Type: | Watches For Parts | Material: | Sapphire |
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Size: | 1-200mm | MOQ: | 100pcs |
Shape: | Custom Shape | Surface Treatment: | Polished |
Service: | OEM ODM | Surface Quality: | 80/50,60/40,40/20 |
Usage: | Sapphire Glass For Watch | Coating: | AR,AF-Coating |
Hardness: | 9H | ||
High Light: | sapphire glass watch face,custom sapphire glass |
High Performance Polished Sapphire Crystal Glass Watches For Parts Type
Product Description
Product Name
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OEM Customized High Quality Laser cutting sapphire crystal watch glass
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Diameter Tolerance
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+0.0/-0.05mm
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Center Thickness Tolerance
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±0.05 mm
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Focal Length Tolerance
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±1%
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Surface Quality
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80/50,60/40, 40/20 or better
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Material
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Optical glass(K9/BK7/JGS1,Etc.)
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Clear Aperture
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>90%
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Centering
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<3 arc min
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Coating
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AR coating or custom made
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Bevel
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Protective bevel as needed
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Property |
Specification |
Thickness |
0.5-50mm |
Size tolerance |
0.02mm |
Edge Finish |
Ground and beveled |
Surface Quality |
40-20 scratch-dig |
Surface Flatness |
λ/4 @ 633 nm |
Parallelism |
≤3 arc min (≤0.9 mrad) |
Clear Aperture |
>80% of central diameter |
Hardness (Knoop) |
1370 kg mm-2 |
Young's modulus |
3.4 x 1011 N m-2 |
Thermal Limit |
22 W m-1 K-1 |
Thermal expansion coefficient |
8.4 x 10-6 K-1 |
Company Information
Our company has a complete ,standardized and scientific quality management system.Characteristic lead the future. Characteristic products and service is the foundation of our cooperation,and we look forward to create brilliant achievements together with you.
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