| 摘要 |
The present invention relates to an optical element (1) for solar panels. The optical element (1) comprises an absorber unit (2), the edges of which are raised to form an open-top box having a circumferential rim (3). A radiation transparent front cover (4) is connected to the absorber unit (2) at the rim (3) sealingly enclosing the box-shaped absorber unit (2).
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