WO2015111981A1

WO2015111981A1 - Stereoscopic sheet having variable perspective viewing angle, and thin layer stereoscopic sheet

Info

Publication number: WO2015111981A1
Application number: PCT/KR2015/000811
Authority: WO
Inventors: 신현재
Original assignee: 신현재; (주)다이아벨
Priority date: 2014-01-27
Filing date: 2015-01-26
Publication date: 2015-07-30

Abstract

The present invention relates to "a stereoscopic sheet having a variable perspective viewing angle and a thin-layered stereoscopic sheet" having a three-dimensional decorative effect, and thus has advantages of having various dramatic visual and design effects by which portions of the sheet, viewed three-dimensionally, create dynamic changes according to the perspective distance, and is manufactured by the following constituent features. The stereoscopic sheet includes convex lenses (11) arrayed on the top surface of the stereoscopic sheet to intersect at regular intervals, and a printed layer (60) formed at the focal distance of the convex lenses forming the thickness of the sheet, wherein: the focal distance of the convex lenses (11) is formed to be at least approximately 3.5 times longer than the pitch; a repetition gap (x5) of a printed pattern (62-1) formed on a portion of a printed area of the printed layer (60) is determined as a pattern gap to allow the impression of depth or protrusion to be sensed as at least a "short-sighted" distance (approximately 10cm-25cm); and the repetition gap (x5) of the printed pattern is less than a parallax gap (x4) at a minimum proximity distance within the "short-sighted" distance by approximately 80% to 98%.

Description

【Specification】

[Name of invention]

Variable Perspective Angle Extrusion Sheets and Thin Layer Sheets

Technical Field

The present invention is a kind of integral photography technology by convex lens, which induces maximization of the perspective angle change according to the change of focal length, and uses the convex lens's image formation principle to change the refraction of light and the change of perspective path. Accordingly, the present invention relates to the production of three-dimensional sheets that are far beyond the visual perception and the limit of the sheet thickness due to the focal length.

Background Art

The basic structure of the conventional techniques is that in the lens sheet formed with the convex lenses cross-aligned, the printed pattern having the same arrangement structure as that of the block lens is formed at a constant focal length forming the thickness of the sheet, Moiré image is three-dimensionally formed by the pattern spacing) is used as a common basic configuration and principle. As a prior art, Utility Model Registration No. 20-0311905 (registered on April 17, 2003) 'Radial Convex Lens Stereoscopic Print Sheet' is a combination of a focal length and a non-focal distance as a stereoscopic expression method using a Voltok lens sheet. We propose a three-dimensional printing method that can differentiate the three-dimensional image of the clear stereoscopic combined image and the image from which unnecessary moire is removed using the difference of the degree of image, and it is basically expressed within the focal length limit of the conventional convex lens. Due to the convex reflections of the convex lenses, the surface of the sheet has to be made of a matte surface, and thus there is a problem in manufacturing a high-gloss quality product. Patent Registration No. 10-0841438 (registered on March 9, 2006) 'Printing flat lens sheet using luminous flux' creates a three-dimensional image by securing a focal length by simply applying a refractive resin flat on the surface of the convex lens. It's limited to how you can. Utility Model Registration No. 20 — 0470351 (registered on December 4, 2013) The three-dimensional ratio display is equipped with two lenses of different convex lens size and radius of curvature. Consists of the same array angle and spacing

Alternative Site (Article 26) However, when water or liquid is applied to the surface of the lens, the three-dimensional image seen in the large lens disappears and a new three-dimensional image is made by the small lens. Therefore, the present invention is to achieve a more differentiated image production, unlike the method proposed and illustrated in the prior art as described above. .

[Detailed Description of the Invention]

[Technical Challenges]

The present invention should be formed of a physical structure that causes a fast perspective angle change to obtain a dynamic image, and in order to be able to observe the combined image by seeing the micro area, a calculation method according to the formation and composition conditions of the combined image, and ' In order to be able to observe the sight within the distance of 'myopia', the intended image is considered by considering the visual path of the sight and the eye, the characteristics formed during the refraction process, and accurately determining the refraction path of light to minimize the thickness of the three-dimensional sheet. Should be able to produce

[Technical Solution] Therefore, the specific problem of the present invention is a method for producing a product with more sophisticated and dynamic visual effect by mitigating the problems of economics and prior art.

1. Structural conditions of convex lens inducing a change in angle of view;

2. A method of obtaining a time difference value that can be recognized as the maximum peak of the combined image at the viewing distance visually observed;

3. To calculate the parallax interval value of the combined images in the minimum close-up perspective;

4. The focal length condition to recognize the stereoscopic combined image applied to the micro area;

5. The conditions under which stereoscopic vision can be observed at a distance within the 'myopia' distance while seeing the stereoscopic distance at or above the 'myopia' distance;

6. The condition that is configured to enable the perspective recognition within the 'myopia' distance from the image that is not recognized at the perspective distance above the 'myopia'

7. Minimize the focal length and meet the conditions for making thin sheets When this is possible, the object of the present invention can be reached. Accordingly, the present invention is a three-dimensional sheet in which the convex lenses are arranged on the upper surface of the three-dimensional sheet at regular intervals and the printing layer 60 is formed at the focal length of the convex lenses forming the thickness of the sheet. The distance is formed at least about 3.5 times longer than the pitch; The repetition interval (x5) of the print pattern 62-1 formed on a portion of the print area of the print layer 60 is made up of a pattern interval in which a sense of depth or protrusion can be felt over a 'myopia' distance (about 10 cm to 25 oii). under; It can be achieved by the three-dimensional sheet, characterized in that the printed pattern repeat interval (x5) is formed about 80% to 98% smaller than the minimum proximity distance perspective parallax interval (x4) within the 'myopia' distance.

