Multi-stack optical storage medium

Multi-stack optical storage medium

  • CN 1,795,500 A
  • Filed: 05/17/2004
  • Published: 06/28/2006
  • Est. Priority Date: 05/28/2003
  • Status: Active Grant
First Claim
Patent Images

1. an optical storage medium comprises a top recording stack (ST under its plane of incidence (EF) 0) and at least one below recording stack (ST 1), this top recording stack (ST 0) comprise that a thickness is d RAnd refractive index is n RTop recording layer (L 0), described below recording stack (ST 1) pass the radiation beam with a wavelength (λ

  • ) (4) transmission that this plane of incidence (EF) enters this optical storage medium by one and cross this top recording stack (ST 0) and focus on described below recording stack (ST 1) be recorded or read back described top recording layer (L 0) in record cause at the described first recording layer (L 0) the recording areas and the changes delta (n of the optical thickness between the recording areas not RD R) in scope [0.03 λ

    , 0.125 λ

    ].

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