Intelligent assisted vision glasses

A pair of intelligent assisted vision glasses includes an eyeglass body, the left and right frames respectively having two accommodation rooms with transparent liquid, a set of left eye lenses and a set of right eye lenses respectively in the left and right frames, a microelectromechanical component, a sensor electrically connected with the microelectromechanical component for detecting the axial length of eyeball and the curvature of the cornea to generate control signal, and a pair of push units respectively arranged at upper ends of the left frame and a pair of push units respectively arranged at upper ends of the right frame and each pair of push units is electrically connected with the microelectromechanical component. The microelectromechanical component controls the push units to change the curvature of the set of left and/or right eye lenses according to the controlling signal. The flow volume of the transparent liquid in the voids between the set of left and/or right eye lenses is changed corresponding to the curvature of the set of left and/or right eye lenses.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to China Patent Application No. 201710365928.3, filed May 22, 2017, the content of which are hereby incorporated by reference in their entirety.

FIELD OF THE INVENTION

The present invention relates to a pair of intelligent eyeglasses, and more particularly to a pair of intelligent eyeglasses adaptive to variation of user's near-sighted diopter by adjusting curvature of eyeglass lenses rather than replacing the eyeglass lenses.

BACKGROUND OF THE INVENTION

Most people acquire information with eyes. Once something happen for vision of eye, such as myopia, presbyopic, hyperopia and/or astigmatism, the vision correction is implemented by laser surgery. However, wearing a pair of eyeglasses with specific diopter is popular for most people.

There are various purposes for eyeglasses on market, such as optical eyeglasses, sunglasses, sports glasses or protective eyewear, and so on. Furthermore, lenses for eyeglasses can be divided into nearsighted lens or presbyopic lens, etc. Generally, once user's vision or eye situation changes, such as nearsighted, farsighted or astigmatism diopter increases, user often replace whole pair of wearing eyeglasses that meets user's requirement no longer and possibly causes eye fatigue. However, cost of eyeglasses replacement can cause a burden on user. Furthermore, owning plural pairs of eyeglasses of different diopters or functions is not convenient to user and cause another burden on user, too.

SUMMARY OF THE INVENTION

According to above drawbacks in the conventional prior art, the present invention provides a pair of intelligent assisted vision glasses to adjust moderate diopter of lens adaptive to the changing of user's eyes condition rather than replace a pair of whole eyeglasses or eyeglass lenses.

It is another objective of the invention is to provide a pair of intelligent assisted vision glasses equipped with a sensor is able to detect axial length of user's eye and curvature of user's cornea and further to adjust curvature of lens according to detected data. Consequently, use may still see everything clearly with the intelligent assisted vision glasses even the axial length of user's eye and the curvature of user's cornea vary.

It is an objective of the invention is to provide a pair of intelligent assisted vision glasses equipped with a vision identification device is able to detect convex degree and convex period of lens of user's eyeball, to determine whether user's eyes are overused or not, and to smartly remind use of moderate rest for eyes.

According to above objectives, the present invention provides a pair of intelligent assisted vision glasses, which includes an eyeglass body, a left frame, a right frame and temples pivotally coupled to the left and right frames, an accommodation room with transparent liquid respectively at upper inner side and lower inner side of the left and right frames; a set of left eye lenses engaged with the left frame and a set of right eye lenses engaged with the right frame, each of both the set of left eye lenses and the set of right eye lenses provided with a front lens and a rear lens, a void formed between the front lens and the rear lens and connected with the accommodation room; a microelectromechanical component positioned on the eyeglass body; a sensor positioned on the eyeglass body, electrically coupled to the microelectromechanical component, and configured to detect axial convex lengths and curvatures of corneas for the user's eyeballs and generate a control signal; and at least a pair of push units respectively arranged at upper ends of the left frame and the right frame and electrically coupled to the microelectromechanical component, wherein the microelectromechanical component controls the push units with the control signal, curvature of the set of left eye lenses and/or the set of right eye lenses is changed by the controlled push units, and flowing amount of the transparent liquid in the void within the set of left eye lenses and/or the set of right eye lenses varies corresponding to the changed curvature.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Near-sighted vision is determined by four measurement ways as follows. The curvature of cornea measured by keratometer or ophthalmomter is the first way for vision measurement. The formation of nearsighted vision is due to imaging at front of retina because of changing in curvature of cornea. The diopter measurement of human lens is the second way. A regular human lens is like a convex lens with 1200 diopter put into human eyeball. Sudden increase on diopter of nearsighted vision is mainly due to the increase of human lens diopter caused by nuclear cataract. However, so far it is difficult to measure the diopter of human lens by any equipment.

