Motion/Intrusion Filter
 Gas Analysis Filter

  • Infrared Narrow Band Filters are designed for the detection and measurement of atmospheric gases. Many gases show a specific absorption line in the mid to far infrared range. With a filter which allows the monitoring of this specific gas absorption, the measurement of gas concentration is possible.

  • General Specification

  • Substrate : Silicon
  • Size Tolerance : ¡¾ 0.2mm.
  • Thickness : 1.0mm (nomial)
  • Thickness Tolerance : ¡¾ 0.025mm
  • Surface Quality : F-F per MIL -F-48616
  • Humidity : 24 hour per MIL -C- 675A
  • Abrasion : 20 eraser rub per MIL-M-M-13508C


  • Filter Number Identification
    Co
    -
    4.64
    -
     Size

    Filter Code
    -
    Center WaveLength
    -
      B:F25.4mm C:F100.0mm C:F125.0mm)

    Gas Analysis Filter
    Filter No.
    CWL (§­)
    HBW (§­)
    Edge Slope
    Tpeak (%)
    Blocking (%)
    Substrate
    Ave. T Abs. T
    IR NBPF 4.26 4.26 0.18 < 3% > 75 < 0.1 < 1.0 4" Silicon
    IR NBPF 4.43 4.43 0.06 < 3% > 75 < 0.1 < 1.0 4" Silicon
    IR NBPF 4.24 4.24 0.09 < 3% > 75 < 0.1 < 1.0 4" Silicon
    IR NBPF 4.33 4.33 0.16 < 3% > 75 < 0.1 < 1.0 4" Silicon
    IR NBPF 4.4 4.4 0.7 < 4% > 82 < 0.1 < 1.0 4" Silicon
    IR NBPF 5.48 5.48 0.58 < 4% > 82 < 0.1 < 1.0 4" Silicon
    IR NBPF 3.37 3.37 0.19 < 3% > 75 < 0.1 < 1.0 4" Silicon
    IR NBPF 3.29 3.29 0.16 < 3% > 75 < 0.1 < 1.0 4" Silicon
    IR NBPF 3.09 3.09 0.16 < 3% > 75 < 0.1 < 1.0 4" Silicon
    IR NBPF 3.33 3.33 0.16 < 3% > 75 < 0.1 < 1.0 4" Silicon
    Ge IR NBPF 11.3 11.3 0.2 < 3% > 70 < 0.1 < 1.0 1" Germanium
    Ge IR NBPF 10.27 10.27 0.21 < 3% > 65 < 0.1 < 1.0 1" Germanium
    Ge IR NBPF 12.4 12.4 0.18 < 3% > 65 < 0.1 < 1.0 1" Germanium
    IR NBPF 3.95 3.95 0.09 < 3% > 78 < 0.1 < 1.0 4" Silicon

    Filter No.
    Cut on (§­)
    Cut off (§­)
    Edge Slope
    Tpeak (%)
    Blocking (%)
    Substrate
    Ave. T Abs. T
    IR WBPF 4.2-4.7 4.17 4.79 < 3% > 70 < 0.1 < 1.0 4" Silicon
    IR WBPF 8-14 8 14 < 3% > 80 < 0.1 < 1.0 4" Silicon

    PDF File Down Load
         IR LWP & AR Filters - SPO.pdf
         IR Narrow Band Pass Filters - SPO.pdf
         IR Wide Band Pass Filters - SPO.pdf