KR102072136B1 - Polygonal variable focus lens array and method for removing optical aberrations using the same - Google Patents

Abstract

As a variable focus polygonal lens array, a plurality of unit lenses are arranged on the same plane. Each unit lens comprises: a lower substrate of polygonal shape; a plurality of pillars disposed at each vertex of the lower substrate; a plurality of partition walls disposed on upper ends of the plurality of pillars to connect the plurality of pillars, respectively; and a thin film having the polygonal shape and bonded to upper ends of the plurality of partition walls.

Description

VARIABLE FOCUS POLYLENS ARRAY AND METHODS OF OPTICAL ABRISSION USING THE SAME {POLYGONAL VARIABLE FOCUS LENS ARRAY AND METHOD FOR REMOVING OPTICAL ABERRATION S

The present invention relates to a variable focus polygon lens array and a method for removing aberration using the same.

An integrated imaging system is an optical system for reproducing three-dimensional images. An integrated imaging system uses a lens array to form a direct image of an object in space. Digital holograms in the existing three-dimensional image reproduction methods are still considered to be a distant technology because the amount of data to process operations is too large, and the perspective method using binocular disparity is an optical illusion due to brain illusion. Because of this, you can feel dizziness. However, since the integrated imaging system does not require a large amount of computation like a digital hologram and is not a technique using an optical illusion like a viewpoint using binocular disparity, it has attracted much attention as a next generation 3D display method.

Meanwhile, the integrated imaging system may adjust the depth range in which the 3D object is expressed by using a lens array having a different focal length or adjusting a distance between the display and the lens array. However, in the case of using a conventional focal variable polygonal lens array structure, optical aberration inevitably occurs when the depth range is adjusted.

Therefore, the present invention provides a technique for implementing a variable focus polygon lens array by implementing a variable focus lens through a structure in which optical aberration can be removed using a hydraulic method, and placing the implemented variable focus lens on a plane. .

In the variable focus polygonal lens array according to the exemplary embodiment of the present invention, a plurality of unit lenses are arranged on the same plane, and each unit lens includes a lower substrate having a polygonal shape, a plurality of pillars disposed at each vertex of the lower substrate, A plurality of partition walls disposed on top of the plurality of pillars, respectively connecting the plurality of pillars, and having a polygonal shape and bonded to the top of the plurality of partition walls.

The elastic modulus of the plurality of partition walls is higher than the elastic modulus of the thin film.

The thickness of the plurality of partitions and the thickness of the thin film have a first ratio.

When the polygonal shape is an equilateral triangle, the thickness of the thin film and the thickness of the plurality of partitions are 1: 2.5 to 1: 3.5, respectively.

When the polygonal shape is square, the preset first ratio is a thickness of the thin film and a thickness of the plurality of partitions, respectively, 1: 3 to 1: 5.

When the polygonal shape is a regular hexagon, the first ratio may be a thickness of the thin film and a thickness of the plurality of partition walls, respectively, from 1: 4 to 1: 8.

Each unit lens further includes a liquid filled in the unit lens including the lower substrate, the plurality of pillars, the plurality of partitions, and the thin film.

When the liquid is filled in the liquid inside the unit lens by a predetermined amount, the height from the center of the thin film to the highest point based on the initial height of the upper end of the plurality of partition walls is the first height, The height from the boundary of the thin film to the highest point based on the initial height of the upper end of the plurality of partition walls is a second height, and the first height and the second height have a preset second ratio.

The polygonal shape is an equilateral triangle, and the preset second ratio is the first height and the second height of 4: 2.5 to 4: 3.5, respectively.

The polygonal shape is square, and the preset second ratio is 1: 0.75 to 1: 1.25, respectively, in the first height and the second height.

The polygonal shape is a regular hexagon, and the preset second ratio is 4: 0.5 to 4: 1.5 in the first height and the second height, respectively.

