Optical transmission device for a shaft control instrument and shaft control instrument

Abstract

This invention relates to the field of optical equipment, specifically to a light transmission device for an axis control instrument and the axis control instrument itself. The device includes: a light source emitting a diverging light beam; and a light guide mounted on a movable support frame, one end of which is connected to the light source, and the other end extending away from the light source beyond the support frame. The light guide has an internal light guiding channel, through which the diverging light beam emitted by the light source enters and is guided by the light guide to form an eye-observable light spot. This application uses a light source emitting a diverging light beam and a light guide capable of transporting and processing the diverging light source into a suitable eye-observable light spot, thus reducing light stimulation to the user's eyes. This differs from the conventional design of laser light sources commonly used in the prior art, achieving efficient and comfortable eye correction.

Description

Technical Field

[0001] This invention relates to the field of optical equipment, specifically to a light transmission device for an axis control instrument and an axis control instrument. Background Technology

[0002] In recent years, low-energy red light therapy has been widely used in ophthalmology fields such as myopia control, eye fatigue relief, and improvement of fundus function. Existing red light therapy devices mostly use laser light sources as the main light emitters, transmitting red light to the human eye via optical fibers for treatment. While laser light sources have advantages such as good monochromaticity, strong directionality, and concentrated energy, their high output beam coherence and relatively concentrated energy density present significant drawbacks in actual clinical and home use: Firstly, the high directivity of the laser beam can easily cause uneven energy distribution in the illuminated area, with excessively high local light intensity causing strong stimulation to the human eye, leading to symptoms such as glare, eye strain, and visual discomfort, resulting in poor tolerance, especially unsuitable for people with sensitive eyes and adolescents; secondly, the laser light source requires stringent driving and control precision, and improper control poses potential optical safety risks. Furthermore, the high cost of laser modules hinders the widespread adoption and home use of these devices. Additionally, existing technologies have poor adaptability and cannot provide a comfortable fit for different users.

[0003] Therefore, it is necessary to provide an optical transmission device for an axis control instrument and an axis control instrument in general. Summary of the Invention

[0004] The purpose of this invention is to provide an optical transmission device and an axis control instrument for use in axis control instruments, thereby improving adaptability to different users and enhancing the comfort of the user's eyes, in order to solve the defects and unmet technical requirements of existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a light transmission device for an axis control instrument, comprising: A light source that emits a diverging light beam; A light guide is provided on a movable support frame, with one end connected to a light source and the other end extending away from the light source and beyond the support frame. The light guide component has a light guide channel inside, and the divergent light beam emitted by the light source enters the light guide channel and is transported by the light guide component to form an eye-viewing light spot.

[0006] In this application, the light source is mounted on the light guide.

[0007] Preferably, the light source is a light-emitting diode; Preferably, the light guide is an optical fiber.

[0008] Preferably, the length L1 of the light guide between the support frame and the light source is 30-250 mm; Preferably, the diameter Φ of the light guide channel is 1-10mm.

[0009] Preferably, the end of the light guide away from the light source passes through the middle of the support frame and continues to extend away from the light source, with an extension distance L2 of 1-10mm, and the height L3 of the support frame is 25-35mm.

[0010] Preferably, the cross-sectional shape of the light guide is circular, triangular, quadrilateral, pentagonal, or hexagonal.

[0011] It should be noted that in this application, the cross-section of the light guide channel can also be circular, triangular, quadrilateral, pentagonal or hexagonal, but the shape of the light guide channel and the light guide component can be different or the same.

[0012] Preferably, the material of the light guide is acrylic, polycarbonate (PC), polystyrene (PS), or high-purity quartz glass.

[0013] Preferably, the light guide is arranged perpendicular to the support frame.

