Light source assembly for microscope

Abstract

The utility model innovatively provides a light source assembly for a microscope, which comprises a first connecting piece and a light source piece, the first connecting piece is connected to an objective lens cover of the microscope through threads, and the light source piece is connected with the first connecting piece through magnetic attraction or buckling, so that the center of the light source piece coincides with the central axis of the microscope. Compared with a traditional screw tightening mode, the light source is convenient to replace, the center of the light source used for installation can be naturally overlapped with the central axis of the microscope, and the light uniformizing effect of the light source used for experiments is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of lamps, and more specifically to a light source assembly for a microscope. Background Technology

[0002] Microscope illumination methods are mainly divided into two types: transmission illumination and incident illumination. Transmission illumination is when light passes through the condenser on the microscope and then shines onto the object sample specimen, while incident illumination is when the illumination light passes through the objective lens of the microscope and then shines onto the surface of the sample specimen to form an image.

[0003] Currently, the most widely used method is to fix the light source to the microscope objective lens by tightening it with three screws. If the screws are tightened to different depths, it will affect the coaxiality, that is, the uniformity of the light source illumination will be insufficient, which will affect the microscope observation. In addition, the coaxiality between the light source and the objective lens can still be easily affected after the light source is disassembled and replaced. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a light source assembly for microscopes to overcome the above-mentioned defects in the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A microscope light source assembly includes a first connector and a light source component. The first connector is threaded onto the objective lens cover of the microscope, and the light source component is connected to the first connector by magnetic attraction or fastening, such that the center of the light source component coincides with the central axis of the microscope.

[0007] Furthermore, it also includes a magnetic suction component, which is located between the first connector and the light source component.

[0008] Furthermore, the magnetic attraction assembly comprises three groups, with an included angle of 120° between each group of magnetic attraction assemblies.

[0009] Furthermore, the magnetic attraction assembly includes a first magnet and a first attraction element, and there is a gap between the first attraction elements in each pair of adjacent magnetic attraction assemblies.

[0010] Furthermore, the first suction element is arranged in a ring along the central axis of the microscope.

[0011] Furthermore, the first magnet is embedded in the light source component so that the surface of the first magnet is flush with the surface of the light source component, and the first suction member is embedded in the first connector so that the surface of the first suction member is flush with the surface of the first connector.

[0012] Furthermore, the light source has a visual aperture at its center that aligns with the objective lens, and a boss is provided on the visual aperture for mounting a filter or a transparent glass plate.

[0013] Furthermore, the edge of the boss is provided with a notch for disengaging the filter or transparent glass sheet from the boss.

[0014] Furthermore, a protective cover is provided on the side of the light source component facing away from the first connector, and the protective cover is connected to the light source component by magnetic attraction.

[0015] Furthermore, it also includes a suction component, wherein the suction force of the suction component is less than that of the magnetic suction component.

[0016] The beneficial effects of this utility model are as follows: the first connector and the light source are connected by magnetic attraction, which is more convenient for replacing the light source compared to the traditional screw tightening method. Moreover, the center of the light source used for installation can be naturally aligned with the central axis of the microscope, ensuring the uniform light effect of the light source used in the experiment. Attached Figure Description

[0017] Figure 1 This is an exploded view of the microscope light source assembly in this utility model;

[0018] Figure 2 This is a structural diagram of the first connecting member in this utility model;

[0019] Figure 3 This is a connection diagram of the light source component and the protective cover in this utility model.

[0020] Reference numerals: 1. First connector; 2. Light source; 3. First magnet; 4. First suction member; 5. Spacing between partitions; 6. Vision hole; 7. Boss; 8. Notch; 9. Transparent cover plate; 10. Serrated groove group; 11. Second suction member. Detailed Implementation

[0021] 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.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0025] Currently, the most common method is to fix the light source to the microscope objective lens using three screws. However, if the screws are screwed in to different depths, it will affect coaxiality, resulting in insufficient uniformity of light illumination and impacting microscope observation. Furthermore, disassembling or replacing the light source can easily affect the coaxiality between the light source and the objective lens. Therefore, this invention designs a light source assembly for microscopes, such as... Figure 1 As shown, it includes a first connector 1 and a light source 2. The first connector 1 is threaded onto the objective lens cover of the microscope. The light source 2 is connected to the first connector 1 by magnetic attraction or fastening, so that the center of the light source 2 coincides with the central axis of the microscope. Compared with the traditional screw tightening method, it is convenient to replace the light source, and the center of the light source used for installation can naturally coincide with the central axis of the microscope, ensuring the uniform light effect of the light source for the experiment.

[0026] Example 1:

[0027] The connection between the light source 2 and the first connector 1 is magnetic, i.e. Figure 1 As shown, the light source assembly also includes a magnetic attraction component, which is located between the first connector 1 and the light source component 2. The magnetic attraction component in this invention comprises three groups, with an included angle of 120° between each group. Of course, the magnetic attraction component can be any other group. Each group of magnetic attraction components includes a first magnet 3 and a first attraction member 4, such as... Figure 2As shown, there is a gap 5 between the first attracting member 4 in each pair of adjacent magnetic attraction components. The first magnet 3 can be set on the first connecting member 1 or on the light source member 2. The first attracting member 4 is set on the light source member 2 or the first connecting member 1 without a magnet. In this utility model, the first magnet 3 is set on the light source member 2 and the first attracting member 4 is set on the first connecting member 1. The first magnet 3 includes ordinary magnets and electromagnets, and the first attracting member 4 is an arc-shaped armature and is arranged in a ring along the central axis of the microscope.