A method of fabricating a variable focus polygonal lens array capable of removing optical aberration by a lens array manufacturing apparatus according to an embodiment of the present invention includes manufacturing a plurality of unit lenses, and arranging the unit lenses on the same plane. The manufacturing of the unit lenses may include: arranging a plurality of pillars at each vertex of the lower substrate having a polygonal shape, and arranging a plurality of partition walls connecting the plurality of pillars on top of the plurality of pillars. And bonding the thin film having the polygonal shape to an upper end of the plurality of partition walls to manufacture each unit lens.

Method of manufacturing a variable focus polygon lens array according to an embodiment of the present invention further comprises the step of injecting a liquid into the unit lens consisting of the lower substrate, the plurality of pillars, the plurality of partitions and the thin film. Include.

The injecting of the liquid may include a height from the center of the thin film to the highest point based on the initial height of the upper ends of the plurality of partition walls and a first height, and the thin film based on the initial height of the upper ends of the plurality of partition walls. The liquid is injected so that the height from the boundary of the point to the highest point is the second height, and the first height and the second height are a preset ratio.

In the injecting of the liquid, when the polygonal shape is an equilateral triangle, the liquid is injected such that a ratio of the first height and the second height is 4: 2.5 to 4: 3.5, respectively.

In the injecting of the liquid, when the polygonal shape is square, the liquid is injected such that a ratio of the first height and the second height is 1: 0.75 to 1: 1.25, respectively.

Injecting the liquid, if the polygon shape is a regular hexagon, the liquid is injected so that the ratio of the first height and the second height is 4: 0.5 to 4: 1.5, respectively.

According to the present invention, the optical aberration can be prevented from occurring while improving the fill factor, which has been a problem in the conventional variable focus polygon lens array, thereby improving the depth range of the integrated imaging system, which is one of the three-dimensional imaging techniques. Can be.

1 is a view illustrating a lens array implemented with a conventional circular lens.
2 to 4 are diagrams illustrating a lens array composed of conventional polygonal lenses.
5 to 7 illustrate a method of controlling optical aberration by changing a curvature of a lens in a lens array composed of polygonal lenses.
8 is a view illustrating a variable focus lens according to an exemplary embodiment of the present invention.
FIG. 9 is a diagram illustrating a variable focus polygonal lens array implemented with the variable focus lens of FIG. 8.
10 is a view for explaining a variable focus lens according to another exemplary embodiment of the present invention.
FIG. 11 is a diagram illustrating a variable focus polygonal lens array implemented with the variable focus lens of FIG. 10.
12 is a view for explaining a variable focus lens according to another exemplary embodiment of the present invention.
FIG. 13 is a diagram illustrating a variable focus polygonal lens array implemented with the variable focus lens of FIG. 12.
14 and 15 illustrate an integrated imaging system implemented with a variable focus polygonal lens array according to embodiments of the present invention.
FIG. 16 is a view for explaining a method of manufacturing a variable focus polygon lens array in which the lens array manufacturing apparatus can eliminate optical aberration.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, except to exclude other components unless specifically stated otherwise.

1 is a view illustrating a lens array implemented with a conventional circular lens.

Referring to FIG. 1, the variable focus polygonal lens array typically uses an electrowetting method or a hydraulic method. The methods may use the circular lens 10 shown in FIG. 1, which is advantageous in terms of optical aberrations than the lens array composed of polygonal lenses because the lens array composed of the circular lenses 10 is symmetric about the optical axis. Have.

In detail, the lens array including the circular lens 10 does not generate image distortion due to optical aberration caused by lens curvature at the edge portion, even when the magnification is 1, as well as when it passes through an opening having a magnification of 1 or more. .

However, as shown in FIG. 1, when the lens array is configured through the circular lens 10, the empty space 11 occurs, and the empty space 11 is very large according to the size of the circular lens 10. There is a problem that it is not suitable as an array form because it can occupy an area.

Therefore, in order to minimize the empty space generated when the array is implemented, a polygonal array that may have a fill factor of 100%, such as a triangle, a rectangle, and a hexagon, should be used.

