WO2019240540A1 - Method, system, and computer program for measuring and training control power of eyes with improved accuracy - Google Patents

Abstract

Provided are a method, a system, and a control unit program for measuring and training a control power of eyes with improved accuracy. The method for measuring and training the control power of the eyes with improved accuracy comprises: a lens placement requesting step for, when requesting a control unit to place an additional lens of a lens device in front of a specific eyeball of a user, the lens device to comprise at least one lens and configure a control power measuring system together with a display and the control unit; a measurement indication correcting step for correcting, as a first distance which is a distance from the eyeball of the user to the display is continuously adjusted for measuring the control power, the size of a measurement indication displayed on the display on the basis of the first distance; and a step for calculating, by the control unit, the control power of the eyeball of the user on the basis of a distance in which the eyeball of the user changes from a controlled state to an uncontrolled state or changes from the uncontrolled state to the controlled state.

Description

Methods, systems, and computer programs for improved eye control and training

The present invention relates to methods, systems, and computer programs for eye measurement and training of improved accuracy.

A person's normal healthy eyes can have an image of an object in the retina that is infinitely far from about 10 cm in front of the eye. Such a large depth of focus is because the pupils can be made smaller when viewing a single object to reduce scattered light on the retina, and the refractive power of the lens can be changed to form an image on the retina.

The effect of changing the refractive power of the eye is called the control function of the eye and the maximum control ability is called the control power. In general, the adjustment power can be expressed by how much the power of refraction when adjusted to the near point increased than the power of the resting eye.

The young man's control is about 10 diopters, but as age increases, it decreases to about 2.5 diopters every 10 years.

Measuring the control force is a measure of the maximum range of activity of the ciliary muscles, that is, measuring the absolute value of the diopter difference obtained by inverting the width of the thickness change of the lens which changes according to the movement of the ciliary muscles as the control force.

In general, the method of measuring or training the regulation is to measure or train without excluding the influence of the factors that interfere with the measurement or training, and it is difficult to measure or control the precise regulation due to factors other than the regulation. There is this.

Therefore, the problem to be solved by the present invention is to provide a method for accurately measuring and precisely training the control power except for the other factors affecting the control power measurement or training results in addition to the control power of the eye control muscle.

Problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, an adjustment method for measuring and training the eye with improved accuracy according to an embodiment of the present invention, the control unit is requested to place the lens of the lens device in front of a specific eye of the user, the lens device, A lens placement request step, comprising: at least one lens and comprising a display and the control unit to configure an adjustment force measuring system; As the first distance, which is the distance from the eyeball of the user to the display, is continuously adjusted for measuring the adjustment force, the controller corrects the size of the measurement target displayed on the display based on the first distance. step; And calculating, by the controller, an adjustment force of the user's eye based on a distance at which the eyeball of the user is changed from the controlled state to the uncontrolled state or changed from the uncontrolled state to the controlled state.

In another embodiment, the display is included in the lens device is characterized in that the position is adjusted.

In another embodiment, the display is a user terminal physically separated from the lens device, wherein the first distance is adjusted according to the position of the user terminal by the user.

In another exemplary embodiment, the user terminal or the lens apparatus may include a distance sensor, and the first distance may be measured in real time by the distance sensor.

In another embodiment, the measuring target correction step, the control unit to correct the size of the measurement target by reflecting the magnification of the subscription lens disposed in front of the user eye by the lens device.

In another embodiment, the controller may further include adjusting the brightness of the display based on the first distance.

According to another aspect of the present invention, there is provided a method for measuring and training an improved control force of an eye according to another embodiment of the present invention, wherein the controller requests that the lens of the lens device be placed in front of a specific eye of the user. A lens arrangement requesting step, comprising at least one lens and comprising a display and the control unit to configure an adjustment force measuring system; A measurement target correction step of correcting the size of the measurement target based on the changed refractive index by changing the refractive index of the subscription lens disposed in front of the user's eye for measuring the adjusting power; And calculating, by the controller, an adjustment force of the user's eye based on the refractive index of the eyeball of the user changed from the controlled state to the uncontrolled state or from the uncontrolled state to the controlled state.

In another embodiment, changing the refractive index of the subscribing lens may include changing the refractive index by changing the subscribing lens to the revolver method by configuring the at least one lens in a revolver method, and configuring the subscribing lens to a variable focus lens. At least one of changing the refractive index by changing the focus.

In another embodiment, the control unit corrects the effect of the user's vision, the effect of the user's vision is corrected based on the diopter value for the user's vision, correcting the effect of vision It further includes.

In another embodiment, the control unit corrects the influence of the subsidiary lens based on the diopter value of the subsidiary lens when the subsidiary lens disposed in the lens device is not a planar lens. It includes more.

In another embodiment, the controller corrects the adjustment effect of the subscription lens disposed in the lens device, the adjustment effect of the subscription lens is based on the distance between the vertices, the frequency of the subscription lens and the viewing distance of the user And correcting the lens adjustment effect.

In another exemplary embodiment, the measuring target correction step may include providing a comparison target that is not clearly visible together with the measurement target, and correcting the comparison target in the same manner as the measurement target.

In another embodiment, when a separate wearing lens is disposed between the eyeball of the user and the subsidiary lens, the effect of correcting the visual acuity may be corrected for the visual acuity of the user wearing a separate wearing lens. The correction is based on the diopter value.

In another embodiment, when a separate wearing lens is disposed between the eyeball of the user and the subscription lens, the correcting lens adjustment effect may include adjusting the adjustment effect of the combined lens using the subscription lens and the wearing lens. To calibrate.

In another embodiment, the diopter value for the user's vision is obtained from the user's input, or when the user wears a separate wearing lens, the diopter value corresponding to the user's wearing lens Will be obtained by input.

In another exemplary embodiment, the measurement schedule may be provided as a form whose shape is changed every predetermined time.

In another exemplary embodiment, the controller may further include receiving, by the user, whether the changed measurement schedule is confirmed by the user, receiving an input of a measurement schedule type whose shape is changed at a predetermined time.

In another embodiment, if the display is configured separately from the lens device and included in the user terminal, the control unit further comprises the step of displaying the progress of the adjustment force measurement on the user terminal, The progress state of the adjustment force measurement is provided by displaying the position recognized by the distance sensor on the user terminal.

In another embodiment, the controller may further include repeatedly changing the refractive index of the subscribing lens in the lens device and providing repetitive stimulation training.

According to another embodiment of the present invention for solving the above-described problems, an improved accuracy adjustment and training computer program of an eye is combined with a computer, which is hardware, and stored in a medium for executing any one of the above-described methods. .

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, by correcting and applying each other factors affecting the measurement of the control power or the training result in addition to the control power of the eye control muscle, it is possible to derive an accurate adjustment or measurement training results.

In addition, according to the present invention, it is possible to derive an accurate control force measurement or control force training results by providing a comparative table or removing the afterimage effect.

In addition, according to the present invention, it is possible to induce concentration on training by providing a modified form of the measurement target.

Further, according to the present invention, by presenting the adjustment force measurement results to the user as an objective indicator, the user can easily grasp the adjustment force measurement results.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view for explaining a method for measuring and training the adjustment of the eye with improved accuracy according to an embodiment of the present invention.

FIG. 2 is a diagram for describing a method of measuring and training an adjustment force of an eye in which a luminance influence on a display is corrected according to an embodiment of the present invention.

3 is an exemplary view showing a control response according to a control stimulus in a case where there is a luminance change and a case where there is no luminance change.

4 is a view for explaining a method of measuring and training the adjustment power of the eye corrected the effect of vision according to an embodiment of the present invention.

FIG. 5 is a diagram for describing a method of measuring and training an adjustment force of an eye in which an influence of a subscription lens is corrected according to an exemplary embodiment of the present invention.

FIG. 6 is a diagram for describing a method of measuring and training an adjustment force of an eye in which a lens adjustment effect is corrected according to an embodiment of the present invention.

7 is a view for explaining a method of providing a comparison target with a measurement target in the adjustment force measurement.

