Infrared Filter
Infrared Filter
Optical Filter
Optical Lens
Tian Cheng optics can supply long-wave pass filter, short wave pass filter, wide band pass filter, narrow band pass filter, super narrow band pass filter and high reflection filter etc. It covers 1um to 40 um.
Specification:
|
Material |
Silicon or Germanium |
|
Diameter Tolerance |
+0.0,-0.2mm |
|
Surface Quality |
60-40 scratch and dig |
|
Clear Aperture |
>85% |
|
Parallelism |
< 3 arc minute |
|
Flatness |
Power <5 fringes (2.5λ); Irregularity 1 fringe (λ/2) |
|
Protective Bevel |
<0.25 mm x 45° |
|
Coating |
Uncoated |
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