Window company sees future clearly, shhhhhh
![zd-defaultauthor-harry-fuller.jpg](https://www.zdnet.com/a/img/resize/7141b714f78c8c276dba8bf35ac047b97e9d354e/2014/12/04/ee3bf37f-7b67-11e4-9a74-d4ae52e95e57/zd-defaultauthor-harry-fuller.jpg?auto=webp&fit=crop&frame=1&height=192&width=192)
Soladigm not only has a clear vision of its future, but it's keeping it a secret. It believes in transparency, of a sort. It's very much in the window business. Literal, physical windows. The 2-year old California start-up just got another round of funding from Vinod Khosla and Sigma Partners.
Soladigm is working on switchable windows, letting solar light and heat into a building on cold days. Blocking it out on hot days. This would be a step forward for passive solar design and construction, already a popular trend in sun-blessed parts of the U.S.
Nothing on their perfunctory website about WHEN they'll bring a product to market. One website describes Soladigm as being in "stealth mode." Under Google news you get one link, one. Hell, you or I would score much higher than that.