| 主权项 |
1. An optical scanning device comprising:
a reflecting portion having a reflecting surface for reflecting light beam; a pair of outside beam members arranged on a first axis and connected to both longitudinal sides of the reflecting portion, the outside beam members being capable of twisting vibration, wherein the first axis passes through a center of the reflecting portion; a supporting body for supporting the reflecting portion via the pair of the outside beam members; and a first driving portion, a first end of which is connected to the supporting body and a second end of which is connected to a driving point of the reflecting portion, wherein the second end of the first driving portion is capable of being inflected so as to displace the driving point, so that the reflecting portion is oscillated in a twisting vibration manner at the first axis, and wherein the driving point is located at a position separated from the first axis. |