FIG. 8 is a diagram for explaining a configuration of a display screen that provides a comparison schedule together with a measurement schedule.

FIG. 9 is a diagram for describing a method of receiving a form input of a measurement target whose shape is changed at a predetermined time from a user.

FIG. 10 is a diagram for describing a method of providing an adjustment result of an eye to a user.

11 is a diagram for describing a method of receiving input of feedback from a user.

12 and 13 are diagrams for explaining a method of providing an adjustment measurement or an adjustment training progress state.

Advantages and features of the present invention, and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be embodied in various different forms, and the present embodiments only make the disclosure of the present invention complete, and those of ordinary skill in the art to which the present invention belongs. It is provided to fully inform the skilled worker of the scope of the invention, which is defined only by the scope of the claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components. Like reference numerals refer to like elements throughout, and "and / or" includes each and all combinations of one or more of the mentioned components. Although "first", "second", etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms used in the present specification (including technical and scientific terms) may be used in a sense that can be commonly understood by those skilled in the art. In addition, terms that are defined in a commonly used dictionary are not ideally or excessively interpreted unless they are specifically defined clearly.

The spatially relative terms " below ", " beneath ", " lower ", " above ", " upper " It can be used to easily describe a component's correlation with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when flipping a component shown in the drawing, a component described as "below" or "beneath" of another component may be placed "above" the other component. Can be. Thus, the exemplary term "below" can encompass both an orientation of above and below. Components may be oriented in other directions as well, so spatially relative terms may be interpreted according to orientation.

In the present specification, a 'computer' includes various devices capable of performing arithmetic processing and providing a result to a user. For example, a computer can be a desktop PC, a notebook, as well as a smart phone, tablet PC, cellular phone, PCS phone (Personal Communication Service phone), synchronous / asynchronous The mobile terminal of the International Mobile Telecommunication-2000 (IMT-2000), a Palm Personal Computer (PC), a Personal Digital Assistant (PDA), and the like may also be applicable. In addition, in the present specification, 'computer' may correspond to a user terminal.

'Controlling power' in the present specification means the maximum range of activity of the ciliary muscle of the eye to adjust the thickness of the lens.

In the present specification, the 'adjustment measurement system' includes a lens device and a display including at least one lens and accurately measures the user's adjustment power, and may perform the adjustment power training and the adjustment ease training based on the adjustment power measurement result. .

In the present specification, the 'subscribed lens' refers to a lens disposed in front of a user's eye for adjusting or measuring one of the one or more lenses included in the adjusting force measuring system, and the joining lens includes a flat lens, convex and concave lenses of various diopters, and a focal point. And a variable lens.

In the present specification, a 'focal variable lens' is a lens whose focus is variable, and the lens continuously changes the focus by physically changing the position or changing the position.

In the present specification, a 'user terminal' is a device that communicates with a lens device to perform adjustment force measurement, adjustment force training, or ease of adjustment training, or receives a result, and includes a display, and an application installed in the user terminal and a lens device are interworked.

The display included in the user terminal may provide an indication for the control measurement, the control training or the ease of training training.

In this specification, the "near point" is the shortest distance that the human eye can specify, and is the closest point that can be clearly seen by the human eye, that is, the point that can be clearly seen when the lens becomes thickest.

'Ease of control' as used herein means the ability of the control system to respond to changes in the control stimulus, which is the ability to quickly change the control at various viewing distances. In other words, ease of adjustment is the ability to quickly focus when the viewing distance changes.

In the present specification, 'timely' or 'normal eye' is an eye in which parallel rays coming from an infinitely distant place without adjustment as normal eyes form an image on the retina surface.

In the present specification, 'non-time' or 'non-timely' is an eye in which the image of the object is not exactly located in the retina without being controlled. Irregular eyes include myopia, hyperopia and astigmatism.

In the present specification, "myopia" is a state of refraction that focuses in front of the retina, unlike visual acuity, and distant objects are hard to see.

In the present specification, 'raw' is a refractive state in which a focal point is behind the retina, unlike a fixed view, and a near object is hard to see.

In the present specification, 'astigmatism' is a refractive state in which focal spots are not accurately formed on the retina.

As used herein, the term "adjustment effect" refers to a change in refraction depending on the lens being worn and the distance value at which it is viewed.

In general, when the user is nearsighted, a negative lens effect decreases as the distance to which the user is wearing the negative lens decreases, and in the case of the hyperopia, when the user wears a positive lens, the positive distance increases as the user approaches the distance. Refractive changes occur with a greater lens effect.

In this specification, 'illuminance' is a value representing the intensity of light received by a certain surface, that is, the degree to which a certain plane shines brightly.

In the present specification, 'brightness' refers to the brightness of an object viewed from a certain direction and refers to the degree of light emission of the light emitting body.

First, the basic meaning of measuring accommodation and the various factors that need to be controlled when measuring or training.

Measuring the control force with the control measuring device measures the width of the thickness change of the lens that changes with the movement of the ciliary muscle, that is, the width of the total refractive power of the eye due to the change of the lens thickness.

In addition, to measure the adjustment force is to measure the absolute value of the difference between the diopter inverted the category or distance from the farthest distance to see clearly and the closest distance to see clearly.

In other words, to measure the control power is to measure the absolute value of the difference between the diopter inverse of the range or distance between the eye's minimum diopter state (the eye's smallest refractive power state) and the eye's maximum diopter state.

In order to accurately measure the adjustment force, various factors such as the distance to the object to be viewed, the size and color of the target, the contrast sensitivity, the illuminance of the surrounding environment, the brightness of the display environment to be observed, and the ambient noise must be controlled.

The various factors described above are factors affecting binocular vision of the eye, and binocular vision is the sensory and functional activity of the eye and brain that process two images each eye receives into one clear image. to be.

The reflex action of binocular function, which is a function of clearly seeing one image with both eyes, is due to synkinetic eye movement in which ciliary muscle contraction / relaxation movement, binocular congestion / calculation movement, and iris movement / shandong occur at once.

For example, cooperative eye movements may result in contraction of ciliary muscles when near stimulation occurs, congestion movements of binoculars gathering both eyes, and iris movements in each eye. And iris shandong inside each.

Accordingly, the present invention is a method, apparatus, and system for the measurement and training of eye control power with improved accuracy in controlling various factors as described above in order to accurately measure and train control power.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Adjusting force measuring system according to an embodiment of the present invention, a lens device including at least one lens, a control unit and a display.

The lens device serves to place a specific lens in a specific position in front of the user's eye for adjusting force measurement or training for improving the adjusting force. Detailed description of the structure of the various lens devices will be described later.

The controller performs a role of adjusting the lens device or the display in order to measure or improve training. The controller may perform lens change, refractive index change, display or lens position change. In addition, the controller generates or changes an image (eg, a target) displayed on the display. In addition, the control unit may be divided into a first control unit and a second control unit included in each of the physically separated devices when the adjustment force measuring system is formed of a plurality of physically separated devices as described below.

The display unit plays a role of outputting a target for measuring the adjusting power or training for improving the adjusting power.

The adjustable force measuring system may form the lens device, the controller and the display as one device or a plurality of physically separated devices. In one embodiment, the display is included in the adjustment force measurement system integrally with the lens device, and includes two displays to be disposed respectively in both eyes. At this time, when the adjustment force measuring system is disposed in front of the user's eyeball, the lens device is disposed in front of the user's eyeball, and the display is placed in front of the predetermined distance of the lens device. In addition, the two displays can be moved in position so that the distance to the lens device is adjusted. That is, the display is included in the lens device and adjusted for position.

In another embodiment, the display is not integrally included in the lens device and may be a separate user terminal. That is, the adjustment force measuring system includes a user terminal including a display and a lens device. In this case, as the user terminal moves, the display may also move in position so that the distance between the display and the lens device or the distance between the user's eyeball and the display is adjusted.

In addition, in one embodiment, when the adjustment force measuring system is implemented with a display and a lens device as one device (that is, the adjustment force measuring device), the control unit may be provided in one adjustment force measuring device.

