Cheaper sapphire glass windows for watch with AR coating
Basic Info
Model No.: SPL
Product Description
Sapphire Windows with AR Coating for watch
Material | Sapphire(Al2O3) |
Density(20°C) Kg/m3 | 3.98×103 |
Crystal Structure | hexagonal |
Crystal lattice constant | a=4.785Å c=12.991 Å |
Mohs hardness | 9 |
Melting Point | 2045°C |
Boiling Point | 3000°C |
Coefficient of Thermal Expansion | α=5.8×10 -6 /K |
Specific heat | 0.418W.s/g/k |
Thermal conduction | 25.12W/m/k(@100°C) |
Refractive Index (nd) | no=1.768 |
ne=1.76 | |
dn/dt | 13×10-6/K(@633nm) |
Tranmission | T≈80%(0.3~5um) |
Permittivity | 11.5(//c), 9.3(⊥c) |
Size of the windows can be customized according to users’ needs
Material: Sapphire
Diameter (Dimension) Tolerance:+0.0/-0.05mm
Thickness Tolerance:±0.05
Surface Accuracy:λ/4 at 632.8nm
Surface Quality:40-20
AR coated or customer request.
Competitive Advantages
Well and High Quality Control ,
New Product ,
Customer's Design and Logo are Welcome ,
Competitive Prices ,
In a Variety of Design ,
Small Order Acceptable
Why Sunday?
1.Sunday design,manufacture,testing together.
2.Sunday has no minimun quantity,sample order is acceptable for customers.
3.Fast delivery based on the 4 production lines.
4.Sunday has good after-sales service.
5.If the quality of our products is unqualified,,sunday promise to produce new ones or repaire them.and we will
responsible for all the cost.
Contact Us
Changchun Sunday Optoelectronics Co.,ltd
No9576 Donghuan Road, Changchun, 130033,China
TEL:+86-431-81323204 FAX: +86-431-81323204
Website:
Product Categories : Sapphire Products > Sapphire Window
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