| 摘要 |
PURPOSE:To change the direction of beam light freely without changing the direction of a light source itself by arranging the light source which is fixed at a specific position and emits the beam light in a specific direction and a reflecting device which reflects the light beam at right angles to the optical axis and rotates freely around the optical axis. CONSTITUTION:Laser light projected from a laser oscillator 2 fixed on a frame 3 in an optical-axis (perpendicular) direction is deflected in a horizontal axis direction X by a mirror 4 which is supported pivotally together with a chassis 1 by a motor MZ. This light beam becomes beam light spreading in a sectorial shape horizontally by an optical scanner (OS)5 supported pivotally around a perpendicular tracing axis T by a tracing motor MT. The OS5 is supported pivotally around the horizontal axis X by a motor MX in addition to the motor MT to oscillate the whole sectorial light beam upward and downward. |