[0014] Preferably, an axis control device includes an interpupillary distance adjustment mechanism, a light transmission device, and a housing, wherein a support mechanism is connected to the housing and is used to install and support the interpupillary distance adjustment mechanism and the light transmission device; The interpupillary distance adjustment mechanism includes an adjustment component and a limiting component. The adjustment component includes an adjustment wheel and a transmission component. The adjustment wheel is connected to the transmission component. The transmission component is integrally formed with the support frame or the transmission component is fastened to the support frame. The limiting component includes a limiting cavity, which is used to limit and guide the movement of the transmission component; The adjusting wheel drives the transmission component to move under the guidance of the limiting cavity, thereby driving the corresponding support frame to move, so that the corresponding light guide component moves with the support frame. The outer casing is used to encapsulate the interpupillary distance adjustment mechanism and the light transmission device.

[0015] Preferably, the limiting component further includes at least one limiting member, which moves within the limiting cavity, and the limiting member is integrally formed with the transmission member or the limiting member is fastened to the transmission member. The limiting assembly further includes at least one limiting frame and at least one limiting component, with a limiting cavity provided on the limiting frame; In this application, the limiting component can be set to 1, 2 or 4 as needed. The limiting frame is used in conjunction with the limiting component. Different limiting components and different limiting frames have different cooperation relationships. The number of limiting frames can be selected as 1 or 2 as needed.

[0016] The limiting frame and the limiting component are integrally formed, or the limiting frame and the limiting component are fastened together. The limiting cavity limits and guides the movement of the limiting component, thereby limiting and guiding the movement of the transmission component, so as to realize the limiting and guiding of the movement of the light guide component.

[0017] Preferably, the transmission component is provided with a first gear tooth, and the adjusting wheel is provided with a second gear tooth, wherein the first gear tooth on the transmission component and the second gear tooth on the adjusting wheel are meshed and connected. The transmission component uses a toothed connection, which meshes with the adjusting wheel.

[0018] Preferably, the adjustment assembly further includes a connecting shaft, on which an adjustment wheel is sleeved, and on which an operating part is provided; The adjusting wheel can rotate around the connecting shaft, or the adjusting wheel can rotate synchronously with the connecting shaft; The connecting shaft is installed inside the limiting component.

[0019] Preferably, the limiting cavity is designed as a through groove or a recess, and the cross-section of the limiting cavity can be polygonal or arc-shaped, with its shape preferably being flat and elongated.

[0020] Preferably, the light source includes a light source, a light emitter, and a circuit board. The light source is installed in the light emitter, the light emitter is installed on the circuit board, and the circuit board is connected to a light guide, so that the light source is located in the light guide channel, and the light emitter can limit, protect, and dissipate heat for the light source.

[0021] Preferably, the light source is disposed on the light source mounting component, and the light source mounting component is connected to the light guide component (that is, the light guide component and the light source are connected through the light source mounting component, which increases the stability of the connection between the two, and the light source mounting component is slidably connected to the inner side wall of the housing, which can improve the stability during movement). Preferably, it further includes a light guide sleeve, a transparent plate, and a soft rubber sleeve for the light guide component. The light guide sleeve is installed on the end of the light guide component away from the light source, and the light guide sleeve is connected to the soft rubber sleeve for the light guide component. A transparent plate is provided between the soft rubber sleeve for the light guide component and the light guide sleeve.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. In this application, a light source that emits a divergent beam is used, and a light guide that can transport the divergent light source and process it into a qualified light spot that enters the eye is used. This can reduce the stimulation of light on the user's eyes. It is different from the conventional design of laser light sources commonly used in the prior art. It can efficiently and comfortably control myopia in the human eye.

