Optical recording member.

摘要

An optical recording member for optical recording and retrieval of information which comprises a reflective substrate (11) having coated thereon a thin layer (12) of an optical dielectric material and a thin layer (13) of tellurium on the dielectric layer. Marking of the recording member is achieved by the use of a laser controlled in accordance with the information to be recorded. The construction of the tellurium and the dielectric layers is such as to achieve anti-reflecting conditions at the marking wavelength to obtain maximum efficiency. Other layers (16, 17, 19) may be provided in the optical recording member to facilitate the manufacturing process, to provide strength or protection, and for other purposes.