Record carrier in which information can be written and which...

Details Record carrier in which information can be written and which... Record carrier in which information can be written and which...

G - Physics

11

B

352/32.4

G11B 7/24 (2006.01) G11B 7/241 (2006.01)

Patent

CA 1228423

12 ABSTRACT: A record carrier is described for optically writing and reading information, which record carrier is provided with a pre-formed track. This track is formed by a ridge 4' disposed on the surface of a substrate 5 and the recording layer comprises a dye layer 6 having such a thickness at the location of the ridge that a write beam can produce a maximum optical effect therein, the dye layer being thicker at locations 13' outside the ridge.

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