[0023] 2. This invention adjusts the light guide by engaging the adjusting wheel with the transmission component, thereby adjusting the interpupillary distance. The adjusting wheel in this application has both an operating part and a transmission component (preferably a toothed component). During this process, the limiting cavity limits and guides the limiting component connected to the transmission component, thereby limiting and guiding the light guide. Since the adjusting wheel can independently adjust a single light guide, the interpupillary distance adjustment method in this application is diversified. Furthermore, this application has a rotating component, providing users with different angles and heights, further expanding the scope of application of this application. In summary, the beneficial effects of this application compared to the prior art are multiple stable interpupillary distance adjustment methods, with good applicability and scope of application. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the axis control device in this invention; Figure 2 This is a partial structural schematic diagram of the light transmission device in this invention; Figure 3 This is a simplified schematic diagram illustrating the positional and dimensional relationship between the first support frame and the light guide in this invention. Figure 4 This is a partial structural schematic diagram of the optical transmission device in the axis control instrument of the present invention; Figure 5 This is a partial structural exploded view of the optical transmission device; Figure 6 This is an exploded view of the overall structure of the axis control device in this invention; Figure 7 This is a partial structural schematic diagram of the axis control device in this invention; Figure 8 This is a schematic diagram of the pupil distance adjustment mechanism in the axis control device of the present invention; Figure 9 This is a partially enlarged schematic diagram of the adjustment component and the limiting component in the interpupillary distance adjustment mechanism of the axis control instrument of the present invention; Figure 10 This is a component diagram of a limiting frame in the interpupillary distance adjustment mechanism of the axis control instrument of the present invention; Figure 11 for Figure 6 Another angle view of the limit frame shown; Figure 12 This is a schematic diagram of the combined structure of the support frame and transmission components in the pupil distance adjustment mechanism of the axis control instrument of the present invention; Figure 13 The pupil distance adjustment mechanism in the axis control device of the present invention is different from that in the present invention. Figure 6 The diagram shown is a structural schematic of a limiting frame; Figure 14 This is a schematic diagram of the light source structure; Figure 15This is a schematic diagram of the rotating component structure in the axis control device of the present invention; In the diagram: 1. Light source; 2. Light guide; 5. Housing; 6. Adjustment component; 7. Limiting component; 8. Adjustment wheel; 9. Transmission component; 10. Limiting cavity; 11. Limiting component; 12. Limiting frame; 13. First gear tooth; 14. Second gear tooth; 15. Connecting shaft; 16. Operating part; 17. Support component; 18. Base; 19. Display screen; 20. Main board; 21. NFC module; 22. Rotating component; 23. Inner sleeve of rotating shaft; 24. Outer sleeve of rotating shaft; 25. Light source mounting component; 26. Light source; 27. Light emitter; 28. Circuit board; 29. ​​First support frame; 30. Second support frame; 31. Third support frame; 32. Light guide sleeve; 33. Transparent plate; 34. Soft rubber sleeve of light guide component; 35. Detailed Implementation

[0025] The following will refer to the appendices in the embodiments of the present invention. Figure 1-15 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0027] Please see Figure 1-15 Embodiments of the present invention: Example 1: like Figure 1-6 As shown: A light transmission device for an axis control instrument, comprising: Light source 1, which emits a diverging light beam; Light guide 2, which is disposed on a movable support frame, one end of which is connected to the light source 1, and the other end extends away from the light source 1 and extends outside the support frame; The light guide 2 has a light guide channel inside. The divergent light beam emitted by the light source 1 enters the light guide channel and is transported by the light guide 2 to form an eye-viewing light spot.

[0028] In this embodiment, the light source 1 is mounted on the light guide 2. In addition, specifically, the support frame includes at least a first support frame 30, a second support frame 31, and a third support frame 32. The first support frame 30 is used to mount the light guide 2, and the first support frame 30 is disposed inside the second support frame 31 to stabilize the light guide 2 inside the second support frame 31. The second support frame 31 is disposed on the third support frame 32, and the third support frame 32 can move within the outer shell 5. The light source 1 is a light-emitting diode; The light guide 2 is an optical fiber.

[0029] The length L1 of the light guide 2 between the support frame and the light source 1 is 50mm; The diameter Φ of the light guide channel is 4mm.

