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

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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 Capillary Quartz Glass Tubes, Plano-Convex Lens, Synthetic Quartz Plates, With advantage of industry management, the company has always been committed to supporting customers to become the market leader in their respective industries.

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

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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We enjoy an extremely good status among our prospects for our great merchandise top quality, competitive price and the ideal service 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: Salt Lake City, Irish, Hamburg, We are proud to supply our products to every costumer all around the world with our flexible, fast efficient services and strictest quality control standard which has always approved and praised by customers.

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We are really happy to find such a manufacturer that ensuring product quality at the same time the price is very cheap.

By Cara from Gambia - 2018.12.30 10:21

This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.

By Antonio from French - 2018.06.05 13:10

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