Optical Glass Plate , Single Crystal Glass For Wrist Watch Glass Lens
|Material||99.999％ Al2O3||Industry||Led，optical Glass，|
|Application||Semicondutor Wafer, Led Chip, Optical Glass Window, Electronic Ceramics||Color||White Or Red Or Blue|
|Vision Light Transmissivity||85％||Advantagement||High Hardness9.0，wear Resistance,|
sapphire glass lens for watch, sapphie optical lens, watch glass lens by sapphire, sapphire rough lens,sapphire protective glass for cover surface
1. Size for picture sample in details
Quality: Sapphire optical grade no bubble ,chipping,
pictures size: dia40.5x1.8mmt A-axis±1°,LP/LP
2. About sapphire glass
Single crystal sapphire possesses a unique combination of excellent optical, physical and chemical properties. The hardest of the oxide crystals, sapphire retains its high strength at high temperatures, has good thermal properties and excellent transparency. It is chemically resistant to common acids and alkali at temperatures up to 1000 °C as well as to HF below 300 °C . These properties encourage its wide use in hostile environments where optical transmission in the range from the vacuum ultraviolet to the near infrared is required. Sapphire is anisotropic hexagonal crystal. Its properties depend on crystallographic direction (relative to the optical C-axis).
Aluminum oxide (Al2O3) crystal substrate
six square a =4.758 Å c= 12.992 Å
(11-20 ) - a plane: 2.379 Å (1-102) - r plane: 1.740 Å
(10-10) - m plane: 1.375 Å (0001) - c plane: 2.165 Å
Single crystal purity
3. Productions in fact
4. how about sapphire glass process ?
Sapphire Crystals->sapphire block in custiomzed plane-> (anneal->)check--> wire saw cut-->
repair shape-->rough lapped-->polished-->finished check
Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, EMS etc by FOB delivery.
Q: How to pay?
A: 50％ deposit by T/T, Paypal, Secure payment and Assurance payment.
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 25pcs. if 100pcs it's better.
(2) For customized products, the MOQ is 25pcs up.
Q: What's the delivery time?
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.