Optical light collecting device for an optical microscope

Abstract

The utility model discloses an optical light -receiving device of optical microscope relates to microscope optical technical field, specifically including the base, eyepiece, converter, objective lens, the top fixedly connected with mirror post of base, the top rotatoryly connected with mirror arm of mirror post, the outside of mirror arm is connected with eyepiece sliding, the bottom rotatoryly connected with converter of eyepiece, the bottom fixedly connected with objective lens of converter, the outside of mirror arm is provided with the vertical slideable stage, the center position of stage is equipped with the light transmission hole, the inside mounting of light transmission hole has the light -condensing sheet, the bottom rotatoryly connected with the rotating sheet of stage, the outside sliding of rotating sheet is connected with a plurality of the conical light -shielding sheet of light transmission hole can be shielded, through the sliding cooperation of conical light -shielding sheet and multilateral groove, can quickly adjust the shielding area of light transmission hole, and the light -condensing sheet is matched and enhances the light convergence effect, and the light supplementer can provide auxiliary light source, adapts to the observation demand under different illumination environment, is applicable to the high accuracy observation work under a variety of scenes.

Description

Technical Field

[0001] This utility model relates to the field of microscope optics technology, specifically to an optical light-collecting device for an optical microscope. Background Technology

[0002] As a fundamental observation tool in life sciences, materials science, and other fields, the performance of the light-collecting device of an optical microscope directly affects the image quality. Traditional optical microscopes often have fixed light-collecting structures that cannot quickly adjust the degree of light blocking, making them prone to reflection interference. In addition, the linkage adjustment precision between the stage and optical components in traditional devices is insufficient, further affecting the light-collecting efficiency and imaging effect, making it difficult to meet the actual needs of high-precision observation. Therefore, we propose an optical light-collecting device for optical microscopes. Utility Model Content

[0003] This invention provides an optical light-gathering device for an optical microscope, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An optical light-gathering device for an optical microscope includes a base, an eyepiece, a converter, and an objective lens. A mirror column is fixedly connected to the top of the base, and an arm is rotatably connected to the top of the mirror column. The eyepiece is slidably connected to the outside of the arm. The converter is rotatably connected to the bottom of the eyepiece, and the objective lens is fixedly connected to the bottom of the converter. A vertically sliding stage is provided on the outside of the arm. A light-transmitting hole is opened at the center of the stage, and a condenser is installed inside the light-transmitting hole. A rotating plate is rotatably connected to the bottom of the stage, and multiple conical light-blocking plates that can block the light-transmitting hole are slidably connected to the outside of the rotating plate. A flip-up mirror is rotatably connected to the outside of the arm, and the mirror corresponds to the position of the light-transmitting hole.

[0005] Preferably, the external thread of the mirror post is connected to a tightening screw, the end of which extends into the interior of the mirror post and abuts against the mirror arm.

[0006] Preferably, the external side of the telescope arm is symmetrically rotatably connected to a stage adjustment knob, the stage adjustment knob extends into the interior of the telescope arm and is fixedly connected to a first gear, the bottom of the stage is slidably connected to a sliding platform, the sliding platform is slidably connected to the telescope arm, and the external side of the sliding platform is fixedly connected to a first rack, the first rack meshing with the first gear.

[0007] Preferably, the top of the stage is symmetrically and fixedly connected with a pressure plate clamp, the bottom of the stage is fixedly connected with a light-focusing frame, the outer side of the rotating plate has a polygonal groove, and the conical light-shielding plate is slidably connected to the polygonal groove.

[0008] Preferably, a fixing rod is fixedly connected to the outside of the focusing frame, a second cylindrical rod is fixedly connected to the outside of the conical light-shielding plate, the second cylindrical rod is slidably connected to the fixing rod, and a first cylindrical rod is fixedly connected to the outside of the rotating plate, the first cylindrical rod extending out of the focusing frame and slidably connected to it.

[0009] Preferably, the external end of the telescope arm is symmetrically rotatably connected to an eyepiece adjustment knob, the eyepiece adjustment knob extends into the interior of the telescope arm and is fixedly connected to a second gear, and the external end of the eyepiece is fixedly connected to a second rack, the second rack meshing with the second gear.

