Germanium Lenses
In the range of 2-12 μm, germanium is the most commonly used material for the production of sphericallensesand windows forhigh efficiency infrared in the imaging system. Germanium has a high refractive index (about 4.0through 2-14μm band), usually do not need to be modified due to its low chromatic aberration in low power imaging systems.
Germaniumoptical performanceis severely affected by temperature; the transmission rate decreases with the increase of temperature, most applications with Germanium elements involved can only be applied below100 degrees Celsius. Designers also need to pay attention for certain weight constraints in systemdesign 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 promisingfinish and good transmittance. Hyperion Optics provides 40-20 surface quality Ge lenses as factory standard products, with up to 1/4 lambda in surfaceaccuracy. Our outstanding CNC lathe capability has leveraged our machining efficiency to meet rapid delivery. Ge aspheric lenses stand 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 Lensesfor more information.
- High resistivity hemispherical lens available
- Available with AR or DLC coating
- Available in a wide variety of diameters and focal lengths
Ourgermanium opticsare all tested with our Zygo interferometer and spectrophotometeras standard testing items to ensure superior quality. Refer to our typical manufacturing specs for your information below.You can alsocontact us for manufacturing limit or custom specifications.
|
Germanium Lenses |
COMMERCIAL GRADE |
FACTORY STANDARD |
PRECISION GRADE |
|
Diameter Tolerance(mm) |
+0 / -0.05 |
+0 / -0.03 |
+0 / -0.025 |
|
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 |
1 - 1/4 |
|
Centration (Arc min) |
5' |
5' |
3' |
|
Dia. To Thick Ratio |
9~50:1 |
||
|
Coating (T% avg) |
96% @ 3 - 5um / 7 - 14um. 95% @ 4 - 12um |
||
|
Materials |
Optical Grade Germanium |
||
Send product request
Other supplier products
 |
Diffractive Optical Elements | Diffractive Optical Elements (DOEs) have complex microstructural surfaces to manipulate (or “shape”) and split laser beams in an energy... |
 |
Penta Prism | Penta Prismsare used to define right angles in optical systems. Penta Prisms, which provide right handed images, feature a ray deviation of 90°... |
 |
Penta Prism | Penta Prisms are used to define right angles in optical systems. Penta Prisms, which provide right handed images, feature a ray deviation of 90°... |
 |
Gallium Arsenide Lenses | GaAs is semi insulator, which can be used in large power continuous CO2 laser system to replace the zinc sulfide in lens or mirror forms. GaAs is s... |
 |
Collimating Lenses | Collimating Lenses Leave A Message! Hyperion Optics Hyperion Optics offers economical custom collimating lens designthat can effectively correct... |
Same products
 |
Cutomizable CLZ Silicon Domes | Seller: Changchun Long Ze Precision Optics Co., Ltd | The world of technology is constantly evolving, pushing the boundaries of what is possible. In th... |
 |
Custom MgF2 Coated Achromatic Lenses | Seller: Changchun Long Ze Precision Optics Co., Ltd | Our MgF2 coating can be less than 1.75% reflectance @ 400-700nm, AOI=0°. And we can produce h... |
 |
Fused Silica Precision Lenses for Solid State Laser applications | Seller: Changchun Long Ze Precision Optics Co., Ltd | A biconvex lens is a positive lens characterized by a longer focal length in the middle and short... |
 |
Rod Lenses | Seller: Shandong Yanggu Constant Crystal Optics, Inc | Rod lensesare precision optical components designed for a variety of applications, including fibe... |
 |
light beam splitter | Seller: Changchun Hongsheng Optoelectronics Co.,Ltd. | light beam splitter Polarizing cube beamsplitters split randomly polarized beams into two ... |
