Detection Equipment Sapphire Optical Windows High Pressure
Resistant;
Monocrystalline Al2O3 sapphire crlinder rod lens polished surface
with groove
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 is Ideal for high temperature, high pressure or strong
vacuum environments and have corrosion resistant
- Transparency from 170 nm to 5.5 µm
- Very hard and more durable than standard optical glass;
- Unique properties of sapphire material
- High temperature and high pressure treatment
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 windows are applied for protecting fragile optical
components inside an equipment or directly used for watching
windows because of its very good physical property.
they are adopted to isolate two physical environments while
allowing light to pass. Optical Sapphire windows refer to a piece of transparent optical
material that allows light into an optical instrument. They are
pieces of optical glasses with ground and polished faces that are
relatively parallel.
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 |
| DiameterTolerance | +0.00/-0.10 mm |
| Surface Quality | 60-40 Scratch-Dig(general) 10-5 to 80-50 is available |
| Surface Flatness | 1/4 lambda to 3lambda |
Surface Irregularity
(Peak to Valley) | commonly 1-3λ |
| 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 |
| Coating | AR,Mgf2 is on request,R<0.25%
Visible wavelength,laser wavelength |
- We will fabricate as the drawings and requirements rigorously.
- We have the very Fast delivery capacity within 15days by Customized
size
- In addition,we Support { ONE WEEK REFUND MONEY} if not qualified.
- We also can make substrates, wafers, rods,Bump join; Lens with
step＆hole
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.
