Auto-focusing structure and microscopic raman imager

Abstract

The utility model relates to an automatic focusing structure and microscopic raman imager, it includes: casing, friction piece and rotary piece, casing is cylindrical structure, casing is set outside the coarse adjustment knob and fine adjustment knob to be detachably connected with the coarse adjustment knob. Friction piece is located in the casing, and the anti -skid portion is established on the friction piece, and the anti -skid portion is through the abutment fine adjustment knob's outer wall. Rotary piece is installed in the casing, and rotary piece, friction piece and fine adjustment knob are sequentially arranged in the axial direction of fine adjustment knob, and the output end of rotary piece is connected with friction piece.

Description

Technical Field

[0001] This utility model relates to the field of microscopy, and more specifically, to an autofocus structure and a micro Raman imager. Background Technology

[0002] A micro Raman imager is an analytical instrument that combines microscopic imaging and Raman spectroscopy. It achieves qualitative analysis of the composition of substances and micro-area imaging by detecting the Raman scattering signals of molecules. It is widely used in a variety of fields such as new material testing, cell metabolism, biomedicine, and gem identification.

[0003] The development trend of micro Raman imagers is gradually transitioning from traditional manual focusing to electric focusing. Achieving accurate and high-speed focusing is crucial for rapidly measuring the Raman spectrum of the object being measured. Current technology involves disassembling existing micro Raman imagers and modifying their hardware to enable switching the focusing mode from manual to electric. However, hardware modification presents challenges due to installation barriers and high risks. Utility Model Content

[0004] The purpose of this invention is to provide an autofocus structure and a micro Raman imager, and the technical problem it solves is: how to reduce the installation threshold and risk.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] On one hand, this utility model provides an autofocus structure for use with the focusing assembly of a micro Raman imager. The focusing assembly includes a coarse adjustment knob and a fine adjustment knob arranged coaxially. It includes: a housing with a cylindrical structure, which is sleeved on the coarse adjustment knob and the fine adjustment knob and is detachably connected to the coarse adjustment knob; a friction member located inside the housing, which has an anti-slip part and abuts against the outer wall of the fine adjustment knob through the anti-slip part; and a rotating member installed inside the housing. The rotating member, the friction member, and the fine adjustment knob are arranged sequentially in the axial direction of the fine adjustment knob, and the output end of the rotating member is connected to the friction member.

[0007] In some embodiments of this application, the housing has at least two connection holes, and the connection holes are arranged circumferentially around the housing. The autofocus structure further includes a pressure ring and fastening screws. The pressure ring is sleeved on the coarse adjustment knob and located between the coarse adjustment knob and the housing. The number of fastening screws is the same as the number of connection holes, and each fastening screw is arranged in a one-to-one correspondence with each connection hole. The fastening screw passes through the connection hole and forms a screw connection with the connection hole. One end of the fastening screw presses the pressure ring against the outer peripheral wall of the coarse adjustment knob.

[0008] In some embodiments of this application, the housing is provided with a clearance hole, which is located in the arrangement direction of the rotating member and the friction member, and on the side of the rotating member away from the friction member; the autofocus structure further includes a conductive slip ring, which is annular in shape and embedded in the clearance hole, and the conductive slip ring allows the wire of the rotating member to pass through and extend out of the housing.

[0009] In some embodiments of this application, the micro Raman imager includes a base, a microscope assembly, and a stage. The base is provided with the focusing assembly, the microscope assembly, and the stage, and the microscope assembly and the stage are arranged vertically opposite to each other. The microscope assembly or the stage is connected to the fine-tuning knob and can be raised and lowered relative to the base. The autofocus structure also includes a distance sensor, which is mounted on the microscope assembly and is correspondingly arranged with the stage.

[0010] In some embodiments of this application, the friction element includes a body and a plurality of protrusions arranged in a dot matrix pattern. The body is connected to the output end of the rotating element, and each of the protrusions forms the anti-slip portion.

