Researchers in Switzerland have developed a special coating to prevent moisture condensation on lenses.
The scientists say in anew paperthat their approach could also be used on car windshields.
This is called a super hydrophilic surface.
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The problem is contamination.
As the water loves water, it also loves everything else, including dirt.
And just a little impurity on the surface renders it useless.
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This is why you always have to reapply those sprays; hence they are not durable."
The layer absorbs solar radiation selectively.
“The coating is heated by sunlight,” Haechler said.
But then you sacrifice transparency.
Our technology tries to offer both."
Due to their refractive properties, these two outer layers increase the efficacy of the heating effect.
The top layer of titanium oxide acts as a finish that protects the gold layer from wear.
This whole “sandwich” is just 10 nanometers thick.
The coating consists of a thin double-layered silicon dioxide-titanium dioxide film.
“I also sell a spray that temporarily makes glasses anti-fog for a day or so.