[0030] The end of the light guide 2 that is away from the light source 1 passes through the middle of the first support frame 30 and continues to extend away from the light source 1, with an extension distance L2 of 6mm. The height L3 of the first support frame 30 is 28mm.

[0031] The light guide 2 is made of acrylic.

[0032] The light guide 2 is perpendicular to the first support frame 30.

[0033] like Figure 1 , 6 As shown in 7, 10 and 15: A control axis device (red light therapy device) includes an interpupillary distance adjustment mechanism, a light transmission device, a support mechanism and a housing 5. The support mechanism is used to install and support the interpupillary distance adjustment mechanism and the light transmission device. The support mechanism includes a base 19, a support member 18 and a rotating assembly 23. The rotating assembly 23 includes a rotating shaft outer sleeve 25 and a rotating shaft inner sleeve 24. The rotating shaft outer sleeve 25 and the rotating shaft inner sleeve 24 are connected by gear meshing. The bottom end of the support member 18 is fastened to the base 19, and a rotating component 23 is installed on the top end of the support member 18. The rotating component 23 is used to adjust the up-and-down flipping movement of the outer shell 5 in the front-and-back direction so as to accommodate users of different heights. The interpupillary distance adjustment mechanism includes an adjustment component 6 and a limiting component 7. The adjustment component 6 includes an adjustment wheel 8 and a transmission component 9. The adjustment wheel 8 is connected to the transmission component 9. The transmission component 9 is integrally formed with the third support frame 32, or the transmission component 9 is fastened to the third support frame 32. like Figure 9-10 As shown: The limiting component 7 includes a limiting cavity 10, which is used to limit and guide the movement of the transmission component 9; like Figure 1-6As shown: The outer shell 5 is used to encapsulate the interpupillary distance adjustment mechanism and the light transmission device. The outer shell 5 is connected to the rotating assembly 23. The inner sleeve 24 of the rotating shaft of the rotating assembly 23 is connected to the outer shell 5. The outer sleeve 25 of the rotating shaft of the rotating assembly 23 is connected to the support member 18. The base 19 is provided with a display screen 20, an NFC module 22 and a motherboard 21.

[0034] like Figure 7-13 As shown: The adjusting wheel 8 drives the transmission component 9 to move under the guidance of the limiting cavity 10, thereby driving the corresponding second support frame 31 to move, so that the corresponding light guide component 2 moves with the third support frame 32; like Figure 7-8 As shown: The limiting component 7 further includes at least one limiting member 11; the limiting member 11 moves within the limiting cavity 10, and the limiting member 11 is integrally formed with the transmission member 9, or the limiting member 11 is fastened to the transmission member 9. The third support frame 32 is used in conjunction with the limiting member 11 (the limiting member 11 is divided into two types, namely the limiting member 11-1 and the limiting member 11-2. The limiting member 11-1 includes two strip-shaped limiting structures or at least one sheet-shaped structure). The transmission member 9 connects the third support frame 32-1 with the limiting member 11-1, and the limiting member 11-2 is directly connected to the third support frame 32-2. Four third support frames 32 are used. Two third support frames 32-1 are located at the front end of the light guide 2, and two third support frames 32-2 are located at the rear end of the light guide 2, respectively set at both ends of the light guide 2.

[0035] like Figure 7-8 As shown: The limiting component 7 further includes at least one limiting frame 12 and at least one limiting component 13. A limiting cavity 10 is provided on the limiting frame 12. There are four limiting components 11, namely two limiting components 11-1 and two limiting components 11-2. The limiting frame 12 and the limiting components 11 are used in conjunction. Different limiting components 11 and different limiting frames 12 have different cooperation relationships. That is, the limiting component 11-1 is used in conjunction with the limiting frame 12-1 to participate in the adjustment process of the light guide 2. The limiting component 11-2 is used in conjunction with the limiting frame 12-2 for auxiliary limiting. There are two limiting frames 12, namely one limiting frame 12-1 located at the front end of the light guide 2 and one limiting frame 12-2 located at the rear end of the light guide 2.

