided with a first slide groove 141.

[0076] After such arrangement, by changing the distance between the fourth support portion 14 and the condenser 20 in the third direction, the distance between the first motor 51 and the condenser 20 in the third direction is changed, thereby changing the distance between the first synchronous wheel 58 and the condenser 20 in the third direction, and then the tightness of the first synchronous belt 57 mounted on the second connecting member 53 can be changed.

[0077] For example, if the first synchronous belt 57 is too loosely mounted on the second connecting member 53, the distance between the fourth supporting portion 14 and the condenser 20 in the third direction is increased. Specifically, the bolts connecting the first slide groove 141 and the first bolt hole are loosened; the fourth supporting portion 14 is moved along the third direction, during which the first slide groove 141 moves relative to the first bolt hole along the third direction, and after the first synchronous belt 57 is mounted on the second connecting member 53 to a suitable tightness, the bolts connecting the first slide groove 141 and the first bolt hole are tightened to achieve a fixed connection.

[0078] Continue to refer Figures 1 to 8 The second driving assembly 50 of the present application further includes: a first limiter, which can limit the first synchronous belt 57 from moving in the first direction during the rotation process. That is, by setting the first limiter, the first synchronous belt 57 is prevented from moving in the first direction during the rotation process. The first motor 51 drives the first synchronous belt 57 to rotate reliably and stably in the circumferential direction, and then reliably and stably drives the second connecting member 53 to rotate in the circumferential direction, and finally reliably and stably drives the first adjusting device 40 to rotate forward or reverse along the circumferential direction with the second connecting member 53, so as to change the aperture size of the first aperture in the condenser 20.

[0079] Exemplarily, the first limiting portion includes: a plurality of first rollers 15 arranged at intervals along the circumferential direction, each of the first rollers 15 is mounted on a first rotating shaft (not shown) in a circumferentially rotatable manner, and the first rotating shaft extends along the first direction and is mounted on the condenser 20. Exemplarily, the first rotating shaft is mounted on the third supporting portion 13. The outer circumferential surface of each first roller of the present application is provided with a first recess 151 ( Figure 1 As shown in FIG. 1 , the second connecting member 53 is disposed around the plurality of first rollers 15 and is located in all the first recesses 151 .

[0080] This is equivalent to the second connecting member 53 being clamped by the plurality of first rollers 15, so that the second connecting member 53 will not move in the first direction. That is, when the first synchronous belt 57 drives the second connecting member 53 to rotate in the circumferential direction, each first roller 15 will rotate in the circumferential direction relative to the first rotating shaft, thereby improving the smoothness and reliability of the rotation of the second connecting member.

[0081] Exemplarily, one end of the first synchronous belt 57 sleeved on the second connecting member 53 is located in at least a portion of the first recess 151, and at least a portion of the first recess 151 limits the first synchronous belt 57 from moving along the first direction during rotation. Equivalently, the first recess 151 also clamps the first synchronous belt 57, and the first synchronous belt 57 does not move along the first direction, thereby improving the reliability of the first synchronous belt 57 rotating in the circumferential direction.

[0082] In some possible implementations, reference Figure 6The first limiting portion further includes: a second recess 531 provided on the outer peripheral surface of the second connecting member 53, one end of the first synchronous belt 57 sleeved on the second connecting member 53 is located in the second recess 531, and the second recess 531 limits the movement of the first synchronous belt 57 along the first direction during the rotation process. This is equivalent to that after the first synchronous belt 57 is sleeved on the second connecting member 53, the second recess 531 clamps the first synchronous belt 57, so that the first synchronous belt 57 will not move along the first direction, thereby improving the reliability of the first synchronous belt 57 rotating along the circumferential direction.

[0083] Exemplarily, the second connecting member 53 is a first sheet metal member, and the two ends of the first sheet metal member are fixedly connected and arranged around the condenser 20. Figure 3 As shown, the two ends of the second connecting member 53 in the circumferential direction are butt-jointed and fixed by bolts 531 to fasten the first adjusting device 40 .

[0084] Continue to refer Figure 1 and Figure 2 , the lighting device 1 of the present invention further includes: a first limiter 56 and a first limiter 55 cooperating with the first limiter 56. The first limiter 56 is mounted on the second support portion 12 through the limiter mounting member 52, but is not limited thereto. The first limiter 55 is disposed on the first motor 51. In this embodiment, the first motor 51 is a dual-axis motor. The first motor 51 has a third output shaft, which is located on the opposite side of the first motor 51 from the first output shaft 54. The third output shaft is connected to the third coupling 54b, and the first limiter 55 is disposed on the third coupling 54b. The first limiter 55 can rotate circumferentially at a set angle until it touches the first limiter 56, and the first motor 51 stops working.

