Optical recording medium, recording system and reproducing system.

摘要

An optical recording medium includes in sequence a transparent substrate (1) a light-reflecting layer (2), a transparent intermediate layer (3) and a light-absorbing layer (4). The light-reflecting layer, the transparent intermediate layer and the light-absorbing layer in combination constitute a multi-layer optical element showing a high reflectance with respect to a reproducing light beam having a wavelength lambda (r). The resultant high reflectance state in the non-recorded region provides a high contrast in comparison with a record pit where the high reflectance multi-layer optical element is destroyed, and also provides the record with an improved resistance to degradation due to irradiation with the reproducing light beam. <IMAGE>