| 摘要 |
The present invention relates to a device ( 1 ) for reflecting electromagnetic waves, particularly light and heat radiation to a regulable extent, wherein between two protective plates ( 3 ) substantially transparent for electromagnetic waves the device ( 1 ) comprises a sheet-like, flexible reflecting element ( 2 ) of similar width and of larger length as compared to the protective plates ( 3 ) for transmitting the electromagnetic waves to different extents and/or in different ways, the device ( 1 ) further comprises a driving means ( 4 ) for spanning the reflecting element ( 2 ) along the longitudinal directions of the protective plates ( 3 ) and moving it in the same direction. The protective plates ( 3 ) are connected to each other so as to enclose an airtight space and the reflecting element ( 2 ) is arranged between the protective plates ( 3 ) in the airtight space. The invention also relates to a method for the metallization of a film with a density varying with the longitudinal position on the film according to a given function. |
