KR20200117456A - Glasses - Google Patents

Abstract

Provided are glasses. The glasses according to one aspect of the present invention comprises: a lens unit including a liquid lens unit; and a control unit controlling the liquid lens unit. The liquid lens unit includes: a first plate; a second plate disposed below the first plate; a core member disposed between the first plate and the second plate, and having a cavity; a first liquid and a second liquid disposed in the cavity of the core member; a first electrode disposed on the core member; and a second electrode disposed on the cavity of the core member. The second electrode includes a plurality of individual electrodes. The inner surface of the core member corresponding to the cavity is formed asymmetrically. The control unit controls a voltage provided to each of the plurality of individual electrodes.

Description

Glasses {Glasses}

The present invention relates to glasses.

The human eye has myopia, farsightedness, or presbyopia due to various factors. For example, as muscle aging progresses or as the use of vision is accumulated, vision is deteriorating. To this end, glasses are used to assist with decreased vision.

In general, when an object in a distant place is difficult to see, glasses for nearsightedness with a concave lens are used, and when an object in a distance is difficult to see, glasses for farsightedness with a convex lens are used.

Glasses for nearsightedness or glasses for farsightedness are short focal lenses, and a short focal concave lens or a short focal convex lens is used to see a far or close distance. Such a single focal lens can be used only when viewing or working with objects at a distance or near because the lens has a fixed focus.

On the other hand, if a user who uses glasses for nearsightedness has presbyopia due to accumulated use of eyesight, it is necessary to separately use glasses for farsightedness to see nearby places. In this case, there is a problem of having to bear the inconvenience of using glasses for nearsightedness and glasses for farsightedness.

In order to solve this problem, there is a need for glasses with multifocal lenses.

The problem to be solved by the present invention is to provide glasses capable of adjusting the focus of a lens.

Glasses according to an aspect of the present invention for achieving the above object includes a lens unit including a liquid lens unit; And a control unit for controlling the liquid lens unit, wherein the liquid lens unit includes a first plate, a second plate disposed below the first plate, and disposed between the first plate and the second plate, and a cavity A core member having, a first liquid and a second liquid disposed in the cavity of the core member, a first electrode disposed on the core member, and a second electrode disposed on the cavity of the core member. Wherein the second electrode includes a plurality of individual electrodes, an inner surface of the core member corresponding to the cavity is formed asymmetrically, and the controller controls a voltage applied to each of the plurality of individual electrodes.

In addition, the control unit may control a voltage applied to each of the plurality of individual electrodes according to an area of the inner surface of the core member corresponding to each of the plurality of individual electrodes.

In addition, the control unit may control a voltage applied to each of the plurality of individual electrodes according to a slope of the inner surface of the core member corresponding to each of the plurality of individual electrodes.

In addition, when a voltage is applied to the first electrode and the second electrode, at least a part of a refracting surface between the first liquid and the second liquid may be symmetrical.

Further, the controller may apply a higher voltage as the slope of the inner surface of the core member corresponding to each of the individual electrodes increases.

In addition, it may include an insulating layer disposed between the second electrode and the second liquid.

In addition, the liquid lens unit may be disposed in the entire area of the lens unit.

In addition, the liquid lens unit may be disposed in a lower area of the lens unit.

In addition, a difference in refractive index between the lens portion other than the liquid lens portion and the liquid lens portion may be 0.05 or less.

Glasses according to an aspect of the present invention for achieving the above object includes a lens unit including a liquid lens unit; And a control unit for controlling the liquid lens unit, wherein the liquid lens unit includes a first plate, a second plate disposed below the first plate, and disposed between the first plate and the second plate, and a cavity A core member having, a first liquid and a second liquid disposed in the cavity of the core member, a first electrode disposed on the core member, and a second electrode disposed on the cavity of the core member. Wherein the second electrode includes a plurality of individual electrodes, the plurality of individual electrodes includes a first individual electrode and a second individual electrode, and the first individual electrode and the second individual electrode have a slope and an area At least one of them is different, and the controller may control a voltage provided to each of the plurality of individual electrodes according to one of the slope and the area corresponding to each of the first individual electrode and the second individual electrode.

