| 摘要 |
Subject matter of this invention is in that the surface (3), where the energy of sunlight beam (10) is converted into heat, is located inside the thermoinsulated assembly of a collector frame (1) and a light deflector (2), and is in direct touch with the working fluid (14) which is heated up in the collector and thus the emittance of the obtained heat into the surrounding space is reduced to the least possible measure.
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