| 摘要 |
The invention relates to an access authorization system (1) comprising at least one arrangement (110) of a plurality of microparticles (10) and at least one identification unit (120), wherein the arrangement (110) of the microparticles (10) is affixed to the identification unit (120), wherein the arrangement (110) of the microparticles (10) forms a forgery-proof identification (K), wherein a microparticle (10) has at least one first layer (20) and at least one second layer (30). |
