Patent ID: 7885164
Filing Date: 2011-02-08
Classification: G03H,G11B

Abstract:
1. An optical information recording method for recording information recorded in a first optical information recording medium onto a second optical information recording medium, said information of said first optical recording medium being recorded by interference pattern generated between virtual information light and virtual recording-specific reference light in irradiation regions by irradiating said virtual information light composed of information light to which information is added by performing spatial modulation and of a recording-specific reference light, and said virtual recording-specific reference light onto said first optical information recording medium having an information recording layer to which information is recorded using holography, comprising the steps of: irradiating virtual reproduction-specific reference light under same condition as that of said virtual recording-specific reference light onto said first optical recording medium; irradiating said virtual information light generated from said information recording layer by irradiation of said virtual reproduction-specific reference light onto said second optical information recording medium; and recording interference pattern generated between information light and the recording-specific reference light of said virtual information light in an information recording layer of said second optical information recording medium; and wherein said virtual information light generated from said information recording layer of said first optical information recording medium is irradiated onto said second optical information recording medium with a first lens having a first focal length and a second lens having a second focal length being interposed therebetween.