Shading assembly for fundus camera and fundus camera

Abstract

The utility model provides a shading assembly for a fundus camera and the fundus camera. The fundus camera comprises a mounting plate, a sliding groove is formed in one side of the mounting plate, a fixing block is slidably connected to the inner side wall of the sliding groove, a photographing opening is fixedly connected to the inner side wall of the fixing block, a transmission box is fixedly connected to one end of a lens, and a lens hood is fixedly connected to the side, away from the lens, of the transmission box; two eyeshade boxes are fixedly connected to the inner side wall of the light shield, light shield layers are laid on the inner side walls of the two eyeshade boxes, a supporting plate is fixedly connected to one side of the mounting plate, a fixing plate is fixedly connected to the upper end of the supporting plate, and two connecting blocks are fixedly connected to the upper end face of the fixing plate. According to the shading assembly of the fundus camera and the fundus camera provided by the utility model, the lens can rotate at an angle, so that the lens can be adjusted according to people with different heights, and the situation that shot pictures are inaccurate due to the fact that eyes are covered is avoided.

Description

Technical Field

[0001] The utility model relates to the field of fundus cameras, in particular to a light-shielding component for a fundus camera and a fundus camera. Background Technique

[0002] A fundus camera is an analytical instrument used in the field of clinical medicine, mainly used to examine parts of the eye such as the vitreous body, retina, and choroid. Based on the optical principle of a non-reflective indirect ophthalmoscope, through the design that the exit pupil of the illumination system and the entrance pupil of the observation system are both imaged in the patient's pupil area, it ensures that the reflections of the cornea and lens do not enter the observation system. This design enables the fundus camera to take and record high-resolution photos, helping doctors diagnose specific eye lesions and determine whether there are eye traumas, eye diseases, etc.

[0003] The existing light-shielding components mainly include a light-shielding cover, a lens, and a support. A light-shielding component is installed between the shooting component of the fundus camera and the housing to isolate the external light source from the fundus camera. It often covers the entire eye, but instead causes the internal light-shielding cover to cover the eye, resulting in problems with the shooting of the eye. Moreover, most of the current light-shielding components cannot be adjusted according to the height of the patient, often resulting in the situation where the eye is covered by the light-shielding cover.

[0004] Therefore, it is necessary to provide a new light-shielding component for a fundus camera and a fundus camera to solve the above technical problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a light-shielding component for a fundus camera and a fundus camera.

[0006] A light-shielding component for a fundus camera provided by the utility model on the one hand includes a lens. One end of the lens is fixedly connected with a transmission box. The side of the transmission box away from the lens is fixedly connected with a light-shielding cover. The inner side wall of the light-shielding cover is fixedly connected with two eye mask boxes, and light-shielding layers are laid on the inner side walls of the two eye mask boxes;

[0007] One side of the mounting plate is fixedly connected with a support plate. The upper end surface of the support plate is fixedly connected with a fixing plate. The upper end surface of the fixing plate is fixedly connected with two connecting blocks. One side of the two connecting blocks penetrates and is rotatably connected with a rotating shaft. One end of the two rotating shafts is fixedly connected with a rotating block. The upper end surfaces of the two rotating blocks are fixedly connected with a bearing block. The upper end surface of the bearing block is fixedly connected with a support frame, and the lens is embedded in the upper end surface of the support frame.

[0008] Further, one side of the outer side wall of the light-shielding cover is fixedly connected with a connecting belt, and the side of the light-shielding cover away from the connecting belt is fixedly connected with a fixing belt.

[0009] Further, both sides of the two connecting blocks are penetrated and fixedly connected with fixing bolts, and one ends of the plurality of fixing bolts penetrate through the connecting blocks.

[0010] Further, a connecting rod is fixedly connected between the two eye mask boxes.

[0011] A fundus camera provided by the second aspect of the present invention includes a mounting plate and the light-shielding component for the fundus camera. A sliding groove is formed on one side of the mounting plate, and an inner side wall of the sliding groove is slidably connected with a fixing block. An inner side wall of the fixing block is fixedly connected with a photographing port, and a lens is mounted on a rear end face of the photographing port.

[0012] Compared with the related art, the light-shielding component and the fundus camera provided by the present utility model have the following beneficial effects:

[0013] The present utility model provides a light-shielding component and a fundus camera for a fundus camera. During specific implementation, first loosen the fixing bolts, rotate the rotating shaft, so that the rotating block and the bearing block rotate, drive the support frame and the lens, so that the lens can rotate the angle, and thus adjust according to people of different heights. The eyes are covered by the light-shielding cover, the external light source is blocked by the eye mask box, and through the light-shielding layer, the effect of covering the light source is better, so that the device will not cover the eyes and cause inaccurate photographed pictures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the light-shielding component and the fundus camera provided by the present utility model;

[0015] Figure 2 is Figure 1 a schematic diagram of the structure of the light-shielding cover shown;

[0016] Figure 3 is Figure 1 a schematic diagram of the structure of the rotating mechanism shown;

[0017] Figure 4 is Figure 1 a schematic diagram of the internal structure of the rotating shaft fixing mechanism shown.

