Gear linkage focusing system of medical eyeshade

Abstract

The invention discloses a gear linkage focusing system of a medical eyeshade, and relates to the technical field of medical equipment. Comprising an eyeshade body which is provided with two eye socket parts; the spectroscope is arranged at one end of the eye socket part, and the spectroscope is obliquely arranged; the lens holder is arranged at one end, far away from the spectroscope, of the eye socket part; the camera module is arranged on the lens frame and faces the spectroscope; and the focusing assembly is arranged on the lens frame, and the focusing assembly is used for adjusting the focal length of the camera module. According to the invention, the focusing assembly is arranged, so that the distance between the camera module and the spectroscope is adjusted, the focal length is adjusted, the parallelism of the camera module can be adjusted, and the camera module is finely adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a gear-linked focusing system for a medical eye mask. Background Art

[0002] Benign paroxysmal positional vertigo (BPPV), also known as otolithiasis, is a common peripheral vestibular disease and one of the most common causes of vertigo. BPPV can cause brief episodes of mild to severe dizziness, typically triggered by specific changes in the patient's head position. These can occur when the patient raises or lowers their head, lies down, turns over, or sits up in bed.

[0003] When conducting a benign paroxysmal positional vertigo examination, a medical eye mask is often required to collect and analyze eye movement information from both eyes. However, existing medical eye masks cannot adjust the focus and cannot accurately collect information from the user. Summary of the Invention

[0004] The main purpose of the present invention is to provide a gear-linked focusing system for a medical eye mask to solve the above-mentioned problems.

[0005] To achieve the above-mentioned object, the present invention provides a gear-linked focusing system for a medical eye mask, comprising:

[0006] An eye mask body, wherein the eye mask body is provided with two eye sockets;

[0007] A beam splitter, the beam splitter being arranged at one end of the eye socket portion and being tilted;

[0008] a lens holder, the lens holder being arranged at an end of the eye socket away from the beam splitter;

[0009] A camera module, which is arranged on the lens holder and faces the beam splitter;

[0010] A focusing assembly is provided on the lens holder and is used to adjust the focal length of the camera module.

[0011] Furthermore, the camera module includes a lens barrel, a lens is provided at a first end of the lens barrel, a fixing plate is provided at a second end, a plurality of first threaded holes are uniformly distributed on the fixing plate, and second threaded holes corresponding to the first threaded holes are provided on the lens holder, the fixing plate and the lens holder are connected by screws, the screws are respectively threadedly connected to the first threaded holes and the second threaded holes, a spring is sleeved on the screws, and the spring is located between the fixing plate and the lens holder;

[0012] The lens frame is provided with a lens hole, the lens barrel is sleeved in the lens hole, and the second threaded holes are uniformly distributed around the lens hole in the circumferential direction.

[0013] Furthermore, the lens barrel includes an inner lens barrel and an outer lens barrel, the first end of the inner lens barrel is sleeved in the outer lens barrel, the inner lens barrel and the outer lens barrel are threadedly connected, the lens is arranged at the second end of the inner lens barrel away from the outer lens barrel, the fixing plate is arranged on the outer lens barrel, and the outer lens barrel is detachably connected to the lens hole.

[0014] Furthermore, a focusing hole is provided on the lens holder, and the focusing assembly includes:

[0015] A large gear, the large gear being sleeved on the outer side of the second end of the inner lens barrel;

[0016] A rotating shaft, the rotating shaft is sleeved in the focusing hole and rotatably connected to the focusing hole;

[0017] a small gear, the small gear being coaxially connected to the first end of the rotating shaft and meshing with the large gear;

[0018] A focusing gear is coaxially connected to the second end of the rotating shaft.

[0019] Furthermore, sealing rings are provided at both ends of the threaded connection between the inner lens barrel and the outer lens barrel.

[0020] Furthermore, a nylon washer is sleeved on the screw, and the nylon washer is located between the spring and the fixing plate.

[0021] Furthermore, the threads of the outer wall of the inner lens barrel and the inner wall of the outer lens barrel are polished.

[0022] Furthermore, the outer wall of the inner lens barrel and the inner wall of the outer lens barrel are coated with Teflon coating.

[0023] The present invention is provided with a focusing assembly to adjust the distance between the camera module and the spectroscope to achieve focal length adjustment, and can also adjust the parallelism of the camera module to make subtle adjustments to the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic structural diagram of a gear-linked focusing system for a medical eye mask according to the present invention.

