| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact object lens unit having lens elements set close to each other without spoiling their performances. <P>SOLUTION: The first objective lens 20 having a first rectangular flange 23 and the second objective lens 30 having a second rectangular flange 33 are set close to each other. Thus, the lens moving section 10 can be made small in the arrangement direction to increase the response speed. Especially, since the main lens section 21 of the first objective lens 20 and the main lens section 31 of the second objective lens 30 can move close to each other without spoiling their optical performances, the first objective lens 20 and the second objective lens 30 can be used in a state that they are set close to each other. <P>COPYRIGHT: (C)2008,JPO&INPIT |
