JPH0323359B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention relates to a three-dimensional model whose surface can be photographed to show the color and brightness of the original three-dimensional object.

(b) Conventional technology Various techniques have already been devised for replicating a three-dimensional model into an original three-dimensional object, but in order to reproduce even the surface color and brightness of the original three-dimensional object, it is necessary to He would take a photo of the object in advance, make a replica of the three-dimensional model, and draw it by hand while comparing it to the photo.

(c) Problems to be solved by the invention However, this method is time-consuming and difficult to accurately reproduce the color and brightness of the original three-dimensional object.

The purpose of this invention is to easily obtain the colors and brightness of the original three-dimensional object using photography and optical fibers.

(d) Means for Solving Problems To explain this invention based on drawings, first, a life-sized photograph B of a three-dimensional object A, which is a prototype as shown in Fig. 1, is taken as shown in Fig. 2. 3, place a pipe E as shown in Figure 3 between a mold C made of the photographed surface and a three-dimensional model D obtained by pouring the casting material into the mold C, and then insert the pipe E into the pipe E. Fill it with a bundle F of optical fibers that are parallel to the pipe E and have the same length as the pipe E, and press the mold C and the three-dimensional model D so that the pipe E is sandwiched from both sides. However, at this time, if there is no pipe E in the middle, the three-dimensional model D is pressed into the mold C in such a positional relationship that it fits perfectly. Then, the bundle F of optical fibers is pushed inside the pipe E, and as shown in FIG. 4, unevenness similar to that of the three-dimensional model D is created on the surface 1.
Therefore, by cutting the bundle F of optical fibers together with the pipe E, and gluing the optical fibers so that they do not shift any further, the surface 1 will have the same unevenness as the three-dimensional model D, as shown in Figure 5. A three-dimensional model G made of optical fiber is obtained.

Therefore, the original three-dimensional object A shown in Figure 2 and the life-sized photograph B are placed on the bottom surface 2 of the three-dimensional model G made of a bundle of optical fibers as shown in Figure 6. Glue the model G in such a position that the unevenness on the surface 1 overlaps with the original three-dimensional object A. Then, the length of each optical fiber that is in contact with each point of the photographic image in photo B is exactly the length of the original three-dimensional object plus a certain distance, and the bottom surface 2 is the incident surface and the surface 1 If we consider this as the exit surface, it becomes a three-dimensional model of the target optical fiber.

(e) Effect The three-dimensional model G made of optical fiber obtained as described above has unevenness on the surface 1 that is exactly like the original three-dimensional object A, and due to the properties of the optical fiber,
The light emitted from the photograph can be seen as if it were emitted from the uneven parts of the surface 1.

(F) Embodiment Figure 7 shows another embodiment, in which a slide H obtained by photographing in the same manner as photograph B is used instead of photograph B as the bottom surface 2 of a three-dimensional model G using an optical fiber.
It was also glued in the same way, and was made to be visible by shining light from the bottom.

(G) Effects of the Invention As explained above, this invention provides a method for creating the colors and brightness of the original three-dimensional object in a three-dimensional model that is a direct reproduction of a photograph by using a bundle of optical fibers. can be used.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a three-dimensional object, Figure 2 is a plan view of a photograph of the three-dimensional object, Figures 3, 4, and 5.
The figure is a cross-sectional view showing the process of manufacturing a three-dimensional model using optical fibers, FIG. 6 is a cross-sectional view of the completed three-dimensional model using optical fibers, and FIG. 7 is a perspective view of a three-dimensional model using optical fibers according to another embodiment. figure. A...Three-dimensional object, B...Photo, C...Model, D...
3D model, E... Pipe, F... Bundle of optical fibers, G... 3D model made of optical fibers, 1... Surface of 3D model made of optical fibers, 2... Bottom of 3D model made of optical fibers, H... …slide.

Claims (1)

[Claims] 1 Attach a photo or slide of a three-dimensional object to one end of a bundle of parallel optical fibers to serve as the incident surface, and calculate the length of each optical fiber that is in contact with each point of the photographic image or slide image as the basis. A three-dimensional model made of optical fiber, which is cut to a length equal to the height of the three-dimensional object plus a certain distance, and whose other end is used as an output surface.