Controlled transparency
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Dec 19, 1989
Grant Date -
N/A
app pub date -
Dec 21, 1987
filing date -
Dec 20, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Pane or foil with controllable transparency and light transmission comprises a layer configuration between two transparent carriers such as glass panes, foils or the like; transparent electrodes are disposed on the carriers; a tansparent electrolyte and an active polymer layer are disposed between the electrodes; the active polymer layer has light absorption in the visible spectrum range characterized by a variation in the case of a reversible chemical doping reaction; preferably an additional transparent layer is included to serve as reversible source for storage and yielding of ions, the additional layer is juxtaposed to the electrolyte.
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