| Place of Origin: | Guangdong, China (Mainland) |
|---|---|
| Brand Name: | Tianzhili |
| Price: | US $4.50 |
| Type: | Watches For Parts | Material: | Sapphire |
|---|---|---|---|
| Size: | 1-200mm | Shape: | Custom Shape |
| Service: | OEM | MOQ: | 100pcs |
| Surface Treatment: | Polished | Feature: | 9H Hardness |
| Coating: | AR-Coating | Application: | Watch Glass |
| Name: | Sapphire Glass | ||
| High Light: | smart watch sapphire crystal,optical collimator lens |
||
9H Hardness Polished Smart Watch Sapphire Crystal Watches For Parts Type
Product Description
|
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 |
Sapphire Watch Glass Show:
Company Information
