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Infrared bandpass filter

The infrared bandpass filter has a wavelength range of 0.8–14 μm and boasts excellent performance, featuring high transmittance, strong out-of-band rejection, superior surface quality, and uniform coating.

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  • Product Description
  • Parameter Introduction
  • Precautions
  • Product Performance

    Parameter item

    Specification description

    Center wavelength

    0.8–14 μm

    Half-peak bandwidth

    30-700nm

    Peak transmittance

    ≥80% (customizable upon request)

    Product dimensions

    According to customer needs

    Product material

    Si, Ge, ZnSe, ZnS (customizable upon request)

    Spectral curve

    Gas detection filter

    Primarily used in online monitoring equipment for infrared optical measurement of smoke and dust concentrations, monitoring of smoke and dust emissions from pollution sources, monitoring of dust concentrations in industrial manufacturing processes, and dust load monitoring devices in production workshops and factory buildings.

    Detect gas type

    Center Wavelength (μm)

    Transmittance (%)

    Half-bandwidth (μm)

    Depth limit

    CO

    4.5

    85

    0.09/0.14

    OD3

    CO₂

    4.3

    85

    0.09/0.14

    OD3

    CO₂

    10.6

    85

    0.09/0.14

    OD3

    C₂H₄

    10.6

    85

    0.09/0.14

    OD3

    C₃H₆

    11.6

    85

    0.09/0.14

    OD3

    C₂H₂

    13

    85

    0.09/0.14

    OD3

    CH₄

    3.4

    85

    0.09/0.14

    OD3

    C₆H₁₄

    3.4

    85

    0.09/0.14

    OD3

    NO

    5.2

    85

    0.09/0.14

    OD3

    NO₂

    6.2

    85

    0.09/0.14

    OD3

    N₂O₅

    8

    85

    0.09/0.14

    OD3

    NH₃

    6.1

    85

    0.09/0.14

    OD3

    NH₃

    10.753

    85

    0.09/0.14

    OD3

    NH₃

    10.341

    85

    0.09/0.14

    OD3

    CH₂O

    3.597

    85

    0.09/0.14

    OD3

    HCL

    3.5

    85

    0.09/0.14

    OD3

    H₂S

    7.6

    85

    0.09/0.14

    OD3

    SO₂

    7.3

    85

    0.09/0.14

    OD3

     

    Application areas

    1. Security Surveillance Field
    2. Infrared Gas Analyzer
    3. Night vision products
    4. Infrared detector
    5. Infrared Receiver
    6. Infrared sensing

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