KR102541332B1 - Vision training device that trains the eye muscles based on the user's vision characteristics - Google Patents

Abstract

An object of the present invention is to provide a vision training apparatus having relatively high training efficiency for the ciliary muscles. A vision training device according to the present invention for achieving the above object includes a housing having at least one eyepiece corresponding to a user's eyeball; a display for displaying a target image in front of the user's visual direction; a lens disposed between the eyepiece and the display unit; a moving unit capable of moving at least one of the display and the lens along the viewing direction; and a controller configured to set at least one training period within a movement range of the display and the lens and control the moving unit to move at least one of the display and the lens within the training period.

Description

Vision training device that trains the eye muscles based on the user's vision characteristics

The present invention relates to a vision training device for training eye muscles based on a user's eyesight characteristics.

Vision is highly related to the ciliary muscle among several eye muscles. Therefore, by training to contract or relax this ciliary muscle, it is possible to improve or maintain visual acuity. However, since human ciliary muscles have different abilities for each individual, it is effective to conduct customized vision training corresponding to each person's eyesight.

However, conventional vision training apparatuses simply change the focal length of the user's eyes without considering each person's visual acuity characteristics to train the ciliary muscles. So, depending on the user, training efficiency was low or training adaptation was difficult.

An object of the present invention is to provide a vision training apparatus having relatively high training efficiency for the ciliary muscles.

A vision training device according to the present invention for achieving the above object includes a housing having at least one eyepiece corresponding to a user's eyeball; a display for displaying a target image in front of the user's visual direction; a lens disposed between the eyepiece and the display unit; a moving unit capable of moving at least one of the display and the lens along the viewing direction; and a controller configured to set at least one training period within a movement range of the display and the lens and control the moving unit to move at least one of the display and the lens within the training period.

Here, it is preferable that the control unit sets a clear viewing range section corresponding to a predetermined adjustment near point position and an adjustment origin position within the movement range, and the training section includes the clear viewing range section.

It is preferable to further include a user input unit that receives a user input signal from a user, and the position of the control near point and the position of the control origin are set through the input of the user input signal.

In addition, the sensor module may further include a sensor module for generating a visibility change confirmation signal by checking whether the user's eyeball changes from an emmetropic state to a non-emmetropic state or a change from a non-emetropic state to an emmetropic state, wherein the control unit changes the visibility It is preferable to set the location of the control near point and the location of the control origin based on the confirmation signal.

And the control unit measures the continuous or intermittent accommodative adaptation speed through the user input unit or sensor module within the clear viewing range, and determines the training speed of the display and the lens within the training period by reflecting the measured speed it is desirable

In addition, the control unit sets predetermined proximity control adaptive threshold positions and remote control adaptive threshold positions within the clear field of view range, and the training section is a high level corresponding to a gap between the proximity control adaptive critical position and the remote control adaptive position. It is preferable to include at least some sections of the control response section.

And it is preferable to further include at least one second lens disposed between the lens and the display or between the lens and the eyepiece along the viewing direction.

In addition, the moving unit includes a second moving unit for moving the second lens, and the second moving unit is preferably any one of a piezo actuator, a VCM actuator, and an encoder actuator.

The moving unit may selectively move at least one of the lens and the second lens.

In addition, it is preferable that the size of the target image changes according to the location of the display.

The eyesight training apparatus according to the present invention has a relatively high efficiency in training the ciliary muscles in consideration of the eyesight characteristics of each user, so the eyesight recovery effect is excellent.

1 is a perspective view showing a vision training device according to the present invention,
2 is a control block diagram of a vision training device according to the present invention;
3 is an explanatory diagram showing various methods of measuring the position of the adjustment near point and the position of the adjustment origin using the vision training device of the present invention;
4 is a reference diagram for explaining the measurement and training process according to the display movement method of the present invention;
5 is a flowchart showing a process of measuring the position of the control near point and the position of the control origin according to FIG. 3 (A);
6 is a flow chart showing a training mode process using the vision training device of the present invention,
7 is a flowchart showing a training mode process using a vision training device according to another embodiment of the present invention;
8 is a reference diagram for explaining a training method according to the embodiment of FIG. 7;
9 is a reference diagram for explaining the training process according to the movement of the lens,
10 is an explanatory view schematically showing a vision training device having a plurality of lenses.

