WNF-200 Micro Facula Uniformity Tester is a professional instrument specially designed to test and measure the uniformity of micro irradiation facula, which is suitable for measuring the uniformity of light source at the focusing end face of medical endoscope illumination facula output, and can also be widely used in the uniformity test of micro luminous panel in industrial production. The instrument uses stable silicon photodetector, matching strict visual filter and precision integrated amplifier. Therefore, the whole machine has the outstanding characteristics of portability, stability, accuracy and convenient use.