Information recording medium

Information recording medium

  • CN 1,321,971 A
  • Filed: 02/14/2001
  • Published: 11/14/2001
  • Est. Priority Date: 02/14/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. an information recording carrier (1), thereon with optical means record and information reproduction, and with push away-pulling method carries out the servocontrol with respect to information recording carrier, it is characterized in that this information recording carrier comprises:

  • Record (DA) with grooved tracks (2), it is swing and forms continuously, and information thereon utilizes a kind of wavelength to be not less than 630nm (millimicron) and the light beam (B) that the is not more than 680nm method by the change phase place writes down and reproduce;

    WithA specific reproduction zone (RA), wherein a large amount of phase pit (PI) swingingly is pre-formed, and each has the degree of depth that is not less than 60nm and is not more than 90nm, and only can reproduce a kind of information with light beam therein.

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