2 to 4 are diagrams illustrating a lens array composed of conventional polygonal lenses.

As shown in FIGS. 2 to 4, the lens array may be configured through the polygonal lenses 20, 30, and 40, such as the triangular lens 20, the rectangular lens 30, and the hexagonal lens 40. However, when the lens array is constructed using the polygonal lenses 20, 30, and 40, the fill factor can be improved, but the edge portions 21, 31, and 41 are fixed due to the principle of the electrowetting method and the hydraulic method. There is a problem that optical aberration inevitably occurs because the shape of the center portion of the lens is changed.

In detail, the lens array including the polygonal lenses 20, 30, and 40 does not generate optical aberration due to lens curvature when the magnification is 1. However, since the magnification is 1, no enlargement or reduction occurs.

If the magnification is set to 1 or more in order to enlarge or reduce the three-dimensional object, the lens array composed of the polygonal lenses 20, 30 and 40 is not formed symmetrically from the optical axis by the edge portions 21, 31 and 41. Do not. Thus, image distortions 22, 32, and 42 occur due to optical aberrations caused by uneven lens curvature at the edges of each polygon.

5 to 7 illustrate a method of controlling optical aberration by changing a curvature of a lens in a lens array composed of polygonal lenses.

As described above, the shape of the lens surfaces 23, 33 and 43 of the polygonal lenses 20, 30 and 40 is not symmetrically formed from the optical axis by the edge portions 21, 31 and 41 of each lens.

Specifically, looking at the cross section of the polygonal lens 20, 30 and 40, the curvature 25, 35 and 45 from the highest point 24, 34 and 44 of the lens surface to the center point of the lens boundary side is Since the curvatures 26, 36, and 46 from the highest points 24, 34, and 44 to the vertices are larger, the uneven curvature causes optical aberrations.

However, if the shape of the boundary side of each of the polygon lenses 20, 30 and 40 is modified, both curvatures of each polygon lens 20, 30 and 40 may have a shape symmetrical with respect to the optical axis. That is, by changing the shape of the boundary sides of the polygonal lenses 20, 30, and 40, the curvature of each of the polygonal lenses 20, 30, and 40 can be adjusted uniformly to control the optical aberration.

Hereinafter, the variable focus polygon lens array of the present invention implemented through the method described with reference to FIGS. 5 to 7 will be described.

FIG. 8 is a view illustrating a variable focus lens according to an exemplary embodiment of the present invention, and FIG. 9 is a view illustrating a variable focus polygon lens array implemented by the variable focus lens of FIG. 8.

8 and 9, the unit lens 100 includes a lower substrate 110 having a polygonal shape, a plurality of pillars 120 and a plurality of pillars 120 disposed at each vertex of the lower substrate 110. A thin film disposed on the top of the plurality of partitions 130 connecting the plurality of pillars 120, respectively, and having the same polygonal shape as the lower substrate 110 and bonded to the top of the plurality of partitions 130. 140.

In addition, the unit lens 100 may fill the liquid 151 filled in the interior 150 of the unit lens including the lower substrate 110, the plurality of pillars 120, the plurality of partitions 130, and the thin film 140. It includes more.

Specifically, the lower substrate 110 is firmly implemented so that the shape does not change even when the liquid 151 is applied to the inside 150 of the unit lens. For example, the lower substrate 110 may be formed of a material having a higher elastic modulus than the plurality of partitions 130 and the thin film 140 such as a glass substrate.

The pillars 120 connect the plurality of partitions 130 and the lower substrate 110 to form a space in which the liquid 151 is to be present.

The plurality of partitions 130 has a higher modulus of elasticity than the thin film 140. To this end, the thickness of the plurality of partitions 130 may be thicker than the thickness of the thin film 140, or the material implementing the plurality of partitions 130 may be a material having a higher modulus of elasticity than the material of the thin film 140. have. That is, when the plurality of partitions 130 are formed of the same material as the thin film 140, they are thicker than the thickness of the thin film 140. It can be implemented with a material having a high modulus of elasticity.

