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  • 427 nm Bandpass Filter

    The MP-BPF-427 is a high-performance narrowband bandpass optical filter with a center wavelength of 427 nm. It is designed to transmit the target band with high transmittance while providing excellent out-of-band blocking across the ultraviolet and visible range. Manufactured with hard multi-layer dielectric coatings, this filter features high transmittance, high spectral stability, and excellent environmental durability. It is suitable for applications such as fluorescence detection, Raman spectroscopy, laser systems, biological imaging, microscopy, and scientific instrumentation.

    Product features:Center wavelength 427 nm;Average transmittance > 93%;Full width at half maximum (FWHM) 14 nm;Minimum guaranteed bandwidth 10 nm;Designed for 0°angle of incidence;Hard dielectric coating, high stability

    Part Number:MP-BPF-427

    Application area:Fluorescence microscopy | Laser-induced fluorescence | Raman spectroscopy systems | Spectral detection equipment | CCD/CMOS camera filtering systems

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    Main parameters
  • Core parameters
  • Laser Wavelength Transmission Band

    427 nm Tavg > 93% 422 – 432 nm

  • Dimension Drawing
  • General Parameters

    Specification

    Value

    Transmission Band

    Tavg > 93%  422 – 432 nm

    Blocking Band

    ODavg >5  200 – 275 nm

    Blocking Band

    ODavg > 5  275 – 408 nm

    Blocking Band

    ODavg > 3.3  408 – 413 nm

    Blocking Band

    ODavg > 3.3  440 – 445 nm

    Blocking Band

    ODavg > 5  445 – 800 nm

    FWHM Bandwidth

    14nm

    Guaranteed Minimum Bandwidth

    10

    Angle of Incidence

    0 ± 5°

    Cone Half-angle

    Clear Aperture

    ≥21mm

    Transverse Dimensions, Diameter

    25 mm

    Filter Thickness, Mounted

    5.0 mm

    Filter Thickness Tolerance, Mounted

    ±0.1mm

    Filter Thickness, Unmounted

    2.0 mm

    Filter Thickness Tolerance, Unmounted

    ±0.1mm

    Surface Quality (Scratch-Dig)

    60-40

    Filter Effective Index

    2.02

    Optical Damage Rating

    Testing has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hrs.

    Orientation

    Arrow on ring is preferred direction of propagation of light

     

    Spectral Characteristic Curves

     

    Transmittance-Wavelength Spectrum

    图片2.png 

     

     

    Optical Density Spectrum

     图片3.png


    Optional Configurations

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    Downloads

    Request for Quotation

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  • Product title: 427 nm Bandpass Filter
  • Product link: https://www.idealphotonics.com/product/detail/1667.html
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