Detection Equipment Sapphire Optical Windows High Pressure Resistant;
Monocrystalline Al2O3 sapphire all surface polished sapphire crylinder rod lens sapphire plunger stick
Sapphire is a single crystal form of Al2O3 with good chemical, mechanical and optical properties. Sapphire is resistant to strong acids and can be used in corrosive environments. The surface is scratch and abrasion resistant with a Knoop hardness of up to 1800 parallel to the optical axis (C-axis) and a Knoop hardness of 2200 perpendicular to the optical axis.
Uncoated sapphire windows are suitable for harsh conditions, including high temperature, high pressure, high vacuum or corrosive environments. Sapphire has high compressive strength and is resistant to strong acid corrosion.
Sapphire windows are highly resistant to extreme temperature and pressure changes. These windows are often used as viewing windows to observe the interior of vacuum chambers or chambers containing high temperature plasma.
Wide transmission range
Uncoated sapphire is transparent over a broad wavelength range from 170 nm to 5.5 μm.
Notes on Birefringence
SAW series sapphire windows have random axis orientation. Since sapphire is slightly birefringent, this can cause a slight change in the polarization state of the transmitted light.
Optical Sapphire window Specifications:
|Structure||Square plano lens|
|Substrate Material||Glass Sapphire|
|Diameters ＆Thickness Available||1 mm to 400mm for Diameter ,0.08-300mm for Thickness|
|Surface Quality||60-40 Scratch-Dig(general) 10-5 to 80-50 is available|
|Surface Flatness||1/4 lambda to 3lambda|
(Peak to Valley)
|Thickness tolerance||+/-0.1mm or better|
|Focal length tolerance||+/-1%|
|Clear Aperture||>90% of Diameter|
|Chamfer||0.05-0.5mmx45degree,according to customer’s needs.|
|Centration||3 arc min|
AR,Mgf2 is on request,R<0.25%
Packing and Delivery-
1. We will use protective plastic and customized boxed to pack.(Enviroment friendly material)
2. We could do customized packing according to the quantity.
3. DHL/Fedex/UPS Express usually takes about 3-7working days to the destination.