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1.0 Sapphire Windows and Sapphire lenses General Specifications
|Edge Finish||Ground and beveled|
|Surface Quality||commen 40-20 scratch-dig|
the best λ/4 @ 633 nm
|Parallelism||≤3 arc min (≤0.9 mrad)|
|Clear Aperture||>80% of central diameter|
|Hardness (Knoop)||1370 kg mm-2|
|Young's modulus||3.4 x 1011 N m-2|
|Thermal Limit||22 W m-1 K-1|
|Thermal expansion coefficient||8.4 x 10-6 K-1|
Sapphire optical windows are ideal for applications where high
pressure, vacuum, or corrosive atmospheres are a consideration.
Sapphire, a single crystal form of Al2O3, is resistant to attack by
strong acids due to its high dielectric constant. It has high
compressive strength and a high melting point. It is also resistant
to UV radiation darkening. Our sapphire optical windows are not
coated, but a single layer coating of MgF2 on each surface of the
window increases the single surface transmittance to 99% throughout
the entire visible spectral region. Please note the SAW series
sapphire windows are provided in random axis orientation by default
and its birefringent nature could affect the polarization state of
Sapphire Washers, Sapphire Windows, Sapphire Bearings, Sapphire
Rods, Sapphire Tubes, Ruby
sapphire wafer, dome sapphire, Sapphire insulation Film, Sapphire
ball lens, Sapphire/ruby ball 1
3.0 QC. Standard for sapphire
Q1: Can I have samples to test?
A: Yes,we are pleased to supply samples to test and check
quality,mixed sample order is available.
Q2: Do you have any MOQ limited? A: Our MOQ: 3pcs
Q3: What’s the lead time?
A: Sample :2-3 days.Mass production: 10-20 days.
Q4:How do you ship the goods and how long does it take?
A: We usually ship goods by UPS,FEDEX,TNT. It usually takes 3-5
days to arrive.
Q5: Do you offer guarantee for your products?
A: After test them if not pass test,you can return the goods at any
Q6: Do you accept OEM?
A: We have our own brand-metalaser. OEM is also acceptable.