Our factory produce infrared absorbent and color corrected filters for medical and surgical lighting application purposes. The infrared absorbent glass compounded Na2SiO3, CaSiO3, SiO2, Cu2O, CuO, CdO, Au, CO2O3, Ni2O3, MnO2, AgCl/AgBr, etc. formed most types of cylindrical, semi-cylindrical and disk types heat absorbent glass filters. Start from 900nm of wave length, 85% of IR ray can be absorbed. The filters eliminate most IR ray / heat which generated by the tungsten halogen light sources. The filters will help to hamper bacteria growth under a warm environment which created by normal lighting. The item be used for medical & surgical apparatus widely. Details please contact us by email.