| 摘要 |
Deciphering plate consisting of male and female pairings which match only one another. One side of each plate consists of prisms which have the function of breaking up a text or image into interpretability, and the corresponding plate has the function of restoring the image to its original appearance. This has the advantages that it is an alternative to computerized encryption and that it can be effected manually by anyone. The deciphering plate is preferably made of a transparent material which is either hard or soft and thick or thin. With the deciphering plate, it is possible to communicate both internally and externally without the risk of unauthorized persons being able to interpret what is written. <IMAGE> |