In another embodiment, the controller may be included in a separate user terminal or an application installed in the user terminal. For example, when the adjustment force measuring system includes a lens device separate from a user terminal including a display, the controller is included in the user terminal or an application installed in the user terminal, and the application device and the lens device installed in the user terminal are interlocked with the adjustment force. Measurement or training can be controlled.

In addition, a lens device including at least one lens is configured in various embodiments. The structure of the lens device described below may correspond to both a case in which the display device is implemented as a single adjustment force measuring device and a case in which the lens device is physically separated from the display.

In one embodiment, the lens device is a revolver method, at least one lens is configured to change the lens in the revolver method, the lens is changed by changing the lens according to the distance to the user terminal or the user's vision.

The revolver method is a rotation method. A plurality of lenses are centered and surrounded in a form that can be changed into a circular or other rotation method, thereby changing and arranging by rotating a lens to be used in measurement of adjustment, adjustment of training or ease of training.

In another embodiment, the lens device may consist of a single lens such that the single lens corresponds to a subscription lens and the subscription lens is not replaceable or the subscription lens may be manually replaced by the user.

In another embodiment, the lens device is composed of a focal variable lens, and the focal variable lens is composed of a single lens or a coaxial optical lens having concentric circles of the two or more lenses on the same axis. At this time, the focus variable lens corresponds to the subscription lens.

In one embodiment of the provision form of the lens device, it may be provided in a form that can be worn by the user (eg, glasses, etc.). In the case of a lens device of a wearable type, when the controller requests the user to place the lens device in front of the user's specific eyeball, the user may perform a request of the controller by wearing the lens device.

In another embodiment, the lens device may be provided in a mounted form. When the lens device is provided in a mounted form, when the controller requests the user to place the lens device in front of the user's specific eyeball, the controller may perform the request of the controller by placing the user's eyes close to the mounted lens device. Can be.

The lens device is disposed in front of a specific eye of the user, in one embodiment, the distance between the specific eye and the lens device is arranged so close that there is no effect of the distance between the vertices due to the subscription lens, in another embodiment, the subscription lens If there is an influence of the distance between the vertices and the control force due to, it is placed in front of a certain distance of the specific eye of the user.

In another embodiment, the lens device or display (eg, a user terminal including the display) further includes a first distance sensor that measures the distance between the lens device and the display when the display is physically separated. can do. For example, when the distance from the eyeball to the end of the lens device is fixed as the user wears the lens device, the first distance sensor measures the distance between the lens device and the display to determine the distance between the user eye and the display (ie , First distance). Specifically, the adjustment force measuring system may calculate the first distance by adding the distance value measured by the first distance sensor and the length of the lens device (that is, the length from the eyeball to the end of the lens device when the lens device is worn).

The first distance sensor may be, for example, a sensor using infrared rays or ultrasonic waves. Also, for example, the first distance sensor may measure the first distance by applying a Received Signal Strength Indicator (RSSI) method or a Radio Frequency (RF) method.

Also, for example, when the first distance sensor is provided in the user terminal, the first module may correspond to a camera module. That is, the camera module in the user terminal may capture the lens device and calculate a first distance based on the captured image.

The first distance may be measured in real time by the above-described distance sensor.

In another embodiment, the lens apparatus may further include a second distance sensor that measures a distance between the eyeball of the user and the lens. That is, when the lens position in the lens device is moved, the second distance sensor calculates a second distance between the lens and the eyeball.

The lens device may further include a distance change driving device between vertices.

In another embodiment, the lens apparatus includes a distance sensor, a first communication unit, a first control unit, and at least one lens, and a subscription lens selected or preset from a user among at least one lens is specified by the user. Placed in front of the eye.

When the display of the adjustment force measuring system is configured separately from the lens device and included in the user terminal, the user terminal includes a display, a second communication unit, a second control unit, and an input unit.

When the second communication unit of the user terminal requests the lens device to select a subscription lens among the at least one lens, the first controller of the lens device places the subscription lens in front of the specific eye of the user.

When the second communication unit of the user terminal receives the distance value derived from the distance sensor of the lens device from the first communication unit of the lens device, the second control unit of the user terminal corrects the size of the measurement schedule, the input unit of the user terminal, Receive input of feedback from the user.

1 is a view for explaining a method for measuring and training the adjustment of the eye with improved accuracy according to an embodiment of the present invention.

Referring to FIG. 1, according to an embodiment of the present disclosure, in the control method of measuring and adjusting the eye's accuracy, the control unit receives a request for measuring the eye's adjusting force from the user (S100), and the control unit provides the lens device to the user. Requesting to place the subscription lens of the user in front of a specific eye (S200) and the control step correction step (S300), correcting the size of the measurement target.

When the control unit receives a request for measuring the adjustment of the eye from the user (S100), the control unit requests the user to place the subscribing lens of the lens device in front of the specific eye of the user (S200).

In step S200, when the controller requests the user to place the subscribing lens of the lens device in front of the user's specific eyeball, the lens device includes at least one lens and configures an adjustment force measuring system together with the display and the controller.

The adjustment force measurement system is comprised as mentioned above, The provision form of the adjustment force measurement system is also as above-mentioned.

The display included in the adjustment force measuring system corresponds to a display included in a user terminal when the display device is integrated with the lens device or separately from the lens device.

In step S300, the control unit corrects the size of the measurement target, in which the position of the display is moved or the user's eyeball and the lens are moved so that the first distance, which is the distance between the display and the user's eyeball, becomes closer or closer. As the position of the subscribing lens is moved so that the second distance, which is a distance between the sub-lens and the sub-distance, is closer, the control unit corrects the size of the measurement target based on the distance between the user's eye and the display and the magnification of the subscribing lens disposed on the lens device. It is.

That is, in the step (S300) of the control unit correcting the size of the measurement target, the control unit corrects the size of the measurement target by reflecting the magnification of the subscription lens disposed in front of the user eye by the lens device.

According to the present invention, after the user arranges the adjustment force measuring system in front of a specific eye, the controller or the user adjusts the distance to the display, which is the first distance, by using the distance sensor included in the adjustment force measuring system, or the subsidiary lens in the lens device. By adjusting the second distance by moving the position of, the adjustment force can be easily measured.

The position of the display or the subscribing lens is moved, in one embodiment, as the display in the adjustment force measuring system is integrally formed with the lens device, and the control unit changes the distance between the subscribing lens and the display based on the distance sensor. It is to shift the position or to shift the position of the subscription lens.

In another embodiment, the position of the display or the subscribing lens is shifted, wherein the display in the adjustment force measuring system is configured separately from the lens device and disposed in the user terminal, and the controller is configured based on the distance sensor. By providing the user with instructions to move the position of the display or the position of the subsidiary lens to change the distance between the display and the display, the position of the display may be adjusted by the user holding the user terminal and moving the position of the user terminal within The position of the subscription lens is shifted either by being moved or by the user moving the subscription lens.

Moving the display so that the display is farther or closer to the subscribing lens, or moving the lens within the lens unit, is a measure of control, and the user's lens becomes thicker and thinner, or thinner and again, while moving the display. By measuring the state of thickening, such as measuring the user's controllability state.

In one embodiment, the adjustment force measuring method of the present invention is such that the user is disposed so close that the registration lens in the adjustment force measurement system is placed in front of the user's eye, and the user's eye and the subscription lens are not affected by the distance between the vertices. , Near the point where the user first perceives blur (uncontrolled) as the display approaches the eye, or near the point where the user first notices sharpness (adjusted) as the display moves away from the eye. The adjustment force is calculated by obtaining the distance data and calculating the proximity data.

In another embodiment, when the position of the user's eyeball and the display is fixed, when the subscribing lens in the adjustment force measuring system moves forward and backward between the user's eyeball and the display (ie, a change in the distance between vertices) For example, near the point where the user perceives the first blur (uncontrolled) as the subsidiary lens moves away from the eye, or near the point where the user perceives the first sharpness (adjusted state) as the subsidiary lens approaches the eye. The control force is calculated by obtaining distance data to be calculated and calculating the proximity data.