[0011] On the other hand, this utility model provides a micro Raman imager, which includes: a base, a microscopic component, a stage, and an autofocus structure as described in any of the above embodiments. The base is provided with a coaxially arranged coarse adjustment knob and a fine adjustment knob. The microscopic component and the stage are arranged vertically opposite to each other on the base. The microscopic component or the stage is connected to the fine adjustment knob and can be raised and lowered relative to the base. The rotating component drives the fine adjustment knob to rotate through the friction component, thereby driving the stage or the microscopic component to rise or fall relative to the base.

[0012] In some embodiments of this application, the coarse adjustment knob and the fine adjustment knob are arranged in groups, and there are two groups. The two groups of coarse adjustment knobs and fine adjustment knobs are respectively located on opposite horizontal sides of the base, and one group of coarse adjustment knobs and fine adjustment knobs corresponds to and matches the autofocus structure.

[0013] In some embodiments of this application, the base is C-shaped and includes a first part, a second part, and a third part. The first part and the second part are arranged vertically opposite each other, and the third part extends vertically and is connected to the first part and the second part respectively. The first part is provided with the microscopic components, the second part is used to support the stage, and the third part has a guide groove extending vertically. The micro Raman imager also includes a sliding seat, which is slidably inserted in the guide groove and used to support the stage. The sliding seat slides in the guide groove to drive the stage to rise or fall between the first part and the second part.

[0014] In some embodiments of this application, the sliding seat includes a main body, a connecting part, and a supporting part. The main body is located within the third part, the supporting part is used to support the stage, and the connecting part passes through the guide groove and is connected to the main body and the supporting part respectively. The micro Raman imager also includes an extension seat, which is located within and connected to the third part. An extension groove is formed between the extension seat and the inner wall of the third part, and the main body is slidably disposed within the extension groove.

[0015] In some embodiments of this application, the bottom of the third part is provided with a lower limit switch, and the top of the extension seat is provided with an upper limit switch; the main body is provided with an upper limit sensor and a lower limit sensor, and when the main body slides up in the extension groove, the upper limit sensor can cooperate with the upper limit switch, and when the main body slides down in the extension groove, the lower limit sensor can cooperate with the lower limit switch.

[0016] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects: In the autofocus structure of this embodiment, the housing serves as the base and frame of the entire device. Mounted on the coarse adjustment knob, it ensures the stability and safety of the overall structure. During operation, the rotating component moves, driving the friction component connected to its output end to rotate. The friction between the friction component and the rotating component drives the fine adjustment knob to rotate synchronously, achieving rapid and precise control of the original fine adjustment mechanism, thus achieving accurate and high-speed focusing. This autofocus structure can be installed externally as a whole, without disassembling the original structure for internal modifications. This lowers the installation threshold and avoids the risks of instrument damage, optical path misalignment, or warranty voiding caused by internal modifications. Attached Figure Description

[0017] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein: Figure 1 This is a schematic diagram of an autofocus structure according to an exemplary embodiment.

[0018] Figure 2 This is a schematic diagram of a micro Raman imager according to an exemplary embodiment.

[0019] Figure 3 yes Figure 2 A structural diagram from another perspective.

[0020] Figure 4 yes Figure 2 A sectional view.

[0021] Figure 5 yes Figure 2 An enlarged schematic diagram of the autofocus structure.

[0022] The annotations in the attached figures are explained as follows: 1. Autofocus structure; 11. Housing; 111. Connecting hole; 112. Clearance hole; 12. Friction component; 121. Body; 122. Protrusion; 13. Rotating component; 14. Pressure ring; 15. Fastening screw; 16. Conductive slip ring; 2. Base; 21. First part; 22. Second part; 23. Third part; 231. Guide groove; 232. Lower limit switch; 3. Microscopic components; 4. Stage; 5. Coarse adjustment knob; 6. Fine-tuning knob; 7. Sliding base; 71. Main body; 711. Upper limit sensor; 712. Lower limit sensor; 72. Connecting part; 73. Support part; 8. Extension seat; 81. Extension slot; 82. Upper limit switch. Detailed Implementation

