Flat Grooving Blue Ar Coating Watch Glass Sapphire Crystal Optical Lens
Flat Grooving Blue ar coating Watch Glass Sapphire Crystal Optical Lens
Why Choose sapphire crystal?
Advantages of sapphire glass:
1. Synthetic Sapphire, the single crystal form of Al2O3, is one of the hardest materials ( 9 Mohs hardness). Because of its structural strength, the sapphire window can be made much thinner than other common optical windows, with better transmittance performance.
2. High thermal stability and excellent thermal conductivity make the sapphire window suitable for the applications in high power. The loss in a sapphire window is less than in another common optical window.
3. Sapphire windows can withstand considerably higher temperatures than most optical windows with zero degradation.
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Chemical composition
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Al2O3
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Density
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3.98g
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bending strength
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320-930Pa
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Vickrs hardness
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1800-2200
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optical transmission
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>90%
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melting point
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2050℃
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Mohs hardness
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9(Next only to diamonds:10)
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Bevel
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0.1-0.5mm
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Coating
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upon customer request
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Material
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Sapphire
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Shape
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Round, square, rectangle; flat, dome, curve, bridge ,pot Cover shape, etc.
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Size
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Customized according to customers requirement
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