Use of bis-styryl dyes in optical layers for optical data recording

摘要

The present invention relates to the use of bis-styryl 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 a write only read many (WORM) type optical data recording medium capable of recording and reproducing information with radiation of blue laser, which employs a bis-styryl type dye in the optical layer.