[0023] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0024] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0025] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0026] Please see Figure 1 and Figure 5 On one hand, this utility model provides an autofocus structure 1. In one embodiment, the autofocus structure 1 is used in conjunction with the focusing assembly of a micro Raman imager. The focusing assembly includes a coarse adjustment knob 5 and a fine adjustment knob 6 arranged coaxially. The autofocus structure 1 mainly includes a housing 11, a friction element 12, and a rotating element 13. The housing 11 has a cylindrical structure and is sleeved around the coarse adjustment knob 5 and the fine adjustment knob 6, and is detachably connected to the coarse adjustment knob 5. The friction element 12 is located inside the housing 11 and has an anti-slip portion, which abuts against the outer wall of the fine adjustment knob 6. The rotating element 13 is installed inside the housing 11, and the rotating element 13, the friction element 12, and the fine adjustment knob 6 are arranged sequentially along the axial direction of the fine adjustment knob 6. The output end of the rotating element 13 is connected to the friction element 12.

[0027] In the autofocus structure 1 of this embodiment, the housing 11 serves as the base and frame of the entire device. It is mounted on the coarse adjustment knob 5, ensuring the overall stability and safety of the structure. During operation, the rotating component 13 moves, driving the friction component 12 connected to its output end to rotate. The friction component 12, through the friction between itself and the rotating component 13, drives the fine adjustment knob 6 to rotate synchronously, achieving rapid and precise control of the original fine adjustment mechanism, thereby achieving accurate and high-speed focusing. This autofocus structure 1 can be installed as a whole from the outside of the focusing assembly, without disassembling the original structure for internal modifications. This lowers the installation threshold and avoids the risks of instrument damage, optical path misalignment, or loss of warranty due to internal modifications.

[0028] It is conceivable that the autofocus structure 1 can be installed and used by matching the size of the coarse adjustment knob 5 and fine adjustment knob 6 of the target micro Raman imager. Theoretically, it can be adapted to a variety of brands and models, and has the characteristics of high applicability and versatility.

[0029] It should be noted that the friction element 12 abuts against the outer wall of the fine-tuning knob 6 through the anti-slip part. This can be achieved by the friction element 12 having a disc-shaped structure with an anti-slip part on the side facing the outer end wall of the fine-tuning knob 6, and abutting against the outer end wall of the fine-tuning knob 6 through the anti-slip part. Alternatively, the friction element 12 can have a groove-shaped structure and be wrapped around the fine-tuning knob 6. Both the bottom wall and the side wall of the groove of the friction element 12 have anti-slip parts. The bottom wall of the groove of the friction element 12 abuts against the outer end wall of the fine-tuning knob 6 through the anti-slip part, and the side wall of the groove of the friction element 12 abuts against the outer peripheral wall of the fine-tuning knob 6 through the anti-slip part.

[0030] In this embodiment, the rotating component 13 is a motor, and the housing 11 is also provided with a motor mounting base for mounting the motor.

[0031] It should be noted that you can first manually adjust the coarse adjustment knob 5 to perform a wide range of initial focusing, and then install the autofocus structure 1 to achieve high-precision and fast focusing with the fine adjustment knob 6.

[0032] Please see Figure 1 , Figure 2 and Figure 5 In a specific embodiment, the housing 11 has at least two connecting holes 111, which are arranged circumferentially around the housing 11. The autofocus structure 1 also includes a pressure ring 14 and fastening screws 15. The pressure ring 14 is sleeved on the coarse adjustment knob 5 and located between the coarse adjustment knob 5 and the housing 11. The number of fastening screws 15 is the same as the number of connecting holes 111, and each fastening screw 15 is arranged in a one-to-one correspondence with each connecting hole 111. The fastening screws 15 pass through the connecting holes 111 and form a screwed connection with the connecting holes 111. One end of the fastening screw 15 presses the pressure ring 14 against the outer peripheral wall of the coarse adjustment knob 5. Through the coordinated cooperation of the fastening screws 15, the housing 11, and the pressure ring 14, a specific and feasible implementation method for mounting the housing 11 on the coarse adjustment knob 5 is provided, which has the characteristics of stable and reliable connection and quick and simple disassembly and assembly. In a specific embodiment, the housing 11 has a clearance hole 112, which is located in the arrangement direction of the rotating member 13 and the friction member 12, and on the side of the rotating member 13 away from the friction member 12. The autofocus structure 1 also includes a conductive slip ring 16, which is annular and embedded in the clearance hole 112. The conductive slip ring 16 allows the wire of the rotating member 13 to pass through and extend out of the housing 11. By providing the clearance hole 112 and the conductive slip ring 16, the wire of the rotating member 13 can be effectively prevented from being tangled or even torn, thereby improving the durability and reliability of the overall structure.

