JP2015102710A - Stereoscopic display forming body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional display forming body that can be easily manufactured, cannot easily infer the existence of a virtual image, and has a three-dimensional and dynamic effect without an optical sheet. To do. According to the present invention, the first image is observed from a predetermined angle with respect to the base material by arranging a plurality of concave first information lines having a glittering property on the base material. In this case, the first image having the color is visually recognized in three dimensions, and in the transmitted light, the three-dimensional display formation body is visible as a colored pattern. [Selection] Figure 1

Description

  In the present invention, when light enters, a stereoscopic image using binocular parallax appears, and in addition, a stereoscopic image is dynamically visually recognized according to a change in the incident angle of light, and an image colored with transmitted light. Relates to the formed body.

  With recent developments in digital devices such as scanners, printers, and color copiers, it has become possible to easily produce elaborate copies of precious printed matter. In order to prevent such duplication and forgery, anti-counterfeiting technology is required. As an example of such a technique, there is a three-dimensional display forming body in which a dynamic image appears depending on an observation angle, or a recording medium in which information based on a specific color appears depending on the observation angle.

  As an example of this, when characters, images, etc. are displayed on a diffraction grating with an outline, and then the inside or outside of the outline is formed by a diffraction grating consisting of a smooth curve group and the viewpoint is changed. In addition, there is disclosed a display body characterized in that a position that appears bright by a diffraction grating on the inner side or the outer side of a contour is visually recognized by changing smoothly (see, for example, Patent Document 1).

  Also, in the diffraction grating, a basic pattern formed by a plurality of fine lines and an image having the same shape as the basic shape are combined to form a single pattern, and a plurality of patterns are intermittently formed around the single point in the rotation direction. Thus, a three-dimensional display formed body that is visually recognized as if a three-dimensional pattern is rotating is disclosed (for example, see Patent Document 2).

  In addition, as a recording medium that expresses information by a specific color depending on the observation angle, a recording layer in which a plurality of layers having different colors are sequentially stacked and a plurality of holes having a forming angle and a depth are formed based on the information to be provided. There is disclosed a recording medium that is a medium and expresses specific information depending on the difference in the color of the bottom layer depending on the observation direction of the hole (see, for example, Patent Document 3).

JP 06-0667608 JP2011-022478 JP 2003-019884 A

  However, the technique of Patent Document 1 is a diffraction grating that visually recognizes a change due to luminance by forming a smooth curve inside a character, an image, etc., and a position where a character, a figure, etc. appears shining simply moves left and right. Therefore, it is difficult to visually recognize the characters and figures themselves, and it is difficult to change the colors.

  In addition, since the technique of Patent Document 2 is stereoscopically viewed based on the principle of stereogram, it is necessary to always form two identical patterns side by side, and a plurality of patterns for dynamic visual recognition are intermittent. Is formed. Therefore, since a stereoscopically viewed image is also viewed intermittently when viewed dynamically, it cannot be viewed by moving continuously, and it is difficult to produce a change due to color. .

  Further, the technique of Patent Document 3 is provided with information based on a color difference due to holes, and there is no dynamic change in the image, and it is difficult to form a pattern.

  The present invention is intended to solve the above-described problems, and a three-dimensional and continuous color pattern showing a dynamic visual effect appears in the observation direction, and under transmitted light, under reflected light. It is an object of the present invention to provide a three-dimensional display forming body in which color patterns of different colors appear.

  The present invention provides a first color layer having a predetermined transmittance laminated on one surface of a transparent substrate having light and dark flip-flop properties, a color different from the first color layer, and the same or a predetermined transmittance. A base material in which a second color layer having different transmittance is laminated on the other surface, and a first image that can be stereoscopically viewed is formed on at least a part of the first color layer or the second color layer, The first image is composed of at least one first element region constituting the first image, and the first element region is a circular arc-shaped first element having a start point, a vertex, and an end point arranged in a line. An arc-shaped first information line consisting of one information line is a concave-shaped light-and-flip flip-flop formed by completely removing the color layer forming the first image and removing a part of the transparent substrate. This is an image line that has the property of being a The position where the incident light from the light source is reflected gradually moves on the arc-shaped first information line so that the first eye can be visually recognized by the right eye. The first image composed of the colors of the color layer in which the first information image line is formed by binocular parallax is different, and the first image visually recognized by the left eye is stereoscopic, A stereoscopic display forming body characterized in that a first image composed of colors of a color layer different from the color layer on which the first information image line is formed is visually recognized under transmitted light. is there.

  According to the present invention, a second image that can be stereoscopically viewed is formed at a position close to or adjacent to the first image, and the second image is at least one second element region constituting the second image. The second element region is composed of an arc-shaped second information image line having a start point, a vertex, and an end point arranged in a line in the same direction as the first information image line. The second information image line is a concave shape formed by removing a part of the color layer and the transparent substrate forming the second information image, and has a light and dark flip-flop property. When the first information line to be formed and the direction of the apex are arranged in different directions, and the base material is observed while continuously changing from a predetermined angle to a different angle with respect to the light source, the first information Because the orientation of the vertex of the image line and the second information line is different, the first image and the second image visually recognized by the right eye The first image and the second image composed of the colors of the color layers in which the information lines are formed by binocular parallax because the first image and the second image visually recognized by the left eye are different in phase. 3D images are dynamically viewed in three directions and in different directions. Under transmitted light, the first information image line and the second information image line are composed of colors that are different from the color layer formed. A stereoscopic display forming body characterized in that a first image and a second image are visually recognized.

  Moreover, this invention is a three-dimensional display formation body characterized by the color difference of the color difference of a 1st color layer and a 2nd color layer being 10 or more.

  The three-dimensional display forming body according to the present invention has a three-dimensional and continuous dynamic visual effect in the observation direction by arranging image lines made of a material having a glitter property in a line shape, and transmits transmitted light. Below, a colored pattern can be seen.

  Furthermore, by arranging a plurality of image lines forming a stereoscopic image in which a color pattern appears in different directions as well as the same direction, the reflected light with respect to the incident light changes in the plurality of image lines. Therefore, when arranged in different directions, the dynamic effect of the stereoscopic image is not limited to one direction in one image, but can be visually recognized with a dynamic effect in the other direction. It can be visually recognized as an image having a special effect.

The top view (a) and sectional drawing (b) which show a three-dimensional display formation body (1). The top view which shows the image which can be viewed stereoscopically which a formation body (1) has. The schematic diagram which shows the other arrangement | positioning form of a 1st information image line (4). The top view which shows the other form which has arrange | positioned the 1st information image line (4) in the 1st direction (X1). FIG. 4 is an enlarged view of one of the first information lines (4) shown in FIG. The figure which arranged the 1st information drawing line (4) shown in FIG. The figure which shows the 1st element area | region (3E). The figure which shows the cross-sectional shape of a 1st information drawing line (4). The figure which shows the viewpoint for observing the base material (2) to which the formation body (1) was provided. The schematic diagram which shows the visual recognition principle of the 1st information image line (4) in a 2nd observation angle (E2). The top view at the time of observing the formation body (1) by which the 1st information image line (4) is arrange | positioned in the same direction from the 1st observation angle (E1). The top view at the time of observing the formation body (1) by which the 1st information image line (4) is arrange | positioned in the same direction from the 2nd observation angle (E2). The schematic diagram which shows the continuous change of the observation angle with respect to a base material (2). The top view at the time of observing the formation body (1) arrange | positioned in the direction from which a 1st information image line (4) differs from a 2nd observation angle (E2). The schematic diagram which shows the continuous change of the observation angle with respect to a base material (2). The top view which shows the other example of arrangement | positioning of a 1st information image line (4). The schematic diagram which shows the observation under the transmitted light. The top view which shows the 1st image (3) and 2nd image (5) of a modification. The schematic diagram which shows the visual recognition principle of the information image line (4) which forms the 2nd image (5) in the 2nd observation angle (E2). The top view at the time of observing a 2nd image (5) from the 2nd observation angle (E2). The schematic diagram which shows the continuous change of the observation angle with respect to a base material (2). The top view which shows the other shape of a 1st image (3) and a 2nd image (5). The schematic diagram which shows the observation under the transmitted light. The schematic diagram which shows the three-dimensional model (K1) of a 1st image (3). The schematic diagram which shows the three-dimensional model (K2) which cut | disconnected the three-dimensional model (K1) by the parallel line. The projection figure which shows the projection model (K3) of a three-dimensional model (K2) of a ring slice. The schematic diagram which shows observation of an Example. The schematic diagram which shows the observation under the transmitted light of an Example.

