| 摘要 |
An optical scanning method is provided by which images of excellent quality can be obtained independent of the size of the scanning region. The emission end of an optical fiber is displaced in a two-dimensional direction by means of an optical scanning actuator having a first drive unit and a second drive unit which drive the emission end in different directions, and when scanning the beam emitted from the optical fiber, a drive control unit controls a first drive signal supplied to the first drive unit and a second drive signal supplied to the second drive unit to scan a non-circular scanning region by rotating the optical scanning trajectory while scanning back and forth repeatedly in an approximately parallel manner and changing the length of said scan trajectory in accordance with the rotation angle of the scan trajectory. |
