We offer a wide variety of calibrated standards for reflectance and transmittance measurements, include standards for diffuse and regular reflectance, colour, wavelength calibration (both visible and NIR), and fluorescence for both optical brightness and chromatic fluorescent materials. In addition, we offer standards for regular transmittance, both for photometric scale (neutral density filters), colour (Schott and Hoya Colour Filters) and wavelength calibration (Holmium and Didymium Oxide glasses).

Key Features

  • Reflectance standards 250 – 2500 nm