[0028] When the first magnet 3 is an ordinary magnet, the attraction force between the magnet and the armature is relatively large. Therefore, when installing the light source component 2, each magnet is aligned with the corresponding armature to ensure that each magnet can be attracted to different armatures. When it is necessary to disassemble and replace the light source component 2, rotate the light source component 2 and rotate the magnet horizontally to the gap 5 between the two armatures. Then each magnet will be rotated to the gap 5. After the magnet is separated from the armature, it loses the attraction force, which makes it easy to remove the light source component 2.

[0029] When the first magnet 3 is an electromagnet, the electromagnet in this invention has the characteristics of being magnetic when not energized and non-magnetic when energized. Its connection method with the armature is the same. Only when it is disconnected from the light source 2 does it need to be energized, without needing to rotate the light source 2.

[0030] In order to ensure the tight connection between the light source 2 and the first connector 1 and to prevent external dust from entering through the gap between the light source 2 and the first connector 1, the first magnet 3 in this utility model is embedded in the light source 2 so that the surface of the first magnet 3 is flush with the surface of the light source 2, and the first suction member 4 is embedded in the first connector 1 so that the surface of the first suction member 4 is flush with the surface of the first connector 1.

[0031] The light source in this utility model is not limited to a ring light, but can also be an external coaxial light source, a diffuse reflection light source (dome, bowl-shaped light source), etc. However, this utility model prefers a ring light source, that is, the center of the light source component 2 is provided with a vision hole 6 for docking with the objective lens. The vision hole 6 is provided with a boss 7, which is used to install a filter or a transparent glass plate. The boss 7 may also be without any lens installed. In addition, there is a notch 8 on the edge of the boss 7 for moving the filter or transparent glass plate away from the boss 7. The lens can be removed from the boss 7 by manually pressing the edge on the notches 8 on both sides.

[0032] The outer ring of the first connector 1 is provided with several serrated groove groups 10, which facilitates manual gripping of the first connector 1 and rotation on the objective lens cover.

[0033] Example 2:

[0034] The connection between the light source 2 and the first connector 1 is a snap-fit ​​connection. Based on embodiment 1, the magnetic suction component is replaced with a snap-fit ​​component. The snap-fit ​​component can adopt existing snap-fit ​​and snap-fit ​​method or clothing snap-fit ​​method.

[0035] Example 3:

[0036] Based on Embodiment 1 or Embodiment 2, a protective cover 9 is provided on the side of the light source component 2 facing away from the first connecting component 1, such as... Figure 3 As shown, the protective cover 9 is connected to the light source 2 via magnetic attraction, which also includes a suction assembly. The suction force of the suction assembly is less than that of the magnetic assembly. When replacing the lower protective cover 9, the upper light source 2 will not easily detach from the first connecting member 1 when the protective cover 9 is twisted because the attraction between the first connecting member 1 and the light source 2 is greater. Specifically, the suction assembly includes a second magnet and a second suction member 11. In this invention, the second magnet is located at the bottom of the light source 2, and the second suction member 11 is located in the edge groove of the protective cover 9. There are 6 second magnets, which means there are also 6 second suction members 11. The shape of the second suction member 11 is the same as that of the first suction member 4, which is an arc-shaped armature. There is a gap between each two adjacent second suction members 11. The connection method between the protective cover 9 and the light source 2 is the same as the connection method between the light source 2 and the first connecting member 1. In addition, the protective cover 9 can be fitted with a rear protective glass, or it can be fitted with a color filter, polarizer, beam shaping film, etc.

[0037] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A light source assembly for a microscope, characterized in that: It includes a first connector (1) and a light source (2). The first connector (1) is threaded onto the objective lens cover of the microscope. The light source (2) is connected to the first connector (1) by magnetic attraction or fastening, so that the center of the light source (2) coincides with the central axis of the microscope.

2. The microscope light source assembly according to claim 1, characterized in that: It also includes a magnetic suction component, which is located between the first connector (1) and the light source (2).

3. The microscope light source assembly according to claim 2, characterized in that: The magnetic attraction assembly comprises three groups, with an included angle of 120° between each group of magnetic attraction assemblies.

4. The microscope light source assembly according to claim 3, characterized in that: The magnetic attraction assembly includes a first magnet (3) and a first attraction member (4), and there is a gap (5) between the first attraction members (4) in each two adjacent sets of magnetic attraction assemblies.

5. A microscope light source assembly according to claim 4, characterized in that: The first suction element (4) is arranged in a ring along the central axis of the microscope.

6. The microscope light source assembly according to claim 5, characterized in that: The first magnet (3) is embedded in the light source (2) so that the surface of the first magnet (3) is flush with the surface of the light source (2), and the first suction member (4) is embedded in the first connector (1) so that the surface of the first suction member (4) is flush with the surface of the first connector (1).

7. A microscope light source assembly according to claim 2 or 6, characterized in that: The light source (2) has a visual aperture (6) at its center that aligns with the objective lens. The visual aperture (6) has a boss (7) on it, which is used to mount a filter or a transparent glass plate.

8. A microscope light source assembly according to claim 7, characterized in that: The edge of the boss (7) is provided with a notch (8) for moving the filter or transparent glass sheet away from the boss (7).

9. A microscope light source assembly according to claim 7, characterized in that: The light source component (2) has a protective cover (9) on the side facing away from the first connector (1), and the protective cover (9) is connected to the light source component (2) by magnetic attraction.

10. A microscope light source assembly according to claim 9, characterized in that: It also includes a suction component, wherein the suction force of the suction component is less than that of the magnetic suction component.

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