[Favorable effect]

The present invention has the advantages of producing the following effects as a three-dimensional sheet and a three-dimensional sheet of three-dimensional viewing angle having a three-dimensional decorative effect. In the screen composition area that is divided into three-dimensional and non-three-dimensional parts when viewed above the specified distance, the size of the moiré image and Causing a change in depth, the two regions appear to be three-dimensionally divided; In three-dimensional sheet perspective, in which clustered printing patterns with different three-dimensional effects overlap, three-dimensional images and three-dimensionally unseen images appear invisible and the three-dimensional images disappear. Effect, or a visual design change effect that causes two images to overlap and produce a third image; As a non-marking mark, the narrow width or line width of the area of letters or figures is 0.3 瞧 ~ 3 隱 or less, and the pattern images printed on the letters or figures can be observed within the 'myopia' distance and at least 1 It is possible to recognize more than two combination images (images below the parent) and to overcome the limitation of focal length to form a minimum three-dimensional sheet thickness or to produce a thin sheet to be used as an injection film. It is effective as a three-dimensional sheet. Therefore, the three-dimensional parts of the display are changed dynamically according to the perspective distance, which is used for furniture, interior, and injection techniques that have various design effects. The decorative sheet used for the surface of the product can be produced. [Brief Description of Drawings]

1 is a cross-sectional view illustrating the perspective path and structural features of the eye through the three-dimensional sheet as an embodiment of the present invention.

Figure 2 is an exploded perspective view illustrating a three-dimensional sheet laminated structure as an embodiment of the present invention. 3 is a cross-sectional view illustrating a general perspective path of the eyeball.

4 is a cross-sectional view illustrating the object observation path through a single convex lens of the eye. Figure 5 is a cross-sectional view illustrating a perspective path of the eye as an embodiment of the present invention.

Figure 6 is a cross-sectional view illustrating a parallax interval for the perspective distance as an embodiment of the present invention. 7 is a cross-sectional view illustrating a parallax interval with respect to a near perspective distance as an embodiment of the present invention.

8 is a cross-sectional view of the three-dimensional sheet is coated with the refractive index layer illustrating the parallax interval with respect to the perspective distance as an embodiment of the present invention.

Figure 9 is a cross-sectional view of the three-dimensional sheet is coated with an oyster cutting resin layer illustrating a parallax interval for the near-view distance as an embodiment of the present invention.

10 is a cross-sectional view illustrating a three-dimensional sheet to ensure a viewing distance more than 'myopia' as an embodiment of the present invention.

11A is a cross-sectional view illustrating a three-dimensional sheet in which a focal length is adjusted by a non-focal length printing layer and a reflective layer as another embodiment of the present invention.

Lib is a cross-sectional view illustrating a three-dimensional sheet in which the focal length is adjusted by the non-focal length printing layer and the reflective layer as another embodiment of the present invention;

11C is a cross-sectional view illustrating a three-dimensional sheet in which a focal length is adjusted by a non-focal length printing layer and a reflective layer as another embodiment of the present invention.

12A is a cross-sectional view illustrating a three-dimensional sheet having a radial surface downwardly curved in a state where the convex lens layer is inverted as another embodiment of the present invention.

12B is a cross-sectional view illustrating a thin layered three-dimensional sheet having a curvature radius surface downward as the convex lens layer is inverted according to another embodiment of the present invention.

13 is a plan view illustrating a configuration form of a printed pattern surface formed on a printed layer of a three-dimensional sheet as an embodiment of the present invention.

Fig. 14 is an enlarged view illustrating the arrangement structure of the figure pattern 62-1 formed as one embodiment of the present invention and the visually recognized shape. FIG. 15 is a cross-sectional view illustrating that a printing layer ₆₅ is formed for applying a water or a liquid material and a multi-perspective effect instead of applying a refractive resin on the convex lens upper surface according to an embodiment of the present invention.

(Explanation of the sign)

I. Variable perspective angle three-dimensional sheet 10. Convex lens

II. Convex Lens 15. Regular Magnifier (Convex Lens)

20. Refractive resin 30. Protective film

40. Eyeball 41. Lens

42. Retina 43. Ocular surface

44. Perspective Intersection Point (Nodal Point) 50. Thick Layer (Transparent Layer)

50-1. Thickness layer (transparent) to non-focal length printing layer and reflective layer

60. Printed layer 60-1. Non Focal Length Printed Layer

61. Pattern printed side

61- 1. Print pattern formed on the pattern printing surface

62. Variable angle recognition pattern surface

62-1. Printed pattern formed on the variable angle recognition pattern surface

65. Second Printing Layer

70. Reflective layer

80. One moiré image (combined image)

D. Perspective Distance

D1. Manifestation distance (myopia)

D2. Perspective distance from eye surface to center of convex lens

D3. Distance from eye surface to fluoroscopy point of lens

D4. Distance from Perspective Intersection of the Lens to the Printed Layer

Dt. Depth sense distance of moire perceived from surface of lens sheet

I. MoiréImage 1 Size

P. Pitch (Lens Array Spacing)

r. Radius of convex lens

t. Focal Length

t l. Focal Length of Regular Lens

t2. Focal Length of Refractory Lens t3. Distance from the curvature radius surface to the reflective layer with a Voltok lens

t4. Distance from reflective layer to 'focal length printed layer' or 'focal distance printed layer' X. Perspective parallax interval

xl. Peripheral Distance Parallax Spacing

x2. Close-up parallax spacing of Voltolens sheet

x3. Perspective distance parallax or more near myopia of sheet with refractive resin

x4. Perspective parallax spacing of sheets with refractive resin

x5. Repeat interval of print pattern.

[Best form for implementation of the invention]