(First embodiment)
FIG. 1A is a plan view showing a stereoscopically visible image of the stereoscopic display formed body (1) (hereinafter referred to as “formed body”) in the present invention. The formed body (1) has a first image (3). When the first image (3) is observed from a predetermined angle with respect to the base material (2), an image having a color is viewed three-dimensionally, and an image that is visible as a colored pattern in transmitted light It is. The first image (3) is formed by arranging a plurality of concave first information lines (4) having a brilliant line shape. FIG.1 (b) is AA 'sectional drawing of a formation (1). The substrate (2) for forming the first image (3) is formed on the first color layer (2b) formed on one surface of the transparent substrate (2a) as an intermediate layer and on the other surface. And a second color layer (2c). Further, the concave depth of the first information image line (4) is a depth greater than each color layer (2b, 2c). Two or more first information image lines (4) may be formed in one color layer, or may be formed in positions that do not overlap each color layer.

  The transparent substrate (2a) forming the substrate (2) is formed of a material having glitter. The glitter in the present invention refers to a light / dark flip-flop, and a change in brightness occurs due to a change in observation angle. The transparent substrate (2a) includes a film, plastic, etc., which are transparent resin materials having light and dark flip-flop properties, but is not particularly limited as long as it has light and dark flip-flop properties. Since the first information image line (4), which will be described later, is formed by deforming the transparent substrate (2a) into a concave shape, the first information image line (4) is bright if it has bright and dark flip-flop properties. It will have sex.

  In the present invention, a stereoscopically and dynamically viewed image is composed of a part that regularly reflects incident light on the first information image line (4). Since the contrast between the specularly reflected incident light and the diffusely reflected incident light is large, a three-dimensional and color image can be dynamically visually recognized with the naked eye. In addition, a colored pattern due to the color difference of the color layer can be visually recognized under transmitted light. Therefore, it is necessary for the first information image line (4) to use a material having a predetermined amount of reflected light with respect to the light source and having light and dark flip-flop properties that transmits light.

  The thickness of the transparent substrate (2a) is appropriately set within the range of 100 μm or more and 1 mm or less depending on the depth of the first information image line (4) described later. The first information image line (4) will be described later. If it is less than 100 μm, the processability of the concave image line is difficult, and if it is 1 mm or more, it is not convenient when used as cards.

The first color layer (2b) and the second color layer (2c) are formed of a colored film having a light transmittance of 5 to 90%, a resin material such as plastic, ink, and the like. By forming the first color layer (2b) and the second color layer (2c) with different hues,
Under the transmitted light, the first image (3) due to the color difference caused by the color difference between the first color layer (2b) and the second color layer (2c) can be viewed. Further, the color difference between the first color layer (2b) and the second color layer (2c) may be 10 or more. This is because if the color difference is 10 or more, it can be visually recognized by human eyes. The thickness of the color layers (2b, 2c) is 20 μm or more and 200 μm or less. When the thickness exceeds 200 μm, processing described later is difficult, and when the thickness is less than 20 μm, the density of the color layer is lowered and the visibility is deteriorated.

Next, the first information image line (4) that forms the first image (3) will be described. FIG. 2A is a plan view showing details of the first image (3). The first image (3) consists of at least one first element region (3E). The first element region (3E) is a part that constitutes the first image (3), and the first element region (3E) is a letter “N” that is the first image (3). Form a shape. For example, the first image (3) is an image indicated by a character shape “N”, and includes five first element regions (3E ¹ , 3E ² , 3E ³ , 3E ⁴ , 3E ⁵ ) indicated by bold lines. For the sake of clarity, a line indicating the first element region (3E) is illustrated, but is a virtual line and is not formed in the actual first image (3). Details of the method of dividing the first element region (3E) for the first image (3) will be described later.

FIG. 2B is an enlarged view of one element region (3E ² ) shown in FIG. The first element region (3E ² ) is composed of arc-shaped first information lines (4) arranged in a line. A plurality of first information lines (4) are formed at the first pitch (P1).

In the first information image line (4) arranged in the first element region (3E ² ), when a straight line connecting the start point (U) and the end point (D) is the reference line (H1), the reference line ( H1) are arranged in a line in the same direction. At that time, the reference line (H1) is parallel in the plurality of first information image lines (4). By setting the reference line (H1) in the same direction, the first information image line (4) is arranged in the linear first direction (X1) in the first element region (3E ² ). .

In FIG. 2, the reference line (H1) of the first information image line (4) has been described as the same direction, but it is also possible to have different directions. FIG. 3 is a schematic diagram showing another arrangement form of the first information image line (4). In the first element region (3E ² ) shown in FIG. 3, the reference lines (H1a, H1b, H1c, H1d, H1e) of the first information image line (4) are arranged in different lines in different directions. . For example, when the reference line (H1a) is 0 degree, the reference line (H1b) is 5 degrees, the reference line (H1c) is 10 degrees, and the reference line (H1d) is 15 degrees with respect to the reference line (H1a). The line (H1e) is 20 degrees.

  By setting the reference lines (H1a, H1b, H1c, H1d, H1e) in different directions, for example, the plurality of first information lines (4) shown in FIG. Other reference lines (H1b, H1c, H1d, H1e) are gradually inclined with respect to the reference line (H1a).

  The first image (3) that can be viewed stereoscopically according to the present invention will be described later in detail when explaining the visual recognition principle, but can be dynamically viewed by changing the observation angle with respect to the base material (2). Is possible.

  When the reference line (H1) of the first information image line (4) shown in FIG. 2 is arranged in a line in the same direction and in the case where the reference line (H1) is arranged in a different direction as shown in FIG. Then, when the observation angle with respect to the base material (2) is changed, the way the image moves is different. For example, as shown in FIG. 2, the first image (3) in which the reference lines (H1) are arranged in the same direction in the same line is dynamically visually recognized in the left-right direction, and as shown in FIG. The first image (3) in which the lines (H1) are arranged in different directions in different directions is dynamically visually recognized in an oblique direction.

  In FIG. 3, the reference lines (H1a, H1b, H1c, H1d, H1e) of the first information image line (4) are gradually inclined within a range of 0 to 20 degrees. The range is not limited to the above range.

  Although the detailed visual principle will be described later, the stereoscopically viewable first image (3) of the present invention has glitter in the first information line (4) with respect to the light source at a fixed position. The visually recognizable portion moves on the first information line (4) due to the change in the observation angle, so that it can be visually recognized dynamically.

  The angle (θ1) formed by the tangent line (H2) of the first information image line (4) with respect to the reference line (H1) at the start point (U) and the first information image line with respect to the reference line (H1) at the end point (D). When the angle (θ2) formed by the tangent line (H3) of (4) is large (close to 90 degrees), it has the glitter on the first information line (4) with respect to the light source at a fixed position with the naked eye. The range that can be visually recognized increases. Therefore, the above-described tilt angle range also increases with the range that is visually recognized with glitter.

  On the contrary, the angle (θ1) formed by the tangent line (H2) of the first information image line (4) with respect to the reference line (H1) at the start point (U) and the first point with respect to the reference line (H1) at the end point (D). When the angle (θ2) formed by the tangent line (H3) of one information image line (4) is small (close to 0 degree), the range visually recognized by the naked eye with respect to the light source at a fixed position is small. Become. Therefore, the range of the angle of inclination described above also decreases with the range visually recognized with glitter.

  The angle (θ1) formed by the tangent line (H2) of the first information image line (4) with respect to the reference line (H1) at the start point (U) and the first information image line with respect to the reference line (H1) at the end point (D). When the angle (θ2) formed by the tangent line (H3) of (4) is large (close to 90 degrees), it has the glitter on the first information line (4) with respect to the light source at a fixed position with the naked eye. The range that can be visually recognized increases. Therefore, the above-described tilt angle range also increases with the range that is visually recognized with glitter.

  As described above, the range of angles for tilting the reference lines (H1a, H1b, H1c, H1d, H1e) of the plurality of first information image lines (4) is such that the first image (3) can be stereoscopically viewed. It can be appropriately set within a range of 2 to 90 degrees.

  Hereinafter, in the present embodiment, a case where the reference line (H1) of the first information image line (4) is arranged in the first direction (X1) which is the same direction shown in FIG. 2 will be described.

