Dimming equipment for fluorescence microscope

Abstract

The utility model discloses dimming equipment for a fluorescence microscope, relates to the field of microscopes, and aims to solve the problems that the conventional fluorescence microscope has limitation in use by reflecting a natural light source for illumination, and the operation complexity of the fluorescence microscope is increased as the natural light source needs to screen specific wavelengths in use. The lens base is rotatably connected with a lens arm, the lens arm is slidably connected with a lens barrel, an objective table is arranged below the lens barrel, the objective table is fixedly connected with the lens arm, the lens arm is provided with a dimming assembly, the dimming assembly is located below the objective table, and the objective table is provided with a light hole matched with the dimming assembly. The fluorescent lamp has the advantages that an additional specific light source is provided through the lamp holder, the screening difficulty of the specific light source is simplified through the light source with the specific wavelength, and the definition and the contrast ratio of a fluorescent signal are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to microscope technical field especially is related to a light adjusting equipment for fluorescence microscope. BACKGROUND

[0002] As an important scientific tool, fluorescence microscope has a wide range of applications in biology, medicine and material science. Its principle is mainly based on fluorescence phenomenon, that is, some substances can absorb light energy and emit light with longer wavelength than incident light (fluorescence) under the irradiation of light with specific wavelength. However, there are some limitations in the use of traditional fluorescence microscope, especially in the selection and adjustment of light source wavelength.

[0003] Traditional fluorescence microscope usually relies on reflected natural light source for illumination. These light sources have a wide range of wavelengths, but often lack the best excitation wavelength for specific fluorescent dyes. Therefore, when observing fluorescent samples, additional filters are needed to filter out unwanted wavelengths to ensure the clarity and contrast of fluorescent signals. In addition, in order to obtain ideal fluorescent signals, fluorescence microscope needs to use multiple filters to screen light of different wavelengths. The selection and combination of these filters not only increase the complexity of operation, but also may cause loss or distortion of fluorescent signals due to the performance limitations of filters themselves, thereby affecting the clarity and contrast of fluorescent signals. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a light adjusting equipment for fluorescence microscope, which effectively solves the problems of the existing fluorescence microscope using reflected natural light source for illumination, having limitations in use, and the natural light source needing to be screened for specific wavelengths in use, increasing the complexity of fluorescence microscope operation.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: the utility model discloses a mirror seat, the mirror seat is rotationally connected with mirror arm, the mirror arm is slidably connected with the lens barrel, the lens barrel below is equipped with the object table, the object table with mirror arm fixed connection, the mirror arm is equipped with light adjusting assembly, light adjusting assembly is located the lower of object table, the object table is equipped with the light transmission hole that cooperates with light adjusting assembly, the object table is equipped with the filter strip that cooperates with the light transmission hole in.

[0006] The light adjusting assembly comprises a lamp holder, the lamp holder is rotationally connected with a light shield, the light shield is provided with a first through hole, the light shield upper end is provided with a light transmission plate, the light transmission plate is provided with a second through hole, the light transmission plate and the lamp holder are fixedly connected with a support column, and the light transmission plate upper end is fixedly connected with a light transmission lens.

[0007] Preferably, the filter strip is provided with different light transmission areas, and the filter strip is provided with an adjuster at both ends, and the adjuster is located in the object table.

[0008] Preferably, the filter strip has two groups, and the two groups of filter strips are stacked in the object table at 90 degrees.

[0009] Preferably, the adjuster comprises a first reel and a second reel, the first reel and the second reel are rotationally connected with the object table, and the first reel and the second reel are provided with winding grooves.

[0010] Preferably, the filter strip is provided with a pressing rod at the side, the pressing rod is located below the filter strip, and the pressing rod is fixedly connected with the object table.

[0011] Preferably, the lamp holder is rotationally connected with a support at both ends, and the support is spherically connected between the mirror arm.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The utility model discloses a lamp holder in the light adjusting assembly provides specific wavelength light source for the microscope, reduces the dependence on natural light source through the specific light source, simplifies the step of filtering specific light wave to natural light source, reduces the complexity of operation, avoids the problem of fluorescent signal loss or distortion caused by light source, and improves the clarity and contrast of fluorescent signal. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first axial structure schematic diagram of the utility model.

[0015] Figure 2 It is the forward structure schematic diagram of the utility model.

[0016] Figure 3 It is the light adjusting assembly exploded structure schematic diagram of the utility model.

