Coaxial illumination mechanism of ophthalmologic operation microscope

Abstract

The utility model discloses a coaxial illumination mechanism of an ophthalmologic operation microscope, which relates to the technical field of ophthalmologic microscopes and comprises a main lens, an objective lens connecting sleeve is arranged below the main lens, and a large objective lens is arranged at the bottom of the inner side of the objective lens connecting sleeve; the light source assembly is arranged on one side of the objective lens connecting sleeve, a lens mechanism is arranged between the light source assembly and the objective lens connecting sleeve, and the lens mechanism is used for irradiating a light source of the light source assembly into the objective lens connecting sleeve in the vertical downward direction. According to the coaxial illumination mechanism of the ophthalmologic operation microscope, the lens mechanism can be used for converting a light path emitted by the light source assembly to the direction coaxial with the observation field of view of the main lens, so that irradiation light spots are more uniform, the observation definition is improved, and meanwhile the ophthalmologic operation microscope is small in overall size and convenient to carry. The use quality is improved; and meanwhile, the use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmic microscopes, in particular to a coaxial lighting mechanism for an ophthalmic surgical microscope. Background Art

[0002] The microscope used in ophthalmology is an instrument specifically designed to observe and diagnose eye diseases. Its use can help ophthalmologists diagnose and treat various eye diseases more accurately, and at the same time improve the level and effectiveness of ophthalmic medical care.

[0003] In the prior art, the ophthalmic surgical microscope currently used generally consists of a highly magnified microscope and an illumination system (light source). The illumination of the light source and the magnification of the microscope are used to facilitate viewing of the patient's eye condition. However, the illumination system on the ophthalmic surgical microscope currently used generally uses an external light source. The use of an external light source not only makes the light path on the ophthalmic surgical microscope uneven in angle, resulting in shadows, but also cannot adapt to different observation depths during use. In addition, the use of an external light source will result in a larger overall size of the ophthalmic surgical microscope. For this reason, a coaxial illumination mechanism for an ophthalmic surgical microscope is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a coaxial illumination mechanism for an ophthalmic surgical microscope to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a coaxial illumination mechanism for an ophthalmic surgical microscope, comprising:

[0006] A main lens, an objective lens connecting sleeve is provided below the main lens, and a large objective lens is provided at the bottom of the inner side of the objective lens connecting sleeve;

[0007] A light source assembly is arranged at one side of the objective lens connecting sleeve. A lens mechanism is arranged between the light source assembly and the objective lens connecting sleeve. The lens mechanism is used to irradiate the light source of the light source assembly into the objective lens connecting sleeve in a vertical downward direction.

[0008] Preferably, the lens mechanism comprises a lens mounting frame, a lens assembly sleeve is fixedly inserted on the side of the lens mounting frame facing the light source assembly, and the top end of the lens mounting frame away from the lens assembly sleeve extends into the objective lens connecting sleeve and is fixedly connected with a right-angle prism.

[0009] Preferably, a second dust cover and a first dust cover are fixedly connected to the middle of the lens mounting frame, and the first dust cover is located between the second dust cover and the right-angle prism.

[0010] Preferably, the light source assembly includes an LED module, a heat sink is provided on one side of the objective lens connecting sleeve, the LED module is fixedly mounted on the side of the heat sink facing the objective lens connecting sleeve, a radiator bracket is fixedly connected to the bottom of the radiator facing the objective lens connecting sleeve, an inclined block is fixedly connected to the outer wall of the objective lens connecting sleeve, the inclined block is fixedly connected to the radiator bracket, and the lens mounting frame is fixedly connected to the inclined block and the radiator bracket.

[0011] Preferably, the inner bottom of the objective lens connecting sleeve is threadedly connected to the outer wall of the large objective lens, and a bracket is fixedly provided on the outside of the objective lens connecting sleeve and the main lens.

