Product type: Optical Windows. Application: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc. Model: RAY-OW045#.
Overview
Germanium Optical Windows/Germanium Windows/Optcial Germanium Window/Germanium Lens: an optical lens in Optical Glass (Optical Grade Germanium substrate). Listed geometry: thickness 2.0mm, 3.0mm, 5.0mm or Custom Manufacturing, single-lens shape. Optical / electrical data: wavelength 3-12um, transmittance 80%-90%. Coating: Broadband Coating; surface quality 40-20 Scratch-Dig or Custom Manufacturing. Typical applications: Lighting, Medical, Optical, Photography and Laser. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Optical Glass |
|---|---|
| Substrate | Optical Grade Germanium |
| Type | Optical Windows |
| Shape | Single-lens |
| Thickness | 2.0mm, 3.0mm, 5.0mm or Custom Manufacturing |
| Transmittance | 80%-90% |
| Coating | Broadband Coating |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Usage | Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc |
| Model NO. | RAY-OW045# |
| Lenses Color | Gray |
| Coating Wavelength Range | 3-12um |
| Products Name | Germanium Optical Windows |
| Lens Substrates | Optical Grade Germanium |
| Optional I | Optical Grade Germanium |
| Optional II | Equivalent Optical Grade Germanium |
| Applying Fields I | Application of low power CO2 laser in laser. |
| Applying Fields II | Application of CO2 laser cavity imaging |
| Main Optical Tech Specification | Lens Shape |
| GEW | +0.0/-0.1 mm |
| Popular Physical Size Specification | Basic Data |
| Main Cooperation Materials Manufacturers | CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |
Technical data
| Optional I: | Optical Grade Germaniumfrom CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,ETC |
|---|---|
| Optional II: | Equivalent Optical Grade GermaniumMade in China, C-laser own brands |
| Applying Fields I: | Application of low power CO2 laser in laser. |
|---|---|
| Applying Fields II: | Application of CO2 laser cavity imaging |
| ***** |
| Lens Shape | Optical Parallel Window | Surface AccuracyIrregularity | – |
| Lens Material | Optical GradeGermanium | Diameter Tolerance | – |
| Damage Threshold | – | Dia. Tolerance | 10GE20: ±0.2 mmGEW: +0.0/-0.1 mm |
| Thickness Tolerance | – | Parallelism | – |
| Surface Quality | 40-20cratch-dig | Clear Aperture | 10GE20: central 85% of diameterGEW: central 90% of diameter |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “Basic Data”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “40-20 Scratch-Dig or Custom Manufacturing”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — listed as “Broadband Coating”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see AR-Coated Glass Materials for High-Transmission Optical Parts. How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. For an application example, read Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is AR-Coated High-Transparency Optical Glass.
