GETTING MY COOLED MID-WAVE INFRARED LENS TO WORK

The Lens of a THermal,imaging ir digicam is just not designed away from glass similar to the lens of a traditional CCTV digicam. The Homes of glass mean that it does not transmit infrared radiation quite well and will be an impractical lens material for thermal imagers. Rather Germanium is used for Flir lenses.As n and m are integers, diffraction a