Microscope fluorescence optical filter switching device

Abstract

The utility model discloses a microscope fluorescent light filter switching device, which relates to the technical field of biological experiment instruments and comprises a lens switching mechanism, a lens butt joint mechanism and a fluorescent light source assembly. A plurality of fluorescent light filters on the microscope body are arranged on the lens switching mechanism, and the lens switching mechanism is arranged between an eyepiece and an objective lens on the microscope body through the lens butt joint mechanism and the fluorescent light source assembly. The fluorescent light filter switching device is simple in structure and convenient to use, can rapidly switch a plurality of fluorescent light filters, effectively improves the efficiency and precision of fluorescent microscopic observation, reduces the risk of damage of the light filters, and is suitable for various fluorescent microscopic experiments.

Description

Technical Field

[0001] The utility model relates to the technical field of biological experimental instruments, in particular to a microscope fluorescence filter switching device. Background Art

[0002] Fluorescence filters are a key component in fluorescence microscopy. Different fluorescent dyes require filters of varying wavelengths to achieve precise spectral filtering and fluorescence observation. During experiments, different fluorescence filters may need to be switched to meet varying needs. However, switching between filters requires removing and replacing each filter individually, a cumbersome and inconvenient process that can easily damage the filters and hinders rapid switching between multiple dyes. Utility Model Content

[0003] The purpose of the utility model is to provide a microscope fluorescence filter switching device that can better meet the demand for rapid switching of multiple dyes.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented according to the following technical solutions:

[0005] A fluorescence filter switching device for a microscope comprises a lens switching mechanism, a lens docking mechanism, and a fluorescence light source assembly; a plurality of fluorescence filters on a microscope body are arranged on the lens switching mechanism, and the lens switching mechanism is arranged between an eyepiece and an objective lens on the microscope body via the lens docking mechanism and the fluorescence light source assembly;

[0006] The lens switching mechanism includes a turntable mounting shaft, a filter mounting turntable, and a filter placement platform. The middle part of the filter mounting turntable is rotatably connected to the microscope body through the turntable mounting shaft. A plurality of through holes for placing fluorescent filters are evenly distributed on the filter mounting turntable. The filter placement platform is arranged on the inner edge of the through holes of the filter mounting turntable. The lens docking mechanism is located below the fluorescent filter.

[0007] Specifically, the fluorescent light source assembly includes a fluorescent light source, a refractor and a refractor connecting ring. The fluorescent light source is arranged above the first refraction surface of the refractor, the second refraction surface of the refractor faces the eyepiece of the microscope body, the refractor is connected to the microscope body, the third refraction surface of the refractor is connected to one end of the refractor connecting ring, and the other end of the refractor connecting ring is connected to the lens docking mechanism.

[0008] Specifically, the lens docking mechanism includes a filter lifting cylinder, an objective lens connecting cylinder, a lifting spring, and a lifting cylinder toggle rod. The lower end of the objective lens connecting cylinder is connected to the objective lens of the microscope body, and the upper end of the objective lens connecting cylinder is telescopically connected to the lower end of the filter lifting cylinder. The lifting spring is arranged between the upper end edges of the objective lens connecting cylinder and the filter lifting cylinder. One side of the upper end edge of the filter lifting cylinder is connected to one end of the lifting cylinder toggle rod, and the other end of the lifting cylinder toggle rod is located outside the shell of the microscope body. The upper end of the filter lifting cylinder is located below the refracting mirror connecting ring.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The utility model can quickly and conveniently switch multiple filters with a simple operation process. By rotating the filter installation turntable and cooperating with the operation of the lifting tube toggle lever, the fluorescent filter can be accurately docked and switched, avoiding errors during manual operation and better meeting the needs of fast switching of multiple dyes.

[0011] Furthermore, the structural design of the present invention can effectively protect the fluorescent filter, reduce the risk of damage, extend the service life of the fluorescent filter, and improve the efficiency and accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the use state of an embodiment of the utility model;

[0013] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0014] Figure 3 It is a schematic diagram of the external structure of the utility model.

