| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical scanner restraining the vibration of a reflection member without making a vibration restraining member intervene in the scanning area of the reflection member. SOLUTION: In this optical scanner 10, the end face of a reflection mirror 20 at the end in a beam scanning direction is made to abut on a regulating member 38. Therefore, the movement of the end face is regulated at flexural oscillation of the mirror 20, and the mirror 20 is not vibrated from the supporting position of a supporting member 28 for the mirror 20 to the end face (the abutting surface of the member 38). As a result, the flexural oscillation of the mirror 20 is restrained. Namely, the vibration is restrained with simple constitution without making the vibration restraining member intervene in a beam scanning area.
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