1. rich experience for ir pass filter 2. No bubble 3. good surface quality 4 ... . the competitive price 5. good reputation ir pass filter1.Material: Black Optical Glass (HWB760, HWB780, HWB800, HWB830 ... into4.Thickness business trip:±0.01mm±0.02mmThe ir pass filter can be used in infrared gas analyzer, infrared ... police, military and other high-tech products. ir pass filter RG760 - 930