That is, the controller calculates the adjustment force of the user's eye based on the distance from the user's eyeball to the uncontrolled state or the uncontrolled state.

In this case, the lens subscription device may include a distance change driving device between vertices. In addition, the subscription lens disposed in the lens subscription device may include a focus variable lens.

In step S300, the control unit corrects the size of the measurement target, in which the controller changes the refractive index of the subsidiary lens in the lens device and measures the adjustment force, but corrects the size of the measurement target based on the changed refractive index. will be.

At this time, changing the refractive index of the subscription lens, in one embodiment, at least one lens is configured in the revolver method to change the refractive index by changing the subscription lens in the revolver method, in another embodiment, the subscription lens is focused It is composed of a variable lens to change the refractive index by changing the focus.

In addition, changing the refractive index may change only a revolver-type subscription lens or change the focus of the variable focus lens while the position of the display and the lens device is fixed, or the revolver may be adjusted while the distance between the display and the lens device is adjusted. It is also possible to change the subscription lens of the scheme, or to change the focus of the focus variable lens together.

The variable focus lens is composed of a coaxial optical lens having one concentric lens or two or more concentric circles formed on the same axis, and the lens continuously changes the focus by physically changing the position or changing the position.

The physical change of the lens is a change in the curvature of both the front and rear of the lens, or a change in the curvature of the front or rear of the lens.

The change in the position of the lens is the change of the distance between the eye and the lens, or the distance of the lens when the lens is two or more.

The variable-focal lens continuously changes the focal point of the lens to change the refractive power of the lens, and a change in the refractive power and the magnification of the image correlated thereto may occur.

Specifically, the focus variable lens is a lens in which a focal point is variable while a fluid is contained in the lens and the shape of a space including the fluid changes due to the movement of the fluid by external physical pressure.

In one embodiment, the focus variable lens may be configured by a liquid crystal (LC) to change the focus by a method of changing the refractive index of the liquid crystal according to a change in the arrangement direction of molecules.

In another embodiment, the variable focus lens may be variable in focus by physically extending the equatorial portion of the lens, such as a human lens, using an elastic, flexible polymer material. Resilient flexible polymer materials can be included regardless of type.

In another embodiment, the focus variable lens may be variable in focus by changing the curvature while the front and the rear face generate electrical attraction or repulsive force.

In measuring the adjustment force, the reason for adjusting the size of the target is as follows.

In one embodiment, in the case of measuring the adjustment force by using the distance change between the display and the subscribing lens, the distance between the display and the user's eyeball, which varies according to the movement of the display, is measured by the first distance sensor described above.

In measuring the adjustment force, the measurement target is able to measure the adjustment force by moving from a long distance to a close distance and from a close distance to a far distance. When the display is included in the user terminal, the arm length of the user is large enough to accurately measure the adjustment force. It does not fall within the movable range, and even when the display is integrally formed in the lens unit, the distance between the display and the subscribing lens does not correspond to the distance range enough to accurately measure the adjustment force.

In particular, in the case of a user who lacks controllability, the user can feel the sharpness when the distance between the display and the subscribing lens is far enough than that of the user's arm.

In another embodiment, in the case of measuring the adjustment force by using the change in the refractive index of the lens, as described above, the adjustment force measuring system is the adjustment force through the change in the refractive index of the lens through the change of the revolver type lens or the focus of the focus variable lens. Measure

At this time, the size of the image displayed on the display may be changed by the change in the refractive index of the lens. Therefore, the size of the image changed by the change in the refractive index of the lens can be corrected by changing the size of the target. By correcting by changing the size of the target, accurate control force can be measured.

In addition, the most important visual information in the measurement of self-controlling ability is the degree of blurring of the target being watched. In order to quickly detect the degree of blurring of the target, the shape of the target should be thin and sharp. When the size of the target becomes large, the user may not notice even when the measuring point of the adjustment force is reached, so it is necessary to adjust the size of the target.

In addition, ophthalmologic control measures should be based on visual acuity at a distance or near distance using the smallest recognizable size, that is, the smallest letters on the visual representation.

In the ophthalmology, the control power is measured by using a target that has been raised to a predetermined size based on the long-distance or near vision measured using the smallest letters that can be seen on the target. As the eye gets closer to the eye, the magnification of the image increases, and thus, the difference between the reference mark and the image to be originally measured varies. Therefore, the size of the image should be changed to compensate for the difference between the size of the image.

Therefore, by correcting the size of the target provided on the display and arranging the subsidiary lens that can move the origin to the near point in the lens device, the measurement can be performed like the target placed at a long distance even if measured within a short distance. .

Correcting the size of the target according to the distance has the same effect as changing the size of the image.

In addition, by correcting the size of the target provided on the display, it is possible to correct the size of the image that is changed by the refractive index change of the lens, thereby measuring the correct adjustment force.

The method of correcting the size of the target according to the distance will be briefly described as follows.

The visual acuity table, designed for visual acuity measurement, is a tool for evaluating whether one minute angle can be distinguished at a distance of 5 m based on visual acuity 1.0. The targets produced for each one-minute division have at least one empty space equal to one or more of the total heights of five times the one-minute angle, so that the evaluation of the contrast between the target and the empty space can be evaluated. It must be made.

The 1-minute angle is an angle obtained by dividing 1 degree by 60 degrees out of 360 degrees of the circle, and can be converted in angle units. If the viewing distance changes with the time constant at 1 minute angle, the height of the target is also changed. Therefore, it is possible to produce the target according to the gaze distance by calculating the value by which the height of the target changes.

The visual acuity table contains a variety of indicators for evaluating the distinction of other minutes, including 1.0 for assessing whether one minute can be distinguished.

The size of the visual acuity table according to the various angles is also proportional to the angle, which can be used to derive the size of the visual field.

To adjust the size of the first target, the target size according to visual acuity may be adjusted using a ratio of 5m according to the distance based on 5m.

For example, when the target size of 1.0 visual acuity is calculated according to the distance, one degree is divided into 360 equal parts and one minute is divided into 60 equal parts by one degree, so that the size of each minute angle is 0.016666 degrees. At this time, since the value of tan1 ° is 0.0175, if the distance increases by 1 mm while maintaining the angle of 1 minute, the proportion of the image size which increases proportionally becomes 0.0002971.

The target size of 1.0 is proportional to the value of 0.0002917 according to the above-described example, and is represented by Equation 1 below.

<Equation 1>

Size of 1.0 target by distance = 0.0002917 X distance (mm) X 5

In Equation 1, the distance (mm) is an absolute value, and although the distance before the eye is expressed as a negative number, the size of the target is always derived as a positive number.

Therefore, according to Equation 1, in the case of other senses (other vision) is calculated in proportion to the size of the 1.0 target according to the distance.

For example, in the case of 0.5 visual acuity, the size of the 0.5 visual acuity can be derived by doubling the size of the 1.0 visual acuity along the distance.

Therefore, the target size according to the distance change and the visual acuity is expressed by Equation 2 below.

<Equation 2>

Size of target by distance and visual acuity = 0.0002917 X (1 / sight) X distance (mm) X 5

The adjusting of the size of the second target may include adjusting the size of the first target to the size of the second target based on the refractive power of the subsidiary lens and the magnification of the subsidiary lens based on the distance between the peak of the subsidiary lens and the eye.

In the visual acuity measurement, a method of correcting the lens magnification by the subsidiary lens power will be briefly described as follows.

The purpose of correcting the effect of lens magnification is to allow all users to see the size of the retina seen by standard vision. If the spectacle lens is placed in front of the eye in correcting the effect of the lens magnification, the relative magnification, which is the ratio of the size ratio of the non-temporal eye to the retinal eye, corrected with the spectacle lens with respect to the size of the standard retina with the same object, the naked eye Apply the magnification, which is the ratio of the size of the retina to the eyeglasses and to the naked eye.

In case of non-wearing glasses, correction of the self-magnification (lens power in the lens unit) is required when on time, and in case of non-wearing glasses, the self-magnification (lens power in the lens unit and the spectacle lens to be corrected) is required. Frequency).

