780nm 808nm 980nm High Transmittance IR Laser Focusing Lens 16mm Diameter Focal Length 39mm Glass Lens
https://www.vogueparade.com/shopping/EN/200001493/1/1005003462853024/780nm-808nm-980nm-high-transmittance-ir-laser-focusing-lens-16mm-diameter-focal-length-39mm-glass-lens//