[0033] Please see Figures 1 to 5In a specific embodiment, the micro Raman imager includes a base 2, a microscopic component 3, and a stage 4. The base 2 is equipped with a focusing assembly, the microscopic component 3, and the stage 4, which are arranged vertically opposite each other. The microscopic component 3 or the stage 4 is connected to a fine-tuning knob 6 and can be raised or lowered relative to the base 2. The autofocus structure 1 also includes a distance sensor, which is mounted on the microscopic component 3 and correspondingly positioned to the stage 4. The distance sensor continuously measures the actual working distance between the eyepiece and the stage 4 and transmits it back as a feedback signal. Based on the feedback signal, the rotating component 13 is driven to perform actions with specific rotation speed, direction, and number of revolutions, forming a closed-loop control to ensure automated focusing.

[0034] In this embodiment, the distance sensor is a proximity switch.

[0035] It should be noted that the connection between the microscope component 3 or the stage 4 and the fine-tuning knob 6 can be either a mechanical connection or a signal connection. Furthermore, the component in the microscope component 3 or the stage 4 that connects to the fine-tuning knob 6 also connects to the coarse-tuning knob 5.

[0036] It should be noted that the rotating component 13 and the distance sensor are respectively connected to the control system signal. The control system can be set separately in the autofocus structure 1 or it can be set in the micro Raman imager itself.

[0037] It is conceivable that the autofocus mechanism in the above embodiments can also be applied to other devices that require autofocus, in addition to micro Raman imagers.

[0038] Please see Figures 1 to 5 In a specific embodiment, the friction element 12 includes a body 121 and a plurality of protrusions 122 arranged in a dot matrix. The body 121 is connected to the output end of the rotating element 13, and each protrusion 122 forms an anti-slip portion to generate a uniform and effective frictional force. In other embodiments, the anti-slip portion is a striped protrusion.

[0039] Please see Figures 2 to 4On the other hand, this utility model provides a micro Raman imager, including a base 2, a microscopic component 3, a stage 4, and an autofocus structure 1 of any of the above embodiments. The base 2 is provided with a coaxially arranged coarse adjustment knob 5 and a fine adjustment knob 6. The microscopic component 3 and the stage 4 are arranged vertically opposite each other on the base 2. The microscopic component 3 or the stage 4 is connected to the fine adjustment knob 6 and can be raised and lowered relative to the base 2. The rotating component 13 drives the fine adjustment knob 6 to rotate through the friction component 12, so as to drive the stage 4 or the microscopic component 3 to rise or fall relative to the base 2, thereby providing a complete, ready-to-use, and autofocusable micro Raman imager.

[0040] Please see Figure 2 and Figure 3 In a specific embodiment, the coarse adjustment knob 5 and the fine adjustment knob 6 are arranged in groups, and there are two groups. The two groups of coarse adjustment knobs 5 and fine adjustment knobs 6 are respectively located on the horizontal opposite sides of the base 2, and one group of coarse adjustment knobs 5 and fine adjustment knobs 6 corresponds to and matches the autofocus structure 1.

[0041] The other set of coarse adjustment knobs 5 and fine adjustment knobs 6, which are not matched with the autofocus structure 1, retain the pure manual operation feel and function. Users can freely choose the operation mode according to the task requirements, thereby enhancing the overall applicability and user experience of the device. On the other hand, when a wide range of focusing is required, users can directly use the coarse adjustment knob 5 in the other set of coarse adjustment knobs 5 and fine adjustment knobs 6 without removing the autofocus structure 1, further improving the user experience.

[0042] It should be noted that the microscope component 3 or the stage 4 is connected to the fine adjustment knob 6 and can be raised and lowered relative to the base 2. Alternatively, the microscope component 3 can be connected to the fine adjustment knob 6 and the microscope component 3 can be raised and lowered relative to the base 2, or the stage 4 can be connected to the fine adjustment knob 6 and the stage 4 can be raised and lowered relative to the base 2.