[0085] Equivalently, when the first motor 51 drives the first output shaft 54 ​​to rotate in the circumferential direction, the third output shaft of the first motor 51 will also rotate in the circumferential direction, and at the same time, the first stopper 55 will also rotate in the circumferential direction. Since the aperture size of the first aperture needs to be adjusted by the forward or reverse rotation of the first motor 51. Correspondingly, the first stopper 55 will also rotate forward or reverse. Therefore, a plurality of first stoppers 56 are provided on the stopper mounting member 52, and the plurality of first stoppers 56 are arranged at intervals along the rotation direction of the first stopper 55. The number of the first stoppers 56 is not limited, and illustratively, there are two first stoppers 56 arranged at intervals along the circumferential direction.

[0086] The corresponding setting is made according to the aperture size adjustment of the first aperture in the condenser 20. For example, after the first motor 51 drives the first adjustment device 40 to rotate 60° in the circumferential direction, when the first limiter 55 rotates and touches one of the first limiters 56, the first motor 51 stops working; after the first motor 51 continues to drive the first adjustment device 40 to rotate 60° in the circumferential direction, the first limiter 55 rotates until it touches another first limiter 56, and the first motor 51 stops working.

[0087] After such arrangement, the circumferential rotation range of the first adjusting device 40 is limited, preventing the first adjusting device 40 from rotating indefinitely in the circumferential direction, thereby damaging the condenser 20 and extending the service life of the lighting device 1. At the same time, the adjustment accuracy of the aperture size of the first aperture in the condenser 20 is improved.

[0088] Exemplarily, the first motor 51 and the condenser 20 are spaced apart in the third direction, and the stopper mounting member 52 and the fourth support portion 14 are spaced apart in the first direction. As mentioned above, in order to adjust the tightness of the first synchronous belt 57, the distance between the first motor 51 and the condenser 20 can be adjusted. When the distance between the first motor 51 and the condenser 20 in the third direction changes, the distance between the first stopper 55 provided on the first motor 51 and the first stopper 56 will also change.

[0089] In order not to affect the cooperation between the first stopper 56 and the first stopper 55, Figure 7 and Figure 8 As shown, the portion of the stopper mounting member 52 that is attached to the second support portion 12 is provided with a third slide groove 522, and the second support portion 12 is provided with a third bolt hole. Exemplarily, the third slide groove 522 is a U-shaped groove. The third slide groove 522 is along the third direction ( Figure 7 The third guide groove 522 extends along the Y direction in the middle of the second support portion 12, and is used to be fixedly connected to the third bolt hole by bolts after the stopper mounting member 52 moves a set distance along the third direction. In some possible implementations, the second support portion 12 may be provided with a third guide groove 522, and the stopper mounting member 52 may be provided with a third bolt hole.

[0090] After such arrangement, when the distance between the first motor 51 and the condenser 20 in the third direction changes, the distance between the stopper mounting member 52 and the condenser 20 in the third direction is adjusted accordingly, thereby adaptively adjusting the distance between the first stopper 55 provided on the first motor 51 and the first stopper 56. After ensuring that the first stopper 55 can rotate in the circumferential direction at a set angle until it touches the first stopper 56, the first motor 51 stops working.

[0091] Exemplary, reference Figure 2 , Figure 7 and Figure 8, a fourth slide groove 521 is provided on the limiter mounting member 52, and a fourth bolt hole is provided on the first limiter 56. Exemplarily, the fourth slide groove 521 is a U-shaped groove. The fourth slide groove 521 is used to be fixedly connected with the fourth bolt hole by bolts after the first limiter 56 moves a set distance along the extension direction of the fourth slide groove 521. Among them, after the first limiter 56 moves a set distance along the extension direction of the fourth slide groove 521, the first limiter 55 can be changed to rotate in the circumferential direction to touch the first limiter 56. In some possible embodiments, the limiter mounting member 52 may be provided with a fourth bolt hole, and the first limiter 56 may be provided with a fourth slide groove 521.

