| 摘要 |
An imaging device comprises a quartz crystal plate including a quartz crystal of crystal structure having a first axis and a second axis vertical to the first axis, said quartz crystal plate being provided as facing to an image pickup element taking an image from an optical system, and a vibration member provided on a surface of said quartz crystal plate crossing an optical axis of said optical system so as to vibrate said quartz crystal plate, wherein; an angle of the face of said quartz crystal plate crossing the optical axis of said optical system is substantially +45° rotated counter-clockwise around said second axis from said first axis viewing from said second axis.
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