Leading Manufacturer for Precision Glass Machining - Sapphire Optical Windows – LZY

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"Quality initial, Honesty as base, Sincere support and mutual profit" is our idea, so as to build repeatedly and pursue the excellence for Ground Joint Quartz Tubes, Quartz Discharge Chamber, Borosilicate Glass Domes, We guaranteed high quality, if clients were not satisfied with the products' quality, you can return inside 7days with their original states.

Leading Manufacturer for Precision Glass Machining - 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 insist about the theory of growth of 'High excellent, Performance, Sincerity and Down-to-earth working approach' to offer you with great company of processing for Leading Manufacturer for Precision Glass Machining - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Qatar, Hamburg, Swiss, Our solutions have national accreditation standards for experienced, premium quality goods, affordable value, was welcomed by people around the globe. Our products will continue to increase in the order and look forward to cooperation with you, Truly must any of people goods be of interest to you, make sure you letus know. We're likely to be delighted to give you a quotation up on receipt of one's in depth specs.

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A nice supplier in this industry, after a detail and careful discussion, we reached a consensus agreement. Hope that we cooperate smoothly.

By Marjorie from Sheffield - 2017.12.02 14:11

This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.

By Matthew from Belize - 2018.11.11 19:52

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