Optical pickup apparatus and tilt amount detecting method

Details Optical pickup apparatus and tilt amount detecting method Optical pickup apparatus and tilt amount detecting method

2005-03-08

2005-03-08

Tran, Thang V. (Department: 2653)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053190

Reexamination Certificate

active

06865144

ABSTRACT:
An optical pickup apparatus includes a photodetector for receiving a diffracted light reflected from the recording medium; and a tilt detector for detecting a tilt amount of the recording medium on the basis of a light intensity within an interference region of a 0th-order diffraction light and at least one diffraction light other than the 0th-order diffraction light of the reflected light received by the photodetector.

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