[0092] As mentioned above, in order to adjust the tightness of the first synchronous belt 57, the distance between the first motor 51 and the condenser 20 can be adjusted. When the distance between the first motor 51 and the condenser 20 in the third direction changes, the distance between the first limiter 55 provided on the first motor 51 and the first limiter 56 will be adaptively adjusted. In order to prevent the deviation in the adjustment of the distance between the first limiter 55 and the first limiter 56, the angle at which the first limiter 55 rotates circumferentially until it touches the first limiter 56 will change. In the present application, the first limiter 56 can be moved a set distance along the extension direction of the fourth slide groove 521, so that the angle at which the first limiter 55 rotates circumferentially until it touches the first limiter 56 will change, and it is ensured that the first limiter 55 can rotate circumferentially at a set angle until it touches the first limiter 56, and the first motor 51 stops working.

[0093] In some possible implementations, the range of the circumferential rotation of the first adjustment device 40 can be adjusted according to the adjustment range of the aperture size of the first aperture in the condenser 20. For example, as the adjustment range of the aperture size of the first aperture in the condenser 20 increases, the range of the circumferential rotation of the first adjustment device 40 also increases, thereby moving the first stopper 56 along the extension direction of the fourth slide groove 521 by a set distance, so that the angle at which the first stopper 55 rotates in the circumferential direction until it touches the first stopper 56 increases.

[0094] It should be noted that the type of the second driving assembly 50 is not limited thereto, and it only needs to be able to drive the first adjusting device 40 to rotate circumferentially to adjust the aperture size of the first aperture in the condenser 20 .

[0095] Continue to refer Figures 1 to 6 The present invention also provides a lighting device 1 in which a second aperture (not shown) is provided in the lighting source 70. The second aperture is coaxially arranged with the lens of the lighting source 70. The second aperture is connected to a second adjusting device 63. The second adjusting device 63 is used to adjust the aperture size of the second aperture. The second adjusting device 63 is connected to a third driving component 6. The third driving component 6 is used to drive the second adjusting device 63 to move along the circumference of the second aperture ( Figure 3The second adjusting device 63 is rotated in the direction M (as shown in the middle) to adjust the aperture size of the second diaphragm. Exemplarily, the second adjusting device 63 has the same structure as the first adjusting device 40 of the above-mentioned embodiment.

[0096] It should be noted that the specific type of the second adjustment device 63 is not limited, as long as it can adjust the aperture size of the second aperture.

[0097] Thus, the lighting device 1 of the present invention electrically controls the aperture size of the second aperture in the lighting light source 70 through the third driving assembly 6, has good lighting effect and is easy to use. Exemplarily, based on the above embodiment, the height of the condenser 20 in the first direction can be adjusted, and the aperture size of the first aperture in the condenser 20 can be adjusted, so that after the lighting device 1 of the present invention is installed on a microscope, the imaging quality of the microscope is good.

[0098] refer to Figure 2 and Figure 3 , the lighting device 1 further includes: a support portion fixedly installed relative to the illumination light source 70. In this embodiment, the support portion fixedly installed relative to the illumination light source 70 includes: a fifth support portion 60, the fifth support portion 60 is fixedly mounted on the aforementioned first support portion 11, and the illumination light source 70 is disposed on the fifth support portion 60. In this embodiment, along the first direction, the illumination light source 70 is located below the condenser 20, and the condenser 20 is used to converge the illumination light of the illumination light source 70 and illuminate the sample placed on the stage of the microscope with the illumination light. In this embodiment, along the direction perpendicular to the second support portion 12 ( Figure 1 and Figure 3 As shown in the middle direction, one end of the fifth support portion 60 is connected to the first support portion 11, and the other end is connected to the stopper mounting main board 80. That is, the fifth support portion 60 is parallel to the mounting main board 10.

[0099] The third driving assembly 6 includes: a second motor 61 , a second synchronous wheel 62 , and a second synchronous belt 65 .

[0100] The second motor 61 is installed on a support portion fixedly installed relative to the lighting light source 70, and is arranged at intervals from the lighting light source 70. Exemplarily, the second motor 61 is installed on the fifth support portion 60, that is, the second motor 61 and the lighting light source 70 are installed on the fifth support portion 60 at the same time, so that the lighting device 1 has a compact structure. Among them, the number of the fifth support portion 60 can be one or more. In addition, in this embodiment, the second output shaft 66 of the second motor 61 extends along the first direction and is arranged at intervals from the lighting light source 70; the second synchronous wheel 62 is fixedly provided on the second output shaft 66, and the second synchronous wheel 62 rotates synchronously with the second output shaft 66. One end of the second synchronous belt 65 is sleeved on the second adjustment device 63, and the other end is sleeved on the second synchronous wheel 62. When the second motor 61 works, the second synchronous wheel 62 rotates in the circumferential direction, and the second adjustment device 63 is driven to rotate in the circumferential direction through the second synchronous belt 65.

