| 摘要 |
<p>The invention relates to a tracking device (10) for a light beam between a transmitter and a receiver with line of sight between them, which is provided with an optical tracking unit, which defines an optical axis (12), and an optical deflection element (16) arranged therein, which optical deflection element, for the purpose of altering the angle of elevation at which the light beam is incident or emerges, is tiltable about a tilting axis (28) running perpendicularly to the optical axis (12), and which optical deflection element, for the purpose of altering the azimuth angle at which the light beam is incident or emerges, is rotatable about a rotation axis (30) parallel to the optical axis (12). Furthermore, the tracking device has an optical deflection element (16) having a reflective component (18), which has a reflection surface (24), and a transmissive component (20). Furthermore, the optical deflection element (16) is operable for the purpose of changing the angle of elevation by tilting about the tilting axis (28) within a first tilting angle range in a first mode, in which the light beam is deflectable by passing through the transmissive component (20) of the optical deflection element (16), and within a second tilting angle range in a second mode, in which the light beam is deflectable by reflection at the reflective component (18) of the optical deflection element (16).</p> |
