US2015457A - Process for manufacturing a relief by the aid of photography - Google Patents

Description

Sept. -24, 1935. l. MORIOKA 2,015,457

PROCESS FOR MANUFACTURING A RELIEF BY THE AID OF PHOTOGRAPHY I r Filed Feb. 20, 193:5 2 SheetS-Sheet 1 wa f/ aka Patented Sept. 24, 1935 UNITED STATES PROCESS FOR MANUFACTURING A RELIEF BY THE AID OF PHOTOGRAPHY Isao Morioka, Meguro-Ku, Tokyo, Japan Application February 20, 1933, Serial No. 657,721

In Japan March 2, 1932 3 Claims. (01. 41-25) A process for manufacturing a relief by the aid of photography.

This invention relates to a process for manufacturing a relief by the aid of photography con- 6 sisting in making several sheets of pictures of the same photograph taken from an object upon the surface of which has been projected a great number of lines shadows, then obtaining strips of the pictures by cutting them off along the 10, curved lines appearing on them, in one picture at intervals of such several curved lines, and in the other pictures along the curved lines displaced in a regular order, and finally assembling and binding together such strips, each of which .15 has a curved side corresponding to the cut off curved line, with a definite relationship.

The invention has for its object to manufacture a relief by the aid of photography easily.

In the appended drawings illustrating diagram- 20 matically the process according to the invention, Fig. 1 is a perspective view explaining the process of taking a plane photograph according to the invention; Fig. 2 is a plan thereof; Fig. 3 shows a planephotograph taken by the use of the proc- 25 ess shown in Figs. 1 and 2; Fig. 4 indicates the curved lines along which cutting off is to be performed; Fig. 5 illustrates a strip obtained by the cutting off operation and. having a curved side corresponding to the cut off line;. Fig.6 illus- 30 trates in cross sectional plan the manner ofassembling many of such strips as shown in Fig. 5; Fig. 7 is one embodiment of a device adapted for use in projecting the lines shadows upon the surface of an object of which a photograph is $5 to be taken; Fig. 8 is a plan thereof; and Fig. 9 shows a screen used in the device as shown in Figs. 7 and 8.

With reference to the drawings, a screen S, which consists of a number of lines arranged 40 parallel at suitable intervals, is situated between a source of light L and an object O of which a photograph is to be taken, and the shadows of the lines are projected upon the surface of the object to form a greatnumber of curved lines C 45 thereon. In order to take a photograph of such object a photographic camera K is at such a position that the lens axis of the camera may make a suitable angle, for instance, a, with the direction in which the light passes from the source 50 of light to the object, and a photograph is taken of the object; This photograph, if necessary can be enlarged or reduced on a uniform ratio by means of a suitable method, for example, by such an enlarging method as described in U. S. Patent No. 1,853,072. Then, according to the invention a number, for example, n number of sheets of pictures are made from the same photograph and these sheets are cut off for making the strips of the same. For this purpose, the cutting off is, for example, done with the first sheet of picture 5 P, along every nth curved line appearing thereon, counted from the right hand side. Thatis, the

' cutting off is done along the nth line, 2nth line,

3nth line, etc. In the same way, with the second picture P2 the cutting off is done along every 10 (11+ [)th line, that is, along the lst line, (n+ I th line, (2n+l)th line, (3n+l)th line, etc. With the third picture P3 along every (n+2)th line, that is, along the 2nd line, (n+2)th line,- (2n+2)th line, (-3n+2)th line, etc. The cut- 15 ting oil is in a similar way proceeded with every other picture, covering the whole number of the curved lines originally formed upon the photographed object. In this way, strips Z, each with a curved side corresponding to the cut off line, are obtained. These strips are then assembled with definite intervals and with a definite relationship, and bound together so .as to form a curved surface corresponding to the complete assemblage of the curved lines of the whole strips.

In this way a relief manufactured by the aid of photography is obtained.

Suppose now, for a practical example, that the picture P made as above contains a thousand of curved lines. For such a case,,ten sheets of pictures of the same photograph are conveniently made; that is, in this case n=l0, and the cutting off is done as follows:

With the first picture P along the following numbered curved lines: In, 20, 30, 988, 990, 3

I080; with the second picture P: I, ll, 2|, 3|, 98!, MI; with the third picture P; 2, 22, 32 982, 992; and so forth. With the ninth picture P: 8, I8, 28, 38, 988, 998, and finally with the tenth picture P: 9, I9, 29, 39,

989, 999. In this way, a thousand of strips Z with relatively a great width and with a curved side corresponding to the cutoff curved line, are obtained.

These strips Z are then assembled and bound I together with definite spaces between them, and by having the upper and lower portions of each strip arranged with a definite relationship. For example, a wire W is used to connect the strips,

and paste is filled within the spaces left between object, and of such object a photograph is taken, and a relief photograph is made by making use of the curved lines appeared on the photograph. In such a case, it is the matter of course that a very great number of curved lines must be used if any precise embodiment of the relief photograph is to be obtained. However, when such a very great number of curved lines is used, the spaces left between the curved lines become unavoidably so small that the cutting off along the curved lines can not be done without much difliculty. And further, the assembling operation of the strips, obtained by cutting of! as above, will also become very difllcult.

According to the invention such drawbacks can be avoided by reproducing several sheets of photographed pictures from one and the same photograph, and by obtaining therefrom a desired number of strips of the pictures, leach strip with a curved side corresponding to the cut off line, and having relatively a great width sufllcient for an easy assemblage of the strips.

' The invention is not limited to the details of the practical example above mentioned, and may be modified suitably without departing from the salient feature of the invention that consists in that the strips Z are manufactured in such a way that they maybe of a'suillcient width for making their assemblage relatively easy. Thus the selection of the curved lines along which the cutting off is to be done may be performed suitably in other ways than as described above, according to the size of a relief to be manufactured, and the order in which the cutting off is done along the curved lines, and the number of the strips, or of the curved lines for use in the as- 5 semblage, may be properly selected and varied.

I claim:

l. A process for the manufacture of a relief of an object comprising projecting alarge number of line shadows upon the object, at which object 10 the angle is acute between the direction of a projecting light and the axis of the lens of a camera, making a plurality of sheets of pictures of said object-with the line shadows projected thereon, cutting each of said sheets along a series of nonl5 successive lines, separated by a predetermined number of spaces, each number of the series along which one sheet is cut being one space from the corresponding number of the series next to that series and assembling and binding together the 20 strips thus obtained in the original order of curved lines.

2. The process as set forth in claim 1 in which each sheet is out along lines separated by a number of spaces which is an exact divisor of the 25 total number of spaces.

3. The process as set forth in claim 1 in which the number of pictures taken is an exact divisor of the number of spaces between the line shadows.

ISAO MORIOKA.

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