1 is a perspective view showing a vision training device according to the present invention. As can be seen in Figure 1, this sight training device has a housing 110 indicated by a virtual line, and a pair of sight training units 120 disposed side by side inside the housing 110 side by side. The housing 110 has a shielding plate 122 disposed between the pair of sight training units 120 to block the views of the left and right eyes from each other. Here, each sight training unit 120 may replace the cover plate 122 with an individual housing structure.

The housing 110 has a pair of eyepieces 124 having eyepieces through which the inside of the housing 110 can be seen corresponding to both eyes of the user. Here, the pair of eyepieces 124 may be connected to each other without being separated and provided in the form of one through hole. A user input unit 160 capable of receiving a signal from a user is installed on an upper surface of the housing 110 . The user may input necessary information or select training conditions and training modes through the user input unit 160 . The housing 110 may include a strap made of an elastic material or a head fixing device that helps to be fixed to the user's face.

The sight training unit 120 has a display 130 and a lens 140 disposed to face each other along the viewing direction. The vision training unit 120 has a lens holder 142 for supporting the lens 140. Each lens holder 142 is disposed to correspond to the eyepiece 124 . A user may view the display 130 through the lens 140 supported by the lens holder 142 .

The display 130 displays target images for vision training. The display 130 may be an electronic display device such as LCD or LED or a simple display panel such as paper or plastic plate. The target image may be a static image or moving image such as a landscape, a figure, a dot, or a geometric shape.

The lens 140 is mounted on the lens holder 142 and disposed between the eyepiece 124 and the display 130 . A user may view a target image displayed on the display 130 through the eyepiece 124 and the lens 140 . Here, the lens 140 is preferably a convex lens. The convex lens can change the focal length between the user's eyeball and the target image so that the user can recognize the image as being located farther than the actual distance, thereby expanding the perspective of the image. However, the lens 140 is not limited to a convex lens and may be adopted as various types of lenses such as polarized lenses and color lenses. In case of adopting a polarized lens or a color lens, the user may filter a part of the target image.

The display 130 and the lens holder 142 are interconnected by the moving unit 150 . The moving unit 150 includes a lead screw 151, a moving body 152, and a driving motor unit 153. Here, the movable body 152 is coupled to the display 130 side and the driving motor unit 153 is coupled to the lens holder 142 side, or vice versa. The lead screw 151 connects the driving motor 153 and the moving body 152 .

With this configuration, when the drive motor 153 is driven, the lead screw 151 rotates and the display 130 and the lens 140 move relative to each other or move apart along the viewing direction. That is, when the drive motor 153 is driven while the display 130 is fixed to the housing 110, the lens 140 moves relative to the display 130, and the lens holder 142 moves relative to the housing 110. When the drive motor 153 is driven in a fixed state, the display 130 moves relative to the lens 140 . Meanwhile, the display 130 and the lens holder 142 may be moved relative to the housing 110 so that the display 130 and the lens 140 can move individually at the same time. In addition, a manual driving method by user's manipulation may be adopted.

2 is a control block diagram of a vision training device according to the present invention. Referring to FIG. 2 together with FIG. 1 , the vision training apparatus includes a control unit 190 that receives information input from a user input unit 160 having a plurality of user input buttons 161 to 166 . Each button of the user input unit 160 may include a power button, a user selection button, a forward movement button, a backward movement button, a measurement mode button, and a training mode button. The user input unit 160 may be replaced with a wired or wireless remote controller, or may be implemented in a voice recognition method or an eye tracking method using a gyro sensor or an image recognition sensor.

This vision training device includes a communication unit 170 that enables wired or wireless communication with external devices such as smart phones, tablets, PCs, user servers, and the like. The communication unit 170 may transmit data generated by the vision training device to an external device or receive data from the external device.

The vision training apparatus includes a memory unit 180 that stores user information, diopter conversion data, vision data, training data, and various data necessary for operation of the vision training apparatus. The diopter conversion data refers to data obtained by converting each position of the display 130 and the lens 140 into a diopter value within a movement range of the display 130 and the lens 140 .

The controller 190 may individually control at least one of the pair of displays 130 and lenses 140 . Due to this, the vision training device according to the present invention enables sight training according to a free selection for the left eye, right eye, or both eyes.

3 is an explanatory diagram showing various methods of measuring the control near point position (P5) and the control origin position (P6) using the vision training device of the present invention, and FIG. 4 is a measurement and training process according to the display movement method of the present invention. , and FIG. 5 is a flowchart showing a process of measuring the control near point position P5 and the control origin position P6 according to FIG. 3 (A). Referring to FIG. 5 together with FIGS. 3 and 4, the control near point position P5 and the control origin position P6 according to the present invention remotely control the display 130 or the lens 140 as shown in FIG. 3(A). It can be measured while moving from the position (P2) to the proximity position (P1).

