Zweistufige Konzentratoranordnung mit mehreren Solarzellen

The invention relates to a two-stage tracked concentrator arrangement comprising several solar cells for concentrating solar radiation onto the solar cells, whereby the arrangement is tracked along a single polar axis and the half aperture angle <theta><-2 of the second concentrator (2) is about 20 to 30<degrees Celsius> below the first concentrator (1) and the first concentration is linear is linear and the second concentration is two-dimensional.