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RFQ

Ge lens

Product Info

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