sapphire optical lens, Al2O3 single crystal glass ,sapphire optical
glass ingots, sapphire optical rods,sapphire optical stick,Al2O3
single crystal glass lens,optical glass ingots by sapphire
,sapphire optical rods
1.Why choose the sapphire?
1 - Thinner and Stronger than Standard Glass Windows
2 - Transmits Wavelengths Ranging From UV to Mid-Infrared
3 - Features Extreme Surface Hardness and Chemical Resistance
Sapphire glass products are manufactured from single crystal
99.999％Al2O3, making them ideal for demanding applications (such as
laser systems) because of their extreme surface hardness, high
thermal conductivity, high dielectric constant and resistance to
common chemical acids and alkalis. Sapphire is the second hardest
crystal next to diamonds and, because of their structural strength,
sapphire windows can be made much thinner than other common
dielectric windows with improved transmittance. Chemically,
sapphire is single crystal aluminum oxide (Al2O3), and is useful in
a transmission range from 0.2 - 5.5µm.
2.Comparison of optical window materials
Material Properties Applications
BK7
Transmission Range: 330-2100nm
Refractive Index: 1.5164@588nm Most popular and low cost Visible
and near IR spectrum applications
Fused Silica
Transmission Range: 185-2500nm Low Thermal Expansion UV to IR
spectrum
Refractive Index: 1.4858@308nm Coefficient: 0.54 x 10-6K Best
choice for thermal resistance
Sapphire
Transmission Range: 180-4500nm Strong Hardness Best choice for
scratch resistance applications
Refractive Index: 1.755@1000nm Thinner optics Wide Transmission
Range
Calcium Fluoride
Transmission Range: 170-7800nm Little Hygroscopic Susceptibility IR
laser applications
Coefficient: 18.85 x 10-6K High Thermal Expansion
Refractive Index: 1.399@5000nm
MgF2
Transmission Range: 120-7000nm UV laser applications
Refractive Index: 1.376@700nm
3.0 sample in details
Typical specifications:
| Available orientations: | C-axis [0001], R-axis [1-102], A-axis [11-20], M-axis [10-10],
Random |
| Sapphire windows / blanks | dia0.5-dia400mm, ＜400x400mm
|
| Diameter / Width: | 25.0 - 250.0 mm |
| Tolerance: | Standard ± 1°, Special to ± 0.1° |
| Thickness: | Minimum 0.1, maximum 200.0 mm |
| Surface finish: | As cut, fine ground, lapped, polished s/d 80/50, 60/40, 40/20,
20/10, 10/5, according to the MIL-0-13830A |
| Ends / Edge quality: | Fine ground, 80/50 |
| "As-grown" sapphire tubes: | outer 1-200mm |
| Dimensions | Up to 200 mm inner diameter, 0,5 - 50 mm wall thickness, 300-600 mm tubes length |
| Orientation | C-axis in the length of the tube |
| Polished sapphire tubes: | Up to 200 mm inside diameter, 0,5 - 50 mm wall thickness, 10-350 mm tubes length |
| Ingots: | Diameter/Width 5-220 mm, Thickness/Length 5 – 250 mm |
| Surface quality | As-cut, Ends/Edge Quality Diamond cut |
4.Process step of sapphire products
5.0 FAQ –
Q: What you can supply logistics and cost?
(1) We accept DHL, Fedex, TNT, UPS, EMS, SF and etc by FOB
delivery.
(2) If you have your own express number, it's great.
Q: What's the delivery time?
(1) For the standard products such as ball lens, powell lens and
collimator lens:
For inventory: the delivery is 5 workdays after order.
For customized products: the delivery is 2 or 3 workweeks after
order.
Q: How to pay?
50％ deposit ,50％ before delivery by T/T, Paypal, West Union,
MoneyGram.
Q: What's the MOQ?
(1) For inventory, the MOQ is 3pcs.
(2) For customized products, the MOQ is 10pcs-30pcs.