The present invention is described in detail with reference to the drawings in consideration of the structural characteristics of the lens sheet causing the angle of view changes according to the viewing distance and the problem of the conventional three-dimensional sheet as a three-dimensional recognition sheet by the variable angle of view. 1 to 2 are cross-sectional and exploded perspective views illustrating the present invention, wherein the transparent lens Volt. Lenses (：) are composed of a lens layer 10 formed of a vertical pitch array or a 60 degree cross array of a constant pitch distance, On the upper surface of the lens layer 10, a refractive resin layer 20 made of refractive index lower than the refractive index of the convex lens 11 is applied and cured, and the refractive resin layer 20 is made of a transparent UV cured resin or a bond resin. , The protective layer 30 formed by bonding or adhering to the refractive resin layer 20 is preferably used as a protective film or a base layer depending on the purpose of use, but may be made of a removed sieve. The focal length t2 is formed at the lower portion of the lens layer 10 by the refractive index and the curvature radius r of the boltok lenses 11 and the refractive index of the refractive resin layer 20. It consists of transparent resin and forms the thickness layer 50. FIG. On the lower surface of the thickness layer 50, the printing insects 60 transmitted through the lens layer 10 and the refractive resin layer 20 are formed in a graphic or graphic pattern. The figure pattern is to be printed, and the figure pattern is formed in the printing layer 60 is formed by the printing or irregular pattern-a ^ de bo ti tri o. Toshi ⁷ 1 P] ni le -X \ ¾-lz t¾ -sl-oll] ^ led] ¾ o ¾ ol is divided into two parts, so you can see more than 'Near Point of Eye'. In the printing layer 60, a region of the pattern 62-1 by proximity parallax, which can be viewed even at a distance below the 'myopia' and the three-dimensional pattern 61, which is three-dimensionally visible, is formed. As illustrated in FIGS. 3 to 5, the human eye is referred to as a near point of eye, which is the closest distance that a person can see clearly from the eye. Also called). 'Myopia' (D1) is about 10cm for adolescents, about 25cm as adults, and increases to about lm due to presbyopia. Therefore, the perspective 'myopia' (D1) distance that can be seen varies depending on the age, so the present invention will be explained assuming a perspective view of a healthy adult. 3 to 5 illustrate the eye and the path of light of the eye by way of example, illustrating the constitutive difference that the image is perceived in the brain according to the method of visual refraction through the lens and refraction through the lens. have. FIG. 3 illustrates the cognitive situation of a character or a figure farther than the 'myopia' (D1) distance, and the projection of the letter 'A' passes through the convex lens, ie, the lens 41, in the eye. This is an example of a general situation in which the human eye is visually reversed and visually recognized by the brain. Therefore, if you observe from the perspective distance (D) within the 'myopia' (D1), the image is blurred because the eye's retina is not focused. Therefore, as illustrated in FIG. 4, even if the letter 'A' within the 'myopia' (D1) is observed through the magnifier lens 15, the convex lens 15 is focused on the retina. By adjusting the angle of view, the letter 'A' that is projected can be recognized by the brain as in FIG. 5 is a view illustrating a situation in which the perspective view angle stereoscopic sheet of the present invention is projected, and the letter 'A' within the 'myopia' (D1) is configured to be recognized as a combination image by convex lenses. Doing. The small letters 'A' are formed at the position where each Voltolens forming the lens array are in focus, and are composed of the array angle of the lens array, and the perspective parallax interval and the letters 'A' which pass through the center of the convex lenses Recognizing and stereoscopically viewing the combined image of Moire phenomenon by the difference in pattern density to be. As shown in FIG. 2, the combined image seen at this time is an image formed on the retina through the lenses, and it is explained that the image is perceived as if the image is farther than the 'myopia' (D1). Therefore, FIGS. 6 to 9 illustrate the difference in the effects of reaching the present invention according to the configuration method of the three-dimensional sheet by the lens array as illustrated in the drawings as an embodiment of the present invention. There is 'perspective distance (D)', which is the proper distance between the human eye and the object for observing objects. In general, if you want to measure the distance, you will measure the distance from the eye to the object with a tape measure. However, in the present invention, since it is important to obtain accurate perspective and parallax values constituting the three-dimensional sheet, the following criteria are required. That is, the human eye recognizes the image formed on the retina by the lens of lens 41, although there is a slight difference in each person. The object focus of the lens 41 is about 13 mm, and the focal length formed on the retina is About 23 瞧. In addition, since the brain recognizes the image formed on the retina past the central axis of the lens 43, the perspective image is assumed to be 'minimal proximity' to place the object as close to the eye as possible, and as illustrated in FIG. 9. Likewise, the 'perspective intersection' (44), which is reversed from the inner surface of the 'crystal', is formed, so this point will be the starting point of the angle of view that is visible. Therefore, assuming an eyelid thickness of about 3 隱 and a minimum proximity of about 5 諷 to an object, the distance from the eye's surface 43 to the lens's perspective intersecting point 44 is about 7.2 mm for the average person, so The interval must be included. Therefore, the distance from the starting angle of view to the target is about 15.2 瞧, so the perspective distance 'D4' should be calculated including the extension distance 'D3' in the eye. In general, the error in measuring the viewing distance is the main cause of the error by calculating the measured value of the distance from the eye surface 43 to the object. In particular, when measuring the observation distance within the 'myopia' distance (D1), this problem has a significant effect on the numerical value according to the angle of view, as shown in Figures 6 to 9 43) from the eye surface to the distance (D3) from the lens's perspective junction (44) (11) Substitute the measured distance 'D4' including the distance to the centripet (D2) and the distance from the centripet to the printed layer (60) to find the parallax value (X) projected through the centripet of the convex lenses (11). You can get it. That is, as shown in FIG. 5, the combined image of the Moi re phenomenon is viewed in three dimensions by the parallax interval projected through the centers of the convex lenses and the pattern density difference of the repeated figures. Computation of the difference between the repetition interval and the projected parallax value (X) in advance determines the size, depth, or projection of the stereoscopic image perceived by the difference, so that the parallax value (X) projected through the center of the convex lens is determined. By precomputing, the intended effect can be obtained. In general, the moire stereoscopic technique using a lens array focuses on the lens pitch.

It is a conventional method to be produced by printing pattern dot spacing in the range of 98% to 102%. However, this criterion is a method that does not apply the change in perspective distance. Therefore, it is necessary to determine the size and spacing of the recognized pattern according to the design intention, but to find out the value of the pattern depends on the perspective distance of the object projected mainly from outside 1M and the object projected from near distance within 1M. It is preferable that the distance between print patterns is determined by the perspective distance provision. Therefore, based on the 'perspective vertex parallax interval (xl)' according to the perspective distance, the printing pattern interval value of depth and protrusion must be determined based on this criterion, and slightly larger or smaller based on this 'perspective vertex parallax interval' The difference in depth level of the three-dimensional sheet is controlled by the difference in the density intervals of the small print patterns. However, if the projection patterns 61 and 62 printed with the density of 'perspective vertex parallax interval' are projected at a predetermined perspective distance, it is impossible to perceive ¾ sensation at all at this perspective distance. In other words, the moiré 70 is generated from the parallax gap through the convex lenses and the density gap of the printing pattern, and the three-dimensional effect should be represented. In the perspective, the three-dimensional moire 80 can be recognized because the distance between the parallax and the printing pattern is the same. It is absent and eventually becomes a perspective vertex (or infinite distance awareness) interval. Also, the perspective vertex parallax interval is different from the lens pitch interval. It cannot be the same and can be obtained by the following formula. Equation 1.

