Fluorescent device convenient to switch

Abstract

The utility model discloses a fluorescent device convenient to switch, which comprises a base, a fluorescent cavity is arranged in the base, a first light outlet and a second light outlet are respectively arranged on the upper portion and the lower portion of the base, a third light outlet is arranged on one side of the base, and a socket is further arranged on one side of the base. The fluorescent module comprises a fluorescent mirror bracket and a cover plate arranged on one side of the fluorescent mirror bracket, a plurality of optical filters are arranged on the fluorescent mirror bracket, the fluorescent mirror bracket is inserted into the fluorescent cavity of the base from the socket, and the cover plate covers and seals the socket; and the fixing mechanism is used for realizing fixed connection between the cover plate and the base. According to the fluorescent device, the fluorescent module is designed to be of a detachable inserting structure, on one hand, the requirement for rapidly switching the corresponding fluorescent module according to different fluorescent dyes is met, on the other hand, the size of the fluorescent device can be reduced, and integration of an optical system is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of optical system accessories, in particular to a fluorescent device which is easy to switch. Background Art

[0002] In some optical systems, a fluorescence module is required for imaging. Taking the optical system of a microscope as an example, when observing samples, it is necessary to treat the samples with fluorescent dyes. To obtain accurate experimental results and accurate experimental data, the basic condition is to correctly set the excitation and emission wavelengths according to the fluorescent dyes used. The excitation light and fluorescence released by fluorescent dyes are both of specific wavelengths, so various filters are needed to selectively transmit light of a certain wavelength to achieve fluorescence observation. Otherwise, there will be a phenomenon of failure to excite, or excitation but no observation or cross-color. The fluorescence excitation module is the core component used in the microscope to excite fluorescent samples and observe fluorescence. It is actually a combination of filters, generally containing 3 types of filters; for example, 1. Excitation filter, a filter that only excites the wavelength of fluorescence; 2. Dichroic mirror, which accurately and selectively transmits light of a small range of colors while reflecting the excitation light; 3. Emission film, which emits light and blocks other stray light and reflected light of the excitation light, which is the "fluorescence" we see.

[0003] For different fluorescent dyes, fluorescent modules with different filter combinations are required, so the fluorescent modules need to be switched. Currently, the existing technologies such as CN209281060U and CN207882563U arrange multiple different fluorescent modules along the circumferential direction, and rotate these fluorescent modules to switch the appropriate fluorescent module to the optical path of the microscope. However, these devices integrate multiple fluorescent modules, which are large in size and not conducive to system integration. In addition, due to structural limitations, they generally only contain 4-8 fluorescent modules with different filter combinations. When the fluorescent dye of the fluorescent sample observed under the microscope does not correspond to any of the fluorescent modules, the matching fluorescent module cannot be installed on the optical path of the microscope, and the scope of application is limited. Utility Model Content

[0004] In view of this, the present invention provides a fluorescent device that is easy to switch, which can at least solve one of the above problems to a certain extent.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A fluorescent device that is easy to switch, comprising:

[0007] A base, wherein a fluorescent chamber is provided in the base, a first light outlet and a second light outlet are provided at the upper and lower parts of the base respectively, a third light outlet is provided at one side of the base, and a socket is also provided at one side of the base;

[0008] A fluorescent module, the fluorescent module comprising a fluorescent mirror frame and a cover plate arranged on one side of the fluorescent mirror frame, the fluorescent mirror frame is provided with a plurality of filters, the fluorescent mirror frame is inserted into the fluorescent chamber of the base through the socket, and the cover plate covers the socket;

[0009] A fixing mechanism is used to achieve a fixed connection between the cover plate and the base.

[0010] As a further optional solution for the easily switchable fluorescent device, the fixing mechanism includes a plurality of magnetic blocks, and the magnetic blocks are arranged on the base and / or the cover to achieve a magnetic adsorption connection between the base and the cover.

[0011] As a further optional solution for the fluorescent device that is easy to switch, finger portions are recessed at the edge positions on both sides of the end surface of the base where the socket is located relative to the outer contour of the cover plate.

[0012] As a further optional scheme for the fluorescent device that is easy to switch, the fixing mechanism includes a first connecting hole arranged on the end face of the base where the socket is located, and a second connecting hole arranged on the cover plate; the first connecting hole corresponds to the position of the second connecting hole, the first connecting hole is a threaded hole, and the second connecting hole is a through hole; the fixing mechanism also includes a first locking screw that passes through the second connecting hole and is threadedly connected to the first connecting hole.

[0013] As a further optional scheme for the fluorescent device that is easy to switch, a first connecting block and a second connecting block are respectively arranged on the upper and lower parts of the base, the first connecting block has a first connecting hole corresponding to the first light outlet, and the second connecting block has a second connecting hole corresponding to the second light outlet; the first connecting hole and the base, as well as the second connecting hole and the base are connected by an adjustable turnover structure.

