VW – VW Reflectance for mirror calibration

Directional VW Reflectance Set

For the most accurate reflectance calibration of high reflectance materials


• Measurement of the square of the reflectance
• Angles of incidence in the range 8 – 75 degrees (80 degrees for large enough front surface
• Angular calibration through averaging over “positive” and “negative” angles
• Easy alignment through the use of a Class II miniature laser
• Wavelength range of 190 – 2600 nm at (near-)normal incidence (in combination with an
integrating sphere detector)
• Wavelength range of 220 – 2500 nm at oblique incidence (limited by the range of the
• Separate measurements for p- and s-polarisation