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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
What is sapphire advantagement ?
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 rods are manufactured from single crystal sapphire, 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.
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.Comparison of optical window materials
1. 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
commen size for sapphire lens
sapphire Windows general specifications
inner and outer Diameter 0.2-300mm or customization
Diameter tolerance +/-0.1mm or +/-0.02mm
Thickness 0.10-100mm
Thickness tolerance ± 0.1mm or +/-0.02mm
Surface quality (scratch & dig) 60/40, 40/20 or better
Surface accuracy λ/10, λ/2, λ
Clear Aperture >85%, >90%
Parallelism +/-3' ,+/-30''
Bevel 0.1~0.3mm×45 degree
coating AR, BBAR or upon customer request( UV, VIS, IR)
3.0 sample
4. We can supply professional customized service in time and provide cooperation and support of new product development and technology appliance.
6.0 FAQ –
Q: What you can supply logistics and cost?
(1) We accept DHL, Fedex, TNT, UPS, EMS, SF and etc.
(2) If you have your own express number, it's great.
If not, we could assist you to deliver
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: What's the MOQ?
(1) For inventory, the MOQ is 5pcs.
(2) For customized products, the MOQ is 5pcs-20pcs.
It depends on quantity and technics
Q: Do you have inspection report for material?
We can supply ROHS report and reach reports for our products.