| 摘要 |
PURPOSE:To surely compensate an irradiating position even if an attitude changes by rotating a reflecting optical element so as to compensate a light emitting direction at the time of compensating the light emitting direction of a transmission optical beam and compensating the irradiating position of the transmission optical beam. CONSTITUTION:A half mirror 46 is fixed in a subscribed holder 50, the holder 50 is pivoted by a frame 52 and, then, the half mirror 46 is pivoted at the near position of a centroid so as to be rotatable. An angle sensor 54 is fixed at one end of the rotation shaft of the holder 50 so that the inclination of the half mirror 46 is detected, an actuator 56 is fixed at the other end, the actuator 56 is driven and the inclination of the half mirror 46 is made to be variable. Thus, the actuator 56 is driven based on the output signal of a position detecting element and the irradiating position of the transmission optical beam is adjusted in the vertical direction in an optical space transmitter device. |
