Optical Recording Medium
AssigneePioneer Corporation
InventorsYasuo Hosoda, Akihiko Yamashita
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Abstract
The main object of the present invention is to provide an optical recording medium with no need to use a control subject substance of the PRTR law, capable of using for an optical recording device with a blue laser, and giving consideration to the environmental aspect. To attain the object, the present invention provides an optical recording medium comprising: a reflective layer containing an aluminum composition as the main component including both aluminum or an aluminum alloy and a metal oxide of a metal other than aluminum; and a dielectric protective layer, formed in contact with the reflective layer, containing a niobium composition as the main component including both silicon dioxide or titanium dioxide and a niobium nitrided oxide.
Claims6
An optical recording medium comprising:
- a reflective layer containing an aluminum composition as the main component including both aluminum or an aluminum alloy and a metal oxide of a metal other than aluminum;
- and a dielectric protective layer, formed in contact with the reflective layer, containing a niobium composition as the main component including both silicon dioxide or titanium dioxide and a niobium nitrided oxide.
Dependencies are inferred from the claim text.