520nm Bandpass Filter

520nm light is a green light within the visible spectrum, often associated with high visibility and specific interaction with certain fluorescent materials or biological samples.

  • Application 1: In fluorescence microscopy, to isolate and detect green fluorescent signals emitted by labeled biomolecules, blocking unwanted wavelengths to enhance image clarity.
  • Application 2: In environmental sensing devices, to selectively transmit 520nm light for measuring chlorophyll fluorescence in plants or algae, enabling accurate monitoring of photosynthetic activity.
  • Application 3: In LED-based industrial inspection systems, to ensure only the 520nm wavelength passes through for precise color matching or defect detection on green-sensitive surfaces.

  • Fluorescence Microscopy (Emission Filter for Fluorophores like FITC/GFP)

    • FWHM = 20nm
    • OD> 5

    Isolate the green fluorescence signal (emission peak ≈520 nm) from the brighter blue excitation light (e.g., 488 nm laser) to enhance the signal-to-noise ratio and image clarity.

    BP520-20 

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