[0101] In this embodiment, the second adjusting device 63 is connected to the third driving assembly 6, and the third driving assembly 6 is used to drive the second adjusting device 63 to move in the circumferential direction ( Figure 2 The second adjusting device 63 is rotated in the direction of M (as shown in the middle) to adjust the aperture size of the second aperture in the illumination light source 70. Exemplarily, the angle range of the second adjusting device 63 in the circumferential direction forward or reverse rotation is between 0° and 120°. Exemplarily, the third driving component 6 drives the second adjusting device 63 to rotate forward in the circumferential direction to adjust the aperture of the second aperture to become larger, and the third driving component 6 drives the second adjusting device 63 to reverse in the circumferential direction to adjust the aperture of the second aperture to become smaller. Thus, the illumination device 1 of the present invention electrically controls the aperture size of the second aperture in the illumination light source 70 through the third driving component 6, is easy to use, has a high degree of automation, and improves the aperture diameter changing efficiency.

[0102] Exemplarily, it also includes: a third connecting member 64, which is arranged around the second adjusting device 63 and can rotate synchronously with the second adjusting device 63, and one end of the second synchronous belt 65 is sleeved on the third connecting member 64. The third connecting member 64 plays a role in fastening the second adjusting device 63, so that the second adjusting device 63 can move synchronously with the third connecting member 64. When the second motor 61 is working, the second synchronous wheel 62 rotates in the circumferential direction, and the third connecting member 64 is driven to rotate through the second synchronous belt 65, and then the second adjusting device 63 rotates in the circumferential direction, so as to adjust the aperture size of the second aperture in the illumination light source 70.

[0103] Exemplarily, the second motor 61 and the illumination light source 70 are spaced apart from each other along the second direction. Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, the second motor 61 is provided with a second bolt hole, and the fifth support portion 60 is provided with a second slide groove 601. Exemplarily, the second slide groove 601 is a U-shaped groove. The second slide groove 601 is along the second direction ( Figure 2, Figure 3 , Figure 5 The fifth support portion 60 extends in the X direction and is used to be fixedly connected to the second bolt hole by bolts after the second motor 61 moves a set distance along the second direction. In some possible implementations, the fifth support portion 60 may be provided with a second bolt hole, and the second motor 61 may be provided with a second slide groove 601.

[0104] After such configuration, by changing the distance between the second motor 61 and the lighting source 70 in the second direction, the distance between the second synchronous wheel 62 and the lighting source 70 in the second direction is changed, and then the tightness of the second synchronous belt 65 sleeved on the third connecting member 64 can be changed.

[0105] For example, if the second synchronous belt 65 is too loosely mounted on the third connecting member 64, the distance between the second motor 61 and the illumination light source 70 in the second direction is increased. Specifically, the bolts connecting the second slide slot 601 and the second bolt hole are loosened; the second motor 61 is moved along the second direction, during which the second slide slot 601 moves relative to the second bolt hole along the second direction, and after the second synchronous belt 65 is mounted on the third connecting member 64 to a suitable tightness, the bolts connecting the second slide slot 601 and the second bolt hole are tightened to achieve a fixed connection.

[0106] Continue to refer Figures 1 to 6 The third driving assembly 6 of the present application further includes: a second limiting portion, which can limit the second synchronous belt 65 from moving in the first direction during the rotation process. That is, by setting the second limiting portion, the second synchronous belt 65 is prevented from moving in the first direction during the rotation process. The second motor 61 drives the second synchronous belt 65 to rotate reliably and stably in the circumferential direction, and then reliably and stably drives the third connecting member 64 to rotate in the circumferential direction, and finally reliably and stably drives the second adjusting device 63 to rotate forward or reverse along the circumferential direction with the third connecting member 64, so as to change the aperture size of the second aperture in the illumination light source 70.