  Next, the first pitch (P1) for arranging the first information image line (4) will be described. The first pitch (P1) can be appropriately set within a range of 5 to 1000 μm in consideration of the formation method of the first information image line (4), the base material (2) to be used, and the image line width. is there.

  When the first pitch (P1) is less than 5 μm, it is difficult to form the first information image line (4) on the substrate (2), which is not preferable.

  On the contrary, when the first pitch (P1) exceeds 1000 μm, a region having no glitter between the adjacent first information image lines (4) can be visually recognized. Thereby, there is an area having no glitter in the first image (3), and the visibility when the first image (3) is viewed three-dimensionally is not preferable.

  In FIG. 2, the first pitch (P1) is shown as the first pitch (P1), which is the same regular pitch, but may be a random pitch.

  FIG. 4 is a plan view showing another embodiment in which the first information image line (4) is arranged in the first direction (X1). The first information line (4) is arranged at a random pitch (PL) in the first direction (X1). In the case of arranging at a random pitch (PL), each of the pitches can be appropriately set within a range of 5 to 1000 μm, similarly to the range of the first pitch (P1) described above. is there. In addition, also when arrange | positioning with random pitch (PL), a 1st information image line (4) is arrange | positioned in a 1st element area | region (3E).

  The reason why the pitch (PL) is in the range of 5 to 1000 μm is the same as that of the first pitch (P1) described above, and thus the description thereof is omitted. In consideration of the visibility of the stereoscopically viewed image, it is preferable that the first image (3) including the plurality of first information image lines (4) is visually recognized with uniform brightness. . By being visually recognized with uniform brightness, it is easy to visually recognize as a stereoscopic image. Therefore, the pitch of the first information image line (4) is preferably formed at a regular first pitch (P1).

  The line width of the first information line (4) is appropriately set within a range of 5 to 1000 μm in consideration of the first pitch (P1).

  When the image line width is less than 5 μm, it is difficult to form the first information image line (4) on the substrate (2), which is not preferable.

  On the contrary, when the image line width is 1000 μm or more, it is necessary to increase the shape of the first image (3) corresponding to the image line width. When the first image (3) is enlarged, it is difficult to stereoscopically view the first image (3) due to binocular parallax.

  FIG. 5A is an enlarged view of one of the first information lines (4) shown in FIG. As described above, the first information image line (4) is an arc-shaped image line having a start point (U), a vertex (T), and an end point (D).

  Although the details of the stereoscopically viewable image of the present invention will be described later in detail, it can be dynamically visually recognized by changing the observation angle with respect to the base material (2). The reason for dynamically recognizing is that the illumination angle of the first information image line (4) having glitter is reflected by changing the observation angle with respect to the base material (2). This is because of changes. By making the first information image line (4) into an arc shape, the portion of the first information image line (4) that reflects the illumination light continuously changes on the image line. Therefore, when the first image (3) is dynamically viewed, the first image (3) seems to move continuously by making the first information line (4) arc-shaped. Visible to.

  In the first information image line (4) arranged in the first element region (3E), when the straight line connecting the start point (U) and the end point (D) is the reference line (H1), the start point (U) , The angle (θ1) formed by the tangent line (H2) of the arc-shaped first information image line (4) with respect to the reference line (H1) can be appropriately set within a range of 2 to 90 degrees. .

  Although details will be described later, in the first image (3), the binocular parallax is possible for the incident light from the light source between the start point (U) and the end point (D) of the first information image line (4). In such a range, it is visually recognized as a stereoscopic image by reflecting in different directions. When the angle (θ1) formed by the tangent line (H2) of the arc-shaped first information image line (4) with respect to the reference line (H1) at the start point (U) is less than 2 degrees, the reflected light from the light source However, since it reflects in substantially the same direction, binocular parallax becomes impossible at an appropriate observation distance, which is not preferable.

  Conversely, when the angle (θ1) formed by the tangent line (H2) of the arc-shaped first information image line (4) with respect to the reference line (H1) at the start point (U) exceeds 90 degrees, the start point (U ) Side and the end point (D) side, incident light is reflected in different directions, but this is not preferable because it falls outside the binocular parallax range.

  Further, at the end point (D), the angle (θ2) formed by the tangent line (H3) of the arc-shaped first information image line (4) with respect to the reference line (H1) is the same as the above-mentioned start point (U) side. For the reason, it can be appropriately set within a range of 2 to 90 degrees.

  The first information image line (4) arranged in the first element region (3E) is the first information image line (4) with respect to the reference line (H1) and the reference line (H1) at the start point (U). The angle (θ1) formed by the tangent line (H2) is preferably the same in all the first information image lines (4). Further, at the end point (D), all the first information images are also obtained at the angle (θ2) formed by the reference line (H1) and the tangent line (H3) of the first information image line (4) with respect to the reference line (H1). In line (4), it is preferable to make it the same angle.

  As described above, the first information line (4) is arranged in the first element region (3E). When the first image (3) is stereoscopically viewed with binocular parallax, if the angle (θ1) on the start point (U) side and the angle (θ2) on the end point (D) side are the same angle, The direction of the reflected light from the information image line (4) is the same in all the first information image lines (4). Therefore, the first image (3) can be clearly visually recognized with the naked eye. On the other hand, when the angle (θ1) on the start point (U) side and the angle (θ2) on the end point (D) side are different, the direction of reflected light from the first information image line (4) varies. . Thereby, the first image (3) is visually recognized as a blurred image, which is not preferable.

  Moreover, as a preferable arrangement of the other first information image line (4), as shown in FIG. 6A, in the first element region (3E), in the first element region (3E). The vertex (T) of the first information line is arranged on a virtual line (J) that connects the centers of the reference lines (H1) of the plurality of first information lines (4) that are arranged, Alternatively, as shown in FIG. 6B, the vertex (T) of the first information image line (4) is on the left or right side of the start point (U) side and the end point (D) side with respect to the virtual line (J). It is preferable that they are arranged.

  With the configuration shown in FIG. 6A, when stereoscopically viewing the first image (3) with binocular parallax, the angle (θ1) on the start point (U) side and the angle on the end point (D) side When (θ2) is the same angle, the direction of the reflected light from the first information image line (4) is the same in all the first information image lines (4), and is clearly the first for the naked eye. It is possible to visually recognize the image (3).

  6B, the angle (θ1) on the start point (U) side and the angle (θ2) on the end point (D) side are different from each other, but the angle on the start point (U) side is different. There is a magnitude relationship between the angle (θ1) and the angle on the end point (D) side on both the left and right sides of the virtual line (J). For example, in FIG. 6B, all the vertices (T) are arranged on the left side with respect to the virtual line (J). Thereby, the angle (θ1) on the start point (U) side of the first information image line (4) arranged in the first element region (3E) is larger than the angle (θ2) on the end point (D) side. Become. As a result, the first image (3) cannot be clearly seen without much variation in the direction of reflected light from the first information image line (4).

  Hereinafter, in the present embodiment, the angle (θ1) formed by the tangent line (H2) of the first information image line (4) with respect to the reference line (H1) at the start point (U) and the reference line at the end point (D) ( The angle (θ2) formed by the tangent line (H3) of the first information line (4) with respect to H1) is plural for each of the first information lines (4) arranged on the substrate (2). This will be described as the same angle.

  The length of the reference line (H1) is appropriately set according to the size of the first image (3) and the distance between the first image (3) and the observer, but is within the range of 0.5 to 65 mm. Is preferable. The first image (3) of the present invention is an image that can be stereoscopically viewed using binocular parallax. It must be kept below 65 mm, which is the distance between both eyes of a general human being. In addition, in order to create an appropriate sense of perspective that everyone feels like this, it is necessary to form it at a predetermined distance of 0.5 mm or more. Therefore, by setting the length of the reference line (H1) within the above-described range, the first image (3) can be easily viewed by binocular parallax.

  When the formed body (1) is used for a security product or the like, the smaller one is more difficult to tamper with and the forgery prevention effect is improved. Therefore, the shorter reference line (H1) is preferable.

  In addition, when the formed body (1) is used for the purpose of improving the designability in posters, advertisements, etc., since the formed body (1) is large, with the change in the size of the formed body (1), The length of the reference line (H1) becomes longer. Therefore, the length of the reference line (H1) is appropriately set according to the distance between the poster and the formed body (1) and the observer, not limited to the above range.

