Multilayer optical recording medium with thickness ranges...

Details Multilayer optical recording medium with thickness ranges... Multilayer optical recording medium with thickness ranges...

2006-11-28

2006-11-28

Watko, Julie Anne (Department: 2627)

Dynamic optical information storage or retrieval

Optical storage medium structure

Reexamination Certificate

active

07143426

ABSTRACT:
An optical recording medium includes a substrate, a protective layer, three or more information recording layers formed between the substrate and the protective layer and transparent intermediate layers each formed between neighboring information recording layers and capable of recording data in the three or more information recording layers and reproducing data recorded in the three or more information recording layers by projecting a laser beam onto the three or more information recording layers via a light incidence plane constituted by the surface of either the substrate or the protective layer, wherein neighboring transparent intermediate layers facing each other across an information recording layer have different thicknesses. According to the thus constituted optical recording medium, it is possible to reduce interlayer cross-talk.

REFERENCES:
patent: 5875169 (1999-02-01), Hatwar
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patent: 3-49054 (1991-03-01), None
patent: 2001-155380 (2001-06-01), None
patent: 2003-013201 (2003-01-01), None

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