[0012] Preferably, a fan bracket is fixedly mounted on the inner side wall of the bracket, and a fan is mounted in the fan bracket.

[0013] Technical effects and advantages of the utility model:

[0014] The coaxial lighting mechanism of the ophthalmic surgical microscope provided by the utility model can utilize a lens mechanism to convert the light path emitted by the light source assembly to a direction coaxial with the observation field of the main lens, so that the irradiated light spot is more uniform and the clarity of observation is improved. At the same time, the overall size of the ophthalmic surgical microscope is small, which improves the quality of use and better meets the use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the partial sectional structure of the front side of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the disassembled parts of the utility model.

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0019] In the figure: 1. Main lens; 2. Dust cover 2; 3. Dust cover 1; 4. Lens assembly sleeve; 5. Lens mounting frame; 6. Right-angle prism; 7. Objective lens connecting sleeve; 8. Bevel block; 9. Radiator bracket; 10. LED module; 11. Radiator; 12. Bracket; 13. Large objective lens; 14. Fan bracket; 15. Fan. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides Figure 1-4 The coaxial illumination mechanism of the ophthalmic surgical microscope shown comprises a main lens 1 and a light source assembly, wherein an objective lens connecting sleeve 7 is provided below the main lens 1, and a large objective lens 13 is provided at the inner bottom of the objective lens connecting sleeve 7. The main lens 1 cooperates with the objective lens connecting sleeve 7 and the large objective lens 13 to form an ophthalmic surgical microscope, wherein the inner bottom of the objective lens connecting sleeve 7 is threadedly connected to the outer wall of the large objective lens 13, and the objective lens connecting sleeve 7 and the large objective lens 13 are threadedly connected, which is convenient for disassembly, assembly and adjustment; the light source assembly is arranged at one side of the objective lens connecting sleeve 7, and a lens mechanism is arranged between the light source assembly and the objective lens connecting sleeve 7, and the lens mechanism is used to irradiate the light source of the light source assembly into the objective lens connecting sleeve 7 along a vertical downward direction, and through the lens mechanism, the light path on the light source assembly is magnified and refracted by the lens mechanism, so that the light path on the light source assembly can be coaxial with the observation field of the main lens 1, so that the irradiation of the light path is more uniform, and the doctor can observe more clearly, and at the same time, such a design does not require an external light source, and compared with the external official in the prior art, the overall volume of the ophthalmic surgical microscope is reduced, and it is more convenient to use.

[0022] In a preferred embodiment, the lens mechanism includes a lens mounting frame 5, and a lens group sleeve 4 is fixedly inserted on the side of the lens mounting frame 5 facing the light source assembly. The lens mounting frame 5 extends away from the top end of the lens group sleeve 4 to the objective lens connecting sleeve 7 and is fixedly connected to a right-angle prism 6. The port of the lens mounting frame 5 corresponds to the light source assembly and is sealed, so that the light path on the light source assembly passes through the lens in the lens group sleeve 4 and is magnified and irradiated on the right-angle prism 6. After refraction by the right-angle prism 6, the light path can remain coaxial with the observation market. Dust cover 2 2 and dust cover 1 3 are fixedly connected to the middle part of the lens mounting frame 5 respectively. Dust cover 1 3 is located between dust cover 2 2 and the right-angle prism 6. The coordinated use of dust cover 2 2 and dust cover 1 3 can facilitate disassembly and assembly while sealing the lens mounting frame 5, thereby maintaining the stability of the light path transmitted in the lens mounting frame 5.