[0014] As a further optional scheme for the fluorescent device that is easy to switch, the adjustable turnover structure includes a sleeve hole and a sleeve column, the inner wall of the sleeve hole is convexly provided with a plurality of limit blocks, the outer wall of the sleeve column is recessed with an annular limit groove for the limit blocks to be snapped into, the inner wall of the sleeve hole is also provided with a locking hole opened radially, and the locking hole is threadedly connected with a second locking screw; the outer wall of the annular limit groove is squeezed by the end of the second locking screw to achieve relative fixation of the sleeve column and the sleeve hole.

[0015] The beneficial effects of the utility model are as follows: by designing the fluorescent module into a detachable plug-in structure, on the one hand, the demand for quickly switching the corresponding fluorescent module according to different fluorescent dyes is met, and on the other hand, the volume of the fluorescent device can be reduced, which is beneficial to the integration of the optical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of a fluorescent device that is easy to switch according to the utility model;

[0018] Figure 2 This is one of the exploded schematic diagrams of a fluorescent device that is easy to switch in the utility model;

[0019] Figure 3 This is the second exploded schematic diagram of a fluorescent device that is easy to switch according to the utility model;

[0020] Figure 4 is an exploded schematic diagram of the base, the first connecting block and the second connecting block;

[0021] Figure 5 It is a structural schematic diagram of the adjustable turnover structure.

[0022] In the figure: 1, base; 11, socket; 12, first light outlet; 13, second light outlet; 14, third light outlet; 15, finger portion; 16, first connection hole;

[0023] 2. Fluorescent module; 21. Fluorescent lens frame; 22. Cover plate; 221. First locking screw;

[0024] 3. Magnetic block;

[0025] 4. first connection block; 41. first connection hole;

[0026] 5. second connection block; 51. second connection hole;

[0027] 6. Adjustable rotating structure; 61. Sleeve column; 611. Annular limiting groove; 62. Sleeve hole; 621. Limiting block; 622. Locking hole; 623. Second locking screw. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] refer to Figure 1-5 , shows a fluorescent device that is easy to switch, including a base 1, a fluorescent module 2 and a fixing mechanism; a fluorescent chamber (not marked in the figure) is provided in the base 1, and a first light outlet 12 and a second light outlet 13 are respectively provided at the upper and lower parts of the base 1, a third light outlet 14 is provided at one side of the base 1, and a socket 11 is also provided at one side of the base 1; the fluorescent module 2 includes a fluorescent mirror frame 21 and a cover plate 22 arranged on one side of the fluorescent mirror frame 21, a plurality of filters are provided on the fluorescent mirror frame 21, the fluorescent mirror frame 21 is inserted into the fluorescent chamber of the base 1 from the socket 11, and the cover plate 22 covers the socket 11; conventionally, the filters on the fluorescent mirror frame 21 include an excitation plate, a dichroic mirror and an emission plate; the fixing mechanism is used to achieve a fixed connection between the cover plate 22 and the base 1.

[0032] In other words, by designing the fluorescent module 2 as a detachable plug-in structure, on the one hand, the need for quickly switching the corresponding fluorescent module 2 according to different fluorescent dyes is met, and on the other hand, the volume of the fluorescent device can be reduced, which is beneficial to the integration of the optical system. Conventionally, the first light outlet 12 and the second light outlet 13 can be used to correspond to the objective lens and the eyepiece or camera in the optical system, and the third light outlet 14 is used to correspond to the light source in the optical system, such as an LED light source, a laser light source lamp; regarding the correspondence between the fluorescent module 2 and the light path in the optical system, reference can be made to the prior art.

[0033] In some specific embodiments, in order to facilitate the rapid switching of the fluorescent module 2, refer to Figure 2 and Figure 3The fixing mechanism includes a plurality of magnetic blocks 3, which are arranged on the base 1 and / or the cover 22 to achieve magnetic adsorption connection between the base 1 and the cover 22. In this way, the fluorescent module 2 can be replaced and installed by directly plugging and unplugging it during use, which is simple and quick to operate;

[0034] In addition, preferably, the two side edges of the end surface where the socket 11 is located on the base 1 are recessed with finger parts 15 relative to the outer contour of the cover plate 22. In this way, when the fluorescent module 2 needs to be pulled out, the cover plate 22 can be pulled out with fingers by buckling the fingers into the two finger parts 15, which is convenient for operation.

[0035] In some specific embodiments, reference Figure 2 and Figure 3 , the fixing mechanism includes a first connection hole 16 provided on the end face of the base 1 where the socket 11 is located, and a second connection hole provided on the cover plate 22; the first connection hole 16 corresponds to the second connection hole in position, the first connection hole 16 is a threaded hole, and the second connection hole (not marked in the figure) is a through hole; the fixing mechanism also includes a first locking screw 221 that passes through the second connection hole and is threadedly connected to the first connection hole 16. In this embodiment, in normal use, only the magnetic block 3 can be used to fix the cover plate 22 to the base 1, and when the fluorescent device needs to be transported or is not used for a long time, the first locking screw 221 can be used to lock the cover plate 22 on the base 1 to prevent the fluorescent module 2 from being separated from the base 1.