[0107] In some possible implementations, the structure of the second limiting portion and Figure 6 The structure of the first limiting part shown is the same. That is, the second limiting part includes: a third recessed part (with the same structure as the second recessed part 531) provided on the outer peripheral surface of the third connection 64, one end of the second synchronous belt 65 sleeved on the third connection 64 is located in the third recessed part, and the third recessed part limits the movement of the second synchronous belt 65 along the first direction during the rotation process. Equivalently, after the second synchronous belt 65 is sleeved on the third connection 64, the third recessed part clamps the second synchronous belt 65, so that the second synchronous belt 65 will not move along the first direction, thereby improving the reliability of the second synchronous belt 65 rotating in the circumferential direction.

[0108] Exemplarily, the third connection 64 is a second sheet metal part, and the two ends of the second sheet metal part are fixedly connected and arranged around the second adjustment device 63. Figure 3As shown, two ends of the third connection 64 in the circumferential direction are butt-jointed and fixed by bolts 641 to fasten the second adjustment device 63 .

[0109] Exemplarily, the first sliding member 21 passes through the fifth supporting portion 60 in the vertical direction, and the structure of the lighting device 1 is compact.

[0110] Continue to refer Figures 2 to 5 , the lighting device 1 of the present invention further includes: a second limiter 82 and a second limiter 81 cooperating with the second limiter 82. The second limiter 82 is mounted on the limiter mounting mainboard 80, but is not limited thereto. The second limiter 81 is arranged on the second motor 61. In this embodiment, the second motor 61 is a dual-axis motor. The second motor 61 has a fourth output shaft, which is located on the opposite side of the second motor 61 from the second output shaft 66. The fourth output shaft is connected to the fourth coupling 6a, and the second limiter 81 is arranged on the fourth coupling 6a. The second limiter 81 can rotate along the circumferential direction at a set angle until it touches the second limiter 82, and the second motor 61 stops working.

[0111] Equivalently, when the second motor 61 drives the second output shaft 66 to rotate in the circumferential direction, the fourth output shaft of the second motor 61 will also rotate in the circumferential direction, and at the same time, the second stopper 81 will also rotate in the circumferential direction. Since the aperture size of the second aperture needs to be adjusted by the forward or reverse rotation of the second motor 61. Correspondingly, the second stopper 81 will also rotate forward or reverse. Therefore, a plurality of second stoppers 82 are provided on the stopper mounting mainboard 80, and the plurality of second stoppers 82 are arranged at intervals along the rotation direction of the second stopper 81. The number of the second stoppers 82 is not limited, and illustratively, there are two second stoppers 82 arranged at intervals along the circumferential direction.

[0112] The corresponding setting is made according to the aperture size adjustment of the second aperture in the illumination light source 70. For example, after the second motor 61 drives the second adjustment device 63 to rotate 60° in the circumferential direction, the second limiter 81 rotates and touches one of the second limiters 82, and the second motor 61 stops working; after the second motor 61 continues to drive the second adjustment device 63 to rotate 60° in the circumferential direction, the second limiter 81 rotates and touches another second limiter 82, and the second motor 61 stops working.

[0113] After such arrangement, the range of circumferential rotation of the second adjusting device 63 is limited, preventing the second adjusting device 63 from rotating circumferentially without restriction, thereby damaging the lighting source 70 and extending the service life of the lighting device 1; at the same time, the adjustment accuracy of the aperture size of the second aperture in the lighting source 70 is improved.

[0114] Exemplarily, the second motor 61 and the illumination light source 70 are spaced apart along the second direction. As mentioned above, in order to adjust the tightness of the second synchronous belt 65, the distance between the second motor 51 and the illumination light source 70 in the second direction can be adjusted. When the distance between the second motor 51 and the illumination light source 70 in the second direction changes, the distance between the second stopper 81 provided on the second motor 51 and the second stopper 82 will also change.

[0115] In order not to affect the cooperation between the second stopper 81 and the second stopper 82, Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, the portion of the stopper mounting main board 80 that is attached to the fifth support portion 60 is provided with a fifth slide groove 801, and the fifth support portion 60 is provided with a fifth bolt hole. Exemplarily, the fifth slide groove 801 is a U-shaped groove. The fifth slide groove 801 is along the second direction ( Figure 2 , Figure 3 , Figure 5 The fifth support portion 60 may be provided with a fifth slide groove 801, and the fifth bolt hole may be provided on the stopper mounting mainboard 80 after the stopper mounting mainboard 80 moves a set distance along the second direction.

