Device for optical scanning of surfaces or objects for use as remote sensing system for gas, particularly for hydrocarbons, has light source and optical element rotated around rotational axis by first output for deflecting light rays

摘要

The device has a light source and optical element (5) rotated around a rotational axis (19a,19b) by a first output (11) for deflecting light rays (2,12). The optical element has a first light-transmissive optical wedge plate (6) and a second light-transmissive optical wedge plate (7), where each wedge plate has an entry surface (8,8') and an exit surface (9,9') for the light rays.