Optical recording medium

Details Optical recording medium Optical recording medium

2011-01-25

2011-01-25

Tran, Thang V (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

Reexamination Certificate

active

07876664

ABSTRACT:
An optical recording medium including three or more recording layers is provided. The optical recording medium includes an L0 layer, an L1 layer, an L2 layer, and an L3 layer as the recording layers and first to third light transmitting spacer layers respectively arranged between the recording layers. A refractive index n3of the third light transmitting spacer layer is set to satisfy n3<n1with respect to a refractive index n1of the first and second light transmitting spacer layers. Thus, an effect of crosstalk light during reproduction can be reduced.

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