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Wrist Watch Raw Sapphire Plate Dia 34.5mm Surface Lapped Al2O3 Crystal Watch Glass
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Brand Name:zms
Model Number:watch34.5
Price:by case
Payment Terms:L/C, T/T
Supply Ability:1000pcs/month
Delivery Time:2-4weeks
Company Data
Verified Supplier
Contact Person
Wang
Business Type:
Manufacturer Agent Importer Exporter Trading Company
Officials:
Room.1-1805,No.1079 Dianshanhu Road,Qingpu Area Shanghai city, China /201799
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
Raw sapphire glass plate for wrist watch,dia34.5mm round shape
surface lapped A-axis Al2O3 crystal watch glass
1. Comparison of Sapphire glass
sapphire waferis one of the hardest materials, and possesses very
good transmission during the range of visible and near IR
spectrum.It is widely used as optical window in infrared and far
infrared military equipments, apparatus and instruments of
satellite and space technology, and navigation and spaceflight,
such as night infrared scope/sight and night vision camera, etc.The
sapphire wafercrystal window is intensively applied in high-tech
fields.
sapphire waferoptical 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.
| Material | Properties | Applications |
| Sapphire | Transmission Range: 180-4500nm Refractive Index: 1.755@1000nm Strong Hardness | Best choice for scratch resistance applications Thinner optics Wide Transmission Range |
| Fused Silica | Transmission Range: 185-2500nm Refractive Index: 1.4858@308nm Low Thermal Expansion Coefficient: 0.54 x 10-6K | UV to IR spectrum Best choice for thermal resistance application. |
| other |
Sapphire glass cover of applications
Specificaitons for sample in details
materials:sapphire optical grade
orientation:a-plane
size:34.5x5.0mmt t
thickness:5.0mm lapped 2sp
surface: double side lapped
Ra:＜2um
TTV:＜20um
Bow:＜20um
The Sapphire glass process
sapphire crystal (KY)--> customized orientation rough
block--> anneal 1600°-->wire saw cut-->
shape rough lapped-->chamfer---> (anneal ) ---> fine groud
lapped--> polished -->check test
| General specifications |
| Diameter | 0.2-300mm |
| Thickness | 0.1-100mm |
| Dimension tolerance | +/-0.1mm or +/-0.02mm |
| Surface quality (scratch & dig) | 60/40, 40/20 or better |
| Clear aperture | >85%, >90% |
| Surface accuracy | L/4, L/2, L |
| Parallelism | +/-3' ,+/-30'' |
| Bevel | 0.1~0.3mm x 45 degree |
| Coating | AR, BBAR or Custom |
FAQ:
Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, EMS etc.
(2) it is fine If you have your own express account ,
If not,we could help you ship them and Freight is in accordance with the actual settlement.
Q: How to pay?
A:100％ T/T, Paypal, we can Secure payment and Assurance payment.
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 50pcs. if 100pcs it's better.
(2) For customized products, the MOQ is 50pcs 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 -4 weeks after you order
contact.
Q: Do you have standard products?
A: Our standard products in stock. as like substrates 2inch 0.43mm
1sp or
2sp thickness each orientation in stock.
Thanks~~~
Company Profile
SHANGHAI FAMOUS TRADE CO.,LTD
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of
Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014.
We specialize in processing a varity of materials into
wafers, substrates and custiomized optical glass parts.components
widely used in electronics, optics, optoelectronics and many other
fields. We also have been working closely with many domestic and
oversea universities, research institutions and companies, provide
customized products and services for their R&D projects.
It's our vision to maintaining a good relationship of cooperation with our all
customers by our good reputatiaons.
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