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Aluminum Coating
We overcoat the aluminum with a dielectric layer, then we get the protected aluminum coating. These coating, through the above process of technology, can't be oxidized easily. So it means that they have a formation protected against oxidation.
The coating is half a wavelength thick at 550nm or so, which effectively makes it absentee at that wavelength. They are mainly used as applications for reflector from 300nm at through the infrared.
 
Specifications
Reflectance >80% average
Wavelength 220nm - 10m
Angle of incidence 0 to 60 deg
 
 

 
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