发明名称 |
Authentication apparatus and method |
摘要 |
An authentication apparatus operative to determine the authenticity of an item comprising a film substrate responsive to detection that a portion of said item located in a measuring region of said apparatus has a predetermined birefringence characteristic, said apparatus comprising: an item detection arrangement operative to determine if at least a portion of an item is located in a measuring region of said authentication apparatus; and an optically-based birefringence measuring apparatus, wherein said authentication apparatus is operative to compare a measured birefringence characteristic with a predetermined birefringence characteristic and to produce an authenticity signal indicative of authenticity or otherwise of said item based upon said comparison, said apparatus further comprising a control means operative to control output of said authenticity signal from said apparatus responsive to determination, by said item detection arrangement, of presence or otherwise of said at least a portion of said item in said measuring region. |
申请公布号 |
US9600953(B2) |
申请公布日期 |
2017.03.21 |
申请号 |
US201615081316 |
申请日期 |
2016.03.25 |
申请人 |
INNOVIA FILMS LIMITED |
发明人 |
Stewart Robert |
分类号 |
G06K7/10;G07D7/12;G06K7/00 |
主分类号 |
G06K7/10 |
代理机构 |
Andrews Kurth Kenyon LLP |
代理人 |
Wang Ping;Andrews Kurth Kenyon LLP |
主权项 |
1. An authentication apparatus operative to determine the authenticity of an item comprising a film substrate responsive to detection that a portion of said item located in a measuring region of said apparatus has a predetermined birefringence characteristic, said apparatus comprising:
an item detection arrangement operative to determine if at least a portion of an item is located in a measuring region of said authentication apparatus; an optically-based birefringence measuring apparatus, and a control means operative to control output of said authenticity signal from said apparatus responsive to determination, by said item detection arrangement, of presence or otherwise of said at least a portion of said item in said measuring region, wherein said authentication apparatus is operative to compare a measured birefringence characteristic with a predetermined birefringence characteristic and to produce an authenticity signal indicative of authenticity or otherwise of said item based upon said comparison. |
地址 |
Wigton, Cumbria GB |