Method using an assembly of means capable of making visible complex latent information and installation for carrying out this method

Abstract

Abstract The read head (24) is asymmetric, being formed by an inclined (oblique) conical section. The image of the latent information that it provides is deformed or "skewed" with respect to that which would be provided by the same read head if it were perfectly symmetric (right conical section). This results in the various categories of users of the installation being able to be equipped with different read heads each providing its own image of the information made visible, which avoids any risk of indiscretion, each category of users having access to a part of the stored data corresponding to the specific image which its own read head provides for it. <IMAGE>

Inventors

• 👤 Eric Bauer

Bibliographic Details