[0036] In some specific embodiments, reference Figure 4 and Figure 5 The first connection block 4 and the second connection block 5 are respectively arranged on the upper and lower parts of the base 1. The first connection block 4 has a first connection hole 41 corresponding to the first light outlet 12, and the second connection block 5 has a second connection hole 51 corresponding to the second light outlet 13; the first connection hole 16 and the base 1, and the second connection hole and the base 1 are connected through an adjustable turnover structure 6. Specifically, the upper and lower ends of the base 1 are fixed to the optical system through the first connection block 4 and the second connection block 5, respectively, and the adjustable turnover structure 6 can realize the circumferential relative position between the base 1 and the first connection block 4, and between the base 1 and the second connection block 5. Adjustable.

[0037] For details of the above scheme, please refer to Figure 5The adjustable turnover structure 6 includes a sleeve hole 62 and a sleeve column 61. The inner wall of the sleeve hole 62 is convexly provided with a plurality of limit blocks 621. The outer wall of the sleeve column 61 is concavely provided with an annular limit groove 611 for the limit blocks 621 to be inserted into. The inner wall of the sleeve hole 62 is also provided with a locking hole 622 opened radially. The locking hole 622 is threadedly connected with a second locking screw 623. The end of the second locking screw 623 is squeezed by the outer wall of the annular limit groove 611 to achieve relative fixation of the sleeve column 61 and the sleeve hole 62. Among them, for the base 1 and the first connecting block 4, one of them is provided with the sleeve hole 62, and the other is provided with the sleeve column 61; for the base 1 and the second connecting block 5, one of them is provided with the sleeve hole 62, and the other is provided with the sleeve column 61; specifically, the first connecting block 4 and the second connecting block 5 are fixed on the optical system (for example, fixed by bolts), and when the second locking screw 623 is loosened, the base 1 can be rotated to adjust the circumferential position of the base 1, and after the adjustment is completed, the second locking screw 623 is re-tightened to achieve the fixation of the base 1. In this embodiment, there are two limit blocks 621, and the two limit blocks 621 and the second locking screw 623 realize three-point fixation of the sleeve column 61, which can prevent the sleeve column 61 from moving axially relative to the sleeve hole 62, and the pressure of the second locking screw 623 on the sleeve column 61 prevents the sleeve column 61 from rotating circumferentially relative to the sleeve hole 62.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fluorescent device that is easy to switch, characterized in that: include: A base, wherein a fluorescent chamber is provided in the base, a first light outlet and a second light outlet are provided at the upper and lower parts of the base respectively, a third light outlet is provided at one side of the base, and a socket is also provided at one side of the base; A fluorescent module, the fluorescent module comprising a fluorescent mirror frame and a cover plate arranged on one side of the fluorescent mirror frame, the fluorescent mirror frame is provided with a plurality of filters, the fluorescent mirror frame is inserted into the fluorescent chamber of the base through the socket, and the cover plate covers the socket; A fixing mechanism is used to achieve a fixed connection between the cover plate and the base.

2. The fluorescent device that is easy to switch according to claim 1, characterized in that: The fixing mechanism includes a plurality of magnetic blocks, and the magnetic blocks are arranged on the base and / or the cover to achieve magnetic adsorption connection between the base and the cover.

3. The fluorescent device that is easy to switch according to claim 2, characterized in that: Finger portions are recessed at the edge positions on both sides of the end surface of the base where the socket is located relative to the outer contour of the cover plate.

4. The easily switchable fluorescent device according to any one of claims 1 to 3, characterized in that: The fixing mechanism includes a first connecting hole arranged on the end face of the base where the socket is located, and a second connecting hole arranged on the cover plate; the first connecting hole corresponds to the position of the second connecting hole, the first connecting hole is a threaded hole, and the second connecting hole is a through hole; the fixing mechanism also includes a first locking screw that passes through the second connecting hole and is threadedly connected to the first connecting hole.

5. The fluorescent device that is easy to switch according to claim 1, characterized in that: A first connecting block and a second connecting block are respectively arranged on the upper and lower parts of the base; the first connecting block has a first connecting hole corresponding to the first light outlet, and the second connecting block has a second connecting hole corresponding to the second light outlet; the first connecting block and the base, as well as the second connecting block and the base, are connected via an adjustable turnover structure.

6. The fluorescent device that is easy to switch according to claim 5, characterized in that: The adjustable turnover structure includes a sleeve hole and a sleeve column, the inner wall of the sleeve hole is convexly provided with a plurality of limit blocks, the outer wall of the sleeve column is concavely provided with an annular limit groove for the limit blocks to be snapped into, the inner wall of the sleeve hole is also provided with a locking hole opened radially, and a second locking screw is threadedly connected to the locking hole; the end of the second locking screw is squeezed by the outer wall of the annular limit groove to achieve relative fixation of the sleeve column and the sleeve hole.

Images