sapphire cover lens for phone camera, scanner cover glass by sapphire, sapphire optical lens, sapphire lens for covering
1. sapphire Introduce
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 your application.
|Edge Finish||Ground and beveled|
|Surface Quality||40-20 scratch-dig|
|Surface Flatness||>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|
1. OEM Size and Design. Any shape is ok.
2. CE&Rohs Material. Europe, Japan,China, depend on your requirements.
3. We can provide engineer drawing.
4. Printting logo is ok. Camera Lens
5. Fast delivery date.
+ Sonicleaning,silk-screen printing and electroplating in cleanroon;
+ 100% QC inspection before packing;
+ 5years in sapphire field for sapphire wafers and optical lens
+ Vacuum packing;
Specifications of 2-4inch Sapphire wafer for camera cover(can be customized to small size)
|Product||Sapphire wafer||Sapphire substrate(window)|
|Orientation||0001(C-axis), 1012(R-axis) ± 1°, 0.5°, 0.25°, 0.1°|
|Reference Flat Orientation||1120(A-axis), 1010(M-axis)|
|Reference Flat Length||16±1mm, 22±1mm, 32.5±1mm|
|Secondary Flat Length||8±1mm, 11±1mm, 15±1mm|
|Thickness||800~380um(dia0.5~4“), 430(2-4"), 435~500um(2-6") & Adjustable|
|Surface||Two side polished|
we also can provide the service for cutting above wafer into small size lens for useing directly.
Packing ＆ Delivery
|Packaging||products → single cassette or 25 pcs boxes or PET films in cleaning room|
|Inner packing → Foam plastics anti-vibration cushion liner for package|
|Outer packing → five layers corrugated carton paper box or as required|
|Shipping||by air → UPS , DHL , Fedex , TNT, EMS ,SF ,etc|