The present invention relates to specific pentamethine cyanine azo complex dye compounds and their use as dyes in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength from 630 to 670 nm.
The invention further relates to an optical layer comprising said dyes and to a write only read many (WORM) type optical recording medium capable of recording and reproducing information with radiation of a red laser, which employs said pentamethine cyanine azo complex type dye in the optical layer.
本发明涉及特定的五甲基
氰基偶氮络合
染料化合物及其在光学数据记录的光学层中作为
染料的用途,最好是使用波长为 630 至 670 纳米的激光进行光学数据记录。
本发明还涉及一种包含上述
染料的光学层和一种只写多读(WORM)型光学记录介质,这种介质能用红色激光的辐射记录和复制信息,它在光学层中采用了上述五甲基
氰基偶氮络合
染料。