High Quality for Quartz Coating Target - Sapphire Optical Windows – LZY

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High Quality for Quartz Coating Target - 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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High Quality for Quartz Coating Target - Sapphire Optical Windows – LZY detail pictures

High Quality for Quartz Coating Target - Sapphire Optical Windows – LZY detail pictures

High Quality for Quartz Coating Target - Sapphire Optical Windows – LZY detail pictures


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Sticking to your belief of "Creating solutions of high quality and generating buddies with people from all around the world", we always put the fascination of customers to start with for High Quality for Quartz Coating Target - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Eindhoven, Rotterdam, Canberra, Taking the core concept of "to be the Responsible". We'll redound up on society for high quality merchandise and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.
  • We always believe that the details decides the company's product quality, in this respect, the company conform our requirements and the goods are meet our expectations.
    5 Stars By Mamie from California - 2017.06.29 18:55
    This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
    5 Stars By Christopher Mabey from Peru - 2017.07.07 13:00
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