Adjusting the capacity of focusing is the third measurable way for vision. People can read book, cell phone and plate computer in a short distance with the help of ciliary muscle contraction as a convex lens. The over contraction of ciliary muscle may cause pseudomyopia, but pseudomyopia will not be discussed in following embodiments. Measurement on axial length of eye is the fourth way. When the axial length of eye gets long, the imaging will fall at front of retina to form near-sighted vision. In the present invention, one or more sensors may detect convex length and curvature of eyeball for measurement of axial length. The curvature of eyeglass lens may be adjusted in response to the variation of axial length of eye, which may be regarded as adjustment on near-sighted eyeglasses with convex lenses. Thus, with changing in the convex length and the curvature of eyeball, the curvature of lenses in the present invention is adjustable adaptive to user's vision variation and matched with user's nearsighted diopter, so that user may not replace her/his near-sighted eyeglasses of different diopter.

First, please refer toFIG. 1AandFIG. 1B.FIG. 1AandFIG. 1Bare respective a front view and a rear view diagram of illustrating an intelligent assisted vision glasses according to the present invention. InFIG. 1AandFIG. 1B, an intelligent assisted vision glasses includes an eyeglass body10equipped with a left frame102, a right frame104, a pair of nosepads106, a left temple108, and a right temple110. The left temple108and the right temple110are pivotally or hinged coupled to the left frame102and the right frame104, respectively. The pair of nosepads106is disposed between the left frame102and the right frame104and proximal to a user's nose position. It is noted that the shapes and materials of the left frame102, the right frame104, the pair of nosepads106, the left temple108, and the right temple110are neither limited nor discussed in the present invention.

FIG. 2is a cross-sectional view of illustrating the engagement of a set of left eye lenses and a left frame of a pair of intelligent assisted vision glasses shown inFIG. 1A andFIG. 1Baccording to the present invention. It is understood that the structures of the set of left eye lenses20are same as the ones of the set of right eye lenses (not shown), thus an engagement of frame and lenses in following embodiments is illustrated with one side assembly (the left frame102and the set of left eye lenses20) rather than the other side assembly (right frame104and the set of right eye lenses).

InFIG. 2, the set of left eye lenses20includes a front lens202and a rear lens204. It is understood that the rear lens204is a lens proximal to user's face or eyeball, and the front lens202is a lens facing outwards. An upper end and a lower end of the front lens202as well as the ones of the rear lens204in the set of left eye lenses20, are engaged with an upper end and a lower end of the left frame102of the eyeglass body10, respectively. Moreover, there is a void203between the front lens202and the rear lens204.

Furthermore, in an embodiment of the present invention, the lens or lenses in the set of left eye lenses20and the set of right eye lenses (not shown) is made of graphene because of its flexibility, transparent with optical absorption of about 2.3% and low cost. The flexibility and low optical absorption of graphene are suitable for not only energy, mechanic, medical, optoelectronic or semiconductor applications but also consumer product application, as well as the lenses in the pair of intelligent assisted vision glasses in the present invention.

Next, please refer toFIG. 1AandFIG. 1B,FIG. 3andFIG. 4.FIG. 3is a structure of illustrating a push unit on a frame.FIG. 4is a block diagram illustrating microelectromechanical components, a sensor, a push unit and a set of left eye lenses. InFIG. 3andFIG. 4, a microelectromechanical component30is electrically connected to a sensor40and a push unit50and configured to control the sensor40for generating control signal in response to the detection of a change in a length of human eyeball. The push unit50is controlled by the control signal to act on the set of left eye lenses20(and/or the set of right eye lenses) so as to make the curvature of the set of left eye lenses20(and/or the set of right eye lenses) fit the change such as a convex length or a curvature of eyeball.

The microelectromechanical component30may be arranged at any suitable position on the eyeglass body10. In a preferred example, the microelectromechanical component30may be positioned within the left frame102, the right frame104, the left temple108or the right temple110, but not limited in the present invention.

The sensor40may detect the convex length and the curvature of human eyeball. Considering a detection range for human eyeball picked by a camera of the sensor40(not shown), the sensor40is arranged between the left frame102and the right frame104and proximal to the position of the pair of nosepads106. Alternatively, there are the sensors40respectively arranged at the left frame102and the right frame104(as shown inFIG. 1AandFIG. 1B). It is noted that the sensor40may detect the convex lengths and the curvatures of human right and left eyeballs. Thus, it is understood that the positions and numbers of the sensors40are adaptive to detect the whole right and left eyeballs. In the embodiments of the present invention, the sensor40may be an IR sensor or visual identification apparatus.

