Product Description:
Sapphire Glass Window
Sapphire windows are ideal for vacuum chambers, submarine and other harsh environment applications. We provide sapphire windows and sapphire lenses according to customer's specifications.
*Sapphire windows (including Rectangular sapphire windows)
*Sapphire optical lenses
*Sapphire blanks: random or C/A/M/R orientation
Sapphire window feature:
*Extreme Surface Hardness Chemical Resistance
*Transmits Wavelengths Ranging From UV to Mid-Infrared
*Thinner and Stronger than Standard Glass Windows
Sapphire is used for windows in 250-5000nm wavelength range. It is recognized as a highly important optical material because optical grade sapphire combines high transmission with outstanding mechanical-strength properties at high temperatures. Sapphire windows can be made thinner than alternative crystals thanks to its structural integrity and can operate up to 2030ºC.
Sapphire windows are widely used as protective windows or viewports. Sapphire windows are ideal for applications where high pressure, vacuum, or corrosive atmospheres are a consideration.
Sapphire optical properties, chemical, mechanical properties:
| Transmission Range |
0.17 to 5.5 μm |
| Refractive Index |
No 1.75449; Ne 1.74663 at 1.06 μm (1) |
| Reflection Loss |
14% at 1.06 μm |
| Absorption Coefficient |
0.3 x 10-3 cm-1 at 2.4 μm (2) |
| Reststrahlen Peak |
13.5 μm |
| dn/dT |
13.1 x 10-6 at 0.546 μm (3) |
| dn/dμ = 0 |
1.5 μm |
| Density |
3.97 g/cc |
| Melting Point |
2040°C |
| Thermal Conductivity |
27.21 W m-1 K-1 at 300K |
| Thermal Expansion |
5.6 (para) & 5.0 (perp) x 10-6/K * |
| Hardness |
Knoop 2000 with 2000g indenter |
| Specific Heat Capacity |
763 J Kg-1 K-1 at 293K (4) |
| Dielectric Constant |
11.5 (para) 9.4 (perp) at 1MHz |
| Youngs Modulus (E) |
335 GPa |
| Shear Modulus (G) |
148.1 GPa |
| Bulk Modulus (K) |
240 GPa |
| Elastic Coefficients |
C11=496 C12=164 C13=115 C33=498 C44=148 |
| Apparent Elastic Limit |
77.86300 MPa (45,000 psi) |
| Poisson Ratio |
0.25 |
| Solubility |
98 x 10-6 g/100g water |
| Molecular Weight |
101.96 |
| Class/Structure |
Trigonal (hex), R3c |
Company advantage:
1. Delivery on time.
2. Considerable after-sale service.
3. OEM Service/Customer design is welcome.
4. Sample time is approximately 10 days.
5. Size and thickness can be changed as your requirement. It's flexible.
6. Pass the international certificate:CE, EN12150, ISO9001,GB, SGS.(quality guarantee)
Product picture:
More product cover glass available:
Edge and Chamfering Process:
Packaging:
Each glass use double sided protective film and then packed by craft paper then into a wooden crate.
Our company:
Saida Glass Co.,Ltd is specialized in the manufacture and export of glass deep-processing for 10 years.
We have total three factories, one is located in Dongguan city, one is in Heyuan city and our new factory (as below picture showing) is in Henan province which can produce cover glass 10000pcs per day.
Our advantage products are cover glass for touch screen, industrial touch devices, smart equipment, home appliance etc, and glass panel for lighting, touch switch panel, and AR/AG/AF coating glass.
Other glass products as sapphire glass, ceramic glass, borosilicate glass, fused silica quartz glass, ITO/FTO glass etc.
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