[0036] like Figure 7-11 As shown: The limiting frame 12 and the limiting component 13 are integrally formed, or the limiting frame 12 and the limiting component 13 are fastened together. The limiting cavity 10 limits and guides the movement of the transmission component 9 by limiting and guiding the movement of the limiting and guiding component 11, so as to limit and guide the movement of the light guide component 2.

[0037] like Figure 9-11As shown: The transmission component 9 is provided with a first gear tooth 14, and the adjusting wheel 8 is provided with a second gear tooth 15. The first gear tooth 14 on the transmission component 9 and the second gear tooth 15 on the adjusting wheel 8 are meshed and connected. The transmission component 9 is configured as a toothed condition, which meshes with the adjusting wheel 8.

[0038] The adjustment assembly 6 also includes a connecting shaft 16, on which an adjustment wheel 8 is sleeved, and on which an operating part 1714 is provided; The adjusting wheel 8 rotates synchronously with the connecting shaft 16; The connecting shaft 16 is installed inside the limiting component 13, and the connecting shaft 16 is rotatably connected to the limiting component 13.

[0039] The limiting cavity 10 is designed as a through groove with a quadrilateral cross-section.

[0040] like Figure 14 As shown: The light source 1 includes a light source 27, a light emitter 28, and a circuit board 29. The light source 27 is installed in the light emitter 28, and the light emitter 28 is installed on the circuit board 29. The circuit board 29 is disposed on the light guide 2, so that the light source 27 is located in the light guide channel, and the light emitter 28 can limit, protect and dissipate heat for the light source 27.

[0041] It should be noted that the light source 1 mentioned above is a light-emitting diode. Here, it can be understood that the light source 27 is a light-emitting diode. The structure of the light source 1 has not been shown in detail before, so the name will be explained in more detail here.

[0042] like Figure 3-4 As shown: The light source 1 is mounted on the light source mounting component 26. The light source mounting component 26 is connected to the second support frame 31. That is, the light guide 2 and the light source 1 are connected through the light source mounting component 26, which increases the stability of the connection between the two. The light source mounting component 26 is slidably connected to the inner side wall of the outer shell 5, which can improve the stability during movement. Specifically, the second support frame 31 is sleeved inside the light source mounting component 26, and the light source 1 is installed inside the light source mounting component 26. During installation, the concentricity of the light source 1 and the light guide 2 is ensured.

[0043] like Figure 6 and 15 As shown: It includes a light guide sleeve 33, a transparent plate 34, and a soft rubber sleeve 35 for the light guide component 2. The light guide sleeve 33 is installed at one end of the light guide component 2, and the light guide sleeve 33 is connected to the soft rubber sleeve 35 for the light guide component 2. A transparent plate 34 is provided between the soft rubber sleeve 35 for the light guide component 2 and the light guide sleeve 33.

[0044] Working principle: The light source 1 (light-emitting diode) emits a scattered light beam. After passing through the light guide channel, the scattered light beam forms a qualified light spot that enters the eye. Then, the rotating component 23 is adjusted so that the user can receive a clear light spot. According to the user's own situation, the user can rotate the adjusting wheel 8 to drive the transmission component 9 to move. Since the limiting component 11 is connected to the transmission component 9, and the limiting cavity 10 has a limiting and guiding function for the limiting component 11, the limiting cavity 10 also has a limiting and guiding function for the transmission component 9. The transmission component 9 is tightly connected to the third support frame 32. Therefore, by adjusting the wheel 5, the transmission component 9 is driven to move in the preset direction and range in the limiting cavity 10, thereby driving the light guide component 2 to move accordingly, and thus adjusting the interpupillary distance.

