| 摘要 |
<p>Provided is an optical pickup device which comprises a shared object lens capable of recording/reproducing information for any of a BD, DVD and CD while also being inexpensive, and which makes it possible to reduce the time required for recording/reproducing information, and also provided is an optical information recording/reproduction device. The initial position of a coupling lens when information is recorded/reproduced on a DVD and CD is fixed and used as a shared initial position, and as a result it is possible to perform recording/reproduction on an optical disk without moving the coupling lens, and it is possible to effectively reduce the time required for recording/reproduction.</p> |
