OPTICAL PICKUP, OPTICAL INFORMATION REPRODUCING UNIT, AND OPTICAL INFORMATION REPRODUCING METHOD

摘要

PROBLEM TO BE SOLVED: To provide: an optical pickup which can improve quality of a reproduced signal; optical information reproducing unit; and optical information reproducing method.

SOLUTION: An information light beam LM as first light radiated from a laser diode 41 as a light source is condensed by an objective lens 35 and radiated on an optical information recording medium 100 having a uniform recording layer 101. Then, the optical information recording/reproducing unit 20 radiates the information light beam LM to a track TR formed with recorded marks RM for shutting off the information light beam LM and receives a transmitted light beam LMo as a transmitted light which transmits the track TR.

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