It is a product in which a metal film is vapor-deposited on the substrate surface.
While it has high reflectance in the entire visible light range, it also has strong properties in a wide band.
By using a metal thin film, a good mirror with the little polarization dependence and the incident angle dependence can be obtained with only a few layers, even if the adhesion to the substrate and environmental resistance are taken into consideration.
Types of vapor deposition films include aluminum (Al), gold (Au), silver (Ag), copper (Cu), titanium (Ti), etc., and can be applied not only to flat surfaces but also to three-dimensional objects.
In addition, the metal film is easily scratched and oxidized, so we process it with our own technology.
Even if the incident angle is 60 degrees or more, the reflectance does not easily decrease.