Sapphire windows with hole 

With their superior technical and chemical properties, sapphire windows can be found in applications across the whole optical sector as well as in the field of measurement and analytical instrumentation.   These applications can include: laboratory work in microscopy industrial applications in hazardous environments runway light covers for airfields For applications requiring a wide transmission range, scratch resistance, temperature stability and resistance against pressure and aggressive chemicals, sapphire is an excellent choice of material. Specifications: Material : Sapphire AI2O3 Diameter : 2-300mm Dimension Tolerance :+0.0/-0.02mm Surface Quality :80/50 , 60/40 , 40/20 , 20/10  Orientation of Axis : According to customer requirements Bevel : Protective bevel as needed Realpoo Optics is a professional manufacturer of optical glass lenses, such as Spherical Lens, Glass Rod, Fresnel…