X = P (D2 + D3 + t2-r) / D2 + D3 Therefore, the present invention accurately finds the perspective vertex parallax interval according to this observation distance, and rather, by using the characteristics of the parallax interval that changes according to this observation distance, It is possible to produce 'stereocognitive sheet by variable angle of view' by maximizing the perceived change according to the change of observation perspective distance. 6 to 7 illustrate an embodiment of the present invention using a general convex lens sheet. For example, assuming the configuration illustrated in FIG. 6, the lens pitch P is lmm, the observation distance D is 1200 隨, the focal length tl is 1.8 瞧, and the radius of curvature r is 0.6mm. In this case, the value of the see-through peak parallax interval (xl) obtained by the above formula is 1.001 mm. As shown in FIG. 7, when the observation distance is (D) 250 mm under the same conditions, the parallax interval (x2) becomes 1.0048 mm, resulting in a 0.38% difference in the parallax interval according to the observation time point. However, the three-dimensional image recognition technique by the moiré 80 can recognize a solid three-dimensional feeling at a density difference of about 1% to about a perspective vertex parallax interval, and within a density difference of about 1% to 2% Extremely three-dimensional changes occur even with small numerical changes. Therefore, the difference in the parallax values calculated above is only 0.38% of the density difference of less than 1%. Therefore, the result of the extremely small angle of view change that is not enough to recognize the stereoscopic image change according to the viewing distance is inevitably obtained. It can be seen that the objective of the present invention cannot be achieved with a three-dimensional sheet having a general focal length conventionally used. Therefore, as a way to solve this problem, the longer the focal length, the better the angle of view change. Therefore, in the same situation as the above lens condition, only the focal length is changed to 5 隱. Assuming that the case of Fig. 6 is calculated by the above formula, when the observation distance (D) is 1200mm, the perspective vertex parallax interval (xl) according to the observation position is about 1.0036mm, and again under the same conditions, the focal length of FIG. Is calculated as assuming that the viewing distance is (5) and the observation distance is 250 麵, the parallax interval (X) is 1.0179 隱, resulting in a change in perspective angle of about 1.4%. It can be. In other words, the 1.4% change in the parallax spacing becomes an important factor to produce a very active 3D image change as the focal length becomes longer even with the same observation point change. Therefore, the present invention obtains the perspective vertex parallax spacing (xl) value and the parallax spacing (x2) value according to the change of the perspective distance according to the 'calculation', and the preferred focal length (tl) for obtaining the two parallax spacing values is a lens. It is desirable to produce a three-dimensional sheet that is about 3.5 times more than the pitch (P), and the longer the focal length, the greater the disparity difference according to the viewing distance. 8 to 9 is an embodiment of the present invention, the utilization of such a product needs to be produced within a shorter observation distance, for example, the application of a small product holding by hand like a smartphone surface material, Since the thickness of the sheet should be made thinner, it is a sheet having a focal length of about 0.8 画. For example, the pitch is about 0.1289mm, the radius of curvature of the lens is about 0.294 画, and the refractive index is 1.48. It is assumed that a fine micro lens should be manufactured. By the way, the production of such a microlens array sheet is required to produce a mold for mass production, and the cost must be invested, and to secure a radius of curvature for adjusting the thickness is a very difficult task and cumbersome situation. Therefore, the present invention is to produce a lens layer 10 of the curvature radius (r) of about 0.06 議, which is easy to manufacture as a means to solve this problem, the focal length (tl) by the curvature radius of 0.294mm By applying and curing the transparent refractive index resin 20 having an index of refraction of about 1.45 to the upper surface of the lens layer 10, the refractive index of 1.58 of the lens and the refractive index of 1.45 of the refractive index of the refractive index of the refractive index of the refractive index of the resin is used. You can get 0.8mm. 8 illustrates that the refractive resin layer 20 is formed at a position in contact with the surface of the botox lens layer 10 as a three-dimensional sheet according to an embodiment of the present invention. As described above, by forming the focal length t2 longer than the pitch P of the lens, the effect according to the angle of change is easy, so that the focal length t2 is 0.8 隱 when the lens pitch P is 0.1289 画. The focal length (t2) of about 6.2 times the pitch (P) is formed. As shown in FIGS. 8 to 9, the viewing distance is D4 = D2 + D3 + t2-r, so the viewing distance (D4) is 250 mm. Assuming that the time is calculated according to the above formula, x3 = 0.1289 X (242.06 +7.2 +0.8 -0.06) I 242.06 +7.2 = 0.12925 Perspective peak parallax interval (x3) is about 12925 隱. 9 is an example of observing the three-dimensional sheet of the present invention at a viewing distance (D4) within the 'myopia'. The shorter the viewing distance, the shorter the field of view change will be. Therefore, it has been mentioned above that the perspective from the starting point of fluoroscopy to the position of fluoroscopy object must be accurately calculated. Therefore, the distance between the intraocular perspective intersection (44) and the eye surface (43) branches is about 7.2 mm, and if you put the eyelid, eyebrows, and facial skeleton away from the eye surface, you can see the object surface as much as possible. Assume that 시트, the thickness of the sheet is about 0.8 薩, so the correct see-through distance D4 is about 15 mra. Of course, the method that can be seen with the naked eye within the 'myopia' is as described in FIG. 5, and since the extension line of the straight line passing through the centroid of the convex lenses 11 from the intraocular perspective intersection 44 is the 'perspective path'. When the radius of curvature (r) of the convex lens is about 0.06 隱, the distance (D2) of the centripetal branch of the convex lenses (11) from the eye surface (43) is 7.06 腿, and at the focal length (t2) Subtracting the radius of curvature (r), it is 0.74 瞧. Therefore, if the parallax interval (x4) through which the three-dimensional sheet is projected through the minimum perspective distance is calculated by the above formula, the numerical value of 0.1289 (7.06 +7.2 + 0.8-0.06) I 7.06 + 7.2 = 0.135 ms is obtained. Can be. Therefore, a contrast difference of about 4.6% appears when comparing the perspective vertex parallax interval (x3) of about 0.1393 mm and the parallax interval (X4) of near vision of 0.11293 mm. Eventually, a three-dimensional pattern (62-1) with a pattern spacing of about 4.6% is printed, with a parallax interval (x4) of 0.13554. In this case, the perspective can be viewed while recognizing a solid three-dimensional effect by the changed perspective angle. However, in the present invention, since the three-dimensional effect is recognized even at a distance near the 'myopia', and the parallax (x3) value of the printing pattern must be obtained to recognize the three-dimensional sense even at the minimum close distance within the 'myopia', the method is as follows. Seeing things means that only objects that are above the 'myopia' distance (D1) can be seen clearly, and the three-dimensional sheet of the present invention can produce a sheet capable of identifying a perspective even at a minimum proximity within the 'myopia'. Mentioned above. The principle is that since the sheet itself of the present invention is made by the botox lenses 11, it projects the object within the 'myopia' (D1) with the naked eye as illustrated in the description of Figs. If you can feel as if you are seeing an object that is more than your 'myopia', then it is solved. Therefore, if the depth of the three-dimensional moire 80 seems to be about 25cm behind the surface of the sheet, of course, even if you look into the surface of the sheet, it will be as if you are seeing more than 'myopia'. Therefore, the depth of the three-dimensional image than the surface when viewed from the perspective distance more than the near-optical distance (about 10cm ~ 25cm) should be arranged, the arrangement interval of the Voiddot print pattern should be configured. Therefore, Figure 10 illustrates a temporal example of a three-dimensional sheet to ensure a viewing distance more than 'myopia' of the present invention.