For glasses wearers, correction of the relative magnification (lens power affiliated with the lens device) is required when the corrected timing is corrected. For glasses wearers, the relative magnification (lens power and correction that is attached to the lens device is required when the glasses are corrected non-timely. Correction of spectacle lens power).

The formula for adjusting the size of the target according to the subscription lens is expressed by Equation 3 below by applying a self-magnification formula to the phase change caused by the subscription lens power.

<Equation 3>

Size of the second timeline = size of the first timeline X (1 / (1 + l * D ')

where l is the distance between vertices and D 'is the lens-side vertex refractive power (lens power sign).

As shown in Equation 3, when the self-magnification formula is applied to the phase change caused by the subtractive lens power, the size of the second target may be adjusted based on the refractive power of the subordinate lens and the distance between the vertex of the subordinate lens and the eye.

When the user wears the spectacle lens, adjusting the size of the second timetable includes: the ratio of the subsidiary lens based on the refractive power of the subsidiary lens and the distance between the vertex of the subsidiary lens and the eyes, the refractive power of the spectacle lens, and the spectacle lens. The size of the first timeline may be adjusted to the size of the second timeline based on the distance between the vertex and the eye.

That is, the size of the second timetable when the user wears the spectacle lens may be adjusted by additionally reflecting the refractive power of the spectacle lens and the distance between the vertices of the spectacle lens and the eye.

When the user wears the spectacle lens, the second timetable size adjustment equation is as shown in Equation 4 below.

<Equation 4>

Size of second time = size of first time X (1 / (1 + l ₁ * D ₁ ') X (1 / (1 + l ₂ * D ₂ ')

l ₁ is the distance between the vertex of the lens and the eye, l ₂ is the distance between the vertex of the eyeglass and the eye, D ₁ 'is the refractive power of the lens and D ₂ ' is the refractive power of the lens.

As described above, when the size of the target is adjusted to the size of the first target, and the size of the first target is adjusted to the size of the second target, by adjusting the size of the target according to the distance and the size of the target by the lens magnification, According to the user's eyesight or the user's eye condition, the size of the adjustment force measurement target is kept constant when the user sees it, so that there is an effect of accurate adjustment power measurement.

In addition, the control method of measuring the adjustment of the eye with improved accuracy according to an embodiment of the present invention, the control unit may further include the step of correcting the brightness of the display, for a detailed description refer to the description of FIGS. .

2 is a view for explaining a method of measuring the adjustment force of the eye for correcting the influence of the brightness on the display according to an embodiment of the present invention.

Referring to FIG. 2, the method of measuring eye adjustment force with improved accuracy according to an embodiment of the present invention further includes the step of correcting, by the controller, the brightness of the display (S400).

In the step S400 of adjusting the brightness of the display by the controller, as the position of the display is moved so that the distance between the display and the user's eye becomes closer or closer, the controller adjusts the brightness of the display based on the distance between the user's eye and the display. It is.

That is, the controller may adjust the brightness of the display based on the second distance.

In the above cooperative eye movement, when the pupil is affected by the shaft or the shandong by light, the degree of the control reaction or the runaway / opening reaction may be changed at the same time. Therefore, it is necessary to measure the control power in an environment where the light is precisely controlled so that the accurate control power can be measured.

In one embodiment, the control unit corrects the brightness of the display, in which the lens device is disposed in front of the user's eyeball, so that the subsidiary lens in the lens device is disposed in front of the user's eyeball, and there is no influence of the distance between vertices due to the subsidiary lens. When the distance between the specific eyeball and the lens device is very close to each other and the display approaches the eyeball of the user and the distance between the user's eyeball and the display is near, the controller lowers the brightness of the display according to a predetermined schedule. On the contrary, when the display moves away from the user's eyeball and the distance between the user's eyeball and the display increases, the controller increases the brightness of the display.

That is, the control unit lowers the brightness of the display when the distance between the user's eyeball and the display is closer, and increases the brightness of the display when the distance between the user's eyeball and the display is far, so that the user can always measure eyesight in an environment where the user always feels constant brightness. do.

The control unit adjusts the brightness of the display according to the distance between the user's eyeball and the display, in order to minimize the error occurring in the vision measurement when the brightness varies.

3 is an exemplary view showing a control response according to a control stimulus when there is a change in luminance and when there is no change in luminance.

Specifically, FIG. 3A illustrates a pupil response, a control stimulus, and a control response when the display screen in which the intensity of light changes is shown as a case where there is a change in luminance, and FIG. 3B illustrates a luminance. As there is no change, it shows pupil response, control stimulus and control response when only paper text is observed.

As shown in (a) of FIG. 3, when there is a change in luminance, the size of the pupil is enlarged or reduced so that the control response according to the control stimulus does not appear properly. The reason is that the pupil is enlarged when the luminance is low, and the pupil is reduced when the luminance is high, and when the pupil is enlarged, the depth of focus becomes shallow, and when the pupil is reduced, the depth of focus becomes deep. The change in the depth of focus according to the luminance change causes an error in visual acuity measurement and visual acuity training.

On the other hand, as shown in (b) of Figure 3, when there is no change in brightness, the size of the pupil is constant, so that the control response according to the control stimulus is generally matched.

Therefore, as described in FIG. 2, the controller adjusts the brightness of the display according to the distance between the user's eyeball and the display so that the user can always measure the vision under a constant brightness.

4 is a view for explaining a method of measuring the adjustment power of the eye corrected the effect of vision according to an embodiment of the present invention.

Referring to FIG. 4, the method of measuring eye adjustment power with improved accuracy of the present invention further includes the step of correcting, by the controller, the effect of vision (S500).

In step S500, the control unit corrects the influence of the eyesight, but the control unit corrects the influence of the eyesight of the user, but the influence of the eyesight of the user is corrected based on a diopter value for the eyesight of the user.

If vision is not completely corrected and myopia or high hyperopia remain, the visual acuity is measured lower than normal eyes, and the control power is measured at the time of visual acuity corrected to normal eyes. It is difficult to obtain accurate control force measurement results.

In the case of uncorrected visual acuity in measurement or training, the eyes are in a state of refraction that can see near in case of myopia, not eyesight, and clear to the point closer to the on-time state in measurement or training. Can be seen.

On the other hand, in the case of hyperopia, which is not eyesight, vision is a refraction state of the eye that can see far away.

Therefore, when measuring the control force, the effect of vision should be corrected to reflect the pure control of the on-time criteria.

In the case of myopia, the refraction state in which the focal point is in front of the retina, which subtracts the absolute value of the diopter as much as the effect of myopia on the measured control force.

In the case of hyperopia, the focal point is the refraction state behind the retina, which adds the absolute value of the diopter to the measured control force by the primitive effect.

In the case of astigmatism, a refractive state in which the focal point is not accurately formed in the retina. Myopia astigmatism is converted into data of half a diopter of astigmatism into myopia diopter value, and primitive astigmatism is data of half a diopter of astigmatism. Is converted to the raw diopter value.

When a separate wearing lens is disposed between the eyeball of the user and the subsidiary lens, the adjustment force is corrected based on the diopter value for the eyesight of the user wearing the separate wearing lens.

Separate wearing lenses include both spectacle lenses and contact lenses.

The diopter value for the user's eyesight is obtained by self-measurement using the vision measurement system using the adjustment force measurement system, or when a separate wearing lens is disposed between the user's eyeball and the subsidiary lens, the diopter value corresponding to the user's wearing lens is determined. Can be obtained by input.

The diopter value corresponding to the user's wearing lens may be inputted by the user's glasses diopter value or contact lens diopter value, and may receive the diopter value accumulated in the ophthalmology or the optician that measured the refractive error of the user's eye. In addition, the user may receive a value obtained by measuring a diopter of an eye by using a self vision analyzer.

Externally obtained diopter values, such as diopter values for the wearing lens itself, diopter values accumulated at an optician, diopter values using a self-eye measurement device, and the like, may be transmitted to a server and stored in a database.

