Factory Free sample Large Diameter Quartz Glass Tube - Sapphire Optical Windows – LZY

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Fast and fantastic quotations, informed advisers to help you choose the correct products that suits all your needs, a short manufacturing time, responsible good quality control and distinct companies for paying and shipping affairs for Fritted Glass Filters, Fused Silica Glass Plates, Cnc Machined Quartz Parts, As a key enterprise of this industry, our corporation makes attempts to become a leading supplier, depending on the faith of expert excellent & throughout the world assistance.

Factory Free sample Large Diameter Quartz Glass Tube - 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

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

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To create extra value for customers is our enterprise philosophy; buyer growing is our working chase for Factory Free sample Large Diameter Quartz Glass Tube - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Holland, Uruguay, Azerbaijan, We always insist on the management tenet of "Quality is first, Technology is basis, Honesty and Innovation".We are able to develop new products continuously to a higher level to satisfy different needs of customers.

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Customer service staff and sales man are very patience and they all good at English, product's arrival is also very timely, a good supplier.

By Afra from Uruguay - 2017.10.25 15:53

Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.

By Karen from Sierra Leone - 2018.06.05 13:10

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