| 摘要 |
<p>The invention relates to a thermopan-type carpentry system, provided with some shutters made of polarizing materials, meant to be used in constructions, in order to provide natural lighting of a room. According to the invention, the system comprises a motor (M), tightly placed inside a frame (1), which is actuated by means of a gearwheel (3) and a toothed belt (4), applied at the bottom of a sheet (f2), and determines the left-right displacement of an intermediary sheet (f2) on a pre-established distance (x), so that, in the limit positions, there is obtained the light obturation or non-obturation, as some appropriate polarizing foils (p1 and p2) are superposed or not.</p> |
