China Gold Supplier for Cnc High Precision Quartz Glass - Sapphire Optical Windows – LZY

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China Gold Supplier for Cnc High Precision Quartz Glass - Sapphire Optical Windows – LZY Detail:

Uncoated sapphire has excellent surface hardness, and the range of transmittance extends from ultraviolet to mid-infrared wavelength region. Sapphire can only be scratched by a few substances other than it. The uncoated substrate is chemically inert and insoluble in water, common acids or alkalis at temperatures up to about 1000°C. Our sapphire window is a z-axis section, so the c-axis of the crystal is parallel to the optical axis, eliminating the birefringence effect of transmitted light.

Specification

Dimension Tolerance: 0.0/-0.1mm
Thickness Tolerance: ±0.1mm
Clear Aperture: ≥90%
Surface Quality: 40/20(Dimension≤50.8mm) 60/40(Dimension>50.8mm)
Flatness: λ/4@633nm
Parallelism: ≤1′
Chamfer: 0.2×45°

Sapphire Protective Windows

Shape Forming Method

CNC or laser

Product Characteristics

Product Characteristics

Material Properties

Sapphire is a single crystal aluminum oxide (Al2O3). It is one of the hardest materials. Sapphire has good transmission characteristics over the visible, and near IR spectrum. It exhibits high mechanical strength, chemical resistance, thermal conductivity and thermal stability. It is often used as window materials in specific field such as space technology where scratch or high temperature resistance is required.

Molecular Formula Al2O3
Density 3.95-4.1 g/cm3
Crystal Structure Hexagonal Lattice
Crystal Structure a =4.758Å , c =12.991Å
Number of molecules in unit cell 2
Mohs Hardness 9
Melting point 2050 ℃
Boiling Point 3500 ℃
Thermal Expansion 5.8×10-6 /K
Specific Heat 0.418 W.s/g/k
Thermal Conductivity 25.12 W/m/k (@ 100℃)
Refractive Index no =1.768 ne =1.760
dn/dt 13×10 -6 /K(@633nm)
Transmittance T≈80% (0.3~5μm)
Dielectric Constant 11.5(∥c), 9.3(⊥c)

Transmission Curve of Sapphire Optical Window

Transmission Curve of Sapphire Optical Window


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China Gold Supplier for Cnc High Precision Quartz Glass - Sapphire Optical Windows – LZY detail pictures

China Gold Supplier for Cnc High Precision Quartz Glass - Sapphire Optical Windows – LZY detail pictures

China Gold Supplier for Cnc High Precision Quartz Glass - Sapphire Optical Windows – LZY detail pictures


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"Control the standard by the details, show the power by quality". Our organization has strived to establish a highly efficient and stable employees team and explored an effective high-quality command method for China Gold Supplier for Cnc High Precision Quartz Glass - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Somalia, Uganda, Colombia, Our product quality is one of the major concerns and has been produced to meet the customer's standards. "Customer services and relationship" is another important area which we understand good communication and relationships with our customers is the most significant power to run it as a long term business.
  • The company's products very well, we have purchased and cooperated many times, fair price and assured quality, in short, this is a trustworthy company!
    5 Stars By Agnes from Mongolia - 2017.11.01 17:04
    Cooperate with you every time is very successful, very happy. Hope that we can have more cooperation!
    5 Stars By Deirdre from Pretoria - 2017.09.09 10:18
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