This startup company, RavenBrick, was profiled by the New York Times for its simple and smart window technology.  It's a window like nothing else on the market.  Using patented and patent pending technology, RavenWindow has a reflective film that's keyed to the outside temperature.  When warm, the film reflects light to reduce solar heat gain.  Conversely, when cool, the film becomes transparent to allow a comfortable amount of heat gain. 

In technical terms, RavenWindow has a solar heat gain coefficient of 0.03 when reflective and .35 or higher when transparent. 

RavenWindow can reduce a energy consumption by 30 to 40 percent, according to testing and models by the Lawrence Berkeley National Laboratory, says NY Times Green

The window does not require an electric current to activate — the film works automatically based on outside temperature — so there's a potential to save money on installation and ongoing energy costs as compared to other products on the market. 

Also, though the film works best when sandwiched between window panes, the technology could also be used in retrofit applications, according to Ceramic Tech Today.  

RavenBrick was selected for inclusion in the new Research Support Facility, a cutting-edge project for the Department of Energy seeking LEED Platinum certification.

[+] Learn more about RavenBrick Smart Windows.

Media credit: RavenBrick.