FIELD OF THE INVENTION

The disclosure relates to a vision recovery training device for preventing an error in settings of an initial position when a diopter is changed.

BACKGROUND OF THE INVENTION

A structure that a human eye has is a kind of convex lens, in which external light enters a magnifying lens, i.e. a cornea and a crystalline lens of the eye, is focused as an inverted image on a retina at a focal distance by refraction in the magnifying lens, is reflected from the retina serving as a mirror, and passes through the magnifying lens, i.e. the crystalline lens and the cornea while changing the inverted image into an magnified erect image, thereby making a brain recognize the same magnified erect thing as that of the outside world visible to the eyes.

In this case, by contraction and relaxation of a ciliary body connected to the crystalline lens, the crystalline lens becomes thicker when looking closely and has normal thickness when looking far away. If someone reads a book or watches TV at a close distance over a long period of time or frequently and repeatedly, his/her crystalline lens being thick is difficult to return to its original state and thus s/he may become near-sighted. Such a myopic patient wears glasses with concave lenses to compensate for the increased thickness of the crystalline lens and correct his/her eyesight. However, the glasses make the myopic patient see things well, but lower his/her restorative abilities to thereby cause a problem that the crystalline lens being thick becomes hardened.

Meanwhile, a vision-information processing function refers to a process for information between eyes and a brain, which is also called a vision function. In other words, the vision-information processing function refers to that information input based on senses of touch, smell and hearing and information input based on sensed of sight are quickly sent to a brain and the brain synthetically interprets such information. With this vision-information processing function, it is possible to perceive a sense of distance, a sense of speed, a sense of three dimension, etc.

The vision-information processing function is almost irrelevant to whether eyesight is good or poor. When there is a problem with the vision-information processing function, it may be difficult to have sports or leports activities, read a book, maintain attention and concentration, or write an article. Therefore, such problems may be followed by reading disabilities, dyslexia, attention deficit disorder, learning disabilities, writing disabilities, social disabilities, or etc.

The problem with the vision-information processing function may arise when visual perception is excessively used (for doing homework, reading a book, using a computer, watching TV, etc.) while eyeballs are growing. Such problems with the vision-information processing function may include binocular dysfunction, control disorder, etc.

The binocular dysfunction may be caused when extraocular muscles supporting a pupil do not normally function, and the control disorder may be caused when the contraction and relaxation for the crystalline lens are abnormally made.

Accordingly, there have been proposed vision recovery training device as a vision improving device, in which the muscles are exercised and strengthened by changing a diopter of a lens arranged in front of eyeballs.

However, a conventional vision recovery training device has a problem of malfunctioning due to an error in settings of an initial position value for a diopter lens while rotation is made using various driving motors to change the diopter.

SUMMARY OF THE INVENTION

The disclosure is conceived to solve the foregoing conventional problems, and the object of the disclosure is to provide a vision recovery training device, which can readily enhance each individual vision of wearers without separately preparing glasses adjusted for their vision.

According to an aspect of the disclosure, there is provided a vision recovery training device, which includes a housing formed to be worn on a face around the eyes, a pair of rotation modules mounted to an inside of the housing, and a lens provided in each rotation module, at least one of the rotation modules including: a rotation disc; a magnetic body inserted in the rotation disc; and a sensor module provided in the housing at a radial position corresponding to the magnetic body.

According to an embodiment, the rotation disc may be formed with an insertion hole, and the magnetic body may be coupled to the insertion hole.

According to an embodiment, the device may further include a plurality of projections protruding from an inner circumferential surface of the insertion hole along a lengthwise direction toward a center of the insertion hole radially.

According to an embodiment, the rotation disc may be rotatably supported on a rotary shaft formed in a support frame, and a plurality of lenses different in a refractive index may be radially arranged with respect to the rotary shaft and spaced apart at a predetermined distance.

According to an embodiment, the rotation disc may be formed with an insertion hole corresponding to at least one lens among the plurality of lenses, and the magnetic body is coupled to the insertion hole.

According to an embodiment, more than at least one of magnetic bodies provided in the insertion hole of the rotation disc may be different in magnetism, and the sensor module may be configured to identify a position corresponding to each lens.

According to an embodiment, the magnetic body may be shaped like a column having a predetermined length, in which N and S poles are at least one or more times alternately arranged along a circumference of a hollow of the column, and coaxially coupled to the inner circumference of the rotary shaft.

According to an embodiment, the sensor module may include a Hall sensor, and the Hall sensor may be arranged to be spaced apart from the magnetic body in a radial direction or an axial direction.

According to an embodiment of the disclosure, it is possible to prevent an error in settings of an initial position when a diopter is changed.

Further, there is an effect on readily enhancing each individual vision of wearers without additional glasses adjusted for their vision.

It will be understood that the effects of the disclosure are not limited to the foregoing effects, but include all effects deducible from the features disclosed in the detailed description or appended claims.

