Al2O3 Single Crystal Sapphire Glass Lens Applied Semiconductor
Substrates
double side polished sapphire plates by random
orientation,A-plane,M-plane,R-plane sapphire glass plates
Why choose the sapphire?
Sapphire is a precious gemstone, a variety of the mineral corundum,
an aluminium oxide (α-Al2O3).
The only color which sapphire cannot be is red – as red colored
corundum is called ruby,
Commonly,Because of the remarkable hardness of sapphires – 9 on the
Mohs scale (the third hardest mineral, after diamond at 10 and
moissanite at 9.5) – sapphires are also used in some non-ornamental
applications, such as infrared optical components, high-durability
windows, wristwatch crystals and movement bearings, and very thin
electronic wafers, which are used as the insulating substrates of
very special-purpose solid-state electronics (especially integrated
circuits and GaN-based LEDs).
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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| Specifications | S1 | S2 |
| Diemensions | Diameter from 1mm to 150mm, customized available |
| Thickness | 0.2mm to 50mm , customized available |
| Diameter Tolerance | ±0.05mm |
| Thickness Tolerance | ±0.05mm |
| Edge of Sapphire Windows | fine ground or polished | fine ground or polished |
| Chamfer | minmium 0.2 x 45° | minimum 0.2 x 45° |
| Flatness / Surface Accuracy | λ/4 per inch @633nm | λ/4 per inch @633nm |
| Parallelism | 30 arc second |
| Surface Qulitity | 20/10 | 20/10 |
| Clear Aperture | ≥90% | ≥90% |
| Coating for Sapphire Windows | Antireflection coating at the design wavelength, AR, BBAR, Dual wavelength AR, Laser damage resistant AR |
2.0 General description for optical lens:
Grade: sapphire optical glass no bubble ,color,
Size: Diameter 54x30mmt±0.1mmt(pictures sample size)
general size: dia0.5~dia300mm thickness:0.1~100mm
surface:double side polished/(1sp,lapped)
SD: 40/20(60/40)
Ra:＜0.5nm(0.3nm)
Orientation: C,R,A,M±1°,
Tolerace:±0.02mm(0.01mm)
Flatness: 1λ ,1/2 λ/4,
Sapphire Windows Applications
Sapphire windows are ideal for applications where high pressure,
high temperature, high thermal loads, vacuum, scratch resistance,
corrosion resistance, small coefficient of friction as well as
optical and insulating properties are a consideration.
Sapphire windows normally need to work under extreme operating
conditions, so hard AR coating is required to withstand harsh
environmental conditions and improve resistance to scratching.
Sapphire substrate has a high refractive index, thus usually
requires an antireflection coating on sapphire windows for
sufficient transmission in the region of interest.
In some applications where sapphire windows needs to be soldered or
bonded to metal. Synthetic Sapphire is a single crystal and high
purity, so bare sapphire will not attach to braze or solder alloys
on its own. Through solderable metallization on sapphire windows,
hermetically sealed optics can be created for harsh or vacuum
applications.Sample pictures
Product display
Related products
FAQ:
Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, EMS etc.
(2) If you have your own express account, it's great.If not,
we could help you ship them. Freight is in accordance with the
actual settlement.
Q: How to pay?
A: T/T, Paypal
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 5pcs.
(2) For customized products, the MOQ is 10-30 pcs up.
Q: What's the delivery time?
A: (1) For the standard products
For inventory: the delivery is 5 workdays after you place the
order.
For customized products: the delivery is 2 or 3 weeks after you
place the order.
(2) For the special-shaped products, the delivery is 4 workweeks
after you place the order.
About us
ZMKJ Located in SHANGHAI - one of the most famous cities in China.
we focus on designing, producing of the synthetic sapphire and ruby
bearing, marine equipments etc.
more than5 years. and have rich experice in importing and
exporting.
To explore new market for our products, our company often launches
various products worldwide as well.
Now, facing the keen competition of the market, and with rich
experience in international trade,
we have a high reputation, good quality products and competitive
price. We have had cooperation
with worldwide enterprises. We hope that our work can make your
business perfect.
We are looking forward to establishing relationships with you in
the near future.
