Sapphire Window

Sapphire is a single crystal aluminum oxide (Al2O3). Its Mohs hardness is 9, it is one of the hardest materials. Sapphire has good mechanical strength, and it is also transparent from visible to IR spectrum. So, it is always used as window material where scratch resistance is required.

Lattice Constant: a =4.75 A; c =12.97ATransparent
Range: 180nm ~ 4500nm
Density: 3.98g/cm³Mohs Hardness: 9
Melting Point: 2030℃Thermal Conductivity: 0.04W/m/K
Expansion Coefficient: 8.4x10^-6/K
Refractive Index: 1.755@1um

Specifications

Material	Optical Sapphire
Dimension Tolerance	+0.0/-0.1mm
Thickness Tolerance	±0.2mm
Clear Aperture	>90%
Parallelism	<1arc minutes
Surface Quality	80/50 or better
Flatness	<λ /2@633nm or better
Chamfer	Protected <0.5mmx45deg
Coating	None, per your request

Information

Product Line

WARRANTY

All products are guaranteed to be in specifications in material and workmanship for a period of 12 months after shipment.
We do not assume liability for installation, labor or consequential damages.
This warranty is not suitable for failure of the products due to misuse, abuse, accident, or neglect.

Contacts

Deln Optics
E-mail: [email protected]

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