| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk drive compatible for three media of BD, DVD and CD, and a technique for allowing the common use of one optical-head front monitor to be mounted on the optical disk drive. <P>SOLUTION: The optical head includes a first laser light source for outputting a first light beam, a second laser light source for outputting a second light beam, and the front monitor for receiving both the first light beam and the second light beam travelling from the opposite direction of the first light beam. <P>COPYRIGHT: (C)2011,JPO&INPIT |