First, the user presses the power input button of the user input unit 160 to apply power. After wearing the vision training device, the user presses the measurement mode selection button of the user input unit 160 to select a measurement mode (S110).

When the measurement mode is selected by the user, the controller 190 controls the drive motor 153 to move the display 130 or the lens 140 to the remote location P2 (S120). The remote position P2 is a position farthest from the eyepiece 124 in the movement range MR of the display 130 or the lens 140, but may be adjusted within a predetermined range.

The controller 190 controls the driving motor 153 to continuously or intermittently move the display 130 or the lens 140 toward the eyepiece 124 from the remote location P2 (S130). At this time, the moving speed in the case of continuous and the maintenance speed in the case of intermittent can be adjusted to the set speed.

The control unit 190 checks whether there is an adjustment adaptation confirmation input from the user input unit 160 (S140). The accommodative confirmation input is a signal transmitted by the user to the control unit 190 through the user input unit 160 when the user's eyeballs change from the non-emmetropic state to the emmetropic state. When the display 130 or the lens 140 moves, the user inputs the user input unit 160 at the moment when the target image TI is seen clearly after being blurred, that is, at the moment when the user's visibility of the target image TI changes. By pressing the user selection button, the adjustment adaptation confirmation signal is input.

When the control unit 190 receives the adjustment adaptation confirmation signal from the user input unit 160, the threshold position of the display 130 or the lens 140 at the time when the adjustment adaptation confirmation signal is input is set as the adjustment origin position P6. Save (S150).

Thereafter, the controller 190 controls the drive motor 153 to continuously or intermittently move the display 130 or the lens 140 toward the eyepiece 124 (S160). At this time, it is possible to adjust the moving speed in the case of continuous and the waiting time in the stopped state in the case of intermittent.

The control unit 190 checks whether there is an adjustment adaptation confirmation input from the user input unit 160 (S170). The accommodative adaptation confirmation input at this time is a signal transmitted by the user to the control unit 190 through the user input unit 160 when the user's eyeballs change from the emmetropic state to the non-emmetropic state. As the display 130 or the lens 140 moves, the user uses the user input unit 160 at the moment when the target image TI looks blurry from clear, that is, at the moment when the user's visibility of the target image TI changes. By pressing the selection button, the adjustment adaptation confirmation signal is input.

When the control unit 190 receives the adjustment adaptation confirmation signal from the user input unit 160, the threshold position of the display 130 or the lens 140 at the time when the adjustment adaptation confirmation input signal is input is set as the adjustment near point position (P5). Save as (S180). The above-mentioned control origin position (P6) and control near point position (P5) can be individually measured.

The control origin position P6 and the control near position P5 according to the present invention can be measured in various ways other than the method of approaching and moving from the above-described remote position P2 to the proximity position P1.

Meanwhile, the control near point position P5 and the control origin position P6 according to the present invention move the display 130 or the lens 140 from the proximity position P1 to the remote position P2 as shown in FIG. 3(B). You can measure while doing it.

The controller 190 controls the driving motor 153 to move the display 130 or the lens 140 to the proximity position P1. The proximity position P1 is preferably a position closest to the eyepiece 124 in the movement range of the display 130 or a position spaced apart from the eyepiece 124 by a predetermined distance.

The controller 190 moves the display 130 or lens 140 to the proximity position P1 and then controls the drive motor 153 to move the display 130 or lens 140 from the eyepiece 124 to a remote position ( It moves continuously or intermittently in the direction of P2). At this time, the moving speed in the case of continuous and the waiting time in the case of intermittent can be adjusted.

The control unit 190 checks whether an adjustment adaptation confirmation signal is input from the user input unit 160 . When the display 130 or the lens 140 moves, the user inputs the user input unit 160 at the moment when the target image TI is seen clearly after being blurred, that is, at the moment when the user's visibility of the target image TI changes. By pressing the user selection button, the adjustment adaptation confirmation signal is input. The control unit 190 stores the position of the display 130 or the lens 140 as the adjustment near point position P5 at the time when the adjustment adaptation confirmation signal is input from the user input unit 160 .

Subsequently, the controller 190 controls the drive motor 153 to continuously or intermittently move the display 130 or the lens 140 in the direction of the remote position P2. At this time, it is possible to adjust the moving speed in the case of continuous and the waiting time in the case of intermittent.