[0018] Reference numerals in the figures: 1, mounting plate; 2, sliding groove; 3, fixing block; 4, photographing port; 5, support plate; 6, fixing plate; 7, connecting block; 8, rotating shaft; 9, rotating block; 10, bearing block; 11, support frame; 12, fixing bolt; 13, lens; 14, light-shielding cover; 15, transmission box; 16, eye mask box; 17, connecting rod; 18, light-shielding layer; 19, connecting band; 20, fixing band. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Please refer to Figure 1 - Figure 4 , where Figure 1 is a schematic diagram of the overall structure of a light-shielding component for a fundus camera and a preferred embodiment of a fundus camera provided by the present utility model, Figure 2 is Figure 1 a schematic diagram of the structure of the light-shielding cover shown in Figure 3 is Figure 1 a schematic diagram of the structure of the rotating mechanism shown in Figure 4 is Figure 1 a schematic diagram of the internal structure of the rotating shaft fixing mechanism shown in

[0021] In the specific implementation process, as shown in Figure 1 - Figure 4 , a fundus camera includes a mounting plate 1. A sliding groove 2 is formed on one side of the mounting plate 1. A fixed block 3 is slidably connected to the inner side wall of the sliding groove 2. A photographing port 4 is fixedly connected to the inner side wall of the fixed block 3;

[0022] A light-shielding component for a fundus camera includes the above-mentioned fundus camera and a lens 13. One end of the lens 13 is fixedly connected to a transmission box 15. A light-shielding cover 14 is fixedly connected to the side of the transmission box 15 away from the lens 13. Two eye mask boxes 16 are fixedly connected to the inner side wall of the light-shielding cover 14. Light-shielding layers 18 are laid on the inner side walls of the two eye mask boxes 16;

[0023] One side of the mounting plate 1 is fixedly connected to a support plate 5. The upper end surface of the support plate 5 is fixedly connected to a fixing plate 6. The upper end surface of the fixing plate 6 is fixedly connected to two connecting blocks 7. One side of the two connecting blocks 7 is rotatably connected through a rotating shaft 8. One end of the two rotating shafts 8 is fixedly connected to a rotating block 9. The upper end surfaces of the two rotating blocks 9 are fixedly connected to a bearing block 10. The upper end surface of the bearing block 10 is fixedly connected to a support frame 11. The lens 13 is embedded in the upper end surface of the support frame 11. One side of the outer side wall of the light-shielding cover 14 is fixedly connected to a connecting belt 19. The side of the light-shielding cover 14 away from the connecting belt 19 is fixedly connected to a fixing belt 20. Both sides of the two connecting blocks 7 are connected and fixed by fixing bolts 12. One end of the plurality of fixing bolts 12 penetrates through the connecting block 7. A connecting rod 17 is fixedly connected between the two eye mask boxes 16. The rear end of the photographing port 4 is fixedly connected to the lens 13.

[0024] The working principle provided by the present utility model is as follows: First, loosen the fixing bolt 12 and rotate the rotating shaft 8, so that the rotating block 9 and the bearing block 10 rotate, driving the support frame 11 and the lens 13, enabling the lens 13 to rotate by an angle, and thus adjusting according to people of different heights. The eyes are covered by the light-shielding cover 14, and the external light source is blocked by the eye mask box 16. Through the light-shielding layer 18, the effect of covering the light source is better, so that the device will not cause inaccurate photos due to covering the eyes.

[0025] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0026] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A light-shielding component for a fundus camera, characterized in that, It includes a lens (13) and a mounting plate (1). One end of the lens (13) is fixedly connected to a transmission box (15). A light-shielding cover (14) is fixedly connected to the side of the transmission box (15) away from the lens (13). Two eyecup boxes (16) are fixedly connected to the inner side wall of the light-shielding cover (14), and a light-shielding layer (18) is laid on the inner side wall of each of the two eyecup boxes (16). One side of the mounting plate (1) is fixedly connected to a support plate (5). The upper end surface of the support plate (5) is fixedly connected to a fixing plate (6). Two connecting blocks (7) are fixedly connected to the upper end surface of the fixing plate (6). One end of a rotating shaft (8) penetrates through and is rotatably connected to the sides of the two connecting blocks (7). One end of each of the two rotating shafts (8) is fixedly connected to a rotating block (9). A bearing block (10) is fixedly connected to the upper end surfaces of the two rotating blocks (9). A support frame (11) is fixedly connected to the upper end surface of the bearing block (10), and the lens (13) is embedded in the upper end surface of the support frame (11).

2. The light-shielding component for a fundus camera according to claim 1, wherein, One side of the outer side wall of the light-shielding cover (14) is fixedly connected to a connecting strap (19). A fixing strap (20) is fixedly connected to the side of the light-shielding cover (14) away from the connecting strap (19).

3. The light-shielding component for a fundus camera according to claim 1, wherein, Both sides of the two connecting blocks (7) penetrate through and are connected with fixing bolts (12), and one end of each of the plurality of fixing bolts (12) penetrates through the connecting block (7).

4. The light-shielding component for a fundus camera according to claim 1, wherein A connecting rod (17) is fixedly connected between the two eyecup boxes (16).

5. A fundus camera, characterized in that, It includes a mounting plate (1) and a light-shielding component for a fundus camera according to any one of claims 1-4. A sliding groove (2) is formed on one side of the mounting plate (1). A fixing block (3) is slidably connected to the inner side wall of the sliding groove (2). A photographing port (4) is fixedly connected to the inner side wall of the fixing block (3), and the lens (13) is installed on the rear end surface of the photographing port (4).

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