[0017] Figure 4 It is the object table upper end structure schematic diagram of the utility model.

[0018] Figure 5 It is the object table lower end structure schematic diagram of the utility model.

[0019] Figure 6 It is the filter strip connecting structure schematic diagram of the utility model.

[0020] The labels in the figure: 1, mirror seat; 2, mirror arm; 3, lens barrel; 4, object table; 5, light transmission hole; 6, light filter strip; 7, lamp holder; 8, light shield; 9, first through hole; 10, light transmission plate; 11, second through hole; 12, support column; 13, light transmission lens; 14, light transmission area; 15, first reel; 16, second reel; 17, winding groove; 18, pressing rod; 19, bracket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] Please refer to the drawings Figures 1-6 The light adjusting device for a fluorescence microscope in the embodiment includes a mirror seat 1, a mirror arm 2 rotatably connected to the mirror seat 1, a lens barrel 3 slidably connected to the mirror arm 2, an object table 4 arranged below the lens barrel 3, the object table 4 fixedly connected to the mirror arm 2, a light adjusting assembly arranged on the mirror arm 2, the light adjusting assembly located below the object table 4, a light transmission hole 5 arranged on the object table 4 and matched with the light adjusting assembly, a light filter strip 6 arranged in the object table 4 and matched with the light transmission hole 5, a lamp holder 7 included in the light adjusting assembly, a light shield 8 rotatably connected to the lamp holder 7, a first through hole 9 arranged on the light shield 8, a light transmission plate 10 arranged on the upper end of the light shield 8, a second through hole 11 arranged on the light transmission plate 10, a support column 12 fixedly connected between the light transmission plate 10 and the lamp holder 7, and a light transmission lens 13 fixedly connected to the upper end of the light transmission plate 10.

[0023] The mirror base 1 is located at the bottom, and the mirror base 1 is a supporting component of the entire device. The ground is a horizontal plane, and when placed, it can provide stable support for the components above. The mirror base 1 is connected to the mirror arm 2 through the mirror column. The mirror arm 2 is connected to the mirror base 1 through the mirror column. The mirror column and the mirror base 1 are in interference fit, and there is a large friction between them. The mirror arm 2 can rotate to any angle relative to the mirror base 1, increasing the flexibility of the mirror arm 2. The lens barrel 3 is located above the mirror arm 2 and can be vertically lifted on the mirror arm 2. The structure and function of the lens barrel 3 and the mirror arm 2 are the same as those of the existing microscope, which belongs to the prior art. The internal components will not be described in detail here. The stage 4 and the light adjusting assembly are sequentially arranged below the lens barrel 3. The stage 4 is used to place the glass slide, and the light adjusting assembly is used to provide the light source. The light source on the light adjusting assembly is upward, and the upward light beam of the light adjusting assembly acts on the glass slide through the light transmission hole 5. The specific light source is reflected in the lens barrel 3 through the light transmission hole 5 and the glass slide. A specific light bar is installed in the lamp holder 7 in the light adjusting assembly. From the mirror base 1, the light shield plate 8, the light transmission plate 10, and the light transmission lens 13 are sequentially installed. The first through hole 9 and the second through hole 11 are respectively opened on the light transmission plate 10 and the light shield plate 8. The first through hole 9 and the second through hole 11 are both multiple and equally angularly distributed. The light transmission plate 10 is fixedly connected to the lamp holder 7 through the support column 12. The light transmission plate 10 and the second through hole 11 above it are in a fixed state. The light shield plate 8 has a cylindrical hole, and the support column 12 passes through the cylindrical hole of the light shield plate 8. The light shield plate 8 can rotate between the light transmission plate 10 and the lamp holder 7. The rotation of the light shield plate 8 will drive the first through hole 9 on the light shield plate 8 to rotate. After the rotation of the light shield plate 8 and the first through hole 9, the light shield plate 8 will partially block the second through hole 11 on the light transmission plate 10. In this way, the amount of light that passes through the second through hole 11 to the light transmission lens 13 can be flexibly adjusted, thereby achieving the purpose of adjusting the brightness of the light. The light filter strip 6 is located in the light transmission hole 5, and the light acting on the glass slide must first pass through the light filter strip 6. The action of the light filter strip 6 ensures that the specific wavelength light source acts on the glass slide.