The control unit 190 checks whether an adjustment adaptation confirmation signal is input from the user input unit 160 . As the display 130 or the lens 140 moves, the user uses the user input unit 160 at the moment when the target image TI looks blurry from clear, that is, at the moment when the user's visibility of the target image TI changes. By pressing the selection button, the adjustment adaptation confirmation signal is input. When receiving an adjustment adaptation confirmation signal from the user input unit 160, the control unit 190 stores the position of the display 130 or the lens 140 at the time when this signal is input as the adjustment origin position P6. The control near point position (P5) or the control origin position (P6) can be measured not continuously but either one of the two.

The control near point position (P5) and the control origin position (P6) according to the present invention are the display 130 or lens 140 based on the user-customized position of the display 130 or lens 140 as shown in FIG. 3 (C). It can be measured while moving to the proximity position (P1) or remote position (P2).

The user input unit ( 160), when moving the display 130 or the lens 140 toward the eyepiece 124 and transitioning from the emmetropic state to the non-emmetropic state based on the user-customized position input from the user input unit, the control near point The adjustment origin position P6 may be determined while determining the position P5 or moving in the opposite direction.

The control near point position P5 and the control origin position P6 according to the present invention are adjusted while moving the display 130 or the lens 140 from the remote position P2 to the near position P1 as shown in FIG. 3 (D). The near point position (P5) is determined, and the adjustment origin position (P6) can be determined while continuously moving from the proximity position (P1) to the remote position (P2).

When the display 130 or the lens 140 approaches and moves from the remote position P2 to the near position P1, a transition from the non-emmetropic state to the emmetropic state and the transition from the emmetropic state to the non-emmetropic state occur. Here, in the method shown in FIG. 3(D), when the emmetropic state is transitioned to the non-emetropic state, the accommodation near point position P5 is determined based on a signal input from the user input unit.

Also, when the display 130 or the lens 140 is moved from the proximity position P1 to the remote position P2, a transition from the non-emetropic state to the emmetropic state and the transition from the emmetropic state to the non-emmetropic state occur. . Here, in the method shown in FIG. 3 (D), the adjustment origin position P6 is determined based on a signal input from the user input unit when transitioning from the emmetropic state to the non-emmetropic state. At this time, it is preferable to select the control near point position P5 and the control origin position P6 that converge while repeatedly measuring the moving speed of the display 130 or the lens 140 gradually slowly.

The control near point position P5 and the control origin position P6 according to the present invention can be determined by various methods other than the above four methods. For example, measurement may be performed while continuously moving the display 130 or the lens 140 from the remote position P2 to the proximity position P1 or from the proximity position P1 to the remote position P2. Here, when the speed at which the display 130 or the lens 140 moves is different, the positions of the control near point position P5 and the control origin position P6 may be measured differently. The faster the movement speed of the display 130 or the lens 140 is, the narrower the width between the control near point position P5 and the control origin point P6 is measured, and the slower the movement speed, the control near point position P5 and the control origin The width between positions P6 is measured as wide.

And, as described above, an appropriate one can be selected from among the plurality of control near point positions P5 and control origin positions P6 measured in various ways. For example, the adjustment near point position P5 can be determined by the method described in FIG. 3(B) and the adjustment origin position P6 can be determined by the method described in FIG. 3(A).

The positions of each control near point position P5 and control origin position P6 measured in (A) to (D) of FIG. 3 may be slightly different from each other. At this time, the control near point position (P5) is preferably the control near point position (P5) measured in FIG. 3 (B), and the control origin position (P6) is preferably the control origin position (P6) measured in FIG. 3 (A). However, the adjustment near point position P5 and the adjustment origin position P6 measured in FIG. 3(C) or FIG. 3(D) can be selected.

In order to reliably determine the control near point position (P5) and the control origin position (P6), the user repeatedly performs the above-described measurement process and averages the results to determine the control near point position (P5) and the control origin position (P6). It is desirable to do

The vision training apparatus according to the embodiment of the present invention can convert information determined by various methods of measuring the above-described adjustment near point position P5 and adjustment origin position P6 into visibility threshold information unique to each user. The visibility threshold information is set based on the values of the above-described control near point position (P5) and control origin position (P6), and either the position value is set as it is or the distance of the display 130 or the lens 140 from the reference position. It can be expressed as a value or as a diopter equivalent at that location. The location information of the control near point and the control origin is a factor related to the user's control power and can be used as an important parameter for evaluating the user's eyesight. In addition, by identifying the user's visual acuity characteristics through this measurement mode and providing user-customized visual acuity training in consideration of the identified visual acuity characteristics, the effect of visual acuity improvement can be maximized.

