Visual training device

Abstract

The utility model discloses a visual training device which comprises a light source, a connecting piece and a dimming device. The light source emits training light acting on pupils of a user; the light source is arranged at one end of the connecting piece; the dimming device is arranged on the connecting piece and is used for adjusting the throughput of the training light; wherein the light adjusting device comprises a polymer dispersed liquid crystal film arranged on a light path of the training light, the polymer dispersed liquid crystal film is connected with a control circuit, and the control circuit is used for adjusting voltage so as to control the light transmittance of the polymer dispersed liquid crystal film. According to the visual training device disclosed by the utility model, the light adjusting device is arranged, so that the intensity of the training light rays entering the human eyes can be adjusted. And secondly, the shooting assembly can obtain a clear human eye image, so that the dimming device can be adjusted more accurately. In addition, the visual training device is further provided with an optical power detection device, the intensity of training light can be obtained in time, and the dimming device is further made to be more accurate.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a vision training device. Background Art

[0002] With the gradual popularization of intelligent devices such as televisions, computers, and mobile phones, the incidence of refractive errors among adolescents has also shown an increasing trend year by year, among which myopia has the highest incidence. In order to alleviate these eye symptoms, some clinical medicine uses low-intensity laser timing irradiation to alleviate these vision problems. The existing technology cannot adjust the power of light, and different people have different degrees of adaptability to light, so it is difficult to adapt to a large range of users.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to provide a vision training device, which can adjust the intensity of light acting on human eyes and adapt to different human eyes, thereby expanding the applicable scope of the vision training device. Training light.

[0005] To achieve the above purpose, the utility model provides a vision training device, comprising: a light source, a connecting piece and a dimming device. The light source is used to emit training light acting on the user's pupil; one end of the connecting piece is provided with the light source; the dimming device is provided on the connecting piece and is used to adjust the amount of training light passing through;

[0006] The dimming device comprises a polymer dispersed liquid crystal film arranged on the optical path of the training light, the polymer dispersed liquid crystal film is connected to a control circuit, and the control circuit is used to adjust the voltage to control the transmittance of the polymer dispersed liquid crystal film.

[0007] In one or more embodiments, the control circuit is provided with a variable resistor for adjusting the voltage.

[0008] In one or more embodiments, PVB films are disposed on both sides of the polymer dispersed liquid crystal film.

[0009] In one or more embodiments, ITO glass is disposed on the PVB film, and the PVB film is sandwiched between the polymer dispersed liquid crystal film and the ITO glass.

[0010] In one or more embodiments, the vision training device further includes a shooting component, which includes: a housing, an illumination light source, a spectroscopic device, and a shooting unit. One side of the housing is connected to the other end of the connecting member; the illumination light source is disposed on the other side of the housing, and is used to emit illumination light to illuminate the eye; the spectroscopic device is disposed in the housing, and is used to reflect the eye image; the shooting unit is disposed on one side of the spectroscopic device and is connected to the housing, and is used to obtain the eye image reflected by the spectroscopic device.

[0011] In one or more embodiments, the vision training device further includes an optical power detection device disposed on the other side of the spectroscopic device, and the spectroscopic device is capable of reflecting part of the training light to the optical power detection device, and the optical power detection device is used to detect the intensity of the part of the training light reflected by the spectroscopic device.

[0012] In one or more embodiments, the light splitting device is a sheet, and the angle between the light splitting device and the center line of the connecting member is between 40° and 50°.

[0013] In one or more embodiments, the connecting member is a sight glass.

[0014] Compared with the prior art, the vision training device of the utility model is provided with a dimming device capable of adjusting the intensity of the training light incident on the human eye. Secondly, the shooting component can obtain a clear image of the human eye so that the dimming device can be adjusted more accurately. In addition, the vision training device is also provided with an optical power detection device capable of timely obtaining the intensity of the training light, further making the dimming device more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a vision training device according to one embodiment of the utility model.

