| abstract |
A control variable transparency panel has an insulation panel with a standard metal distancer profile (4) filled with a moist absorption substance (3) and is connected with classic transparency panels (G1, G2) with a primary connecting sealing substance (2) and secondary connecting sealing substance (1). The photochromic panels (P, P1) are connected with the classic transparency panels (G1, G2) by layers of glue (L) and transparent plastic films (R1, R2) acting as an absorber of natural sunlight UV radiation. The impact of the natural sunlight UV radiation on the photochromic panels (P, P1) has been eliminated, the photochromic effect in the photochromic panels (P, P1) is activated by means of electrical UV radiation sources (UV-1,..., UV-n) that may be in the form of light emitting diodes or laser diodes or other electrical UV radiation sources emitting UV radiation of the required wavelength. The electrical UV radiation sources (UV-1,..., UV-n) are connected with an electrical power source (CPS) over a contact panel (6) and electrodes (X, Y). A contact (C) has the purpose of providing a better cooling process. The contact panel (6) is connected with the metal distancer profile (4) by means of electrical isolators (5). A non - transparent surface (7) is applied to hide electrical sources of the UV radiation. |