Infrared filter HWB1-RM-86 1. High quality and low price 2. according to customer requirements. Infrared glass HWB1-RM-86 infrared glass (Black Optical Glass ) include :HWB760, HWB780, HWB800, HWB830, HWB850, HWB900, HWB930 etc. Red glass include :HB600,HB610,HB630,HB640,HB650,HB670,HB685,HB700,HB720 , 200 nm to 2500 nm spectral range of a full range of optical glass. infrared glass HWB1-RM-86