| abstract |
The present invention relates to the use of dye salts of indolinium diazamethine type cations and azo metal complex anions based on pyridinones in optical layers for optical data recording, preferably lasers having a wavelength of up to 450 nm. Relates to the use in the optical layer for optical data recording. Furthermore, the present invention provides a light-recording / recording information that can be recorded and reproduced using the radiation of a blue laser, using a dye salt of an indolinium diazamethine type cation and an azo metal complex anion based on pyridinones in an optical layer. The present invention relates to a once read many (WORM) type optical data recording medium. |