[0010] Preferably, a rotating frame is rotatably connected to the outside of the mirror arm, the reflector is rotatably connected to the outside of the rotating frame, and a filler is threadedly connected to the bottom of the reflector.

[0011] Preferably, a fill light is provided at the center of the fill light, and battery slots are symmetrically provided on the outside of the fill light, with batteries installed in the battery slots.

[0012] This utility model has the following beneficial effects: 1. The optical light-gathering device of this optical microscope can quickly adjust the shading area of ​​the light-transmitting aperture by sliding the conical light-blocking plate and the polygonal groove. Combined with the light-condensing plate, it enhances the light-gathering effect. At the same time, the supplementary light device can provide an auxiliary light source, adapting to the observation needs of different lighting environments. It can utilize natural light sources through the reflector, and can also provide its own light source through the supplementary light device, effectively improving the observation clarity in low-light environments. It is suitable for high-precision observation work in various scenarios.

[0013] 2. The optical light-gathering device of this optical microscope achieves precise positioning and smooth adjustment of components such as the stage and eyepiece through the meshing transmission of the first gear and the first rack, and the second gear and the second rack, combined with the fixing effect of the tightening screw, ensuring the stability of light gathering. Each component adopts modular assembly. The slide clamp can fix the observed sample. The coordinated cooperation of the rotating plate, the conical light-shielding plate and the fixing rod makes the light-shielding adjustment operation convenient. The overall structure is compact and easy to disassemble and assemble, making it easy to maintain and carry. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the rotating frame of this utility model; Figure 5 This is a schematic diagram of the structure of the bottom of the platform of this utility model; Figure 6 This is a schematic diagram of the internal structure of the focusing frame of this utility model.

[0015] In the diagram: 1. Lens base; 2. Lens pillar; 3. Lens arm; 4. Eyepiece; 5. Revolving nosepiece; 6. Objective lens; 7. Stage; 8. Rotating frame; 9. Tightening screw; 10. Stage adjustment knob; 11. Eyepiece adjustment knob; 12. Reflector; 13. Fill light unit; 14. Pressing clip; 15. Light transmission hole; 16. Condenser; 17. Condenser frame; 18. First gear; 19. Second gear; 20. First rack; 21. Second rack; 22. Battery compartment; 23. Fill light; 24. Sliding stage; 25. Rotating plate; 26. Polygonal groove; 27. Conical light shield; 28. Fixing rod; 29. ​​First cylindrical rod; 30. Second cylindrical rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1 to 6 An optical light-gathering device for an optical microscope includes a base 1, an eyepiece 4, a converter 5, and an objective lens 6. A mirror post 2 is fixedly connected to the top of the base 1, and a mirror arm 3 is rotatably connected to the top of the mirror post 2. The eyepiece 4 is slidably connected to the outside of the mirror arm 3. The converter 5 is rotatably connected to the bottom of the eyepiece 4, and the objective lens 6 is fixedly connected to the bottom of the converter 5. A vertically sliding stage 7 is provided on the outside of the mirror arm 3. A light-transmitting hole 15 is opened at the center of the stage 7, and a condenser 16 is installed inside the light-transmitting hole 15. A rotating plate 25 is rotatably connected to the bottom of the stage 7. The rotating plate 25 is slidably connected to a plurality of conical light-blocking plates 27 that can block the light-transmitting hole 15. The external rotatable mirror 12 is rotatably connected to the mirror arm 3, and the mirror 12 is positioned corresponding to the light-transmitting hole 15. The observation angle is adjusted by rotating the mirror arm 3, the eyepiece 4 is slidable and coordinated with the converter 5 to switch the objective lens 6 to calibrate the observation focal length, the light is focused by using the condenser 16, the rotating plate 25 is rotated to move the conical light-blocking plates 27 to adjust the amount of light entering the light-transmitting hole 15, and the mirror 12 is flipped to accurately reflect the light to the light-transmitting hole 15, thus achieving basic light collection and observation adaptation.

[0018] Please see Figures 1 to 2The external thread of the mirror column 2 is connected to a tightening screw 9. The end of the tightening screw extends into the interior of the mirror column and abuts against the mirror arm 3. By rotating the tightening screw 9, the angle of the mirror arm 3 can be fixed and adjusted by utilizing its threaded connection with the mirror column 2 and abutting against the mirror arm 3, thus ensuring the stability of the mirror arm 3 during observation.

