Box Type Al2O3 Optical Lens AR Coating Watch Crystal

The magnificent and holy Sapphire, in all its celestial hues, is a stone of wisdom and royalty, of prophecy and Divine favor. It is forever associated with sacred things and considered the gem of gems, a jewel steeped in the history and lore of nearly every religion. To the ancient and medieval world, Sapphire of heavenly blue signified the height of celestial hope and faith, and was believed to bring protection, good fortune and spiritual insight. It was a symbol of power and strength, but also of kindness and wise judgment.

1. Thinner and Stronger than Standard Glass Windows

Sapphire windows can withstand considerably higher temperatures than most optical windows with zero degradation.

4. Sapphire Windows will not get dark and lose their brilliancy when exposed to UV light.

5. Sapphire windows are extremely stable and resistant to attack by strong acid due to sapphire’s high dielectric constant.