Subsequently, when the user requests an adjustment of the adjustment force and measures the adjustment force, an externally obtained diopter value of the user who requests the adjustment measurement or training in the control unit or the application is reflected from the external server in order to correct the effect of vision.

Alternatively, externally obtained diopter values such as diopter values for the wearing lens itself, diopter values accumulated at an optician, diopter values using a self-vision device, etc. may be directly input to a user terminal or a control unit and may be immediately reflected when measuring the adjustment force. have.

5 is a view for explaining a method of measuring the adjustment force of the eye corrected the effect of the subscription lens according to an embodiment of the present invention.

Referring to FIG. 5, the method of measuring eye adjustment power with improved accuracy according to an embodiment of the present invention further includes the step of correcting, by the control unit, the influence of the subscription lens (S600).

The control unit corrects the influence of the subscription lens (S600) when the subscription lens disposed in the lens device is not a flat lens, and corrects the influence of the subscription lens based on the diopter value of the subscription lens.

The lens apparatus may include only lenses having various diopter values and do not include planar lenses for vision training.

If there is no planar lens in the lens device, a lens having refractive power is placed in front of a user's specific eyeball as a subscription lens to measure the adjustment force. In this case, accurate adjustment force can be derived only by correcting the influence of the subscription lens. .

Therefore, when the subsidiary lens is not a planar lens, the influence of the subsidiary lens is corrected based on the diopter value of the subsidiary lens, and the method of correcting the same applies in the same manner as the method for correcting the vision effect of the spectacle lens of FIG. 4. do.

The same method as the method for correcting the vision effect of the spectacle lens is applied because the subsidiary lens is placed at a certain distance in front of the user's eye with a specific diopter, thereby correcting the effect of the adjustment effect and the distance between the vertices. It is to correct the lens influence of the state.

When the subsidiary lens disposed in the lens device is a flat lens, since the effect of the adjustment effect and the distance between the vertices does not occur due to the subsidiary lens which is the flat lens, correction of the effect of the adjustment effect and the distance between the vertices need not be applied. .

Therefore, if the subsidiary lens disposed in the lens device is not a flat lens, in order to adjust the effect of the adjustment effect and the distance between the vertices, the effect of the adjustment effect and the effective refractive power must be added or subtracted to the inverse of the user's gaze distance (near point data). By calculating the control effect and the effective refractive power, respectively, the control effect is added to the near point data in the direction of the derived sign, and the effective refractive power is subtracted in the direction of the derived sign. As is the correction.

Hereinafter, a description will be given of a method for calculating the lens adjustment effect and the effective refractive power for correcting the subscription lens as if the subscription lens is not a flat lens, as if the subscription lens is a flat lens.

FIG. 6 is a view for explaining a method of measuring and training an adjustment force of an eye correcting a lens adjustment effect according to an embodiment of the present invention.

Referring to FIG. 6, the method of measuring eye adjustment force with improved accuracy according to an embodiment of the present invention further includes the step of correcting the lens adjustment effect by the controller (S700).

The control unit correcting the lens adjustment effect (S700) may be further included when a separate wearing lens is disposed between the eyeball of the user and the subscription lens.

The adjustment effect refers to the change in refraction depending on the lens being worn and the distance value viewed.

In general, when the user is nearsighted, a negative lens effect decreases as the distance to which the user is wearing the negative lens decreases, and in the case of the hyperopia, when the user wears a positive lens, the positive distance increases as the user approaches the distance. Refractive changes occur with a greater lens effect.

The adjustment effect of the subscribing lens is corrected based on the distance between vertices, the diopter value of the subscribing lens (the frequency of the subscribing lens), and the viewing distance of the user, and is corrected by Equation 5 below.

<Equation 5>

ΔA _c = 2 lD _v S

A _c is the adjustment effect correction value, l is the distance between vertices, D _v is the diopter value of the lens, and S is the inverse of the user's field of view (proximity data).

In one embodiment, only the influence of the user's subscription lens, and when not wearing a separate wearing lens, the lens adjustment effect is to correct the adjustment effect of only the subscription lens.

The method of deriving the adjustment effect of the subscribing lens only is given by Equation 6 below.

<Equation 6>

Adjustment effect = 2 X (distance between the lens and the user's eye) X (diopter of the specific lens) X (proximity data)

In another embodiment, when not only the user's subscription lens but also a separate wearing lens is worn, the lens adjustment effect correction is to correct the adjustment effect of the composite lens using the subscription lens and the wearing lens.

Therefore, the composite lens diopter values of the subscription lens and the wearing lens may be derived to correct the adjustment effect by using the synthetic lens diopter value.

The method for deriving the composite lens diopter value is based on Equation 7 below.

<Equation 7>

D₁D₂ D = D ₁ + D _2-

D ₁ D ₂

D is the refractive power of the synthetic lens, D ₁ is the refractive power of the subscription lens, D ₂ is the refractive power of the wearing lens, t is the distance between the lens midpoint, n is the refractive index of the medium between the subscription lens and the wearing lens.

In addition, the method of deriving the control effect of the composite lens of the subscription lens and the wear lens is based on the following equation (8).

<Equation 8>

Adjusting Effect = 2 X (distance between subsidiary lens and user's eye) X (composite diopter of specific subsidiary lens and spectacle lens) X (proximity data)

As described above, when the distance between the display and the subsidiary lens in the lens apparatus is moved closer or closer, and the distance between the vertices is changed, the distance between the vertices may also affect the measurement of the adjustment force.

Therefore, the effective refractive power should be calculated by correcting the influence of the distance between the vertices.

The method of calculating the effective refractive power by correcting the influence of the distance between the vertices is shown in Equation 9 below.

<Equation 9>

D _v is the refractive power of the subscribing lens, D is the effective refractive power, and may be the inverse of the calculated distance value or the amount of control stimulus, l ₁ is the distance between the lens in the original lens device and the user's eye, l ₂ is moved, The distance between the lens in the lens device and the eyeball of the user.

By correcting using the derived adjustment effect and the effective refractive power, even if the subscription lens disposed in the lens apparatus is not a flat lens, it can be corrected like a flat lens.

In addition, in another embodiment of the present invention, the method further includes calculating a user's eye control. For example, when measuring the adjustment force while adjusting the first distance, the control unit controls the adjustment of the user's eye based on the distance that the user's eye is changed from the adjusted state to the uncontrolled state or from the uncontrolled state to the adjusted state. Calculate

In addition, for example, when measuring the adjustment force by changing the refractive index of the lens disposed in front of the user's eye (for example, by changing the refractive index placed in front of the eye while varying the focus or varying the refractive index while sequentially rotating a revolver having a plurality of diopters When the refractive index is sequentially changed as the lens is placed in front of the eye, and the control unit adjusts the adjustment of the user's eye based on the refractive index of the user's eye changed from the adjusted state to the unregulated state or from the unregulated state to the adjusted state. Calculate

7 is a view for explaining a method of providing a comparison target with a measurement target in the adjustment force measurement.

FIG. 8 is a diagram for explaining a configuration of a display screen that provides a comparison schedule together with a measurement schedule.

Referring to FIG. 7, the method of measuring eye adjustment force with improved accuracy according to an embodiment of the present invention further includes a step (S800) of providing, by the controller, a comparison target along with the measurement target.

Referring to FIG. 8, a measurement target 10 and a comparison target 20 are presented together on the screen displaying the target for measuring the adjustment force.

In step S800, the control unit provides the comparison target with the measurement target, and the control unit provides the measurement target 10 to the user, and provides the comparison target 20 with the measurement target 10 that is not clearly seen.

In measuring the adjustment force, the user may be difficult to accurately determine the boundary between the adjustable range (ie, the clear range) and the non-adjustable range (ie, the non-clear range).

At this time, the control unit provides the comparison target 20 that is not clearly seen as the degree of inconsistency when it is in an uncontrollable range together with the measurement target 10.

That is, the measuring target correction step may include providing a comparison target that is not clearly seen together with the measurement target, and correcting the comparison target in the same manner as the measurement target.