The thin film 140 functions as a lens in the unit lens 100 and may be formed of a material such as polymer-based polydimethylsiloxane (PDMS) having a low modulus of elasticity.

The liquid 151 may be a liquid having a refractive index similar to that of the polymer used to minimize diffuse reflection and additionally occur optical aberrations.

When the pressure is applied to the liquid 151 by a method such as a piezo pump or a voice coil from the outside, a portion of the thin film 140 having a relatively small elastic modulus starts to swell.

Since the lower substrate 110 has a high elastic modulus, deformation does not occur due to the liquid 151. The plurality of pillars 120 also do not deform because the pressure due to the liquid 151 is the same in all directions.

Therefore, only the plurality of partitions 130 and the thin film 140 swell due to the liquid 151, and the plurality of partitions 130 have a higher modulus of elasticity than the thin film 140. Swell less than the center.

If the plurality of partition walls 130 do not exist and the thin film 140 and the plurality of pillars 120 are directly bonded to each other, the thin film 140 does not have sides and only vertices due to the injection of the liquid 151. I can't swell up and have the right lens shape.

On the contrary, if the plurality of pillars 120 do not exist and the plurality of partition walls 130 are directly attached to the lower substrate 110, only the thin film 140 may be inflated to remove optical aberration. Conventional hydraulic lenses have a problem that the optical aberration cannot be removed because the plurality of pillars 120 do not exist.

On the other hand, the degree of swelling of the thin film 140 is used to adjust the focal length of the unit lens 100, which can be freely deformed as desired by the user. However, the degree of swelling of the plurality of partitions 130 should be adjusted together according to the degree of swelling of the thin film 140. The degree of bulging of the plurality of partitions 130 and the thin film 140 to remove the optical aberration is determined according to the shape of the unit lens 100.

Specifically, when the liquid 151 is filled in the interior 150 of the unit lens by a predetermined amount, to the highest point in the center of the thin film 140 based on the initial height of the top of the plurality of partitions 130 If the height of the first height (a), and the height from the boundary of the thin film 140 to the highest point on the basis of the initial height of the top of the plurality of partitions 130 is the second height (b), The height a and the second height b have a preset ratio, and the preset ratio is determined according to the shape of the unit lens 100.

For example, as shown in FIGS. 8 and 9, when the shape of the lower substrate 110 and the thin film 140 is an equilateral triangle shape, the distance from the center to the vertex is twice the distance from the center to the center of the side. Corresponds to Therefore, in order for the thin film 140 to have a parabolic shape known to have the least optical aberration, the ratio of the first height a and the second height b must be 4: 3. Considering various conic constant values according to the shape of the lens surface desired by the user, the ratio of the first height a and the second height b in the range where the optical aberration is removed is 4: 2.5 to 4 It can change up to: 3.5.

Meanwhile, when the plurality of partitions 130 and the thin film 140 are formed of the same material, the thickness ratio of the plurality of partitions 130 and the thin film 140 is also related to the optical aberration, and the thickness ratio is the unit lens 100. It depends on the shape of the.

For example, as shown in FIGS. 8 and 9, the shape of the lower substrate 110 and the thin film 140 is an equilateral triangle shape, and the plurality of partitions 130 and the thin film 140 are formed of polydimethylsiloxane. In this case, when the thickness ratio of the thin film 140 and the plurality of partitions 130 is 1: 2.5 to 1: 3.5, optical aberration may be removed.

The unit lenses 100 are two-dimensionally arranged on the same plane to constitute the variable focus polygonal lens array 1000.

For example, referring to FIG. 9, when the shape of the unit lens 100 is an equilateral triangle, the variable focus polygonal lens array 1000 may be implemented in a form in which the unit lenses 100 are arranged adjacent to each other. .

As such, the plurality of barrier ribs 130 positioned at the boundary of the unit lens 100 adjusts the thickness of the barrier rib 130 so as to suppress the expansion of the thin film 140. It serves as a side for separating the boundary of each unit lens 100 of the lens array 1000.