[0015] The names of the parts corresponding to the reference numerals are as follows:

[0016] Microscope body 1, eyepiece 2, objective lens 3, fluorescent light source 4, turntable mounting shaft 5, filter mounting turntable 6, filter placement table 7, fluorescent filter 8, filter lifting tube 9, objective lens connecting tube 10, lifting spring 11, lifting tube toggle lever 12, refractor 13, refractor connecting ring 14. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Example

[0019] This embodiment discloses a fluorescence filter switching device, which is applied to a microscope, such as Figure 1 、 2As shown, the microscope comprises a microscope body 1, an eyepiece 2, and an objective lens 3. Several fluorescence filters 8 are disposed between the eyepiece 2 and the objective lens 3. All of the fluorescence filters 8 are disposed on a lens switching mechanism, which is disposed between the eyepiece 2 and the objective lens 3 via a lens docking mechanism and a fluorescence light source assembly. When the microscope is in use, the fluorescence filters 8 are mounted between the eyepiece 2 and the objective lens 3 via the lens switching mechanism.

[0020] The fluorescent light source assembly includes a fluorescent light source 4, a refractor 13, and a refractor connecting ring 14. The fluorescent light source 4 is positioned above the first refractive surface of the refractor 13. The second refractive surface of the refractor 13 faces the eyepiece 2. The refractor 13 is connected to the microscope body 1. The third refractive surface of the refractor 13 is connected to one end of the refractor connecting ring 14. The other end of the refractor connecting ring 14 is connected to the lens switching mechanism and the lens docking mechanism. The fluorescent light source 4 is the light-emitting component of the device and is positioned on the first refractive surface of the refractor 13. Light emitted by the light source first strikes the refractor 13, where its multiple surfaces adjust the direction of the light. The second refractive surface is aligned with the eyepiece 2, allowing the light to be transmitted along the designed path, ensuring optimal optical results. The refractor 13 is connected to the refractor connecting ring 14 via its third refractive surface. The other end of the refractor connecting ring 14 is connected to the lens switching mechanism and the lens docking mechanism, thereby achieving precise light transmission and filtering.

[0021] The lens switching mechanism is the core component for switching multiple filters. It includes a turntable mounting shaft 5, a filter mounting turntable 6, and a filter placement platform 7. The center of the filter mounting turntable 6 is rotatably connected to the microscope body 1 via the turntable mounting shaft 5, allowing it to rotate around the mounting axis. The filter mounting turntable 6 has multiple holes evenly distributed on it for placing fluorescence filters. The filter placement platform 7 is located inside the holes of the filter mounting turntable 6. The lens docking mechanism is located below the fluorescence filters.

[0022] In this embodiment, all filters are placed in the through-holes of the filter mounting turntable 6. When the filter needs to be switched, the operator rotates the filter mounting turntable 6, causing multiple fluorescence filters 8 to be sequentially switched into the light path. At this time, fluorescent light is emitted from the fluorescence light source 4, adjusted by the refractor 13, passes through the selected fluorescence filter 8, and ultimately reaches the objective lens 3, thereby enabling fluorescence observation of the sample. Furthermore, because each filter 8 is placed on the filter placement table 7, its position in the light path can be ensured to be accurate, preventing misalignment or damage of the filter.

[0023] The lens docking mechanism includes a filter lifting tube 9, an objective lens connecting tube 10, a lifting spring 11, and a lifting tube toggle lever 12. The lower end of the objective lens connecting tube 10 is connected to the objective lens 3, and the upper end of the objective lens connecting tube 10 is telescopically connected to the lower end of the filter lifting tube 9. The lifting spring 11 is arranged between the upper end of the objective lens connecting tube 10 and the upper end edge of the filter lifting tube 9. One side of the upper end edge of the filter lifting tube 9 is connected to one end of the lifting tube toggle lever 12. The other end of the lifting tube toggle lever 12 is located outside the housing of the microscope body 1, and the upper end of the filter lifting tube 9 is located below the refractor connecting ring 14. The lens docking mechanism is responsible for lifting the selected fluorescence filter 8 to a position where it docks with the optical path. The mechanism consists of the filter lifting tube 9, the objective lens connecting tube 10, the lifting spring 11, and the lifting tube toggle lever 12. When the operator presses the lifting cylinder toggle lever 12, the filter lifting cylinder 9 is compressed and retractably connected to the upper part of the objective lens 3 via the objective lens connecting cylinder 10. At this time, the lifting spring 11 is also compressed, and when released, it pushes the filter lifting cylinder 9 upward, connecting the filter to the refractor connecting ring 14, completing the filter switching and optical path adjustment.

