| 摘要 |
PURPOSE:To easily perform adjustment for the optical axis of a light beam emitted in a prescribed direction with simple configuration. CONSTITUTION:A lens barrel 2 provided with a driving circuit which sends out the driving signals of linear motors 32 and 35 based on an incidental position detecting means and its detection result in the inside is supported on a pedestal 31. A stator part 32A is fixed on the pedestal, and a supporting member 34 is fixed on a rotor part 32B. The supporting member is turned in a direction of arrowhead (a) or in the reverse direction centering the rotary shaft of the lens barrel intersecting orthogonally to an optical system and in the vertical direction. Also, a stator part 35A is fixed on the supporting member, and the lens barrel is fixed on a rotor part 35B. The lens barrel can be turned in the direction of arrowhead (b) or in the reverse direction centering the rotary shaft of the lens barrel intersecting orthogonally to the optical system and in the horizontal direction. |