The configuration of the printed pattern to recede more than 25cm can be varied depending on the size, curvature radius, and focal length of each botox lens.For example, a lens sheet with a convex lens pitch of 0.254 腿, curvature radius of 0.155 瞧 and a refractive index of 1.585 The focal length U is about 0.42 0.4. In this case, when the refractive index of the refractive resin 20 coated on the surfaces of the convex lenses 11 is 1.506, the focal length t2 becomes about 3.1 μs, and the sheet having the lens pitch of 0.254 mra and the focal length of 3.1 μs The focal length is the same as the curvature radius of the lens is about 1.144mm. The components that make the depth of field (Di) of the combined image, which shows the focal length three-dimensional, retreat more than about 250mm from the 'myopia' distance, are characterized by a long focal length, It can manufacture by a formula. Equation 2

Di = (t2-r) (D2 + D3) II [P (D2 + D3)-(t2-r) I] Therefore, the stereoscopic image perceived at about 40cm is (3.1-1.144 ) X 400 XI / [0.254 x 400-(3.1-1.144) x I] 250 圆, which is I-19.978 mm. That is, a stereoscopic image having a repetition interval I of 19.978 mm for one moiré 80 is accurately recognized as a sense of depth (Di) of about 250.000467 mm by the above equation, and a sense of depth (Dt) of 250 μs or more is secured. Is about 7.38 times thicker than the existing focal length (tl), making it easy to manufacture. After all, this can be seen clearly in the moiré (80) image at all perspective distances before and after the 'myopia' distance. In addition, this is calculated by Equation 1, and since the vertex parallax gap (x3) of about 0.2541 mm represents the perspective or infinity distance, the printed pattern is recognized as the perception depth (Di) of about 250 mm. The interval of (x5) must be smaller than the vertex parallax interval (x3), and the convex lens because the three-dimensional pattern 80 recognized as a stereoscopic combined image, that is, the size under one hat is combined by the respective convex lenses. By calculating the number of times and calculating the print pattern spacing (x5), it is about 0.2508 mm. Therefore, it can be seen that it is formed about 98.7% smaller than the pitch 0.254 隱, which means that the longer the focal length is longer and the shorter the short distance is according to the person, the wider the difference becomes. Therefore, the present invention can be obtained only when the focal length is farther than the general lens sheet, but the glass interior products of 3mm or more are used in the decorative products for architectural interiors, but the sheet sheet used for electronic products is used according to the product. It will need to be made thin. Therefore, the farther the focal length of the element used in the present invention is to increase the thickness of the three-dimensional sheet, a method that needs to be made thinner the thickness of the sheet as needed. 11A to 12B illustrate a method according to another embodiment of the present invention, in which the focal length t2 is extended by the refractive resin 20 applied to the surface of the convex lens layer 10 so that the sheet thickness becomes too thick. And since workability may occur, a method of reducing the thickness of the sheet under the same focal length conditions is as follows. As illustrated in Figs. 11A to 11C, the reflective layer 70 is formed between the convex lens and the focal length t2 to form the sheet thickness from the convex lens to the reflective layer, and the printing formed at the original focal length t2. The same distance t4 on the Voltolens 11 from the reflective layer 70 by the distance t4 from the reflective layer 70 to the original focal length t2 instead of the position of the charge 60. The non-focal length printed layer 60-1 is formed on the substrate. The position of the reflective layer 70 is formed at the thickness of almost half or less from the surface of the refractive resin 20 formed on the convex lens layer 10 to the original focal length t2, and the vortex lens The incident light of (11) is reflected by the reflective layer 70 so as to focus on the newly formed non-focal length printing layer 60-1. That is, the path through which the printed pattern 62-1 formed in the printed layer 60-1 passes through the printing worm 60-1 having a non-focal length from the naked eye, passes through the center of the convex lenses 11, and reflects the reflective layer ( 70 reflects the patterns 61-1 and 62-1 printed on the non-focal length printing layer 60-1 interval t4, reflected from the reflective layer 70 and again passing through the botox lenses 11 from the reflective layer 70. ， It can produce three-dimensional effect of the present invention with a thickness (t4-l) of less than half the thickness of the original three-dimensional sheet. In addition, in the process of passing through the convex lenses 11 by reflecting from the reflective layer 70 again, the focus becomes narrow again and the focal length becomes slightly shorter. The shorter the distance to or the shorter the transparent layer 50-1, the shorter the focal length, and thus the advantage is that even if it is less than 1/3, the thickness of the original three-dimensional sheet can be further reduced. It can also be used as a thin three-dimensional sheet for viewing the pattern (61–1) mainly. If the focal length is too short, the three-dimensional feeling felt by the naked eye is also shortened. In order to see the recognition pattern surface 62-1, the non-focal distance printing layer 60-1 is formed as close as possible to the surface of the convex lens to maintain about 1/2 of the thickness of the original three-dimensional sheet, or ， Can be manufactured by adjusting the correlation between the refractive index of the boltok lens, the radius of curvature and the refractive index of the refractive resin. Of course, when the first transmission of the print pattern 62-1 from the eye in the see-through path is not recognized by the naked eye, it is a combination of the points that are half-reflected and focused on the printed layer 60-1, so that the reflector 70 Distortion does not occur only when the mirror effect is good, so it is preferable to use the metal deposition method to form the reflector 70. In FIG. Lib, the protective layer 30 is formed on the convex lens layer and the non-focal distance printing layer 6 is formed on the protective layer by the application method of the three-dimensional sheet illustrated in FIG. 11A. The non-focal length printing layer 60-1 is printed with the general printing, the three-dimensional pattern printing surface 61, and the variable angle recognition pattern surface 62. Depending on the purpose, the general printing is independent of the focal length, and thus the protective layer 30 It is preferable to maintain the surface gloss of the general printing surface by the protective film 30 by printing on the lower surface, and the surface of the convex lens layer 10 and the protective layer 30 by the refractive resin 20. The lower surface can be used to adhere to each other. Therefore, as illustrated in FIG. 11C, the lower surface of the protective film 30 is the focal point of arrival, and the non-focal distance printing layer 60-1 is formed by printing on the lower surface of the protective film 30 to be convex. The lens layer ₁₀ is adhered to the surface and can be applied and manufactured by user convenience. 12A shows another method of the present invention, wherein the curved radius surface is turned downward with the convex lens layer 10 turned upside down, thereby adhering or adhering to the thickness layer 50-1 of the sheet by the refractive resin 20. Non-focal distance printing layer 60-1 is formed on the upper layer surface of the inverted Voltolens layer, and the center of gravity of the lens changes as the radius of curvature of the lens changes. As the angle of view is changed from the center of gravity as shown in the drawings, there is an advantageous effect that the difference in the parallax seen through it becomes larger. Of course, this method can be used in the three-dimensional sheet illustrated in FIG. 10, and the focal length and the thickness of the sheet can be obtained. Figure 12b is another embodiment of the present invention, illustrates a method that can be produced with a minimum thickness of a three-dimensional sheet that can be visually viewed. The convex lens layer 10 is turned upside down, and the surface of the radius of curvature is configured downward. On the lower surface of the convex lens, the refractive resin 20 is formed to form a plane, and the reflective layer 70 is formed on the surface of the refractive resin 20. It is configured to reflect the light of the incident light. However, as illustrated in the drawing, it can be seen that the thickness of the three-dimensional sheet is remarkably thinner, because the incident light passes through the convex lens 11 and is reflected from the reflective layer 70 and passes through the convex lens again to pass the non-focal length printing layer ( In the process of reaching 60-1, the convex lens penetrates twice and is perceived by the naked eye. Therefore, as mentioned above, the sheet thickness that can be perceived by the naked eye compared to the original focal length (t2) once passed through the convex lens can be manufactured as a thin three-dimensional sheet that is significantly thinner than 1/3 thickness. will be. Of course, the non-focal length printing insect 60-1, as illustrated in Figures lib to 11c above, to produce the protective film 30 through printing on the upper or (and) lower surface of the protective film 30. It is a matter of course that it can be produced in any way by further bonding the protective film 30 (or irregularities molded) printed on the upper surface of the transparent layer 50-1 to be focused. FIG. 13 illustrates, by way of example, the configuration of the graphic design of the three-dimensional sheet and the configuration of the print patterns 61-1, 62-1. Another advantage of the present invention is that as a non-representative function, a pattern 62-1 image printed on a very small 'area area' can be identified by a minimum proximity view. 'Small area' perspective in the present invention is a part of the three-dimensional printing surface (61, 62) formed in the printing layer 60, the minimum width of the shape consisting of figures, lines, characters, etc. is about 3 醒 or less. In other words, the pattern shape formed in such a small area is closely viewed to allow one or more moires 80 to be recognized as a combination image. The smaller the area used for the maximum effect, the smaller the better. Therefore, the present invention is capable of seeing even a very small area of the minimum width of 1 瞧 or less forming a figure, if it is to recognize the image 80 printed therein can be produced by the following method.

