Data carrier with an optical authenticity feature, and method of making and checking the data carrier.

The present invention relates to a data carrier in which information is provided by means of a laser beam, in an area of ​​the interior volume, this information is visible in the form of changes in optical properties due to an irreversible change of the material. caused by the laser beam, characterized in that the data carrier contains at least one transparent synthetic layer, which is provided at least in an area with a raised surface in the form of a screen or lenticular screen, in which at least part of the information provided by the laser beam, is provided through this screen or lenticular screen, in the that the change in optical properties is limited to areas (pixels) whose radial extent is smaller than the diameter of an individual lens, in such a way that they are only visible on very limited angular scales because of the optical effect of the lenses and in which pieces of information that remain together and extend over the area of ​​the screen or lenticular screen, and that are recorded using laser beams from a very limited angular scale, they can then be read and / or detected by measurement techniques on the very unlimited angular scale.