TH22390A - Optical vectors with optical markers - Google Patents

Abstract

The information carrier has a trough of SOCs (10) made from the mark read. Yes, with machines and patterns (2) created from the other markings (10,12) may be replaced by heating energy for the purpose of value removal or for the purpose of deforming each other. Information carrier Information in the furrows Information memos (10) may be read by the path of the infrared reading beam. The pattern (12) creates an optical effect that changes when the information carrier is observed and moves in the light. Visible Some of the notation (10) and pattern (2) grooves share the same space; patterns (12) are built from sub-surfaces (17), which occupy only a small portion of the area. Therefore, machine readability of information is not affected by machine-readable information in the memorandum (10) and the visual acuity of patterns (12) that appear only to the human eye. May be changed only together. Such information carrier is suitable for use as a value card. Or for Identify specific documents such as pass cards, banknotes, identity cards, etc.

Claims (1)

1. Information carrier (1) with an optical machine-readable mark (5) a structured mark (6) with a diffraction effect embedded in the substrate (2) of the material. Thermoplastic And a covering layer (4) or a layer of lacquer (7) of a thermoplastic material And adhesives layer (8), and which can be replaced by heating, which has the characteristics that When the information carrier (1) is observed and moves under normal illumination conditions, the mark (5) produces a changing optical effect. For human eyes And where the information reads the tag: