TW201520643A - Visual axis adjust system of controlling a liquid-crystal by detecting a pupil position - Google Patents

Abstract

The present invention provides a visual axis adjust system of controlling a liquid-crystal by detecting a pupil position, and the system includes at least one curved lens, each of which connect a curved prism respectively, said curved lens and curved prisms couple with an electric actuator; at least one pupil detection unit for detecting at least one pupil position; and a sensor for detecting an environment state. The present invention define the visual axis by analyzing said pupil position, detect a distance between an object and the electric actuation or a dip of the electric actuation to adjust the curvature radius of the electric actuator, let light through said curved prism parallel the optical axis of it, and correct the focal length of the curved lens. Whatever a user observe near or far, said electric actuator and curved prism can make the visual axis parallel the optical axis of the curved prism so as to reduce eye fatigue, correct vision, and decrease the chance of dizziness caused by changing the focal length. It can also use in all kinds of situations such as overlooking, reading, exercising so as to upgrade the practicality and convenience.

Description

Pupil position detection control liquid crystal visual axis adjustment system

The invention provides a visual axis adjustment system for a pupil position detection and control liquid crystal, in particular, a method for detecting an environmental state such that a visual axis of a user's eyes is parallel to an optical axis of a curved surface.

According to the glasses, glasses have been widely used in daily life, such as: improving vision, eye protection, visual effects and decoration. In terms of improving vision, the ratio of myopia has gradually increased due to the long-term reading and use of mobile phones or computers by modern people. And as the age grows, it is difficult for the crystal crystal to adjust its focal length, which in turn affects vision. Nowadays it is called presbyopia. Therefore, if myopia is combined with presbyopia, it will not be able to clearly observe the distance.

Therefore, a multifocal lens is provided which is formed by forming a first lens and a second lens in a lens, wherein the first lens and the second lens exhibit different focal lengths, and the first lens is disposed on the lens. The second lens is disposed at a lower end of the lens; the lower lens can be focused by the second lens when the head is read, and the user is focused by the first lens when the distance is observed.

The position of the first lens and the second lens of the multifocal glasses is fixed, and when the user looks at the camera, the first lens and the second lens will have a tortuous shape for the eyes, which will affect the comfort of the eyes, and is easy. Causes dizziness; while reading, the eye can only be viewed in the direction of the second lens, making the eye quite prone to fatigue. After reading, if it is immediately viewed through the first lens, it is easy for the user to cause dizziness. In addition, the user does not only look down when reading, and the focal lengths of the first lens and the second lens are fixed, and for a certain distance, the user cannot clearly observe.

An electro-optical lens having an integrated component, such as a first optical lens, an electrical active refractive matrix, and a conductor connected to the electrical active matrix, is provided. The first optical lens has a first outer surface, a second outer surface and an outer edge; a frame having a lens holder and a shank; an optical lens coupled to the lens holder, the optical lens An electrical active refractive matrix is included; a controller coupled to the electrical active refractive matrix; and a range finder connected to the controller, or a small microgyrometer or micro in the shank of the frame An accelerator instrument; by which, the distance meter can be adjusted by the range finder, or the microgyro or the microaccelerator can be triggered by a small and rapid shaking or twisting of the head. The micro-accelerator turns the switch, sets the switch position, and changes the focal length of the active lens to the correct degree.

A hybrid electric actuator lens as described in Chinese Patent Application No. 093127334, which shows an embodiment of an electrical concentric circuit of an electrically actuated material that can be used in an electrically actuated lens, is shown in FIG. The concentric loop can be an electrode for applying a voltage to the lens in the electrically actuated lens to form a phase overlap, ie, repeating (or "overlapping") light at a plurality of locations or zones along the diameter of the electrically actuated lens. The phenomenon of phase to increase the optical efficiency of the device.

As far as myopia is concerned, the causes of myopia are many. Please refer to Figure 1 first. When looking at the binocular, the visual axes of the binoculars A ₁ and A ₂ are parallel, and the pressure on the eyeball is the smallest. , when as shown in FIG. 2, in the eyes looking at near objects, the eye to simultaneously transfer, such as when L _1, binocular visual axis A _11, A ₂₁ of the convergence α of observation distance, as viewed from the reduced When it reaches L ₂ , the convergence of the binocular visual axes A ₁₂ and A ₂₂ will be raised to β. It is obvious that the closer the observation distance is, the more the inner rectus muscle will adjust the degree of internal rotation of the eyeball, and at the same time, the ciliary muscle contraction. In the long run, it will lead to over-regulation of the convergence and produce myopia. Therefore, the conventional Chinese patent application Nos. 091100593 and 093127334 can not treat or correct myopia caused by excessive adjustment of the convergence, so its applicability is still Extremely limited.