[0045] Example 2: The difference between this example and Example 1 lies in the arrangement of the third support frame 32 and the limiting component 7. The adjusting wheel 8 drives the transmission component 9 to move under the guidance of the limiting cavity 10, thereby driving the corresponding third support frame 32 to move, so that the corresponding light guide 2 and light transmission device move with the third support frame 32. The third support frame 32 is used in conjunction with the limiting frame 12. The transmission component 9 connects the third support frame 32-1 with the limiting component 11-1. (The limiting component 11 is divided into two types, namely the limiting component 11-1 and the limiting component 11-2. The limiting component 11-1 includes two strip-shaped limiting structures or at least one sheet-shaped structure.) The third support frame 32 adopts one third support frame 32-1, which is set in the middle of the light guide 2.

[0046] The limiting component 7 further includes at least one limiting member 11; the limiting member 11 moves within the limiting cavity 10, and the limiting member 11 is integrally formed with the transmission member 9 or the limiting member 11 is fastened to the transmission member 9. The limiting component 7 also includes at least one limiting frame 12 and at least one limiting component 13. A limiting cavity 10 is provided on the limiting frame 12. The limiting component 11 is set as one limiting component 11-1. The limiting frame 12 and the limiting component 11 are used together. Different limiting components 11 and different limiting frames 12 have different cooperation relationships. That is, the limiting component 11-1 is used in conjunction with the limiting frame 12-1 to participate in the adjustment process of the light guide 2. The limiting frame 12 adopts one limiting frame 12-1. The limiting component 11-1, the limiting frame 12-1 and the third support frame 32-1 are only set on one light guide 2 and are set in the middle of the light guide 2. The limiting frame 12 and the limiting component 13 are integrally formed, or the limiting frame 12 and the limiting component 13 are fastened together. The limiting cavity 10 limits and guides the movement of the transmission component 9 by limiting and guiding the movement of the limiting and guiding component 11, so as to limit and guide the movement of the light guide component 2.

[0047] The connecting shaft 16 is installed inside the limiting component 13. The connecting shaft 16 and the limiting component 13 are integrally formed, or the connecting shaft 16 and the limiting component 13 are fastened together. The connecting shaft 16 is provided with a limiting part, which is used to limit the adjusting wheel 8 so as to realize the stable rotation of the adjusting wheel 8 around the connecting shaft 16.

[0048] Example 3: The difference between this example and Example 1 lies in the arrangement of the third support frame 32 and the limiting component 7. The adjusting wheel 8 drives the transmission component 9 to move under the guidance of the limiting cavity 10, thereby driving the corresponding light guide component 2 frame 1 to move, so that the corresponding light guide component 2 and the light transmission device move with the third support frame 32. The third support frame 32 is used in conjunction with the limiting component 11 (the limiting component 11 is divided into two types, namely the limiting component 11-1 and the limiting component 11-2. The limiting component 11-1 includes two strip-shaped limiting structures or at least one sheet-shaped structure). The third support frame 32-1 is connected to the limiting component 11-1 through the transmission component 9. Two third support frames 32 are used, that is, two third support frames 32-1 are respectively set on different light guide components 2 (or set on one third support frame 32-1 and one third support frame 32-2, the two third support frames 32 are set on the same light guide component 2, the frame 1-1 is set at the front end of the light guide component 2, and the third support frame 32-2 is set at the rear end of the light guide component 2). The limiting component 7 further includes at least one limiting frame 12 and at least one limiting component 13. A limiting cavity 10 is provided on the limiting frame 12. There are two limiting components 11, namely two limiting components 11-1 (or one limiting component 11-1 and one limiting component 11-2). The limiting frame 12 and the limiting component 11 are used in conjunction. Different limiting components 11 and different limiting frames 12 have different cooperation relationships. That is, the limiting component 11-1 is used in conjunction with the limiting frame 12-1 to participate in the adjustment process of the light guide 2 (the limiting component 11-2 is used in conjunction with the limiting frame 12-2 for auxiliary limiting). There is one limiting frame 12, namely one limiting frame 12-1 (or two limiting frames 12 are provided, one limiting frame 12-1 is provided at the front end of the light guide 2 and one limiting frame 12-2 is provided at the rear end of the light guide 2). The limiting frame 12 and the limiting component 13 are integrally formed or the limiting frame 12 and the limiting component 13 are fastened together. The limiting cavity 10 limits and guides the movement of the transmission component 9 by limiting and guiding the movement of the limiting and guiding component 11, so as to limit and guide the movement of the light guide component 2.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A light transmission device for an axis control instrument, characterized in that, include: Light source (1), which emits a diverging light beam; Light guide (2), the light guide (2) is set on a movable support frame, one end of which is connected to the light source, and the other end extends away from the light source (1) and extends to the outside of the support frame; The light guide (2) has a light guide channel inside. The divergent light beam emitted by the light source (1) enters the light guide channel and is transported by the light guide (2) to form an eye-viewing light spot.

