Germanium Lenses
In the range of 2-12 μm, germanium is the most commonly used material for the production of spherical infrared lensesand windows for high efficiency infrared in the imaging system. Germanium has a high refractive index (about 4.0 through 2-14μm band), usually do not need to be modified due to its low chromatic aberration in low power imaging systems.
Germanium optical performance is severely affected by temperature; the transmission rate decreases with the increase of temperature, most applications with Germanium elements involved can only be applied below 100 degrees Celsius. Designers also need to pay attention for certain weight constraints in system design with a density of germanium (5.33 g/cm3). Germanium is mainly used in the thermal imaging system and infrared (FLIR) field.
It is critical that the surface of the material has a promising finish and good transmittance. Hyperion Optics provides 40-20 surface quality Ge lensesas factory standard products, with up to 1/4 lambda in surface accuracy. Our outstanding CNC lathe capability has leveraged our machining efficiency to meet rapid delivery. GEaspheric zoom lensstand up well to harsh environments and we offer the most popular sizes with Anti-Reflection Coatings. are also available for your application; please refer us Aspheric Lenses for more information.
High resistivity hemispherical lens available
Available with AR or DLC coating
Available in a wide variety of diameters and focal lengths
Our germanium opticsare all tested with our Zygo interferometer and spectrophotometer as standard testing items to ensure superior quality. Refer to our typical manufacturing specs for your information below.You can also contact us for manufacturing limit or custom specifications.
|
Germanium Lens |
COMMERCIAL GRADE |
FACTORY STANDARD |
PRECISION GRADE |
|
Diameter Tolerance(mm) |
0 |
0 |
0 |
|
Center Thickness(mm) |
±0.01 |
±0.03 |
±0.025 |
|
Radius (%) |
±1% |
±0.5% |
±0.5% |
|
Focal Length Tolerance (%) |
6 |
<3 |
<1 |
|
Cosmetic(MIL-C-13830A) |
100-80 |
40-20 |
10-5 |
|
Figure Tolerance in λ(Pow/irreg) |
5-2 |
2-1 |
2001/1/4 |
|
Centration (Arc min) |
5' |
5' |
3' |
|
9~50:1 |
|||
|
Coating (T% avg) |
96% @ 3 - 5um / 7 - 14um.95% @ 4 - 12um |
||
|
Materials |
Optical Grade Germanium |
||
If you want to buy germanium ir window, please contact us.
As an optical assembly manufacturingcompany, we will do our best to meet all the needs of customers.
在线联系供应商
Other supplier products
 |
BBO Crystal | he BBO Crystal is a high-temperature phase of BaB2O4, is an excellent birefringent crystal an efficient NLO crystal for the second, third and fourt... |
 |
Beam Expander | Beam Expander Leave A Message! Beam expansion Laser beam expansionor reduction is a common application requirement in most labs using lasers or ... |
 |
Fisheye Lenses | Typically opposite of fisheye lenshas a front lens group of a greater negative refractive power than an ordinary inverted telephoto wide angle lens... |
 |
Chalcogenide Lenses | Chalcogenide glass is containing one or more chalcogens (sulfur, selenium and tellurium, but excluding oxygen). Chalcogenide components are becomin... |
 |
Microscope Lenses | Hyperion Optics is expertized in challenging custom design and manufacturing microscope objective lenses range from UV to Infrared wavelength, for ... |
Same products
 |
Sapphire Lenses | 卖方: Hyperion Optics | Sapphire is the best medium for sapphire glasslenses that require a broad spectrum of light trans... |
 |
Magnesium Fluoride Lenses | 卖方: Hyperion Optics | Uses of Magnesium Fluoride CVD magnesium fluoride (MgF2-CVD) has good mechanical properties, che... |
|
|
Germanium Lenses | 卖方: Hyperion Optics | In the range of 2-12 μm, germanium is the most commonly used material for the production of sp... |
 |
Gallium Arsenide Lenses | 卖方: Hyperion Optics | GaAs is semi insulator, which can be used in large power continuous CO2 laser system to replace t... |
 |
Chalcogenide Lenses | 卖方: Hyperion Optics | Chalcogenide glassis containing one or more chalcogens (sulfur, selenium and tellurium, but exclu... |