When the hydraulic pressure is applied due to the liquid 151, the plurality of partitions 130 and the thin film 140 expand, but each side portion of the unit lens 100 is formed by the plurality of partitions 130. Less swelling. In addition, since the plurality of pillars 120 are attached to the lower substrate 110, each vertex portion of the thin film 140 does not expand to finally form a polygonal lens. Since the structure of the plurality of barrier ribs 130 also expands proportionally according to the degree of expansion of the thin film 140, the optical aberration may be eliminated even in a continuous focus change without being limited to only one focal length.

FIG. 10 is a view illustrating a variable focus lens according to another exemplary embodiment of the present invention, and FIG. 11 is a view illustrating a variable focus polygon lens array implemented by the variable focus lens of FIG. 10.

10 and 11, the unit lens 200, like the unit lens 100 illustrated in FIGS. 8 and 9, has a lower substrate 210, a plurality of pillars 220, and a plurality of partition walls ( 230, and a thin film 240. In addition, the unit lens 200 may fill the liquid 251 filled in the interior 250 of the unit lens including the lower substrate 210, the plurality of pillars 220, the plurality of partitions 230, and the thin film 240. It includes more.

As described with reference to FIGS. 8 and 9, the degree of swelling of the plurality of partitions 230 and the thin film 240 to remove the optical aberration is determined according to the shape of the unit lens 200.

Accordingly, as shown in FIGS. 10 and 11, when the lower substrate 210 and the thin film 240 of the unit lens 200 have a square shape, the first height a and the second height defined in FIG. The height b ratio should be 1: 1 so that the thin film 240 becomes parabolic. In addition, when considering various cone constant values according to the shape of the lens surface desired by the user, the ratio of the first height a and the second height b in the range where the optical aberration is removed is 1: 0.75 to 1: 1.25. Can change up to

In addition, when the shape of the lower substrate 210 and the thin film 240 is square, the thickness ratio of the thin film 240 and the plurality of partitions 230 to remove optical aberration is 1: 3 to 1: 5 days. Can be.

As described in FIG. 9, the unit lenses 200 are two-dimensionally arranged on the same plane to form the variable focus polygonal lens array 2000. For example, referring to FIG. 11, when the unit lens 200 has a square shape, the variable focus polygonal lens array 2000 may be implemented in a form in which the unit lenses 200 are arranged adjacent to each other. .

FIG. 12 is a view illustrating a variable focus lens according to another exemplary embodiment of the present invention, and FIG. 13 is a view illustrating a variable focus polygon lens array implemented by the variable focus lens of FIG. 12.

12 and 13, the unit lens 300, like the unit lens 100 illustrated in FIGS. 8 and 9, has a lower substrate 310, a plurality of pillars 320, and a plurality of partition walls ( 330, and a thin film 340. In addition, the unit lens 300 may fill the liquid 351 filled in the interior 350 of the unit lens including the lower substrate 310, the plurality of pillars 320, the plurality of partitions 330, and the thin film 340. It includes more.

As described with reference to FIGS. 8 and 9, the degree of swelling of the plurality of partitions 330 and the thin film 340 to determine the optical aberration is determined according to the shape of the unit lens 300.

Thus, as shown in FIGS. 12 and 13, when the lower substrate 310 and the thin film 340 of the unit lens 300 have a regular hexagonal shape, the first height a and the second height defined in FIG. The height b ratio should be 4: 1 for the thin film 340 to be parabolic. In addition, when considering various cone constant values according to the shape of the lens surface desired by the user, the ratio of the first height a and the second height b in the range where the optical aberration is removed is 4: 0.5 to 4: 1.5. Can change up to

In addition, when the shape of the lower substrate 310 and the thin film 340 is a regular hexagon, the thickness ratio of the thin film 340 and the plurality of partitions 330 to remove optical aberration is 1: 4 to 1: 8 days. Can be.

