申请人:Fuji Photo Film Co., Ltd.
公开号:US04900648A1
公开(公告)日:1990-02-13
The present invention relates to an optical information recording medium for carrying out recording, reproduction and erasing with laser beams which comprises a support having carried thereon at least one methine dye which consists of an azulene nucleus, at least one of 10 carbon atoms of which is replaced by chalcogen atom(s) and/or nitrogen atom(s), and further whose 7-membered ring part is substituted with a methine bond having at the terminal an auxochrome which forms a conjugated resonance chromophore together with a 10 .pi. electron system of the nucleus. Optical information recording media of the invention have adequate recording characteristics having high C/N, and have high stabilities against long-term preservation or against long-time reading.
本发明涉及一种光学信息记录介质,用于通过激光束进行记录、再生和擦除,其包括一个支撑体,其上搭载至少一种甲基染料,该甲基染料由一个蓝莓核组成,其中至少有10个碳原子被硫族原子和/或氮原子所取代,且其7元环部分被一个甲基键取代,该甲基键在末端具有一个辅基,该辅基与核的10个π电子系统形成一个共轭共振色团。本发明的光学信息记录介质具有高C/N的充分记录特性,并且对长期保存或长时间阅读具有高稳定性。