Customized optical lens for purity of 99.999% germanium lenses

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$0.50 - $5.00 / Pieces | 100 Piece/Pieces Customized optical lens for purity of 99.999% germanium lenses (Min. Order)
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Quick Details
Place of Origin:
Shanghai, China (Mainland)
Brand Name:
Model Number:
germanium lens
germanium (Ge), germanium (Ge)
Optical, Photoelectric device, Armarium, Teaching apparatus,etc.
Plano-convex, Flat-convex, flat-concave, double-concave, concave-convex
Plano, concave, convex,flat
according to your requirements
according to custom's requirements
N=2 , N=0.5 , B=40/20 , C=0.01
other requirement:
Supply Ability
Supply Ability:
100000 Piece/Pieces per Month Customized optical lens for purity of 99.999% germanium lens
Packaging & Delivery
Packaging Details
Package: Blister plate (100PCS/layer)
Lead Time :
Accoring to the contract.


Specific parameters

Customized purity of 99.999% Germanium lenses


Material : Monocrystal line Germanium N type.

Purity: Purity of 99.999%

resistivity : 5-40Ω, crystallographic orientation 111
Specification : Φ6.65, Center thickness=2mm,

F=1.95(Center thickness=1.5mm, F=3.9/5.5)
Precision (the highest) : N=5-10 , B=40/20 , C=0.1
Output : 100K-200K/month





MaterialGermanium (Ge) 
Sizeaccording to your requires
Thickness according to your requires
Diameter Tolerance±0.10 
Thickness Tolerance±0.2 mm
Surface Quality (Scratch-Dig)60-40 (according to your requires)
Spherical Surface Powerbλ/2 (according to your requires)
ShapePlano-convex (customized)
Surface reflectance  30% (per one surface)
Wavelengthaccording to your requires
CoatingUncoated (according to your requires)
Surface reflectance30% (per one surface)









Main Products







Product Description

HENGXIANG optical factory produces a wide variety of Germanium Optical Components, including Silte lenses, IR filters, or windows.

Germanium optical lenses are ideal for collimation or focusing applications called spent monochromatic light. Each lenses are available in a range of sizes or focal lengths for a wide variety of application needs.


Our Germanium Plano-Convex Lenses feature precision polished surfaces, making them ideal for a variety of infrared applications, including Near-Infrared (NIR) imaging, and infrared spectroscopy. Available in a variety of focal lengths from f/1 thru f/10, the lenses are offered uncoated or broadband anti-reflection coated. For custom infrared coating requirements, please contact our Sales Department.



The notable properties of germania are its high index of refraction and its low optical dispersion. These make it especially useful for wide-angle camera lenses, microscopy, and the core part of optical fibers. 

Because germanium is transparent in the infrared wavelengths, it is an important infrared optical material that can be readily cut and polished into lenses and windows. It is especially used as the front optic in thermal imaging cameras working in the 8 to 14 micron range for passive thermal imaging and for hot-spot detection in military, mobile night vision, and fire fighting applications. It is used in infrared spectroscopes and other optical equipment that require extremely sensitive infrared detectors. It has a very high refractive index (4.0) and must be coated with anti-reflection agents. 

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