Clear-sighted Sapphire Window As Fingerprint Recognition

Product Description

Sapphire windows with diameters from several millimeters to several hundreds of millimeters are applied in various devices that work on the ground, under water, and in outer space in a wide range of pressures and temperatures – from cryogenic to high temperatures. An example design of a sealed-in window is presented in Fig. 1.31 . It is meant for use at temperatures starting from cryogenic and up to 720 К, with high pressures both internal and external.

Sapphire could be used as windows: 1.mobile phone screens; 2. lens; 3. fingerprint recognition; 4. Wearable equipment windows and so on, because of  its unique advantages including: high sensitivity, scratch resistance, abrasion resistance, high temperature resistance, high pressure resistance, good chemical stability, and corrosion and deliquescence resistance.