申请人:TSAI Yen-Cheng
公开号:US20080226860A1
公开(公告)日:2008-09-18
The present invention relates to a recording medium consisting of transparent substrate, recording layer, reflective layer, and protective layer, wherein the recording layer comprising at least one organic optical dye of structural formula (1):
wherein each of R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, X, and Y is defined as herein. The recording medium of present invention is useful as a write once recording medium, particularly is using as a recording medium for laser wavelength of 630 to 660 nm.