  As described above, according to the size and use of the formed body (1) and the distance between the observer and the formed body (1), the first image (3) can be appropriately selected so as to be visible as a stereoscopic image. Set the length of the line (H1).

  In FIG. 6A, the first information image line (4) is illustrated as a bilaterally symmetric shape with the vertex (T) as the center, but it can also be bilaterally asymmetric.

  FIG. 6B is an enlarged view showing another shape of the first information image line (4). The first information line (4) has an asymmetric shape with the vertex (T) as the center. In the case of a left-right asymmetric shape, the angle (θ1) formed by the tangent line (H2) of the first information image line (4) to the reference line (H1) at the start point (U) and the reference line at the end point (D) The angle (θ2) formed by the tangent line (H3) of the first information image line (4) with respect to (H1) can be set as appropriate within a range of 2 to 90 degrees, similarly to the angle range described above. It is. Hereinafter, in the present embodiment, the first information image line (4) will be described as the shape shown in FIG.

  The first image (3) is not limited to the character shape described above, and is not particularly limited as long as a plurality of first information image lines (4) can be arranged. FIG. 7 is a plan view showing another shape of the first image (3). The first image (3) may have a circular shape shown in FIG. 7A, a character shape “A” shown in FIG. 7B, or a face shape shown in FIG. 7C. It is. In FIG. 7A, FIG. 7B and FIG. 7C, the first element region (3E) refers to each of the parts constituting the first image (3), as shown by the bold line. It forms suitably so that a 1st image (3) can be viewed stereoscopically.

  Preferably, a virtual line (J) connecting the centers of the reference lines (H1) of the plurality of first information lines (4) forming the first image (3) is one first element. The first image (3) is divided into first element regions (3E) so as to become one in the region (3E).

  For example, in FIG. 7A, there is one virtual line (J) connecting the centers of the reference lines (H1) of the plurality of first information lines (4) forming the first image (3). is there. Therefore, the first image (3) is composed of one first element region (3E).

In FIG. 7B, when a plurality of first information lines (4) forming the first image (3) are arranged from the lower side of the first element region (3E ¹ ), The location where the arrangement of one information line (4) is broken occurs. By dividing the location where the arrangement is broken as shown in the first element region (3E ² ), a virtual line (J) connecting the centers of the reference lines (H1) is formed in each element region (3E). The first image (3) is a stereoscopically viewable image.

  In the plurality of first element regions (3E), the first information lines (4) can be arranged in different directions for each region.

For example, the first image (3) shown in FIG. 7C is a first information image in each element region (3E) of the eyes, nose and mouth which are the first element regions (3E). reference line of the line (H1), which both are arranged in a first direction straight, eyes arranged at X1 ¹ direction (X1 ^1), nose and X1 ² direction (X1 ²⁾ And the mouth is arranged in the X1 ³ direction (X1 ³ ), and the X1 ¹ direction (X1 ¹ ), the X1 ² direction (X1 ² ), and the X1 ³ direction (X1 ³ ) are different from each other. Is also possible.

  Also. As described with reference to FIG. 3, in the formed body (S) of the present invention, the reference line (H1) of the first information image line (4) is in a different direction within one first element region (3E). It is also possible to do.

For example, in the first image (3) shown in FIG. 7 (c), in the eyes (3E ¹ ), nose (3E ² ) and mouth (3E ³ ) which are the first element regions (3E), the eyes The reference line (H1) of one information line (4) is arranged in the different direction described above in FIG. 3, and the nose (3E ² ) and the mouth (3E ³ ) have the reference line (H1) described in FIG. It is also possible to arrange them in the same direction.

  The element region (3E) in which the reference lines (H1) are arranged in the same direction and the element region (3E) in which the reference line (H1) is arranged in different directions are dynamically visually recognized in different directions due to a change in observation angle. Thus, in FIG. 7C, the nose and mouth are dynamically viewed in the same direction, but the eyes are dynamically viewed in a direction different from the nose and mouth, and the first image (3) is More complex and dynamic.

  Next, the relationship between the depth of the first information image line (4) and the transparent substrate (2a) forming the first information image line (4) will be described. The first information image line (4) is a bright and dark flip-flop that completely removes the image line having the glitter described in paragraph (0019), that is, the color layers (2b, 2c) and transmits light. It is an image line formed by removing a part of the transparent substrate (2a), which is a material having a property, and processing it into a concave shape.

  The method of forming the transparent substrate (2a) by deforming it into a concave shape means that the transparent substrate (2a) is formed using a known processing machine capable of deforming the substrate (2) such as laser processing or cutting. It is formed by processing according to the shape of the first information image line (4). For example, laser processing and cutting are performed on a base material (2) having a three-layer structure including a first color layer (2b), a transparent substrate (2a), and a second color layer (2c) shown in FIG. By completely removing the color layers (2b, 2c) by processing, and removing a part of the transparent substrate (2a), which is a material having light and dark flip-flops that transmits light, and processing into a concave shape When the first information line (4) is formed, as shown in FIG. 8B, the shape of the first information line (4a) formed by laser processing depends on the heat distribution of the laser. The cross-sectional shape of the first information lines (4b, 4c) formed by cutting with a numerically controlled processing machine (NC processing machine) having a sharp blade is the shape of the blade. Note that the shape of the first information image line (4a) preferably has a smooth curved surface. When the cross-sectional shape takes the shape described above, the bright spot moves smoothly along the curved surface.

  Next, the observation angle for visually recognizing the first image (3) described above will be described. FIG. 9 is a diagram showing viewpoints (E1, E2) for observing the base material (2) to which the formed body (1) is applied. In addition, the 1st information image line (4) is arrange | positioned in the 1st direction (X1) on a base material (2).

  In the present invention, when the base material (2), the light source (Q) at a fixed position, and the viewpoint are in the positional relationship shown in FIG. 9 (a), it is observed from the first observation angle (E1). Assume that the observation is performed from the second observation angle (E2) when the positional relationship shown in b) is satisfied.

  The first observation angle (E1) is a region in which the first information image line (4) is not visually recognized with brilliancy with respect to incident light from the light source (Q) at a fixed position. For example, when the first information image line (4) is formed of a transparent resin such as plastic, incident light from the light source (Q) is not reflected in the diffuse reflection region. Therefore, the first information image line (4) is reflected light having a light amount less than a predetermined amount of reflected light, and is visually recognized as an image line having no glitter with the naked eye.

  The second observation angle (E2) is a region where the first information image line (4) is visually recognized with a brilliancy with respect to the incident light from the light source (Q) at a fixed position. . For example, when the first information image line (4) is formed of a transparent plastic resin, incident light from the light source (Q) is reflected in the regular reflection region. Therefore, the first information image line (4) has reflected light that is greater than or equal to a predetermined amount of reflected light, and is visually recognized as an image line that has a glittering property with the naked eye.

  Note that the first observation angle (E1) and the second observation angle (E2) are the positions of the base material (2), the light source (Q), and the starting point depending on the material forming the first information image line (4). The relationship changes and is not limited to the regular reflection region and the diffuse reflection region. As described above, the first observation angle (E1) in the present invention means that the first information image line (4) is visually recognized with the radiance to the incident light from the light source (Q) at a fixed position. The second observation angle (E2) is a region where the first information image line (4) is visually recognized with respect to incident light from the light source (Q) at a fixed position. It is an area to be done.

  FIG. 10 is a schematic diagram showing the visual recognition principle of the first information image line (4) at the second observation angle (E2). As shown in FIG. 10A, at the second observation angle (E2), the glittering material forming the first information image line (4) reflects the incident light from the light source (Q). To do.

  As described above, the first information line (4) of the present invention is a concave or convex arcuate line with respect to the substrate (2). Therefore, the reflected light (V1, V2, V3, V4, V5) from the light source (Q) is reflected not in one direction but in the other direction.

  Since the viewing angle of the left eye (L) of the observer is θL, the reflected light (V1, V2) within the viewing angle θL is visually recognized by the left eye (L). On the other hand, the reflected light (V3, V4, V5) is not visually recognized because it is outside the range of the viewing angle θL. Therefore, as shown in FIG. 10B, the first information image line (4) is a bright line on the left eye (L) of the observer, as shown in FIG. 10 (b). However, the solid line portion on the end point (D) side outside the viewing angle θL is visually recognized as an image line having no glitter.

