| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a two-dimensional optical scanning device capable of immediately controlling amplitude in two directions of main scanning direction and sub-scanning direction so as to fall within a target range respectively. <P>SOLUTION: A two-dimensional optical scanning device comprises a signal generation unit 50 that resonates a first movable part 4 and a second movable part 6 by vibrating a third movable part 12 upon outputting a driving signal V to a drive part according to a main scanning driving signal for resonating the first movable part 4 and a sub-scanning driving signal for resonating the second movable part 6. The device also comprises a control unit 66 for adjusting the driving signal V and controlling amplitude based on a first control parameter that largely contributes to an amplitude change in the first movable part 4 but little contributes to an amplitude change in the second movable part 6 and on a second control parameter that largely contributes to the amplitude change in the second movable part 6 but little contributes to the amplitude change in the first movable part 4, among control parameters of the main scanning driving signal and the sub-scanning driving signal. The control unit 66 adjusts both control parameters based on detected amplitude of the first movable part 4 and the second movable part 6. <P>COPYRIGHT: (C)2012,JPO&INPIT |