In view of this, our inventors have devote themselves to further research on the zoom mechanism of glasses, and have begun research and development and improvement, with a better invention to solve the above problems, and have been experimentally and modified to have the present invention.

Therefore, the object of the present invention is to solve the problem that the position of the first lens and the second lens of the multifocal glasses is fixed, the imaging will be tortuous, affecting the comfort of the eyes, and easily cause dizziness; Fatigue occurs; the conventional Chinese patent applications Nos. 091100593 and 093127334 are incapable of treating or correcting myopia caused by excessive adjustment of the convergence, so the applicability is still greatly limited.

In order to achieve the above object, the inventors provide a visual axis adjustment system for a pupil position detection control liquid crystal, comprising: at least one curved lens respectively connected to a curved surface, the curved lens and the curved surface, Adjacent to an electric actuation unit, the electric actuation unit is coupled to a processing unit; at least one pupil detection unit coupled to the processing unit, the pupil detection unit detecting at least one pupil position; And a sensing unit coupled to the processing unit, the sensing unit detecting an environmental state; wherein the processing unit is configured to respectively define a visual axis by analyzing the pupil position, and the processing unit is Adjusting a radius of curvature of the electrically actuated unit according to the visual axis and the environmental state, so that a light passing through the curved surface is parallel to an optical axis of the curved surface, and adjusting a focal length of the curved lens, The viewing axis is parallel to the optical axis.

According to the above-mentioned pupil position detection control liquid crystal axis adjustment system, wherein the electric actuation unit is a liquid crystal or a polymer gel.

According to the above-mentioned pupil position detection control liquid crystal axis adjustment system, wherein the processing unit transmits a different voltage to the electric actuation unit, thereby adjusting the radius of curvature of the electric actuation unit.

According to the above-mentioned pupil position detection control liquid crystal axis adjustment system, wherein the voltage of the processing unit to the electric actuation unit is between 1.8 volts and 8 volts.

According to the above-mentioned pupil position detection control liquid crystal visual axis adjustment system, wherein the voltage of the electric actuation unit is negative when the voltage of the processing unit is less than 4.9, and the radius of curvature of the electric actuation unit is negative; When the voltage of the processing unit to the electrically actuated unit is greater than 4.9, the radius of curvature of the electrically actuated unit is a positive value.

According to the above-mentioned pupil position detection control liquid crystal visual axis adjustment system, wherein the sensing unit is a distance sensor, the environmental state is respectively determining a distance value of the electric actuation unit to a target, The processing unit adjusts the radius of curvature of the electrically actuated unit according to the distance value.

According to the above-described pupil position detection control liquid crystal axis adjustment system, wherein the curved lens is a concave lens or a convex lens.

According to the above-mentioned pupil position detection control liquid crystal visual axis adjustment system, wherein the sensing unit is a three-axis acceleration sensor, the environmental state respectively detecting the inclination value of the electric actuation unit, the processing The unit adjusts the radius of curvature of the electrically actuated unit according to the inclination value.

According to the above-mentioned pupil position detection and control liquid crystal axis adjustment system, a battery unit is further coupled and powered to the processing unit.

According to the above-mentioned pupil position detection and control liquid crystal axis adjustment system, a frame is further included, and the curved lens and the curved surface are mounted on the frame.

It is obvious from the above description and setting that the present invention has the following several advantages and effects, which are detailed as follows:

1. The invention detects the pupil position by detecting the pupil position, and then outputs a voltage to the electric actuation unit, so that the electric actuation unit adjusts and changes its radius of curvature due to voltage driving, so that the light passing through the curved surface is The optical axes of the curved surface are parallel, and at the same time adjust the focal length of the curved lens, thereby enabling the user to maintain the optical axis parallel to the optical axis of the curved surface even when viewing the near object. It relieves the burden of the rectus muscle and the eyeball, ensures the comfort of the eyeball, and can effectively correct the vision, and can clearly observe the things in front.

2. The invention adjusts the state of the environment, such as: a distance value from a target or an inclination value of an electrically actuated unit, to output a voltage to the electrically actuated unit, causing the electrically actuated unit to adjust for voltage drive The radius of curvature, in turn, adjusts the focal length of the curved lens, so that the user can reduce the probability of the user being stunned by the focal length change, and can be applied to various occasions, such as: look, overlook, look up, read or exercise, so that The convenience and applicability of the present invention are greatly improved.

The invention will be described in detail below with reference to the drawings.

