If you’ve used a diode laser engraver or cutter ... [Makers Mashup] shows in a video how to use an adjustable IR filter to cut out all the light bleed to get a sharp image to make focusing ...

The U.S. Army plans to choose a few teams from a larger pool to compete to develop its Enduring High Energy Laser, or HEL, system for short-range air defense in early 2025, Lt. Gen. Robert Rasch ...