Filter Coatings

Filter Coatings

Optical filter coatings are designed to precisely control light transmission, reflection, and absorption across specific wavelength ranges. These coatings enhance optical system performance in imaging, sensing, laser systems, biomedical devices, and aerospace applications.

At Optical Filter Source, we specialize in custom optical filter coatings for glass and crystalline substrates, delivering precise spectral control across the UV, visible, NIR, and MWIR regions.

Key Benefits of Optical Filter Coatings

  • High Transmission & Selectivity – Precisely engineered to allow or block specific wavelengths
  • Low Absorption & Scattering – Maintains optical clarity and signal integrity
  • Durable & Environmentally Stable – Designed to meet MIL-PRF-13830B and MIL-C-675C durability standards
  • Customizable Spectral Ranges – Coatings available from ultraviolet (UV) to mid-wave infrared (MWIR)

Types of Optical Filter Coatings

  • Bandpass Filters – Transmit specific wavelength ranges while blocking others
  • Edge & Notch Filters – Longpass and shortpass filters to precisely control spectral cutoff
  • Neutral Density (ND) Filters – Reduce light intensity while maintaining spectral balance
  • Dichroic & Beamsplitter Coatings – High-efficiency coatings for beam steering and wavelength separation
  • Anti-Fluorescence & Biomedical Filters – Specialized coatings for lab instruments and fluorescence microscopy

Applications of Optical Filter Coatings

  • Laser & Imaging Systems – High-precision spectral filtering for optical instrumentation
  • Biomedical & Life Sciences – Fluorescence imaging, flow cytometry, and diagnostic devices
  • Aerospace & Defense – Filters for remote sensing, targeting, and surveillance optics
  • Machine Vision & Industrial Automation – Optical filtering for robotics, sensors, and AI-driven systems

Optimize Your Optical System with Custom Filter Coatings

With state-of-the-art coating technology and expertise in spectral engineering, Optical Filter Source delivers custom optical filter solutions for even the most demanding applications

Technical Information