[0043] Please see Figures 2 to 4 In a specific embodiment, the base 2 is C-shaped and includes a first part 21, a second part 22, and a third part 23. The first part 21 and the second part 22 are arranged vertically opposite each other, and the third part 23 extends vertically and is connected to the first part 21 and the second part 22 respectively. The first part 21 is provided with a microscopic component 3, the second part 22 is used to support the stage, and the third part 23 has a guide groove 231 extending vertically. The micro Raman imager also includes a sliding seat 7, which is slidably inserted in the guide groove 231 and used to support the stage 4. The sliding seat 7 slides in the guide groove 231 to drive the stage 4 to rise or fall between the first part 21 and the second part 22.

[0044] The specific structure of the base 2 gives it a certain rigidity and stability. Furthermore, through the cooperation between the microscopic component 3 and the first part 21, the sliding seat 7 and the third part 23, and the sliding seat 7 and the stage 4, a specific and feasible structural design is provided for the micro Raman imager, ensuring the stability and reliability of the overall structure.

[0045] Please see Figure 4 In a specific embodiment, the sliding seat 7 includes a main body 71, a connecting part 72, and a supporting part 73. The main body 71 is located within the third part 23, the supporting part 73 supports the stage 4, and the connecting part 72 passes through the guide groove 231 and is connected to the main body 71 and the supporting part 73 respectively. The micro Raman imager also includes an extension seat 8, which is located within and connected to the third part 23. An extension groove 81 is formed between the extension seat 8 and the inner wall of the third part 23, and the main body 71 is slidably disposed within the extension groove 81. Through the sliding engagement of the connecting part 72 with the guide groove 231 and the sliding engagement of the main body 71 with the extension groove 81, dual guidance is provided for the lifting and lowering of the sliding seat 7 and the stage 4, thereby improving the smoothness and accuracy of the movement.

[0046] In this embodiment, a vertically extending guide rail is also provided in the extension groove 81. The guide rail is slidably connected to the main body 71, thereby further improving the stability and accuracy of the movement.

[0047] In this embodiment, the third part 23 is provided with a driving member, which is used to drive the main body 71 to slide up or down in the extension groove 81.

[0048] Please see Figure 4 In a specific embodiment, a lower limit switch 232 is provided at the bottom of the third part 23, and an upper limit switch 82 is provided at the top of the extension seat 8. An upper limit sensor 711 and a lower limit sensor 712 are provided on the main body 71. When the main body 71 slides upward in the extension groove 81, the upper limit sensor 711 can cooperate with the upper limit switch 82. When the main body 71 slides downward in the extension groove 81, the lower limit sensor 712 can cooperate with the lower limit switch 232, thus forming a double-safety hard limit mechanism to further improve the stability and reliability of the entire device. Specifically, the cooperation of the upper limit switch 82 and the upper limit sensor 711 can prevent the stage 4 from rising excessively and impacting the microscopic component 3. The cooperation of the lower limit switch 232 and the lower limit sensor 712 can prevent excessive descent from damaging the mechanical structure or the sample.

[0049] Please see Figure 5 In the above embodiments, the base 2 is provided with a microscope fine adjustment shaft, and the microscope fine adjustment shaft and the fine adjustment knob 6 are connected by a gear shaft.

[0050] In the above embodiments, the microscopic component 3 includes a five-hole nose wheel rotatably disposed on the first part 21 and at least one eyepiece mounted on the five-hole nose wheel.

[0051] In the above embodiments, the third part 23 also includes a circuit board for adjusting components such as the rotating component 13, the fine-tuning knob 6, the coarse-tuning knob 5, the driving component, and the distance sensor. Please refer to... Figure 4 In this embodiment, the circuit board is located on the side of the extension seat 8 facing away from the main body 71 and is connected to the bottom of the third part 23.

[0052] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An autofocus structure for use with a focusing assembly of a micro Raman imager, the focusing assembly comprising a coaxially arranged coarse adjustment knob and a fine adjustment knob, characterized in that, include: The housing has a cylindrical structure and is sleeved over the coarse adjustment knob and the fine adjustment knob, and is detachably connected to the coarse adjustment knob; A friction element is located inside the housing. The friction element is provided with an anti-slip part and abuts against the outer wall of the fine-tuning knob through the anti-slip part. A rotating component is installed inside the housing, and the rotating component, the friction component, and the fine-tuning knob are arranged sequentially along the axial direction of the fine-tuning knob. The output end of the rotating component is connected to the friction component.