[0116] After such arrangement, when the distance between the second motor 61 and the illumination light source 70 in the second direction changes, the distance between the stopper mounting mainboard 80 and the illumination light source 70 in the second direction is adjusted accordingly, thereby adaptively adjusting the distance between the second stopper 81 provided on the second motor 61 and the second stopper 82. It is ensured that the second stopper 81 can rotate in the circumferential direction by a set angle until it touches the second stopper 82, and the second motor 61 stops working.

[0117] Exemplary, reference Figure 2 , Figure 3 , Figure 5 and Figure 7 , a sixth slide groove 802 is provided on the limiter mounting main board 80, and a sixth bolt hole is provided on the second limiter 82. Exemplarily, the sixth slide groove 802 is a U-shaped groove. The sixth slide groove 802 is used to be fixedly connected with the sixth bolt hole by bolts after the second limiter 82 moves a set distance along the extension direction of the sixth slide groove 802. Among them, after the second limiter 82 moves a set distance along the extension direction of the sixth slide groove 802, the second limiter 81 can be changed to rotate in the circumferential direction to touch the second limiter 82. In some possible embodiments, the limiter mounting member 52 may be provided with a sixth bolt hole, and the second limiter 82 may be provided with a sixth slide groove 802.

[0118] As mentioned above, in order to adjust the tightness of the second synchronous belt 65, the distance between the second motor 61 and the lighting light source 70 can be adjusted. When the distance between the second motor 61 and the lighting light source 70 in the second direction changes, the distance between the second limiter 81 provided on the second motor 61 and the second limiter 82 will be adaptively adjusted. In order to prevent deviations in the adjustment of the distance between the second limiter 81 and the second limiter 82, the angle at which the second limiter 81 rotates circumferentially until it touches the second limiter 82 will change. In the present application, the second limiter 82 can be moved a set distance along the extension direction of the sixth slide groove 802, so that the angle at which the second limiter 81 rotates circumferentially until it touches the second limiter 82 will change, ensuring that the second limiter 81 can rotate circumferentially at a set angle until it touches the second limiter 82, and the second motor 61 stops working.

[0119] In some possible implementations, the range of the circumferential rotation of the second adjustment device 63 can be adjusted according to the adjustment range of the aperture size of the second aperture in the illumination light source 70. For example, as the adjustment range of the aperture size of the second aperture in the illumination light source 70 increases, the range of the circumferential rotation of the second adjustment device 63 also increases, thereby moving the second stopper 82 along the extension direction of the sixth slide groove 802 by a set distance, so that the angle at which the second stopper 81 rotates in the circumferential direction until it touches the second stopper 82 increases.

[0120] It should be noted that the type of the third driving assembly 6 is not limited thereto, and it only needs to be able to drive the second adjusting device 63 to rotate in the circumferential direction to adjust the aperture size of the second aperture in the illumination light source 70 .

[0121] The present invention also provides a microscope, comprising: a stage (not shown) for placing an observation sample; and an illumination device 1 as described in any of the above embodiments, wherein the condenser 20 in the illumination device 1 is installed between the stage and an illumination light source 70, and the illumination light source 70 is used to illuminate the observation sample.

[0122] In summary, the above embodiments provided by the present invention are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A lighting device installed on a microscope, characterized in that: include: A first supporting portion extending along a first direction; A condenser lens, disposed on the first supporting portion; A first sliding member, fixed to the first supporting portion and extending along the first direction; A second sliding member connected to the condenser lens, wherein the second sliding member cooperates with the first sliding member, and the second sliding member and the first sliding member can slide relative to each other in the first direction; A first driving assembly, disposed on the first supporting portion, for driving the condenser to move relative to the first supporting portion along the first direction; A first aperture, provided on the condenser to be coaxially arranged with the lens of the condenser; a first adjusting device, connected to the first diaphragm, and used to adjust the aperture size of the first diaphragm; a second driving assembly connected to the first adjusting device, and configured to drive the first adjusting device to rotate along the circumference of the first aperture to adjust the aperture size of the first aperture; The second driving assembly comprises: A second connecting member, the second connecting member is arranged around the condenser in a manner of being rotatable along the circumferential direction; A first motor is spaced apart from the condenser and installed on a support portion fixedly installed relative to the condenser, wherein a first output shaft of the first motor extends along the first direction; A first synchronous wheel, fixedly mounted on the first output shaft; A first synchronous belt, one end of which is sleeved on the second connecting piece, and the other end of which is sleeved on the first synchronous wheel, wherein the first adjusting device extends radially out of the second connecting piece and into the first synchronous belt to be fixedly connected with the first synchronous belt; An illumination light source is provided on the first supporting portion, and along the first direction, the illumination light source and the condenser are arranged at intervals; A second aperture, provided on the illumination light source, and arranged coaxially with the lens of the illumination light source; a second adjusting device, connected to the second diaphragm, and used to adjust the aperture size of the second diaphragm; a third driving assembly connected to the second adjusting device, and configured to drive the second adjusting device to rotate along the circumference of the second aperture to adjust the aperture size of the second aperture; The third driving assembly comprises: a third connecting member, the third connecting member being arranged around the second adjusting device and being capable of rotating synchronously with the second adjusting device; A second motor is spaced apart from the illumination light source and installed on a support portion fixedly installed relative to the illumination light source, and a second output shaft of the second motor extends along the first direction; A second synchronous wheel, fixedly mounted on the second output shaft; One end of the second synchronous belt is sleeved on the third connecting member, and the other end is sleeved on the second synchronous wheel.