According to the present embodiment, it is possible to provide glasses capable of adjusting the focus of the lens.

1 is a perspective view of glasses according to an embodiment of the present invention.
2 is a cross-sectional view of a liquid lens part of spectacles according to an embodiment of the present invention.
3 is a perspective view of a core member and a second electrode of spectacles according to an exemplary embodiment of the present invention.
4 is a view showing a refractive surface of a liquid lens part of glasses according to an embodiment of the present invention.

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

However, the technical idea of the present invention is not limited to some embodiments to be described, but may be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the constituent elements may be selectively selected between the embodiments. It can be combined or substituted with

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention are generally understood by those of ordinary skill in the art, unless explicitly defined and described. It can be interpreted as a meaning, and terms generally used, such as terms defined in a dictionary, may be interpreted in consideration of the meaning in the context of the related technology.

In addition, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In the present specification, the singular form may include the plural form unless specifically stated in the phrase, and when described as "at least one (or more than one) of A and (and) B and C", it is combined with A, B, and C. It may contain one or more of all possible combinations.

In addition, in describing the constituent elements of an embodiment of the present invention, terms such as first, second, A, B, (a), (b) may be used. These terms are only for distinguishing the component from other components, and are not limited to the nature, order, or order of the component by the term.

And, when a component is described as being'connected','coupled', or'connected' to another component, the component is directly'connected','coupled', or'connected' to the other component. In addition to the case, it may include a case where the component is'connected','coupled', or'connected' due to another component between the component and the other component.

In addition, when it is described as being formed or disposed under “top (top)” or “bottom (bottom)” of each component, “top (top)” or “bottom (bottom)” means that the two components are directly It includes not only the case of contact, but also the case where one or more other components are formed or disposed between the two components. In addition, when expressed as "upper (upper)" or "lower (lower)", the meaning of not only an upward direction but also a downward direction based on one component may be included.

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

1 is a perspective view of glasses according to an embodiment of the present invention. 2 is a cross-sectional view of a liquid lens part of glasses according to an exemplary embodiment of the present invention. 3 is a perspective view of a core member and a second electrode of spectacles according to an exemplary embodiment of the present invention. 4 is a view showing a refractive surface of a liquid lens part of glasses according to an embodiment of the present invention.

1 to 4, the glasses 10 according to an embodiment of the present invention may have a liquid lens unit 100, a lens unit 200, a frame 300, and a leg 400, Some of these configurations may be excluded, and additional configurations are not excluded.

The liquid lens unit 100 may be disposed on the lens unit 200. The liquid lens unit 100 may be disposed over the entire area of the lens unit 200. The liquid lens unit 100 may be disposed in a partial area of the lens unit 200. The center of the liquid lens unit 100 may be spaced apart from the center of the lens unit 200. The liquid lens unit 100 may be disposed in a lower area of the lens unit 200. The liquid lens unit 100 may be disposed in a central area of the lens unit 200. The liquid lens unit 100 may be formed in a circular shape. The liquid lens unit 100 may be formed in an oval shape. The difference in refractive index between the liquid lens unit 100 and the lens unit 200 may be 0.05 or less.

In one embodiment of the present invention, the expression for the direction such as the top or the bottom may be interpreted as meaning an up or down direction when the user wears the glasses 10.

The liquid lens unit 100 may include a first plate 110. The first plate 110 may be disposed on the second plate 130. The first plate 110 may be formed of a transparent glass or plastic material. A first electrode 140 may be disposed on the core member 120.

The liquid lens unit 100 may include a second plate 130. The second plate 130 may be disposed under the first plate 110. The second plate 130 may be formed of a transparent glass or plastic material. The second electrode 150 may be disposed on the second plate 130. The second electrode 150 may be disposed between the second plate 130 and the core member 120. A part of the second electrode 150 may be disposed between the second plate 130 and the core member 120.

