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4-channel multispectral filter

Multispectral filters are precisely fabricated using a combined lithography and coating process. High-precision replication lithography is employed to create deposition masks, and high-performance optical filter films for each spectral band are sequentially deposited within the defined patterns. These multispectral filters feature high transmittance and exceptional filtering performance. Multiple filter channels are integrated onto a single substrate with extremely high spatial alignment accuracy. The products find wide applications in space-based multispectral imaging, multispectral imaging spectrometers, and medical multispectral imaging.

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  • Product Description
  • Parameter Introduction
  • Precautions
  • Product Performance

    Type Multispectral filter
    Performance parameters
    Spectral range 300-1200nm
    Number of spectral channels 4
    Graphical error ≤2 μm
    Minimum width ≤0.7mm
    Peak transmittance ≥95%
    Out-of-band cutoff frequency OD3

    Spectral curve

     

    Application areas

    1. Multi-spectral imaging instrument for spatial applications
    2. Multispectral Imager
    3. Medical Multispectral Imaging Device

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