Post #3824900

A #CRT isn't the only way to scan a phosphor screen with a particle beam! You could also use a laser. This avoids most of the problems with CRTs: * No heavy envelope or dangerous vacuum. Light isn't blocked by air. * No high voltage. Lasers don't need it. * No x-ray emissions. * Lasers use less power. Only thing is how do you deflect the beam? Best answer so far: mechanically, with a moving mirror. Sounds pretty fragile. Still, neat. Retro-futuristic “what's old is new again” vibe.