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 |
||
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
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... |
 |
Achromatic Doublet Lenses | At Hyp design, with decades fabrication experiences, we have been providing our customer a vast number ofachromatic lensesfor their applications in... |
 |
Chalcogenide Lenses | Chalcogenide glassis containing one or more chalcogens (sulfur, selenium and tellurium, but excluding oxygen). Chalcogenide components are becoming... |
 |
Achromatic Cylindrical Lenses | Achromatic cylindrical lenses are ideal for eliminating spherical and chromatic aberration at the image plane, for example using monochromatic ligh... |
 |
F-theta Lenses | The F-thetascanning lenses are commonly used in laser scanning systems that employ two-axis galvanometers to scan a specified area but cannot toler... |
Похожие товары
 |
Double Convex Lenses | Продавец: Shandong Yanggu Constant Crystal Optics, Inc | Double Convex Lensesare used in image relay applications, or for imaging objects at close conjuga... |
 |
Ball Lenses | Продавец: Shandong Yanggu Constant Crystal Optics, Inc | Ball Lensesare commonly used to improve signal quality in fiber coupling applications, or for use... |
 |
Cutomizable CLZ Silicon Domes | Продавец: 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 | Продавец: 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 | Продавец: 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... |
