| 摘要 |
A scanning laser microscope (1) includes a laser light source (2a,2b); an acousto-optic deflector (3) having a crystal, being arranged in an optical path of a laser beam emitted from the laser light source (2a,2b) and capable of changing a traveling direction of the laser beam when frequencies of acoustic waves applied to the crystal are changed; a frequency control unit (17,18) configured to simultaneously apply acoustic waves having a plurality of frequencies to the crystal of the acousto-optic deflector (3); an objective lens (5) configured to converge the laser beam emitted from the laser light source (2a,2b) to form a beam spot on a specimen (A); and an optical scanning device (4) configured to two-dimensionally scan the scanning spot by deflecting the laser beam in two directions perpendicular to each other. The acousto-optic deflector (3), the optical scanning device (4), and a pupil (20) of the objective lens (5) are arranged at positions optically conjugate with each other.
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