| 摘要 |
<p>The device (1) has a longitudinal axis, which defines an optical axis (A) and light-sensitive sensor devices (3,3'). The tracking device is provided with the light utilization unit as a movable unit. The sensor unit has three sensors (5,5') arranged in circumferential direction around the optical axis. The outgoing signals are evaluated by an evaluation unit of the sensors. An independent claim is included for a light utilization unit with an energy conversion area.</p> |
