Illuminating device for microscope

Abstract

The utility model relates to the technical field of microscopic imaging instruments, in particular to a lighting device for a microscope. Comprising a dome-shaped lighting carrier which comprises a plurality of discrete slots which are uniformly distributed; a plurality of light-emitting units, wherein one light-emitting unit is correspondingly arranged in one discrete slot; the micro-lens carrier is connected with the inner concave surface of the front side of the illumination carrier, and micro-lens slots corresponding to the discrete slots are formed in the micro-lens carrier; and a plurality of micro lenses, wherein one micro lens is correspondingly arranged in one micro lens slot. The LED lamp is simple in implementation mode, can be more easily applied to actual scenes, can improve the optical utilization efficiency based on the micro lens optical structure design, and further improves the illumination brightness and the optical power.

Description

Technical Field

[0001] The utility model relates to the technical field of microscopic imaging instruments, in particular to an illuminating device for a microscope. Background Art

[0002] Modern optical microscopes usually use Köhler illumination, using tungsten lamps as the illumination source to achieve common microscopic imaging modes such as bright field, dark field, and phase contrast. Traditional Köhler illumination currently has two limitations, making it difficult to adapt to the development and commercialization of microscopy technology in the past decade: 1. Low degree of control freedom, unable to achieve illumination angle control, spatial coherence control, and difficult to be applied to computational imaging methods that have developed rapidly in recent years, such as Fourier stack imaging, quantitative differential phase contrast imaging, and light intensity diffraction tomography; 2. Large illumination angles need to be achieved by installing additional top lenses, the optical structure is complex, and it is difficult to achieve long working distance illumination. In the field of microscopic imaging, illumination is crucial to achieving high resolution, high resolution, and accurate quantitative phase recovery. When illumination is applied to actual scenarios, such as pathological slice imaging and blood smear imaging, there is an urgent need for an imaging device that is simpler and more practical than Köhler illumination. Utility Model Content

[0003] The purpose of the utility model is to provide an illumination device for a microscope to solve the above technical problems;

[0004] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0005] An illumination device for a microscope, comprising:

[0006] A dome-shaped lighting carrier includes a plurality of evenly distributed discrete slots;

[0007] A plurality of light-emitting units, one of the light-emitting units is correspondingly arranged in one of the discrete slots;

[0008] a micro lens carrier connected to the front inner concave surface of the lighting carrier, the micro lens carrier being provided with a micro lens slot corresponding to the discrete slot;

[0009] A plurality of micro lenses, one of the micro lenses is correspondingly arranged in one of the micro lens slots.

[0010] Preferably, the discrete slots are distributed in a dome-shaped circle in the lighting carrier, and the discrete slots have a set axial direction.

[0011] Preferably, the number and spatial distribution of the microlens slots correspond to those of the discrete slots.

[0012] Preferably, the microlens carrier is a dome-shaped structure, and the convex surface of the outer surface of the microlens carrier is connected to the front inner concave surface of the lighting carrier.

[0013] Preferably, the outer convex surface of the microlens carrier and the front inner concave surface of the lighting carrier have the same area and shape.

[0014] Preferably, the head of each of the light-emitting units is a light-emitting portion, and a connecting wire is led out from the tail of the light-emitting unit and extends out of the discrete slot.

[0015] Preferably, the connecting wires are positive and negative wires, and the positive and negative wires are connected to an external power source.

[0016] Preferably, the number of the discrete slots is 6 to 51.

[0017] Preferably, the light emitting unit is an LED component.

[0018] Preferably, the lighting carrier and the microlens carrier are made of black alloy.

[0019] Beneficial effects of the present invention: Due to the adoption of the above technical solution, the present invention is simple to implement and can be more easily applied to actual scenes. Based on the microlens optical structure design, it can improve optical utilization efficiency and further improve lighting brightness and optical power. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A side view of the lighting device in the embodiment of the utility model;

[0021] Figure 2 It is a top view of the lighting device in the embodiment of the utility model.

[0022] In the attached drawings: 1. lighting carrier; 11. discrete slot; 2. light-emitting unit; 21. positive and negative electrode lines; 3. microlens carrier; 31. microlens slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0026] An illumination device for a microscope, such as Figure 1 , Figure 2 As shown, including

[0027] A dome-shaped lighting carrier 1 includes a plurality of evenly distributed discrete slots 11;

[0028] A plurality of light emitting units 2, one light emitting unit 2 is correspondingly arranged in one discrete slot 11;

[0029] A micro lens carrier 3 connected to the front inner concave surface of the lighting carrier 1, the micro lens carrier 3 is provided with a micro lens slot 31 corresponding to the discrete slot 11;

[0030] A plurality of micro lenses, one micro lens is correspondingly disposed in one micro lens slot 31 .

[0031] Specifically, the utility model proposes an illumination device for a microscope, wherein the main body of the device is composed of a dome-type illumination carrier 1, and a plurality of discrete slots 11 are provided on the illumination carrier 1, and a light-emitting unit 2 is installed in each discrete slot 11. This spatial structure can most easily and simply improve the illumination angle to achieve illumination. Specifically, the light-emitting unit 2 is an LED light-emitting unit 2, and a microlens carrier 3 is connected to the front end of the illumination carrier 1, and a microlens carrier 3 is provided with a microlens slot 31 corresponding to the illumination carrier 1, and the microlens installed in the microlens slot 31 can converge the output light of the light-emitting unit 2, thereby further improving the illumination power.

[0032] In a preferred embodiment, the discrete slots 11 are distributed in a dome-shaped circle in the lighting carrier 1 , and the discrete slots 11 have a set axial direction.