Please refer to FIG. 3 to FIG. 8 , which is a first embodiment of the present invention. The present invention is a visual axis adjustment system for a pupil position detection and control liquid crystal, which comprises:

At least one curved lens 1 is connected to a curved surface 2, and the curved lens 1 and the curved surface 2 are respectively adjacent to an electric actuating unit 3, and the electric actuating unit 3 is coupled to a processing unit 4. The curved lens 1 is a concave lens or a convex lens, and the electrically actuated unit 3 is a liquid crystal or a polymer gel;

The at least one boring detection unit 5 is coupled to the processing unit, and the boring detection unit 5 detects at least one boring position;

a sensing unit 6 coupled to the processing unit 4, the sensing unit 6 detecting an environmental state;

The processing unit 4 is configured to analyze a position of the pupil to define a visual axis, and the processing unit 4 adjusts a radius of curvature of the electrically actuated unit 3 according to the visual axis and the environmental state. The unit 4 transmits the voltage to the electric actuating unit 3 by inputting a different voltage, thereby adjusting the radius of curvature of the electric actuating unit 3, and the voltage of the processing unit 4 is input to the electric actuating unit 3, Between 1.8 volts and 8 volts, when the voltage of the processing unit 4 to the electrically actuated unit 3 is less than 4.9, the radius of curvature of the electrically actuated unit 3 is a negative value; and the processing unit 4 is delivered to the When the voltage of the electric actuating unit 3 is greater than 4.9, the radius of curvature of the electric actuating unit 3 is a positive value, so that the light B passing through the curved surface 与2 and the optical axis O of the curved surface 稜鏡2 Parallel, and adjusting the focal length of the curved lens 1 such that the viewing axis is parallel to the optical axis O; the sensing unit 6 is a distance sensor, and the environmental state determines the electrically actuated unit 3 to a distance value of the target 7, the processing unit 4 is adjusted according to the visual axis and the distance value respectively The radius of curvature of the electric actuation unit 3;

a battery unit 41 coupled to the power supply unit 4;

In a frame 8, the curved lens 1 and the curved surface 2 are attached to the frame 8.

In the embodiment of the present embodiment, as shown in FIG. 5 and FIG. 6, in terms of focusing, when the light B passes through the curved lens 1, the curved lens 1 is myopic according to the eye axis of the user's eyes and the state of the crystal. Or a far-sighted lens or a convex lens, so that the curved lens 1 can focus the light B on the user's retina to correct the user's vision; and in the case of the convergence, the curved surface 2 will pass the light of the curved surface B. Parallel to the optical axis O of the curved surface ,2, so that when the user observes one of the objects 7 located closer to the object, the eyeball does not need to be turned inward, but is like looking far away, and the binocular is facing directly in front of it. The visual axes A ₃ and A ₄ are parallel, so as to reduce the pressure on the eyeball and to observe clearly.

Because the object is different in distance, the focal length of the curved lens 1 and the ray B passing through the curved surface 折射2 are refracted to be parallel with the optical axis O of the curved surface 稜鏡2, so the present invention passes through the pupil detecting unit 5, The sensing unit 6 and the electric actuating unit 3 are arranged to determine the visual axis according to the position of the pupil, and determine the distance value of the electric actuating unit 3 to a target 7, or the tilting value of the electric actuating unit 3. In order to change the voltage applied to the electric actuation unit 3.

For example, as shown in FIG. 7 , the processing unit 4 outputs a waveform diagram of the current I at time t, and the electric actuation unit 3 is a liquid crystal or a polymer gel, and the system has high light transmittance. And when the current I passes, the radius of curvature is affected by the change of the voltage, so the processing unit 4 of the present invention has a period of 13.3 milliseconds and a frequency of about 60 Hz, and is stably supplied to the electric actuator by alternating current. Unit 3, and the voltage to the electric actuating unit 3 is between 1.8 volts and 8 volts. In the case of myopia, if the voltage of the processing unit 4 to the electric actuating unit 3 is less than 4.9, then The radius of curvature of the electric actuating unit 3 is a negative value, that is, as shown in FIG. 8, the electric actuating unit 3 at this time is like a concave lens; on the other hand, in the far view, the processing unit 4 is electrically actuated. The voltage of the unit 3 is greater than 4.9, the radius of curvature of the electrically actuated unit 3 is positive, and the electrically actuated unit 3 will assume a state like a convex lens (not shown).

After the ray B is passed through the curved lens 1 by the above, the focal length of the ray B projected by the curved lens 1 is corrected again by the electric actuating unit 3, and the refracting is used to change the direction of the ray B, so that the ray B enters the curved surface. At 2 o'clock, the light B can be refracted to be parallel to the optical axis O of the curved surface 稜鏡2, so that the state can be surely adjusted regardless of the state of the user, such as: looking, overlooking, looking up, reading or moving. The radius of curvature of the actuating unit 3 is such that the visual axes A ₃ and A _{4 of} the binoculars will be parallel to the optical axis O, thereby reducing the pressure of the eyeball, so that the user can ensure the comfort of the eyeball regardless of the distance of the observation, and Can clearly observe the observer.

