Narrow Bandpass Filter lens Glass Lens D15mm T1.5mm For IR Infrared Diode Lasers 785nm 775nm-795nm
https://www.vogueparade.com/shopping/EN/200001493/1/1005003462917560/narrow-bandpass-filter-lens-glass-lens-d15mm-t15mm-for-ir-infrared-diode-lasers-785nm-775nm-795nm//