| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical pickup device for recording and reproducing of a plurality of optical information recording media, which simplifies the assembly of the device and improves working efficiency thereof and is strong to a temperature change and change with time, and its light source unit. <P>SOLUTION: The optical pickup device comprises a unit 60 including a first light source 11 for performing recording/reproducing of a first optical information recording media, a second light source 12 for performing recording/reproducing of a second optical information recording media, and a detecting means 50 for receiving and detecting luminous flux reflected from an information recording surface. <P>COPYRIGHT: (C)2007,JPO&INPIT |