Next, push units50,52are deposited at the inner side102a(proximal to human face) and the outer side102b(distal to human face) of the upper end of the left frame102. The push unit50includes a stand502and a wall504, and the push unit52includes a stand522and a wall524. The stand502is pivotally coupled to the inner side102aof the upper end of the left frame102. One terminal5041of the wall504is pivotally coupled to the stand502, while the other end5043of the wall504proximal to the set of left eye lenses20is attached to the rear lens204of the set of left eye lenses20. It is also said that with the wall504, the push unit50at the inner side102a(proximal to human face) of the upper end of the left frame102touches the rear lens204of the set of left eye lenses20, while with the wall524, the push unit52at the outer side102b(distal to human face) of the upper end of the left frame102touches the front lens202of the set of left eye lenses20.

In other embodiments, the push units50,52may be simultaneously arranged at the inner side102aand the outer side102bof the upper end of the left frame102, respectively. In addition to that situation aforementioned, there are four push units50,52,54and56respectively deposited at the four sides of the left frame102for precisely adjusting the curvatures of the set of left eye lenses20to fit the convex length and the curvature of human eyeball. The four sides include the inner side102aand the outer side102bof the upper end of the left frame102, and an inner side102cand an outer102dof the lower end of the left frame102. The four push units50,52,54and56may precisely adjust the curvatures of the front lens202and the rear lens204for the whole set of left eye lenses20. Similarly, shown inFIG. 3, push units54,56include stands542,562and walls544,564, respectively, and have functions same as the ones of the push units50,52to not repeat to describe here. Moreover, the push units50,52,54and56with respect to the right frame104and the set of right eye lenses are similar to the left frame102and the set of left eye lenses20. The push units50,52may be simultaneously arranged at an inner side104aand an outer side104bof the upper end of the right frame104, respectively. The other push units54,56may be simultaneously arranged at an inner side104cand an outer104dof the lower end of the right frame104, shown inFIG. 1AandFIG. 1B.

Moreover, the left frame102may include an accommodation room60with transparent liquid602in a frame body of the left frame102. Two accommodation rooms60are arranged respectively at upper inner sides102aand lower inner sides102cof the left frame102and another two accommodation rooms60are arranged respectively at upper inner sides104aand lower inner sides104cof the right frame104, shown in FIG.1A,FIG. 1B, andFIG. 3. In the embodiment, the refractive index of the transparent liquid602is similar as the ones of graphene, such as 2.6-3.0. The transparent liquid602is nonvolatile, toxic-free, and non-corrosive inert solution, such as silicon dioxide solution, phenyl silicone oil or titanium dioxide solution, to ensure there is no chemical reaction between the transparent liquid602and the lenses (202,204) made of graphene. Besides, there is no difference in refractive indices of the transparent liquid602and the lenses (202,204). The difference in refractive indices may make human eyes fail in focusing or normally sighting because of blurred vision.

Next, please refer toFIG. 5andFIG. 4together.FIG. 5is a flow chart of illustrating a pair of intelligent assisted vision glasses acting on the adjustment of curvatures and thicknesses of sets of lenses according to user's vision situation. InFIG. 5, step70: the pair of intelligent assisted vision glasses is turned on automatically when a user wears it. In step70, its turn-on time may be preset about 2-5 seconds or others set by the user. Step72: the sensor automatically detects the axial length of user's eye and the curvature of user's cornea. In step72, after the pair of intelligent assisted vision glasses turns on and the microelectromechanical component30is ready, the sensor20on the eyeglass body10detects the axial lengths of eyes and the curvatures of user's corneas for user's left and right eyeballs, and then the detected results is/are returned to the microelectromechanical component30for generating control signal. Step74: whether the curvature of the set of left eye lenses and/or the set of right eye lenses is adjusted to meet the user's present vision situation is determined. In step74, the situation aforementioned is judged by the microelectromechanical component30according to the sensed axial lengths of the eyes and the sensed curvatures of corneas. Step78will proceed provided that the axial length of eye and the curvature of cornea for the left and/or right eyeball change. Step78: the curvatures of the set of left eye lenses and/or the set of right eye lenses are adjusted to meet the user's present vision situation. In step78, the microelectromechanical component30controls the push units50,52,54and56according to the control signal to further adjust the curvatures of the lenses of the set of left eye lenses and/or the set of right eye lenses. Step76will proceed provided that it is not necessary to adjust the curvatures of the set of left eye lenses and/or the set of right eye lenses. In step76, the curvatures of the set of left eye lenses and/or the set of right eye lenses are remained without adjustment.