  On the other hand, since the viewing angle of the right eye (R) of the observer is θR, reflected light (V4, V5) within the viewing angle θR is visually recognized by the right eye (R). On the other hand, the reflected light (V1, V2, V3) is not visually recognized because it is outside the range of the viewing angle θR. Therefore, as shown in FIG. 10C, the first information image line (4) has a glitter on the right side (R) of the observer, as shown in FIG. 10C. However, the solid line portion on the start point (U) side outside the viewing angle θR is visually recognized as an image line having no glitter.

  A portion visually recognized by the first information image line (4) visually recognized by the left eye (L) shown in FIG. 10B and visually recognized by the right eye (R) shown in FIG. The portion that is visually recognized with the glitter of the first information image line (4) is visually recognized as an image line having a phase difference on the left and right with respect to the line (G) connecting the left and right viewpoints. . Therefore, even if the same image is not formed in a row, the first information image line (4) is visually recognized as a three-dimensional image line by the binocular parallax as shown in FIG. The

  When the formed body (1) is composed of the first information image line (4) with the reference line (H1) shown in FIG. 2 in the same direction, the left and right viewpoints shown in FIG. 10 (a) are connected. By observing the line (G) and the reference line (H1) to be substantially parallel, the first information image line (4) and a first image (3) to be described later can be viewed in three dimensions. It becomes possible.

  In the case where the formed body (1) is composed of the first information image line (4) having the reference line (H1) shown in FIG. 3 in a different direction, for example, the reference line (H1a) shown in FIG. If the reference line (H1b) is 0 degree, the reference line (H1c) is 10 degrees, the reference line (H1d) is 15 degrees, and the reference line (H1e) is 20 degrees, the observer's right eye (R ) And a left-eye viewing angle θL within the range of the viewing angle θR and the minimum angle of the reference line arranged in different directions (in FIG. 4, 0 degree of the reference line (H1a) is the minimum angle) and the maximum angle (FIG. 3, the distance between the formed body (1) and the eyes of the observer is adjusted as appropriate so that the reference line (H1e) can be visually recognized at the maximum angle of 20 degrees.

  Next, the visual recognition principle when the formed body (1) is observed from each observation angle (E1, E2) will be described.

  FIG. 11 is a plan view when the formation body (1) in which the reference lines in the first information image line (4) are arranged in a line in the same direction is observed from the first observation angle (E1). It is. When observed from the first observation angle (E1) with respect to the substrate (2), the first information image line (4) is visually recognized as an image line having no glitter. Therefore, the first image (3) including the plurality of first information lines (4) is visually recognized as a planar image.

  FIG. 12 is a plan view when the formed body (1) shown in FIG. 11 is observed from the second observation angle (E2). When observed from the second observation angle (E2) with respect to the substrate (2), the first information image line (4) is visually recognized as an image line having glitter.

  FIG. 12A1 is a plan view showing a first L image (3L) visually recognized by the left eye (L) of the observer, and FIG. 12A2 is an enlarged view of a part of FIG. 12A1. FIG. As shown in FIG. 12 (a2), at the second observation angle (E2), the left eye (L) of the observer visually recognizes the dotted line portion in the first information image line (4) with glitter. The solid line portion is visually recognized as an image line having no glitter. Therefore, in the left eye (L) of the observer, the first L image composed of the portions of the plurality of first information image lines (4) shown in FIG. (3L) is visually recognized.

  FIG. 12 (b1) is a plan view showing a first R image (3R) visually recognized by the observer's right eye (R), and FIG. 12 (b2) is an enlarged view of part of FIG. 12 (b1). FIG. As shown in FIG. 12 (b2), at the second observation angle (E2), the dotted line portion in the first information image line (4) is visually recognized by the viewer's right eye (R) with glitter. The solid line portion is visually recognized as an image line having no glitter. Therefore, in the right eye (R) of the observer, the first R image made up of the portions that are visually recognized with brilliancy in the plurality of first information image lines (4) shown in FIG. 12 (b2). (3R) is visually recognized.

  FIG. 12 (c1) is a plan view showing the first image (3) visually recognized by both eyes (L, R) of the observer, and FIG. 12 (c2) is a part of FIG. 12 (c1). FIG. As described above, the first L image (3L) shown in FIG. 12A1 is visually recognized in the left eye (L) of the observer at the second observation angle (E2), and the right eye (R) The first R image (3R) shown in FIG.

  As described above, the first information line (4) visually recognized by the left eye (L) and the first information line (4) visually recognized by the right eye connect the start point (U) and the end point (D). Since the image is visually recognized as an image line having a phase difference with respect to the reference line (H1) that is a straight line, the reference line (3R) and the first L image (3L) are also referred to as the reference line ( It is visually recognized by the observer's eyes (L, R) as an image having a phase difference with respect to H1). Therefore, the phase of the first image (3) visually recognized by the right eye and the first image (3) visually recognized by the left eye is different from each other by the binocular parallax. One image (3) is visually recognized as a stereoscopic image.

  Furthermore, by changing the observation angle, it is possible to visually recognize the first image (3) composed of the colors of the color layer as the observation angle changes. Next, the principle by which the first image (3) is visually recognized will be described.

  FIG. 13A is a schematic diagram showing a change in the observation angle with respect to the base material 2 in the formed body 1 shown in FIG. 11, and FIGS. 13B1 and 13B2 are shown in FIG. It is the top view and enlarged view which show the 1st image (3) visually recognized in (a).

As shown in FIG. 13A, in the region (θ4) where the first information image line (4) is visually recognized as an image line having glitter, the observation angle relative to the substrate (2) is set to the second ¹ viewing angle (E2 ¹⁾ from when observed by continuously changing into the second ^second observation angle (E2 ^2), with a change in viewing angle, the light source of the first information image line (4) (Q The position where the incident light from) is reflected gradually changes from the start point side to the end point side. As a result, the portion having the glitter of the first information image line (4) shown by the dotted line in FIG. 13 (b2) is also visually recognized as moving continuously in the direction of the arrow shown in FIG. 13 (b2). The

For example, the left observation angle when viewed in a second ^one continuously changed and observed from an angle (E2 ¹⁾ to the second ^second observation angle (E2 ^2), the first image (3), from the right It is visually recognized as moving into, on the contrary, when observing it from the second ^second observation angle (E2 ²⁾ is continuously changed to a second ^first viewing angle (E2 ^1), first image (3) is visually recognized as moving from left to right. Note that the maximum width (amount of movement) that moves to the left and right of the first image (3) is the same as the amount of change in the portion having the glitter of the first information image line (4), so the reference line (H1 ) Moves left and right within the same range as the length.

  Thus, the first image (3) of the present invention can be viewed as if it is moving three-dimensionally and continuously.

  Next, the visual recognition principle of the formed body (1) in which the reference lines in the first information image line (4) are arranged in different lines in different directions as shown in FIG. 3 will be described. When the formed bodies (1) arranged in different directions in different directions are observed from the first observation angle (E1), the first information image line (4) is visually recognized as an image line having no glitter. Is done. Therefore, the first image (3) composed of a plurality of first information lines (4) is similar to the formed body (1) in which the reference lines described above in FIG. It is visually recognized as a planar image.

  FIG. 14 is a plan view when the formed body (1) in which the reference lines in the first information image line (4) are arranged in different directions in different directions is observed from the second observation angle (E2). It is. When observed from the second observation angle (E2) with respect to the substrate (2), the first information image line (4) is visually recognized as an image line having glitter.

  FIG. 14 (a1) is a plan view showing a first L image (3L) visually recognized by the left eye (L) of the observer, and FIG. 14 (a2) is an enlarged view of a part of FIG. 14 (a1). FIG. As shown in FIG. 14 (a2), at the second observation angle (E2), the left eye (L) of the observer visually recognizes the dotted line portion in the first information image line (4) with glitter. The solid line portion is visually recognized as an image line having no glitter.

  In the case where the first information image line (4) is arranged with the reference line described above in FIG. 12 as the same direction, there are a plurality of portions visually recognized with glitter in the first information image line (4). In the first information image line (4), when the reference line is arranged in a different direction, as shown in FIG. In the information line (4), the position gradually changes.

  For example, in FIG. 14, the part visually recognized with the glitter indicated by the dotted line gradually changes in the right direction (X2) in the figure. Therefore, in the left eye (L) of the observer, the first L of the first information image lines (4) shown in FIG. An image (3L) is visually recognized. As described above, since the location that is visually recognized with the glitter changes, the first L image (3L) is visually recognized as an image obtained by obliquely deforming the first image (3).

