Micro-hole processing for multi-directional parallax effect

Abstract

To solve the problems that existing lenticular lenses have a parallax effect when moving a viewpoint in two directions, such as left and right or up and down, and are not effective when moving the viewpoint in a direction different from a direction intended by a manufacturer, and that processing the lenses requires specialized skills and machines, and it is thus not possible to generally prototype the lenses in an easy way.SOLUTION: By boring tiny holes at narrow intervals on one side of a material of a certain thickness, it is possible to produce an effect in which appearance changes depending on an angle. A parallax effect is effective for freely moving a viewpoint in multiple directions. Also, the processing can be performed using machines such as a laser cutter and a 3D printer, which are now often owned by individuals or rented out to stores, so it can be easily produced without having to order for a manufacturer.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] By drilling tiny holes (hereinafter referred to as micro-hole processing) on ​​one side of a material with a certain thickness, it is possible to create an effect in which the appearance changes depending on the angle (hereinafter referred to as multi-directional parallax effect). [Background technology]

[0002] Here's how it works: When the direction of the hole is parallel to your line of sight (when your eyes are directly in front of the surface with the hole), you can see through the hole to the other side. As the surface with the hole tilts, the visible area of ​​the side of the hole increases, filling up the hole and making it impossible to see the other side (see Figure 1).

[0003] It has been found that a sufficient multi-directional parallax effect can be achieved when the hole diameter is 1mm to 1.2mm, the material thickness is 2mm to 3mm, and the spacing between holes is 1mm to 1.2mm. Even if the size is changed, the multi-directional parallax effect can be achieved as long as the ratio of the hole diameter, material thickness, and spacing between holes is maintained.

[0004] Currently, micro-holes are machined using the following two methods. The first is laser cutting, in which holes are created by cutting a flat material into a circle using a laser cutter, and this is done all over the surface. The second is 3D printing, in which a model with holes is created using 3D modeling software and output using a 3D printer. Modeling is done by deciding on an appropriate shape (body A), then placing cylinders (body B) at all vertices of the mesh, and then using a Boolean operation to calculate the difference by subtracting body B from body A.

[0005] As for the material, as long as it has the appropriate thickness and can be micro-hole-machined using the two methods described above, the multi-directional parallax effect can be achieved regardless of color, transparency, or softness of the material. Materials that have been successfully used so far for the laser cutting method include transparent acrylic sheets (2mm, 3mm, 4mm), opaque colored acrylic sheets (2mm, 3mm, 4mm), polyethylene cushioning sheets (2.8mm), and rubber sheets (2.3mm). For the 3D printing method, transparent resin is used. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2006-251608 Summary of the Invention [Problem to be solved by the invention]

[0007] Lenticular lenses are a prior art technology for creating an effect where the appearance changes depending on the angle (hereinafter referred to as the parallax effect). Lenticular lenses change the way the viewer looks when the viewer moves in two directions, such as left and right or up and down, and are not effective when the viewer moves in a direction different from the direction intended by the creator. There is a need for more free motion by the object that creates the parallax effect, or for more free movement of the viewer's view to enjoy the parallax effect.

[0008] The manufacturing of lenticular lenses and lenticular plates, as well as lenticular printing, requires advanced technology. For this reason, it is common to order from specialized companies, and it is considered difficult for non-manufacturers to freely produce them. [Means for solving the problem]

[0009] By drilling tiny holes (performing micro-hole processing) on ​​one side of a material with a certain thickness, the present invention can create a parallax effect (multi-directional parallax effect) that allows the observer to freely move their viewpoint in multiple directions, without being limited to up, down, left, or right. [Effects of the Invention]

[0010] By applying micro-hole processing, it is possible to obtain a more flexible multi-directional parallax effect. By applying the multi-directional parallax effect to various colors, transparencies, softness of materials, shapes, and uses, the phenomena that can be observed vary, and can be broadly classified into the following four types.

[0011] (Phenomenon 1) Depending on the angle, the other side is hidden or visible. This can be achieved by drilling micro-holes into a material with a certain thickness.

[0012] (Phenomenon 2) Patterns and letters disappear or appear depending on the angle. This can be achieved by increasing the thickness of only the letters or patterns.

[0013] (Phenomenon 3) The color changes depending on the angle, creating a pseudo-structural color. This can be achieved by applying different colors to the front and back of the material.

