| 摘要 |
<P>PROBLEM TO BE SOLVED: To change a center wavelength and a wavelength bandwidth of laser emission light. <P>SOLUTION: A laser light emission device 2 comprises a laser generation unit 10 which generates laser light, a pair of optical filters 31A, 31B arranged side by side on the optical path of generated laser light L1 and has such characteristics that a center wavelength of the transmitted laser light is shifted according to the incident angle of the laser light, a displacement mechanism 32 which displaces at least one of the pair of optical filters around an axis Z in a predetermined direction intersecting the optical path, and a laser emitting unit 13 from which the laser light transmitted through the pair of optical filters is emitted outside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