  FIG. 14 (b1) is a plan view showing the first R image (3R) visually recognized by the observer's right eye (R), and FIG. 14 (b2) is an enlarged view of part of FIG. 14 (b1). FIG. As shown in FIG. 14 (b2), at the second observation angle (E2), the dotted line portion of the first information image line (4) is visually recognized by the viewer's right eye (R) with glitter. The solid line portion is visually recognized as an image line having no glitter.

  Similar to the left eye (L) viewing state described above, when the reference line is arranged in a different direction, as shown in FIG. In (4), the position gradually changes.

  Therefore, in the right eye (R) of the observer, the first R image made up of the portions of the plurality of first information image lines (4) shown in FIG. (3R) is visually recognized. As described above, since the location that is visually recognized with the glitter changes, the first L image (3L) is visually recognized as an image obtained by obliquely deforming the first image (3).

  FIG. 14 (c1) is a plan view showing the first image (3) visually recognized by both eyes (L, R) of the observer, and FIG. 14 (c2) is a part of FIG. 14 (c1). FIG. As described above, the first L image (3L) shown in FIG. 14 (a1) is visually recognized in the left eye (L) of the observer at the second observation angle (E2), and the right eye (R) The first R image (3R) shown in FIG.

  As described above, the first information line (4) visually recognized by the left eye (L) and the first information line (4) visually recognized by the right eye are relative to the line (G) connecting the left and right viewpoints. Therefore, the first R image (3R) and the first L image (3L) have a phase difference with respect to the reference line (H1). The image is visually recognized by both eyes (L, R) of the observer. Therefore, the phase of the first image (3) visually recognized by the right eye and the first image (3) visually recognized by the left eye is different from that of the color layer that is obliquely deformed by the binocular parallax. The first image (3) composed of colors is visually recognized as a stereoscopic image.

  Furthermore, by changing the observation angle, the first image (3) can be visually recognized dynamically as the observation angle changes. Next, the principle by which the first image (3) is visually recognized will be described.

  Fig.15 (a) is a schematic diagram which shows the change of the observation angle with respect to a base material (2) in the formation body (1) shown in FIG. 14, FIG.15 (b1) and FIG.15 (b2) are FIG. It is the top view and enlarged view which show the 1st image (3) visually recognized in (a).

As described above, in the first image (3) composed of the first information lines (4) arranged in a plurality of different directions, the image is viewed stereoscopically as an obliquely deformed image. Therefore, as shown in FIG. 15A, in the region (θ4) where the first information image line (4) is visually recognized as a bright image line, the observation angle with respect to the base material (2) is set to two ^first viewing angle (E2 ¹⁾ from when observed by continuously changing into the second ^second observation angle (E2 ^2), with a change in viewing angle, the light source of the first information image line (4) The position where the incident light from (Q) is reflected gradually changes from the start point side to the end point side. Accordingly, the portion having the glitter of the first information image line (4) indicated by the dotted line in FIG. 15 (b2) also continuously moves in the oblique direction that is the arrow direction shown in FIG. 15 (b2). As seen.

For example, when observed by continuously changing the observation angle from the second ^first viewing angle (E2 ¹⁾ to the second ^second observation angle (E2 ^2), the first image (3) is on the right diagonal If the visually recognized as moving to the left obliquely downward, the opposite was observed continuously changed from the second ^second observation angle (E2 ²⁾ to the second ^first viewing angle (E2 ^1), The first image (3) is visually recognized as moving from the lower left diagonal to the upper right diagonal. Note that the maximum width (movement amount) of the first image (3) that moves in the left-right diagonal direction is the same as the change amount of the portion having the glitter of the first information image line (4). It moves left and right within the same range as the length of (H1).

  As described above, the stereoscopically viewable first image (3) is observed when the plurality of first information lines (4) constituting the reference line (H1) have the same direction as shown in FIG. When the reference line (H1) is set in a different direction as shown in FIG. 3, it is visually recognized in an oblique direction due to a change in the observation angle.

  Note that the image line shape when arranged in different directions is not limited to the arrangement in which the first information image line (4) having an arc shape is gradually inclined to the left as shown in FIG. If one image (3) is dynamically visible in an oblique direction, it may be configured to gradually tilt to the right and then gradually to the left as shown by an arrow in FIG. Is possible.

  Under transmitted light, as shown in FIG. 17, the first color layer (2b) and the second color layer (2c) are at the observation point (E3) where the first color layer (2a) is not concave. Since the mixed color is observed and the color of the second color layer (2c) is observed at the observation point (E4) where the first color layer (2a) is concave, the first image (3 ) Is visually recognized in the color of the second color layer (2c).

(Second embodiment)
Next, a modified example of the above-described formed body (1) will be described. FIG. 18 is a plan view showing a modified forming body (1) arranged in the region (Z). The description of the same points as those of the above-described embodiment will be omitted below. The formed body (1) has a stereoscopically visible image as in the above-described embodiment. The stereoscopically viewable image in the modification is an image having a higher dynamic effect than the above-described embodiment.

  As shown in FIG. 18, the formed body (1) has a first image (3) and a second image (5). Since the first image (3) is the same image as the above-described image, the description thereof is omitted. As shown in FIG. 17, the second image (5) is formed at a position close to or adjacent to the first image (3) arranged in the region (Z).

  The adjacent position is that the first image (3) and the second image (5) are formed adjacent to each other, and the adjacent positions are the first image (3) and the second image. The image (5) is formed at a close position on the substrate (2). It should be noted that, in the proximity or adjacent position, the color of the color layer is determined according to the visual field of the observer, the distance between the left and right eyes, and the size of the first image (3) and the second image (5). The first image (3) and the second image (5) are appropriately set within the range of the distance (W) at which stereoscopic viewing is possible.

  The second image (5) consists of at least one second element region (5E). The second element region (5E) is a part constituting the second image (5), and the second element region (5E) is arranged so that the second image region (5E) is “N” as a whole. "Is formed. For the sake of clarity, a line indicating the second element region (5E) is illustrated, but is a virtual line and is not formed in the actual second image (5).

  The method for dividing the second element region (5E) for the second image (5) is the same as the method for dividing the first element region (3E) for the first image (3) described above. Therefore, the description is omitted.

  The second image (5) has a second line-shaped information image line (6). The second information image line (6) and the first information image line (4) forming the first image (3) described above have the same shape, material to be formed, and pitch to be arranged, but the image line The direction of is different.

  The second image (5) has a second direction (X2) in which the direction of the apex (T) is different from that of the arc-shaped first information image line (4) forming the first image (3). Is arranged. The second information image line (6) may be arranged in the same direction in the second element region (5E) in the same direction as in the first element region (3E). The plurality of second element regions (5E) may be arranged in different directions. Therefore, the second direction (X2) can be the same as or different from the first direction (X1) described above.

  The direction of the vertex (T) of the first information line (4) and the second information line (6) can be different within a range of 1 to 180 degrees, but is approximately 180 degrees. Is preferred.

  When the first image (3) and the second image (5) are viewed three-dimensionally and dynamically, the dynamic effect is higher and the color layer is composed of colors of the color layer. Visible as an image. In addition, the detail about the principle visually recognized by a dynamic effect is mentioned later.

  Hereinafter, in the modified example of the present embodiment, it is assumed that the vertex directions of the first information image line (4) and the second information image line (6) are different by 180 degrees.

  FIG. 19 is a schematic diagram showing details of the visual recognition principle of the second information image line (6) forming the second image (5) at the second observation angle (E2). As shown in FIG. 19A, at the second observation angle (E2), the second information image line (6) is visually recognized with glitter.

  As described above, the second information image line (6) of the present invention is a concave arc-shaped image line with respect to the base material (2), similarly to the first information image line (4) described above. Therefore, the reflected light (V1, V2, V3, V4, V5) from the light source (Q) is reflected not in one direction but in the other direction.

  Since the viewing angle of the left eye (L) of the observer is θL, the reflected light (V4, V5) is visually recognized by the left eye (L). On the other hand, the reflected light (V1, V2, V3) is not visually recognized because it is outside the range of the viewing angle θL. Therefore, the second information image line (6) is visually recognized by the left eye (L) of the observer as shown in FIG. 19 (b1) with the dotted line portion on the end point (D) side having glitter. However, the solid line portion on the start point (U) side is visually recognized as an image line having no glitter.