[0019] Please see Figures 1 to 5 The external side of the mirror arm 3 is symmetrically connected to a stage adjustment knob 10. The stage adjustment knob 10 extends into the interior of the mirror arm 3 and is fixedly connected to a first gear 18. The bottom of the stage 7 is slidably connected to a sliding platform 24, which is slidably connected to the mirror arm 3. The external side of the sliding platform 24 is fixedly connected to a first rack 20, which meshes with the first gear 18. By rotating the stage adjustment knob 10, the first gear 18 is driven to rotate. The meshing transmission between the first gear 18 and the first rack 20 drives the sliding platform 24 to drive the stage 7 to slide vertically along the mirror arm 3, thereby achieving precise adjustment of the position of the stage 7.

[0020] Please see Figures 1 to 6 The top of the stage 7 is symmetrically fixed with a plate clamp 14, and the bottom of the stage 7 is fixedly fixed with a focusing frame 17. The rotating plate 25 has a polygonal groove 26 on its outside. The conical light-shielding plate 27 is slidably connected to the polygonal groove 26. The plate clamp 14 can fix the observation sample on the stage 7 to prevent displacement. The focusing frame 17 provides mounting support for the rotating plate 25 and the conical light-shielding plate 27. The sliding cooperation between the polygonal groove 26 of the rotating plate 25 and the conical light-shielding plate 27 provides a structural basis for light-shielding adjustment.

[0021] Please see Figures 1 to 6 A fixed rod 28 is fixedly connected to the outside of the focusing frame 17, and a second cylindrical rod 30 is fixedly connected to the outside of the conical light-shielding plate 27. The second cylindrical rod 30 is slidably connected to the fixed rod 28. A first cylindrical rod 29 is fixedly connected to the outside of the rotating plate 25. The first cylindrical rod 29 extends out of the focusing frame 17 and is slidably connected to it. By moving the first cylindrical rod 29, the rotating plate 25 is driven to rotate. Combined with the sliding limit of the second cylindrical rod 30 and the fixed rod 28, the conical light-shielding plate 27 moves stably radially along the polygonal groove 26, and the blocking area of ​​the light-transmitting hole 15 is precisely adjusted.

[0022] Please see Figures 1 to 3 An eyepiece adjustment knob 11 is symmetrically rotatably connected to the outside of the telescope arm 3. The eyepiece adjustment knob 11 extends into the inside of the telescope arm 3 and is fixedly connected to a second gear 19. A second rack 21 is fixedly connected to the outside of the eyepiece 4. The second rack 21 meshes with the second gear 19. By rotating the eyepiece adjustment knob 11, the second gear 19 is driven to rotate. The meshing transmission between the second gear 19 and the second rack 21 enables the eyepiece 4 to slide along the telescope arm 3, thereby accurately calibrating the observation focal length.

[0023] Please see Figures 1 to 4 The mirror arm 3 is rotatably connected to a rotating frame 8. The reflector 12 is rotatably connected to the outside of the rotating frame 8. The bottom of the reflector 12 is threadedly connected to a filler 13. By rotating the rotating frame 8, the angle of the reflector 12 can be adjusted so that it can accurately reflect light. The filler 13 is fixed to the bottom of the reflector 12 by a threaded connection, providing an auxiliary light source installation base for low-light environments.

[0024] Please see Figures 1 to 4 A supplementary light 23 is provided at the center of the supplementary light unit 13. A battery slot 22 is symmetrically provided on the outside of the supplementary light unit 13, and a battery is installed in the battery slot 22. The supplementary light 23 is powered by the battery installed in the battery slot 22. The supplementary light 23 can emit auxiliary light, which is reflected by the reflector 12 to enhance the amount of light entering the light-transmitting hole 15, and is suitable for low-light observation scenarios.