As mentioned above, at least one combination image 80 should be visible within the minimum area projected as mentioned above. The smaller the lens size and the longer the focal length, the longer the combined image is visible. It can be adjusted to make the size small. ^J Therefore, the size of the graphic pattern 80 perceived by the naked eye is also very important. Since the size of the combined image projected and perceived is determined by the interval and the focal length of the printed pattern, the calculation formula is used in FIGS. 6 to 7. As already illustrated, when the typical convex lens sheet is applied, the focal length (U) is about 0.163 隱 because the pitch (P) of the lens is 0.1289mm, the refractive index is 1.58, and the radius of curvature (r) is 0.06 瞧. Assuming that the minimum near vision distance (D2 + D3) is 15 microseconds, the parallax (x2) between the lenses at the minimum proximity distance is about 0.1298 mm. In addition, when calculating the vertex perspective parallax gap (xl) between lenses at the perspective distance (D2 + D3) of 400 麵, it becomes about 0.12893 麵, so this value is a reference for the pattern interval (xl) to be printed. It should be printed smaller than 0.12893mm because it should exhibit a depth of about 250mm distance. Therefore, if the size (I) of one moiré having a depth of 'myopia' distance of about 250 [mu] s is calculated according to the above equation, I = 192.535 [mu] s and the printed pattern armor (x5) projected is 0.12881 [mu] s. Therefore, when calculating the parallax (x2) projected at 15 ms of the minimum proximity distance (D2 + D3), about 0.1298 ms, the printing pattern of 0.12881 ms is one moiré (80) pattern size by the proximity projection parallax (x2). 0 is created, which is observed to be about 7.6 mm in size, so that the minimum width of the figure should be at least about 7.6 mm. There is a problem that cannot be observed properly. Therefore, the present invention will be described assuming that the focal length t2 is changed from 0.163 ms to 0.8 ms under the same configuration conditions. When the pitch P of the lens is 0.1289 같다, the radius of curvature r may be equal to about 0.295 mm. Therefore, by using the above formula (2), if the depth of vision and the moire (80) pattern size (i) are more than 'myopia' at the perspective distance 400mro, (0.8-0.295) 400 XI / [(400 X 0.1289)-(0.8 -0.295) Since I] = 250, I = about 39.27 翻. Therefore, since one moiré (80) pattern size (i) is 39.27 microns at a depth Dt of about 250 microns, the interval of the printed pattern (x5) is about 0.128478 microns. When the throwing distance (D2 + D3) is 15 ，, the calculated parallax (x4) between the lenses at the minimum close range is about 0.1353 隨, so the perspective of the print pattern (x5) is about 0.128478 瞧. When one calculates the size of a stereocognitive pattern with one moiré (80) size (I), it becomes about 2.548 mm, so that a small area of about 3 薩 has a minimum width of about 3 μs. More than one can be observed. Accordingly, as illustrated in the drawing of FIG. 13, the three-dimensional sheet according to the exemplary embodiment of the present invention is illustrated, and the printing layer 60 disposed below the botox lens layer 10 may have the printed pattern surface 61 or (and ) The variable angle recognition pattern surface 62 is formed and printed (or unevenly molded). The pattern printing surface 61 exhibiting a special effect by the Voltok lens is formed of figure patterns 61-1 configured to exhibit effects such as stereoscopic effect, motion, color conversion, and the like. 62 is formed of figure patterns 62-1 configured such that the moiré pattern image 80, which appears in three dimensions due to the change of angle of view according to the viewing distance, is changed and perceived according to the viewing distance. Any other text or figure that has no effect can be used according to design intent. Thus, as illustrated as an embodiment in Figure 13, the letter 'M' is formed in a small circle located in the upper left. On the surface 61 of the letter 'M', the figure pattern of the 'variable moving angle recognition pattern surface' 62 formed on a small circle around it as a part showing a general stereoscopic effect or an effect such as motion or color conversion. According to 1) it is configured to look differentiated according to the viewing distance. The large letter 'M' formed at the center of the sheet is a 'variable angle of view' The pattern pattern 62-1, which constitutes the edge pattern surface 62, and is made to be differentiated by the figure pattern 61-1 formed on the entire base surfaces 61 and 62 of the sheet or the base surface. The figure pattern 62-1 formed on the whole is composed of the difference pattern of parallax density different from the figure pattern 62-1 formed on the large letter 'M' to recognize a differential change according to the viewing distance. It can be produced. Particularly, fine letters are formed in a circle on the upper right side. As illustrated in an enlarged view of the drawing, the width of an area constituting two lines of words having a thickness of 0.3 麵 is about 3.8 mm. This configuration is such that the above-mentioned very small area lines are combined, and a figure pattern 62-1 is formed to form a 'variable angle of view perception pattern surface' 62 within a 0.3 mm line width. In fact, such a configuration is a structure in which the moiré pattern image 80 cannot be visually recognized when the three-dimensional figure pattern is constructed. However, when the three-dimensional sheet is viewed as close to the eye as possible, the present invention can visually check the image 80 under the parent of the combination of the figure pattern 62-1 composed of 'M' as illustrated in the drawing. will be. The reason is that it is virtually impossible to see more than one under the hair at 0.3mm perspective area, but the present invention has already shown that the depth Dt of the hair that recognizes the figure pattern 62-1 is 'myopia'. It is configured to be able to see the abnormal distance, and since the position of the object lies within the 'myopia' of the lens 41, only the moiré image 80 of the figure pattern 62-1 is formed, and the configuration around the perspective area is shown. The screen looks like a translucent masked effect. That is, the image of the image formed on the retina 42 is only recognized by the pattern 62-1 printed in the area of about 0.3! 蘭, and the remaining peripheral screen cannot be formed by the lens on the retina. Is to look cloudy, and to perceive it as translucent. Therefore, this makes it possible to recognize the light automatically differentiated by the brain as the effect of a person making a peek through a black hole and looking into it.The brighter the opposite side through the needle hole, the clearer the view can be. to be. Therefore, the three-dimensional sheet of the present invention in close-up perspective facing the light, as a perspective by the 'back light' If you observe the sheet, you can see more clearly. Also, 'Variation angle of view recognition pattern surface

