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Smart glass, also known as switchable glass, dynamic glass, and smart-tinting glass, is a type of glass that can change its optical properties, becoming opaque or tinted, in response to electrical or thermal signals.
Electrochromic glass installed in buildings. Several electrochromic devices have been developed. Electrochromism is commonly used in the production of electrochromic windows or "smart glass", [3] [1] and more recently electrochromic displays on paper substrate as anti-counterfeiting systems integrated into packaging. [27]
Molten glass is poured over a surface of molten tin, where it flattens out and can be drawn off in a ribbon. The advantage of this process is that it is scalable to any size and produces high quality panes without any further polishing or grinding. Float glass has continued to be the most used type of glazing to the present day. [6]
A typical installation of insulated glass windows with uPVC frames. Possibly the earliest use of double glazing was in Siberia, where it was observed by Henry Seebohm in 1877 as an established necessity in the Yeniseysk area where the bitterly cold winter temperatures regularly fall below -50 °C, indicating how the concept may have started: [2]
In New England some houses built more than 300 years ago have window glass which is lightly tinted violet because of this chemical change, and such glass panes are prized as antiques. This process is widely confused with the formation of "desert amethyst glass", in which glass exposed to desert sunshine with a high ultraviolet component ...
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