[0033] In a preferred embodiment, the number and spatial distribution of the microlens slots 31 correspond to those of the discrete slots 11 .

[0034] In a preferred embodiment, the micro lens carrier 3 is a dome-shaped structure, and the convex surface of the outer surface of the micro lens carrier 3 is connected to the front inner concave surface of the lighting carrier 1 .

[0035] In a preferred embodiment, the outer convex surface of the microlens carrier 3 and the front inner concave surface of the lighting carrier 1 have the same area and shape.

[0036] Specifically, the lighting carrier 1 and the microlens carrier 3 are dome-shaped circular structures. The lower surface of the microlens carrier 3 is the same size as the upper surface of the lighting carrier 1. Each discrete slot 11 corresponds to a microlens slot 31, which enables the microlens in the microlens slot 31 to further converge the divergent light of the light-emitting unit 2, thereby further improving the lighting power.

[0037] In a preferred embodiment, the head of each light-emitting unit 2 is a light-emitting portion, and a connecting wire is led out from the tail of the light-emitting unit 2 and extends out of the discrete slot 11 .

[0038] In a preferred embodiment, the connecting wires are positive and negative wires 21, and the positive and negative wires 21 are connected to an external power source.

[0039] Specifically, the tail of the light emitting unit 2 has positive and negative wires 21 connected to the power supply.

[0040] In a preferred embodiment, the number of discrete slots 11 is 6 to 51.

[0041] Specifically, the lighting carrier 1 is composed of 6 to 51 discrete slots 11 distributed in a dome-like circular shape, each discrete slot 11 is equipped with a light-emitting unit 2, the front end of the lighting carrier 1 is connected to the microlens carrier 3, the microlens carrier 3 is composed of a plurality of microlens slots 31, the number and spatial distribution of the microlens slots 31 are consistent with the number of discrete slots 11 of the lighting carrier 1, and each microlens slot 31 is equipped with a microlens.

[0042] In a preferred embodiment, the light emitting unit 2 is an LED component.

[0043] In a preferred embodiment, the lighting carrier 1 and the micro-lens carrier 3 are made of black alloy.

[0044] Specifically, the materials of the lighting carrier 1 and the microlens carrier 3 are black alloy materials, which are preferably capable of minimizing reflected stray light during the imaging process and improving the imaging quality.

[0045] In summary, compared with the prior art, the significant advantages of the present invention are that it is simpler to implement and easier to apply in actual scenes than the traditional Kohler lighting solution. Based on the microlens optical structure design, it can improve the optical utilization efficiency and further improve the lighting brightness and light power.

[0046] Specific embodiment 1,

[0047] A lighting device for a microscope includes a lighting carrier 1. The lighting carrier 1 is a dome-shaped structure, which is composed of a plurality of discrete slots 11 distributed in a dome-shaped circle. Each discrete slot 11 is equipped with an LED light-emitting unit 2. This spatial structure design can maximize the lighting angle of the LED. The tail of the LED light-emitting unit 2 has positive and negative lines 21 connected to the power supply. The front end of the lighting carrier 1 is connected to a microlens carrier 3. The microlens carrier 3 has a microlens slot 31 corresponding to the discrete slot 11. The microlens slot 31 is equipped with a microlens, which can further converge the divergent light of the LED to improve the lighting power. The material of the lighting carrier 1 and the microlens carrier 3 is a black alloy material, which can minimize the emitted stray light during the imaging process and improve the imaging quality.

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An illumination device for a microscope, characterized in that: include, A dome-shaped lighting carrier (1) comprising a plurality of evenly distributed discrete slots (11); A plurality of light-emitting units (2), wherein one of the light-emitting units (2) is correspondingly arranged in one of the discrete slots (11); a micro-lens carrier (3) connected to the front inner concave surface of the lighting carrier (1), the micro-lens carrier (3) being provided with a micro-lens slot (31) corresponding to the discrete slot (11); A plurality of micro lenses, one of the micro lenses is correspondingly arranged in one of the micro lens slots (31).

2. The illumination device for a microscope according to claim 1, characterized in that: The discrete slots (11) are distributed in a dome-shaped circle inside the lighting carrier (1), and the discrete slots (11) have a set axial direction.

3. The illumination device for a microscope according to claim 1, characterized in that: The number and spatial distribution of the microlens slots (31) correspond to those of the discrete slots (11).

4. The illumination device for a microscope according to claim 1, characterized in that: The microlens carrier (3) is a dome-shaped structure, and the convex surface of the outer surface of the microlens carrier (3) is connected to the front inner concave surface of the lighting carrier (1).

5. The illumination device for a microscope according to claim 4, characterized in that: The convex surface of the outer surface of the microlens carrier (3) and the concave surface on the front side of the lighting carrier (1) have the same area and shape.

6. The illumination device for a microscope according to claim 1, characterized in that: The head of each light-emitting unit (2) is a light-emitting portion, and a connecting wire is led out from the tail of the light-emitting unit (2) and extends out of the discrete slot (11).

7. The illumination device for a microscope according to claim 6, characterized in that: The connecting wires are positive and negative wires (21), and the positive and negative wires (21) are connected to an external power source.

8. The illumination device for a microscope according to claim 1, characterized in that: The number of the discrete slots (11) is 6 to 51.

9. The illumination device for a microscope according to claim 1, characterized in that: The light-emitting unit (2) is an LED component.

10. The illumination device for a microscope according to claim 1, characterized in that: The lighting carrier (1) and the microlens carrier (3) are lighting carrier (1) and microlens carrier (3) made of black alloy.

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