Germanium has excellent transmission across 2-14 micron waveband and be used in both mid-wave infrared and long-wave infrared systems. Germanium is a most widely used infrared material for windows and lens in thermal-imaging systems.
Specifications
Material: | Germanium, mono-crystalline |
Diameter: | +0/-0.10 mm |
Thickness: | +/-0.1mm |
Clear aperture: | >80% of central diameter |
EFL: | +/- 1% |
Centration: | < 3 arc minutes |
Surface quality: | 60-40 scratch and digs |
Power: | |
Irregularity: | λ/40@10.6µm |
Coating: | AR@10.6µm, R<0.5% per surface |
Bevel: | Protective bevel |
Germanium has excellent transmission across 2-14 micron waveband and be used in both mid-wave infrared and long-wave infrared systems. Germanium is a most widely used infrared material for windows and lens in thermal-imaging systems.
Specifications
Material: | Germanium, mono-crystalline |
Diameter tolerance: | +0/-0.10 mm |
Thickness tolerance: | +/-0.1mm |
Clear aperture: | >80% of central diameter |
EFL: | +/- 1% |
Centration: | < 3 arc minutes |
Surface quality: | 60-40 scratch and digs |
Power: | |
Irregularity: | λ/40@10.6µm |
Coating: | AR@10.6µm, R<0.5% per surface |
Bevel: | Protective bevel |
