The Mohs hardness of sapphire is 9, second only to diamond, and it has excellent wear resistance and scratch resistanceEffectively resist external forces and extend the service life of HUD system; Secondly, sapphire materialAble to maintain surface smoothness in harsh usage environments, ensuring clear display of HUD images.

Sapphire has good transparency in the visible light range, allowing sufficient light to pass through, thereby improving the brightness and contrast of HUD systems,Make the image clearer and more vivid,Enable drivers to clearly see displayed information under various lighting conditions.

During operation, the interior of a car generates high temperatures. Sapphire has excellent high-temperature resistance and can maintain stable physical and chemical properties in high-temperature environments, ensuring the normal operation of the HUD system.

Sapphire has good chemical stability, is not easily corroded by chemical substances, and can maintain a long service life in complex environments inside cars.