[0023] Furthermore, the light source assembly includes an LED module 10. A radiator 11 is provided on one side of the objective lens connecting sleeve 7. The LED module 10 provides a light source, and cooperates with the radiator 11 to dissipate heat for the LED module 10, so that the service life of the LED module 10 can be extended while improving its use effect. The LED module 10 is fixedly installed on the side of the radiator 11 facing the objective lens connecting sleeve 7. The bottom of the radiator 11 facing the objective lens connecting sleeve 7 is fixedly connected with a radiator bracket 9. An outer wall of the objective lens connecting sleeve 7 is fixedly connected with an inclined block 8, and the inclined block 8 is fixedly connected to the radiator bracket 9. The cooperation between the inclined block 8 and the radiator bracket 9 ensures that the connection between the radiator 11 and the objective lens connecting sleeve 7 remains stable. At the same time, it is convenient to disassemble, the lens mounting frame 5 is fixedly connected to the inclined block 8 and the radiator bracket 9, and the inclined block 8 and the radiator bracket 9 can also play an auxiliary supporting role for the lens mounting frame 5, the objective lens connecting sleeve 7 and the outside of the main lens 1 are fixedly provided with a bracket 12, the inner side wall of the bracket 12 is fixedly installed with a fan bracket 14, and a fan 15 is installed in the fan bracket 14, the fan bracket 14 cooperates with the fan 15, and the air outlet direction of the fan 15 is facing the radiator 11, and the air flow can be caused to circulate quickly after the fan 15 is powered on, so as to generate wind force to contact the surface of the radiator 11, so as to achieve the blowing and heat dissipation of the radiator 11, thereby improving the heat dissipation effect and efficiency of the LED module 10.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 coaxial illumination mechanism for an ophthalmic surgical microscope, characterized in that: include: A main lens (1), wherein an objective lens connecting sleeve (7) is provided below the main lens (1), and a large objective lens (13) is provided at the inner bottom of the objective lens connecting sleeve (7); A light source assembly is arranged at one side of the objective lens connecting sleeve (7), a lens mechanism is arranged between the light source assembly and the objective lens connecting sleeve (7), and the lens mechanism is used to irradiate the light source of the light source assembly into the objective lens connecting sleeve (7) in a vertical downward direction.

2. The coaxial illumination mechanism of an ophthalmic surgical microscope according to claim 1, characterized in that: The lens mechanism comprises a lens mounting frame (5), a lens assembly sleeve (4) is fixedly inserted into a side of the lens mounting frame (5) facing the light source assembly, and the lens mounting frame (5) extends away from the top end of the lens assembly sleeve (4) into an objective lens connecting sleeve (7) and is fixedly connected to a right-angle prism (6).

3. The coaxial illumination mechanism of an ophthalmic surgical microscope according to claim 2, characterized in that: The middle of the lens mounting frame (5) is respectively fixedly connected with a second dust cover (2) and a first dust cover (3), and the first dust cover (3) is located between the second dust cover (2) and the right-angle prism (6).

4. The coaxial illumination mechanism of an ophthalmic surgical microscope according to claim 2, characterized in that: The light source assembly comprises an LED module (10); a heat sink (11) is provided on one side of the objective lens connecting sleeve (7); the LED module (10) is fixedly mounted on the side of the heat sink (11) facing the objective lens connecting sleeve (7); a heat sink bracket (9) is fixedly connected to the bottom of the side of the heat sink (11) facing the objective lens connecting sleeve (7); an inclined block (8) is fixedly connected to the outer wall of the objective lens connecting sleeve (7); the inclined block (8) is fixedly connected to the heat sink bracket (9); and the lens mounting frame (5) is fixedly connected to the inclined block (8) and the heat sink bracket (9).

5. The coaxial illumination mechanism of an ophthalmic surgical microscope according to claim 1, characterized in that: The inner bottom of the objective lens connecting sleeve (7) is threadedly connected to the outer wall of the large objective lens (13), and a bracket (12) is fixedly provided on the outside of the objective lens connecting sleeve (7) and the main lens (1).

6. The coaxial illumination mechanism of an ophthalmic surgical microscope according to claim 5, characterized in that: A fan bracket (14) is fixedly mounted on the inner side wall of the bracket (12), and a fan (15) is mounted inside the fan bracket (14).

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