As described with reference to FIG. 9, the unit lenses 300 are two-dimensionally arranged on the same plane to form the variable focus polygonal lens array 3000. For example, referring to FIG. 13, when the shape of the unit lens 300 is a regular hexagon, the variable focus polygonal lens array 3000 may be implemented in a form in which the unit lenses 300 are arranged adjacent to each other. .

14 and 15 illustrate an integrated imaging system implemented with a variable focus polygonal lens array according to embodiments of the present invention.

Referring to FIG. 14, the integrated imaging system 4000 includes a display panel 410 and a variable focus polygonal lens array 420.

The display panel 410 is a component for receiving a basic image set and implementing the 3D integrated image. The display panel 410 has the same configuration as that of a conventional computer-generated (CG) integrated imaging system.

That is, the display panel 410 may receive a basic image set and display the same. For example, a conventional liquid crystal display (LCD), a CRT monitor, or a projector may be used.

The variable focus polygon lens array 420 is implemented by any one of the variable focus polygon lens arrays 1000, 2000, and 3000 described with reference to FIGS. 8 to 13, and the three-dimensional polygon lens array 420 is provided to the user through the variable focus polygon lens array 420. Provide an integrated image.

Meanwhile, as described above, the focal length of the variable focus polygon lens array 420 may be adjusted by adjusting the swelling degree of the thin film in the variable focus polygon lens array 420. If the thin film of the unit lens constituting the variable focus polygon lens array 420 is swelled to the maximum in the range where the optical aberration is removed, the 3D integrated image 430 may be provided at a point of short focal length as shown in FIG. 14. Can be. On the contrary, when the thin film of the unit lens constituting the variable focus polygonal lens array 420 swells to the minimum in the range where the optical aberration is removed, the 3D integrated image 440 is located at a long focal length point as shown in FIG. 15. Can be provided.

FIG. 16 is a view for explaining a method of manufacturing a variable focus polygon lens array in which the lens array manufacturing apparatus can eliminate optical aberration.

Referring to FIG. 16, the lens array manufacturing apparatus manufactures a unit lens.

Specifically, the lens array manufacturing apparatus arranges a lower substrate having a polygonal shape on a plane (S100).

Thereafter, the lens array manufacturing apparatus arranges the plurality of pillars at each vertex of the lower substrate (S110).

The lens array manufacturing apparatus arranges a plurality of partition walls respectively connecting the plurality of pillars on the upper ends of the plurality of pillars (S120).

The lens array manufacturing apparatus fabricates a unit lens by bonding a thin film having the same polygonal shape as the lower substrate to the upper ends of the plurality of partition walls (S130).

Thereafter, the lens array manufacturing apparatus determines a space formed of a lower substrate, a plurality of pillars, a plurality of partitions, and a thin film as the inside of the unit lens (S140).

The lens array manufacturing apparatus injects a predetermined amount of liquid into the unit lens to remove the optical aberration (S150).

In this case, the preset amount of liquid injected is based on the first height, which is the height from the center of the thin film to the highest point with respect to the initial height of the top of the plurality of partitions, and the initial height of the top of the plurality of partitions. It is defined as a second height, which is the height from the boundary to the highest point, and the ratio of the first height and the second height is determined according to the shape of the lower substrate and the thin film.

In one embodiment, when the shape of the lower substrate and the thin film is an equilateral triangle, the ratio of the first height and the second height may be 4: 2.5 to 4: 3.5, respectively.

In another embodiment, when the shape of the lower substrate and the thin film is square, the ratio of the first height and the second height may be 1: 0.75 to 1: 1.25, respectively.

In another embodiment, when the shape of the lower substrate and the thin film is a regular hexagon, the ratio of the first height and the second height may be 4: 0.5 to 4: 1.5, respectively.

The lens array manufacturing apparatus manufactures at least one unit lens into which liquid is injected, and arranges the plurality of unit lenses in two dimensions on the same plane (S160).

