Infrared Single Crystal Germanium Lens with AR and DLC Coating,wavelength 8-14um,3-12um

$60.00
20-199 Pieces
$30.00
>=200 Pieces
Min. Order
20 Pieces
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Company Information

Wuhan Especial Optic Inc.

CN Manufacturer, Trading Company
Response Time
<24h
Response Rate:
88.9%
Transactions
US$ 20,000+
4 Years Paid Supplier Gold Supplier Onsite Check Trade Assurance
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Quick Details

Port: Wuhan Hubei
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 5000 Piece/Pieces per Month
Place of Origin: Hubei China
Brand Name: None
Model Number: Customized
Material: Single Crystal Germanium
Usage: Infrared
Structure: Customized
Shape: Customized
Material: Single Crystal Germanium
Usage: Infrared System
Surface quality: 40/20
Power(fringe@633nm): N&lt;Lambda/2(a)633nm(in 25mm)
Centration: 3 Arc Minutes
Focal length Tolerance: +/-0.5%
Diameter Tolerance: 0.10mm
Thickness tolorance: +/-0.1mm
Coating: BBAR 8-14um
Angle of Incidence: 0 degree
Delivery Detail: Shipped in 35 days after payment
Packaging Detail: First optical special paper Then plastic foam packaging film And hard carton box with quakeproof filler

Germanium Lens

 

Product Description

Germanium is used widely for lenses and windows in thermal imaging, FLIR applications, as germanium viewports. Its high index of refraction (about 4) makes it of particular interest. Useful transmission range of Germanium windows is from 2 to 13µm. Germanium is opaque in the visible.

 

Custom germanium windows ,lenses and prisms are available in any size and configuration. Anti-reflection coatings can be applied for 2-14µm or 8-12µm (BBAR coating or DLC/BBAR) depending on your custom application.

 

Wuhan Especial Optic products Hight-pricision Germanium lens for many years,our Ge lenses with good Power,surface quality,centration and hight transmittance Coating are popular in infrared imaging system.We can offer Ge lenses in types:Plano convex lens,Plano concave lens,Double convex lens,Double concave lens and Meniscus lens.

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Germanium lenses specifications:

 

 

Standard precision

High-precision

Dimension Tolerance

φ5-250mm+0/-0.2

φ3-350mm+0/-0.2

Thickness Tolerance

1-50mm+/-0.1

1-50mm

Centration

3 arc minute

1 arc minute

Surface Quality

60/40

20/10

Power(fringe@633nm)

N<λ/2@633nm(in 25mm)

N<λ/10@633nm(in 25mm)

Clear Aperture

>90%

>95%

Chamfer

Protected <0.5mmx45deg

Protected <0.5mmx45deg

 

Ge Transmission

 

Germanium properties
Chemical FormulaGe
Crystal FormPoly or Single Crystal
Crystal ClassCubic
Resistivity, Ohm*cm5-40
Lattice Constant, Å5.66
Molecular Weight72.60
Density, g/cm3 at 300 K5.33
Dielectric Constant for 9.37 x 109 Hz at 300 K16.6
Melting Temperature, K1210
Thermal Conductivity, W/(m K) at 293 K59
Thermal Expansion, 1/K at 298 K6.1 x 10-6
Specific Heat, cal/(g K) at 273-373 K0.074
Debye Temperature, K370
Bandgap, eV0.67
Solubility in waterNone
Knoop Hardness, kg/mm2800
Mohs Hardness6.3
Young's Modulus, GPa102.66
Shear Modulus, GPa67.04
Bulk Modulus, GPa77.86
Poisson's Ratio0.278

 

 

Company Information

 

Line of prodution

 

3

 

Production equipment

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Packaging & Shipping

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