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Germanium Lens Prisms Window
USD $1 - $200 /Piece
Min.Order:1 Piece
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Changchun Sunday Optoelectronics Co.,ltd
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Business Type: ManufacturerMain Products: optical glass lenses ,glass prisms ,glass filters ,glass mirror ,laser diode ,laser module ,powell lens ,collimator lens ,spherical lens ,cylindrical lens ,ball lenses ,glass windowProduct Details
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(20℃)
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 |
Manufacture Specifications
Diameter | 3mm to 280mm |
Diameter Tol. | +/-0.1 |
Surface Quality | 40-20 standard |
Surface Quality | 40/20 |
Flatness | 1/4 lambda |
Chamfer | 0.25mmx45degree |
Focal Length Tol. | +/-1% |
Coating | Customer design |
sales@sunday-optics.com Bess Zhang
Phone:+8615104452660 +8618744192450
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