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  • 670nm Short-Pass Dichroic Filter

    This product is a 670 nm shortpass dichroic beamsplitter specifically designed for optical systems with a 45°angle of incidence. Manufactured using high-performance dielectric multilayer coating technology, it provides high transmission with an average transmittance greater than 90% over the 360-650 nm band, while simultaneously achieving efficient reflection in the near-infrared regions of 680-1080 nm (s-polarization) and 700-1010 nm (p-polarization). The filter features standard fluorescence-grade edge steepness, excellent spectral stability, and outstanding environmental reliability. It is suitable for laser beam splitting, fluorescence microscopy, multispectral imaging, and biomedical detection applications. With a laser-grade optical flatness design, the filter is ideal for optical systems that demand high beam quality, offering a stable and reliable spectral separation solution for research, medical, bioanalytical, and industrial inspection equipment.

    Product features:Average transmittance > 90% over 360–650 nm;Optimized for 45° incidence;Standard fluorescence‑grade edge steepness;Suitable for fluorescence microscopy and laser beam-splitting systems;High optical damage resistance, stable performance over long‑term use

    Part Number:MP-DF-670

    Application area:Fluorescence microscopy | Laser optical systems | Biomedical detection | Research and industrial optics

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    Main parameters
  • Core parameters
  • Edge Wavelength Transmission Band Reflection Band

    670 nm Tavg > 90% 360 – 650 nm 680–1080 nm

  • Dimension Drawing
  • General Parameters

    Specification

    Value

    Transmission Band

    Tavg > 90%  360 – 650 nm

    Reflection Band, p-pol

    700 – 1010

    Reflection Band, s-pol

    680 – 1080

    Edge Steepness

    Standard (for Fluorescence)

    Edge Wavelength

    670nm

    Angle of Incidence

    45 ± 1.5 °

    Cone Half-angle

    2°

    Flatness / RWE Classification

    Laser

    Reflected Wavefront Error

    < 6λ P-V RWE @ 632.8

    Group Delay Dispersion

    GDD Details

    Clear Aperture

    ≥ 80% (elliptical)

    Transverse Dimensions, LxW

    25.2 mm x 35.6 mm

    Filter Thickness, Unmounted

    1.05mm

    Filter Thickness Tolerance, Unmounted

    ± 0.05mm

    Surface Quality (Scratch-Dig)

    60-40

    Filter Effective Index

    1.68

    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

    Reflective surface marked with part-Orient in incoming light

     

    Spectral Characteristic Curves

     

    Transmittance-Wavelength Spectrum

    图片1.png 

     

     

    Optical Density Spectrum

    图片2.png 


    Optional Configurations

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    Downloads

    Request for Quotation

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  • Product title: 670nm Short-Pass Dichroic Filter
  • Product link: https://www.idealphotonics.com/product/detail/1729.html
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    • Other Requirements:

    • 10+ 10 Years of Experience
    • 50 50 + Countries Bussiness
    • 10000 10k + Diodes sold worldwide
    • 30 30+ Invention patent
    • 10 10+ Advanced Optical Solutions

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