30mm Germanium Windows Dlc Bbar Coating

• Usage: Lighting, Optical
• Type: Windows
• Transmittance: >95%
• Shape: Plano
• Material: Optical Glass
• Lenses Color: Clear
• Customized: Customized
• Coating: UV
• Diameter: 76.2mm
• Surface Quality: 60-40/40-20
• Coat: Ar 10.6um
• Clear Aperture: >90% of Diameter: >90% of Diameter
• Transport Package: Electrolytic Capacitor Paper, Foam, Carton
• Specification: customerised
• Trademark: FineWin
• Origin: China

Product Description

The transmission wavelength for Monocrystal Germanium is 2-12um, it is a common infrared crystal which is widely used for infrared image system and infrared spectrograph systems. Ge has a small absorbency at 10.6um. It is a good material for CO2 lens and windows.

Optical Properties
 

Transmission Wavelength	2000nm-12000nm
Absorptivity (1/cm)	1.3*10-3 @ 3800nm 3*10-2 @ 10600nm
Thermo-optical coeffecient ,dn/dT (1/k)	4.08*10-4 @10600nm

 

Refractive index range(20ºC)

Wavelength(nm)	Refractive index(n)	Wavelength(nm)	Refractive index(n)
2200	4.0879	8000	4.0057
3000	4.0451	9000	4.0040
3800	4.0267	10600	4.0028
5000	4.0160	11000	4.0025
6000	4.0107	12000	4.0021
7000	4.0079	13000	4.0018

 

Overseas exhibition

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.