2. The lighting device according to claim 1, characterized in that The first limiting portion can limit the first synchronous belt from moving along the first direction during rotation.

3. The lighting device according to claim 2, characterized in that The first limiting part comprises: a plurality of first rollers arranged at intervals along the circumferential direction, each of the first rollers being mounted on a first rotating shaft in a manner rotatable along the circumferential direction, the first rotating shaft extending along the first direction and being mounted on the condenser; A first recess is formed on the outer peripheral surface of each first roller, and the second connecting member is disposed around the plurality of first rollers and is located in all the first recesses; When the first synchronous belt drives the second connecting member to rotate along the circumferential direction, each first roller rotates along the circumferential direction relative to the first rotating shaft.

4. The lighting device according to claim 3, characterized in that One end of the first synchronous belt sleeved on the second connecting member is located in at least a portion of the first recess, and at least a portion of the first recess restricts the first synchronous belt from moving along the first direction during rotation.

5. The lighting device according to claim 3, characterized in that The first limiting portion also includes: a second recessed portion provided on the outer circumferential surface of the second connecting member, one end of the first synchronous belt sleeved on the second connecting member is located in the second recessed portion, and the second recessed portion limits the first synchronous belt from moving along the first direction during rotation.

6. The lighting device according to claim 2, characterized in that The second connecting member is a first sheet metal member, and two ends of the first sheet metal member are butt-jointed and fixed and then arranged around the condenser.

7. The lighting device according to claim 2, characterized in that The support portion fixedly mounted relative to the condenser comprises: A second supporting portion, wherein the second supporting portion is connected to the condenser and the second sliding member respectively; The fourth supporting portion is fixedly arranged on the second supporting portion, and the first motor is installed on the fourth supporting portion.

8. The lighting device according to claim 1, characterized in that The second limiting portion can limit the second synchronous belt from moving along the first direction during rotation.

9. The lighting device according to claim 8, characterized in that The second limiting portion includes: a third recessed portion provided on the outer circumferential surface of the third connecting member, one end of the second synchronous belt sleeved on the third connecting member is located in the third recessed portion, and the third recessed portion limits the second synchronous belt from moving along the first direction during rotation.

10. The lighting device according to claim 8, characterized in that The third connecting member is a second sheet metal member, and two ends of the second sheet metal member are butt-jointed and fixed and then disposed around the second adjusting device.

11. The lighting device according to claim 8, characterized in that The support portion fixedly mounted relative to the illumination light source comprises: a fifth support portion fixedly mounted on the first support portion, the illumination light source being disposed on the fifth support portion, and the second motor being mounted on the fifth support portion.

12. The lighting device according to claim 1, characterized in that Along a second direction, the first driving assembly and the first sliding member are respectively located at opposite sides of the first supporting portion, and the second direction is a direction perpendicular to the first supporting portion.

13. The lighting device according to claim 12, characterized in that Along the third direction, the maximum width of the first driving component is less than or equal to the width of the first supporting portion, and the first direction, the second direction and the third direction are perpendicular to each other.

14. The lighting device according to claim 12, characterized in that Also includes: A second supporting part and a first connecting member, wherein the second supporting part is respectively connected to the condenser and the second sliding member, the first connecting member is respectively attached to the second supporting part and the driving part of the first driving component, and the first connecting member can move relative to the first driving component along the first direction.

