Optical data carrier comprising a preferably transparent substrate which may, if desired, have previously been coated with a protective layer and to whose surface a light-writable information layer, if desired a protective layer, if desired an adhesive layer and finally a covering layer have been applied, which can be written on and read by means of blue light, preferably laser light, where the information layer comprises a light-absorbent compound, characterized in that at least one dye which cyclizes thermally is used as light-absorbent compound.
光学数据载体,包括一个最好是透明的基板,如果需要,该基板可以事先涂上一层保护层,在其表面涂上一层可光写的信息层,如果需要,再涂上一层保护层,如果需要,再涂上一层粘合剂,最后再涂上一层覆盖层,该载体可以通过蓝光,最好是激光来写入和读取,其中信息层包括一种光吸收化合物,其特征在于至少使用了一种可热循环的
染料作为光吸收化合物。