5.5mm Round Domed Pot Cover Sapphire Crystal Watch Glass
Why Choose sapphire crystal?
Sapphire is a variety of Corundum, an aluminum oxide mineral that forms in prismatic tabular, bipyramidal or rhombohedral crystals, as well as granular or massive habits, and may be transparent to opaque. Blue is considered Sapphire’s “true” color and the one most often recognized, though Sapphire does form in a diversity of colors (listed below), and will have the color added to its name (for example: Green Sapphire, Yellow Sapphire). Additional mineral compounds forming with aluminum oxide are responsible for the different coloration, and in the case of Blue Sapphire, iron and titanium provide its heavenly hues. With the exception of Red Corundum, which is Ruby, all other colors of Corundum are Sapphires.
Because of its hardness (second only to Diamond), Sapphires are used in industrial applications such as components for watch crystals and movement bearings, scientific instruments, high-durability windows, and insulating substrates in special purpose solid state electronics
Our Sapphire Precision Windows are available in 1/2" and 1" diameters. The uncoated versions are designed for applications in the 150 nm - 4.5 μm range. AR-coated windows feature anti-reflective coatings designed for 1.65 µm - 3.0 µm (-D) or 2.0 µm - 5.0 µm (-E1) on both sides.
Q: Do you provide samples ? is it free or extra ?
A: Yes, but it's a precision product that requires extra cost and freight.
Q: How can I customize my products?
A: Attach your drawings with details (Surface treatment, material, quantity and special requirements etc).
Q: How did you test the product before they are packed?
A: We have strict QC procedure, each product will be tested by three times even more with professional machine before packing.
Q: What if the products we received are not good?
A: Contact us without hesitation, our special after-sales service will take the responsibility.
Q: What's the material of your products ?
A: Sapphire
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