Next, how the pair of intelligent assisted vision glasses does adjustments on curvatures and thickness of lenses adaptive to user's vision condition according to the flow chart inFIG. 5is illustrated.FIG. 6is a schematic of illustrating a pair of intelligent assisted vision glasses acting on the adjustment of curvatures and thicknesses of sets of lenses according to user's vision situation. InFIG. 6, when a user wears the pair of intelligent assisted vision glasses of the present invention, the pair of intelligent assisted vision glasses may be turned on by the user or automatically by self-sensing. Next, the sensor40controlled by a microelectromechanical component30senses the axial lengths of eyes and the curvatures of corneas for user's left and right eyeballs. For the pair of intelligent assisted vision glasses, the front lens202and the rear lens204of the set of left eye lenses20are attached tightly to each other, as well as the front lens and the rear lens of the set of right eye lenses. The front lens and the rear lens are directly attached or mounted tightly without anything intervened between them rather than by using adhesive agent. It is noted that the separation configuration for the front lens202and the rear lens204of the set of left eye lenses20shown in drawings is just for illustrating the two lenses mad of graphene of the set of left eye lenses20. In practice, the void between the two lenses is not as big as one shown in drawings.

Compared with the axial lengths of eyes and the curvatures of corneas for normal eyeballs without near-sightness, in the case that the axial lengths of eyes and the curvatures of corneas for the user's left and right eyeballs change is sensed by the sensor20, the microelectromechanical component30may generate the control signal according to the variation of the axial lengths of eyes and the curvatures of corneas for the user's left and right eyeballs. With the control signal, the microelectromechanical component30controls the push units50,52,54and56on the left frame102and the right frame104to drive the stands502,522,542and562. Then the driven stands502,522,542and562move forwards to push the walls504,524,544and564, respectively. The pushed walls504,524,544and564move towards the direction of the lenses to press the lenses closer, or release the front lens202and rear lens204so that the front lens202and rear lens204move backwards to separate each other. The separating movement of the front lens202and the rear lens204from the state of tight attachment can result in the generation of void203between them, and the void203connects with an accommodation room60full of transparent liquid602. To avoid the mismatching of refractive indexes between air in the void203and graphene to make the user's eyes uncomfortable, the accommodation room60may be opened by the microelectromechanical component30to let the transparent liquid602flow from the accommodation room60to the void203between the front lens202and the rear lens204. Consequently, the thickness enhancement of lenses is achieved by filling up the void203with the transparent liquid602that has similar refractive index as the lenses. While the front lens202and the rear lens204are pressed to move towards each other, the thickness of the void203between them will reduce and the transparent liquid602in the void203will flow back to the accommodation room60.

In the embodiments of the present invention, provided that little bias from normal vision for the axial length of eye and the curvature of cornea for eyeball (slight nearsighted) is sensed by the sensor40, there is also little adjustment on the lenses by the microelectromechanical component30for the push units50,52,54and56, such as little-changing curvatures for the front lens202and the rear lens204as shown inFIG. 6. However, provided that more serious bias from normal vision for the axial length of eye and the curvature of cornea for eyeball (serious near-sighted) is sensed by the sensor40, the front lens202and the rear lens204will be controlled by the push units50,52,54and56to have the bigger curvatures, and the void203between the front lens202and the rear lens204becomes bigger, too. Consequently, the thickness enhancement of lenses is achieved because the transparent liquid602flows from the accommodation room60to the void203between the rear lens204and the front lens202, shown inFIG. 7.

Moreover, the pair of intelligent assisted vision glasses of the present invention further includes reminder function to remind user of moderate rest for eyes in overusing, shown inFIG. 4. InFIG. 4, the pair of intelligent assisted vision glasses further includes a vision identification device80and an alarm device90. The microelectromechanical component30electrically couples the vision identification device80and the alarm device90, respectively, and the vision identification device80and the alarm device90are respectively arranged within the eyeglass body10(as shown inFIG. 1AandFIG. 1B).

Generally, once user reads books or watches television, cellar phone or plate computer with a short distance for a long period, the lens of eyeball will be more and more convex with increase of time in use of eye. When a user wears the pair of intelligent assisted vision glasses, the vision identification device80may detect the convex degree of the lens of user's eyeball first. Once the detected convex degree of the lens of user's eyeball bigger than the ones at the beginning of detection is detected, the vision identification device80transfers detected convex variation and the period of convex for the lens of user's eyeball to the microelectromechanical component30, and then the microelectromechanical component30may remind the use of moderate rest for eye fatigue by transferring alarm signal to the alarm device90. In the embodiments, the alarm device90may be LED light, buzzer or a shake device. Accordingly, the intelligent assisted vision glasses may remind user of moderate rest to avoid fatigue, overuse, nearsighted condition, diopter increase or disease of the eye by flash light, audio or shake signal.

Alternatively, in other embodiments of the present invention, to avoid eye injure by UV light or sunlight radiation, the surface of the lenses made of graphene may be coated a layer of anti-UV coating for eye protection.

Accordingly, the pair of intelligent assisted vision glasses of the present invention may dynamically adjust the curvatures of the lenses in response to the detected axial length of eye and curvature of cornea for user's eyeball by the sensor to meet user's eye condition like a regular near-sighted eye glasses.