By providing a comparison table 20 that can determine whether or not it is an uncontrollable range together with the measurement target 10 at the time of measuring the adjustment force, the user can clearly determine the boundary between the adjustable range and the non-adjustable range. can do.

By clearly judging the boundary between the adjustable range and the non-adjustable range, it is possible to accurately measure the adjustment force.

FIG. 9 is a diagram for describing a method of receiving a form input of a measurement target whose shape is changed at a predetermined time from a user.

Referring to FIG. 9, the method of measuring eye adjustment force with improved accuracy according to an embodiment of the present invention further includes the step of receiving, by the controller, an input in the form of a measurement target whose shape is changed every predetermined time (S900).

The measurement schedule is provided in a form whose shape is changed every predetermined time.

The measurement target is provided as a form whose shape is changed every predetermined time in order to eliminate the afterimage effect of the measurement target.

When approaching a measurement target (ie, an object) from a distance, the measurement target is not visible until the lens is no longer thickened by the control muscles.

At the point where the measurement target is not visible, the user should be able to accurately determine the corresponding boundary of the invisible point.When entering the invisible range from the visible range, the measurement target is displayed as the afterimage of the existing measurement target remains. There is a problem in that the boundary between the range and the invisible range cannot be measured accurately.

Therefore, in order to remove the afterimage effect of the measurement target, the measurement target is changed every predetermined time and provided to the user, so that the boundary between the visible and invisible ranges of the measurement target can be accurately measured.

In addition, the measurement target is provided as a form whose shape is changed every predetermined time to induce training concentration.

If the user performs the measurement or training in a state of not focusing on the control force measurement (or control power training), there is a problem that the focus is blurred and the target cannot be accurately identified.

Therefore, in order to induce training concentration, the measurement target is provided as a changed form of shape at a predetermined time, and not merely provided, but the user receives input of the changed measurement form in a predetermined shape at a predetermined time. Will allow you to continue to focus on your control.

To this end, the controller may receive an input in the form of a measurement schedule whose shape is changed every predetermined time as reception of whether the changed measurement schedule is confirmed by the user.

FIG. 10 is a diagram for describing a method of providing an adjustment result of an eye to a user.

Referring to FIG. 10, the method of measuring eye adjustment power with improved accuracy according to an embodiment of the present invention further includes a step (S1000) of providing, by the controller, a result of eye adjustment power to the user.

In operation S1000, the control unit provides the user with the result of measuring the adjustment of the eye, and the result of measuring the adjustment of the eye is provided as the proximity point of the control ability age and the specified range, which can be identified as an objective index.

If a general value is presented as a result of the adjustment force measurement, a user who is not an expert has a problem that it is difficult to determine how much the result of the adjustment force.

Therefore, the results of the control measures are presented as the control age according to the mean of each age, and the proximity distance in the specified range is presented.

It presents the results of adjustment as age and proximity distance, so that the necessity of training of adjustment can be judged.

11 is a diagram for describing a method of receiving input of feedback from a user.

Referring to FIG. 11, the method of measuring eye adjustment force with improved accuracy according to an embodiment of the present invention further includes a step of receiving, by the controller, an input of feedback (S1100).

In operation S1100, the control unit receives an input of feedback, and receives an input of feedback at a boundary point between an adjustable range and an non-adjustable range from the user.

Accurate adjustment can be measured by receiving input from the user at the boundary between the adjustable range and the non-adjustable range.

The feedback is input by at least one of the input on the motion, the sensor or the user terminal. As the sensor, an infrared sensor and a microwave sensor can be used.

As the motion type, a feedback input method using a motion at a corresponding position is included, including a hold method and a method of moving a device in a direction different from the moving direction.

As a method of directly inputting on a user terminal, all methods of directly inputting on a user terminal at a corresponding position are included, including a method of inputting using a touch operation, a method of dragging on a user terminal, and the like. do.

12 and 13 are diagrams for explaining a method of providing an adjustment force measurement progress state.

Referring to FIG. 12, according to an embodiment of the present disclosure, a method of measuring an adjustment of an eye having improved accuracy may include: a control unit configured to adjust an adjustment force measurement progress state when the adjustment force measuring system includes a user terminal including a lens device and a display; It further includes the step of displaying and providing on the terminal (S1200).

The adjustment force measurement progress state is provided by displaying the position recognized by the distance sensor disposed in the adjustment force measurement system on the user terminal.

Referring to FIG. 13, the screen for providing the adjustment force measurement progress state indicating the distance between the user's eyeball and the user terminal on the screen includes a near-field image 30, a far-field image 40, an adjustment force distance measurement image 50, and a current distance position. Includes an image 60.

The adjustment force measuring distance image 50 is presented within the measurement distance range of the near point and the origin, and is provided to adjust the current distance position within the distance range.

The current street location image 40 is movable. Therefore, when the user places the lens device in front of the eyeball and moves the user terminal or moves the subsidiary lens in the lens device while the user terminal is fixed, the lens device and the user terminal or the user's eye and the user terminal Depending on the distance, the current distance position image 40 may be presented as being within the range of the adjustable force measurement fit distance image 30 or may be presented outside the range of the adjustable force measurement fit distance image 30.

In an embodiment, when the distance between the user's eyeball and the user terminal or the distance between the lens and the user terminal in the lens device is closer than the adjustment force measuring distance range, the current distance position image 40 may be the adjustment force measuring distance image 30. Is presented closer to the near field image 10 than within the range of.

In another embodiment, when the distance between the lens device and the user terminal or the distance between the lens and the user terminal in the lens device is farther than the adjustment force measuring distance range, the current distance position image 40 may be the adjustment force measuring distance image 30. Is presented closer to the far image 20 than within the range of.

Should the user extend the user terminal by extending his / her arm through the real-time distance image? Should the user move his / her terminal by folding his / her arm further? Should the user move the subscription lens closer to the user's eyeball? You can determine if you need to move further away from it.

According to an embodiment of the present invention, the method of measuring and training the adjustment ability of eyes with improved accuracy may simultaneously measure the adjustment power by sensing the control power of both eyes.

In one embodiment, when the lens device in the adjustment force measuring system is capable of changing the lens of the revolver, further comprising a prism lens that can be superimposed on the lens device, by correcting the user's comfort through the prism lens, to accurately measure the adjustment power of both eyes can do.

In another embodiment, when the subsidiary lens in the lens device is a single lens and the display is integrally formed with the lens device, the distance from the center point of the image displayed on each of the two displays when measuring the adjustment power of both eyes simultaneously is measured. By adjusting the user's comfort, it is possible to accurately measure the adjustment power of both eyes.

In another embodiment, when the subsidiary lens in the lens device is a variable focus lens, by controlling the focus of a single variable focus lens to be eccentric in the center (deviation in the center) by correcting the user's eye position to accurately measure the adjustment power of both eyes can do.

Such embodiments may be directly related to the data related to the cooperative eye movement of the eye in the case of accommodative convergence / accommodation (AC / A) or convergence accommodation / comvergence (CA / C). As such, by adjusting the influence of AC / A or CA / C and measuring the adjustment force, the adjustment force can be measured more accurately.

AC / A is a ratio of the amount of congestion that occurs reflexively at the same time as the adjustment takes place, and even if looking at the same distance, the degree required for congestion may vary depending on the distance between the pupils is an important ratio.

For example, AC / A is a ratio that can determine how much two eyes are congested when the -1.00D lens is placed in front of an eye looking at a fixed distance and the 1D adjustment is stimulated. The prism is used as a unit and the bending angle of 1 prism is the angle that occurs when the notice point of 1M front is moved 1cm.

In general, the human AC / A ratio is about 4 prism / 1 diopter to 6 prism / 1 diopter.

On the contrary, the CA / C ratio is a ratio of the degree of change in control power by stimulating congestion or approximation with a prism before the eyes.

According to one embodiment of the present invention, the method for measuring and training the eye with improved accuracy includes repeatedly moving the position of the display or moving the display of the subsidiary lens so that the distance between the display and the subsidiary lens in the lens device increases or decreases. Providing repeated stimulation training as the position is moved, wherein the control unit corrects the size of the measurement target based on the distance between the subsidiary lens in the lens apparatus and the display and the magnification of the subsidiary lens disposed in the lens apparatus. Include.

