Optical tape

Details Optical tape Optical tape

G - Physics

11

B

G11B 7/24 (2006.01) G11B 7/253 (2006.01) G11B 25/06 (2006.01)

Patent

CA 2086467

ABSTRACT OF THE DISCLOSURE Disclosed herein is an optical tape comprising: a substrate whose a center-line average roughness (RaB) on the surface of one side is not more than 0.005 µm and the number of coarse protuberances having a height of not less than 0.10 µm in the surface of that side is not more than 10 protuberances/cm2, and an optical recording layer formed on the surface whose the RaB is not more than 0.005 µm.

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