Violet tungsten oxide nano powder may be used for preparing energy saving glass coating, which may shield infrared light and ultraviolet light, and pass visible light. In other words, the obtained building glass heat-insulating coating can shield most of the heat in sunlight with high UV resistance. And the transparent coating will not affect indoor lighting with the advantages of energy conservation and environmental protection.
More details, please visit:
http://www.tungsten-powder.com/tungsten-oxide.html
So, what is infrared light? What is ultraviolet light? What is visible light? They are related to the knowledge of solar spectroscopy.
Infrared light: Wavelength is between 780nm and 2500nm. The "invisible" heat of the sun that we can directly feel. It contains the most energy, so the heat is also high.
Ultraviolet light: Wavelength is between 280nm and 380nm. With strong penetrability, it can make human skin melanin deposition. And excessive UV exposure can lead to skin cancer or fading of carpet, curtains, fabrics and furniture paint.
Visible light: Wavelength is between 380nm and 780nm. It is the only spectrum visible to the naked eye. The visible light band can be further divided into different colors without direct damage to the human body.
