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 ...

While VR is becoming really immersive, it still can’t compete with a game of good old laser tag to get the blood ... and WS2812 RGP LEDs for light effects. IR Lasers are used as emitters to ...