Details of sapphire window smart watch lens:

Sapphire window film is also very common in life. Why do you say so? In addition to the smart watch lens industry, it has its shadow in some fields such as mobile phone panels, fingerprint lock protection films and fingerprint lock display panels. It can be seen that its use is widely popular. The reason why it is very popular in the smart watch lens industry is due to its high strength and high hardness. Other features are secondary. After all, who doesn't want high quality and not easy to damage, Even if the sapphire is not coated, it has excellent surface high hardness. It can't be rubbed, collided or scratched. If you deliberately damage it, there's no way, because no matter how high-quality materials can withstand manual damage; The transmittance range of this kind of window sheet can be extended from ultraviolet to mid infrared wavelength. Very few high hardness substances can scratch it. Moreover, the substrate of uncoated sapphire is also chemically inert. Even at 1000 ° C, it will not fuse with water, and common alkaline substances or acidic substances will not fuse, Even if some strong bases and acids are ignored, they can certainly be destroyed. Since most sapphire window sheets belong to the z-axis section, here, its c-axis side can be parallel to the optical axis, which avoids and eliminates the birefringence effect of transmitted light. At the same time, it is made into precision window sheets, which can still be used in some laser fields and industrial fields.