[0025] Figure 2 The figure is a schematic diagram of the outer contour of a gear-linked focusing system of a medical eye mask according to the present invention.

[0026] Figure 3 This is a schematic diagram of a camera module of a gear-linked focusing system for a medical eye mask according to the present invention.

[0027] Among them, 1-eye mask body; 2-beam splitter; 3-lens holder; 4-camera module; 41-fixing plate; 42-screw; 43-spring; 44-inner lens barrel; 45-outer lens barrel; 46-nylon washer; 5-focusing assembly; 51-large gear; 52-rotating shaft; 53-small gear; 54-focusing gear; 6-housing; 7-cover. DETAILED DESCRIPTION

[0028] In order to achieve the above-mentioned objectives and effects, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0029] like Figure 1-Figure 3 As shown, the present invention provides a gear-linked focusing system for a medical eye mask, comprising:

[0030] An eye mask body 1, which is provided with two eye sockets;

[0031] Beam splitter 2, the beam splitter 2 is arranged at one end of the eye socket, and the beam splitter 2 is arranged tilted;

[0032] The lens frame 3 is arranged at one end of the eye socket away from the beam splitter 2;

[0033] The camera module 4 is arranged on the lens holder 3 and faces the beam splitter 2;

[0034] The focusing assembly 5 is arranged on the lens holder 3 and is used to adjust the distance between the camera module 4 and the beam splitter 2 .

[0035] Specifically, a shell 6 is provided on the eye mask body 1, the spectrometer 2, the lens holder 3 and the camera module 4 are all located in the shell 6, one end of the focusing assembly 5 is located in the shell 6, and the other end extends out of the shell 6; an opening is provided at the end of the shell 6 away from the eye mask body, and a cover plate 7 is provided at the opening.

[0036] In this embodiment, the camera module 4 includes a lens barrel, a lens is provided at the first end of the lens barrel, and a fixing plate 41 is provided at the second end. A plurality of first threaded holes are evenly distributed on the fixing plate 41, and a second threaded hole corresponding to the first threaded hole is provided on the lens frame 3. The fixing plate 41 and the lens frame 3 are connected by screws 42, and the screws 42 are threadedly connected to the first threaded hole and the second threaded hole respectively. A spring 43 is sleeved on the screw 42, and the spring 43 is located between the fixing plate 41 and the lens frame 3; a lens hole is provided on the lens frame 3, and the lens barrel is sleeved in the lens hole, and the second threaded holes are evenly distributed circumferentially around the lens hole.

[0037] The spring 43 will leave a certain gap between the fixing plate 41 and the lens frame 3. At the same time, the user can also adjust the parallelism between the lens barrel and the lens frame 3 by rotating the screws 42 in different positions, thereby adjusting the direction of the lens barrel.

[0038] Specifically, a nylon washer 46 is sleeved on the screw 42 , and the nylon washer 46 is located between the spring 43 and the fixing plate 41 .

[0039] In this embodiment, the lens barrel includes an inner lens barrel 44 and an outer lens barrel 45. The first end of the inner lens barrel 44 is sleeved in the outer lens barrel 45. The inner lens barrel 44 and the outer lens barrel 45 are threadedly connected. The lens is arranged at the second end of the inner lens barrel 44 away from the outer lens barrel 45. The fixing plate 41 is arranged on the outer lens barrel 45, and the outer lens barrel 45 is detachably connected to the lens hole.

[0040] Specifically, the lens holder 3 is provided with a focusing hole, and the focusing assembly 5 includes:

[0041] A large gear 51 is sleeved on the outer side of the second end of the inner lens barrel 44;

[0042] A rotating shaft 52 is sleeved in the focusing hole and is rotatably connected to the focusing hole;

[0043] A small gear 53 , the small gear 53 is coaxially connected to the first end of the rotating shaft 52 , and the small gear 53 is meshed with the large gear 51 ;

[0044] The focusing gear 54 is coaxially connected to the second end of the rotating shaft 52 , and the focusing gear 54 is located outside the housing 6 .

[0045] Therefore, when the user rotates the focusing gear 54, the focusing gear 54 can drive the large gear 51 to rotate, and then drive the inner lens barrel 44 to rotate. When the inner lens barrel 44 rotates, due to the threaded fit between the inner lens barrel 44 and the outer lens barrel 45, the inner lens barrel 44 will move along the axial direction, thereby changing the distance between the lens on the inner lens barrel 44 and the spectrometer 2, thereby achieving a change in focal length.

