A silver-coated mirror is an optical reflector made by depositing a silver film on the surface of glass or other substrates through methods such as vacuum coating or chemical reactions. It is typically coated with a protective layer (such as a SiO? film) on the silver film surface, offering high reflectivity and excellent optical performance.

• High Reflectivity: It exhibits high reflectivity from the visible to infrared spectrum. For example, the average reflectivity Ravg can reach over 97.5% in the 450-2000 nm range, and 96% in the 2-20 μm wavelength range, making it one of the highest reflectivity metal mirrors available. Compared to aluminum-coated mirrors, it achieves higher reflectivity in the visible to infrared spectrum.
• Broad Spectral Range Applicability: It provides excellent reflectivity across a wide spectral range, from visible light to infrared.
• Minimal Impact from Incident Angle: Unlike dielectric films, its reflectivity is less affected by the incident angle, making it suitable for various angles of incidence.
• Protective Coating Enhances Durability: A protective layer (such as SiO?) coated on the silver film prevents oxidation, ensuring a long service life. It is also less prone to scratches when wiped with cloth or similar materials.