LINE FOCUS HELIOSTAT AND OPERATING METHOD THEREOF

摘要

The invention relates to a line focus heliostat and to the operating method thereof. The line focus heliostat comprises a cylindrical or cylindrical-parabolic reflective surface (1) which can rotate around a primary axis (3) that is solidly connected to a mobile support (2) which, in turn, can rotate around a secondary axis (5) that is perpendicular to the primary axis (3). According to the invention, the secondary axis (5) is oriented in a particular manner such as to be perpendicular to a main image plane (10) which contains a fixed linear target (11) and the primary axis (3). The inventive structure and arrangement enable the line focus to be confined to the linear target (11), without the reflection of the light outside of the optical axis shifting same over the course of the day. The movements are obtained using a primary actuating means (4) and a secondary actuating means (6) which are controlled by a control device (8). In the specific case of a vertical linear target (11), the main image plane (10) is also vertical and, as a result, the secondary axis (5) is horizontal.