Chinese wholesale Fused Quartz Discs - Sapphire Optical Windows – LZY

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Our items are commonly identified and trusted by people and can fulfill repeatedly altering economic and social wants of Quartz Microplates, Precision Glass Ball Lens, Quartz Sheet Price, Our company eagerly looks forward to establishing long-term and friendly business partner relationships with clients and businessmen from all over the world.
Chinese wholesale Fused Quartz Discs - 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


Product detail pictures:

Chinese wholesale Fused Quartz Discs - Sapphire Optical Windows – LZY detail pictures

Chinese wholesale Fused Quartz Discs - Sapphire Optical Windows – LZY detail pictures

Chinese wholesale Fused Quartz Discs - Sapphire Optical Windows – LZY detail pictures


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We not only will try our best to offer excellent services to every customer, but also are ready to receive any suggestion offered by our customers for Chinese wholesale Fused Quartz Discs - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Sevilla, India, Turkey, Now, with the development of internet, and the trend of internationalization, we have decided to extend business to overseas market. With the propose of bringing more profits to oversea customers by providing directly abroad. So we have changed our mind, from home to abroad, hope to give our customers more profit, and looking forward to more chance to make business.
  • The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
    5 Stars By Honey from Boston - 2017.04.28 15:45
    Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
    5 Stars By Marian from USA - 2018.07.12 12:19
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