JPH10305700A - Method for expressing design on building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To express a difference between dark and light of a design by forming numerous depressed spot-like pores each having substantially equal shape or size in profile at a predetermined interval as pixels, altering depths from each other, and changing size or degree of its shade according to the difference. SOLUTION: Numerous pores 2 are provided on a surface of a concrete 1, and only their depths are changed. In this case, when a light is, for example, emitted from an obliquely right side, if the pore 2 is deep, the light does not arrive at a deep part and bottom, and hence, a shade 3 is extended not only to the right side but also to the deep part and bottom. Meanwhile, when the pore 2 is shallow, the light is arrived at the bottom to reduce the shade 3, and simultaneously a reflected light from the bottom strongly stimulates a visual sense to cancel an effect of the shade. Therefore, a difference of the depths of the pores 2 is expressed as dark and light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used as a method of forming a pattern on a surface portion such as a wall surface or a ceiling surface of a building or a structure and expressing the pattern.

[0002]

2. Description of the Related Art Mural paintings and reliefs (semi-sculptural sculptures) have conventionally been used as a method of decorating the walls of buildings or structures.
Etc. are well known.

Recently, an image obtained by photographing is digitally processed, and the digitally processed image is spray-painted on a wall by a huge ink jet printer method to form a mural, or a large number of light emitting diodes are arranged as pixels, It is also performed that a huge display image is formed on a wall surface of a building by blinking by a television system.

[0004]

The walls and the like of a building are exposed to the sun, wind and rain for a long period of time. It can be said that this method is suitable for objects. The relief is visually perceived as a three-dimensional object even when viewed from a distance, due to the brilliance caused by the reflection of the convex portion and the shadow formed in the concave portion.

However, in such a normal relief, if the area of the concave and convex portions is larger than a certain value, the difference in lightness and darkness can only be on the boundary line, and the difference in shading as in a photograph or illustration does not occur. In particular, dark areas have the same brightness as bright areas when the area is large, and the relief becomes less sharp compared to three-dimensional sculpture. In other words, there is a drawback that the originally necessary dark (shadow or dark) portion cannot be sufficiently created when expressing only with light and shadow without relying on coloring.

The present invention solves these disadvantages without using inks and paints, and provides a simple pattern for a building with simple irregularities that does not require expensive techniques of a professional sculptor such as a conventional relief. It is an object to provide a method for expressing

[0007]

SUMMARY OF THE INVENTION A spot-shaped small hole (2) having substantially the same contour shape or size in the surface of a building such as the surface of concrete (1) which is large enough to receive light. Are formed innumerably at predetermined intervals, and these are used as pixels. The depths of the small holes (2) are changed with each other, and the difference or the size or degree of the shadow (3) is changed to express the shading difference of the symbol. I do.

Alternatively, in the small hole (2) formed on the surface of a similar building, the angle of depression may be changed, and the difference may change the degree of the shadow (3) to express the shading difference of the symbol.

Alternatively, the distribution density of the small holes (2) formed on the surface of a similar building can be changed with each other, and the distribution density of the shadow (3) can be changed by the difference to express the shading difference of the design. Good. In this case, the depths of the small holes (2) are basically the same.

In order to form a design surface with such irregularities specifically, for example, a photograph or illustration serving as an original image is decomposed into halftone pixels in the same manner as in photolithography to perform stippling / replacement, and the black-and-white density is determined by a scanner. Reproduces halftone images by changing the depth and angle of mechanically punching small holes into plastic materials such as clay and metal plates at regular intervals by using image information converted to the magnitude of the read electrical signal. Then, using this as a prototype, an elastomer mold is prepared by pouring silicone rubber or the like, and the ready-mixed concrete is filled into the mold, cured, and then released. On the surface of the demolded concrete (1), countless small holes (2) serving as pixels are formed.

[0011]

According to the present invention, for example, when countless small holes (2) are provided on the surface of concrete (1) as shown in FIG. 1 and only the depths thereof are varied with each other, for example, when light is incident diagonally from the right side, If the eyelet (2) is deep, light cannot reach the deep part and the bottom part, so that the shadow (3) expands not only to the right side of the eyelet (2) but also to the deep part and the bottom part. As it reaches and the shadow (3) decreases, the reflected light from the bottom strongly stimulates the vision to offset the effect of the shadow. Therefore, the difference in the depth of the small hole (2) is expressed as light and shade.

When the angle of depression of the small hole (2), that is, the angle of the side surface, is changed, the light generally becomes more susceptible to light as it goes upward, so that the shadow decreases and the reflected light becomes stronger. That is, it becomes a light color, and vice versa.
When the angles of the left and right side surfaces are changed, the angle differs depending on the direction of the incident light. Therefore, it is also possible to manufacture an image whose design changes due to movement of sunlight or the like.

In the case where the depth and the depression angle of the small hole (2) are the same and the distribution density is different, the distribution density of the shadow (3) appears differently, so that it is expressed as shading.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the original figure is replaced with a halftone dot and its own black density is read by a scanner to obtain image information consisting of electric signals. Driving a large number of prepared clay plates into a cylindrical small hole (2) having a diameter of 10 mm and a depth of 2 to 20 mm
It is formed every 5 mm, and 50
0, an original mold of 150,000 pixels consisting of 300 columns is prepared, an elastomer mold is produced from polyurethane in predetermined units from this, filled with ready-mixed concrete, and the demolded concrete panels are arranged side by side. It will be a wall.

[0015]

As described above, according to the present invention, it is possible to express a rather complicated and durable image only with unevenness without using any painting material that may cause fading or peeling, and it is difficult to use a dark place in relief. In addition, there is an effect that the machine can be manufactured without special advanced technology, the cost can be reduced, and the repair and remodeling can be greatly facilitated because the unevenness is small and uniform.

[Brief description of the drawings]

FIG. 1 is a sketch drawing of a partial section of a concrete panel according to the present invention.

[Explanation of symbols]

 1 …… Concrete 2 …… Small hole 3 …… Shadow

Claims (3)

[Claims] 1. A surface portion of a building having a sufficient size and receiving light, innumerably forming spot-shaped small holes having substantially the same contour shape or size at predetermined intervals to form pixels, A pattern expression method for a building, wherein the depths of the small holes are changed with each other, and the difference is used to express the difference in shading of the pattern. 2. In the surface of a building having a sufficient width and receiving light, spot-shaped small holes having substantially the same contour shape or size are formed innumerably at predetermined intervals to form pixels, A symbol expression method for a building, characterized in that the angles of depression of the small holes are changed with each other, and the difference between the angles is used to express the difference in shading of the symbol. 3. An infinite number of spot-shaped small holes having substantially the same contour shape or size are formed in a surface portion of a building having a sufficient width and receiving light, and these are formed as pixels, and the distribution of the small holes is made. A pattern expressing method for a building, characterized by changing densities of each other and expressing a difference in shading of the pattern by the difference.