2. The autofocus structure according to claim 1, characterized in that, The housing has at least two connection holes, and the connection holes are arranged circumferentially around the housing. The autofocus structure also includes a pressure ring and fastening screws. The pressure ring is sleeved on the coarse adjustment knob and located between the coarse adjustment knob and the housing. The number of fastening screws is the same as the number of connecting holes, and each fastening screw is arranged in a one-to-one correspondence with each connecting hole. The fastening screw passes through the connecting hole and forms a screw connection with the connecting hole, and one end of the fastening screw presses the pressure ring against the outer peripheral wall of the coarse adjustment knob.

3. The autofocus structure according to claim 1, characterized in that, The housing is provided with a clearance hole, which is located in the arrangement direction of the rotating component and the friction component, and is located on the side of the rotating component away from the friction component. The autofocus structure also includes a conductive slip ring, which is ring-shaped and embedded in the clearance hole. The conductive slip ring allows the wires of the rotating component to pass through and extend out of the housing.

4. The autofocus structure according to claim 1, characterized in that, The micro Raman imager includes a base, a microscopic component, and a stage. The base is equipped with the focusing component, the microscopic component, and the stage. The microscopic component and the stage are arranged vertically opposite each other. The microscopic component or the stage is connected to the fine-tuning knob and can be raised and lowered relative to the base. The autofocus structure also includes a distance sensor, which is mounted on the microscope assembly and is correspondingly positioned with respect to the stage.

5. The autofocus structure according to claim 1, characterized in that, The friction element includes a body and a plurality of protrusions arranged in a dot matrix. The body is connected to the output end of the rotating element, and each of the protrusions forms the anti-slip part.

6. A micro Raman imager, characterized in that, The device includes a base, a microscope assembly, a stage, and an autofocus structure as described in any one of claims 1-5. The base is provided with a coaxially arranged coarse adjustment knob and a fine adjustment knob. The microscope assembly and the stage are arranged vertically opposite to each other on the base. The microscope assembly or the stage is connected to the fine adjustment knob and can be raised and lowered relative to the base. The rotating component drives the fine adjustment knob to rotate through the friction component, thereby driving the stage or the microscope assembly to rise or fall relative to the base.

7. The micro Raman imager according to claim 6, characterized in that, The coarse adjustment knob and the fine adjustment knob are arranged in a group, and there are two groups. The two groups of coarse adjustment knobs and fine adjustment knobs are respectively located on opposite horizontal sides of the base, and one group of coarse adjustment knobs and fine adjustment knobs corresponds to and matches the autofocus structure.

8. The micro Raman imager according to claim 6, characterized in that, The base is C-shaped and includes a first part, a second part and a third part. The first part and the second part are arranged vertically opposite each other. The third part extends vertically and is connected to the first part and the second part respectively. The first part is provided with the microscope assembly. The second part is used to support it on the table. The third part is provided with a guide groove extending vertically. The micro Raman imager also includes a sliding seat, which is slidably disposed within the guide groove and used to support the stage. The sliding seat slides within the guide groove to cause the stage to rise or fall between the first part and the second part.

9. The micro Raman imager according to claim 8, characterized in that, The sliding seat includes a main body, a connecting part, and a supporting part. The main body is located within the third part, the supporting part is used to support the platform, and the connecting part passes through the guide groove and is connected to the main body and the supporting part respectively. The micro Raman imager also includes an extension base located within and connected to the third part, and an extension groove is formed between the extension base and the inner wall of the third part, with the main body slidably disposed within the extension groove.

10. The micro Raman imager according to claim 9, characterized in that, The bottom of the third part is provided with a lower limit switch, and the top of the extension seat is provided with an upper limit switch; The main body is provided with an upper limit sensor and a lower limit sensor. When the main body slides upward in the extension groove, the upper limit sensor can cooperate with the upper limit switch. When the main body slides downward in the extension groove, the lower limit sensor can cooperate with the lower limit switch.

Images