Avian Technologies is equipped to perform measurements of regular
and total transmittance at normal incidence and, in some cases, reflectance
versus incidence angle for non-scattering samples.
Regular transmittance measurements are performed on a Perkin-Elmer 9/19
spectrophotometer with photomultiplier/lead sulfide detectors. Non-scattering
samples up to 4" square can be measured from 200-3000 nm Scattering
samples require an integrating sphere for collection of the scattered radiation.
Depending on the size and scattering of the samples and the wavelength range needed,
either a 60 mm or 150 mm integrating sphere accessory will be employed.