)를 이룰 수 있다. 코어 부재(120)의 내측면은 비대칭 형상으로 형성될 수 있다. 구체적으로, 코어 부재(120)의 내측면이 하면과 이루는 각도가 다양하게 변경될 수 있고, 내측면의 면적이 다양하게 변경될 수 있다. 코어 부재(120)의 내측면에는 제2 전극(150)이 배치될 수 있다. 코어 부재(120)의 내측면에는 제2 전극(150)의 일부가 배치될 수 있다. 코어 부재(120)는 투명한 글라스(glass) 또는 플라스틱(plastic) 재질로 형성될 수 있다. 코어 부재(120)는 제1 플레이트(110)와 제2 플레이트(130) 사이에 배치되어, 캐비티(cavity)를 가질 수 있다. 즉, 부재(120)는 제1 플레이트(110)와 제2 플레이트(130) 사이에 배치되어, 내부 공간을 형성할 수 있다. 코어 부재(120)의 캐비티에는 제1 액체(170)와, 제2 액체(180)와, 제1 전극(140)과, 제2 전극(150)이 배치될 수 있다.The liquid lens unit 100 may include a core member 120. The core member 120 may be disposed between the first plate 110 and the second plate 130. The core member 120 may be formed in a ring shape. The inner surface of the core member 120 may be inclined. Specifically, the inner surface of the core member 120 is at an angle (

) Can be achieved. The inner surface of the core member 120 may be formed in an asymmetric shape. Specifically, the angle formed by the inner surface of the core member 120 and the lower surface may be variously changed, and the area of the inner surface may be variously changed. The second electrode 150 may be disposed on the inner surface of the core member 120. A part of the second electrode 150 may be disposed on the inner surface of the core member 120. The core member 120 may be formed of a transparent glass or plastic material. The core member 120 may be disposed between the first plate 110 and the second plate 130 to have a cavity. That is, the member 120 may be disposed between the first plate 110 and the second plate 130 to form an inner space. A first liquid 170, a second liquid 180, a first electrode 140, and a second electrode 150 may be disposed in the cavity of the core member 120.

The liquid lens unit 100 may include a first liquid 170 and a second liquid 180. The first liquid 170 may be disposed on one side or in front of the second liquid 180. The first liquid 170 and the second liquid 180 may be disposed in an inner space between the first plate 110 and the second plate 130. The first liquid 170 and the second liquid 180 may be disposed in an inner space between the first plate 110 and the core member 120 and the second plate 130.

The first liquid 170 may be a conductive liquid, and the second liquid 180 may be a non-conductive liquid. For example, the first liquid 170 may be water, and the second liquid 180 may be oil. The first liquid 170 and the second liquid 180 may not be mixed with each other. The first liquid 170 and the second liquid 180 may be liquids that are not harmful to the human body. The first liquid 170 and the second liquid 180 may be transparent liquids. The interface between the first liquid 170 and the second liquid 180 may be a refracting surface 190.

When a voltage or current is applied to the first electrode 140 and the second electrode 150, the first liquid 170 and the second liquid 180 move, and the refracting surface 190 may change variously. For example, when voltage or current is applied to the first electrode 140 and the second electrode 150, the refracting surface 190 may be convex in front of the glasses 10 or toward the water side. Through this, the eyesight of the user with presbyopia can be corrected.

The liquid lens unit 100 may include an insulating layer 160. The insulating layer 160 may be disposed between the first liquid 170 and the first electrode 140. The insulating layer 160 may be disposed between the first liquid 170 and the second electrode 150. The insulating layer 160 may be disposed between the second liquid 180 and the second electrode 150. The insulating layer 160 may be formed as a thin film. The insulating layer 160 may be formed by being stacked on at least a portion of the surfaces of the first electrode 140 and/or the second electrode 150. The insulating layer 160 may be formed of a transparent material.