2. The optical transmission device for an axis control instrument according to claim 1, characterized in that, The light source (1) is a light-emitting diode.

3. The optical transmission device for an axis control instrument according to claim 1 or 2, characterized in that, The light guide (2) is an optical fiber.

4. The optical transmission device for an axis control instrument according to claim 3, characterized in that, The length L1 of the light guide (2) between the support frame and the light source (1) is 30-250 mm, and the diameter Φ of the light guide channel is 1-10 mm.

5. The optical transmission device for an axis control instrument according to claim 4, characterized in that, The end of the light guide (2) away from the light source (1) passes through the middle of the support frame and continues to extend away from the light source (1) for a distance L2 of 1-10 mm. The height L3 of the support frame is 25-35 mm.

6. The optical transmission device for an axis control instrument according to claim 3, characterized in that, The cross-sectional shape of the light guide (2) is circular, triangular, quadrilateral, pentagonal or hexagonal.

7. The optical transmission device for an axis control instrument according to claim 3, characterized in that, The light guide (2) is made of acrylic, polycarbonate (PC), polystyrene (PS) or high-purity quartz glass.

8. A light transmission device for an axis control instrument according to claim 1, 2, 4, 5, 6 or 7, characterized in that, The light guide (2) is set perpendicular to the support frame.

9. An axis control device based on the optical transmission device according to any one of claims 1-8, characterized in that, It includes an interpupillary distance adjustment mechanism, a light transmission device, a support mechanism, and an outer shell (5); The interpupillary distance adjustment mechanism includes an adjustment component (6) and a limiting component (7). The adjustment component (6) includes an adjustment wheel (8) and a transmission component (9). The adjustment wheel (8) is connected to the transmission component (9). The transmission component (9) is integrally formed with the support frame or the transmission component (9) is fastened to the support frame. The limiting component (7) includes a limiting cavity (10), which is used to limit and guide the movement of the transmission component (9); The adjusting wheel (8) drives the transmission component (9) to move under the guidance of the limiting cavity (10), thereby driving the corresponding support frame to move, so as to realize the movement of the light transmission device; The support mechanism is connected to the outer shell (5) and is used to install the interpupillary distance adjustment mechanism and the light transmission device; The outer casing (5) is used to encapsulate the interpupillary distance adjustment mechanism and the light transmission device.

10. A shaft control device according to claim 9, characterized in that, The limiting component (7) further includes at least one limiting member (11), which moves within the limiting cavity (10). The limiting member (11) is integrally formed with the transmission member (9) or the limiting member (11) is fastened to the transmission member (9). The limiting assembly (7) further includes at least one limiting frame (12) and at least one limiting component (13), with a limiting cavity (10) provided on the limiting frame (12); The limiting frame (12) and the limiting component (13) are integrally formed or the limiting frame (12) and the limiting component (13) are fastened together.

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