  On the other hand, since the viewing angle of the observer's right eye (R) is θR, reflected light (V1, V2) is visually recognized by the right eye (R). On the other hand, the reflected light (V3, V4, V5) is not visually recognized because it is outside the range of the viewing angle θR. Therefore, the second information image line (6) is visually recognized by the observer's right eye (R) with the dotted line portion on the start point (U) side having glitter as shown in FIG. 19 (c1). However, the solid line portion on the end point (D) side is visually recognized as an image line having no glitter.

  A portion visually recognized by the second information image line (6) visually recognized by the left eye (L) shown in FIG. 19 (b1) and a first eye visually recognized by the right eye shown in FIG. 19 (c1). The portion visually recognized with the brightness of the second information image line (6) is an image having a phase difference with respect to the reference line (H1) which is a straight line connecting the start point (U) and the end point (D). Visible as a line. Accordingly, due to the binocular parallax, the second information image line (6) is visually recognized by the observer as a three-dimensional image line as shown in FIG. 19 (d1).

  19 (b2), FIG. 19 (c2) and FIG. 19 (d2) show the first information line (4) forming the first image (3) of the modification shown in FIG. It is a schematic diagram at the time of visually recognizing from an observation angle (E2). FIG. 19 (b2) is the first information line (4) visually recognized by the left eye (L) of the observer, and FIG. 19 (c2) is the first information visually recognized by the observer's right eye (R). FIG. 19D2 shows the first information image line (4) visually recognized by the left and right eyes (L, R) of the observer.

  The second information line (6) that forms the second image (5) is arranged in a direction that is approximately 180 degrees different from the first information line (4) that forms the first image (3) described above. Has been. Therefore, at the second observation angle (E2), the portions that are visually recognized with the glitter indicated by the dotted line portions of the information image lines (4, 6) visually recognized by the observer are left and right of the observer. The opposite part is visually recognized by the eyes (L, R).

  For example, FIG. 19 (b1) and FIG. 19 (b2) are information lines (4, 6) visually recognized by the left eye (L) of the observer, respectively, but in FIG. The end point (D) of the information image line (6) is visually recognized with glitter. On the other hand, in FIG. 19 (b2), the start point (U) side of the first information image line (4) is visually recognized with glitter.

  In the information image lines (4, 6) forming the first image (3) and the second image (5), the opposite parts of the left and right eyes (L, R) of the observer are brilliant. Thus, when the substrate (2) is tilted and visually recognized, the first image (3) and the second image (5) are dynamically visually recognized in different directions. The details of the principle of dynamically visually recognizing in different directions will be described later.

  FIG. 20 is a plan view when the second image (5) is observed from the second observation angle (E2) described above. FIG. 20 (a1) is a plan view showing a second L image (5L) visually recognized by the left eye (L) of the observer, and FIG. 20 (a2) is an enlarged view of a part of FIG. 20 (a1). FIG. As shown in FIG. 20 (a2), at the second observation angle (E2), the dotted line portion in the second information image line (6) is visually recognized by the left eye (L) of the viewer. The On the other hand, the solid line portion in FIG. 20 (a2) is visually recognized as an image line having no glitter. Therefore, the second L image (5L) composed of a plurality of second information image lines (6) in which the dotted line portion has glitter and the solid line portion does not have glitter is visually recognized.

  FIG. 20 (b1) is a plan view showing a second R image (5R) visually recognized by the observer's right eye (R), and FIG. 20 (b2) is an enlarged view of a part of FIG. 20 (b1). FIG. As shown in FIG. 20 (b2), at the second observation angle (E2), the dotted line portion of the second information image line (6) is visually recognized by the viewer's right eye (R) with glitter. The On the other hand, the solid line portion in FIG. 20B2 is visually recognized as an image line having no glitter. Therefore, the second R image (5R) composed of a plurality of second information image lines (6) in which the dotted line portion has glitter and the solid line portion does not have glitter is visually recognized.

  FIG. 20 (c1) is a plan view showing a second image (5) visually recognized by both eyes (L, R) of the observer, and FIG. 20 (c2) shows a part of FIG. 20 (c1). FIG. As described above, the second L image (5L) shown in FIG. 20 (a1) is visually recognized in the left eye (L) of the observer at the second observation angle (E2), and the right eye (R) A second R image (5R) shown in FIG.

  As described above, the second information image line (6) visually recognized by the left eye (L) and the second information image line (6) visually recognized by the right eye connect the start point (U) and the end point (D). It is visually recognized as an image line having a phase difference with respect to the reference line (H1) which is a straight line. Therefore, the second image (5) composed of a plurality of information lines (4) is the second R image (5R) and the second L image (5L) is positioned relative to the reference line (H1). Since it is visually recognized by both eyes (L, R) of the observer as images having a phase difference, the second image (5) visually recognized by the right eye and the second image (5) visually recognized by the left eye. Due to the different phases, the second image (5) is visually recognized as a stereoscopic image by the observer due to the binocular parallax, as shown in FIG. 20 (c1).

  FIG. 21A is a schematic diagram showing a continuous change in the observation angle with respect to the substrate (2), and FIG. 21B shows each image (3) viewed from the second observation angle (E2). 5) is a plan view. When the information lines (4, 6) shown in FIG. 21A are observed from the second observation angle (E2) in the region (θ4) where the information lines (4, 6) are visually recognized as bright lines, FIG. As shown in b), the first image (3) and the second image (5) are viewed three-dimensionally.

FIG. 21 (c) is a plan view of each image (3, 5) which is visible from the second ^first viewing angle (E2 ^1). In the region (.theta.4), a change in viewing angle for the case where the observation angle was second continuously observed by changing the observation angle from (E2) to the second ^first viewing angle (E2 ^1), the substrate (2) Accordingly, the position where the incident light from the light source (Q) in the information image line (4) is reflected gradually changes.

  As described above, the first information line (4) that forms the first image (3) and the second information line (6) that forms the second image (5) differ by approximately 180 degrees. Arranged in the direction. Thereby, the part visually recognized with the brightness of each information image line (4, 6) at the second observation angle (E2) is the opposite part of the left and right eyes (L, R) of the observer. It is visually recognized as having glitter.

For example, the second viewing angle when viewed by continuously changing from (E2) to the second ^first viewing angle (E2 ^1), the first information image lines forming a first image (3) ( In 4), the portion that is visually recognized with glitter is changed from the start point side to the end point side. Thereby, the first image (3) visually recognized in three dimensions is visually recognized as moving to the right from the broken line (F) when the broken line (F) shown in FIG. 21 (c) is used as a reference. .

  On the other hand, in the second information image line (6) that forms the second image (5), the visible portion changes from the end point side to the start point side with glitter. Thereby, in the second image (5) visually recognized in three dimensions, the second information image line (6) is brilliant in the opposite part to the first information image line (4). From the broken line (F), it is visually recognized as moving to the left.

FIG. 21 (d) is a plan view of each image (3, 5) which is visible from the second ^second observation angle (E2 ^2). When viewed in a second continuously changed and observed from an angle (E2) to the second ^second observation angle (E2 ^2), the second ^first viewing angle from the second observation angle (E2) (E2 ¹⁾ Contrary to the case where it is continuously changed, the first image (3) is visually recognized as moving to the left from the broken line (F). On the other hand, the second image (5) is visually recognized as moving to the right from the broken line (F).

  As described above, the maximum width (amount of movement) that moves to the left and right of each image (3, 5) is the same as the amount of change in the portion having the glitter of each information image line (4, 6). It moves left and right within the same range as the length of (H1).

For example, the reference line (H1) and 5 mm, when forming only the first image (3), continuously changed from a second viewing angle (E2) to the second ^first viewing angle (E2 ¹⁾ The first image (3) is visually recognized as moving approximately 5 mm to the right from the broken line (F). Also, when viewed from the second observation angle (E2) is changed continuously to a second ^second observation angle (E2 ^2), the first image (3) is approximately 5mm from the dashed line (F) to the left Visible as if moving.

On the other hand, the first image (3) and a second image (5) is formed, as shown in FIG. 21 (c), the second ^first viewing angle from the second observation angle (E2) ^(E2 1) When the image is observed while being continuously changed, the first image (3) is visually recognized as moving approximately 5 mm from the broken line (F) to the right. On the other hand, the second image (5) is visually recognized as moving approximately 5 mm from the broken line (F) to the left. Therefore, the viewer visually recognizes the first image (3) and the second image (5) as being approximately 10 mm apart.

