Factory Promotional Quartz Flow Tube - Sapphire Optical Windows – LZY

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Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" as well as the theory of "quality the basic, believe in the 1st and management the advanced" for Reflex Gauge Glass, Silver Coated Quartz Triple Bore, Synthetic Quartz Plates, Since establishment in the early 1990s, we have set up our sale network in USA, Germany, Asia, and several Middle Eastern countries. We aim to be a top class supplier for worldwide OEM and aftermarket!

Factory Promotional Quartz Flow 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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The business keeps to the operation concept "scientific management, premium quality and efficiency primacy, customer supreme for Factory Promotional Quartz Flow Tube - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Nicaragua, European, Lahore, Today, We are with great passion and sincerity to further fulfill our global customers' needs with good quality and design innovation. We fully welcome customers from all over the world to establish stable and mutually beneficial business relationships, to have a bright future together.

The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.

By Joa from The Swiss - 2017.06.19 13:51

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 Edward from Chile - 2017.10.25 15:53

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