On the other hand, the present vision training device may include a sensor module that outputs infrared light or light toward the user's eyeball and receives the infrared light or light reflected from the eyeball to determine whether the user's eyeball is in an emmetropic state or a non-emetropic state. can The sensor module repeatedly checks whether the visibility of the user's eyes changes at each set period. That is, when it is determined that the user's eyeball changes from the emmetropic state to the non-emmetropic state and it is determined that the user's eyeball changes from the emmetropic state to the emmetropic state and it is determined that the eyeball changes from the non-emmetropic state to the emmetropic state, the controller ( 190) may transmit a visibility change confirmation signal. The control unit 190 sets the adjustment near point position P5 and the adjustment origin position P6 based on the visibility change confirmation signal.

The sensor module may use the same mechanism as the inspection principle of an automatic refraction inspection machine. That is, the sensor module calculates the focal length of the light output unit for outputting infrared rays or light toward the user's eyeball, the light detection unit for detecting the reflected light reflected from the user's eyeball, and the detected reflected light, and uses this to calculate the output toward the eyeball. It includes a refraction confirmation unit that calculates a location where infrared light or light is focused on the eyeball.

The controller 190 sets the clear viewing area AR based on the control near point position P5 and the control origin position P6 determined through the measurement mode. The clear field of view section AR corresponds to an area between the control near point position P5 and the control origin position P6. The sections NAR1 and NAR2 outside the clear viewing area AR within the movement range MR of the display 130 or the lens 140 are the unclear viewing area areas.

6 is a flow chart showing a training mode process using the vision training apparatus of the present invention. After applying power to the vision training device by pressing the power input button of the user input unit 160, the user wears the vision training device and selects a training mode by pressing the training mode selection button of the user input unit 160 (S210).

When a training mode is selected by the user, the controller 190 sets at least one training section within the movement range MR of the display 130 (S220). It is effective to improve visual acuity if the training section includes the clear vision section (AR). Here, the control unit 190 may further include at least some sections of the unclear vision section sections NAR1 and NAR2, including the clear view section section AR, within the movement range MR to set the training section as a training section.

Within the training section, the display 130 or the lens 140 continuously moves through the set training section or by a predetermined separation distance, and then the intermittent moving operation of waiting for the set waiting time is repeatedly performed (S230). At this time, when the speed at which the display 130 or the lens 140 moves and the waiting time after the movement are set in consideration of the eyesight characteristics of individual users, vision improvement through sight training can be achieved more effectively.

7 is a sequence diagram showing a training mode process using a vision training device according to another embodiment of the present invention, and FIG. 8 is a reference diagram for explaining a training method according to the embodiment of FIG. 7 . Referring to these drawings, in order to set the continuous movement speed and the intermittent waiting time by reflecting the visual acuity characteristics of each user, first, the controller 190 controls the display 130 or the lens 140 so that the display 130 or the lens (140) is positioned at any one measurement position among a plurality of measurement positions within the training section (S310). For convenience of description, it is assumed that the display 130 or the lens 140 moves from the first measurement position MP1 to the second measurement position MP2.

The control unit 190 checks whether an adjustment adaptation confirmation signal is input through the user input unit 160 or the sensor module 200 (S320). The accommodative confirmation input is a signal indicating that the target image recognized by the user has become clearer or that the user's eyes have become emmetropic.

The user presses the user input unit 160 at the moment when the target image becomes clear at the second measurement position MP2, and the adjustment adaptation confirmation input signal is input. When the input is received through the sensor module 200, the sensor module 200 repeatedly checks the emmetropia state of the user's eyeballs at set intervals, and if the user's eyeballs are in the emmetropia state, the control unit 190 receives an accommodative adaptation confirmation input signal. send

When the adjustment adaptation confirmation signal is input, the control unit 190 stores the adaptation time for the corresponding measurement position MP2 (S330). Here, the accommodative adaptation time means the time from when the display 130 or the lens 140 moves to the second measurement position MP2 until an accommodative adaptation confirmation input is input. These accommodative adaptation times have different values depending on the visual acuity characteristics of the user. In the vision training device according to the present invention, the position of the display 130 or the lens 140 may be converted into a predetermined diopter value, and the diopter converted value may be provided to the user.