The liquid lens unit 100 may include a first electrode 140. The first electrode 140 may be disposed on the core member 120. The first electrode 140 may be formed of a conductive material. For example, the first electrode 140 may be made of metal. The first electrode 140 may be formed of a thin film. The first electrode 140 may be deposited on the core member 120 by a method such as chemical vapor deposition or plasma margin deposition. The first electrode 140 may be formed of a transparent material. The first electrode 140 may be formed of Indium Tin Oxide (ITO). The control signal applied to the first electrode 140 may be a pulse width modulation (PWM) signal. The driving voltage of the first electrode 140 may be 70V or less.

The liquid lens unit 100 may include a second electrode 150. The second electrode 150 may be disposed on the second plate 130. The second electrode 150 may be disposed on the upper surface of the second plate 130. The second electrode 150 may be disposed between the second plate 130 and the core member 120. The second electrode 150 may be disposed on the core member 120. The second electrode 150 may be disposed on the inner surface of the core member 120. A part of the second electrode 150 may be disposed between the second plate 130 and the core member 120, and another part of the second electrode 150 may be disposed on the inner surface of the core member 120. . At least part of the second electrode 150 may be bent.

The second electrode 150 may be formed of a conductive material. For example, the second electrode 150 may be made of metal. The second electrode 150 may be formed of a thin film. The second electrode 150 may be deposited on the core member 120 by a method such as chemical vapor deposition or plasma margin deposition. The second electrode 150 may be formed of a transparent material. The second electrode 150 may be formed of Indium Tin Oxide (ITO). The control signal applied to the second electrode 150 may be a pulse width modulation (PWM) signal. The driving voltage of the second electrode 150 may be 70V or less.

The second electrode 150 may include a plurality of individual electrodes 152. The plurality of individual electrodes 152 may be disposed on the inner surface of the core member 120. Each of the plurality of individual electrodes 152 may be disposed along the inner surface of the core member 120. For example, the first individual electrode 1521 is disposed in a partial region of the inner surface of the core member 120, and the second individual electrode 1522 is the core member 120 adjacent to the first individual electrode 1521 The third individual electrode 1523 may be disposed in a partial region of the inner surface of the and the third individual electrode 1523 may be disposed in a partial region of the inner surface of the core member 120 adjacent to the second individual electrode 1522. The angle formed by each of the plurality of individual electrodes 152 with the reference plane is an angle or a central axis between the inner surface of the core member 120 corresponding to each of the plurality of individual electrodes 152 and For example, it may correspond to the optical axis, the central axis of the cavity, etc.). Each of the plurality of individual electrodes 152 may have different sizes. For example, an area of each of the plurality of individual electrodes 152 may correspond to an area of an area of the inner surface of the core member 120 corresponding to each of the plurality of individual electrodes 152.

Each of the plurality of individual electrodes 152 may be electrically connected to a control unit (not shown) of the glasses leg 400 through an electrode connection unit (not shown) of the eyeglass frame 300. Each of the plurality of individual electrodes 152 may be controlled by the controller. Through this, a desired refractive surface 190 can be formed even when the shape of the cavity, that is, the core member 120 is asymmetric.

The lens unit 200 may be disposed on the spectacle frame 300 of the spectacles 10. In an embodiment of the present invention, the lens unit 200 is described as being disposed on the eyeglass frame 300 of the eyeglasses 10, but the lens unit 200 is directly connected to the eyeglass leg 400 without the eyeglass frame 300 It is okay to be. The lens unit 200 may be formed of a transparent glass or plastic material. The liquid lens unit 100 may be disposed in the lower area of the lens unit 200.

The spectacle frame 300 may accommodate the lens unit 200. The eyeglass frame 300 may be provided with an electrode connector that transmits voltage or current to the liquid lens unit 100. The electrode connection portion of the eyeglass frame 130 may be electrically connected to the second electrode 150. The electrode connection portion of the eyeglass frame 130 may be electrically connected to the control unit of the eyeglass leg 400. In an embodiment of the present invention, the spectacle frame 300 is described as an example of a rectangular shape, but is not limited thereto, and may be deformed into an oval shape or a circle shape.

