Research on transmittance/reflectance test system of optical lens based on differential measurement

摘要

We designed an optical lens transmittance/reflectance test system, which can measure both the transmittance and the reflectance of the sample under different incident angles at the same time, based on differential measurement. This paper elaborates the system composition and working principle, and demonstrates it by experiments. The experiments show that the measurement accuracy of the transmittance/reflectance of white light can reach 0.5%, and that of infrared band can reach 1%.