[0014] (Phenomenon 4) When micro-holes are drilled into a curved surface, the areas that appear bright and transparent change depending on the angle, making matte materials appear pseudo-glossy. DETAILED DESCRIPTION OF THE INVENTION

[0015] Currently, there are two methods for performing micro-hole machining:

[0016] <Laser cutting method> A flat material is cut into circular shapes with a laser cutter, creating holes all over the surface. Laser cutters are generally available for rental from stores or as university facilities, and can be created simply by creating the data to send to the laser cutter.

[0017] <3D printing method> A model with holes is created using 3D modeling software and printed out using a 3D printer. Modeling is done by deciding on an appropriate shape (body A), then placing cylinders (body B) at all vertices of the mesh, and then using a Boolean operation to find the difference between body A and body B. In recent years, more and more people are owning 3D printers, and there are places that rent them out, and it is now possible to learn modeling on your own via the internet.

[0018] Therefore, even people who are not related to the manufacturing industry can easily reproduce the micro-hole processing for the multi-directional parallax effect. [Example]

[0019] An art piece in which ripples appear and disappear (see photo A) [Example]

[0020] An art piece in which an exclamation mark appears and disappears (see photo B) [Example]

[0021] A 1 / 30 scale model of a window display that allows the interior of the store to be seen and disappear (see Photo C) [Example]

[0022] An object whose color gradation changes depending on the angle (see Photo D) [Industrial Applicability]

[0023] As in Examples 1 and 2, the effect of making patterns or letters appear can be used in advertisements, signs, art works, and installations, and is particularly preferable for use in places and applications where an observer can enjoy the fact that the appearance changes depending on the distance between the object and the observer.

[0024] Example 3 can be used for the facade design and window displays of roadside shops. As the observer moves, the inside of the store gradually becomes visible, and then disappears again as they pass by, creating a parallax effect that delights the viewer. Because the appearance changes depending on the distance between the object and the observer, people walking in front of the store, people in cars driving on the road, and people walking on the sidewalk on the opposite bank will all see different changes.

[0025] As in Example 4, the effect of the color gradation changing depending on the angle can be used as an object or lampshade. When used as a lampshade, the color of the gradation also changes depending on the color of the lamp inside. [Brief explanation of the drawings]

[0026] [Figure 1] Diagram showing how the parallax effect is achieved by micro-hole processing [Figure 2] Actual size drawing of 1mm diameter micro-hole processing [Figure 3] 10x magnification of 1mm diameter micro-hole processing. "Photo A" A series of photographs showing the changes in Example 1 (an art piece in which ripples appear and disappear). [Figure 4] Front view of "Art piece with appearing and disappearing ripples" [Figure 5] Side view of "Art piece with appearing and disappearing ripples" [Figure 6] An oblique view of the "Art piece in which ripples appear and disappear" [Figure 7] Details of the "Art piece in which ripples appear and disappear" "Photo B" Example 2: A series of photographs showing the changes in the "Art piece in which exclamation marks appear and disappear." [Figure 8] Diagram of board A that makes up the "Art piece in which an exclamation mark appears and disappears" [Figure 9] Diagram of board B that makes up the "Art piece in which an exclamation mark appears and disappears" [Figure 10]A diagram of boards A and B being glued together to complete the "art piece in which an exclamation mark appears and disappears." "Photo C" A series of photographs showing the changes in Example 3, "a 1 / 30 scale model of a window display in which the interior of a store becomes visible and disappears." [Figure 11] This shows two plates with fine holes that make up a 1 / 30 scale model of a window display that makes the interior of the store appear and disappear. "Photo D" A series of photographs showing the changes in the appearance of Example 4, an object whose color gradation changes depending on the angle. [Figure 12] Front view of an object whose color gradation changes depending on the angle [Figure 13] A front view of the "Object whose color gradation changes depending on the angle" rotated 45 degrees [Figure 14] An oblique view of an object whose color gradation changes depending on the angle [Figure 15] Bottom view of the object whose color gradation changes depending on the angle [Figure 16] Detailed view of the object whose color gradation changes depending on the angle

Claims

1. This is a processing method that creates an effect in which the appearance changes depending on the angle by drilling tiny holes (the size of the holes is described in Background Art 0003) at close intervals all over a material of a certain thickness (the degree of thickness is described in Background Art 0003).

2. In addition to the processing method described in claim 1, this technology allows for making certain parts (patterns, figures, letters, etc.) thicker than other parts, so that the parts (patterns, figures, letters, etc.) appear to disappear or appear depending on the angle.

Images