What are Sapphire Glass Grades?

Sapphire glass grades typically refer to the quality or characteristics of synthetic sapphire crystals used for specific applications. The grades can vary depending on factors such as crystal size, clarity, surface quality, and optical properties. Here are some common sapphire glass grades:

Optical Grade Of Sapphire Glass

This grade of sapphire glass is used in applications that require high optical clarity and minimal distortion, such as camera lenses, optical windows, and high-end watch crystals. Optical grade sapphire glass is carefully selected for its high purity, low inclusions, and excellent transparency in the visible, ultraviolet, and infrared spectra.

Mechanical Grade Of Sapphire Glass

Sapphire glass with mechanical grade is used in applications that require high strength, durability, and resistance to wear and abrasions, such as protective covers for high-end watches, ruggedized displays, and transparent armor. Mechanical grade sapphire glass is often thicker and may have slightly lower optical clarity compared to optical grade, but it is designed to withstand harsh environments and mechanical stresses.

Consumer Grade Of Sapphire Glass

This grade of sapphire glass is used in more affordable consumer electronic devices, such as smartphones, smartwatches, and camera lenses, where a balance between performance and cost is important. Consumer-grade sapphire glass may have slightly lower optical properties and surface quality compared to optical or mechanical grades, but it still offers good scratch resistance and durability compared to other common glass materials.