'Even though the figure lines of (62) are not close to each other like the enlarged drawing, at least one image of the figure pattern (62-1) formed within at least about 0.5 mm of the area of a single line by close-up projection is used. It can be recognized as). FIG. 14 is a view illustrating an arrangement of convex lenses projected within a 'myopia' distance and an arrangement of a figure pattern 62-1 formed on a 'variable angle of view recognition pattern surface' 62 according to an embodiment of the present invention. The shape which becomes is illustrated and demonstrated. The arrangement of the figure pattern 62-1 has the same configuration as the arrangement angle of the convex lens 11 and consists of a vertically crosswise arrangement of 45 degree inclination. However, the array spacing (x5) has a smaller density than the array spacing (P) of the convex lenses (11), and observes more than one moiré (80) perceived in seeing the 'variation angle of view recognition pattern surface' (62). As a possible size, it is about 80% -98% smaller than the parallax (χ4) spacing which projects the center of convex lenses 11 at the minimum close range. As shown in the figure, portions of the figure pattern 62-1, which are reflected in the focus of the respective convex lenses 11, are enlarged, and the enlarged images are connected to each other so that one image of the moire 80 is shown. It is to form and recognize. Of course, since the cross-arrangement angle and the slope of the convex lens can be changed by the operator as much as possible, the cross-array angle and the slope of the figure pattern 62-1 also have the same structure and are made within the density interval of the present invention. FIG. 15 illustrates an exemplary embodiment of the present invention, in which water or a liquid material is applied instead of applying a refractive resin on an upper surface of a convex lens, and a printing layer 65 is configured for a multiple perspective effect. The second printing layer 65 is formed between the convex lens ray 10 and the printing layer 60, and the printing 61 constituted here is composed of a figure pattern 61-1, and the focal length of the convex lens is It is printed (or uneven molded) at the position of T1. The surface of the pattern printing (61) exhibiting special effects by the convex lens is configured to exhibit effects such as stereoscopic effect, motion, color conversion, etc., and the three-dimensional moiré pattern image (80) that is three-dimensionally visible on the print layer (60) is a viewing distance. Depends on And figure patterns 62-1 for directing them to be perceived. Therefore, the application of water or liquid material on the surface of the convex lens for more dynamic presentation means that the variable production is performed on the fly. For example, assuming that the user applies the liquid material irregularly, the applied part and the application If the moiré pattern image 80 of the uncoated portion is produced to be perceived by changing the perspective distance, the uncoated portion produces a differential stereoscopic or motion image, According to the intention of the user, there is an advantage such that the new production can be instantaneously by applying and wiping each time. The variable viewing angle stereoscopic sheet and the mono-thin sheet of the present invention are not limited to the above-described embodiments and can be modified in various ways within the scope of the technical idea of the present invention.

