The present invention relates to new azo compounds and to their use as dyes in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 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 blue laser, which employs an azo type dye in the optical layer.
本发明涉及新的偶氮化合物及其在光学数据记录光学层中作为
染料的用途,最好是使用波长达 450 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,这种介质能用蓝色激光辐射记录和复制信息,它在光学层中使用了偶氮类
染料。