| 摘要 |
PROBLEM TO BE SOLVED: To provide a polarization adjusting device which does not require a mechanism for making optical element rotate. SOLUTION: A first optical system for separating an input light into two optical paths and then combining both of them is provided. The first optical system includes a half-wave plate, inserted to only one of the two optical paths in the first optical system and an adjustment part for adjusting an optical path length difference between the two optical paths in the first optical system. COPYRIGHT: (C)2011,JPO&INPIT |