The second embodiment of the present invention is different from the first embodiment in that the sensing unit 6 is a three-axis acceleration sensor, and the environmental state detects the tilt value of the electric actuating unit 3, respectively. The processing unit 4 adjusts the radius of curvature of the electrically actuated unit 3 according to the visual axis and the tilt value; thereby, the user uses the user to observe the near object when viewed from a normal time, and when looking up, The feature of the look-ahead is such that the electric actuating unit 3 generates a tilt value for the top view and the bottom view, thereby assisting the adjustment of the radius of curvature of the electric actuating unit 3 with the visual axis, so as to facilitate the user to observe or look up and reduce The burden of the eyeball; the rest of the embodiment is similar to that of the first embodiment, and therefore will not be described herein.

In summary, the technical means disclosed by the present invention can effectively solve the problems of the prior knowledge, achieve the intended purpose and efficacy, and are not found in the publication before publication, have not been publicly used, and have long-term progress, The inventions referred to in the Patent Law are correct, and the application is filed according to law, and the company is invited to give a detailed examination and grant a patent for invention.

The above is only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the invention and the contents of the invention are all It should remain within the scope of this invention.

1‧‧‧ curved lens
2‧‧‧Surface稜鏡
3‧‧‧Electrical actuation unit
4‧‧‧Processing unit
41‧‧‧ battery unit
5‧‧‧ pupil detection unit
6‧‧‧Sensor unit
7‧‧‧ Targets
8‧‧‧ frames

[Fig. 1] is a schematic diagram of binocular observation when it is far away. [Fig. 2] is a schematic diagram showing the occurrence of convergence when binocular observation of a close object. [Fig. 3] is a schematic view showing the structure of the present invention. [Fig. 4] is a perspective view of the present invention. [Fig. 5] is a schematic cross-sectional view of Fig. 4 at the A-A position. [Fig. 6] is an optical schematic view of the present invention when observing a nearby object. [Fig. 7] is a waveform diagram of the output current of the processing unit of the present invention. [Fig. 8] is a schematic cross-sectional view showing a case where the radius of curvature of the electric actuation unit of the present invention is a negative value.

1‧‧‧ curved lens

2‧‧‧Surface稜鏡

3‧‧‧Electrical actuation unit

8‧‧‧ frames

Claims (10)

A visual axis adjustment system for a pupil position detection control liquid crystal, comprising: at least one curved lens respectively connected to a curved surface, wherein the curved lens and the curved surface are adjacent to an electric actuation unit, respectively The actuation unit is coupled to a processing unit; the at least one boring detection unit is coupled to the processing unit, the boring detection unit detects at least one boring position; and a sensing unit coupled to the a processing unit, wherein the sensing unit detects an environmental state; the processing unit separately defines a visual axis by analyzing the pupil position, and the processing unit adjusts the visual axis according to the visual axis and the environmental state The radius of curvature of the electrically actuated unit is such that the light passing through the curved surface is parallel to the optical axis of the curved surface, and the focal length of the curved lens is adjusted such that the visual axis is parallel to the optical axis By. The visual axis adjustment system for the pupil position detection and control liquid crystal according to claim 1, wherein the electric actuation unit is a liquid crystal or a polymer gel. The visual axis adjustment system for the pupil position detection control liquid crystal according to claim 2, wherein the processing unit adjusts the electric actuation unit by inputting a different voltage to the electric actuation unit. The radius of curvature. The visual axis adjustment system for the pupil position detection control liquid crystal according to claim 3, wherein the voltage of the processing unit to the electric actuation unit is between 1.8 volts and 8 volts. The visual axis adjustment system for the pupil position detection and control liquid crystal according to claim 4, wherein the radius of curvature of the electrically actuated unit when the voltage of the processing unit is less than 4.9 If the voltage of the processing unit is greater than 4.9, the radius of curvature of the electrically actuated unit is a positive value. The visual axis adjustment system for the pupil position detection and control liquid crystal according to any one of claims 1 to 5, wherein the sensing unit is a distance sensor, and the environmental state is respectively determined by the electro-induced The distance value of the moving unit to a target, the processing unit respectively adjusting the radius of curvature of the electric actuating unit according to the distance value. The visual axis adjustment system for the pupil position detecting and controlling liquid crystal according to claim 6, wherein the curved lens is a concave lens or a convex lens. The visual axis adjustment system for the pupil position detection and control liquid crystal according to any one of claims 1 to 5, wherein the sensing unit is a three-axis acceleration sensor, and the environmental state is respectively detected by the The dip value of the electric actuating unit is determined, and the processing unit adjusts the radius of curvature of the electric actuating unit according to the dip value. The visual axis adjustment system for the pupil position detection and control liquid crystal according to any one of claims 1 to 5, further comprising a battery unit coupled to the power supply unit. The viewing axis adjustment system for the pupil position detecting and controlling liquid crystal according to any one of claims 1 to 5, further comprising a frame, wherein the curved lens and the curved surface are mounted on the mirror frame.