Conventional measurement of bidirectional scattering distribution function (BSDF) and total transmittance (TT) is a serious topic. We have proposed a screen image synthesis (SIS) BSDF meter that provides high-speed and precise measurement. However, the measurement of TT using integrating sphere cannot offer a precise measurement. Therefore, we propose a calibration method that using SIS BSDF meter, responsivity of the integration sphere photometer and integration transmission power. It brings us not only precise BSDF function but precise TT measurement.
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