According to the present invention, it is possible to solve the optical aberration problem that has been a problem in the conventional variable focus polygonal lens array, thereby improving the depth representation range in the integrated imaging system, which is one of the three-dimensional imaging techniques.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (17)

A varifocal polygonal lens array,
A plurality of unit lenses are arranged on the same plane,
Each unit lens
Polygonal bottom substrate,
A plurality of pillars disposed at each vertex of the lower substrate,
A plurality of partition walls disposed on top of the plurality of pillars, respectively connecting the plurality of pillars, and
And a polygonal shape and comprising a thin film bonded to the top of the plurality of partitions. In claim 1,
And a modulus of elasticity of the plurality of partition walls is higher than that of the thin film. In claim 2,
And a thickness of the plurality of partition walls and a thickness of the thin film have a first ratio. In claim 3,
And wherein the polygonal shape is an equilateral triangle, wherein the preset first ratio is a thickness of the thin film and a thickness of the plurality of partition walls, respectively, from 1: 2.5 to 1: 3.5. In claim 3,
And wherein the polygonal shape is square, the preset first ratio is a thickness of the thin film and a thickness of the plurality of partitions, respectively, from 1: 3 to 1: 5. In claim 3,
And wherein the polygonal shape is a regular hexagon, the preset first ratio having a thickness of the thin film and a thickness of the plurality of partitions being 1: 4 to 1: 8, respectively. In claim 1,
Each unit lens is
And a liquid filled in the unit lens including the lower substrate, the plurality of pillars, the plurality of partitions, and the thin film. In claim 7,
The thin film is
When the liquid is filled in a predetermined amount inside the unit lens, the height from the center of the thin film to the highest point is the first height based on the initial height of the upper end of the plurality of partition walls, and the plurality of partition walls And a height from the boundary of the thin film to the highest point based on the initial height of the top of the field is a second height, and the first height and the second height have a preset second ratio. In claim 8,
The polygonal shape is an equilateral triangle,
And wherein the preset second ratio is that the first height and the second height are 4: 2.5 to 4: 3.5, respectively. In claim 8,
The polygonal shape is square,
The preset second ratio is a variable focus polygonal lens array wherein the first height and the second height are each 1: 0.75 to 1: 1.25. In claim 8,
The polygonal shape is a regular hexagon,
And wherein the preset second ratio is the first height and the second height of 4: 0.5 to 4: 1.5, respectively. A method of manufacturing a variable focus polygonal lens array in which a lens array manufacturing apparatus can eliminate optical aberration,
Manufacturing a plurality of unit lenses, and
Arranging the unit lenses on the same plane;
Producing the unit lenses
Arranging a plurality of pillars at each vertex of the lower substrate having a polygonal shape,
Arranging a plurality of partition walls respectively connecting the plurality of pillars on top of the plurality of pillars, and
And manufacturing a unit lens by bonding the thin film having the polygonal shape to an upper end of the plurality of partition walls. In claim 12,
Injecting liquid into the unit lens including the lower substrate, the plurality of pillars, the plurality of partitions, and the thin film.
Method of manufacturing a variable focus polygon lens array further comprising. In claim 13,
Injecting the liquid
The height from the center of the thin film to the highest point based on the initial height of the top of the plurality of partition walls is the first height, and from the boundary of the thin film to the highest point based on the initial height of the top of the plurality of partition walls. And injecting the liquid such that the height is a second height and the first height and the second height are preset ratios. The method of claim 14,
Injecting the liquid
And injecting the liquid such that the ratio of the first height and the second height is 4: 2.5 to 4: 3.5, respectively, when the polygon shape is an equilateral triangle. The method of claim 14,
Injecting the liquid
And injecting the liquid such that the ratio of the first height and the second height is 1: 0.75 to 1: 1.25, respectively, when the polygon shape is square. The method of claim 14,
Injecting the liquid
And injecting the liquid such that the ratio of the first height and the second height is 4: 0.5 to 4: 1.5, respectively, when the polygon shape is a regular hexagon.

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