Measurement of the adaptation time may be performed for all of the plurality of measurement positions MP1 to MP10, respectively. It is preferable to measure the adjustment adaptation time for each measurement position separately according to the moving direction of the display 130 or the lens 140. This is because the adjustment adaptation time may be different depending on the position of the display 130 or the lens 140 located before recognizing the target image, even if the adjustment adaptation time is for the same measurement position.

When the accommodative adaptation time for each of the plurality of measurement positions is determined, the controller 190 reflects the determined accommodative adaptation time to select one of the display 130 for each position or the intermittent holding time of the lens 140 or the continuous moving speed V. One is set (S340). The intermittent holding time is the time the display 130 or the lens 140 stays at the corresponding position, and the continuous moving speed V means the speed of the display 130 or the lens 140 passing the corresponding position.

After the intermittent holding time or the continuous moving speed (V) is determined, the controller 190 displays the display 130 or the lens 140 to stay at the corresponding position for the set holding time or pass the corresponding position at the set moving speed ( 130) or the lens 140 is controlled (S350).

As described above, performing vision training in consideration of the adaptation time for each measurement location is performing vision training in consideration of the user's adjustment adaptation time at the corresponding location. Therefore, vision training can be efficiently performed and ciliary muscle strengthening through vision training can be performed more effectively.

In the section where the accommodative adaptation time is short, the adaptability of the user's eyeballs is relatively high as the time to adapt to the target image T1 is short. Therefore, the width of the training section is relatively large in the area where the adaptation time is short and the width of the training section is relatively small in the area where the adaptation time is long, so that the user can obtain an effective training effect without excessive load during training. there is.

As described above, by variably setting the continuous moving speed and intermittent holding time of the display 130 or the lens 140 in each training section and the width of the training section in consideration of the user's adaptation time, the effect of improving eyesight is more effective. can be maximized.

Based on the above-described information, the control unit 190 may set the proximity control adaptive threshold position P3 and the remote control response threshold position P4 within the sharp viewing area AR for effective training section setting. The control unit 190 may set the proximity control adaptive threshold position P3 and the remote control response threshold position P4 by combining the width of the clear viewing area AR and a numerical value considering characteristics according to the age of the user. For example, when the width of the clear visual range (AR) is wide, the high accommodation adaptation interval (FAR) can be set wider, and the higher the age, the narrower the width of the high accommodation adaptation interval (FAR) can be set. . The section between the proximity control adaptation threshold position (P3) and the remote control response threshold position (P4) is set as the high accommodation adaptation interval (FAR), and the interval other than the high accommodation adaptation interval (FAR) within the clear vision range (AR) ( SAR1, SAR2) can be set as a low-accommodation adaptation period. The high adjustment adaptation period (FAR) may be set by selecting one of the measured positions (MP1 to MP10). The high accommodative adaptation period (FAR) is a section in which the user's eyes can comfortably adjust the accommodative response, and it is a method of reducing eye fatigue through accommodative training without recognizing that the training is being performed. It can be used by grafting.

In another training section setting method, the controller 190 moves the display 130 or the lens 140 to one of the adjustment near point position P5 and the adjustment origin position P6. Hereinafter, for convenience of description, it is assumed that the display 130 or the lens 140 has moved to the adjustment near point position P5.

The control unit 190 separates the display 130 or the lens 140 located at the adjustment near point position P5 in the direction of the remote position P2 by a set distance unit, and then performs a measurement operation of maintaining the position for a preset waiting time. The moving unit 150 is controlled to repeat. When the target image TI recognized through the lens 140 does not become clear within a set waiting time, the user inputs an adjustment adaptation confirmation signal through the user input unit 160 . When receiving the adjustment adaptation confirmation signal through the user input unit 160, the control unit 190 stops the measurement operation and remotely adjusts the positions of the display 130 and the lens 140 at the time of receiving the adjustment adaptation confirmation signal. Set to the critical position (P4). In the same way, the proximity control adaptive threshold position P3 is also set.

Alternatively, the control unit 190 may automatically set the proximity control adaptive threshold position P3 and the remote control adaptive threshold position P4. The control unit 190 arbitrarily presets the center point of the statistically average bright field range according to the user's age, or when the display 130 or the lens 140 is approached and separated within the gaze range at a set speed, the user feels most comfortable. A proximity control adaptive threshold position P3 and a remote control adaptive threshold position P4, which are positions spaced apart by a predetermined distance from the reference user-customized position input from the user input unit 160, may be determined. In this case, the proximity control adaptive threshold position P3 and the remote control adaptive threshold position P4 may be set based on the age of the user.

