Kunming Yulong Optical & Electronics Technology Co., Ltd is a hi-tech company specialized in optical film in China. Our company have passed ISO9001 system certificate in 2005. At present Yulong owns 4 high vacuum coating machines with chamber sizes varied from 700nm to 1200mm,and includes 1200mm multi-layer coating machine made in Korea and three high-vacuum coating machine made in China. The coaters are all equipped electric beam gun, ion source, optical or crystal film thickness monitors, two sets of spectrum-Shimadzu UV-2401 and UV-3150 imported from Japan, a sets of ultrasonic washing machine. Our main products are AR coatings, metal & dielectric high reflectance mirrors, IR-cut filters, UV/IR cut filters, UV/ VIS /NIR narrow bandpass filters, beamsplitter, laser film, dichroic filters, longpass filters, shortpass filters, cold mirrors, color filters, lens for auto darkening welding helmets and other optical coating according to customer requirement.

IR filters, infrared filters, edge filters, ar coatings, metal & dielectric high reflectance mirrors, IR-cut filters, UV, IR cut filters, UV, VIS, NIR narrow bandpass filters, beamsplitter, laser film, dichroic filters, longpass filters, shortpass filters, cold mirrors, color filters, lens for auto darkening welding helmets.