New coumarin type dyes for optical data recording
    2.
    发明公开
    New coumarin type dyes for optical data recording 审中-公开
    Neue Farbstoffe vom Coumarintyp zur optischen Datenaufzeichnung

    公开(公告)号:EP1516895A1

    公开(公告)日:2005-03-23

    申请号:EP03021278.1

    申请日:2003-09-19

    IPC分类号: C09B23/16 G11B7/24 C09B57/02

    摘要: The present invention relates to new coumarin 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 a coumarin type dye in the optical layer.

    摘要翻译: 本发明涉及新的香豆素化合物及其作为用于光学数据记录的光学层中的染料的用途,优选用于使用波长高达450nm的激光进行光学数据记录。 本发明还涉及一种包含所述染料的光学层,以及能够利用蓝色激光辐射记录和再现信息的仅写入许多(WORM)型光学记录介质的光学层,其在光学中采用香豆素型染料 层。