RT series and SDR series are designed to measure optical reflectance and transmittance properties of any kind of materials under study; such as plastic, paper, metallic and paints. It provides an easy way to characterize scattering lobes of samples and export the data to optical simulation tools such as ASAP, Light Tool, Speos and etc. None motorized version is also available to applications of general reflectance and transmittance measurement at fixed angles. SDR-300S, state of the art BSDF system, frees engineer from time consuming job. Traditional goniometric systems are familiar to engineers and widely accepted method in laboratory in the mean while they have their own hinderence to be adapted to users, one; measurement time it takes minimum 4hours for single scan to get reasonable data. two; Optical alignment, Data is very much dependant on system alignment. Three; Price, They are fairly high in price. SDR series can be dispatched to production line of optical film, automotive coating, paper, metal sheet, e-paper, reflector and etc....