| US 7,542,191 B2 | ||
| Optical scanning device, printing apparatus, and method for adjusting oscillation amplitude of oscillating mirror | ||
| Seijiro Kadowaki, Nagoya (Japan) | ||
| Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken (Japan) | ||
| Filed on Apr. 25, 2008, as Appl. No. 12/109,763. | ||
| Claims priority of application No. 2007-117022 (JP), filed on Apr. 26, 2007. | ||
| Prior Publication US 2008/0273230 A1, Nov. 06, 2008 | ||
| Int. Cl. G02B 26/08 (2006.01) | ||
| U.S. Cl. 359—214 | 9 Claims |
| 1. An optical scanning device comprising:
an oscillating mirror which has a pair of electrodes and a mirror oscillator, and which deflects a light beam;
a driving unit which applies a wave-like driving signal to the pair of electrodes so as to oscillate the mirror oscillator
by an electrostatic force corresponding to the driving signal; and
an adjusting unit which changes a duty ratio of the driving signal to adjust an oscillation amplitude of the oscillating mirror.
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