Sapphire Windows Tough and Pressure Resistant Glass for a Dive Watch

• Usage: Lighting, Optical
• Type: Flat Lens
• Transmittance: >95%
• Model NO.: FWsapphire
• Shape: Cylindrical Shaped Lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001
• Customized: Customized
• Coating: UV
• Diameter: 1mm-500mm
• Surface Quality: 40/20;60/40
• Coat: Anti-Reflective (Ar) Coatings
• Clear Aperture: >90% of Diameter: >90% of Diameter
• Surface Flatness: 1/4 Lambda
• Transport Package: Electrolytic Capacitor Paper, Foam, Carton
• Specification: customerised
• Trademark: FineWin
• Origin: China

Product Description

sapphire windows tough and pressure resistant glass for a dive watch

Sapphire is a hard crystal,it widely been used for watch and mobilephone, Beauty equipment ,lasers,LED, and so on.

1. Why choose the sapphire?

Thinner and Stronger than Standard Glass Windows
Transmits Wavelengths Ranging From UV to Mid-Infrared
Features Extreme Surface Hardness and Chemical Resistance

2. What is sapphire windows

Sapphire Windows are manufactured from single crystal sapphire, making them ideal for demanding applications (such as laser systems) because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. Sapphire is the second hardest crystal next to diamonds and, because of their structural strength, sapphire windows can be made much thinner than other common dielectric windows with improved transmittance. Chemically, sapphire is single crystal aluminum oxide (Al₂O₃), and is useful in a transmission range from 0.2 - 5.5µm.

3. Product available

Sapphire Washers, Sapphire Windows, Sapphire Bearings, Sapphire Rods, Sapphire Tubes, Ruby
sapphire wafer, dome sapphire, Sapphire insulation Film, Sapphire ball lens, Sapphire/ruby ball 

   a: Dimesion size : 0.2-300mm or customization , thickness >0.1mm
   b: Gemstone Type: Synthetic (lab created)
   c: AR coating or as your request
   d: Product shape : round , rectangle or custom shape
   e: Chemical Composition : Al₂O₃

4. Materials characteristic 

Refractive index (nd)	1.768
Coefficient of dispersion (Vd)	72.2
Density (g/cm3)	3.97
TCE(μm/mºC)	5.3
Soften Temperature(ºC)	2000
Knoop hardness(kg/mm2)	2200

5. Sapphire Windows and Sapphire lenses General Specifications
 

Diameter	0.2-300mm  +/-0.1mm or +/-0.02mm or customization
Thickness	0.10-100mm± 0.1mm or +/-0.02mm
Surface quality (scratch & dig)	60/40, 40/20 or better
Surface accuracy	λ/10, λ/2, λ
Clear Aperture	>85%, >90%
Parallelism	+/-3' ,+/-30''
Bevel	0.1~0.3mm×45 degree
coating	AR, BBAR or upon customer request( UV, VIS, IR)

Production equipment:

FAQ:

Q: What's the way of shipping and cost?	A: (1) We accept DHL, Fedex, TNT, UPS, EMS etc.
	(2) If you have your own express account,       it's great.If not,we could help you ship them.
Q: How to pay?	A:  T/T, Paypal, etc
Q: What's your MOQ?	A:  (1) For inventory, the MOQ is 5pcs.
	(2) For customized products, the MOQ is 10pcs-25pcs.
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 or 3 weeks after you place the order.
	(2) For the special-shaped products,       the delivery is 4 or 6 workweeks after you place the order.
Q: Do you have standard products?	A:   Our standard products in stock.
Q: Can I customize the products based on my need?	A:  Yes, we can customize the material, specifications and optical       coating for your optical components based on your needs.