Claims

【Scope of Claim】

[Claim 1]

On the upper surface of the three-dimensional sheet, the volcanic lenses are arranged in a cross arrangement at regular intervals, and the printed layer 60 is formed at the focal length of the convex lenses that make up the thickness of the sheet. The focal length of the volcanic lenses 11 is greater than the pitch. It is formed about 3.5 times longer; The repetition interval (x5) of the printing pattern (62-1) formed in a portion of the printing area of the printing layer (60) creates a sense of depth or protrusion.

It consists of pattern intervals that can be felt over a 'myopic point' distance (approximately 10cm to 25cm); A three-dimensional sheet, characterized in that the printing pattern repetition interval (x5) is formed to be about 80% to 98% smaller than the minimum close-distance perspective parallax interval (χ4) within the 'myopic point' distance.

【Claim 2】

According to claim 1, a refractive resin having a lower refractive index than the refractive index of the convex lens is applied (cured) to the upper surface of the convex lenses, so that the refractive index (η) is 1.35 or more, and the focal length is formed to be 3.5 times longer than the pitch of the lens. A three-dimensional sheet made of.

[Claim 3]

The three-dimensional sheet according to claim 1, wherein water or a liquid material lower than the refractive index of the convex lenses is applied to the upper surfaces of the convex lenses, and the focal length is formed to be at least 3.5 times longer than the pitch of the lenses by having a refractive index (η) of 1.3 or more. .

【Claim 4】

The three-dimensional sheet according to any one of claims 1 to 3, wherein the convex lenses are arranged in a vertical cross array or a 60 degree cross array.

[Claim 5]

The three-dimensional sheet according to any one of claims 1 to 3, wherein the pattern printing surface (61) or the printed figure and the variable viewing angle recognition pattern surface (62) are formed on the printing layer so that they can be recognized separately.

【Claim 6】

The three-dimensional sheet according to claim 5, wherein the print pattern (62_1, 61-1) of the pattern print surface (61) or the variable angle of view pattern surface (62) formed on the print layer is displayed by printing, unevenness, deposition, etc. .

[Claim 7]

The three-dimensional sheet according to claim 5, wherein the printed patterns (62-1, 61-1) formed on the printed layer are formed by double overlapping.

【Claim 8】

The three-dimensional sheet according to any one of claims 1 to 3, wherein the minimum width of the line or figure forming the variable angle of view pattern surface (62) formed on the printed layer is formed to be less than lmm.

[Claim 9]

The method according to any one of claims 1 to 3, wherein the printed pattern (62-1) of the variable viewing angle pattern surface (62) has a 'myopia point' according to the perspective parallax passing through the centripetal center of the convex lens according to the perspective distance. A three-dimensional sheet characterized in that it can recognize three-dimensional moiré (80) even beyond the distance and is formed to recognize three-dimensional moiré (80) even within the 'myopic point' distance.

【Claim 10】

The method according to any one of claims 1 to 3, wherein a reflective layer (70) is formed between the convex lens and the focal distance (t2) to form a sheet thickness from the convex lens to the reflective layer, and the printing formed at the transverse distance (t2). Instead of the layer ₆₀ , a _non _- focal distance printed layer ( 60-1) is formed,

A thin layer three-dimensional sheet, characterized in that the spacing of the printed patterns formed on the non-focus distance printed layer (60-1) is formed so as to be perceived as a sense of depth or protrusion of 25 cm or less.

【Claim 11】

The thin-layer three-dimensional sheet according to claim 10, wherein a protective layer (30) is formed on the upper part of the Boltock lens layer, and a non-focal distance printing layer (60-1) is formed on the lower surface of the protective layer.

【Claim 12】

The method of claim 10, wherein a protective layer (30) is formed on the upper part of the convex lens layer, a non-focal distance print layer (60-1) is formed on the upper surface of the protective layer, and a general print is formed on the lower surface of the protective layer. Features a thin layer three-dimensional sheet.

【Claim 13】

The method of claim 10, wherein the convex lens layer (10) is in an inverted state and the curved radius surface is configured downward, and is formed by adhesion or adhesion to the thick layer (50-1) of the sheet by the refractive resin (20), and the inverted convex A thin-layer three-dimensional sheet characterized in that a non-focal length print layer (60-1) is formed on the upper surface of the lens layer.

【Claim 14】

The method of claim 2, wherein the bolt/lens layer (10) is an inverted plate with the curved radius surface facing downward and is formed by adhering or adhering to the thick layer (50) of the sheet by the refractive resin (20). Three-dimensional sheet.

【Claim 15】

According to any one of claims 1 to 3 and claim 10, when viewing from a distance above the 'myopic point', a three-dimensional sense of depth or prominence can be felt beyond the near point distance, which is a component that can feel the sense of depth or prominence beyond the near point distance, and is a perspective parallax. The standard perspective distance to measure is the distance of about 7.2mm from the surface of the eye (43) to the perspective intersection point (44) inside the eye (D3), the distance from the surface of the eye to the centroid of the convex lens (D2), and the centroid of the convex lens. It is the distance (t-r) from the printed layer 60, and is formed by adjusting the rough density interval (x5) of the printed pattern (62-1) according to calculation based on the perspective distance measurement.

【Claim 16】

In the three-dimensional sheet composed of convex lenses (11) arranged in a cross arrangement at regular intervals, the curved radius surface of the convex lens layer (10) is configured downward; On the lower surface of the convex lens, refractive elements 20 applied to the surface of the convex lens layer 10 are formed to form a plane; A reflective layer (70) is formed on the surface of the flat refractive resin (20): a transparent layer (50-1) is formed on the upper part of the convex lens forming the focal length thickness by reflecting from the incident light on the reflective layer (70): transparent layer (50) -1) A thin layer three-dimensional sheet characterized in that a non-focus distance printed layer (60—1) is formed on the surface.

[Claim 17] The method according to any one of claims 1 to 8, wherein a second printed layer (65) is formed between the Boltock lens layer (10) and the print layer (60), and water or liquid material applied to the Boltock lens and its upper surface. The figure pattern 62-1 of the printed layer 60, which is transmitted by the refractive difference, shows a change effect according to the viewing distance, and the second printed layer, which is transmitted by convex lenses in the area where the material is not applied ( A three-dimensional sheet characterized in that the perspective effect of the figure pattern (61-1) formed in 65) is configured to be transparent in a differentiated manner.