公开(公告)号：US20140092475A1

公开(公告)日：2014-04-03

申请号：US14096092

申请日：2013-12-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Vivek Krishnan ,  Gaurav Manik ,  Gajendra Rao

IPC: G02B5/128

CPC classification number: B42D25/30 ,  B42D25/29 ,  B42D2035/20 ,  B42D2035/24 ,  B42D2035/34 ,  C03C12/02 ,  G02B5/128 ,  G07D7/12

Abstract: A security laminate for authenticating an article and a method for authenticating articles is disclosed. The security laminate includes a transparent binder layer and retroreflective microspheres such that the security laminate exhibits a covert switching effect when exposed to particular conditions.

Abstract translation: 公开了一种用于验证物品的安全层压板和用于认证物品的方法。 安全层压板包括透明粘合剂层和逆反射微球，使得当暴露于特定条件时，安全层压板显示隐蔽切换效应。