The proximity low accommodation adaptation period SAR1 and the remote low accommodation adaptation period SAR2 are determined by the determined proximity accommodation adaptation threshold position P3 and remote accommodation adaptation threshold position P4. Here, the proximity low adjustment adaptation period (SAR1) corresponds to the area between the control near point position (P5) and the proximity control adaptation threshold position (P3), and the remote low adjustment adaptation period (SAR2) corresponds to the control origin position (P6) and the remote control It corresponds to the area between the adaptation critical position (P4). Each of the low accommodation adaptation intervals SAR1 and SAR2 is an interval reflecting the range of accommodation reserve power of the user's eyeball. When vision training is performed in these low accommodative adaptation intervals (SAR1, SAR2), the user's eyesight can be improved by further expanding the user's accommodative power and accommodative power.

When the near low accommodation adaptation period SAR1 and the remote low accommodation adaptation period SAR2 are set, the control unit 190 selects at least some of the near low accommodation adaptation period SAR1 and the remote low accommodation adaptation period SAR2 as a training period. It is desirable to set it to be included in . That is, the training section may include only the high accommodation adaptation interval (FAR), but including at least one partial interval of the near low accommodation adaptation interval (SAR1) and the remote low accommodation adaptation interval (SAR2) is effective in improving eyesight. .

The training section is set to a near low accommodation adaptation interval (SAR1) to a remote low accommodation adaptation interval (SAR2), or set to a near low accommodation adaptation interval (SAR1) to a high accommodation adaptation interval (FAR), or a remote low accommodation adaptation interval (SAR2). ) to high accommodative adaptation intervals (FAR). Of course, only the near low accommodation adaptation period (SAR1) or the remote low accommodation adaptation period (SAR2) may be set as the training period. The user can select any one of these training sections or combine them. If there is no user selection, the controller 190 may arbitrarily set and select a training section.

When the training section is set, the controller 190 controls the display 130 or the lens 140 to move within the training section. The controller 190 may continuously or intermittently move the display 130 or the lens 140 . That is, after the controller 190 continuously reciprocates the display 130 or the lens 140 within the training range, or moves the display 130 or the lens 140 by the set separation distance within the set training range, During the set training time, the waiting operation can be repeatedly performed. Movement of the display 130 or the lens 140 in the viewing direction causes the same effect as changing the diopter value of the lens 140 . That is, the refractive index is changed.

At this time, the size of the target image T1 may change according to the distance. For example, the closer the display 130 or the lens 140 approaches the eyepiece 124, the smaller the size of the image is, and conversely, the closer the distance to the remote location P2 is, the larger the size of the image is set. Through this, more accurate control power measurement and training are possible.

Through this training, the user's ciliary muscle contracts or relaxes to adapt to the change in focal length with the target image TI, which changes according to the movement of the display 130 or the lens 140, and thus the ciliary muscle is strengthened. .

When the vision training is completed, the vision training apparatus ends the training and stores the training data in the memory 180. The training data includes information about time until one cycle of training ends, training mode, training conditions, and the like. Training data is stored for each user, and the degree of visual acuity improvement according to training may be confirmed by analyzing the stored training data. Accordingly, the user can check the degree of visual acuity improvement and effectively set a future training plan and training direction.

The vision training device according to the present invention measures the position of the adjustment near point P5 and the position of the adjustment origin P6 corresponding to the user's current visual acuity, and sets the training section based on the measurement, so the visual acuity improvement effect is high.

9 is a reference diagram for explaining a training process according to the movement of the lens 140. As can be seen in FIG. 9, the vision training apparatus according to the present invention changes the focal distance between the target image TI and the eyeball by moving the display 130 and/or the lens 140 so as to have a relationship with the visual acuity. can strengthen the ciliary muscles. Vision training through the movement of the lens 140 is the same as the description of the measurement mode and training mode according to the movement of the display 130 described above. That is, by moving the lens 140, the position of the lens 140 is measured as the proximity adjustment adaptive threshold position (P3), the remote adjustment adaptive threshold position (P4), the adjustment near point position (P5), and the adjustment origin position (P6). Based on this, vision training can be performed by setting a high accommodation adaptation interval (FAR), a near low accommodation adaptation interval (SAR1), and a remote low accommodation adaptation interval (SAR2).

