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UV
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High-Quality Coatings Managing your UV Radiation

  • Large variety of non-absorbing coating materials including Hafnium dioxide
  • Coating on various substrates (e.g. Borofloat, Sapphire, BK7)
  • High temperature-resistance
  • Customized coating designs (UVA-UVC)

Glass Filter - UV Transmission at 340 nm

  • Special glass substrate with one-side dielectric coating
  • Thickness: 2 mm
  • Size: according to customer specification
  • Central wavelength of transmission peak: approx. 340 nm
  • Half width: approx. 70 nm
  • Max. transmission peak: > 75%
  • Excellent VIS and NIR blocking up to 2000 nm
  • blocking: T(abs) < 1% and T(avg) < 0,2% from 400 - 2000 nm
  • High UV Stability (low solarization)
Transmission of a dielectric coating design on a 2 mm glass substrate with peak transmission > 75% at 340 nm under AOI 0°

Glass Filter - UV Transmission at 365 nm

  • Special glass substrate with one-side dielectric coating
  • Thickness: 3 mm
  • Size: according to customer specification
  • Central wavelength of transmission peak: approx. 365 nm
  • Half width: approx. 50 nm
  • Max. transmission peak: > 70%
  • Excellent VIS and NIR blocking up to 900 nm
  • blocking: T(abs) < 1,5% and T(avg) < 0,5% from 400 - 900 nm
  • High UV Stability (low solarization)
Transmission of a dielectric coating design on a 3 mm glass substrate with peak transmission > 70% at 365 nm under AOI 0°

Applications

Both UV bandpass filter are suitable for the water purification with appropriate UV sources which have a strong emission in the region of about 340 (365) nm, but also for other UV applications in industry where a desired UV radiation in the region of 340 nm (365) nm shall be efficiently separated from disturbing radiation in wavelength regions in the VIS and IR.

Available from Stock

  • Glass filter UV blocking
    (HfO2 coating on Borofloat 1.1 mm)
  • UV-IR filter
    (ZrO2 coating on Borofloat 1.1 mm)

Product Recommendations

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