| 摘要 |
An optical disc apparatus includes: a first signal generating portion which generates a first signal that is obtained by processing signal which is output from the photo detecting portion, and which shows a peak in case where a focus position of an objective lens is matched on a recording surface of an optical disc; a second signal generating portion which generates a second signal that is obtained by slicing the first signal at a prescribed level to be digitalized; and a movement stopping portion which stops moving of the objective lens if the second signal is asserted by existence of the recording surface that is a target to be reproduced or to be recorded, then it is negated, and the state to be negated is continued for a prescribed time interval when focus control is performed.
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