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Optical information processing apparatus and method of processing optical information

  • US 20030107961A1
  • Filed: 11/06/2002
  • Published: 06/12/2003
  • Est. Priority Date: 12/07/2001
  • Status: Active Grant
First Claim
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1. An optical information processing apparatus comprising:

  • an optical head for irradiating an optical information recording medium with light, converting the light into a head signal after the light is reflected by the optical information recording medium, and outputting the head signal, a signal quality index detector for detecting a signal quality index representing quality of the head signal on the basis of the head signal outputted from the optical head, and a two-dimensional probe for varying a focal position and a spherical aberration of the light radiated onto the optical information recording medium so as to search for a focal position and a spherical aberration that optimize the signal quality index detected by the signal quality index detector.

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