1.940µm Filter for Water Detection (H2O)

Stock Water Filter

Part Number: NBP-1940-42-25

25 mm diameter sample.

£250.00 (Free Shipping)

  • Stock Water Filters “on the shelf” for next day shipping, 25 mm diameter x 0.5 mm thick.
  • Vortex’s trademark RockArd© deposition technology makes our filters highly durable and suitable for the toughest environments.
  • All of our filters exhibit high angular tolerance, extremely low change with temperature and very high resistance to thermal shock.

Custom Quote

For large volumes and specific enquiries please contact us.

Email: enquiries@vortexopticalcoatings.co.uk

Call: +44 (0) 1455 613029

Optical Specification

Centre Wavelength1940 nm (+/- 8nm)
FWHM42 nm (+/- 5nm)
Transmission Peak>85%
Blocking RangeUV – 3.5µm
Angle Of Incidence
Substrate25 mm Diameter, 0.5 mm Thick
Surface QualityLess than 60-40 Scratch-Dig

Environmental Specification

AdhesionMIL-C-48497APara 4.5.3.1
HumidityMIL-C-48497APara 4.5.3.2
Mild AbraisionMIL-C-48497APara 4.5.3.3
Severe AbrasionMIL-C-48497APara 4.5.5.1
CleanabilityMIL-C-48497APara 4.5.4.2
Water SolubilityMIL-C-48497APara 4.5.5.3

Spectral Performance

Suitable Detectors

These Filters are suitable to be used in Lead Sulphide (PbS) and Indium Gallium Arsenide (InGaAs) type detectors.