[0046] Specifically, a keyway is provided on the lens holder 3 , and a guide pin that cooperates with the keyway is provided on the outer lens barrel 45 , thereby preventing the outer lens barrel 45 from rotating with the inner lens barrel 44 .

[0047] In this embodiment, sealing rings are provided at both ends of the threaded connection between the inner lens barrel 44 and the outer lens barrel 45 to prevent dust and moisture from entering and affecting the accuracy of focusing.

[0048] In this embodiment, the threads of the outer wall of the inner lens barrel 44 and the inner wall of the outer lens barrel 45 are polished. The outer wall of the inner lens barrel 44 and the inner wall of the outer lens barrel 45 are coated with Teflon. This reduces the friction between the inner lens barrel 44 and the outer lens barrel 45, improving the smoothness and accuracy of focusing.

[0049] The above descriptions are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the guidance of the present invention, and any technical solutions that are the same or similar to those of the present invention, fall within the scope of protection of the present invention.

Claims

1. A gear-linked focusing system for a medical eye mask, characterized in that: include: An eye mask body (1), wherein the eye mask body (1) is provided with two eye sockets; A beam splitter (2), the beam splitter (2) being arranged at one end of the eye socket, and the beam splitter (2) being arranged at an angle; A lens frame (3), the lens frame (3) being arranged at one end of the eye socket portion away from the beam splitter (2); A camera module (4), the camera module (4) being arranged on the lens frame (3) and facing the beam splitter (2); A focusing assembly (5), the focusing assembly (5) being arranged on the lens frame (3), and the focusing assembly (5) being used to adjust the focal length of the camera module (4).

2. The gear-linked focusing system for a medical eye mask according to claim 1, wherein: The camera module (4) comprises a lens barrel, a lens is provided at a first end of the lens barrel, a fixing plate (41) is provided at a second end, a plurality of first threaded holes are evenly distributed on the fixing plate (41), a second threaded hole corresponding to the first threaded hole is provided on the lens frame (3), the fixing plate (41) and the lens frame (3) are connected by screws (42), the screws (42) are respectively threadedly connected to the first threaded hole and the second threaded hole, a spring (43) is sleeved on the screw (42), and the spring (43) is located between the fixing plate (41) and the lens frame (3); The lens frame (3) is provided with a lens hole, the lens barrel is sleeved in the lens hole, and the second threaded holes are evenly distributed around the lens hole in the circumferential direction.

3. The gear-linked focusing system for a medical eye mask according to claim 2, wherein: The lens barrel comprises an inner lens barrel (44) and an outer lens barrel (45), the first end of the inner lens barrel (44) is sleeved in the outer lens barrel (45), the inner lens barrel (44) and the outer lens barrel (45) are threadedly connected, the lens is arranged at the second end of the inner lens barrel (44) away from the outer lens barrel (45), the fixing plate (41) is arranged on the outer lens barrel (45), and the outer lens barrel (45) is detachably connected to the lens hole.

4. The gear-linked focusing system for a medical eye mask according to claim 3, wherein: The lens frame (3) is provided with a focusing hole, and the focusing assembly (5) comprises: A large gear (51), the large gear (51) being sleeved on the outer side of the second end of the inner lens barrel (44); a rotating shaft (52), the rotating shaft (52) being sleeved in the focusing hole and rotatably connected to the focusing hole; a small gear (53), the small gear (53) being coaxially connected to the first end of the rotating shaft (52), and the small gear (53) being meshed with the large gear (51); A focusing gear (54) is coaxially connected to the second end of the rotating shaft (52).

5. The gear-linked focusing system for a medical eye mask according to any one of claims 3 to 4, wherein: Sealing rings are provided at both ends of the threaded connection between the inner lens barrel (44) and the outer lens barrel (45).

6. The gear-linked focusing system for a medical eye mask according to claim 5, wherein: A nylon washer (46) is sleeved on the screw (42), and the nylon washer (46) is located between the spring (43) and the fixing plate (41).

7. The gear-linked focusing system for a medical eye mask according to claim 5, wherein: The threads of the outer wall of the inner lens barrel (44) and the inner wall of the outer lens barrel (45) are polished.

8. The gear-linked focusing system for a medical eye mask according to claim 5, wherein: The outer wall of the inner lens barrel (44) and the inner wall of the outer lens barrel (45) are coated with a Teflon coating.

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