Further, in another embodiment, the method of measuring and training the eye with improved accuracy, the control unit repeatedly changes the refractive index of the subsidiary lens in the lens device and provides repetitive stimulation training.

As described above, repetitive stimulation training of the ciliary muscle may be performed by moving the position of the display or the position of the subsidiary lens, or repetitive stimulation training may be provided for the ciliary muscle by repeatedly changing the refractive index.

In other words, repetitive stimulation training is a repetitive stimulation of the ciliary muscles, which is an adjustment training or ease training.

Adjustability training is training to see the near or far distance that you want to enhance the control. The control force is a drill to make it possible to see the farthest point (ie, the origin) and the nearest point (ie, the root point) that can be clearly seen, and to contract or relax the ciliary muscle that functions as much as possible. A method of training contraction or relaxation of ciliary muscles is to give repeated stimulation to contract or relax ciliary muscles to an appropriate level depending on the visual condition of the user.

Ease of adjustment training is a quick way to focus by changing from a positive lens to a negative lens and from a negative lens to a positive lens. It is to repeatedly change the plus and minus lenses to give a repetitive stimulus.

Therefore, the repetitive stimulation of the ciliary muscles can be carried out the adjustment training and the ease training, in particular, the ease training, in one embodiment, when training using a revolver-type lens change, and the plus lens in the lens device A minus lens is included and training can be performed when changing from plus lens to minus lens and minus to plus lens.

In another embodiment, the method may further include correcting the size of the measurement target based on the changed refractive index. That is, when performing the adjustment training or ease of training by using a repetitive distance change between the display and the lens at a close distance, or when performing the adjustment training or easy control by using a repetitive refractive index change as shown in FIG. By correcting the size, there is an effect that can perform precise training.

In addition, in addition to the size correction of the target, the above-described information in the description of FIGS. 1 to 13 may be equally applied to the adjustment training or the ease training.

According to another exemplary embodiment of the present disclosure, the adjustment system of the eye with improved accuracy may further include a controller that is compatible with the adjustment force measuring system when performing the adjustment and the training in the virtual reality.

When performing the adjustment measurement and training in virtual reality, the controller may adjust the distance to the target, adjust the distance of the subscription lens, or provide feedback during the adjustment measurement or adjustment training.

The adjustment force measurement or the adjustment training result may be derived by adjusting the distance to the lens device by, in one embodiment, the lens device being placed in front of the specific eye of the user, and the arrangement position of the user terminal being moved by the user. For example, while the position of the user terminal is fixed, it may be derived by moving the subscription lens in the lens device.

As described above, when measuring and training the adjustment force using the virtual reality, when the controller is included, the controller is compatible with the user terminal, it is possible to receive input of feedback from the controller.

Other features between the lens device and the user terminal are the same as described above with reference to FIGS. 1 to 13.

The steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, in a software module executed by hardware, or by a combination thereof. The software module may be a random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any form of computer readable recording medium well known in the art.

In the above, embodiments of the present invention have been described with reference to the accompanying drawings, but those skilled in the art to which the present invention pertains may realize the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

Claims (20)

Requesting the control unit to place a subscription lens of the lens unit in front of a specific eye of the user, wherein the lens unit comprises at least one lens and configures an adjustment force measuring system together with the display and the control unit; As the first distance, which is the distance from the eyeball of the user to the display, is continuously adjusted for measuring the adjustment force, the controller corrects the size of the measurement target displayed on the display based on the first distance. step; And And calculating, by the controller, an adjustment force of the user's eye based on a distance in which the user's eye is changed from the controlled state to the uncontrolled state or changed from the uncontrolled state to the adjusted state. And training method. The method of claim 1, The display is included in the lens device to adjust the position, characterized in that the accuracy adjustment eye measurement and training method. The method of claim 1, The display is a user terminal physically separated from the lens device, The first distance is adjusted as the user moves the position of the user terminal, characterized in that the accuracy adjustment eye measurement and training method. The method of claim 3, The user terminal or the lens device includes a distance sensor, The first distance is measured in real time by the distance sensor, the accuracy adjustment eye measurement and training method of the eye. The method of claim 1, The measurement timetable correction step, And the control unit corrects the size of the measurement target by reflecting the magnification of the subscription lens disposed in front of the user's eye by the lens device. The method of claim 1, And adjusting, by the controller, the brightness of the display based on the first distance. Requesting the control unit to place a subscription lens of the lens unit in front of a specific eye of the user, wherein the lens unit comprises at least one lens and configures an adjustment force measuring system together with the display and the control unit; A measurement target correction step of correcting the size of the measurement target based on the changed refractive index by changing the refractive index of the subscription lens disposed in front of the user's eye for measuring the adjusting power; And And calculating, by the controller, an adjustment force of the user's eye based on the refractive index of the eye of the user being changed from the controlled state to the uncontrolled state or from the uncontrolled state to the controlled state. And training method. The method of claim 7, wherein Changing the refractive index of the subscription lens, Wherein the at least one lens is configured in a revolver manner to change the refractive index by changing the subscription lens in a revolver manner and the subscription lens is configured of a variable focus lens to change the refractive index by changing the focus, How to measure and train your eyes for improved accuracy. The method according to any one of claims 1 to 8, Wherein the control unit corrects the effect of the user's vision, the effect of the user's vision is corrected based on the diopter value for the user's vision, further comprising the step of correcting the effect of vision, How to measure and train your eyes for improved accuracy. The method according to any one of claims 1 to 6, The control unit may further include an effect correction step of correcting the influence of the subscribing lens based on the diopter value of the subscribing lens when the subscribing lens disposed on the lens apparatus is not a planar lens. How to measure and train your eyes for improved accuracy. The method of claim 10, The control unit corrects the adjustment effect of the subscription lens disposed in the lens device, the adjustment effect of the subscription lens is to correct based on the distance between the vertices, the frequency of the subscription lens and the user's gaze distance, lens adjustment effect Further comprising a correction step, How to measure and train your eyes for improved accuracy. The method according to any one of claims 1 to 8, The measurement target correction step, A method for measuring and training the eye with improved accuracy, comprising: providing a comparison target that is not clearly visible together with the measurement target, and correcting the comparison target in the same manner as the measurement target. The method of claim 9, When a separate wearing lens is disposed between the user's eyeball and the subscription lens, Correcting the influence of vision, To correct based on the diopter value for the eyesight of the user wearing a separate wearing lens, How to measure and train your eyes for improved accuracy. The method of claim 11, When a separate wearing lens is disposed between the user's eyeball and the subscription lens, The lens adjustment effect correction step, To correct the adjustment effect of the synthetic lens using the subscription lens and the wearing lens, How to measure and train your eyes for improved accuracy. The method of claim 9, The diopter value for the user's vision is Obtained from the user's input, or When the user wears a separate wearing lens, the user acquires by receiving a diopter value corresponding to the wearing lens of the user. How to measure and train your eyes for improved accuracy. The method according to any one of claims 1 to 8, The measurement target, Characterized in that the shape is changed in every predetermined time, characterized in that, How to measure and train your eyes for improved accuracy. The method of claim 16, The control unit further comprises the step of receiving an input of the measurement target form changed in shape at a predetermined time as the reception of whether or not to check the changed measurement schedule from the user, How to measure and train your eyes for improved accuracy. The method of claim 4, wherein When the display is configured separately from the lens device and included in the user terminal, And displaying, by the controller, a progress state of the adjustment force measurement on the user terminal, The progress state of the adjustment force measurement, It is provided by displaying the position recognized by the distance sensor on the user terminal, How to measure and train your eyes for improved accuracy. The method according to any one of claims 1 to 8, The control unit repeatedly changing the refractive index of the subscribing lens in the lens device and providing repeat stimulation training. How to measure and train your eyes for improved accuracy. A computer-aided measurement and training computer program with improved accuracy, stored in a medium for carrying out the method of any one of claims 1 to 8 in combination with a control which is hardware.

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