Sho which consists of sho the eye of matrix

摘要

PROBLEM TO BE SOLVED: To provide a matrix type two-dimensional code which can include a large quantity of information and also can surely be read. SOLUTION: A matrix type two-dimensional code l is obtained by putting the color codes 2a, 2b and 2c on each other, and these color codes are formed by properly arranging the squares 4 of specific colors in a square pattern 3 consisting of vertical and horizontal squares 4. Thus, the code 1 is equivalent to a code that is obtained by combining together the two-dimensional codes of almost the same size and different colors in plural sets. In such a constitution, the code 1 can include a large quantity of data per unit area and the availability of two-dimensional codes can be improved.