申请人:——
公开号:US20040152017A1
公开(公告)日:2004-08-05
Copy-protected optical medium utilizing a composition comprising a transient optical state change security materials capable of changing optical state when exposed to a wavelength of about 630 nm to about 660 nm and an electron transfer agent.
使用一种包含瞬态光学状态改变安全材料的防拷光学介质,当暴露于约630纳米至约660纳米的波长时,该材料能够改变光学状态,并且还包括一个电子转移剂。