[0024] The light filter strip 6 has different light transmission areas 14. Each light transmission area 14 allows different wavelengths of light to pass through. In this way, during fluorescence observation, it can be ensured that specific light sources act on the glass slide. The light filter strip 6 is a long strip of plastic material. The two ends of the light filter strip 6 are sleeved on the adjuster. The width of the light filter strip 6 is greater than the diameter of the light transmission hole 5. The adjuster is used to adjust the position of the upper light transmission area 14 of the light filter strip 6. When filtering the light source, the specific wavelength of light that passes through the light transmission hole 5 is more suitable for fluorescence display mirror viewing.

[0025] Further, the light filtering strips 6 are arranged in two groups, the two groups of light filtering strips 6 are stacked up and down, and the two light filtering strips 6 are distributed at 90 degrees, both ends of the two groups of light filtering strips 6 are provided with adjusters, the horizontal heights of the two groups of adjusters are different, each group of adjusters is composed of a first reel and a second reel, the first reel and the second reel are rotatably installed in the object table 4, both ends of the light filtering strip 6 are respectively installed in the winding grooves 17 of the first reel and the second reel, the light filtering strip 6 is wound back and forth on the first reel and the second reel by rotating the second reel and the second reel, and the winding principle is similar to that of a magnetic tape; further, in order to guarantee the light transmission effect of the two groups of light filtering strips 6 and guarantee the flatness of the light filtering strip 6 below the light transmission hole 5, pressing rods 18 are additionally arranged on both sides of the light filtering strip 6, the gap thickness between the pressing rod 18 and the upper end of the object table 4 is the same as the thickness of the light filtering strip 6, so that the two pressing rods 18 and the light filtering strip 6 play a compacting role, and the flatness of the light filtering strip 6 is guaranteed.

[0026] The support 19 is hingedly connected to the front end of the mirror arm 2, the hingedly connected support 19 and the mirror arm 2 can make the support 19 have greater freedom, and the adjustment of the angle of the support 19 is more convenient in use, the support 19 and the lamp holder 7 are rotatably connected through a connecting pin, the lamp holder 7 can rotate under the action of the connecting pin, and the rotation of the lamp holder 7 can adjust the angle of the light transmission mirror 13.

[0027] Finally, it should be noted that: the above only describes preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A light adjusting device for fluorescence microscopy, characterized by: The utility model relates to a microscope, including mirror seat (1), mirror arm (2) are rotatably connected on the mirror seat (1), mirror barrel (3) are slidably connected on mirror arm (2), the object table (4) is equipped below mirror barrel (3), the object table (4) is fixedly connected with mirror arm (2), be equipped with light adjusting assembly on mirror arm (2), light adjusting assembly is located below object table (4), be equipped with the light transmission hole (5) with light adjusting assembly cooperation on the object table (4), be equipped with filter strip (6) with light transmission hole (5) cooperation in the object table (4), The light adjusting assembly includes lamp holder (7), the light shield (8) is rotatably connected on the lamp holder (7), the first through -hole (9) is equipped on the light shield (8), the light transmission plate (10) is equipped on the light shield (8) upper end, the second through -hole (11) is equipped on the light transmission plate (10), the support column (12) is fixedly connected between the light transmission plate (10) with the lamp holder (7), the light transmission mirror (13) is fixedly connected on the light transmission plate (10) upper end.

2. The light adjusting apparatus for a fluorescence microscope according to claim 1, characterized by: Different light transmission areas (14) are equipped on the filter strip (6), the adjuster is equipped at the both ends of filter strip (6), and the adjuster is located in the object table (4).

3. The light adjusting apparatus for a fluorescence microscope according to claim 2, characterized by: The filter strip (6) has two groups, and the two groups of filter strip (6) are overlapped in the object table (4) by 90 degrees.

4. A light modulating device for a fluorescence microscope according to claim 2 or 3, characterized in that: The adjuster includes first spool (15) and second spool (16), the first spool (15) and the second spool (16) are rotatably connected with the object table (4), and winding grooves (17) are arranged on the first spool and the second spool.

5. The light modulating device for a fluorescence microscope according to claim 4, characterized in that: The filter strip (6) side is equipped with the pressure bar (18), the pressure bar (18) is located below filter strip (6), and the pressure bar (18) is fixedly connected with the object table (4).

6. The light adjusting apparatus for a fluorescence microscope according to claim 1, characterized by: The lamp holder (7) both ends rotatably connected with support (19), the support (19) with mirror arm (2) between spherical hinge.

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