The spectacle leg 400 may be connected to the spectacle frame 300. A signal providing unit (not shown) for receiving a signal from a user may be disposed on the glasses leg 400. A control unit (not shown) that generates a signal for controlling the liquid lens unit 100 according to a signal input from a user may be disposed on the glasses leg 400. A voltage driver (not shown) that provides a voltage or current according to a signal from the controller may be disposed on the glasses leg 400.

The controller may control a voltage or current provided to each of the individual electrodes 152 of the second electrode 150. The controller may control the voltage provided to each of the individual electrodes 152 according to the area of the inner surface area of the core member 120 corresponding to the individual electrode 152. In addition, the controller may control the voltage provided to the individual electrodes 152 according to the slope of the inner surface area of the core member 120 corresponding to the individual electrodes 152. At this time, the control unit is the inclination of the inner surface area of the core member 120 corresponding to the individual electrode 152, that is, the inner surface area and the core core member 120 corresponding to the individual electrode 152 The larger the angle made with the lower surface of the lens, the higher the voltage can be applied. When voltage or current is applied to the first electrode 140 and/or the second electrode 150, at least a part of the refracting surface 190 between the first liquid 170 and the second liquid 180 may be symmetrical. have. Through this, even when the shape of the core member 120 on which the second electrode 150 is disposed is asymmetric, a desired refractive surface 190 may be obtained.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You can understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting.

10: glasses 100: liquid lens unit
110: first plate 120: core member
130: second plate 140: first electrode
150: second electrode 160: insulating layer
170: first liquid 180: second liquid
190: refracting surface 200: lens unit
300: glasses frame 400: glasses legs

Claims (11)

A lens unit including a liquid lens unit; And
And a control unit for controlling the liquid lens unit,
The liquid lens unit,
A first plate,
A second plate disposed below the first plate,
A core member disposed between the first plate and the second plate and having a cavity,
A first liquid and a second liquid disposed in the cavity of the core member,
A first electrode disposed on the core member,
And a second electrode disposed on the cavity of the core member,
The second electrode includes a plurality of individual electrodes,
The inner surface of the core member corresponding to the cavity is formed asymmetrically,
The control unit controls the voltage provided to each of the plurality of individual electrodes.
The method of claim 1,
The control unit controls voltages provided to each of the plurality of individual electrodes according to an area of the inner surface of the core member corresponding to each of the plurality of individual electrodes.
The method of claim 1,
The control unit controls a voltage applied to each of the plurality of individual electrodes according to a slope of the inner surface of the core member corresponding to each of the plurality of individual electrodes.
The method according to any one of claims 1 to 3,
When a voltage is applied to the first electrode and the second electrode, at least a part of the refractive surface between the first liquid and the second liquid is symmetrical.
The method of claim 3,
The control unit applies a higher voltage as the slope of the inner surface of the core member corresponding to each of the individual electrodes increases.
The method of claim 1,
Glasses including an insulating layer disposed between the second electrode and the second liquid.
The method of claim 1,
The liquid lens unit is disposed in the entire area of the lens unit.
The method of claim 1,
The liquid lens unit is disposed under the lens unit.
The method of claim 1,
A difference in refractive index between the lens portion other than the liquid lens portion and the liquid lens portion is 0.05 or less.
The method of claim 1,
The core member is ring-shaped,
The first and second plates and the core member are formed of a transparent material,
The first electrode and the second electrode are transparent electrodes,
The first liquid and the second liquid are transparent liquids.
A lens unit including a liquid lens unit; And
And a control unit for controlling the liquid lens unit,
The liquid lens unit,
A first plate,
A second plate disposed below the first plate,
A core member disposed between the first plate and the second plate and having a cavity,
A first liquid and a second liquid disposed in the cavity of the core member,
A first electrode disposed on the core member,
And a second electrode disposed on the cavity of the core member,
The second electrode includes a plurality of individual electrodes,
The plurality of individual electrodes includes a first individual electrode and a second individual electrode,
The first individual electrode and the second individual electrode have at least one of a slope and an area different from each other,
The control unit controls the voltage provided to each of the plurality of individual electrodes according to one of the slope and the area corresponding to each of the first and second individual electrodes.

Images