Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1994-08-26
1995-12-19
Ben, Loha
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369120, 369125, 430495, G11B 700
Patent
active
054775205
ABSTRACT:
A system and method for recording data on an optical recording medium. One system in accordance with the invention includes an optical source to generate a radiation beam at a first wavelength; and an optical recording medium to which the radiation beam is applied, wherein the medium has an absorption response with an absorption edge between a second and third wavelength, and the first wavelength is between the second and third wavelength, such that an amount of radiation absorbed by the medium varies as a function of wavelength for wavelengths near the first wavelength. The radiation beam induces a shift in the absorption response in a region of the medium illuminated by the beam such that the medium absorbs additional radiation at the first wavelength and the quality of a mark formed on the medium by the beam is thereby improved.
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Ben Loha
Eastman Kodak Company
Owens Raymond L.
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