[0024] The overall working process of the utility model is as follows:

[0025] When the present invention is used, fluorescent filters 8 of different colors are placed in the multiple through holes of the filter installation turntable 6 and are located on the filter placement table 7. When in use, the lifting cylinder toggle rod 12 is operated to press down the filter lifting cylinder 9, and the filter installation turntable 6 is rotated by hand to make the required fluorescent filter 8 located below the refractor connecting ring 14. The lifting cylinder toggle rod 12 is released, and the filter lifting cylinder 9 is lifted up by the force of the lifting spring 11, thereby lifting the required fluorescent filter 8 and contacting the lower end of the refractor connecting ring 14, completing the docking, and the fluorescent light source 4 is lit. The refracting mirror 13 provides a fluorescent light source, which is transmitted to the objective lens 3 through the fluorescent filter 8. After being reflected by the object, it is refracted by the refracting mirror 13 to the eyepiece 2 for observation. When it is necessary to switch the fluorescent filter 8, press the lifting tube toggle rod 12, and the fluorescent filter 8 falls onto the filter placement table 7. Then, rotate the filter installation turntable 6 to bring the fluorescent filter 8 out of the housing of the microscope body 1, and move the required other fluorescent filter 8 to the bottom of the refracting mirror connecting ring 14. Then release the lifting tube toggle rod 12 to complete the switching of the fluorescent filter 8, realizing the switching of multiple fluorescent filters 8, which is convenient and fast. Figure 3 As shown, the eyepiece 2 and the fluorescent light source 4 of the present invention are installed on the housing.

[0026] According to the above embodiments, the present invention can be better implemented.

Claims

1. A microscope fluorescence filter switching device, characterized in that: The microscope comprises a lens switching mechanism, a lens docking mechanism and a fluorescent light source assembly; a plurality of fluorescent filters on the microscope body are arranged on the lens switching mechanism, and the lens switching mechanism is arranged between the eyepiece and the objective lens on the microscope body through the lens docking mechanism and the fluorescent light source assembly; The lens switching mechanism comprises a turntable mounting shaft (5), a filter mounting turntable (6), and a filter placement platform (7); the middle portion of the filter mounting turntable (6) is rotatably connected to the microscope body via the turntable mounting shaft (5); a plurality of through holes for placing fluorescent filters are evenly distributed on the filter mounting turntable (6); the filter placement platform (7) is arranged on the inner edge of the through hole of the filter mounting turntable (6); and the lens docking mechanism is located below the fluorescent filter.

2. The microscope fluorescence filter switching device according to claim 1, characterized in that: The fluorescent light source assembly comprises a fluorescent light source (4), a refractor (13) and a refractor connecting ring (14); the fluorescent light source (4) is arranged above a first refraction surface of the refractor (13); a second refraction surface of the refractor (13) faces an eyepiece of a microscope body; the refractor (13) is connected to the microscope body; a third refraction surface of the refractor (13) is connected to one end of the refractor connecting ring (14); and the other end of the refractor connecting ring (14) is connected to a lens docking mechanism.

3. The microscope fluorescence filter switching device according to claim 2, characterized in that: The lens docking mechanism comprises a filter lifting cylinder (9), an objective lens connecting cylinder (10), a lifting spring (11), and a lifting cylinder toggle rod (12); the lower end of the objective lens connecting cylinder (10) is connected to the objective lens of the microscope body; the upper end of the objective lens connecting cylinder (10) is telescopically connected to the lower end of the filter lifting cylinder (9); the lifting spring (11) is arranged between the upper end edges of the objective lens connecting cylinder (10) and the filter lifting cylinder (9); one side of the upper end edge of the filter lifting cylinder (9) is connected to one end of the lifting cylinder toggle rod (12); the other end of the lifting cylinder toggle rod (12) is located outside the housing of the microscope body; and the upper end of the filter lifting cylinder (9) is located below the refractor connecting ring (14).

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