[0016] Figure 2 It is an exploded view of a vision training device according to one embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of a dimming device according to an embodiment of the utility model in a light-proof state.

[0018] Figure 4 It is a schematic diagram of a dimming device in a light-transmitting state according to an embodiment of the utility model.

[0019] Figure 5 is a schematic diagram of a control circuit according to an embodiment of the present utility model.

[0020] Description of main reference numerals:

[0021] 1-light source, 2-connecting piece, 3-dimming device, 31-polymer dispersed liquid crystal film, 32-PVB film, 33-ITO glass, 4-shooting component, 41-housing, 42-illumination light source, 43-shooting unit, 44-spectrometric device, 5-optical power detection device. DETAILED DESCRIPTION

[0022] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0023] Unless otherwise expressly indicated, throughout the specification and claims, the term "comprise" or its variations such as "include" or "including" etc. will be understood to include the stated elements or components, without excluding other elements or other components. In the description of the embodiments of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0024] like Figures 1 to 5 As shown, a vision training device according to one embodiment of the utility model includes: a light source 1, a connector 2 and a dimming device 3. The light source 1 is used to emit training light acting on the user's pupil; the light source 1 is provided at one end of the connector 2. The dimming device 3 is provided on the connector 2, and is used to adjust the amount of the training light passing through; wherein the dimming device 3 includes a polymer dispersed liquid crystal film provided on the optical path of the training light, and the polymer dispersed liquid crystal film is connected to a control circuit, and the control circuit is used to adjust the voltage to control the transmittance of the polymer dispersed liquid crystal film. Under the control of the control circuit, the polymer dispersed liquid crystal film 31 can adjust the transmittance according to the actual situation of the object to be treated, thereby ensuring that the power of the training light entering the human eye is not too large or too small, and the treatment effect is guaranteed without harming the human eye.

[0025] In one embodiment, a variable resistor R1 is provided on the control circuit, and the variable resistor R1 adjusts the resistance of the circuit to change the voltage V2 of the regulating device. Figure 3 , Figure 4 and Figure 5As shown, when the circuit resistance R1 becomes smaller and the voltage V2 becomes larger, the molecular arrangement in the polymer dispersed liquid crystal film 31 gradually tends to a regular state, and the transmittance of the polymer dispersed liquid crystal film 31 becomes larger; when the circuit resistance R1 becomes larger and the voltage V2 becomes smaller, the molecular arrangement in the polymer dispersed liquid crystal film 31 gradually tends to a regular state, and the transmittance of the polymer dispersed liquid crystal film 31 becomes smaller.

[0026] In order to protect the polymer dispersed liquid crystal film 31 and not affect the transmittance of the polymer dispersed liquid crystal film 31, PVB films 32 are provided on both sides of the polymer dispersed liquid crystal film 31. PVB is polyvinyl butyral. ITO glass 33 is also provided on the PVB film 32 to further protect the polymer dispersed liquid crystal film 31.

[0027] In one embodiment, the shooting component 4 is mainly used to shoot the pupil of the patient to determine the size of the pupil, so as to select the appropriate power of the training light according to the size of the pupil. Specifically, the shooting component 4 includes: a shell 41, an illumination light source 42, a shooting unit 43 and a spectroscopic device 44. One side of the shell 41 is connected to the other end of the connector 2. The illumination light source 42 is disposed on the other side of the shell 41, and is used to emit illumination light to illuminate the eye. The spectroscopic device 44 is disposed in the shell 41, and is used to reflect the eye image. The shooting unit 43 is disposed on one side of the spectroscopic device 44 and is connected to the shell 41, and is used to obtain the eye image reflected by the spectroscopic device 44.