Further, as shown in FIG. 21 (d), when viewed from the second observation angle (E2) is changed continuously to a second ^second observation angle (E2 ^2), the first image (3) is It is visually recognized as moving approximately 5 mm to the left from the broken line (F). On the other hand, the second image (5) is visually recognized as moving approximately 5 mm from the broken line (F) to the right. Therefore, the viewer visually recognizes the first image (3) and the second image (5) as approximately 10 mm apart from each other in the direction opposite to that in FIG.

  Thus, the first image (3) is formed by setting the directions of the vertices of the information image lines (4, 6) forming the first image (3) and the second image (5) in different directions. And the second image (5) is dynamically viewed in different directions. Therefore, compared with the case where one image mentioned above is formed, it becomes a formation body (1) with a high dynamic effect.

  Although the first image (3) and the second image (5) are the same image having the character shape “N”, they may be different images as shown in FIG. Moreover, if the shape of the 1st information image line (4) which comprises the 1st image (3), and the 2nd information image line (4) which comprises the 2nd image (5) are circular arc shape, As shown in FIG. 22, the shapes can be different from each other.

(Third embodiment)
FIG. 23 shows a cross-sectional view in which concave image lines are formed in the first color layer and the second color layer. Since (E3) does not have a concave shape on either side, the color mixture of the first color layer and the second color layer can be observed. In (E4), a concave image line is formed in the first color layer, and the color of the second color layer can be observed. In (E5), a concave image line is formed in the second color layer, and the color of the first color layer can be observed. Although it is possible to construct concave image lines on the same front and back, in this case, the information images on the front and back overlap, so the visibility is significantly inferior.

  The three-dimensional display formed body of the present invention can be formed on a part of a card, or the three-dimensional display formed body itself can be attached to the card.

  Hereinafter, an example of a three-dimensionally printed material that is specifically produced will be described in detail according to the mode for carrying out the invention described above, but the present invention is not limited to this example.

  As an example, a formed body (1) shown in FIG. 16 was produced. As the transparent substrate (2a) of the substrate (2), 100 μm colorless and transparent PET-G was used. For the first color layer (2b) and the second color layer (2c), a resin dye SDN (manufactured by Osaka Chemicals Co., Ltd.) is used for 100-μm colorless and transparent PET-G, and the first color layer ( 2b) was colored yellow and the second color layer (2c) was colored purple. After coloring, the transparent substrate (2a) was sandwiched between the first color layer (2b) and the second color layer (2c), heated to 100 ° C. or higher, and pressurized to produce a substrate (2).

  For the production of the first image (3), as shown in FIG. 24, a three-dimensional model (K1) serving as a basis for the processing design of the first image (3) was created. At this time, the three-dimensional model (K1) was data only on the surface. Next, as shown in FIG. 25, the three-dimensional model (K1) was corrected to a three-dimensional model (K2) obtained by cutting the solid model with parallel lines. As shown in FIG. 26, when creating the projection model (K3) of the three-dimensional model (K2) of the round slice, the portion that is not visible from the surface in the three-dimensional model (K1) is deleted by hidden line processing because it does not affect the stereoscopic vision. . By doing so, an image that can be observed stereoscopically becomes almost equivalent to the stereoscopic model (K1).

  The first information image line (4) was a symmetrical arc-shaped image line, and a plurality of the first information image lines (4) were formed at a first pitch (P1) of 100 μm. The line width of the first information line (4) was 100 μm.

  At the start point (U), an angle (θ1) formed by the tangent line (H2) of the first information line (4) with respect to the reference line (H1) and a tangent line (H2) of the second information line (6) are formed. The angles (θ1) were all 90 degrees. In addition, at the end point (D), the angle (θ2) formed by the tangent line (H3) of the first information image line (4) with respect to the reference line (H1) was 90 degrees except for the portion where the hidden line processing was performed. The angle (θ2) of the portion subjected to the hidden line process was automatically determined by the hidden line process.

  The first information image line (4) and the second information image line (6) are formed on the base material (2) with a laser marker (MD-V9600 manufactured by Keyence Corporation). A first image (3) was formed. When the first information image line (4) and the second information image line (6) are laser processed, the image data of each information image line (4, 6) is used using a known image processing apparatus. After that, the image data was input to the laser marker, and the substrate (2) was processed.

As shown in FIG. 27A, when the formed body (1) produced in the example was observed from the first observation angle (E1), the first information image line (4) had glitter. It was visible as an undrawn line. Therefore, all of the first images (3) formed by the plurality of first information lines (4) were visually recognized as planar images.

  Next, as shown in FIG. 27B, when the formed body (1) is observed from the second observation angle (E2), the first information image line (4) is an image line having glitter. As visible. The first information line (4) visible with the left eye (L) and the first information line (4) visible with the right eye are a reference line (a straight line connecting the start point (U) and the end point (D)). H1) can be visually recognized as an image line having a phase difference. Therefore, at the second observation angle (E2), the first color of the yellow color which is the first color layer (2b) color due to binocular parallax. The image (3) was visually recognized as a three-dimensional image.

  Furthermore, under transmitted light, a purple “N” -shaped image (color of the second color layer (2c) is displayed on the yellow background (color of the first color layer (2b)) as shown in FIG. 3) was visible.

DESCRIPTION OF SYMBOLS 1 3D display formation body 2 Base material 3 1st image 3E 1st element area | region 3L 1L image 3R 1R image 4 1st information image line Z formation area P1 1st pitch X1 1st direction X2 the second direction U start T vertex D endpoint H1 reference line H2 rising line H3 fall line E1 first viewing angle E2 second viewing angle E2 ^{1 second 1} observation angle E2 ^{2 second second} observation angle K1 first One image (3) Stereo model K2 Stereo model K3 stereo model K3 cut with parallel lines Projection model of stereo model K2

Claims (3)

A first color layer having a predetermined transmittance laminated on one surface of a transparent substrate having light and dark flip-flop properties, a color different from the first color layer, and a transmission that is the same as or different from the predetermined transmittance A substrate having a second color layer having a rate laminated on the other surface;
A first image that can be stereoscopically viewed is formed on at least a part of the first color layer or the second color layer,
The first image is composed of at least one first element region constituting the first image,
The first element region is composed of a circular arc-shaped first information image line having a start point, a vertex, and an end point, arranged in a line.
The arc-shaped first information image line has a concave shape formed by completely removing the color layer forming the first image and removing a part of the transparent substrate, and has the light and dark flip-flop properties. It is a line with
When the base material is observed while being continuously changed from a predetermined angle to a different angle with respect to the light source at a fixed position, the position where the incident light from the light source is reflected is the arc-shaped first information. By gradually moving on the image line, the phase of the first image visually recognized by the right eye and the phase of the first image visually recognized by the left eye are different, so that the first information image line is generated by binocular parallax. The first image consisting of the colors of the color layer formed with the three-dimensionally and dynamically viewed,
The three-dimensional display forming body, characterized in that, under transmitted light, the first image composed of colors of the color layer different from the color layer on which the first information image line is formed is visually recognized. A second image that is stereoscopically visible is formed at a position close to or adjacent to the first image,
The second image is composed of at least one second element region constituting the second image,
The second element region is composed of an arc-shaped second information image line having a start point, a vertex, and an end point arranged in a line in the same direction as the first information image line,
The arc-shaped second information image line has a concave shape formed by removing a part of the color layer and the transparent substrate forming the second information image, and has the light and dark flip-flop property. And the first information image line forming the first image and the direction of the apex are arranged in different directions,
When the base material is continuously changed from a predetermined angle to a different angle with respect to the light source, the first information image line and the second information image line have different vertex directions. The phase difference between the first image and the second image visually recognized by the right eye and the phase of the first image and second image visually recognized by the left eye allows the information to be determined by binocular parallax. The first image and the second image composed of colors of the color layer on which an image line is formed are stereoscopically viewed dynamically in different directions,
Under the transmitted light, the first image and the second image that are different from the color layer on which the first information image line and the second information image line are formed are visually recognized. The three-dimensional display formation body according to claim 1, wherein the three-dimensional display formation body is formed. The three-dimensional display formation body according to claim 1 or 2, wherein the color difference between the first color layer and the second color layer is 10 or more.

Images