[0025] In summary, the optical light-gathering device of this optical microscope is used as follows: First, insert the battery into the battery slot 22 of the supplementary light unit 13 and fix it to the bottom of the mirror 12. Fix the sample by the slide clamp 14 of the stage 7. Rotate the arm 3 to the appropriate angle and lock it with the tightening screw 9. Then, rotate the stage adjustment knob 10 and the eyepiece adjustment knob 11 respectively. Adjust the position of the stage 7 and the eyepiece 4 by means of the meshing transmission of the gear and rack to calibrate the focal length. Then, rotate the rotating frame 8 to adjust the angle of the mirror 12 so that the natural light is focused by the condenser 16 in the light-transmitting hole 15. By turning the first cylindrical rod 29, the rotating plate 25 is rotated, which drives the conical light-blocking plate 27 to move radially to adjust the blocking area of ​​the light-transmitting hole 15. When the natural light source is insufficient, the supplementary light lamp 23 can be turned on to supplement the light. Finally, switch the objective lens 6 through the converter 5 for observation. After the observation is completed, take out the sample, reset the parts, and clean and store them.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical light-gathering device for an optical microscope, comprising a base (1), an eyepiece (4), a converter (5), and an objective lens (6), characterized in that: The top of the lens mount (1) is fixedly connected to a lens post (2), the top of the lens post (2) is rotatably connected to a lens arm (3), the eyepiece (4) is slidably connected to the outside of the lens arm (3), the converter (5) is rotatably connected to the bottom of the eyepiece (4), the objective lens (6) is fixedly connected to the bottom of the converter (5), the outside of the lens arm (3) is provided with a vertically sliding stage (7), the center of the stage (7) is provided with a light-transmitting hole (15), a condenser (16) is installed inside the light-transmitting hole (15), the bottom of the stage (7) is rotatably connected to a rotating plate (25), the outside of the rotating plate (25) is slidably connected to a plurality of conical light-blocking plates (27) that can block the light-transmitting hole (15), the outside of the lens arm (3) is rotatably connected to a flip-up mirror (12), and the mirror (12) corresponds to the position of the light-transmitting hole (15).

2. The optical light-collecting device for an optical microscope according to claim 1, characterized in that: The external thread of the mirror post (2) is connected to a tightening screw (9), the end of which extends into the interior of the mirror post (2) and abuts against the mirror arm (3).

3. The optical light-collecting device for an optical microscope according to claim 2, characterized in that: The external side of the telescope arm (3) is symmetrically rotatably connected to a stage adjustment knob (10). The stage adjustment knob (10) extends into the inside of the telescope arm (3) and is fixedly connected to a first gear (18). The bottom of the stage (7) is slidably connected to a sliding platform (24). The sliding platform (24) is slidably connected to the telescope arm (3). The external side of the sliding platform (24) is fixedly connected to a first rack (20). The first rack (20) meshes with the first gear (18).

4. The optical light-collecting device for an optical microscope according to claim 3, characterized in that: The top of the stage (7) is symmetrically fixedly connected with a pressure plate clamp (14), the bottom of the stage (7) is fixedly connected with a light-collecting frame (17), the outside of the rotating plate (25) has a polygonal groove (26), and the conical light-shielding plate (27) is slidably connected to the polygonal groove (26).

5. The optical light-collecting device for an optical microscope according to claim 4, characterized in that: The focusing frame (17) is fixedly connected to a fixing rod (28), the conical light-shielding plate (27) is fixedly connected to a second cylindrical rod (30), the second cylindrical rod (30) is slidably connected to the fixing rod (28), and the rotating plate (25) is fixedly connected to a first cylindrical rod (29), the first cylindrical rod (29) extends out of the focusing frame (17) and is slidably connected to it.

6. The optical light-collecting device for an optical microscope according to claim 5, characterized in that: The eyepiece adjustment knob (11) is symmetrically rotated on the outside of the lens arm (3). The eyepiece adjustment knob (11) extends into the inside of the lens arm (3) and is fixedly connected to the second gear (19). The second rack (21) is fixedly connected to the outside of the eyepiece (4). The second rack (21) meshes with the second gear (19).

7. The optical light-collecting device for an optical microscope according to claim 6, characterized in that: The mirror arm (3) is rotatably connected to a rotating frame (8), the reflector (12) is rotatably connected to the outside of the rotating frame (8), and the bottom of the reflector (12) is threadedly connected to a filler (13).

8. The optical light-collecting device for an optical microscope according to claim 7, characterized in that: A fill light (23) is provided at the center of the fill light (13), and a battery slot (22) is symmetrically provided on the outside of the fill light (13), and a battery is installed in the battery slot (22).

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