[0028] like Figure 2 As shown, in order to prevent the training light incident on the human eye from being too strong, the vision training device also includes an optical power detection device 5 arranged on the other side of the spectroscopic device 44. The spectroscopic device 44 can reflect part of the training light to the optical power detection device 5, and the optical power detection device 5 is used to detect the intensity of the part of the training light reflected by the spectroscopic device 44. Specifically, the optical power detection device 5 is arranged below the housing 41. The optical power detection device 5 and the shooting unit 43 are respectively arranged on the upper and lower sides of the housing 41. The spectroscopic device 44 is arranged between the optical power detection device 5 and the shooting unit 43, and the spectroscopic device 44 can disperse the training light to the optical power detection device 5 and the shooting unit 43. The dispersed training light can be detected by the optical power detection device 5, and the optical power detection device 5 obtains the power of the training light and adjusts the power of the training light through the dimming device 3 according to the obtained result. Here, a processing chip (not shown) is arranged between the optical power detection device 5 and the dimming device 3, and the processing chip can receive and process the signal of the optical power detection device 5, and control the dimming device 3 by feeding back to the control circuit. Among them, the optical power detection device 5, the dimming device 3, the processing chip and the control circuit are electrically connected or communicated with each other. The electrical connection or communication connection here is a conventional technical means in the field and will not be repeated here.

[0029] The light splitting device 44 can also disperse the light from the illumination light source 42 to the human eye to the shooting unit 43. The shooting unit 43 can obtain more light and take a clearer photo of the human eye. The operator can also adjust the power of the training light more accurately according to the photo of the human eye.

[0030] Therefore, an illumination light source 42 is provided on a side of the housing 41 close to the human eye. The illumination light source 42 is used to illuminate the human eye to ensure that the shooting unit 43 can obtain a clear photo of the human eye. Specifically, the illumination light source is an infrared light source.

[0031] In one embodiment, the light splitter 44 is a sheet, and both sides of the light splitter 44 are coated with a specific coating or material, such as a light splitter film. The angle between the light splitter 44 and the center line of the connecting member 2 is between 40° and 50°, so that the training light can better pass through the light splitter 44 and enter the human eye and achieve a better light splitting effect.

[0032] In one embodiment, the connecting member 2 is a sight tube. In addition to being a sight tube, the connecting member 2 can also be a connecting portion provided on a frame or a housing used in conjunction with the vision training device.

[0033] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A vision training device, characterized in that: include: A light source, used for emitting training light to act on the user's pupil; A connecting piece, one end of which is provided with the light source; and A dimming device, disposed on the connecting member, for adjusting the amount of training light passing through; The dimming device comprises a polymer dispersed liquid crystal film arranged on the optical path of the training light, the polymer dispersed liquid crystal film is connected to a control circuit, and the control circuit is used to adjust the voltage to control the transmittance of the polymer dispersed liquid crystal film.

2. The vision training device according to claim 1, characterized in that: The control circuit is provided with a variable resistor for adjusting the voltage.

3. The vision training device according to claim 1, characterized in that: PVB films are arranged on both sides of the polymer dispersed liquid crystal film.

4. The vision training device according to claim 3, characterized in that: ITO glass is arranged on the PVB film, and the PVB film is sandwiched between the polymer dispersed liquid crystal film and the ITO glass.

5. The vision training device according to claim 1, characterized in that: It also includes a shooting component, which includes: a housing, one side of which is connected to the other end of the connecting member; An illumination light source, disposed on the other side of the housing, for emitting illumination light to illuminate the eyes; A light splitting device, disposed in the housing, for reflecting an eye image; and The shooting unit is arranged at one side of the spectroscopic device and connected to the housing, and is used for acquiring the eye image reflected by the spectroscopic device.

6. The vision training device according to claim 5, characterized in that: It also includes an optical power detection device arranged on the other side of the optical splitter. The optical splitter can reflect part of the training light to the optical power detection device, and the optical power detection device is used to detect the intensity of the part of the training light reflected by the optical splitter.

7. The vision training device according to claim 6, characterized in that: The light splitting device is a sheet, and the angle between the light splitting device and the center line of the connecting member is between 40° and 50°.

8. The vision training device according to claim 1, characterized in that: The connecting piece is a sight tube.

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