15. The lighting device according to claim 14, characterized in that The first connecting member includes a first part, a second part and a third part connected in sequence, wherein the first part of the first connecting member is attached to the part of the driving part of the first driving component facing away from the first supporting part, and the third part of the first connecting member is attached to the part of the second supporting part facing the first supporting part.

16. The lighting device according to claim 14, characterized in that The first driving assembly includes: a first screw rod extending along the first direction; a first screw rod nut sleeved on the first screw rod, the first screw rod nut is connected to the condenser through the first connecting member, and the first screw rod nut serves as the driving part of the first driving assembly.

17. The lighting device according to claim 14, characterized in that Also includes: A third supporting part, wherein the third supporting part is vertically connected to the second supporting part, and the condenser is arranged on the third supporting part.

18. The lighting device according to claim 7, characterized in that The first motor and the condenser are spaced apart along a third direction, and the third direction is perpendicular to the first direction; one of the second support part and the fourth support part is provided with a first slide groove, and the other is provided with a first bolt hole; the first slide groove extends along the third direction, and is used for being fixedly connected with the first bolt hole by bolts after the fourth support part moves a set distance along the third direction.

19. The lighting device according to claim 11, characterized in that The second motor and the lighting light source are spaced apart along the second direction; one of the second motor and the fifth support portion is provided with a second slide groove, and the other is provided with a second bolt hole; the second slide groove extends along the second direction, and is used to be fixedly connected to the second bolt hole by bolts after the second motor moves a set distance along the second direction.

20. The lighting device according to claim 7, characterized in that The first motor is a dual-axis motor, and the first motor has a third output shaft, which is located on the opposite side of the first motor as the first output shaft; the lighting device also includes: a first limiter and a first limit piece cooperating with the first limiter, the first limiter is installed on the second support part through a limiter mounting piece, and the first limit piece is arranged on the third output shaft; wherein, the first limit piece can rotate along the circumferential direction at a set angle until it touches the first limiter, and the first motor stops working.

21. The lighting device according to claim 20, characterized in that The first motor and the condenser are arranged at intervals along the third direction, the limiter mounting member and the fourth supporting portion are arranged at intervals along the first direction, and the third direction is perpendicular to the first direction; one of the second supporting portion and the limiter mounting member is provided with a third slide groove, and the other is provided with a third bolt hole; the third slide groove extends along the third direction, and is used for being fixedly connected with the third bolt hole by bolts after the limiter mounting member moves a set distance along the third direction.

22. The lighting device according to claim 21, characterized in that One of the limiter mounting member and the first limiter is provided with a fourth slide groove, and the other is provided with a fourth bolt hole; the fourth slide groove is used to be fixedly connected with the fourth bolt hole by bolts after the first limiter moves a set distance along the extension direction of the fourth slide groove; wherein, after the first limiter moves a set distance along the extension direction of the fourth slide groove, the first limiter can be changed to rotate along the circumferential direction to touch the first limiter.

23. The lighting device according to claim 11, characterized in that One end of the fifth support portion is connected to the first support portion, and the other end is connected to the limiter mounting mainboard; the second motor is a dual-axis motor, and the second motor has a fourth output shaft, which is located on the opposite side of the second motor to the second output shaft; The lighting device also includes: a second limiter and a second limit piece cooperating with the second limiter, the second limiter is installed on the limiter installation mainboard, and the second limit piece is arranged on the fourth output shaft; wherein, the second limit piece can rotate along the circumferential direction at a set angle until it touches the second limiter, and the second motor stops working.

24. The lighting device according to claim 23, characterized in that One of the fifth support portion and the limiter mounting main board is provided with a fifth slide groove, and the other is provided with a fifth bolt hole; the fifth slide groove extends along the second direction, and is used to be fixedly connected with the fifth bolt hole by bolts after the limiter mounting main board moves a set distance along the second direction.

25. The lighting device according to claim 24, characterized in that One of the limiter mounting main board and the second limiter is provided with a sixth slide groove, and the other is provided with a sixth bolt hole; the sixth slide groove is used to be fixedly connected with the sixth bolt hole by bolts after the second limiter moves a set distance along the extension direction of the sixth slide groove; wherein, after the second limiter moves a set distance along the extension direction of the sixth slide groove, the second limiter can be changed to rotate along the circumferential direction to touch the second limiter.

26. A microscope, characterized in that: include: A stage for placing observation samples; The lighting device according to any one of claims 1 to 25, wherein the condenser is installed between the stage and the lighting light source, and the lighting light source is used to illuminate the observation sample.

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