This is due to the same characteristic that movement of the display 130 or the lens 140 both changes the focal distance between the target image T1 and the eyeball. Of course, by moving the display 130 and the lens 140 together, the focal distance between the target image TI and the eyeball may be changed to strengthen the ciliary muscle related to visual acuity.

10 is an explanatory view schematically showing a vision training device according to another embodiment of the present invention. As can be seen in Figure 10, this vision training device may be provided with a plurality of lenses along the gaze direction. The vision training device may include a second lens 145 disposed between the eyepiece 124 and the lens 140 along the gaze direction. By providing a plurality of lenses in this way, vision training can be performed through more diverse refractive index changes than when using a single lens. The second lens 145 may be disposed between the lens 140 and the display 130 . The position of the second lens 145 may be fixed or movable. Here, the moving unit 150 according to the present invention may selectively move at least one of the lens 140 and the second lens 145 or may move together. To this end, the moving unit 150 may be adopted as any one of a piezo actuator, a VCM actuator, and an encoder actuator. Also, the moving unit 150 may include a second moving unit for moving the second lens 145, and the second moving unit may adopt any one of a piezo actuator, a VCM actuator, and an encoder actuator. At least one fixed or movable lens may be additionally disposed on the second lens 145 to additionally influence the adjustment of the focal length.

The size of the image of the target image TI according to the present invention may be correspondingly changed according to the location of the display 130 . For example, the size of the image of the target image TI is reduced as the display 130 or the lens 140 approaches the eyepiece 124, and the image of the target image TI decreases as the distance from the eyepiece 124 increases. It is desirable to increase the. Through this, it is possible to accurately measure and train the accommodative power.

The target image according to the present invention can be moved up, down, left and right. Through this, various eye muscles can be exercised.

Claims (11)

In the sight training device,
a housing having at least one eyepiece corresponding to a user's eyeball;
a display for displaying a target image in front of the user's visual direction;
a lens disposed between the eyepiece and the display;
a moving unit capable of moving at least one of the display and the lens along the viewing direction;
A control unit configured to set at least one training period within a movement range of the display and the lens and control the moving unit to move at least one of the display and the lens within the training period,
The control unit sets a clear viewing area corresponding to a predetermined adjustment near point position and an adjustment origin position within the movement range,
The training section includes at least a part of the clear viewing area section,
The position of the accommodation near point and the position of the accommodation origin are set according to the confirmation of accommodative adaptation in which the user's eyeball is changed from a non-emetropic state to an emmetropic state;
The control unit controls the accommodative adaptation, which is the time until the accommodative adaptation confirmation signal is input after at least one of the display and the lens moves to each of the plurality of measurement positions in the sharp viewing area section. Time is measured, and a training speed for moving the display or the lens in the training section is determined based on the accommodative adaptation time. delete According to claim 1,
Further comprising a user input unit for receiving a user input signal from a user,
The sight training apparatus according to claim 1 , wherein the position of the adjustment near point and the position of the adjustment origin are set through the input of the user input signal. According to claim 1,
Further comprising a sensor module for generating a visibility change confirmation signal by checking whether the user's eyeball changes from an emmetropic state to a non-emmetropic state or from a non-emmetropic state to an emmetropic state,
The sight training device according to claim 1 , wherein the control unit sets the position of the adjustment near point and the position of the adjustment origin based on the visibility change confirmation signal. According to claim 1,
The control unit measures continuous or intermittent adjustment and adaptation speed through a user input unit or sensor module within the clear visual range,
Sight training apparatus, characterized in that the training speed of the display and the lens within the training section is determined by reflecting the measured speed. According to claim 1,
The control unit sets predetermined proximity control adaptive threshold positions and remote control adaptive threshold positions within the clear viewing range;
The training section includes at least a part of a high accommodation response section corresponding to between the proximity accommodative adaptation critical position and the remote accommodative adaptation critical position. According to claim 1,
Sight training apparatus further comprising at least one second lens disposed between the lens and the display or between the lens and the eyepiece along the viewing direction. According to claim 7,
Sight training device, characterized in that the moving unit selectively moves at least one of the lens and the second lens. According to claim 8,
Sight training device, characterized in that the moving unit is any one of a piezo actuator, a VCM actuator, an encoder actuator. According to claim 7,
The vision training device, characterized in that the moving unit comprises a second moving unit for moving the second lens. According to claim 1,
The target image is a vision training device, characterized in that the size of the image changes according to the position of the display.

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